Tanacross weather by month
What a typical year looks like in Tanacross, Alaska: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Tok #2, 24 km from Tanacross; records cover 2010–2026.
The year at a glance
- Precipitation a year
- 0 in0 mm
- Snow a year
- Rare
- Last spring freeze
- Jun 13
- First fall freeze
- Aug 8
- Heating degree days
- 14,554
- Cooling degree days
- 15
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 84°29° (cooling, 1%).
Month by month
Tanacross in January
Highs average −5°−21° and lows −19°−28°, with — of precipitation in a typical January.
- Record high
- 49°9° (2025)
- Record low
- −63°−53° (2026)
- Heating degree days
- 2391
- Cooling degree days
- 0
Tanacross in February
Highs average 9°−13° and lows −12°−24°, with — of precipitation in a typical February.
- Record high
- 38°3° (2024)
- Record low
- −56°−49° (2015)
- Heating degree days
- 1866
- Cooling degree days
- 0
Tanacross in March
Highs average 25°−4° and lows −5°−20°, with — of precipitation in a typical March.
- Record high
- 58°14° (2016)
- Record low
- −50°−46° (2026)
- Heating degree days
- 1697
- Cooling degree days
- 0
Tanacross in April
Highs average 46°8° and lows 18°−8°, with — of precipitation in a typical April.
- Record high
- 67°19° (2019)
- Record low
- −36°−38° (2021)
- Heating degree days
- 1002
- Cooling degree days
- 0
Tanacross in May
Highs average 61°16° and lows 32°0°, with — of precipitation in a typical May.
- Record high
- 86°30° (2015)
- Record low
- 13°−11° (2013)
- Heating degree days
- 578
- Cooling degree days
- 0
Tanacross in June
Highs average 71°21° and lows 43°6°, with — of precipitation in a typical June.
- Record high
- 92°33° (2013)
- Record low
- 25°−4° (2013)
- Heating degree days
- 259
- Cooling degree days
- 7
Tanacross in July
Highs average 73°23° and lows 46°8°, with — of precipitation in a typical July.
- Record high
- 89°32° (2023)
- Record low
- 30°−1° (2012)
- Heating degree days
- 185
- Cooling degree days
- 8
Tanacross in August
Highs average 66°19° and lows 41°5°, with — of precipitation in a typical August.
- Record high
- 90°32° (2021)
- Record low
- 23°−5° (2012)
- Heating degree days
- 362
- Cooling degree days
- 0
Tanacross in September
Highs average 55°13° and lows 31°−1°, with — of precipitation in a typical September.
- Record high
- 82°28° (2025)
- Record low
- 0°−18° (2021)
- Heating degree days
- 668
- Cooling degree days
- 0
Tanacross in OctoberThis month
Highs average 32°0° and lows 15°−9°, with — of precipitation in a typical October.
- Record high
- 65°18° (2025)
- Record low
- −24°−31° (2016)
- Heating degree days
- 1276
- Cooling degree days
- 0
Tanacross in November
Highs average 8°−13° and lows −7°−22°, with — of precipitation in a typical November.
- Record high
- 38°3° (2022)
- Record low
- −52°−47° (2012)
- Heating degree days
- 1936
- Cooling degree days
- 0
Tanacross in December
Highs average −3°−19° and lows −18°−28°, with — of precipitation in a typical December.
- Record high
- 40°4° (2017)
- Record low
- −58°−50° (2012)
- Heating degree days
- 2334
- Cooling degree days
- 0