Hot-summer humid continental climate
Climate Avon - Illinois
Annual high61ºF
Annual low40ºF
Precipitation37.08 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 32 | 14 | 1.64 | 7 |
| Feb | 36 | 18 | 1.54 | 6 |
| Mar | 49 | 27 | 2.61 | 2 |
| Apr | 63 | 39 | 3.63 | 1 |
| May | 73 | 50 | 4.34 | 0 |
| Jun | 82 | 60 | 4.20 | 0 |
| Jul | 85 | 63 | 4.38 | 0 |
| Aug | 84 | 62 | 3.64 | 0 |
| Sep | 77 | 52 | 3.52 | 0 |
| Oct | 65 | 41 | 2.89 | 0 |
| Nov | 50 | 31 | 2.71 | 1 |
| Dec | 36 | 20 | 1.98 | 7 |
- JanHigh 32ºFLow 14ºFPrecip 1.64 inch
- FebHigh 36ºFLow 18ºFPrecip 1.54 inch
- MarHigh 49ºFLow 27ºFPrecip 2.61 inch
- AprHigh 63ºFLow 39ºFPrecip 3.63 inch
- MayHigh 73ºFLow 50ºFPrecip 4.34 inch
- JunHigh 82ºFLow 60ºFPrecip 4.20 inch
- JulHigh 85ºFLow 63ºFPrecip 4.38 inch
- AugHigh 84ºFLow 62ºFPrecip 3.64 inch
- SepHigh 77ºFLow 52ºFPrecip 3.52 inch
- OctHigh 65ºFLow 41ºFPrecip 2.89 inch
- NovHigh 50ºFLow 31ºFPrecip 2.71 inch
- DecHigh 36ºFLow 20ºFPrecip 1.98 inch
Climate summary
What is the average weather in Avon, Illinois?
Avon experiences a humid continental climate, marked by a very large seasonal temperature contrast. Summers are warm and fairly wet, with the most precipitation arriving during this season. Winters are cold and bring regular snowfall, making for a strong seasonal shift in weather patterns.
Avon weather averages
Annual high61ºF
Annual low40ºF
Precipitation37.08 inch
Snowfall24 inch
Daily normals Avon - Illinois - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 31.5 | 14.6 | 0.05 | 0.05 | 0.20 | 0.20 |
| Jan 2 | 31.3 | 14.4 | 0.11 | 0.11 | 0.50 | 0.50 |
| Jan 3 | 31.1 | 14.2 | 0.16 | 0.16 | 0.70 | 0.70 |
| Jan 4 | 31.0 | 13.9 | 0.22 | 0.22 | 0.90 | 0.90 |
| Jan 5 | 30.9 | 13.7 | 0.27 | 0.27 | 1.10 | 1.10 |
| Jan 6 | 30.7 | 13.5 | 0.33 | 0.33 | 1.40 | 1.40 |
| Jan 7 | 30.6 | 13.4 | 0.38 | 0.38 | 1.60 | 1.60 |
| Jan 8 | 30.6 | 13.2 | 0.45 | 0.45 | 1.90 | 1.90 |
| Jan 9 | 30.5 | 13.1 | 0.50 | 0.50 | 2.10 | 2.10 |
| Jan 10 | 30.4 | 12.9 | 0.56 | 0.56 | 2.30 | 2.30 |
| Jan 11 | 30.4 | 12.8 | 0.62 | 0.62 | 2.60 | 2.60 |
| Jan 12 | 30.4 | 12.7 | 0.68 | 0.68 | 2.80 | 2.80 |
| Jan 13 | 30.3 | 12.6 | 0.74 | 0.74 | 3.10 | 3.10 |
| Jan 14 | 30.3 | 12.5 | 0.80 | 0.80 | 3.30 | 3.30 |
| Jan 15 | 30.3 | 12.5 | 0.86 | 0.86 | 3.60 | 3.60 |
| Jan 16 | 30.4 | 12.4 | 0.92 | 0.92 | 3.80 | 3.80 |
| Jan 17 | 30.4 | 12.4 | 0.99 | 0.99 | 4.10 | 4.10 |
| Jan 18 | 30.4 | 12.4 | 1.05 | 1.05 | 4.30 | 4.30 |
| Jan 19 | 30.5 | 12.4 | 1.12 | 1.12 | 4.60 | 4.60 |
| Jan 20 | 30.5 | 12.4 | 1.18 | 1.18 | 4.80 | 4.80 |
| Jan 21 | 30.6 | 12.4 | 1.24 | 1.24 | 5.00 | 5.00 |
| Jan 22 | 30.7 | 12.5 | 1.30 | 1.30 | 5.30 | 5.30 |
| Jan 23 | 30.8 | 12.5 | 1.36 | 1.36 | 5.50 | 5.50 |
| Jan 24 | 30.9 | 12.6 | 1.42 | 1.42 | 5.80 | 5.80 |
| Jan 25 | 31.0 | 12.7 | 1.48 | 1.48 | 6.00 | 6.00 |
| Jan 26 | 31.1 | 12.7 | 1.54 | 1.54 | 6.30 | 6.30 |
| Jan 27 | 31.2 | 12.8 | 1.59 | 1.59 | 6.50 | 6.50 |
| Jan 28 | 31.3 | 13.0 | 1.65 | 1.65 | 6.70 | 6.70 |
| Jan 29 | 31.5 | 13.1 | 1.71 | 1.71 | 7.00 | 7.00 |
| Jan 30 | 31.6 | 13.2 | 1.77 | 1.77 | 7.20 | 7.20 |
| Jan 31 | 31.8 | 13.4 | 1.83 | 1.83 | 7.40 | 7.40 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Avon - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 70.0 | 59.0 | – |
| Oct 2 | 70.0 | 52.0 | – |
| Oct 3 | 69.1 | 42.1 | 0.00 |
| Oct 4 | 70.0 | 42.1 | 0.00 |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | 82.0 | 46.0 | 0.00 |
| Oct 9 | 79.0 | 46.0 | – |
| Oct 10 | 80.1 | 51.1 | – |
| Oct 11 | 82.0 | 46.0 | 0.00 |
| Oct 12 | 81.0 | 53.1 | 0.00 |
| Oct 13 | 88.0 | 62.1 | 0.00 |
| Oct 14 | 84.9 | 63.0 | – |
| Oct 15 | 71.1 | 59.0 | 0.00 |
| Oct 16 | 66.9 | 45.0 | – |
| Oct 17 | 53.1 | 33.1 | – |
| Oct 18 | – | – | – |
| Oct 19 | 64.0 | 30.9 | 0.00 |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | – | – | – |
| Oct 23 | 75.0 | 43.0 | 0.00 |
| Oct 24 | 73.9 | 46.0 | 0.00 |
| Oct 25 | 73.0 | 42.1 | 0.00 |
| Oct 26 | 77.0 | 46.0 | 0.00 |
| Oct 27 | 75.0 | 46.9 | 0.00 |
| Oct 28 | 69.1 | 48.0 | 0.00 |
| Oct 29 | 77.0 | 50.0 | 0.00 |
| Oct 30 | 70.0 | 41.0 | 0.00 |
| Oct 31 | – | – | – |
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 14
- Lowest min temperature30.9ºF · Oct 19
Geo Avon - Illinois
Location
- Country
- United States
- State
- Illinois
- County
- –
- City
- Avon
- Zip Code
- 61415
- Elevation
- 640 ft
- Longitude
- -90.43
- Latitude
- 40.66
- ICAO
- –
- IATA
- –