Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Powell features a cold semi-arid climate (BSk). Temperatures typically range between -7 °C (20 °F) and 24 °C (75 °F) through the year, but rarely can drop to -31 °C (-24 °F) or can rise to as high as 41 °C (105 °F). The average annual precipitation amounts to about 290 mm (11.4 inches) and receives 60 rainy days on the 1 mm (0.04 inches) threshold annually. Powell enjoys an average of 3327 hours of sunshine throughout the year, and daylight varies from 8 hours 50 minutes to 15 hours 30 minutes per day.
The warmest months in Powell are June, July and August, with daily mean temperatures ranging from 19 to 24 °C (66 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -4 °C (20 - 25 °F) throughout the day. On average each year, Powell experiences 78 days above 25 °C (77.0 °F) and 150 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 12°C (53°F) |
13°C (56°F) |
25°C (77°F) |
27°C (81°F) |
30°C (86°F) |
39°C (103°F) |
41°C (105°F) |
39°C (103°F) |
37°C (98°F) |
27°C (81°F) |
19°C (67°F) |
17°C (63°F) |
Mean maximum | 8°C (47°F) |
11°C (52°F) |
20°C (68°F) |
25°C (78°F) |
29°C (84°F) |
31°C (88°F) |
38°C (100°F) |
37°C (98°F) |
34°C (94°F) |
23°C (74°F) |
15°C (60°F) |
11°C (52°F) |
Average high | 1°C (34°F) |
-1°C (30°F) |
9°C (49°F) |
13°C (56°F) |
19°C (66°F) |
26°C (79°F) |
32°C (89°F) |
30°C (86°F) |
23°C (74°F) |
13°C (55°F) |
7°C (44°F) |
2°C (35°F) |
Daily mean | -5°C (24°F) |
-7°C (20°F) |
3°C (37°F) |
6°C (44°F) |
12°C (54°F) |
19°C (66°F) |
24°C (75°F) |
22°C (71°F) |
16°C (61°F) |
6°C (43°F) |
1°C (34°F) |
-4°C (25°F) |
Average low | -10°C (15°F) |
-12°C (10°F) |
-3°C (27°F) |
-0°C (32°F) |
6°C (42°F) |
11°C (52°F) |
15°C (59°F) |
13°C (56°F) |
8°C (47°F) |
0°C (33°F) |
-4°C (25°F) |
-9°C (16°F) |
Mean minimum | -22°C (-8°F) |
-26°C (-15°F) |
-15°C (4°F) |
-10°C (14°F) |
-1°C (31°F) |
5°C (41°F) |
9°C (48°F) |
7°C (46°F) |
1°C (34°F) |
-13°C (9°F) |
-13°C (9°F) |
-21°C (-5°F) |
Minimum | -27°C (-17°F) |
-31°C (-24°F) |
-26°C (-15°F) |
-18°C (-0°F) |
-3°C (27°F) |
2°C (36°F) |
7°C (45°F) |
6°C (43°F) |
-1°C (30°F) |
-25°C (-13°F) |
-17°C (2°F) |
-26°C (-14°F) |
Compare temperature, precipitation, sunshine, UV index in Powell, Wyoming, United States with other places around the world.
Powell usually has the most precipitation in April, May and June, with an average of 8 rainy days and 41 mm (1.6 inches) of precipitation per month. The driest months in Powell are January, July and August. On average, 12 mm (0.5 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 10 (0.4) | 25 (1.0) | 16 (0.6) | 38 (1.5) | 52 (2.1) | 34 (1.3) | 13 (0.5) | 13 (0.5) | 31 (1.2) | 28 (1.1) | 17 (0.7) | 14 (0.6) |
Average precipitation days (≥ 1 mm) | 2 | 7 | 4 | 8 | 10 | 6 | 3 | 2 | 4 | 7 | 4 | 3 |
The sunniest months in Powell are June, July and August, when the sun shines an average of 12 hours 7 minutes a day. Least sunny months in Powell: January, February and December receive an average of 6 hours 16 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 162 | 200 | 278 | 282 | 322 | 374 | 390 | 350 | 292 | 247 | 219 | 207 |
Mean daily daylight hours | 9h 13m | 10h 26m | 11h 57m | 13h 31m | 14h 50m | 15h 30m | 15h 8m | 13h 57m | 12h 27m | 10h 54m | 9h 32m | 8h 50m |
Powell experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Powell UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 3 | 5 | 6 | 8 | 10 | 11 | 11 | 10 | 8 | 6 | 3 | 2 |
Discover in-depth weather details for every month in Powell. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Powell's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.