Astoria, SD
Climate overview — based on NOAA 1991-2020 normals from ASTORIA 4S, SD US.
Year-round temperatures (°F)
Avg high
Avg low
Climate summary
Astoria has an annual average temperature of 42.5°F with about 0 inches of precipitation per year. The warmest month is July (average high 80.1°F), and the coldest is January (average low 3.2°F).
Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
58.1°F
warmest to coldest month
Best time to visit Astoria
Full guide →Climate change signal
All-time records →16 of 366 (4.4%) of Astoria'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 | 75 | |
| 2000s | 205 | |
| 2010s | 86 |
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 | 20.4°F | 3.2°F | 11.8°F | in | — | — |
| February | 24.8°F | 7.2°F | 16.0°F | in | — | — |
| March | 37.2°F | 19.2°F | 28.2°F | in | — | — |
| April | 52.2°F | 31.7°F | 41.9°F | in | — | — |
| May | 65.4°F | 44.4°F | 54.9°F | in | — | — |
| June | 75.1°F | 55.3°F | 65.2°F | in | — | — |
| July | 80.1°F | 59.7°F | 69.9°F | in | — | — |
| August | 77.7°F | 57.9°F | 67.8°F | in | — | — |
| September | 70.3°F | 48.8°F | 59.5°F | in | — | — |
| October | 55.9°F | 35.5°F | 45.7°F | in | — | — |
| November | 39.6°F | 21.7°F | 30.7°F | in | — | — |
| December | 25.5°F | 10.2°F | 17.9°F | in | — | — |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when