Fillmore, IL
Climate overview — based on NOAA 1991-2020 normals from RAMSEY, IL US.
Year-round temperatures (°F)
Climate summary
Fillmore has an annual average temperature of 52.5°F with about 42.5 inches of precipitation per year and 12.8 inches of snow. The warmest month is July (average high 85.4°F), and the coldest is January (average low 18.9°F). May is typically the wettest month (4.75 in) and February the driest (2.17 in). Snow typically falls from November through April.
Best time to visit Fillmore
Full guide →Climate change signal
All-time records →65 of 366 (17.8%) of Fillmore'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.
| 1970s | 0 | |
| 1980s | 0 | |
| 1990s | 109 | |
| 2000s | 107 | |
| 2010s | 137 | |
| 2020s | 13 |
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 | 35.0°F | 18.9°F | 26.9°F | 2.84 in | 3.6 in | 9 |
| February | 40.2°F | 22.4°F | 31.3°F | 2.17 in | 4.4 in | 9 |
| March | 51.0°F | 31.4°F | 41.2°F | 3.11 in | 1.6 in | 10 |
| April | 63.7°F | 41.6°F | 52.6°F | 4.59 in | 0.3 in | 11 |
| May | 73.4°F | 52.6°F | 63.0°F | 4.75 in | — | 12 |
| June | 82.2°F | 61.5°F | 71.9°F | 4.57 in | — | 10 |
| July | 85.4°F | 64.6°F | 75.0°F | 4.06 in | — | 9 |
| August | 84.5°F | 61.9°F | 73.2°F | 3.57 in | — | 8 |
| September | 79.0°F | 53.7°F | 66.3°F | 3.16 in | — | 7 |
| October | 66.6°F | 42.4°F | 54.5°F | 3.55 in | — | 9 |
| November | 51.6°F | 32.4°F | 42.0°F | 3.44 in | 0.5 in | 9 |
| December | 39.8°F | 24.1°F | 31.9°F | 2.68 in | 2.4 in | 9 |
Climate twins of Fillmore
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).