Otterville, IL
Climate overview — based on NOAA 1991-2020 normals from JERSEYVILLE 2 SW, IL US.
Year-round temperatures (°F)
Climate summary
Otterville has an annual average temperature of 53.4°F with about 42.2 inches of precipitation per year and 12.5 inches of snow. The warmest month is July (average high 86.5°F), and the coldest is January (average low 19.2°F). May is typically the wettest month (5.29 in) and February the driest (2.31 in). Snow typically falls from November through March.
Best time to visit Otterville
Full guide →Climate change signal
All-time records →36 of 366 (9.8%) of Otterville'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.
| 1940s | 38 | |
| 1950s | 113 | |
| 1960s | 41 | |
| 1970s | 24 | |
| 1980s | 44 | |
| 1990s | 21 | |
| 2000s | 31 | |
| 2010s | 35 | |
| 2020s | 19 |
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 | 36.3°F | 19.2°F | 27.8°F | 2.45 in | 4.3 in | 8 |
| February | 41.5°F | 22.8°F | 32.2°F | 2.31 in | 3.7 in | 7 |
| March | 52.5°F | 31.8°F | 42.2°F | 3.17 in | 1.6 in | 10 |
| April | 64.8°F | 42.1°F | 53.4°F | 4.55 in | — | 11 |
| May | 74.3°F | 53.8°F | 64.1°F | 5.29 in | — | 12 |
| June | 82.9°F | 62.8°F | 72.8°F | 4.12 in | — | 9 |
| July | 86.5°F | 66.0°F | 76.2°F | 3.56 in | — | 8 |
| August | 85.2°F | 63.3°F | 74.2°F | 3.72 in | — | 7 |
| September | 79.2°F | 54.7°F | 66.9°F | 3.44 in | — | 7 |
| October | 67.2°F | 43.3°F | 55.2°F | 3.29 in | — | 8 |
| November | 52.8°F | 33.0°F | 42.9°F | 3.67 in | 0.7 in | 9 |
| December | 41.2°F | 24.2°F | 32.7°F | 2.65 in | 2.2 in | 8 |
Climate twins of Otterville
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).