Prudhoe Bay weather by month
What a typical year looks like in Prudhoe Bay, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Deadhorse, 22 km from Prudhoe Bay; records cover 1999–2026.
The year at a glance
- Precipitation a year
- 5.7 in145 mm
- Snow a year
- Rare
- Last spring freeze
- Jun 24
- First fall freeze
- Jul 22
- Heating degree days
- 18,823
- Cooling degree days
- 0
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −44°−42° (heating, 99%) and 71°22° (cooling, 1%).
Month by month
Prudhoe Bay in January
Highs average −8°−22° and lows −22°−30°, with 0.25 in6.4 mm of precipitation in a typical January.
- Record high
- 40°4° (2009)
- Record low
- −51°−46° (2012)
- Heating degree days
- 2475
- Cooling degree days
- 0
Prudhoe Bay in February
Highs average −8°−22° and lows −22°−30°, with 0.13 in3.3 mm of precipitation in a typical February.
- Record high
- 39°4° (2006)
- Record low
- −54°−48° (2012)
- Heating degree days
- 2233
- Cooling degree days
- 0
Prudhoe Bay in March
Highs average −7°−21° and lows −21°−29°, with 0.14 in3.6 mm of precipitation in a typical March.
- Record high
- 37°3° (2019)
- Record low
- −50°−46° (2008)
- Heating degree days
- 2443
- Cooling degree days
- 0
Prudhoe Bay in April
Highs average 10°−12° and lows −4°−20°, with 0.21 in5.3 mm of precipitation in a typical April.
- Record high
- 41°5° (2009)
- Record low
- −37°−38° (2004)
- Heating degree days
- 1864
- Cooling degree days
- 0
Prudhoe Bay in May
Highs average 29°−2° and lows 19°−7°, with 0.3 in7.6 mm of precipitation in a typical May.
- Record high
- 55°13° (2002)
- Record low
- −24°−31° (2013)
- Heating degree days
- 1283
- Cooling degree days
- 0
Prudhoe Bay in June
Highs average 46°8° and lows 34°1°, with 0.57 in14 mm of precipitation in a typical June.
- Record high
- 82°28° (2015)
- Record low
- 20°−7° (2025)
- Heating degree days
- 753
- Cooling degree days
- 0
Prudhoe Bay in July
Highs average 55°13° and lows 40°4°, with 1 in25 mm of precipitation in a typical July.
- Record high
- 85°29° (2016)
- Record low
- 29°−2° (2000)
- Heating degree days
- 548
- Cooling degree days
- 0
Prudhoe Bay in August
Highs average 50°10° and lows 37°3°, with 1.4 in35 mm of precipitation in a typical August.
- Record high
- 89°32° (2024)
- Record low
- 25°−4° (2000)
- Heating degree days
- 665
- Cooling degree days
- 0
Prudhoe Bay in September
Highs average 39°4° and lows 30°−1°, with 0.64 in16 mm of precipitation in a typical September.
- Record high
- 70°21° (2019)
- Record low
- −4°−20° (1999)
- Heating degree days
- 910
- Cooling degree days
- 0
Prudhoe Bay in OctoberThis month
Highs average 24°−5° and lows 13°−11°, with 0.4 in10 mm of precipitation in a typical October.
- Record high
- 50°10° (2003)
- Record low
- −26°−32° (2001)
- Heating degree days
- 1448
- Cooling degree days
- 0
Prudhoe Bay in November
Highs average 8°−13° and lows −5°−20°, with 0.33 in8.4 mm of precipitation in a typical November.
- Record high
- 45°7° (2023)
- Record low
- −43°−42° (2005)
- Heating degree days
- 1899
- Cooling degree days
- 0
Prudhoe Bay in December
Highs average −3°−19° and lows −16°−26°, with 0.36 in9.1 mm of precipitation in a typical December.
- Record high
- 39°4° (2013)
- Record low
- −45°−43° (2010)
- Heating degree days
- 2302
- Cooling degree days
- 0