Climate and monthly weather forecast
Basin, WY

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The climate of Basin

In the heart of Wyoming, USA, sits Basin - a location with a climate dominated by the Köppen classification BWk, a mid-latitude desert. Overall, the climate is characterized by significant temperature variation and relatively low precipitation throughout the year. While daytimes can feel quite warm, by striking contrast, nights often see a substantial drop in temperature.

Looking closely at the climatological parameters, a systematic fluctuation becomes apparent. January and February tend to be the coldest months with high temperatures averaging from 29.7°F (-1.3°C) to 30.2°F (-1°C) and lows steeply falling between 13.8°F (-10.1°C) and 14.4°F (-9.8°C). The heat steadily increases to a peak in July with a summertime zenith of 85.1°F (29.5°C) and a night low of 63.3°F (17.4°C). Humidity ranges from a high of 78% in January to a low of 33% in July and August. The yearly swing in daylight hours oscillates from the winter low of 9.3 hours in January to the summer peak of 15.5 hours in June.

Precipitation in Basin is substantially modest with average rainfall failing to surpass 0.87" (22mm) in any month. Similarly, snowfall is not significant with values ranging from a high of 2.52" (64mm) in February to none from June to September. High incidence of sunshine and low cloud cover percentage underscore Basin's BWk desert climate status.

The best time to visit Basin

While the best time to visit Basin is not set in stone and largely depends on personal preferences, the popular choice leans towards late spring and early summer months. The heat, while present, isn’t overpowering, with May temperatures ranging from an agreeable 64.6°F (18.1°C) to a cool 47.1°F (8.4°C), where bursts of warmth are aided by 14.8 daylight hours. Rainfall remains well below one inch, at about 0.87" (22mm). For those eager to enjoy the best of Basin’s weather with ideal temperatures, considerable daylight and low rainfall, this period offers a pleasant opportunity.

The worst time to visit Basin

Basin’s weather conditions in winter can be challenging for visitors. Extending from December through February, the temperatures drop from 28.8°F (-1.8°C) to 13.8°F (-10.1°C) in January, the coldest month. Expect snow in varying measures, hitting a height in February at 2.52" (64mm). Cold winds grip the town, averaging between 6mph (9.7km/h) and 7.1mph (11.4km/h), making it feel even colder. Substantial daylight is a casualty of the season with just 8.9 hours recorded in December. Winter is an arduous time and unless braving the cold is desirable, it may not be the optimal time for a visit.

Spring weather in Basin

Spring brings a breath of fresh air in Basin. Temperatures climb from an inviting 54.1°F (12.3°C) in April to a comfortable 64.6°F (18.1°C) by May’s end. Although rainfall experiences a slight hike averaging 0.63" (16mm) in April, it still remains relatively low throughout the season, with 12 days in May having some measure of recognizable rainfall. A notable feature is the increasing daylight hours, surging from 13.5 hours in April to an illuminating 14.8 hours by May’s conclusion. The winds stay manageable, averaging 7.8mph (12.6km/h) to 8.3mph (13.4km/h), crafting the spring months into a delightful blend of pleasant temperatures and bountiful daylight.

Summer weather in Basin

Summers in Basin embody the desert climate classification. From June through August, temperature highs are routinely above 76.5°F (24.7°C), peaking at an ardent 85.1°F (29.5°C) in July. Correspondingly, evening temperatures prevail in the comfortable range of 57°F (13.9°C) to 63.3°F (17.4°C). Rainfall is scanty, with an average of 0.67" (17mm) in June to 0.47" (12mm) in July and August. The frequency of rainfall, in line with BWK desert classification, falls to a yearly low at approximately seven days a month. Compounded with the long daylight hours, reaching the zenith in June at 15.5 hours, summers offer ample opportunity for outdoor pursuits.

Autumn weather in Basin

Autumn ushers in mild, agreeable temperatures in Basin. In September, daytime temperatures hover around a comfortable 73.2°F (22.9°C), dipping to a cooler 53.8°F (12.1°C) at night. While the sunshine hours dwindling slightly to 12.5, they remain plentiful to convenience outdoor activities. Winds pick up pace, averaging 6.6mph (10.6km/h), and rainfall slowly inches up to 0.71" (18mm) but is spread out over 6.6 days on average, ensuring a predominantly dry autumn.

Winter weather in Basin

Winter is marked by cold temperatures and a noticeable drop in daylight. December introduces the season with highs averaging 28.8°F (-1.8°C) and lows at a brutal 14.2°F (-9.9°C). The snowfall of 1.3" (33mm) in December and 1.85" (47mm) in January are telltale signs of the chilling winter. An average of 11.9mph (19.2km/h) gusts in December adds to the bite in the air. January pockets the least daylight of the year, averaging 9.3 hours. Despite the chilly conditions, it presents a unique perspective on this mid-latitude desert clime.

Weather in January

With the year's coldest conditions, January in Basin, Wyoming, sees a significant drop in the mercury. With winter in full swing, expect to encounter harsh and potentially frigid conditions. Daylight is rather scarce, reducing outdoor activities due to limited visibility. Weather in January »

Weather in February

In Basin, Wyoming, February signals the continuance of the winter season. This month sees a slight yet gradual increase in temperatures compared to its predecessor, January. An increase in daylight hours slightly alleviates the earlier scarcity of sunlight. Weather in February »

Weather in March

March marks the transitional phase from winter to spring in Basin, Wyoming. Month-on-month, the temperature increases, and daylight hours grow. There's a noticeable reduction in snowfall, replaced by a steady increase in rainfall. The transformation in weather is evident as the landscape begins to thaw and revive. Weather in March »

Weather in April

In April, the town of Basin, Wyoming, enters fully into springtime. The weather conditions are typically milder, with a considerable increase in temperature. There's an abundance of daylight and a corresponding decrease in the relative humidity level. Weather in April »

Weather in May

May in Basin, Wyoming, presents warmer, more pleasant weather conditions. The transition from spring to summer begins, leading to noticeable elevations in temperature. Rainfall continues to outweigh snowfall, yielding a richer and greener landscape across the region. Weather in May »

Weather in June

Arriving in Basin, Wyoming, the month of June brings the onset of summer. Temperatures continue their upward trend supported by ample sunshine and the longest daylight hours of the year. The likelihood of rainfall decreases, while the overall weather is conducive to various outdoor pursuits. Weather in June »

Weather in July

July stands as Basin, Wyoming's hottest month of the year. Summers hit their peak, accompanied by a significant decline in relative humidity levels. Rainfall continues to be on the decline, while daylight hours, though slightly reduced from June, remain ample. Weather in July »

Weather in August

August in Basin, Wyoming, signifies the tail-end of summer. Despite a slight drop in temperature from July, the weather remains hot and relatively dry. The city experiences a reduction in daylight hours while still encountering a fair amount of sunshine. Weather in August »

Weather in September

September ushers in the fall season in Basin, Wyoming, with a discernible decline in temperature. As daylight hours diminish, a correlation with decreased sunshine hours is observed. Weather shifts towards cooler conditions, yet precipitation sees an uptick, with rainfall outpacing the previous month's rates. Weather in September »

Weather in October

October sees a further deepening of autumn in Basin, Wyoming. While temperatures continue their downward trend, the remarkable decrease in daylight hours begins to limit outdoor activities. Rainfall maintains a steady pace, and snowfall begins to make its reappearance into the weather equation. Weather in October »

Weather in November

November brings Basin, Wyoming towards the brink of winter. As temperatures persistently decrease, the occurrence of snowfall becomes more frequent. Daylight hours continue to dwindle, amplifying the arrival of colder months. Increased relative humidity becomes more apparent as the chill in the air continues to intensify. Weather in November »

Weather in December

Wrapping up the year in Basin, Wyoming, December welcomes full-fledged winter conditions. The temperatures maintain their steady decline, resulting in a cold and snowy environment. Further reduction of daylight hours accentuates the winter feel while outdoor activities are left to the mercy of limited light. Weather in December »

Frequently asked questions

What is the most humid month in Basin?

The most humid month is January, with an average relative humidity of 78%.

How much does it rain in Basin?

Throughout the year, in Basin, there are 103.2 rainfall days, and 5.71" (145mm) of precipitation is accumulated.

When does it snow in Basin?

January through May, October through December are months with snowfall.

How many days does it snow in Basin?

Throughout the year, in Basin, Wyoming, there are 41.4 snowfall days, and 9.41" (239mm) of snow is accumulated.

What is the month with the least sunshine in Basin?

The month with the least sunshine is January, with an average of 6.7h of sunshine.

What is the month with the lowest UV index in Basin?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

When does it snow the most in Basin?

February is the month with the most snowfall in Basin. Snow falls for 9.8 days and accumulates 2.52" (64mm) of snow.

When is Daylight Saving Time (DST) in Basin?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Basin, Wyoming, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the wettest month in Basin?

May is the month with the most rainfall in Basin. Rain falls for 12.6 days and accumulates 0.87" (22mm) of precipitation.

When it does not snow in Basin?

In Basin, snow does not fall in June through September.

When are the longest days in Basin?

June has the longest days of the year in Basin, Wyoming, with an average of 15h and 30min of daylight.

What are the months with the most sunshine in Basin?

June through August, with an average of 11.9h of sunshine, are months with the most sunshine in Basin.

What is the month with the highest UV index in Basin?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What month is the hottest in Basin?

The warmest temperatures in Basin occur during July, when averages reach a peak of 85.1°F (29.5°C) and a low of 63.3°F (17.4°C).

What are the least humid months in Basin?

The months with the lowest humidity in Basin, Wyoming, are July and August, with an average relative humidity of 33%.

What time of the year is the coldest in Basin?

Temperature readings in Basin, Wyoming, reach their annual highs in December, averaging 28.8°F (-1.8°C) and a minimum average of 14.2°F (-9.9°C).

What is the driest month in Basin?

December is the month with the least rainfall in Basin. Rain falls for 6.5 days and accumulates 0.2" (5mm) of precipitation.

What is the month with the shortest days in Basin?

December has the shortest days of the year in Basin, with an average of 8h and 54min of daylight.

Average temperature
Basin, WY

Average temperature - Basin, WY

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (28.8°F).

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).

Average pressure
Basin, WY

Average pressure - Basin, WY

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed
Basin, WY

Average wind speed - Basin, WY

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest months (with the lowest average wind speed) are January and August (6mph).

Average humidity
Basin, WY

Average humidity - Basin, WY

The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are July and August (33%).

Average rainfall
Basin, WY

Average rainfall - Basin, WY

The wettest month (with the highest rainfall) is May (0.87").
The driest month (with the least rainfall) is December (0.2").

Average rainfall days
Basin, WY

Average rainfall days - Basin, WY

The month with the highest number of rainy days is May (12.6 days).
The month with the least rainy days is December (6.5 days).

Average snowfall
Basin, WY

Average snowfall - Basin, WY

The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Basin, WY

Average snowfall days - Basin, WY

The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Basin, WY

Average daylight / Average sunshine - Basin, WY

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).

Average sunshine days
Basin, WY

Average sunshine days - Basin, WY

The month with the most sunshine days is December (20.9 days).
The months with the least sunshine days are April and June (12.5 days).

Average UV index
Basin, WY

Average UV index - Basin, WY

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average visibility
Basin, WY

Average visibility - Basin, WY

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).

Basin, Wyoming, USA

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