Average Weather Data for Alton, Illinois
Monthly Averages
| January | February | March | April | May | June | July | August | September | October | November | December | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average Monthly high in °F: | 40° | 44° | 55° | 67° | 76° | 85° | 89° | 88° | 81° | 69° | 56° | 43° |
| Average Monthly low in °F: | 23° | 26° | 36° | 47° | 57° | 66° | 70° | 69° | 60° | 49° | 38° | 27° |
| Average Snow/Rain (Precip.) (in inches) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Days with precipitation: | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| Hours of sunshine: | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
Yearly Averages
What's The Average High Temp in Alton?
66.1 °F
What's the Average Low in Alton?
47.3 °F
What's the Average Temperature in Alton?
56.7 °F
How Many Inches of Rain per year does Alton get ?
41.3 inches
How Many Rainy Days a year are there in Alton?
N/A
How Much Sunshine each year is there in Alton (in hours)?
N/A
How much, if any, snow falls each year in Alton?
N/A
| What's The Average High Temp in Alton? | 66.1 °F |
| What's the Average Low in Alton? | 47.3 °F |
| What's the Average Temperature in Alton? | 56.7 °F |
| How Many Inches of Rain per year does Alton get ? | 41.3 inches |
| How Many Rainy Days a year are there in Alton? | N/A |
| How Much Sunshine each year is there in Alton (in hours)? | N/A |
| How much, if any, snow falls each year in Alton? | N/A |
N/A = This data was not available for this city. Usually this means the weather station did not supply, track, or have this particular information.
Alton Temperature and Rain Graphs
Average high in °F
Average low in °F
Average precipitation in inches
