Weather & Climate at Rock Island Arsenal Army Base in Arsenal Island, IL
Summary of the weather and climate in Arsenal Island, IL:
- The average high in Arsenal Island, IL is 60.6°F and average low is 40.7°F
- The hottest month is July with an high of 85.8°F
- The coldest month is January with an low of 14.3°F
- Annual rainfall is 37.96 inches. The rainiest month is August with an average of 4.52 inches.
- Annual snowfall is 31.6 inches. The snowiest month is January with an average of 9.4 inches.
SOURCE: NOAA.GOV
Climate Table — Rock Island Arsenal Army Base
Monthly Averages:
| High (°F) | Low (°F) | Rainfall (inches) | Snowfall (inches) | |
|---|---|---|---|---|
| January | 31 | 14.3 | 1.49 | 9.4 |
| February | 35.7 | 18.3 | 1.6 | 6.8 |
| March | 48.8 | 29.4 | 2.86 | 4 |
| April | 62.3 | 40.5 | 3.59 | 0.9 |
| May | 72.9 | 50.7 | 4.32 | 0 |
| June | 82.3 | 60.7 | 4.49 | 0 |
| July | 85.8 | 65 | 4.29 | 0 |
| August | 83.8 | 63.2 | 4.52 | 0 |
| September | 76.8 | 53.9 | 3.09 | 0 |
| October | 64.1 | 42.4 | 2.97 | 0 |
| November | 49.2 | 30.9 | 2.56 | 1.2 |
| December | 34.6 | 18.6 | 2.18 | 9.3 |
Climate Charts — Rock Island Arsenal Army Base
Weather through the year:
Have a correction for this article? Let us know!
Share this page: