Hannibal, NY
Climate overview — based on NOAA 1991-2020 normals from OSWEGO, NY US.
Year-round temperatures (°F)
Climate summary
Hannibal has an annual average temperature of 48.7°F with about 43.1 inches of precipitation per year and 140.1 inches of snow. The warmest month is July (average high 79.6°F), and the coldest is January (average low 18.9°F). October is typically the wettest month (4.59 in) and February the driest (2.85 in). Snow typically falls from October through April.
Best time to visit Hannibal
Full guide →Climate change signal
All-time records →57 of 366 (15.6%) of Hannibal'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 | 12 | |
| 1930s | 51 | |
| 1940s | 48 | |
| 1950s | 45 | |
| 1960s | 24 | |
| 1970s | 21 | |
| 1980s | 34 | |
| 1990s | 32 | |
| 2000s | 21 | |
| 2010s | 44 | |
| 2020s | 34 |
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 | 31.1°F | 18.9°F | 25.0°F | 3.76 in | 44.7 in | 20 |
| February | 33.2°F | 20.2°F | 26.7°F | 2.85 in | 35.3 in | 16 |
| March | 40.9°F | 27.4°F | 34.2°F | 3.03 in | 17.1 in | 15 |
| April | 53.2°F | 37.3°F | 45.3°F | 3.48 in | 2.8 in | 14 |
| May | 65.7°F | 47.9°F | 56.8°F | 3.29 in | — | 13 |
| June | 74.8°F | 57.4°F | 66.1°F | 3.38 in | — | 12 |
| July | 79.6°F | 63.4°F | 71.5°F | 3.37 in | — | 11 |
| August | 78.5°F | 62.3°F | 70.4°F | 3.45 in | — | 11 |
| September | 71.6°F | 55.2°F | 63.4°F | 3.92 in | — | 11 |
| October | 59.2°F | 45.1°F | 52.1°F | 4.59 in | 0.2 in | 15 |
| November | 47.3°F | 35.4°F | 41.4°F | 4.12 in | 9.4 in | 16 |
| December | 36.7°F | 26.0°F | 31.3°F | 3.89 in | 30.6 in | 19 |
Climate twins of Hannibal
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).