Alaska has a cold continental climate with warm summers and freezing winters.
Alaska has an average annual temperature of 28.8°F across all 3 cities, with approximately 1027 mm of annual precipitation and average humidity of 84%. Temperatures peak in July and drop to their lowest in January, while rainfall is highest during summer months.
The warmest city is Fairbanks with average July highs of 76.8°F, while Fairbanks is the coldest with average January lows of -36.9°F. Humidity remains high throughout the year, especially during winter months, creating cold and damp conditions. These seasonal patterns make summer ideal for outdoor activities, while winters bring freezing conditions and heavy snowfall.
| Month | 🌤️ | High | Low | Avg | Humid % | Rain (mm) | Wind (m/s) | Solar (kWh/m²) |
|---|---|---|---|---|---|---|---|---|
| January | ❄️ | 30.6°F | -22.9°F | 3.9°F | 90% | 78 | 2.6 | 0.20 |
| February | ❄️ | 32.4°F | -19.1°F | 6.6°F | 89% | 63 | 2.4 | 0.90 |
| March | ❄️ | 35.4°F | -12.1°F | 11.7°F | 88% | 54 | 2.4 | 2.50 |
| April | ❄️ | 46.0°F | 2.7°F | 24.4°F | 84% | 52 | 1.7 | 4.20 |
| May | 🌤️ | 63.7°F | 24.1°F | 43.9°F | 76% | 63 | 1.3 | 5.00 |
| June | ⛅ | 73.4°F | 36.9°F | 55.2°F | 74% | 82 | 1.2 | 5.40 |
| July | ⛅ | 74.8°F | 43.0°F | 58.8°F | 78% | 106 | 1.2 | 4.80 |
| August | ⛅ | 71.4°F | 37.6°F | 54.5°F | 80% | 131 | 1.3 | 3.60 |
| September | ⛅ | 60.8°F | 25.9°F | 43.3°F | 83% | 127 | 1.3 | 2.30 |
| October | ⛅ | 46.9°F | 4.6°F | 25.9°F | 88% | 100 | 1.7 | 1.10 |
| November | ⛅ | 32.2°F | -11.9°F | 10.0°F | 91% | 82 | 2.1 | 0.30 |
| December | ⛅ | 31.5°F | -17.3°F | 7.0°F | 91% | 90 | 2.4 | 0.10 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 3 cities in Alaska
🧥 Pack heavy layers and prepare for snow — this is a Severe Winter destination.
🌤️ Conditions are ideal for outdoor activities throughout the day in this Mild Summer.
☔ Moderate Rainfall expected — carry rain gear and plan outdoor activities around these months.
Region-wide monthly averages across 3 cities · 1981–2025 · °F
Temperatures rise steadily from spring, peak in July, and gradually decline through autumn into winter.
These seasonal patterns make summer ideal for outdoor activities, while winters bring freezing conditions and heavy snowfall.
Region-wide monthly rainfall · 1981–2025 · mm/month
Monthly averages · 1981–2025
💧 Humidity peaks at 91% in December · annual avg 84%
The warmest year on record was 2016 (avg: 34.0°F), while the coldest year was 1999 (avg: 25.2°F).
Averaged across all 3 cities in Alaska · Last 10 years · °F
Averaged across all 3 cities in Alaska · Last 10 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 3 cities in Alaska for each year.
| Year | Min Temp | Avg Temp | Max Temp | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|
2025 | 12.6°F | 31.3°F | 50.0°F | 1228 | 86% | 1.9 m/s |
2024 | 7.2°F | 28.6°F | 50.0°F | 1132 | 86% | 1.9 m/s |
2023 | 9.5°F | 29.1°F | 48.7°F | 1125 | 87% | 1.7 m/s |
2022 | 9.3°F | 30.0°F | 50.7°F | 1179 | 85% | 1.9 m/s |
2021 | 4.1°F | 27.1°F | 50.0°F | 980 | 85% | 1.8 m/s |
2020 | 7.3°F | 27.9°F | 48.4°F | 1017 | 85% | 1.8 m/s |
2019 🔥 | 12.6°F | 32.7°F | 53.1°F | 1094 | 83% | 1.7 m/s |
2018 | 12.2°F | 31.1°F | 50.2°F | 1137 | 84% | 1.8 m/s |
2017 | 10.0°F | 30.6°F | 50.9°F | 1038 | 84% | 1.8 m/s |
2016 | 15.6°F | 34.0°F | 52.3°F | 1012 | 83% | 1.8 m/s |
Showing 1 to 10 of 45 years
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.
