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Contents
- The climate of Chilliwack
- The best time to visit Chilliwack
- The worst time to visit Chilliwack
- Spring weather in Chilliwack
- Summer weather in Chilliwack
- Autumn weather in Chilliwack
- Winter weather in Chilliwack
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The climate of Chilliwack
With geographic positioning on the northern end of the North American continent, Chilliwack falls within a dominantly Cfb climate classification according to the Köppen climate system. This classification represents a Marine west coast climate with a warm summer. Throughout the year, Chilliwack experiences moderate variations in weather conditions characterized by relatively cool to warm temperatures, high humidity levels, consistent precipitation, and brief instances of snowfall.
A spatial analysis of yearly temperatures highlights a fluctuating pattern; winter months witness temperatures descending to -2.8°C (27°F) whereas in summer, they ascend to 21.9°C (71.4°F). Humidity portrays a similar trend, from a high of 91% during the colder months to a noticeable dip in the warm season with the lowest hovering around 74%. Furthermore, the city is subjected to regular precipitation throughout the year with December and January experiencing the highest rainfall at 173mm (6.81") and 158mm (6.22") respectively.
Snowfall, a distinctive weather occurrence in the region, is primarily observed in winter with an average snowfall height of 100mm (3.94") in December and 103mm (4.06") in January. Cloud cover varies moderately over the year, with cloud percentages ranging from a clear sky of 35% in August to a rather overcast 65% in March. Wind speed in Chilliwack remains considerably consistent year-round, fluctuating between 5km/h (3.1mph) to 6.9km/h (4.3mph).
A spatial analysis of yearly temperatures highlights a fluctuating pattern; winter months witness temperatures descending to -2.8°C (27°F) whereas in summer, they ascend to 21.9°C (71.4°F). Humidity portrays a similar trend, from a high of 91% during the colder months to a noticeable dip in the warm season with the lowest hovering around 74%. Furthermore, the city is subjected to regular precipitation throughout the year with December and January experiencing the highest rainfall at 173mm (6.81") and 158mm (6.22") respectively.
Snowfall, a distinctive weather occurrence in the region, is primarily observed in winter with an average snowfall height of 100mm (3.94") in December and 103mm (4.06") in January. Cloud cover varies moderately over the year, with cloud percentages ranging from a clear sky of 35% in August to a rather overcast 65% in March. Wind speed in Chilliwack remains considerably consistent year-round, fluctuating between 5km/h (3.1mph) to 6.9km/h (4.3mph).
The best time to visit Chilliwack
Given the moderate temperatures, stable wind speed, and abundant sunlight, the period from June to September showcases ideal climatic conditions for tourism in Chilliwack. During this phase, the average daytime temperature varies from a comfortable 17°C (62.6°F) to 21.9°C (71.4°F), offering tourists an opportunity to explore the city in pleasant weather. Furthermore, these months witness the least amount of rainfall, with August receiving a mere 31mm (1.22") of precipitation, which facilitates outdoor activities. The advantage of extended daylight hours, ranging from 15.3 hours in May to a peak of 16.2 hours in June, grants additional time for sightseeing and adventure sports.
The worst time to visit Chilliwack
Travelers might want to avoid visiting Chilliwack during the period between December and February. The city confronts the harsh winter weather with temperatures plunging as low as -2.8°C (27°F) in January and -3.4°C (25.9°F) in February. Furthermore, this period records the highest rainfall in a year; December receiving 173mm (6.81") and January receiving 158mm (6.22"), thereby limiting outdoor excursions.
Spring weather in Chilliwack
Spring in Chilliwack commences in March, spanning until May. The temperature gradually ascends from 5.2°C (41.4°F) in March to reach 15°C (59°F) in May. Spring presents shorter daylight hours initially, starting at 11.9 hours in March, however, increasing to 15.3 hours in May, accompanied by an increase in sunshine hours from 4.5 hours to 8.3 hours throughout the season.
Summer weather in Chilliwack
Summer stretches from June till August, offering mostly warm and dry conditions. The temperature ranges from 17°C (62.6°F) in June to a peak of 21.9°C (71.4°F) in August. Despite the shorter daylight hours compared to spring, the amount of sunshine received during summer remains high, averaging around 9.3 hours per day.
Autumn weather in Chilliwack
The autumn months of September through November witness a remarkable drop in temperature from 17.7°C (63.9°F) in September to 4.9°C (40.8°F) in November. The daylight hours shrink considerably during this season, dipping from 12.6 hours in September to only 9.1 hours in November.
Winter weather in Chilliwack
Winter in Chilliwack, extending from December through February, is marked by intense cold with the mercury dipping to as low as -2.8°C (27°F) in January. However, the average daytime temperature typically hovers around 1.3°C (34.3°F). These months also witness the highest precipitation levels, with snowfall registered in December and January.
Weather in January
January in Chilliwack, Canada, presents itself with a lingering chill. This is a period where warm clothes become essential amidst heavy snowfall. On average, snowfall reaches up to 100mm (3.94") contributing to a total of 3.8 days of snow, making the streets a winter wonderland. Weather in January »
Weather in February
February brings minor alterations in Chilliwack's weather conditions. Slight enhancements in temperature scenarios and reduction in snowfall set the stage for the approaching spring. The city experiences an average daily high and low temperatures ranging from 2.8°C (37°F) to -3.3°C (26.1°F). Weather in February »
Weather in March
March in Chilliwack welcomes a gradual upward shift in temperatures. The transition from winter to spring is at its peak, leading to a remarkable increase in daylight hours. The advent of spring signifies an increment in precipitation, amassing up to 140mm (5.51") rainfall across 21.2 days. Weather in March »
Weather in April
April showers sunlight over Chilliwack, Canada, draining away the remnants of the winter chill. The ascending temperatures and increasing daylight hours commence the arrival of spring in the city. April experiences a substantial decline in precipitation, with rainfall limited to 90mm (3.54") spread over 20.5 days. Weather in April »
Weather in May
May brings warmer weather to Chilliwack, serving as the threshold to the upcoming summer months. This period comes with longer daylight hours and the beauty of blooming flora in full swing. May's climatic conditions completely do away with snowfall, inviting more sunlit hours into the mix. Weather in May »
Weather in June
June in Chilliwack signifies the arrival of summer, characterized by increasing temperatures and extended daylight hours. A notable drop in precipitation sets the mood for sunny outdoor activities and exploration. Rainfall is seen limited to 62mm (2.44") across 16.4 days under the clear blue sky. Weather in June »
Weather in July
July in Chilliwack takes on a sun-drenched outlook with longer daylight, and warmth becoming the order of the month. The city basks in the summer bliss, graced by clear skies and a decreased likelihood of rainfall. In terms of climatic extremes, July presents the highest daily temperatures which hover from 21.7°C (71.1°F) to 8°C (46.4°F). Weather in July »
Weather in August
August carries forward the summer legacy of Chilliwack with a slight spike in temperatures. Frequently clear skies and long daylight hours set the perfect backdrop for sightseeing and outdoor activities. The month experiences the lowest precipitation levels in the year, with rainfall accounting for merely 31mm (1.22") over 10.2 days. Weather in August »
Weather in September
September marks the onset of autumn in Chilliwack, manifesting in the city's dropping temperatures and dwindling daylight hours. The turn of the season causes a surge in precipitation, resulting in wetter days. Despite an average rainfall of 72mm (2.83"), the city maintains its charm under the vibrant fall foliage. Weather in September »
Weather in October
October holds onto the autumn aura of Chilliwack, highlighted by vivid colours and crisp fall air. The descending temperatures make for comfortable strolls through the city's forested trails and parks. Appropriate for the season, the city sees a considerable amount of rainfall, around 115mm (4.53") spanning over 16.1 days. Weather in October »
Weather in November
November marks a shift in Chilliwack's weather, transiting from the fall crispness to the commencement of harsher winter conditions. Falling temperatures and shorter days hint at the forthcoming winter. With an intensified precipitation routine, November gets the highest rainfall reaching 171mm (6.73"). Weather in November »
Weather in December
December in Chilliwack introduces the winter season, marked by plummeting temperatures and gradual snowfall. The cityscape gets adorned in shades of white, forecasting a winter wonderland. The festive season combines with an average snowfall of 70mm (2.76"), providing a quintessential white Christmas. Weather in December »
Updated: Feb 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the most humid month in Chilliwack?
January is the most humid month, with an average relative humidity of 91%.
What is the rainiest month in Chilliwack?
January is the month with the most rainfall. Rain falls for 17.8 days and accumulates 173mm (6.81") of precipitation.
How much does it rain in Chilliwack?
In Chilliwack, during the entire year, the rain falls for 198.9 days and collects up to 1222mm (48.11") of precipitation.
When does it snow in Chilliwack?
Months with snowfall are January through April, November and December.
How many days does it snow in Chilliwack?
In Chilliwack, Canada, during the entire year, snow falls for 20.1 days and aggregates up to 375mm (14.76") of snow.
What is the month with the least sunshine in Chilliwack?
January has the least sunshine of the year, with an average of 3.5h of sunshine.
When is the lowest UV index in Chilliwack?
The months with the lowest UV index in Chilliwack, Canada, are January and November, with an average maximum UV index of 1.
When does it snow the most in Chilliwack?
The month with the most snowfall in Chilliwack is February, when snow falls for 5.7 days and typically aggregates up to 103mm (4.06") of snow.
When is Daylight Saving Time (DST) in Chilliwack?
On Sunday, 10. March 2024, at 2:00 am, Daylight Saving Time starts in Chilliwack, Canada, and the time zone changes from PST to PDT. Daylight Saving Time ends on Sunday, 03. November 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When it does not snow in Chilliwack?
In Chilliwack, Canada, snow does not fall in May through October.
When are the longest days in Chilliwack?
With an average of 16h and 12min of daylight, June has the longest days of the year in Chilliwack, Canada.
What is the least humid month in Chilliwack?
The least humid month is July, with an average relative humidity of 74%.
When is the highest UV index in Chilliwack?
July is the month with the highest UV index in Chilliwack, Canada, with an average maximum UV index of 5.
What month is the hottest in Chilliwack?
Chilliwack's August weather, marked by an average high temperature of 21.9°C (71.4°F) and an average low temperature of 8.7°C (47.7°F), is the warmest in the year.
What is the driest month in Chilliwack?
August is the month with the least rainfall. Rain falls for 10.2 days and accumulates 31mm (1.22") of precipitation.
What month has the most sunshine in Chilliwack?
With an average of 10h of sunshine, August has the most sunshine of the year.
What month is the coldest in Chilliwack?
Chilliwack, Canada, notes the coldest temperatures in December, with a average high of 1.3°C (34.3°F) and a low of -3.4°C (25.9°F).
What is the month with the shortest days in Chilliwack?
The month with the shortest days in Chilliwack is December, with an average of 8h and 18min of daylight.
Average temperature
Chilliwack, Canada
The warmest month (with the highest average high temperature) is August (21.9°C).
The month with the lowest average high temperature is December (1.3°C).
The month with the highest average low temperature is August (8.7°C).
The coldest month (with the lowest average low temperature) is December (-3.4°C).
Average pressure
Chilliwack, Canada
- Average pressure in January:
1019.3mbar - Average pressure in February:
1018.4mbar - Average pressure in March:
1016.1mbar - Average pressure in April:
1016.8mbar - Average pressure in May:
1015.8mbar - Average pressure in June:
1015.6mbar
- Average pressure in July:
1016.5mbar - Average pressure in August:
1015.7mbar - Average pressure in September:
1015.9mbar - Average pressure in October:
1017mbar - Average pressure in November:
1017mbar - Average pressure in December:
1019mbar
The month with the highest atmospheric pressure is January (1019.3mbar).
The month with the lowest atmospheric pressure is June (1015.6mbar).
Average wind speed
Chilliwack, Canada
- Average wind speed in January:
6.9km/h - Average wind speed in February:
6.9km/h - Average wind speed in March:
6.6km/h - Average wind speed in April:
6.2km/h - Average wind speed in May:
5.5km/h - Average wind speed in June:
5.4km/h
- Average wind speed in July:
5.4km/h - Average wind speed in August:
5km/h - Average wind speed in September:
5.3km/h - Average wind speed in October:
5.8km/h - Average wind speed in November:
6.5km/h - Average wind speed in December:
6.4km/h
The windiest months (with the highest average wind speed) are January and February (6.9km/h).
The calmest month (with the lowest average wind speed) is August (5km/h).
Average humidity
Chilliwack, Canada
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is July (74%).
Average rainfall
Chilliwack, Canada
- Average rainfall in January:
173mm - Average rainfall in February:
105mm - Average rainfall in March:
140mm - Average rainfall in April:
90mm - Average rainfall in May:
71mm - Average rainfall in June:
62mm
The wettest month (with the highest rainfall) is January (173mm).
The driest month (with the least rainfall) is August (31mm).
Average rainfall days
Chilliwack, Canada
- Average rainfall days in January:
17.8 days - Average rainfall days in February:
15.4 days - Average rainfall days in March:
21.2 days - Average rainfall days in April:
20.5 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
11.3 days - Average rainfall days in August:
10.2 days - Average rainfall days in September:
14.8 days - Average rainfall days in October:
16.1 days - Average rainfall days in November:
19.9 days - Average rainfall days in December:
18 days
The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (10.2 days).
Average snowfall
Chilliwack, Canada
The month with the highest snowfall is February (103mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Chilliwack, Canada
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
5.7 days - Average snowfall days in March:
4.4 days - Average snowfall days in April:
1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
1.3 days - Average snowfall days in December:
3.9 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Chilliwack, Canada
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 1min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 2min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
3h and 4min - Average sunshine in March:
4h and 3min - Average sunshine in April:
6h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
8h and 1min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 1min - Average sunshine in October:
4h and 5min - Average sunshine in November:
3h and 4min - Average sunshine in December:
3h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Chilliwack, Canada
- Average sunshine days in January:
11.2 days - Average sunshine days in February:
9.1 days - Average sunshine days in March:
8 days - Average sunshine days in April:
8 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
17.6 days - Average sunshine days in August:
18.1 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
13.9 days - Average sunshine days in November:
9.2 days - Average sunshine days in December:
10.7 days
The month with the most sunshine days is August (18.1 days).
The months with the least sunshine days are March and April (8 days).
Average UV index
Chilliwack, Canada
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover
Chilliwack, Canada
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility
Chilliwack, Canada
The months with the highest visibility are May, July and August (8km).
The months with the lowest visibility are January, February, March, November and December (6km).
