Marissa, Illinois Climate
United States
Pop. 1,856 Elev. 140 m / 459 ft
TZ: America/Chicago (UTC-5) ·
Marissa has warm summers with average highs of 90°F (32°C) in July, and frigid winters averaging 23°F (-5°C) in January. Humidity pushes the summer feels-like temperature to around 108°F (42°C). Rain falls on about 63 days per year (44.9 in / 1140 mm total), with snow on 4 days and 23 in (574 mm) of annual accumulation. The city averages 132 sunny days per year and around 45 thunderstorm days. Nearby lake water reaches 82°F (28°C) in summer.
| Temperature | 90°F (32°C) high | 23°F (-5°C) low |
| Feels like | 108°F (42°C) high | 18°F (-8°C) low |
| Rain | 63 days | 44.9 in (1140 mm) /yr |
| Snow | 4 days | 22.6 in (574 mm) /yr |
| Sky | 132 sunny | 45 stormy |
| Wind | 2.2 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Aug, Oct
Sky & Air by Month
Cloud cover (%)
47
Jan 61
Feb 52
Mar 65
Apr 65
May 56
Jun 58
Jul 45
Aug 41
Sep 41
Oct 54
Nov 56
Dec Humidity (%)
62
Jan 65
Feb 49
Mar 61
Apr 65
May 71
Jun 75
Jul 67
Aug 62
Sep 66
Oct 66
Nov 69
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 21 mi Scott AFB/Midamerica Airport (BLV)
Ski resort 53 mi Hidden Valley
National park 50 mi Emmett Till and Mamie Till-Mobley National Monument
Hospital 9 mi Sparta Community Hospital
Hiking trail 12 mi ADT - Illinois (South) - J - Seg 3
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 38°F 3°C | 23°F -5°C | 1.7 in 42 mm | 8.6 in219 mm | 13 |
| February | 45°F 7°C | 28°F -2°C | 1.9 in 47 mm | 8.3 in210 mm | 8 |
| March | 66°F 19°C | 43°F 6°C | 2.6 in 66 mm | 0.2 in6 mm | 12 |
| April | 71°F 22°C | 51°F 10°C | 6.4 in 162 mm | 0.0 in0 mm | 6 |
| May | 75°F 24°C | 58°F 15°C | 5.0 in 128 mm | — | 9 |
| June | 86°F 30°C | 70°F 21°C | 6.8 in 174 mm | — | 9 |
| July | 90°F 32°C | 74°F 24°C | 5.1 in 129 mm | — | 9 |
| August | 86°F 30°C | 67°F 19°C | 0.8 in 20 mm | — | 15 |
| September | 85°F 29°C | 60°F 16°C | 6.4 in 162 mm | — | 14 |
| October | 72°F 22°C | 53°F 11°C | 4.7 in 119 mm | — | 18 |
| November | 59°F 15°C | 41°F 5°C | 2.9 in 73 mm | 3.4 in86 mm | 10 |
| December | 47°F 8°C | 31°F 0°C | 0.7 in 17 mm | 2.1 in53 mm | 9 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 1 |
| February | 8 | 1 |
| March | 12 | 4 |
| April | 6 | 8 |
| May | 9 | 6 |
| June | 9 | 8 |
| July | 9 | 7 |
| August | 15 | 1 |
| September | 14 | 4 |
| October | 18 | 2 |
| November | 10 | 3 |
| December | 9 | 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 |