Mosquito Lake weather by month
What a typical year looks like in Mosquito Lake, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Haines 40nw, 10 km from Mosquito Lake; records cover 1989–2026.
The year at a glance
- Precipitation a year
- 48.3 in1227 mm
- Snow a year
- 245 in623 cm
- Last spring freeze
- May 24
- First fall freeze
- Sep 19
- Heating degree days
- 10,153
- Cooling degree days
- 10
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −9°−23° (heating, 99%) and 83°28° (cooling, 1%).
Month by month
Mosquito Lake in January
Highs average 23°−5° and lows 12°−11°, with 5.5 in140 mm of precipitation and 53 in135 cm of snow in a typical January.
- Record high
- 44°7° (2009)
- Record low
- −24°−31° (1990)
- Heating degree days
- 1477
- Cooling degree days
- 0
Mosquito Lake in February
Highs average 29°−2° and lows 14°−10°, with 4.1 in103 mm of precipitation and 39 in99 cm of snow in a typical February.
- Record high
- 54°12° (1991)
- Record low
- −24°−31° (1990)
- Heating degree days
- 1217
- Cooling degree days
- 0
Mosquito Lake in March
Highs average 35°1° and lows 17°−8°, with 3.7 in93 mm of precipitation and 34 in85 cm of snow in a typical March.
- Record high
- 58°14° (1994)
- Record low
- −16°−27° (2007)
- Heating degree days
- 1210
- Cooling degree days
- 0
Mosquito Lake in April
Highs average 46°8° and lows 27°−3°, with 2.2 in56 mm of precipitation and 6 in14 cm of snow in a typical April.
- Record high
- 70°21° (2003)
- Record low
- 1°−17° (1996)
- Heating degree days
- 861
- Cooling degree days
- 0
Mosquito Lake in May
Highs average 58°14° and lows 35°2°, with 1.7 in44 mm of precipitation and 0.2 in0.5 cm of snow in a typical May.
- Record high
- 80°27° (2015)
- Record low
- 22°−6° (2002)
- Heating degree days
- 580
- Cooling degree days
- 0
Mosquito Lake in June
Highs average 66°19° and lows 43°6°, with 1.3 in33 mm of precipitation in a typical June.
- Record high
- 89°32° (2004)
- Record low
- 25°−4° (2008)
- Heating degree days
- 319
- Cooling degree days
- 2
Mosquito Lake in July
Highs average 68°20° and lows 48°9°, with 1.4 in36 mm of precipitation in a typical July.
- Record high
- 91°33° (2023)
- Record low
- 31°−1° (1999)
- Heating degree days
- 219
- Cooling degree days
- 5
Mosquito Lake in August
Highs average 66°19° and lows 46°8°, with 2.7 in68 mm of precipitation in a typical August.
- Record high
- 92°33° (2005)
- Record low
- 19°−7° (1999)
- Heating degree days
- 277
- Cooling degree days
- 3
Mosquito Lake in September
Highs average 56°13° and lows 40°4°, with 5.4 in138 mm of precipitation and 0.2 in0.5 cm of snow in a typical September.
- Record high
- 80°27° (2025)
- Record low
- 23°−5° (1992)
- Heating degree days
- 514
- Cooling degree days
- 0
Mosquito Lake in OctoberThis month
Highs average 44°6° and lows 31°0°, with 6.9 in174 mm of precipitation and 8 in19 cm of snow in a typical October.
- Record high
- 67°19° (2003)
- Record low
- 9°−13° (2012)
- Heating degree days
- 857
- Cooling degree days
- 0
Mosquito Lake in November
Highs average 30°−1° and lows 19°−7°, with 5.7 in146 mm of precipitation and 44 in113 cm of snow in a typical November.
- Record high
- 51°11° (2003)
- Record low
- −15°−26° (2011)
- Heating degree days
- 1212
- Cooling degree days
- 0
Mosquito Lake in December
Highs average 24°−4° and lows 15°−10°, with 7.8 in197 mm of precipitation and 62 in156 cm of snow in a typical December.
- Record high
- 49°9° (1999)
- Record low
- −25°−32° (1990)
- Heating degree days
- 1410
- Cooling degree days
- 0