St. Paul weather by month
What a typical year looks like in St. Paul, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Saint Paul Island Airport, 7 km from St. Paul; records cover 1892–2026.
The year at a glance
- Precipitation a year
- 24.3 in618 mm
- Snow a year
- 64 in163 cm
- Last spring freeze
- Jun 7
- First fall freeze
- Sep 23
- Heating degree days
- 10,585
- 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 0°−18° (heating, 99%) and 58°14° (cooling, 1%).
Month by month
St. Paul in January
Highs average 29°−2° and lows 21°−6°, with 1.6 in41 mm of precipitation and 17 in42 cm of snow in a typical January.
- Record high
- 48°9° (1916)
- Record low
- −26°−32° (1919)
- Heating degree days
- 1231
- Cooling degree days
- 0
St. Paul in February
Highs average 29°−1° and lows 21°−6°, with 1.4 in36 mm of precipitation and 11 in28 cm of snow in a typical February.
- Record high
- 44°7° (1917)
- Record low
- −16°−27° (1991)
- Heating degree days
- 1112
- Cooling degree days
- 0
St. Paul in March
Highs average 30°−1° and lows 21°−6°, with 1.3 in33 mm of precipitation and 10 in24 cm of snow in a typical March.
- Record high
- 50°10° (1980)
- Record low
- −19°−28° (1971)
- Heating degree days
- 1235
- Cooling degree days
- 0
St. Paul in April
Highs average 34°1° and lows 26°−3°, with 1 in26 mm of precipitation and 5 in13 cm of snow in a typical April.
- Record high
- 49°9° (1993)
- Record low
- −8°−22° (1976)
- Heating degree days
- 1047
- Cooling degree days
- 0
St. Paul in May
Highs average 41°5° and lows 32°0°, with 1 in26 mm of precipitation and 0.8 in2 cm of snow in a typical May.
- Record high
- 59°15° (1997)
- Record low
- 8°−13° (1971)
- Heating degree days
- 880
- Cooling degree days
- 0
St. Paul in June
Highs average 48°9° and lows 39°4°, with 1.3 in33 mm of precipitation in a typical June.
- Record high
- 62°17° (1926)
- Record low
- 16°−9° (1985)
- Heating degree days
- 657
- Cooling degree days
- 0
St. Paul in July
Highs average 52°11° and lows 44°7°, with 2 in50 mm of precipitation in a typical July.
- Record high
- 65°18° (2008)
- Record low
- 28°−2° (1961)
- Heating degree days
- 530
- Cooling degree days
- 0
St. Paul in August
Highs average 53°12° and lows 46°8°, with 3.1 in78 mm of precipitation in a typical August.
- Record high
- 66°19° (1987)
- Record low
- 29°−2° (1981)
- Heating degree days
- 479
- Cooling degree days
- 0
St. Paul in September
Highs average 50°10° and lows 42°5°, with 3 in76 mm of precipitation in a typical September.
- Record high
- 62°17° (1925)
- Record low
- 22°−6° (1992)
- Heating degree days
- 570
- Cooling degree days
- 0
St. Paul in OctoberThis month
Highs average 44°6° and lows 35°2°, with 3.3 in84 mm of precipitation and 1.6 in4.1 cm of snow in a typical October.
- Record high
- 54°12° (1915)
- Record low
- 12°−11° (1983)
- Heating degree days
- 792
- Cooling degree days
- 0
St. Paul in November
Highs average 38°3° and lows 30°−1°, with 3 in75 mm of precipitation and 7 in18 cm of snow in a typical November.
- Record high
- 50°10° (1915)
- Record low
- 4°−16° (1988)
- Heating degree days
- 933
- Cooling degree days
- 0
St. Paul in December
Highs average 33°1° and lows 25°−4°, with 2.3 in58 mm of precipitation and 12 in31 cm of snow in a typical December.
- Record high
- 52°11° (1936)
- Record low
- −5°−21° (1916)
- Heating degree days
- 1119
- Cooling degree days
- 0