Assumption, Illinois Climate
United States
Pop. 1,116 Elev. 196 m / 643 ft
TZ: America/Chicago (UTC-5) ·
Summers in Assumption are warm, with July highs around 87°F (31°C), while winters are frigid with January lows of 17°F (-8°C). Humidity pushes the summer feels-like temperature to 102°F (39°C), while wind chill can drive winter lows to 10°F (-12°C). Expect around 52 rainy days annually (35.4 in / 900 mm total), with snow on 7 days and 30 in (768 mm) of annual accumulation. The city averages 129 sunny days per year and around 34 thunderstorm days. Nearby lake water reaches 82°F (28°C) in summer.
| Temperature | 87°F (31°C) high | 17°F (-8°C) low |
| Feels like | 102°F (39°C) high | 10°F (-12°C) low |
| Rain | 52 days | 35.4 in (900 mm) /yr |
| Snow | 7 days | 30.3 in (768 mm) /yr |
| Sky | 129 sunny | 34 stormy |
| Wind | 2.6 mph (1.2 m/s) avg |
Looking for a place with a climate like Assumption? Explore and filter 150,000+ cities worldwide.
Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
50
Jan 60
Feb 52
Mar 67
Apr 61
May 58
Jun 61
Jul 45
Aug 33
Sep 44
Oct 51
Nov 66
Dec Humidity (%)
69
Jan 65
Feb 55
Mar 62
Apr 65
May 72
Jun 78
Jul 72
Aug 62
Sep 64
Oct 67
Nov 77
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 24 mi Decatur Airport (DEC)
Ski resort 110 mi Hidden Valley
National park 117 mi Emmett Till and Mamie Till-Mobley National Monument
Hospital 10 mi Pana Community Hospital
Hiking trail 21 mi Bluestem Loop
Interested in Assumption?
Hotels
Flights
Real Estate
Insurance
Connectivity
Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 33°F 0°C | 17°F -8°C | 0.6 in 14 mm | 10.0 in254 mm | 13 |
| February | 41°F 5°C | 25°F -4°C | 0.6 in 15 mm | 5.7 in144 mm | 8 |
| March | 63°F 17°C | 40°F 4°C | 2.8 in 71 mm | 0.8 in21 mm | 12 |
| April | 68°F 20°C | 47°F 8°C | 5.5 in 140 mm | 0.0 in0 mm | 4 |
| May | 74°F 23°C | 55°F 13°C | 4.2 in 107 mm | — | 6 |
| June | 84°F 29°C | 68°F 20°C | 6.6 in 168 mm | — | 8 |
| July | 87°F 31°C | 72°F 22°C | 7.3 in 184 mm | — | 6 |
| August | 83°F 28°C | 65°F 18°C | 0.9 in 23 mm | — | 17 |
| September | 83°F 28°C | 57°F 14°C | 2.0 in 51 mm | — | 20 |
| October | 71°F 21°C | 50°F 10°C | 2.1 in 53 mm | — | 18 |
| November | 54°F 12°C | 37°F 3°C | 2.1 in 53 mm | 6.6 in168 mm | 11 |
| December | 41°F 5°C | 25°F -4°C | 0.9 in 22 mm | 7.1 in181 mm | 6 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 0 |
| February | 8 | 0 |
| March | 12 | 2 |
| April | 4 | 7 |
| May | 6 | 4 |
| June | 8 | 6 |
| July | 6 | 9 |
| August | 17 | 1 |
| September | 20 | 2 |
| October | 18 | 2 |
| November | 11 | 1 |
| December | 6 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 33°F 1°C |
| February | 33°F 0°C |
| March | 48°F 9°C |
| April | 58°F 14°C |
| May | 65°F 18°C |
| June | 76°F 24°C |
| July | 82°F 28°C |
| August | 77°F 25°C |
| September | 71°F 22°C |
| October | 62°F 17°C |
| November | 46°F 8°C |
| December | 34°F 1°C |