Waterman, Illinois Climate
United States
Pop. 1,494 Elev. 256 m / 840 ft
TZ: America/Chicago (UTC-5) ·
Waterman has a dry climate with warm summers reaching 86°F (30°C) in July and cold winters averaging 15°F (-9°C) in January. Humidity pushes the summer feels-like temperature to 95°F (35°C), while wind chill can drive winter lows to 6°F (-14°C). Rain falls on about 45 days per year (31.5 in / 799 mm total), with snow on 4 days and 33 in (845 mm) of annual accumulation. The city averages 118 sunny days per year and around 36 thunderstorm days.
| Temperature | 86°F (30°C) high | 15°F (-9°C) low |
| Feels like | 95°F (35°C) high | 6°F (-15°C) low |
| Rain | 45 days | 31.5 in (799 mm) /yr |
| Snow | 4 days | 33.3 in (845 mm) /yr |
| Sky | 118 sunny | 36 stormy |
| Wind | 2.6 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Sep, Oct
Sky & Air by Month
Cloud cover (%)
54
Jan 63
Feb 55
Mar 67
Apr 59
May 53
Jun 62
Jul 53
Aug 36
Sep 46
Oct 57
Nov 75
Dec Humidity (%)
60
Jan 66
Feb 58
Mar 59
Apr 61
May 64
Jun 73
Jul 74
Aug 66
Sep 64
Oct 66
Nov 77
Dec Weather Days by Month
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Nearby
Commercial airport 34 mi Chicago Rockford International Airport (RFD)
Ski resort 25 mi
National park 60 mi Historic Pullman Foundation Exhibit Hall
Hospital 11 mi Northwestern Medicine Valley West Hospital
Hiking trail 26 mi ADT - Illinois - I - Seg 2
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 31°F -1°C | 15°F -9°C | 1.1 in 27 mm | 3.7 in93 mm | 14 |
| February | 35°F 1°C | 19°F -7°C | 0.1 in 2 mm | 7.0 in177 mm | 6 |
| March | 57°F 14°C | 35°F 2°C | 3.5 in 90 mm | 4.7 in119 mm | 12 |
| April | 62°F 17°C | 43°F 6°C | 3.1 in 80 mm | 0.0 in1 mm | 4 |
| May | 70°F 21°C | 50°F 10°C | 3.6 in 91 mm | — | 9 |
| June | 84°F 29°C | 64°F 18°C | 3.8 in 98 mm | — | 10 |
| July | 86°F 30°C | 69°F 21°C | 5.5 in 138 mm | — | 6 |
| August | 80°F 27°C | 63°F 17°C | 3.5 in 90 mm | — | 13 |
| September | 79°F 26°C | 56°F 13°C | 2.2 in 56 mm | — | 18 |
| October | 67°F 20°C | 49°F 9°C | 1.9 in 48 mm | — | 13 |
| November | 50°F 10°C | 35°F 2°C | 1.2 in 30 mm | 10.2 in259 mm | 9 |
| December | 34°F 1°C | 19°F -7°C | 1.9 in 49 mm | 7.7 in196 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 1 |
| February | 6 | 0 |
| March | 12 | 3 |
| April | 4 | 2 |
| May | 9 | 3 |
| June | 10 | 5 |
| July | 6 | 9 |
| August | 13 | 6 |
| September | 18 | 5 |
| October | 13 | 1 |
| November | 9 | 0 |
| December | 4 | 1 |