Island City, OR
Climate overview — based on NOAA 1991-2020 normals from LA GRANDE, OR US.
Year-round temperatures (°F)
Climate summary
Island City has an annual average temperature of 49.4°F with about 17.4 inches of precipitation per year and 9.4 inches of snow. The warmest month is August (average high 87.0°F), and the coldest is December (average low 24.4°F). May is typically the wettest month (2.24 in) and July the driest (0.60 in). Snow typically falls from November through March.
Best time to visit Island City
Full guide →Climate change signal
All-time records →111 of 366 (30.3%) of Island City'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.
| 1960s | 40 | |
| 1970s | 54 | |
| 1980s | 58 | |
| 1990s | 52 | |
| 2000s | 46 | |
| 2010s | 40 | |
| 2020s | 76 |
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 | 39.3°F | 24.6°F | 31.9°F | 1.67 in | 3.3 in | 10 |
| February | 44.0°F | 26.8°F | 35.4°F | 1.23 in | 1.0 in | 8 |
| March | 51.6°F | 30.6°F | 41.1°F | 1.72 in | 0.8 in | 10 |
| April | 58.7°F | 35.2°F | 47.0°F | 1.83 in | 0.1 in | 10 |
| May | 67.8°F | 42.5°F | 55.2°F | 2.24 in | — | 9 |
| June | 74.9°F | 48.7°F | 61.8°F | 1.37 in | — | 8 |
| July | 86.2°F | 54.5°F | 70.3°F | 0.60 in | — | 4 |
| August | 87.0°F | 52.8°F | 69.9°F | 0.67 in | — | 3 |
| September | 77.3°F | 44.8°F | 61.0°F | 0.67 in | — | 4 |
| October | 62.4°F | 35.6°F | 49.0°F | 1.58 in | — | 8 |
| November | 47.7°F | 30.0°F | 38.8°F | 1.94 in | 1.2 in | 10 |
| December | 38.7°F | 24.4°F | 31.5°F | 1.88 in | 3.0 in | 11 |
Climate twins of Island City
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).