January is one of the cooler months of the year in Wasilla, with average highs near -7.1°C and lows around -12.7°C (mean -9.9°C). It is one of the drier months, averaging 58 mm of rainfall and 87% relative humidity across the period.
January is one of the cooler months of the year in Wasilla. Across 45 years of records, the warmest January in Wasilla was 1981 — when the month averaged -3°C — while the coldest was 1989 at -20.7°C. Typical January days reach -7.1°C with nights near -12.7°C. The long-term January temperature trend is broadly flat.
January is one of the drier months in Wasilla, averaging 58 mm of rainfall. The wettest January on record was 2025 with 136 mm, while the driest was 1982 at 14 mm.
Relative humidity in Wasilla during January averages 87%. The most humid January was 2007 at 93%, and the least humid was 1996 at 76%.
January receives about 0.3 kWh/m²/day of solar energy in Wasilla. The sunniest January was 2024 at 0.4 kWh/m²/day, and the cloudiest were 2007, 2013 and 2014, among others at 0.2.
Average wind speed in Wasilla during January is 1.7 m/s. The windiest January was 2025 at 2.6 m/s, while the calmest was 2006 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -9.6°C | -10.9°C | -10.3°C | -8.9°C | -9.8°C | -0.2°C |
| Avg High | -6.6°C | -7.9°C | -7.5°C | -6.3°C | -7.3°C | -0.7°C |
| Avg Low | -12.5°C | -13.9°C | -13.2°C | -11.5°C | -12.3°C | +0.2°C |
| Avg Rain | 60 mm | 53 mm | 60 mm | 53 mm | 65 mm | +5 mm |
January temperatures in Wasilla have risen by about 0.4°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -44.8°C (1989) to a record high of 4.5°C (2014).
Rainfall in January is one of the drier months, averaging 58 mm, with a wettest year of 136 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A quieter season to visit Wasilla
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Wasilla. That said, January — with days averaging -7.1°C and nights around -12.7°C (mean -9.9°C) and moderate rainfall (58 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | -3.3°C | -5.8°C | -8.2°C | 2.8°C | -26.3°C | 136 mm | 87% | 2.6 m/s | 0.3 |
| 2024 | -9.6°C | -12.5°C | -15.3°C | -2.0°C | -26.6°C | 37 mm | 90% | 1.6 m/s | 0.4 |
| 2023 | -3.6°C | -5.8°C | -8.1°C | -0.2°C | -18.8°C | 56 mm | 91% | 1.3 m/s | 0.3 |
| 2022 | -7.7°C | -10.3°C | -12.9°C | 0.7°C | -25.7°C | 70 mm | 90% | 2.3 m/s | 0.3 |
| 2021 | -4.5°C | -7.0°C | -9.5°C | 0.2°C | -22.1°C | 60 mm | 88% | 1.6 m/s | 0.3 |
| 2020 | -15.0°C | -17.4°C | -19.8°C | -5.1°C | -27.3°C | 30 mm | 90% | 1.5 m/s | 0.3 |
| 2019 | -6.8°C | -9.6°C | -12.3°C | 1.4°C | -28.0°C | 44 mm | 87% | 1.5 m/s | 0.3 |
| 2018 | -6.8°C | -9.4°C | -12.0°C | 2.3°C | -20.8°C | 42 mm | 87% | 2 m/s | 0.3 |
| 2017 | -8.3°C | -11.5°C | -14.7°C | 0.1°C | -29.8°C | 63 mm | 83% | 1.5 m/s | 0.3 |
| 2016 | -1.9°C | -3.9°C | -5.9°C | 1.9°C | -11.0°C | 43 mm | 88% | 1.7 m/s | 0.3 |
| 2015 | -5.7°C | -8.3°C | -10.8°C | 2.3°C | -23.2°C | 40 mm | 86% | 1.4 m/s | 0.3 |
| 2014 | -1.5°C | -3.7°C | -5.9°C | 4.5°C | -16.8°C | 83 mm | 92% | 1.7 m/s | 0.2 |
| 2013 | -5.3°C | -8.1°C | -10.9°C | 2.5°C | -31.7°C | 104 mm | 91% | 1.6 m/s | 0.2 |
| 2012 | -14.6°C | -17.6°C | -20.7°C | -1.7°C | -26.6°C | 33 mm | 90% | 1.6 m/s | 0.3 |
| 2011 | -7.1°C | -9.6°C | -12.1°C | 1.9°C | -26.7°C | 37 mm | 86% | 1.9 m/s | 0.3 |
| 2010 | -5.1°C | -7.6°C | -10.0°C | 1.4°C | -20.2°C | 38 mm | 83% | 1.6 m/s | 0.3 |
| 2009 | -9.7°C | -12.6°C | -15.4°C | 3.8°C | -31.1°C | 61 mm | 88% | 2 m/s | 0.3 |
| 2008 | -9.2°C | -12.4°C | -15.6°C | 0.8°C | -26.5°C | 52 mm | 90% | 1.4 m/s | 0.3 |
| 2007 | -8.5°C | -11.8°C | -15.0°C | 0.5°C | -31.5°C | 62 mm | 93% | 1.6 m/s | 0.2 |
| 2006 | -9.4°C | -11.8°C | -14.2°C | -0.9°C | -25.8°C | 25 mm | 86% | 1.1 m/s | 0.3 |
| 2005 | -6.4°C | -9.1°C | -11.9°C | 1.5°C | -24.6°C | 60 mm | 80% | 1.6 m/s | 0.3 |
| 2004 | -11.7°C | -15.1°C | -18.5°C | -0.7°C | -27.6°C | 30 mm | 83% | 1.7 m/s | 0.3 |
| 2003 | -3.9°C | -6.6°C | -9.2°C | 1.6°C | -22.2°C | 37 mm | 86% | 1.4 m/s | 0.3 |
| 2002 | -4.5°C | -7.1°C | -9.8°C | 0.6°C | -22.2°C | 87 mm | 89% | 1.7 m/s | 0.2 |
| 2001 | -2.1°C | -4.5°C | -6.9°C | 2.9°C | -15.7°C | 87 mm | 88% | 2.2 m/s | 0.2 |
| 2000 | -9.2°C | -12.2°C | -15.2°C | -0.9°C | -27.0°C | 100 mm | 90% | 1.8 m/s | 0.3 |
| 1999 | -9.8°C | -12.9°C | -16.1°C | -0.8°C | -33.8°C | 49 mm | 83% | 1.7 m/s | 0.3 |
| 1998 | -6.6°C | -9.3°C | -12.0°C | -0.1°C | -26.6°C | 39 mm | 86% | 1.5 m/s | 0.3 |
| 1997 | -8.2°C | -11.2°C | -14.3°C | -0.2°C | -31.8°C | 34 mm | 85% | 1.8 m/s | 0.3 |
| 1996 | -12.0°C | -14.3°C | -16.6°C | -2.6°C | -26.5°C | 20 mm | 76% | 1.5 m/s | 0.3 |
| 1995 | -7.4°C | -10.3°C | -13.2°C | 1.1°C | -25.6°C | 41 mm | 88% | 1.5 m/s | 0.3 |
| 1994 | -5.2°C | -7.5°C | -9.8°C | 1.5°C | -25.7°C | 53 mm | 87% | 1.6 m/s | 0.3 |
| 1993 | -7.8°C | -11.8°C | -15.7°C | -1.0°C | -27.2°C | 102 mm | 89% | 1.6 m/s | 0.3 |
| 1992 | -5.5°C | -8.4°C | -11.4°C | 0.1°C | -20.7°C | 58 mm | 89% | 1.6 m/s | 0.3 |
| 1991 | -7.9°C | -11.2°C | -14.4°C | 0.8°C | -32.8°C | 50 mm | 88% | 1.7 m/s | 0.3 |
| 1990 | -8.5°C | -11.8°C | -15.1°C | -0.4°C | -30.1°C | 87 mm | 90% | 1.4 m/s | 0.3 |
| 1989 ❄️ | -16.2°C | -20.7°C | -25.1°C | -1.1°C | -44.8°C | 32 mm | 91% | 1.5 m/s | 0.3 |
| 1988 | -6.1°C | -8.5°C | -11.0°C | -0.8°C | -24.0°C | 49 mm | 89% | 1.5 m/s | 0.3 |
| 1987 | -3.8°C | -7.3°C | -10.7°C | 0.8°C | -24.9°C | 96 mm | 89% | 2 m/s | 0.3 |
| 1986 | -3.6°C | -5.9°C | -8.2°C | 2.2°C | -13.5°C | 64 mm | 86% | 1.7 m/s | 0.3 |
| 1985 | -1.5°C | -4.3°C | -7.2°C | 1.4°C | -13.9°C | 101 mm | 92% | 1.8 m/s | 0.3 |
| 1984 | -6.5°C | -9.4°C | -12.2°C | 3.0°C | -27.9°C | 64 mm | 87% | 1.6 m/s | 0.3 |
| 1983 | -8.8°C | -11.5°C | -14.2°C | -0.4°C | -31.6°C | 34 mm | 83% | 1.9 m/s | — |
| 1982 | -12.3°C | -15.5°C | -18.7°C | -3.9°C | -35.5°C | 14 mm | 81% | 1.5 m/s | — |
| 1981 🔥 | -0.6°C | -3.0°C | -5.3°C | 2.6°C | -11.2°C | 86 mm | 88% | 2.5 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around -7.1°C with lows near -12.7°C (mean -9.9°C), based on 45 years of NASA POWER data.
January averages 58 mm of rainfall in Wasilla, one of the drier months. The wettest on record was 136 mm in 2025.
The hottest January reached 4.5°C in 2014. The coldest dipped to -44.8°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.4°C. Daytime highs moved from -5.9°C to -5.7°C and overnight lows from -11.5°C to -10.8°C over the same span.
January is one of the cooler months of the year in Wasilla and one of the drier months, so plan for around -7.1°C daytime highs and -12.7°C at night.
Yes — January is the coldest month of the year in Wasilla, averaging -9.9°C.
For January in Wasilla, pack warm layers and a jacket for chilly mornings, with typical highs of -7.1°C and lows of -12.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 87% — quite humid.
Average wind speed in January is 1.7 m/s. The windiest January on record averaged 2.6 m/s (2025).
The wettest January on record was 2025 with 136 mm. On average, January sees 58 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Wasilla behaves each January, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for January specifically, along with year-by-year records and how the month has changed over the decades.
