Seward weather by month
What a typical year looks like in Seward, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Seward, 4 km from Seward; records cover 1908–2026.
The year at a glance
- Precipitation a year
- 69.7 in1771 mm
- Snow a year
- Rare
- Last spring freeze
- May 7
- First fall freeze
- Oct 2
- Heating degree days
- 8,961
- Cooling degree days
- 9
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 4°−16° (heating, 99%) and 76°24° (cooling, 1%).
Month by month
Seward in January
Highs average 31°0° and lows 21°−6°, with 6.5 in164 mm of precipitation in a typical January.
- Record high
- 61°16° (2014)
- Record low
- −20°−29° (1919)
- Heating degree days
- 1203
- Cooling degree days
- 0
Seward in February
Highs average 34°1° and lows 24°−5°, with 6.4 in161 mm of precipitation in a typical February.
- Record high
- 56°13° (1938)
- Record low
- −17°−27° (1947)
- Heating degree days
- 1011
- Cooling degree days
- 0
Seward in March
Highs average 37°3° and lows 25°−4°, with 3.9 in98 mm of precipitation in a typical March.
- Record high
- 67°19° (1915)
- Record low
- −7°−22° (1911)
- Heating degree days
- 1051
- Cooling degree days
- 0
Seward in April
Highs average 45°7° and lows 32°0°, with 4.3 in109 mm of precipitation in a typical April.
- Record high
- 74°23° (2005)
- Record low
- −1°−18° (1944)
- Heating degree days
- 786
- Cooling degree days
- 0
Seward in May
Highs average 53°12° and lows 39°4°, with 3.5 in89 mm of precipitation in a typical May.
- Record high
- 80°27° (2013)
- Record low
- 14°−10° (1945)
- Heating degree days
- 580
- Cooling degree days
- 0
Seward in June
Highs average 59°15° and lows 46°8°, with 2.3 in59 mm of precipitation in a typical June.
- Record high
- 88°31° (2013)
- Record low
- 30°−1° (1922)
- Heating degree days
- 381
- Cooling degree days
- 2
Seward in July
Highs average 62°17° and lows 50°10°, with 3.1 in79 mm of precipitation in a typical July.
- Record high
- 88°31° (1915)
- Record low
- 30°−1° (1917)
- Heating degree days
- 278
- Cooling degree days
- 5
Seward in August
Highs average 62°17° and lows 50°10°, with 5.4 in137 mm of precipitation in a typical August.
- Record high
- 95°35° (1966)
- Record low
- 30°−1° (1921)
- Heating degree days
- 288
- Cooling degree days
- 2
Seward in September
Highs average 56°13° and lows 43°6°, with 9.9 in251 mm of precipitation in a typical September.
- Record high
- 84°29° (1910)
- Record low
- 26°−3° (1946)
- Heating degree days
- 464
- Cooling degree days
- 0
Seward in OctoberThis month
Highs average 46°8° and lows 35°2°, with 8.7 in221 mm of precipitation in a typical October.
- Record high
- 65°18° (1918)
- Record low
- 8°−13° (1975)
- Heating degree days
- 769
- Cooling degree days
- 0
Seward in November
Highs average 36°2° and lows 27°−3°, with 7.6 in193 mm of precipitation in a typical November.
- Record high
- 58°14° (1914)
- Record low
- −4°−20° (1942)
- Heating degree days
- 1009
- Cooling degree days
- 0
Seward in December
Highs average 33°1° and lows 23°−5°, with 8.2 in209 mm of precipitation in a typical December.
- Record high
- 53°12° (1914)
- Record low
- −12°−24° (1918)
- Heating degree days
- 1141
- Cooling degree days
- 0