Climate and monthly weather forecastDevils Tower, WY
Climate and monthly weather forecast
The climate of Devils Tower
Nestled in the state of Wyoming, USA, Devils Tower experiences a Mid-latitude steppe climate, classified as BSk according to Köppen climate categorization. Falling within this category indicates semi-arid conditions, signifying low rainfall, sunny skies, and clear nights, which is strongly reflected in the climatic patterns observed through the year.Temperatures range notably throughout the year for Devils Tower, from harshly cold days with lows of 16.2°F (-8.8°C) in February to warmer summer months where the thermometer may rise to 83.8°F (28.8°C) in July. As expected, temperature lows are typically observed in the winter, while highs coincide with the summer period. A shift in relative humidity levels from 79% in January to about 49% from August to September often accompanies these temperature changes, adding another layer of climatic diversity to this region.
Rainfall trends in Devils Tower are not uniform across the year. Precipitation peaks in May with 2.32" (59mm) and plateaus in summer before gradually receding to 0.71" (18mm) in December. The number of rainfall days also witnesses a steep spike from 2.9 days in February to 15.6 days in May, with a notable decline during the tail end of the year.
Distinct patterns are also noticeable in snowfall data, which reflects the influence of the season. While snowfall reaches a maximum of 7.36" (187mm) in April, it virtually vanishes from June to August. The snowfall days also maximize in winter and almost disappear in summer.
The best time to visit Devils Tower
July and August, the warmest months with temperature highs of 83.8°F (28.8°C) and 81.9°F (27.7°C), respectively, are often considered the best times to plan a visit to Devils Tower. The relative humidity drops significantly during these months reaching 51% in July and 49% in August, offering relatively dry weather conditions. Additionally, sunlight exposure is at peak, with daylight hours reaching a fantastic length of 15.2 hours and 14 hours respectively, and about an impressive 11.6 hours and 11.7 hours of sunshine during these months.The worst time to visit Devils Tower
Given the harsh weather conditions, January and February are generally advised against for travel plans. The temperature typically drops to lows of 18.5°F (-7.5°C) and 16.2°F (-8.8°C) during these months. Combined with the peak relative humidity of around 79% and 78%, respectively, the weather can feel significantly more bitter. Also, these months receive the shortest daylight hours, with only about 9.3 and 10.5 hours of daylight.Spring weather in Devils Tower
Spring at Devils Tower features a noticeable transition in climatic conditions. March starts off with 44.1°F (6.7°C) temperature high and 27.5°F (-2.5°C) lows but becomes warmer in the season with May experiencing a high of 61.9°F (16.6°C) and low of 43.2°F (6.2°C). Rain becomes more frequent with spring, escalating from 1.18" (30mm) in March to 2.32" (59mm) in May. The average daylight hours also increase from 12 hours to 14.8 hours, offering more opportunities for outdoor activities.Summer weather in Devils Tower
During the summer months, Devils Tower experiences the warmest weather. Temperatures move around a comfortable spectrum with highs from 74.8°F (23.8°C) in June scaling to 83.8°F (28.8°C) in July and then slightly dropping to 81.9°F (27.7°C) in August, allowing for pleasant outdoor activities. There is a decrease in rainfall, from 1.81" (46mm) in June to 1.54" (39mm) in August, and humidity levels are lower, further enhancing the appeal of this period.Autumn weather in Devils Tower
Autumn witnesses a gradual decline in temperature, from a high of 72.9°F (22.7°C) in September to a considerably cooler 43.5°F (6.4°C) in November. The rainfall undergoes a gradual fluctuation with an increase from 0.91" (23mm) in September to peak at 1.46 inch in October, then falls to 0.75 inch in November. Autumn also announces the advent of the snow season with 0.43" (11mm) of snowfall observed in September growing to 4.13" (105mm) in November.Winter weather in Devils Tower
Devils Tower experiences quite cold and windy winters. December sees the mercury drop to a low of 18.5°F (-7.5°C), and daily highs register a chilly 30.9°F (-0.6°C). As winter progresses, the temperature falls even lower, with January witnessing 18.5°F (-7.5°C) low and 31.5°F (-0.3°C) high, while February gets colder still with 16.2°F (-8.8°C) as low and 31.1°F (-0.5°C) as the high. With snowfall in the range from 4.09" (104mm) in December to 5.04" (128mm) in February, winter transforms Devils Tower into a cold wintry wonderland.Weather in January
January, nestled in the heart of winter in Devils Tower, Wyoming, USA, brings about icy temperatures and a flurry of snowfall. Following December, there's a slight increase in temperature, but still, the cold embraces the city in sub-freezing temperatures. Weather in January »Weather in February
As Devils Tower transitions from January to February, cold weather and snowy landscapes continue to dominate the scene. Despite the increase in snowfall to 5.04" (128mm), the month offers a slight uptick in daylight hours, breathing a bit of warmth onto the frost-laden city. Weather in February »Weather in March
March exhibits a noticeable transition in weather conditions in Devils Tower as winter ebbs away to give rise to spring. As compared to February, there's a significant decrease in snowfall, down to 5.24" (133mm), signaling the retreating cold. Weather in March »Weather in April
April marks the onset of consistent spring weather in Devils Tower. Shifting from wintry March, changes in weather parameters become conspicuous, thus stepping away from cold winds and snow showers of the previous months. Aggravating rainfall numbers, peaking at 2.01" (51mm), denote an increase in rain showers, replacing the former winter snowfall. Weather in April »Weather in May
May in Devils Tower presents a pleasant change as spring proceeds towards summer. Seasonal transition from the rainy April to warmer weather becomes more prominent, with an increase in maximum temperatures and consistent showers. The climb of rainfall to 2.32" (59mm) fuels the thriving flora, painting the county in vibrant hues of green. Weather in May »Weather in June
June introduces the early signs of summer in Devils Tower, Wyoming, USA, as milder spring weather fades away. Following May, noted changes in weather conditions sweep the county, keeping the rain showers steady and increasing temperatures. Weather in June »Weather in July
July stands as the warmest month in Devils Tower, portraying a typical summer month with extended daylight and high temperatures. This summer peak, seen after June, creates the perfect setting for outdoor explorations and activities. Weather in July »Weather in August
Despite retaining July's high temperatures, August in Devils Tower begins to hint at the approaching end of summer. A slight dip in temperature sets a gradual transition towards the cooler months of the year. Even though the county encounters a marginal decrease in rainfall, down to 1.54" (39mm), the weather stays pleasant for outdoor activities. Weather in August »Weather in September
As summer retreats, September in Devils Tower dawns with the onset of mild autumn. Following the more heated August, a noticeable descent in temperatures paints a picture of colder nights and fresher days. A steep drop in rainfall levels to 0.91" (23mm) marks the driest month of the year, keeping the skies predominantly clear and blue. Weather in September »Weather in October
October invites the full throttle of autumn season in Devils Tower, Wyoming, USA, with a significant decrease in temperature following September. The shift from milder autumn to the pre-winter chill sets the occasional cold wind lifting colorful leaves off trees. Weather in October »Weather in November
The last month of the autumn, November, is chilly month in Devils Tower, Wyoming, with an average temperature ranging between min 28.2°F (-2.1°C) and max 43.5°F (6.4°C). The arrival of November signals a shift in temperature, down from a fresh 54.5°F (12.5°C) in October to a frosty 43.5°F (6.4°C). Weather in November »Weather in December
December brings in the wintry charm to Devils Tower, as snow falls and temperatures plunge steadily. Continuation from November's dipping temperatures opens up a snowy panorama, with a further increase in snowfall up to 4.09" (104mm). Weather in December »Updated: Aug 25, 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
January is the most humid month, with an average relative humidity of 79%.
January is the month with the least rainfall. Rain falls for 3 days and accumulates 0.59" (15mm) of precipitation.
Throughout the year, in Devils Tower, there are 99.6 rainfall days, and 15.71" (399mm) of precipitation is accumulated.
Months with snowfall are January through May, September through December.
In Devils Tower, during the entire year, snow falls for 57 days and aggregates up to 36.46" (926mm) of snow.
The months with the lowest UV index are January, February, April, November and December, with an average maximum UV index of 2.
February and December, with an average of 5.7h of sunshine, are months with the least sunshine.
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.
April is the month with the most snowfall in Devils Tower. Snow falls for 6 days and accumulates 7.36" (187mm) of snow.
May is the month with the most rainfall. Rain falls for 15.6 days and accumulates 2.32" (59mm) of precipitation.
In Devils Tower, snow does not fall in June through August.
The month with the longest days is June, with an average of 15h and 30min of daylight.
July, characterized by an average high temperature of 83.8°F (28.8°C) and a low temperature of 61°F (16.1°C), is generally the warmest month.
July is the month with the highest UV index in Devils Tower, with an average maximum UV index of 6.
August and September, with an average relative humidity of 49%, are the least humid months.
With an average of 11.7h of sunshine, August has the most sunshine of the year in Devils Tower.
In Devils Tower, December is the coldest month, with temperatures averaging a high of 30.9°F (-0.6°C) and a low of 18.5°F (-7.5°C).
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Devils Tower, 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 (30.9°F).
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure
Devils Tower, WY
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.89"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Devils Tower, WY
- Average wind speed in January:
10.2mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
8mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.1mph - Average wind speed in November:
9.7mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (8mph).
Average humidity
Devils Tower, WY
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are August and September (49%).
Average rainfall
Devils Tower, WY
- Average rainfall in January:
0.59" - Average rainfall in February:
0.75" - Average rainfall in March:
1.18" - Average rainfall in April:
2.01" - Average rainfall in May:
2.32" - Average rainfall in June:
1.81"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.54" - Average rainfall in September:
0.91" - Average rainfall in October:
1.46" - Average rainfall in November:
0.75" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days
Devils Tower, WY
- Average rainfall days in January:
3 days - Average rainfall days in February:
2.9 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
12.1 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
11.3 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
7.6 days - Average rainfall days in October:
8.1 days - Average rainfall days in November:
3.5 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.9 days).
Average snowfall
Devils Tower, WY
- Average snowfall in January:
3.31" - Average snowfall in February:
5.04" - Average snowfall in March:
5.24" - Average snowfall in April:
7.36" - Average snowfall in May:
2.64" - Average snowfall in June:
0"
The month with the highest snowfall is April (7.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Devils Tower, WY
- Average snowfall days in January:
9.7 days - Average snowfall days in February:
11.2 days - Average snowfall days in March:
8 days - Average snowfall days in April:
6 days - Average snowfall days in May:
2.2 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:
0.2 days - Average snowfall days in October:
4.2 days - Average snowfall days in November:
6.5 days - Average snowfall days in December:
9 days
The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Devils Tower, WY
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
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).
- Average sunshine in January:
5h and 48min - Average sunshine in February:
5h and 42min - Average sunshine in March:
7h and 30min - Average sunshine in April:
9h and 6min - Average sunshine in May:
10h and 0min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 24min - Average sunshine in October:
6h and 54min - Average sunshine in November:
6h and 18min - Average sunshine in December:
5h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 5h and 42min).
Average sunshine days
Devils Tower, WY
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
17.4 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.7 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
20.3 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
19.9 days
The months with the most sunshine days are September and November (20.3 days).
The month with the least sunshine days is May (12.7 days).
Average UV index
Devils Tower, WY
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).
Average cloud cover
Devils Tower, WY
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility
Devils Tower, 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).
