Climate and monthly weather forecastPowell, WY
Climate and monthly weather forecast
The climate of Powell
Located in the state of Wyoming, USA, the city of Powell is situated well within a climate zone described by Köppen climate classification as BSk, an indicator of Mid-latitude steppe climate. This classification reveals that Powell typically experiences semi-arid conditions with a significant temperature range within 24 hours and throughout the year.The city endures a moderately wide range of temperatures, from cold winters to warm summers. Winter temperatures can fall as low as 15.6°F (-9.1°C) in December while summer temperatures peak at around 83.8°F (28.8°C) in July. Humidity levels also vary widely from 37% in July and August to 76% in January.
Rainfall in Powell is a regular feature with monthly averages ranging from 0.31" (8mm) in January to 1.5" (38mm) in May. In terms of occurrence, rain pelts down between 5.5 and 15.4 days in a month, with the highest number of rainy days in May. Snowfall is also an expected event. It can get quite heavy in February with 3.9" (99mm) of snow, reducing to practically non-existent by July.
Course of other weather elements through the year is also worth noting. The city gets in general 6 hours of sunshine even in winters, which extends to 12 hours in the summer months. UV index, a measure of the strength of sun’s harmful UV rays, stays moderate, varying between 2 and 6. Cloud coverage ranges from a year-low of about 13% in July to a peak of 32% in February while wind speeds vary from 6.2mph (10km/h) in August to 8.3mph (13.4km/h) in April.
The best time to visit Powell
Aiming to encounter the most pleasant weather draws the conclusion that late spring to early autumn stands as the optimal period to visit Powell. Specifically, May through September offers mild temperature ranges between 52.3°F (11.3°C) to 83.8°F (28.8°C). These months yield an extended daylight period of above 14 hours with ample sunshine time, averaging from 11.1 to 12 hours a day, ensuring outdoor activities can be undertaken with ease. Rainfall during this phase is a companion, although months of June and July see a mild decline in the amount.The worst time to visit Powell
Winter, extending from December to February, asks to consider before planning a trip to Powell, specifically for those faint-hearted towards cold. With temperatures hovering well below freezing, from 15.6°F (-9.1°C) to 31.3°F (-0.4°C), along with the fact that December and January lay down the shortest daylight periods and sunshine hours, this may not be an alluring period for faint hearts towards the cold. Significant snowfall up to 3.9" (99mm) and 9.3 snowfall days in several months add another layer of extremity.Spring weather in Powell
Springtime in Powell, extending from March to May, stands as a transition phase from the harsh winter to a warm summer. The temperature steadily ascends, beginning at 43.9°F (6.6°C) in March and ending at a comfortable 62.8°F (17.1°C) in May. The month of May experiences the maximum rainfall of 1.5" (38mm) over 15.4 days, concomitant with spring growth. Expect increasing daylight hours and sunshine to accompany the warming trend with 14.8 sunshine hours in May.Summer weather in Powell
Summer in Powell, which begins in June and ends in August, is relatively warm and comfortable. Temperatures rise gradually from 75°F (23.9°C) in June and reach their pinnacle at 83.8°F (28.8°C) in July. Rainfall decreases with the onset of summer, reaching a year low of 0.5" (13mm) in July. An abundance of sunshine, stretching from 12 to 15.5 daylight hours, allows ample opportunities for outdoor activities.Autumn weather in Powell
Autumn weather in Powell, marking from September to November, witnesses a steady downfall in temperatures, dropping from a warm 72.1°F (22.3°C) in September to 41°F (5°C) in November. Rainfall somewhat increases, with October experiencing 0.63" (16mm) over 9.3 days. Even as daylight and sunshine hours reduce, they still stay at a healthy number of above 9 and 6 respectively.Winter weather in Powell
Winter in Powell runs from December to February. Winter season paints Powell with an average temperature from 15.6°F (-9.1°C) to 31.3°F (-0.4°C), ensuring sessions of thick layering and indoor coziness. Snow marks the winter landscape, reaching up to 3.9" (99mm) in February, making it appear like a winter wonderland. Consequently, the daylight hours reduce to a minimum of 8.9 hours in December, thereby making daylight a precious entity.Weather in January
January in Powell, Wyoming, exhibits a true winter weather with all the accompanying features. High levels of snowfall, a prominent feature of this month, see values reaching up to 2.05" (52mm). In comparison to the outgoing December, January also introduces a denser cloud cover reflecting a seasonal transition. Weather in January »Weather in February
February does hold on to the winter's chills, yet some transitioning can be sensed as it prepares to precede the spring season. The snowfall this month goes up to a notable amount of 3.9" (99mm). Shifts in the weather between February and March sharp contrasts, with the former being noticeably colder and more covered in snow. Weather in February »Weather in March
With March, the bounds of spring find a more firm ground in Powell, Wyoming, making it a month of significant seasonal transition. Making this transition evident, snowfall figures fall to 1.77" (45mm), marking a noticeable trim from February's extensive snow cover. Weather in March »Weather in April
April's characteristic spring weather offers a much-needed respite from the winter chills in Powell, Wyoming. However, the driving feature of this month is the quantity of rainfall, peaking at 0.94" (24mm). In May, residents will experience a notable increase in temperature compared to the mild conditions of April. Weather in April »Weather in May
The final touches of spring in May set the perfect prelude to the incumbent summer season in Powell, Wyoming. Notably, May is marked by its high of 1.5" (38mm) of rainfall. The transition into June ushers in warmer weather and longer days, stimulating more outdoor ventures. Weather in May »Weather in June
June embodies the arrival of summer in Powell, Wyoming, showing off clear skies, warmer temperatures, and longer days. A substantial declination of rainfall, amounting to 0.91" (23mm), marks the onset of summer. As July rolls in, it amplifies June's warm streak, promising even warmer days and incredibly mild nights. Weather in June »Weather in July
July stands out in Powell, Wyoming, as the crux of the summer season, showcasing ideal summer-like conditions.In stark terms, July receives barely 0.59" (15mm) of precipitation, affirming the drying trend. Akin to August, July brings along abundant sunshine, hot afternoons, and mild nights. Weather in July »Weather in August
August in Powell, Wyoming, holds on to the summer vibes, even though it is preparing to give its reign over to the ensuing fall season. Here, the summer's classic imprint of low precipitation continues, hardly measuring up to reach 0.63" (16mm). Weather in August »Weather in September
September signifies the initiation of fall season in Powell, Wyoming, with revealing signs such as cooler nights and leaves changing colors. The switch to autumnal conditions is brought into sharp focus by the rainfall figures, amounting to 0.71" (18mm). Weather in September »Weather in October
As the heart of fall, October in Powell, Wyoming, embraces the transitional phase towards the colder winter months. The temperature decline is subjected to a sharp acceleration, as the month receives snowfall measuring up to 1.02" (26mm). Weather in October »Weather in November
November embodies the entry point of winter in Powell, Wyoming, as temperatures plunge and snowfall starts to cover the landscape. Speaking to this transition, snowfall reaches a substantial 2.24" (57mm) in measurement. Priming for December adjusts the body clock to much shorter days, biting chill, and heightened possibilities of snow showers. Weather in November »Weather in December
December in Powell, Wyoming, encapsulates the essence of a complete winter season with short days, a distinct chill in the air, and a beautiful snowy landscape. Solidifying the winter signature, the month experiences accumulating snowfall with values up to 2.01" (51mm). Weather in December »Updated: Feb 14, 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
With an average relative humidity of 76%, January is the most humid month in Powell, Wyoming.
The month with the least rainfall in Powell is January, when the rain falls for 5.8 days and typically collects 0.31" (8mm) of precipitation.
In Powell, during the entire year, the rain falls for 105.7 days and collects up to 8.19" (208mm) of precipitation.
Months with snowfall are January through June, September through December.
Throughout the year, there are 52.1 snowfall days, and 16.97" (431mm) of snow is accumulated.
The months with the least sunshine are January, February and December, with an average of 6.7h of sunshine.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Powell, Wyoming.
The month with the most snowfall is February, when snow falls for 11 days and typically aggregates up to 3.9" (99mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Powell, 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.
May is the month with the most rainfall in Powell, Wyoming. Rain falls for 15.4 days and accumulates 1.5" (38mm) of precipitation.
The month with the longest days in Powell, Wyoming, is June, with an average of 15h and 30min of daylight.
The months with the highest UV index in Powell, Wyoming, are June and July, with an average maximum UV index of 6.
In Powell, July is the warmest month, with temperatures averaging a high of 83.8°F (28.8°C) and a low of 60.4°F (15.8°C).
July and August, with an average relative humidity of 37%, are the least humid months in Powell.
In Powell, Wyoming, snow does not fall in July and August.
The month with the most sunshine is July, with an average of 12.1h of sunshine.
Powell's December weather, with an average high temperature of 29.7°F (-1.3°C) and an average low temperature of 15.6°F (-9.1°C), tends to be the coldest of the year.
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Powell, 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 (29.7°F).
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (15.6°F).
Average pressure
Powell, WY
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.16"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Powell, WY
- Average wind speed in January:
6.3mph - Average wind speed in February:
6.5mph - Average wind speed in March:
7.3mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.7mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.2mph - Average wind speed in September:
6.7mph - Average wind speed in October:
7.1mph - Average wind speed in November:
6.8mph - Average wind speed in December:
6.5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Powell, WY
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall
Powell, WY
- Average rainfall in January:
0.31" - Average rainfall in February:
0.59" - Average rainfall in March:
0.55" - Average rainfall in April:
0.94" - Average rainfall in May:
1.5" - Average rainfall in June:
0.91"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.63" - Average rainfall in September:
0.71" - Average rainfall in October:
0.63" - Average rainfall in November:
0.47" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days
Powell, WY
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
15.4 days - Average rainfall days in June:
12.1 days
- Average rainfall days in July:
9.1 days - Average rainfall days in August:
9.2 days - Average rainfall days in September:
7.1 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
5.4 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is December (4.9 days).
Average snowfall
Powell, WY
- Average snowfall in January:
2.05" - Average snowfall in February:
3.9" - Average snowfall in March:
1.77" - Average snowfall in April:
2.2" - Average snowfall in May:
1.5" - Average snowfall in June:
0.12"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are July and August (0").
Average snowfall days
Powell, WY
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
11 days - Average snowfall days in March:
6.6 days - Average snowfall days in April:
5.3 days - Average snowfall days in May:
1.5 days - Average snowfall days in June:
0.1 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:
3.5 days - Average snowfall days in November:
7.1 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Powell, 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 54min - 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:
6h and 42min - Average sunshine in February:
6h and 42min - Average sunshine in March:
9h and 6min - Average sunshine in April:
10h and 48min - Average sunshine in May:
11h and 6min - Average sunshine in June:
12h and 0min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 48min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 54min - Average sunshine in December:
6h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).
Average sunshine days
Powell, WY
- Average sunshine days in January:
20 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
17.2 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
14.7 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
17.8 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
21.7 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index
Powell, WY
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Powell, WY
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility
Powell, 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).
