Climate and monthly weather forecast
Owasso, OK

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The climate of Owasso

Nestled in the heart of Oklahoma, USA, lays the vibrant city of Owasso which is subject to a Humid subtropical climate with no dry season, as per the Köppen climate classification. This prime geographical positioning allows Owasso to experience moderately temperamental weather year-round peppered with variations across numerous meteorological parameters.

Throughout the year, Owasso experiences a range in temperatures from a low of 30.9°F (-0.6°C) in the colder months, to a blistering high of 91.2°F (32.9°C) in peak summer. Humidity remains relatively stable across all twelve months, bound between 67% and 80%. In terms of rainfall, the city receives between 0.87" (22mm) and 3.86" (98mm) per month, with the wettest period occurring in May.

Snowfall is not prominent, with nearly negligible amounts being witnessed only from December to February. Daylight hours extend between 9.7 hours in winter to a peak of 14.6 hours in summer. Wind speeds fluctuate modestly, consistently ranging from 7mph (11.3km/h) to 10.6mph (17.1km/h) across the year, with gusts reaching up to 16.6mph (26.7km/h).

A glance at the climatological data reveals the distinctive absence of a dry season, signifying a Cfa climate zone. Furthermore, the pattern of minimal snowfall yet abundant rainfall is noteworthy, distinguishing Owasso's unique weather conditions.

The best time to visit Owasso

Visitors seeking to bask in mild temperatures while avoiding excessive rainfall should consider touring Owasso between the months of April and June. During this period, daily temperatures tend to oscillate betwixt 61°F (16.1°C) and 76.1°F (24.5°C), providing a balmy backdrop perfect for outdoor exploration. Rainfall averages about 1.65" (42mm) in April, escalating to 3.86" (98mm) by May before tapering in June to 1.54" (39mm), hence ensuring minimal disruptions to one's itinerary.

The worst time to visit Owasso

Planning a trip during the late summer to early autumn, specifically between August and September, might not be advisable. These two months are particularly perilous as they experience temperatures around a high 90.1°F (32.3°C) and 83.5°F (28.6°C), placing them amongst the warmest of the year. Moreover, the city encounters a substantial amount of rainfall of approximately 2.44" (62mm) in August, escalating further in September to 2.36" (60mm) which might hamper outdoor activities.

Spring weather in Owasso

Spring season in Owasso ushers in a transition from comparatively cooler environs to a warmer climate. Specifically, March, April and May see temperatures rise gradually, encompassing a range from 43.9°F (6.6°C) to 76.1°F (24.5°C). As spring progresses, so does rainfall with the quantity intensifying from moderate 1.65" (42mm) in March to a significant 3.86" (98mm) by May. However, wind speeds decelerate around this period, stabilising roughly near 10.6mph (17.1km/h) to 8.9mph (14.3km/h), painting an overall picture of mild breezier days.

Summer weather in Owasso

Summers in Owasso span from June to August, displaying the peak of the city's temperatures. During these months, the heat can surge upwards to a high of 91.2°F (32.9°C); however, the low temperature during the night gives some respite averaging at a comfortable 72.3°F (22.4°C). Despite being a hot season, rain continues relatively unfazed, with the city receiving 2.05" (52mm) and 2.44" (62mm) in July and August respectively, serving a recurrent reminder of the humid subtropical classification of Owasso's Climate.

Autumn weather in Owasso

The Autumn season (September - November) witnesses a gradual downturn in temperature from 70.3°F (21.3°C) to 58.8°F (14.9°C). This period still encounters a substantial level of rainfall of approximately 2.36" (60mm) in September, gradually reducing to 0.87" (22mm) by November. Thus, while cooler temperatures mark the onset of autumn, the rain-laden clouds hold ground a while longer.

Winter weather in Owasso

Winter in Owasso is typically characterized by a steady drop of temperature, starting from 48°F (8.9°C) in December, reaching the year's lowest of 30.9°F (-0.6°C) in January. Despite being the coldest season, the city hardly experiences any snowfall, with an almost negligible observation of 0.55" (14mm) in December. In contrast to this, rainfall continues unabated adding 1.02" (26mm) to the annual precipitation. Hence, the winter season's unique signature is the presence of cold rain instead of the conventional snowfall.

Weather in January

January in Owasso, Oklahoma, embarks on the year with a somewhat frigid climate as the temperature plummets to a low average of 30.9°F (-0.6°C). Compared to the climate of December, the weather is relatively similar with a drop in temperature. Weather in January »

Weather in February

Owasso, Oklahoma, experiences a slight increase in average temperatures during February, with the average high temperature topping at 49.6°F (9.8°C). The weather is still quite chilly requiring bundled clothing to combat the cool conditions. Weather in February »

Weather in March

Weather during March in Owasso, Oklahoma, sees a definitive shift from the wintry conditions of February. The budding arrival of spring is observed with temperature highs reaching 61°F (16.1°C). Observations show a considerable decline in snowfall, while daylight hours continue to increase. Weather in March »

Weather in April

Spring continues to take a firm grip on Owasso, Oklahoma in April, as temperature readings rise from those experienced in March. However, the weather comes with a notable twist on the precipitation side, rainfall spiking to a year's high of 1.89" (48mm). Weather in April »

Weather in May

May in Owasso, Oklahoma, symbolizes the year's fully-fledged spring where flirting with summer temperatures is noticeable. The weather gets noticeably warmer and sunnier compared to April. The month records maximum daylight hours alongside sun-soaked days, which are perfect for outdoor activities. Weather in May »

Weather in June

June is expectedly hotter than May in Owasso, Oklahoma, signaling the beginning of the summer season. Paradoxically, the humidity levels drop to 75% from the 80% recorded in May. The prolonged daylight hours facilitate a host of outdoor activities and picnics. Weather in June »

Weather in July

Temperature extremes are prevalent in July in Owasso, Oklahoma, soaring to an average high of 91.2°F (32.9°C). Outdoor activities become less desired due to the unbearable heat. An increase in rainfall activity is also witnessed, as expected for a typical summer. Weather in July »

Weather in August

Weather in August in Owasso, Oklahoma, is marked by high summer temperatures that slightly drop from what has been experienced in July. The city is saturated with intense heat. Closure of the summer season sees locals geared to combat extreme heat. Weather in August »

Weather in September

September's weather in Owasso, Oklahoma, marks the commencement of the fall season, with the weather becoming bearable as the highest temperature drops to 83.5°F (28.6°C). The transition from the summer heat of August is quite noticeable. Weather in September »

Weather in October

October in Owasso, Oklahoma, amplifies the fall season with a further reduction in temperatures. The weather change is prominent from that experienced in September. The foliage displays beautiful fall colors, attracting visitors to the city's public parks. Weather in October »

Weather in November

The last month of the autumn, November, is mild month in Owasso, Oklahoma, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 58.8°F (14.9°C). November shows a mild decline in the average high-temperature, falling from October's pleasant 70.3°F (21.3°C) to a refreshing 58.8°F (14.9°C). Weather in November »

Weather in December

In December, Owasso, Oklahoma, welcomes winter with an average high temperature of 48°F (8.9°C) and a slight snowfall of 0.16" (4mm). The chilly weather of November remains stagnant with a slight drop in temperature. Warm clothing becomes indispensable. Weather in December »

Frequently asked questions

What time of the year is the coldest?

January is the coldest month in Owasso, with an average high-temperature of 46.2°F (7.9°C) and an average low-temperature of 30.9°F (-0.6°C).

How many days does it rain?

In Owasso, Oklahoma, during the entire year, the rain falls for 126.3 days and collects up to 21.46" (545mm) of precipitation.

When does it snow?

Months with snowfall are January through March, November and December.

How much does it snow?

Throughout the year, there are 6.7 snowfall days, and 1.54" (39mm) of snow is accumulated.

What is the driest month?

February and November are months with the least rain when the rain falls for 7.3 days and typically aggregates up to 0.87" (22mm) of rain.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 2.4 days and typically aggregates up to 0.67" (17mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

When it does not snow?

April through October are months without snowfall in Owasso.

What is the most humid month?

With an average relative humidity of 80%, May is the most humid month.

What is the wettest month in Owasso?

May is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.86" (98mm) of precipitation.

When are the longest days?

June has the longest days of the year, with an average of 14h and 36min of daylight.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What time of the year is the hottest?

In Owasso, July registers the highest temperatures, averaging 91.2°F (32.9°C) at the peak and 72.3°F (22.4°C) at the lowest.

What is the month with the most sunshine?

July and August, with an average of 10.9h of sunshine, are months with the most sunshine.

What are the least humid months?

The months with the lowest humidity are August and October, with an average relative humidity of 67%.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

What is the month with the least sunshine?

With an average of 5.6h of sunshine, December has the least sunshine of the year.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 2.

Average temperature
Owasso, OK

Average temperature - Owasso, OK

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (46.2°F).

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure
Owasso, OK

Average pressure - Owasso, OK

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Owasso, OK

Average wind speed - Owasso, OK

The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity
Owasso, OK

Average humidity - Owasso, OK

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are August and October (67%).

Average rainfall
Owasso, OK

Average rainfall - Owasso, OK

The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are February and November (0.87").

Average rainfall days
Owasso, OK

Average rainfall days - Owasso, OK

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.2 days).

Average snowfall
Owasso, OK

Average snowfall - Owasso, OK

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Owasso, OK

Average snowfall days - Owasso, OK

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Owasso, OK

Average daylight / Average sunshine - Owasso, OK

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days
Owasso, OK

Average sunshine days - Owasso, OK

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (13.5 days).

Average visibility
Owasso, OK

Average visibility - Owasso, OK

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Owasso, Oklahoma, USA

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