Normal, Illinois Climate
United States
Pop. 54,373 Elev. 248 m / 814 ft
TZ: America/Chicago (UTC-5) ·
Normal is largely arid, with warm summers peaking at 86°F (30°C) in July and cold winters around 17°F (-8°C) in January. Humidity pushes the summer feels-like temperature to 99°F (37°C), while wind chill can drive winter lows to 9°F (-13°C). Precipitation occurs on roughly 48 days per year (31.8 in / 807 mm total), with snow on 3 days and 30 in (764 mm) of annual accumulation. The city averages 117 sunny days per year and around 33 thunderstorm days. Nearby lake water reaches 79°F (26°C) in summer.
| Temperature | 86°F (30°C) high | 17°F (-8°C) low |
| Feels like | 99°F (37°C) high | 9°F (-13°C) low |
| Rain | 48 days | 31.8 in (807 mm) /yr |
| Snow | 3 days | 30.1 in (764 mm) /yr |
| Sky | 117 sunny | 33 stormy |
| Wind | 3.0 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, May, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
53
Jan 60
Feb 53
Mar 67
Apr 60
May 54
Jun 67
Jul 50
Aug 35
Sep 45
Oct 51
Nov 71
Dec Humidity (%)
64
Jan 65
Feb 57
Mar 61
Apr 61
May 70
Jun 76
Jul 74
Aug 60
Sep 61
Oct 66
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 5 mi Central Illinois Regional Airport at Bloomington-Normal (BMI)
Ski resort 103 mi
National park 109 mi Historic Pullman Foundation Exhibit Hall
Hospital 1 mi Carle BroMenn Medical Center
Hiking trail 27 mi Meadow Valley Park
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 32°F 0°C | 17°F -8°C | 0.4 in 11 mm | 6.6 in168 mm | 15 |
| February | 38°F 3°C | 23°F -5°C | 0.3 in 7 mm | 5.7 in144 mm | 8 |
| March | 60°F 16°C | 38°F 4°C | 3.3 in 84 mm | 2.6 in67 mm | 10 |
| April | 65°F 19°C | 45°F 7°C | 4.2 in 107 mm | 0.1 in3 mm | 4 |
| May | 73°F 23°C | 53°F 12°C | 3.4 in 86 mm | — | 10 |
| June | 84°F 29°C | 66°F 19°C | 4.8 in 122 mm | — | 8 |
| July | 86°F 30°C | 71°F 21°C | 5.5 in 140 mm | — | 3 |
| August | 82°F 28°C | 64°F 18°C | 2.3 in 58 mm | — | 13 |
| September | 82°F 28°C | 57°F 14°C | 1.3 in 33 mm | — | 17 |
| October | 70°F 21°C | 50°F 10°C | 3.4 in 87 mm | — | 15 |
| November | 53°F 11°C | 36°F 2°C | 1.6 in 41 mm | 7.7 in197 mm | 10 |
| December | 37°F 3°C | 21°F -6°C | 1.2 in 31 mm | 7.3 in186 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 15 | 0 |
| February | 8 | 0 |
| March | 10 | 5 |
| April | 4 | 3 |
| May | 10 | 2 |
| June | 8 | 4 |
| July | 3 | 7 |
| August | 13 | 5 |
| September | 17 | 2 |
| October | 15 | 2 |
| November | 10 | 2 |
| December | 4 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 42°F 6°C |
| April | 53°F 12°C |
| May | 61°F 16°C |
| June | 73°F 23°C |
| July | 79°F 26°C |
| August | 75°F 24°C |
| September | 68°F 20°C |
| October | 59°F 15°C |
| November | 43°F 6°C |
| December | 32°F 0°C |