Powell weather by month
What a typical year looks like in Powell, Wyoming: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Deaver, 20 km from Powell; records cover 1916–2026.
The year at a glance
- Precipitation a year
- 5.5 in140 mm
- Snow a year
- 12 in31 cm
- Last spring freeze
- May 12
- First fall freeze
- Sep 22
- Heating degree days
- 7,504
- Cooling degree days
- 647
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −15°−26° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
Powell in January
Highs average 31°−1° and lows 7°−14°, with 0.09 in2.3 mm of precipitation and 3 in8 cm of snow in a typical January.
- Record high
- 64°18° (2021)
- Record low
- −38°−39° (1930)
- Heating degree days
- 1440
- Cooling degree days
- 0
Powell in February
Highs average 37°3° and lows 12°−11°, with 0.15 in3.8 mm of precipitation and 2.5 in6.4 cm of snow in a typical February.
- Record high
- 74°23° (1999)
- Record low
- −39° (1933)
- Heating degree days
- 1141
- Cooling degree days
- 0
Powell in March
Highs average 51°10° and lows 23°−5°, with 0.21 in5.3 mm of precipitation and 1.3 in3.3 cm of snow in a typical March.
- Record high
- 82°28° (1960)
- Record low
- −24°−31° (2019)
- Heating degree days
- 867
- Cooling degree days
- 0
Powell in April
Highs average 60°16° and lows 32°0°, with 0.4 in10 mm of precipitation and 0.8 in2 cm of snow in a typical April.
- Record high
- 90°32° (1923)
- Record low
- −11°−24° (1936)
- Heating degree days
- 572
- Cooling degree days
- 1
Powell in May
Highs average 70°21° and lows 43°6°, with 1.1 in28 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 98°37° (1964)
- Record low
- 14°−10° (1954)
- Heating degree days
- 290
- Cooling degree days
- 14
Powell in June
Highs average 80°27° and lows 51°11°, with 1.1 in28 mm of precipitation in a typical June.
- Record high
- 105°41° (2021)
- Record low
- 23°−5° (2004)
- Heating degree days
- 84
- Cooling degree days
- 99
Powell in July
Highs average 90°32° and lows 57°14°, with 0.55 in14 mm of precipitation in a typical July.
- Record high
- 109°43° (2026)
- Record low
- 35°2° (1952)
- Heating degree days
- 11
- Cooling degree days
- 273
Powell in August
Highs average 88°31° and lows 55°13°, with 0.35 in8.9 mm of precipitation in a typical August.
- Record high
- 104°40° (1934)
- Record low
- 25°−4° (1976)
- Heating degree days
- 21
- Cooling degree days
- 218
Powell in September
Highs average 77°25° and lows 44°7°, with 0.59 in15 mm of precipitation in a typical September.
- Record high
- 102°39° (1950)
- Record low
- 11°−12° (1926)
- Heating degree days
- 174
- Cooling degree days
- 41
Powell in OctoberThis month
Highs average 61°16° and lows 33°0°, with 0.59 in15 mm of precipitation and 0.6 in1.5 cm of snow in a typical October.
- Record high
- 91°33° (2011)
- Record low
- −6°−21° (1991)
- Heating degree days
- 564
- Cooling degree days
- 1
Powell in November
Highs average 45°7° and lows 20°−7°, with 0.24 in6.1 mm of precipitation and 1.4 in3.6 cm of snow in a typical November.
- Record high
- 76°24° (1924)
- Record low
- −23°−31° (1975)
- Heating degree days
- 972
- Cooling degree days
- 0
Powell in December
Highs average 33°0° and lows 9°−13°, with 0.15 in3.8 mm of precipitation and 2.3 in5.8 cm of snow in a typical December.
- Record high
- 66°19° (2021)
- Record low
- −42°−41° (1919)
- Heating degree days
- 1368
- Cooling degree days
- 0