La Harpe, IL
Climate overview — based on NOAA 1991-2020 normals from LA HARPE, IL US.
Year-round temperatures (°F)
Climate summary
La Harpe has an annual average temperature of 50.8°F with about 39.1 inches of precipitation per year. The warmest month is July (average high 84.6°F), and the coldest is January (average low 14.9°F). May is typically the wettest month (5.22 in) and January the driest (1.60 in).
Best time to visit La Harpe
Full guide →Climate change signal
All-time records →29 of 366 (7.9%) of La Harpe'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.
| 1890s | 24 | |
| 1900s | 19 | |
| 1910s | 47 | |
| 1920s | 22 | |
| 1930s | 89 | |
| 1940s | 18 | |
| 1950s | 25 | |
| 1960s | 19 | |
| 1970s | 11 | |
| 1980s | 20 | |
| 1990s | 12 | |
| 2000s | 19 | |
| 2010s | 25 | |
| 2020s | 16 |
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 | 31.8°F | 14.9°F | 23.3°F | 1.60 in | — | 6 |
| February | 36.6°F | 19.0°F | 27.8°F | 1.83 in | — | 6 |
| March | 49.3°F | 29.3°F | 39.3°F | 2.42 in | — | 7 |
| April | 61.7°F | 40.0°F | 50.9°F | 3.92 in | — | 9 |
| May | 72.3°F | 51.7°F | 62.0°F | 5.22 in | — | 11 |
| June | 81.1°F | 61.3°F | 71.2°F | 4.94 in | — | 9 |
| July | 84.6°F | 64.7°F | 74.6°F | 4.23 in | — | 8 |
| August | 83.0°F | 62.6°F | 72.8°F | 3.42 in | — | 7 |
| September | 76.7°F | 54.0°F | 65.3°F | 3.83 in | — | 7 |
| October | 64.2°F | 42.2°F | 53.2°F | 3.10 in | — | 7 |
| November | 49.3°F | 30.5°F | 39.9°F | 2.54 in | — | 6 |
| December | 37.0°F | 20.8°F | 28.9°F | 2.05 in | — | 6 |
Climate twins of La Harpe
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).