Olney, Illinois Climate
United States
Pop. 9,005 Elev. 145 m / 476 ft
TZ: America/Chicago (UTC-5) ·
Olney has warm summers with average highs of 89°F (32°C) in July, and frigid winters averaging 19°F (-7°C) in January. Humidity pushes the summer feels-like temperature to around 106°F (41°C). Rain falls on about 66 days per year (43.1 in / 1095 mm total), with snow on 5 days and 27 in (676 mm) of annual accumulation. The city averages 127 sunny days per year and around 44 thunderstorm days.
| Temperature | 89°F (32°C) high | 19°F (-7°C) low |
| Feels like | 106°F (41°C) high | 13°F (-10°C) low |
| Rain | 66 days | 43.1 in (1095 mm) /yr |
| Snow | 5 days | 26.6 in (676 mm) /yr |
| Sky | 127 sunny | 44 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, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
49
Jan 62
Feb 54
Mar 63
Apr 65
May 58
Jun 58
Jul 43
Aug 35
Sep 44
Oct 53
Nov 64
Dec Humidity (%)
67
Jan 67
Feb 53
Mar 61
Apr 62
May 67
Jun 74
Jul 67
Aug 61
Sep 66
Oct 67
Nov 71
Dec Weather Days by Month
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 57 mi Evansville Regional Airport (EVV)
Ski resort 139 mi Hidden Valley
National park 55 mi Shakamak State Park
Mountain peak
(5,125 ft) 325 mi Little Haw Knob
Hospital 1 mi Carle Richland Memorial Hospital
Hiking trail 56 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 2°C | 19°F -7°C | 1.3 in 32 mm | 12.8 in325 mm | 13 |
| February | 44°F 7°C | 27°F -3°C | 3.2 in 82 mm | 5.9 in151 mm | 9 |
| March | 64°F 18°C | 42°F 6°C | 3.8 in 96 mm | 0.4 in10 mm | 10 |
| April | 70°F 21°C | 50°F 10°C | 7.5 in 191 mm | — | 5 |
| May | 75°F 24°C | 58°F 14°C | 4.7 in 119 mm | — | 7 |
| June | 86°F 30°C | 70°F 21°C | 4.9 in 125 mm | — | 9 |
| July | 89°F 32°C | 74°F 23°C | 6.0 in 154 mm | — | 9 |
| August | 85°F 29°C | 66°F 19°C | 1.1 in 27 mm | — | 15 |
| September | 84°F 29°C | 60°F 15°C | 3.1 in 78 mm | — | 18 |
| October | 71°F 22°C | 51°F 10°C | 3.0 in 77 mm | — | 18 |
| November | 56°F 13°C | 39°F 4°C | 3.5 in 89 mm | 2.2 in56 mm | 9 |
| December | 45°F 7°C | 31°F -1°C | 1.1 in 27 mm | 5.3 in134 mm | 5 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 0 |
| February | 9 | 3 |
| March | 10 | 3 |
| April | 5 | 6 |
| May | 7 | 5 |
| June | 9 | 7 |
| July | 9 | 10 |
| August | 15 | 1 |
| September | 18 | 3 |
| October | 18 | 3 |
| November | 9 | 3 |
| December | 5 | 0 |