Climate and monthly weather forecast
Douglas, WY

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The climate of Douglas

Within the parameters of the Köppen climate system, Douglas, Wyoming, adopts a BSk climate classification, pointing towards a Mid-latitude steppe. Essentially characterized by a semi-arid climate, location pivots towards the cooler range of this climate group, due in part to the city's elevation and geographical position inland.

Throughout the span of a typical year, temperature fluctuations in Douglas exhibit a clear line of demarcation between periods of relative warmth and the cold spells synonymous with winters. Months from November to February have lower temperatures with average highs fluctuating from 31.3°F (-0.4°C) to 45.5°F (7.5°C), while the time frame from June to September brings a bit more warmth with average highs ranging from 73.6°F (23.1°C) to 83.8°F (28.8°C).

The city receives an average annual precipitation of 1.02" (26mm), with the monthly rainfall amounts escalating substantially from April to May before receding gradually to less than an inch by August. On average, the metropolis experiences 7.3 rainy days per month, culminating in a peak in May with 15.2 days of rainfall. Meanwhile, the snowfall is largely confined to the winter months with significant snowfall recorded from December to April.

The best time to visit Douglas

A common consensus among weather enthusiasts and tourists alike sheds light on the months from June to August as the most conducive for a visit to Douglas. During this period, the city basks in the warmth of average highs oscillating between 73.6°F (23.1°C) and 83.8°F (28.8°C), presenting an ideal ambience for outdoor activities and sightseeing. Moreover, these months also coincide with the longest daylight hours, clocking between 13.9 and 15.3 hours daily, ensuring ample daylight to make the most of an excursion.

The worst time to visit Douglas

On the contrary, the period from November through February is generally considered unfavorable for any tourism-related activities. These are the coldest months with average high temperatures dipping as low as 31.3°F (-0.4°C) to 45.5°F (7.5°C). In addition to the lower temperatures, hefty snowfall is also common during these months, with an average of 4.3" (109mm) to 5.59" (142mm) of snowfall. The downside of visiting this period is compounded by fewer daylight hours - ranging from 9.1 to 10.6 hours daily.

Spring weather in Douglas

Spring transitions Douglas out of the grip of winter with temperatures steadily picking up from March to May. Throughout these months, the average high temperature escalates from 52°F (11.1°C) to 62.1°F (16.7°C). This quarter is marked by an excessive amount of rainfall, with averages per month hovering between 1.26" (32mm) to 2.28" (58mm). The spring season also sees a dramatic reduction in snowfall from an average of 5.59" (142mm) in March to zero by May.

Summer weather in Douglas

Largely characterized by warm temperatures, summer ushers in an inviting atmosphere in Douglas from June to August. Average high temperatures fluctuate from 73.6°F (23.1°C) to 83.8°F (28.8°C), providing ideal weather for visitors. In comparison to spring, these months represent a period of reduced precipitation with averages retreating to figures fluctuating from 0.51" (13mm) to 1.26" (32mm).

Autumn weather in Douglas

The onset of autumn between September and November drives a pronounced decrease in temperatures, introducing a cool and pleasant climate. With average highs ranging from 43.3°F (6.3°C) to 73.6°F (23.1°C), rainfall continues its downward trend from summer, stabilizing at 0.83" (21mm) to 0.87" (22mm). Inversely, snowfall makes a reappearance in the latter part of November.

Winter weather in Douglas

Winter means a significant downturn in temperatures, dropping to average highs fluctuating from 31.3°F (-0.4°C) to 45.5°F (7.5°C) between December and February. These months also experience a substantial increase in snowfall with averages rising from 4.21" (107mm) to 5.59" (142mm), therefore equating to a transformation of the city into a winter wonderland for those fond of snow-laden landscapes. The days also become noticeably shorter in winter, with daylight lasting for approximately 9.1 to 10.6 hours.

Weather in January

January in Douglas, Wyoming, experiences a low-lying duel between freezing temperature and moderate humidity. The terrain is typically garlanded with a snowy blanket, accumulating up to 3.82" (97mm). The ethereal white beauty is kept company by a brief day length and intermittent sunlight. Weather in January »

Weather in February

As winter persists in February, the mercury dips slightly below January's range, while snowfall inches up to culminate at 5.47" (139mm). This month is known for its extended snowfall days, limited sunshine, and an uptick in humidity. Weather in February »

Weather in March

The arrival of March signals the transition from winter to spring, with a substantial rise in temperature and a decrease in snowfall down to 4.65" (118mm). The increased daylight hours begin to melt away the winter blues. March's weather story in Douglas is all about renewal - longer days, less snow, and warming temperatures. An upsurge in temperatures occurs in Douglas as February gives way to March, with average highs shifting from an icy 32.9°F (0.5°C) to a chilly 45.5°F (7.5°C). Weather in March »

Weather in April

The increasingly mild clime of Douglas, Wyoming, continues its march into April. The land, doused in 1.85" (47mm) of rainfall, takes on a vibrant hue. Relative humidity drops slightly, adding comfort to the warmer days. The growing number of sunshine hours further announces the advent of spring. With the transition into April, Douglas experiences a subtle uplift in average high-temperatures, adjusting from a chilly 45.5°F (7.5°C) in March to a cool 52°F (11.1°C). Weather in April »

Weather in May

Come May, Douglas witnesses a perceptible shift in weather. Witnessing an accumulation of 2.28" (58mm) in rainfall, it's the wettest month of the year. Yet, the daily weather is springlike and inviting. Long daylight hours and a high UV index urge residents and visitors alike to keep the sunscreen handy. With the onset of May, Douglas's weather sees a temperature rise, transitioning from a cool 52°F (11.1°C) in April to a refreshing 62.1°F (16.7°C). Weather in May »

Weather in June

In June, Douglas, Wyoming, celebrates the onset of summer. The temperature peaks, and rainfall tally declines to 1.26" (32mm), ushering in a dry spell. The lengthened days are washed in a flood of daylight, and the UV index ties level with May. Weather in June »

Weather in July

July in Douglas experiences the highest of the high temperatures, a wheeze of dryness leaves the rainfall at a mere 0.63" (16mm). The weather is characterized by long daylight hours and dwindling cloud percentages. The receding wind speeds add to the sweltering summer appeal, making the warmest month in Douglas one to remember. July, recording an average high temperature of 83.8°F (28.8°C) and a low temperature of 61.3°F (16.3°C), is Douglas's warmest month. July's mean heat index is computed to be 84.2°F (29°C). Weather in July »

Weather in August

August in Douglas, Wyoming, holds on to the high temperature of July. Although the rainfall increases slightly to 0.51" (13mm), the overall climate remains dry. The daylight hours decrease slightly, hinting at the summer's eventual farewell. Weather in August »

Weather in September

As September ushers in the fall season in Douglas, the temperature slides down, and the rainfall inches down to 0.43" (11mm), marking its driest month. The daylight hours progressively decrease, heralding the upcoming winter. Weather in September »

Weather in October

Douglas, Wyoming, receives a modest rainfall of 0.87" (22mm) in October. The mercury drops, hitting colder temperatures as the fall season matures. Shorter daylight hours, coupled with fewer sunshine hours, signify a retreat indoors. Weather in October »

Weather in November

November embraces the cold transition with a further drop in temperature and an accelerated snowfall of 4.45" (113mm). The dwindling daylight hours and limited sunshine make way for chillier days. While those in Douglas, Wyoming, bundle up against the wind, the drop in UV index protects against the harmful effects of the sun. November's onset in Douglas, Wyoming, brings a reduction in the average high-temperature, from a refreshing 55.8°F (13.2°C) in October to a chilly 43.3°F (6.3°C). Weather in November »

Weather in December

Douglas, Wyoming, welcomes winter in December with the lowest temperature and highest snowfall, clocking in at 4.21" (107mm). The reduced daylight and limited sunshine hours don't deter from the charm of a white winter. The brisk winds remind everyone that the year is winding to a close in an atmosphere of chill and celebration. December, with average temperatures reaching a high of 31.3°F (-0.4°C) and a low of 18.1°F (-7.7°C), is the coldest month in Douglas. Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How many days does it rain in Douglas?

Throughout the year, in Douglas, Wyoming, there are 93.9 rainfall days, and 12.09" (307mm) of precipitation is accumulated.

When does it snow in Douglas?

Months with snowfall are January through May, September through December.

How many days does it snow in Douglas?

In Douglas, Wyoming, during the entire year, snow falls for 60.9 days and aggregates up to 34.21" (869mm) of snow.

When is the lowest UV index in Douglas?

January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Douglas.

What is the most humid month in Douglas?

The most humid month in Douglas is February, with an average relative humidity of 73%.

What is the month with the least sunshine in Douglas?

The month with the least sunshine is February, with an average of 6.3h of sunshine.

When is Daylight Saving Time (DST) in Douglas?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.

When does it snow the most in Douglas?

April is the month with the most snowfall. Snow falls for 6.4 days and accumulates 5.59" (142mm) of snow.

What is the rainiest month in Douglas?

The month with the most rainfall is May, when the rain falls for 15.2 days and typically aggregates up to 2.28" (58mm) of precipitation.

When it does not snow in Douglas?

June through August are months without snowfall.

When are the longest days in Douglas?

June has the longest days of the year in Douglas, with an average of 15h and 18min of daylight.

What is the warmest month in Douglas?

In Douglas, July registers the highest temperatures, averaging 83.8°F (28.8°C) at the peak and 61.3°F (16.3°C) at the lowest.

What month has the most sunshine in Douglas?

The month with the most sunshine in Douglas is July, with an average of 12h of sunshine.

What are the months with the highest UV index in Douglas?

July and August, with an average maximum UV index of 6, are months with the highest UV index in Douglas.

What is the least humid month in Douglas?

August is the least humid month, with an average relative humidity of 40%.

What is the driest month in Douglas?

September is the month with the least rainfall in Douglas. Rain falls for 6.8 days and accumulates 0.43" (11mm) of precipitation.

What time of the year is the coldest in Douglas?

December, with average temperatures reaching a high of 31.3°F (-0.4°C) and a low of 18.1°F (-7.7°C), is the coldest month.

What is the month with the shortest days in Douglas?

December has the shortest days of the year in Douglas, with an average of 9h and 6min of daylight.

Average temperature
Douglas, WY

Average temperature - Douglas, WY

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (31.3°F).

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).

Average pressure
Douglas, WY

Average pressure - Douglas, WY

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed
Douglas, WY

Average wind speed - Douglas, WY

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

Average humidity
Douglas, WY

Average humidity - Douglas, WY

The month with the highest relative humidity is February (73%).
The month with the lowest relative humidity is August (40%).

Average rainfall
Douglas, WY

Average rainfall - Douglas, WY

The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days
Douglas, WY

Average rainfall days - Douglas, WY

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.3 days).

Average snowfall
Douglas, WY

Average snowfall - Douglas, WY

The month with the highest snowfall is April (5.59").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Douglas, WY

Average snowfall days - Douglas, WY

The month with the highest number of snowfall days is February (12.2 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Douglas, WY

Average daylight / Average sunshine - Douglas, WY

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

Average sunshine days
Douglas, WY

Average sunshine days - Douglas, WY

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is April (11.3 days).

Average UV index
Douglas, WY

Average UV index - Douglas, WY

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

Average visibility
Douglas, WY

Average visibility - Douglas, 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).

Douglas, Wyoming, USA

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