Tanana weather by month
What a typical year looks like in Tanana, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Tanana Airport, 3 km from Tanana; records cover 1902–2026.
The year at a glance
- Precipitation a year
- 11.5 in291 mm
- Snow a year
- 50 in127 cm
- Last spring freeze
- May 24
- First fall freeze
- Aug 24
- Heating degree days
- 14,408
- Cooling degree days
- 26
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −48°−44° (heating, 99%) and 83°28° (cooling, 1%).
Month by month
Tanana in January
Highs average −1°−18° and lows −17°−27°, with 0.38 in9.7 mm of precipitation and 8 in20 cm of snow in a typical January.
- Record high
- 43°6° (2025)
- Record low
- −76°−60° (1989)
- Heating degree days
- 2303
- Cooling degree days
- 0
Tanana in February
Highs average 8°−13° and lows −11°−24°, with 0.44 in11 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 45°7° (1943)
- Record low
- −68°−56° (1903)
- Heating degree days
- 1854
- Cooling degree days
- 0
Tanana in March
Highs average 19°−7° and lows −6°−21°, with 0.24 in6.1 mm of precipitation and 5 in14 cm of snow in a typical March.
- Record high
- 60°16° (1905)
- Record low
- −57°−49° (1956)
- Heating degree days
- 1819
- Cooling degree days
- 0
Tanana in April
Highs average 39°4° and lows 16°−9°, with 0.3 in7.6 mm of precipitation and 2.5 in6.4 cm of snow in a typical April.
- Record high
- 70°21° (1960)
- Record low
- −40° (1920)
- Heating degree days
- 1126
- Cooling degree days
- 0
Tanana in May
Highs average 59°15° and lows 33°1°, with 0.64 in16 mm of precipitation and 0.3 in0.8 cm of snow in a typical May.
- Record high
- 89°32° (2011)
- Record low
- −14°−26° (1945)
- Heating degree days
- 585
- Cooling degree days
- 0
Tanana in June
Highs average 70°21° and lows 45°7°, with 1.5 in38 mm of precipitation in a typical June.
- Record high
- 94°34° (1969)
- Record low
- 23°−5° (1933)
- Heating degree days
- 229
- Cooling degree days
- 11
Tanana in July
Highs average 71°22° and lows 49°9°, with 2 in50 mm of precipitation in a typical July.
- Record high
- 92°33° (1946)
- Record low
- 29°−2° (1924)
- Heating degree days
- 175
- Cooling degree days
- 14
Tanana in August
Highs average 64°18° and lows 43°6°, with 2.7 in68 mm of precipitation in a typical August.
- Record high
- 90°32° (1907)
- Record low
- 20°−7° (1985)
- Heating degree days
- 356
- Cooling degree days
- 1
Tanana in September
Highs average 52°11° and lows 34°1°, with 1.7 in43 mm of precipitation and 0.8 in2 cm of snow in a typical September.
- Record high
- 78°26° (1957)
- Record low
- 4°−16° (1983)
- Heating degree days
- 671
- Cooling degree days
- 0
Tanana in OctoberThis month
Highs average 31°0° and lows 17°−8°, with 0.71 in18 mm of precipitation and 5 in13 cm of snow in a typical October.
- Record high
- 66°19° (2003)
- Record low
- −27°−33° (1907)
- Heating degree days
- 1260
- Cooling degree days
- 0
Tanana in November
Highs average 11°−12° and lows −4°−20°, with 0.56 in14 mm of precipitation and 10 in25 cm of snow in a typical November.
- Record high
- 45°7° (1997)
- Record low
- −53°−47° (1990)
- Heating degree days
- 1852
- Cooling degree days
- 0
Tanana in December
Highs average 2°−16° and lows −13°−25°, with 0.41 in10 mm of precipitation and 10 in26 cm of snow in a typical December.
- Record high
- 46°8° (1934)
- Record low
- −64°−53° (1902)
- Heating degree days
- 2178
- Cooling degree days
- 0