Polo, IL
Climate overview — based on NOAA 1991-2020 normals from POLO 5NW, IL US.
Year-round temperatures (°F)
Climate summary
Polo has an annual average temperature of 49.3°F with about 40 inches of precipitation per year. The warmest month is July (average high 84.5°F), and the coldest is January (average low 13.3°F). June is typically the wettest month (5.07 in) and January the driest (1.94 in).
Best time to visit Polo
Full guide →Climate change signal
All-time records →45 of 366 (12.3%) of Polo'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.
| 1990s | 69 | |
| 2000s | 160 | |
| 2010s | 137 |
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 | 30.1°F | 13.3°F | 21.7°F | 1.94 in | — | 11 |
| February | 34.7°F | 16.8°F | 25.7°F | 1.95 in | — | 9 |
| March | 47.8°F | 27.5°F | 37.6°F | 2.79 in | — | 11 |
| April | 61.1°F | 37.7°F | 49.4°F | 3.85 in | — | 12 |
| May | 73.0°F | 49.3°F | 61.1°F | 4.72 in | — | 14 |
| June | 82.0°F | 59.0°F | 70.5°F | 5.07 in | — | 12 |
| July | 84.5°F | 61.6°F | 73.0°F | 4.40 in | — | 10 |
| August | 82.8°F | 59.2°F | 71.0°F | 3.71 in | — | 10 |
| September | 76.8°F | 51.2°F | 64.0°F | 3.59 in | — | 8 |
| October | 63.9°F | 40.3°F | 52.1°F | 3.21 in | — | 9 |
| November | 48.2°F | 29.3°F | 38.7°F | 2.65 in | — | 10 |
| December | 35.1°F | 19.2°F | 27.2°F | 2.14 in | — | 11 |
Climate twins of Polo
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).