Koyukuk, AK
Climate overview — based on NOAA 1991-2020 normals from GALENA, AK US.
Year-round temperatures (°F)
Climate summary
Koyukuk has an annual average temperature of 26°F with about 13.9 inches of precipitation per year and 77.2 inches of snow. The warmest month is July (average high 69.4°F), and the coldest is January (average low -16.8°F). August is typically the wettest month (2.47 in) and April the driest (0.33 in). Snow typically falls from September through May.
Best time to visit Koyukuk
Full guide →Climate change signal
All-time records →85 of 366 (23.2%) of Koyukuk's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1990s | 44 | |
| 2000s | 218 | |
| 2010s | 64 | |
| 2020s | 40 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | -2.7°F | -16.8°F | -9.8°F | 0.60 in | 11.0 in | 7 |
| February | 9.0°F | -9.5°F | -0.3°F | 0.75 in | 14.9 in | 9 |
| March | 18.6°F | -4.8°F | 6.9°F | 0.59 in | 9.1 in | 7 |
| April | 37.7°F | 16.8°F | 27.2°F | 0.33 in | 4.6 in | 6 |
| May | 56.6°F | 34.6°F | 45.6°F | 0.44 in | 0.4 in | 6 |
| June | 68.7°F | 47.3°F | 58.0°F | 1.59 in | — | 9 |
| July | 69.4°F | 51.1°F | 60.2°F | 2.04 in | — | 11 |
| August | 62.4°F | 45.6°F | 54.0°F | 2.47 in | — | 15 |
| September | 51.7°F | 35.4°F | 43.5°F | 1.75 in | 0.3 in | 12 |
| October | 31.4°F | 19.6°F | 25.5°F | 1.18 in | 8.3 in | 11 |
| November | 11.6°F | -0.6°F | 5.5°F | 1.24 in | 12.8 in | 10 |
| December | 2.7°F | -11.5°F | -4.4°F | 0.95 in | 15.8 in | 11 |
Climate twins of Koyukuk
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).