Olean, NY
Climate overview — based on NOAA 1991-2020 normals from OLEAN, NY US.
Year-round temperatures (°F)
Climate summary
Olean has an annual average temperature of 46.3°F with about 40.7 inches of precipitation per year and 64.7 inches of snow. The warmest month is July (average high 80.3°F), and the coldest is January (average low 13.1°F). June is typically the wettest month (4.48 in) and February the driest (1.97 in). Snow typically falls from October through April.
Best time to visit Olean
Full guide →Climate change signal
All-time records →263 of 366 (71.9%) of Olean'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.
| 1910s | 0 | |
| 1920s | 1 | |
| 1930s | 0 | |
| 1940s | 0 | |
| 1950s | 0 | |
| 1960s | 3 | |
| 1970s | 0 | |
| 1980s | 2 | |
| 1990s | 0 | |
| 2000s | 0 | |
| 2010s | 218 | |
| 2020s | 142 |
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 | 31.7°F | 13.1°F | 22.4°F | 2.73 in | 17.6 in | 19 |
| February | 34.4°F | 14.8°F | 24.6°F | 1.97 in | 13.7 in | 15 |
| March | 43.1°F | 21.1°F | 32.1°F | 2.63 in | 10.1 in | 15 |
| April | 56.5°F | 32.4°F | 44.5°F | 3.35 in | 1.8 in | 15 |
| May | 68.3°F | 43.7°F | 56.0°F | 3.66 in | — | 15 |
| June | 76.0°F | 52.5°F | 64.2°F | 4.48 in | — | 14 |
| July | 80.3°F | 57.0°F | 68.6°F | 4.28 in | — | 13 |
| August | 78.7°F | 55.3°F | 67.0°F | 4.03 in | — | 13 |
| September | 72.6°F | 49.0°F | 60.8°F | 3.85 in | — | 12 |
| October | 59.8°F | 38.4°F | 49.1°F | 3.60 in | 0.3 in | 15 |
| November | 47.3°F | 28.5°F | 37.9°F | 2.87 in | 6.3 in | 14 |
| December | 37.1°F | 20.7°F | 28.9°F | 3.22 in | 14.9 in | 18 |
Climate twins of Olean
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).