Sumner, Illinois Climate
United States
Pop. 3,183 Elev. 140 m / 459 ft
TZ: America/Chicago (UTC-5) ·
Summers in Sumner are warm, with July highs around 89°F (32°C), while winters are frigid with January lows of 19°F (-7°C). Humidity pushes the summer feels-like temperature to around 106°F (41°C). Expect around 66 rainy days annually (45.3 in / 1152 mm total), with snow on 5 days and 28 in (709 mm) of annual accumulation. The city averages 125 sunny days per year and around 49 thunderstorm days.
| Temperature | 89°F (32°C) high | 19°F (-7°C) low |
| Feels like | 106°F (41°C) high | 13°F (-11°C) low |
| Rain | 66 days | 45.3 in (1152 mm) /yr |
| Snow | 5 days | 27.9 in (709 mm) /yr |
| Sky | 125 sunny | 49 stormy |
| Wind | 2.3 mph (1.0 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 (%)
49
Jan 62
Feb 55
Mar 64
Apr 66
May 58
Jun 58
Jul 43
Aug 34
Sep 44
Oct 53
Nov 65
Dec Humidity (%)
69
Jan 68
Feb 54
Mar 61
Apr 64
May 68
Jun 74
Jul 68
Aug 62
Sep 67
Oct 68
Nov 72
Dec Weather Days by Month
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 50 mi Evansville Regional Airport (EVV)
Ski resort 151 mi Hidden Valley
National park 46 mi Shakamak State Park
Mountain peak
(4,938 ft) 312 mi Gregory Bald
Hospital 9 mi Lawrence County Memorial Hospital
Hiking trail 53 mi ADT - Indiana (South) - H - Seg 6
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 35°F 1°C | 19°F -7°C | 1.3 in 33 mm | 13.2 in336 mm | 12 |
| February | 44°F 7°C | 27°F -3°C | 3.4 in 87 mm | 6.2 in158 mm | 9 |
| March | 64°F 18°C | 42°F 5°C | 4.0 in 101 mm | 0.5 in12 mm | 10 |
| April | 69°F 21°C | 49°F 10°C | 7.8 in 198 mm | — | 5 |
| May | 75°F 24°C | 58°F 14°C | 4.7 in 120 mm | — | 7 |
| June | 85°F 30°C | 70°F 21°C | 5.3 in 135 mm | — | 8 |
| July | 89°F 32°C | 74°F 23°C | 6.6 in 167 mm | — | 11 |
| August | 84°F 29°C | 66°F 19°C | 1.3 in 32 mm | — | 15 |
| September | 83°F 29°C | 59°F 15°C | 2.9 in 74 mm | — | 18 |
| October | 71°F 21°C | 51°F 10°C | 3.2 in 81 mm | — | 16 |
| November | 56°F 13°C | 39°F 4°C | 3.7 in 94 mm | 2.2 in56 mm | 9 |
| December | 45°F 7°C | 30°F -1°C | 1.2 in 29 mm | 5.8 in148 mm | 5 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 12 | 0 |
| February | 9 | 3 |
| March | 10 | 4 |
| April | 5 | 6 |
| May | 7 | 4 |
| June | 8 | 9 |
| July | 11 | 10 |
| August | 15 | 3 |
| September | 18 | 3 |
| October | 16 | 3 |
| November | 9 | 3 |
| December | 5 | 1 |