Silvis, IL Weather & Climate Normals
What a normal year in Silvis actually looks like
On the 30-year record NOAA keeps for Silvis, IL, the comfort score comes out to 42/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 4 months a year land in the 55–75°F range this site treats as mild.
How much Silvis's weather actually swings
Average temperatures in Silvis run from 22°F in Jan up to 76°F in Jul, a 53.3°F seasonal swing, one of the widest gaps in this dataset.
Silvis, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 31°F | 14°F | 1.51in |
| Feb | 35°F | 18°F | 1.64in |
| Mar | 47°F | 28°F | 2.57in |
| Apr | 61°F | 40°F | 3.77in |
| May | 72°F | 52°F | 4.81in |
| Jun | 82°F | 62°F | 4.61in |
| Jul | 85°F | 66°F | 4.17in |
| Aug | 83°F | 64°F | 4.06in |
| Sep | 77°F | 56°F | 3.35in |
| Oct | 64°F | 44°F | 2.6in |
| Nov | 48°F | 31°F | 2.14in |
| Dec | 36°F | 21°F | 1.89in |
If you're timing a visit, May, Jun, Aug, and Sep are Silvis's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet Silvis actually gets
Silvis averages 37.12in of precipitation a year across roughly 111 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Silvis against the rest of the country
Out of 4876 cities scored here, Silvis comes in at 4283; within IL alone it ranks 284 of 330. Population is about 8,003.
Checking the actual forecast
These figures come from Le Claire L&D 14, IA US, the NOAA station 5.3 miles from Silvis, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · Why this uses the nearest NOAA station