Whittier weather by month
What a typical year looks like in Whittier, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Portage Glacier Visitor Center, 10 km from Whittier; records cover 1972–2026.
The year at a glance
- Precipitation a year
- 159.3 in4046 mm
- Snow a year
- Rare
- Last spring freeze
- May 28
- First fall freeze
- Sep 7
- Heating degree days
- 10,151
- 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 −16°−27° (heating, 99%) and 72°22° (cooling, 1%).
Month by month
Whittier in January
Highs average 28°−2° and lows 16°−9°, with 13.8 in352 mm of precipitation in a typical January.
- Record high
- 55°13° (2014)
- Record low
- −30°−34° (2012)
- Heating degree days
- 1345
- Cooling degree days
- 0
Whittier in February
Highs average 31°−1° and lows 19°−7°, with 10.7 in271 mm of precipitation in a typical February.
- Record high
- 51°11° (2020)
- Record low
- −32°−36° (1999)
- Heating degree days
- 1123
- Cooling degree days
- 0
Whittier in March
Highs average 34°1° and lows 18°−8°, with 9.5 in242 mm of precipitation in a typical March.
- Record high
- 56°13° (2016)
- Record low
- −24°−31° (1999)
- Heating degree days
- 1217
- Cooling degree days
- 0
Whittier in April
Highs average 43°6° and lows 29°−2°, with 12.3 in313 mm of precipitation in a typical April.
- Record high
- 67°19° (2005)
- Record low
- −9°−23° (2004)
- Heating degree days
- 879
- Cooling degree days
- 0
Whittier in May
Highs average 52°11° and lows 36°2°, with 11.9 in302 mm of precipitation in a typical May.
- Record high
- 76°24° (2006)
- Record low
- 24°−4° (2013)
- Heating degree days
- 654
- Cooling degree days
- 0
Whittier in June
Highs average 60°15° and lows 43°6°, with 7.5 in190 mm of precipitation in a typical June.
- Record high
- 79°26° (2013)
- Record low
- 20°−7° (1986)
- Heating degree days
- 417
- Cooling degree days
- 0
Whittier in July
Highs average 62°17° and lows 47°8°, with 7.2 in184 mm of precipitation in a typical July.
- Record high
- 84°29° (1986)
- Record low
- 32°0° (2008)
- Heating degree days
- 329
- Cooling degree days
- 0
Whittier in August
Highs average 60°16° and lows 45°7°, with 10.8 in275 mm of precipitation in a typical August.
- Record high
- 82°28° (2019)
- Record low
- 22°−6° (1986)
- Heating degree days
- 389
- Cooling degree days
- 0
Whittier in September
Highs average 54°12° and lows 40°4°, with 22.8 in580 mm of precipitation in a typical September.
- Record high
- 69°21° (2016)
- Record low
- 14°−10° (1986)
- Heating degree days
- 552
- Cooling degree days
- 0
Whittier in OctoberThis month
Highs average 43°6° and lows 31°0°, with 18.9 in481 mm of precipitation in a typical October.
- Record high
- 60°16° (2006)
- Record low
- 0°−18° (2001)
- Heating degree days
- 866
- Cooling degree days
- 0
Whittier in November
Highs average 33°0° and lows 22°−5°, with 16.3 in414 mm of precipitation in a typical November.
- Record high
- 50°10° (1972)
- Record low
- −21°−29° (2006)
- Heating degree days
- 1123
- Cooling degree days
- 0
Whittier in December
Highs average 31°−1° and lows 18°−8°, with 17.5 in444 mm of precipitation in a typical December.
- Record high
- 53°12° (2020)
- Record low
- −22°−30° (2008)
- Heating degree days
- 1257
- Cooling degree days
- 0