Kupreanof, AK
Climate overview — based on NOAA 1991-2020 normals from PETERSBURG 1, AK US.
Year-round temperatures (°F)
Climate summary
Kupreanof has an annual average temperature of 43°F with about 110.2 inches of precipitation per year and 85.6 inches of snow. The warmest month is July (average high 61.7°F), and the coldest is January (average low 27.2°F). September is typically the wettest month (14.35 in) and June the driest (4.98 in). Snow typically falls from October through May.
Best time to visit Kupreanof
Full guide →Climate change signal
All-time records →55 of 366 (15%) of Kupreanof'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.
| 1920s | 5 | |
| 1930s | 49 | |
| 1940s | 67 | |
| 1950s | 23 | |
| 1960s | 24 | |
| 1970s | 19 | |
| 1980s | 43 | |
| 1990s | 39 | |
| 2000s | 31 | |
| 2010s | 50 | |
| 2020s | 16 |
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 | 34.6°F | 27.2°F | 30.9°F | 11.39 in | 20.7 in | 21 |
| February | 36.7°F | 27.5°F | 32.1°F | 7.60 in | 16.9 in | 17 |
| March | 40.3°F | 29.6°F | 34.9°F | 7.60 in | 20.0 in | 20 |
| April | 47.8°F | 35.1°F | 41.4°F | 6.66 in | 1.1 in | 18 |
| May | 55.3°F | 41.7°F | 48.5°F | 5.86 in | 0.2 in | 16 |
| June | 59.9°F | 48.1°F | 54.0°F | 4.98 in | — | 16 |
| July | 61.7°F | 51.0°F | 56.3°F | 5.63 in | — | 17 |
| August | 61.2°F | 50.3°F | 55.8°F | 8.21 in | — | 17 |
| September | 55.7°F | 45.8°F | 50.8°F | 14.35 in | — | 20 |
| October | 47.4°F | 39.2°F | 43.3°F | 13.84 in | 0.4 in | 23 |
| November | 39.3°F | 32.3°F | 35.8°F | 12.28 in | 10.8 in | 23 |
| December | 35.3°F | 28.4°F | 31.8°F | 11.79 in | 15.5 in | 21 |
Climate twins of Kupreanof
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).