St. George weather by month
What a typical year looks like in St. George, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at St. George Island Airport, 1 km from St. George; records cover 1996–2026.
The year at a glance
- Precipitation a year
- 20.4 in518 mm
- Snow a year
- Rare
- Last spring freeze
- May 29
- First fall freeze
- Oct 1
- Heating degree days
- 10,304
- 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 5°−15° (heating, 99%) and 58°14° (cooling, 1%).
Month by month
St. George in January
Highs average 30°−1° and lows 23°−5°, with 1.2 in30 mm of precipitation in a typical January.
- Record high
- 43°6° (2004)
- Record low
- 0°−18° (1997)
- Heating degree days
- 1192
- Cooling degree days
- 0
St. George in February
Highs average 32°0° and lows 24°−4°, with 1.1 in27 mm of precipitation in a typical February.
- Record high
- 44°7° (2019)
- Record low
- −6°−21° (2012)
- Heating degree days
- 1043
- Cooling degree days
- 0
St. George in March
Highs average 31°0° and lows 23°−5°, with 0.8 in20 mm of precipitation in a typical March.
- Record high
- 44°7° (2019)
- Record low
- −4°−20° (2010)
- Heating degree days
- 1167
- Cooling degree days
- 0
St. George in April
Highs average 35°2° and lows 28°−2°, with 0.89 in23 mm of precipitation in a typical April.
- Record high
- 48°9° (2020)
- Record low
- −3°−19° (2012)
- Heating degree days
- 1005
- Cooling degree days
- 0
St. George in May
Highs average 42°5° and lows 34°1°, with 1 in26 mm of precipitation in a typical May.
- Record high
- 63°17° (1997)
- Record low
- 13°−11° (2024)
- Heating degree days
- 849
- Cooling degree days
- 0
St. George in June
Highs average 47°8° and lows 39°4°, with 1.3 in32 mm of precipitation in a typical June.
- Record high
- 62°17° (2015)
- Record low
- 0°−18° (2023)
- Heating degree days
- 651
- Cooling degree days
- 0
St. George in July
Highs average 51°11° and lows 44°7°, with 2 in50 mm of precipitation in a typical July.
- Record high
- 98°37° (2023)
- Record low
- 0°−18° (2023)
- Heating degree days
- 533
- Cooling degree days
- 0
St. George in August
Highs average 52°11° and lows 46°8°, with 2.7 in68 mm of precipitation in a typical August.
- Record high
- 128°53° (2023)
- Record low
- 32°0° (2008)
- Heating degree days
- 487
- Cooling degree days
- 0
St. George in September
Highs average 50°10° and lows 42°6°, with 2.5 in64 mm of precipitation in a typical September.
- Record high
- 59°15° (2016)
- Record low
- 27°−3° (2009)
- Heating degree days
- 570
- Cooling degree days
- 0
St. George in OctoberThis month
Highs average 43°6° and lows 36°2°, with 3 in76 mm of precipitation in a typical October.
- Record high
- 52°11° (2014)
- Record low
- 16°−9° (1999)
- Heating degree days
- 790
- Cooling degree days
- 0
St. George in November
Highs average 38°3° and lows 30°−1°, with 2.3 in57 mm of precipitation in a typical November.
- Record high
- 47°8° (2018)
- Record low
- 14°−10° (1996)
- Heating degree days
- 926
- Cooling degree days
- 0
St. George in December
Highs average 34°1° and lows 26°−3°, with 1.8 in45 mm of precipitation in a typical December.
- Record high
- 45°7° (2022)
- Record low
- 3°−16° (1999)
- Heating degree days
- 1091
- Cooling degree days
- 0