Annual mean
Annual mean of daily highs
Annual mean of daily lows
La Harpe city, Illinois
Official LSAD Designation: La Harpe city • Census GEOID: 1740832
• Hancock County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for La Harpe city.
Reference Weather Station: LA HARPE, IL US (ID: USC00114823)
• Located 0.1 miles from community center
• Elevation: 210.3 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 31.8° | 14.9° | 23.3° | 1.60" |
| February | 36.6° | 19.0° | 27.8° | 1.83" |
| March | 49.3° | 29.3° | 39.3° | 2.42" |
| April | 61.7° | 40.0° | 50.9° | 3.92" |
| May | 72.3° | 51.7° | 62.0° | 5.22" |
| June | 81.1° | 61.3° | 71.2° | 4.94" |
| July | 84.6° | 64.7° | 74.6° | 4.23" |
| August | 83.0° | 62.6° | 72.8° | 3.42" |
| September | 76.7° | 54.0° | 65.3° | 3.83" |
| October | 64.2° | 42.2° | 53.2° | 3.10" |
| November | 49.3° | 30.5° | 39.9° | 2.54" |
| December | 37.0° | 20.8° | 28.9° | 2.05" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station LA HARPE, IL US (ID: USC00114823) • 0.1 miles from community center .
This is the same reference station used for monthly normals.
Source: NOAA NCEI Global Summary of the Year.
Annual temperature data table (°F)
| Year | Annual mean (°F) | Annual mean of daily highs (°F) | Annual mean of daily lows (°F) |
|---|---|---|---|
| 2010 | 51.4 | 61.7 | 41.2 |
| 2011 | Unavailable | Unavailable | Unavailable |
| 2012 | 54.4 | 65.6 | 43.1 |
| 2013 | 49.6 | 59.7 | 39.4 |
| 2014 | 48.0 | 58.0 | 37.9 |
| 2015 | 52.3 | 62.3 | 42.2 |
| 2016 | 54.0 | 63.8 | 44.2 |
| 2017 | 53.1 | 63.4 | 42.8 |
| 2018 | 50.9 | 60.8 | 41.0 |
| 2019 | 50.1 | 59.7 | 40.6 |
| 2020 | 51.4 | 60.7 | 42.1 |
| 2021 | 51.9 | 60.9 | 42.9 |
| 2022 | 49.7 | 59.5 | 40.0 |
| 2023 | 52.9 | 63.3 | 42.6 |
| 2024 | 53.9 | 64.3 | 43.6 |
| 2025 | 52.5 | 63.8 | 41.3 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.