Hot-summer humid continental climate
Climate La Harpe - Illinois
Annual high62ºF
Annual low41ºF
Precipitation39.82 inch
| Month | HighºF | LowºF | Precipinch |
|---|---|---|---|
| Jan | 33 | 15 | 1.49 |
| Feb | 38 | 19 | 1.75 |
| Mar | 50 | 29 | 2.66 |
| Apr | 63 | 40 | 3.90 |
| May | 73 | 51 | 4.80 |
| Jun | 82 | 61 | 4.75 |
| Jul | 86 | 65 | 4.64 |
| Aug | 85 | 63 | 3.73 |
| Sep | 77 | 53 | 3.79 |
| Oct | 65 | 42 | 3.09 |
| Nov | 51 | 31 | 2.94 |
| Dec | 37 | 19 | 2.28 |
- JanHigh 33ºFLow 15ºFPrecip 1.49 inch
- FebHigh 38ºFLow 19ºFPrecip 1.75 inch
- MarHigh 50ºFLow 29ºFPrecip 2.66 inch
- AprHigh 63ºFLow 40ºFPrecip 3.90 inch
- MayHigh 73ºFLow 51ºFPrecip 4.80 inch
- JunHigh 82ºFLow 61ºFPrecip 4.75 inch
- JulHigh 86ºFLow 65ºFPrecip 4.64 inch
- AugHigh 85ºFLow 63ºFPrecip 3.73 inch
- SepHigh 77ºFLow 53ºFPrecip 3.79 inch
- OctHigh 65ºFLow 42ºFPrecip 3.09 inch
- NovHigh 51ºFLow 31ºFPrecip 2.94 inch
- DecHigh 37ºFLow 19ºFPrecip 2.28 inch
Climate summary
What is the average weather in La Harpe, Illinois?
La Harpe experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm, while winters bring cold conditions. The area is fairly wet overall, with precipitation spread relatively evenly throughout the year, though summer tends to be the wettest season.
La Harpe weather averages
Annual high62ºF
Annual low41ºF
Precipitation39.82 inch
Daily normals La Harpe - Illinois - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 32.9 | 16.8 | 0.06 | 0.06 |
| Jan 2 | 32.7 | 16.6 | 0.11 | 0.11 |
| Jan 3 | 32.6 | 16.4 | 0.16 | 0.16 |
| Jan 4 | 32.4 | 16.2 | 0.22 | 0.22 |
| Jan 5 | 32.3 | 16.0 | 0.28 | 0.28 |
| Jan 6 | 32.1 | 15.8 | 0.33 | 0.33 |
| Jan 7 | 32.0 | 15.6 | 0.39 | 0.39 |
| Jan 8 | 31.9 | 15.4 | 0.44 | 0.44 |
| Jan 9 | 31.8 | 15.2 | 0.50 | 0.50 |
| Jan 10 | 31.7 | 15.1 | 0.55 | 0.55 |
| Jan 11 | 31.6 | 14.9 | 0.61 | 0.61 |
| Jan 12 | 31.5 | 14.8 | 0.66 | 0.66 |
| Jan 13 | 31.5 | 14.7 | 0.71 | 0.71 |
| Jan 14 | 31.4 | 14.6 | 0.77 | 0.77 |
| Jan 15 | 31.4 | 14.4 | 0.82 | 0.82 |
| Jan 16 | 31.3 | 14.4 | 0.87 | 0.87 |
| Jan 17 | 31.3 | 14.3 | 0.92 | 0.92 |
| Jan 18 | 31.3 | 14.2 | 0.98 | 0.98 |
| Jan 19 | 31.3 | 14.2 | 1.03 | 1.03 |
| Jan 20 | 31.3 | 14.1 | 1.08 | 1.08 |
| Jan 21 | 31.4 | 14.1 | 1.13 | 1.13 |
| Jan 22 | 31.4 | 14.1 | 1.17 | 1.17 |
| Jan 23 | 31.5 | 14.1 | 1.22 | 1.22 |
| Jan 24 | 31.5 | 14.2 | 1.27 | 1.27 |
| Jan 25 | 31.6 | 14.2 | 1.32 | 1.32 |
| Jan 26 | 31.7 | 14.3 | 1.37 | 1.37 |
| Jan 27 | 31.8 | 14.4 | 1.42 | 1.42 |
| Jan 28 | 31.9 | 14.5 | 1.46 | 1.46 |
| Jan 29 | 32.1 | 14.6 | 1.51 | 1.51 |
| Jan 30 | 32.2 | 14.8 | 1.55 | 1.55 |
| Jan 31 | 32.4 | 14.9 | 1.60 | 1.60 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history La Harpe - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 73.9 | 59.0 | 0.35 |
| Oct 2 | 73.9 | 50.0 | 1.60 |
| Oct 3 | 70.0 | 46.9 | 0.00 |
| Oct 4 | 73.9 | 48.0 | 0.00 |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | 81.0 | 46.0 | 0.00 |
| Oct 9 | 80.1 | 48.0 | 0.10 |
| Oct 10 | 81.0 | 57.0 | 0.00 |
| Oct 11 | 84.0 | 54.0 | 0.00 |
| Oct 12 | 87.1 | 55.9 | 0.00 |
| Oct 13 | 88.0 | 63.0 | 0.00 |
| Oct 14 | 84.0 | 60.1 | 0.17 |
| Oct 15 | 66.9 | 60.1 | 0.00 |
| Oct 16 | 66.0 | 45.0 | 0.16 |
| Oct 17 | 53.1 | 33.1 | T |
| Oct 18 | – | – | – |
| Oct 19 | 66.9 | 36.0 | 0.00 |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | 73.9 | 44.1 | 0.00 |
| Oct 23 | 73.0 | 44.1 | 0.00 |
| Oct 24 | 77.0 | 46.0 | 0.00 |
| Oct 25 | 75.9 | 50.0 | 0.00 |
| Oct 26 | 79.0 | 50.0 | 0.00 |
| Oct 27 | 78.1 | 52.0 | 0.00 |
| Oct 28 | 69.1 | 52.0 | 0.00 |
| Oct 29 | 78.1 | 55.9 | 0.00 |
| Oct 30 | 78.1 | 50.0 | 0.00 |
| Oct 31 | 63.0 | 50.0 | T |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature88.0ºF · Oct 13
- Lowest max temperature53.1ºF · Oct 17
- Highest min temperature63.0ºF · Oct 13
- Lowest min temperature33.1ºF · Oct 17
Geo La Harpe - Illinois
Location
- Country
- United States
- State
- Illinois
- County
- Hancock
- City
- La Harpe
- Zip Code
- 61450
- Elevation
- 676 ft
- Longitude
- -90.97
- Latitude
- 40.58
- ICAO
- –
- IATA
- –