Heyworth, Illinois Climate
United States
Pop. 2,890 Elev. 233 m / 764 ft
TZ: America/Chicago (UTC-5) ·
Heyworth has a dry climate with warm summers reaching 86°F (30°C) in July and cold winters averaging 17°F (-8°C) in January. Humidity pushes the summer feels-like temperature to 100°F (38°C), while wind chill can drive winter lows to 9°F (-13°C). Rain falls on about 48 days per year (31.7 in / 806 mm total), with snow on 5 days and 31 in (776 mm) of annual accumulation. The city averages 122 sunny days per year and around 35 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 | 100°F (38°C) high | 9°F (-13°C) low |
| Rain | 48 days | 31.7 in (806 mm) /yr |
| Snow | 5 days | 30.6 in (776 mm) /yr |
| Sky | 122 sunny | 35 stormy |
| Wind | 2.9 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Aug, Sep
Sky & Air by Month
Cloud cover (%)
52
Jan 60
Feb 54
Mar 67
Apr 60
May 56
Jun 66
Jul 49
Aug 34
Sep 44
Oct 50
Nov 70
Dec Humidity (%)
66
Jan 65
Feb 56
Mar 60
Apr 61
May 71
Jun 77
Jul 73
Aug 59
Sep 60
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 12 mi Central Illinois Regional Airport at Bloomington-Normal (BMI)
Ski resort 111 mi
National park 119 mi Historic Pullman Foundation Exhibit Hall
Mountain peak
(5,125 ft) 438 mi Little Haw Knob
Hospital 11 mi Warner Hospital & Health Services
Hiking trail 34 mi River Trail
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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 | 0.3 in 9 mm | 7.4 in188 mm | 15 |
| February | 39°F 4°C | 23°F -5°C | 0.3 in 8 mm | 5.8 in146 mm | 9 |
| March | 61°F 16°C | 39°F 4°C | 3.0 in 76 mm | 1.9 in49 mm | 11 |
| April | 66°F 19°C | 46°F 8°C | 4.7 in 119 mm | 0.2 in5 mm | 4 |
| May | 73°F 23°C | 54°F 12°C | 3.5 in 89 mm | — | 10 |
| June | 84°F 29°C | 66°F 19°C | 5.1 in 130 mm | — | 9 |
| July | 86°F 30°C | 71°F 22°C | 5.6 in 141 mm | — | 3 |
| August | 82°F 28°C | 64°F 18°C | 1.5 in 38 mm | — | 13 |
| September | 82°F 28°C | 57°F 14°C | 1.1 in 27 mm | — | 18 |
| October | 71°F 22°C | 50°F 10°C | 3.9 in 98 mm | — | 15 |
| November | 53°F 12°C | 36°F 2°C | 1.6 in 40 mm | 7.7 in195 mm | 11 |
| December | 38°F 3°C | 22°F -6°C | 1.2 in 31 mm | 7.6 in194 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 15 | 0 |
| February | 9 | 0 |
| March | 11 | 5 |
| April | 4 | 5 |
| May | 10 | 3 |
| June | 9 | 4 |
| July | 3 | 9 |
| August | 13 | 2 |
| September | 18 | 1 |
| October | 15 | 2 |
| November | 11 | 2 |
| December | 4 | 2 |
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 |