Klawock weather by month
What a typical year looks like in Klawock, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Klawock Airport, 3 km from Klawock; records cover 1997–2026.
The year at a glance
- Precipitation a year
- 89.2 in2266 mm
- Snow a year
- Rare
- Last spring freeze
- May 3
- First fall freeze
- Oct 15
- Heating degree days
- 7,217
- Cooling degree days
- 6
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 12°−11° (heating, 99%) and 76°24° (cooling, 1%).
Month by month
Klawock in January
Highs average 40°4° and lows 31°0°, with 8.7 in220 mm of precipitation in a typical January.
- Record high
- 64°18° (2018)
- Record low
- −14°−26° (1998)
- Heating degree days
- 921
- Cooling degree days
- 0
Klawock in February
Highs average 41°5° and lows 30°−1°, with 6.3 in161 mm of precipitation in a typical February.
- Record high
- 58°14° (2004)
- Record low
- −16°−27° (1998)
- Heating degree days
- 816
- Cooling degree days
- 0
Klawock in March
Highs average 44°7° and lows 31°0°, with 6.8 in173 mm of precipitation in a typical March.
- Record high
- 71°22° (2016)
- Record low
- −8°−22° (1998)
- Heating degree days
- 842
- Cooling degree days
- 0
Klawock in April
Highs average 51°10° and lows 35°2°, with 5.5 in140 mm of precipitation in a typical April.
- Record high
- 81°27° (2005)
- Record low
- 10°−12° (1998)
- Heating degree days
- 662
- Cooling degree days
- 0
Klawock in May
Highs average 57°14° and lows 41°5°, with 4.1 in104 mm of precipitation in a typical May.
- Record high
- 86°30° (2023)
- Record low
- 27°−3° (2003)
- Heating degree days
- 498
- Cooling degree days
- 0
Klawock in June
Highs average 61°16° and lows 46°8°, with 3.4 in87 mm of precipitation in a typical June.
- Record high
- 92°33° (2004)
- Record low
- 33°1° (1999)
- Heating degree days
- 348
- Cooling degree days
- 1
Klawock in July
Highs average 63°17° and lows 51°10°, with 4.3 in108 mm of precipitation in a typical July.
- Record high
- 94°34° (1997)
- Record low
- 39°4° (1997)
- Heating degree days
- 256
- Cooling degree days
- 4
Klawock in August
Highs average 64°18° and lows 51°10°, with 6.8 in172 mm of precipitation in a typical August.
- Record high
- 88°31° (2026)
- Record low
- 37°3° (2019)
- Heating degree days
- 235
- Cooling degree days
- 1
Klawock in September
Highs average 60°15° and lows 47°8°, with 10.7 in272 mm of precipitation in a typical September.
- Record high
- 83°28° (2017)
- Record low
- 27°−3° (1997)
- Heating degree days
- 351
- Cooling degree days
- 0
Klawock in OctoberThis month
Highs average 52°11° and lows 40°4°, with 12.3 in313 mm of precipitation in a typical October.
- Record high
- 68°20° (2022)
- Record low
- 2°−17° (1997)
- Heating degree days
- 598
- Cooling degree days
- 0
Klawock in November
Highs average 44°6° and lows 34°1°, with 10.2 in258 mm of precipitation in a typical November.
- Record high
- 60°16° (2025)
- Record low
- −4°−20° (1997)
- Heating degree days
- 783
- Cooling degree days
- 0
Klawock in December
Highs average 40°5° and lows 31°0°, with 10.1 in257 mm of precipitation in a typical December.
- Record high
- 66°19° (2005)
- Record low
- −3°−19° (1997)
- Heating degree days
- 907
- Cooling degree days
- 0