Mount Morris, Illinois Climate
United States
Pop. 2,877 Elev. 281 m / 922 ft
TZ: America/Chicago (UTC-5) ·
Mount Morris is largely arid, with warm summers peaking at 85°F (29°C) in July and cold winters around 15°F (-9°C) in January. Humidity pushes the summer feels-like temperature to 94°F (34°C), while wind chill can drive winter lows to 6°F (-14°C). Precipitation occurs on roughly 43 days per year (31.4 in / 799 mm total), with snow on 5 days and 35 in (878 mm) of annual accumulation. The city averages 116 sunny days per year and around 33 thunderstorm days. Nearby lake water reaches 77°F (25°C) in summer.
| Temperature | 85°F (29°C) high | 15°F (-10°C) low |
| Feels like | 94°F (35°C) high | 6°F (-15°C) low |
| Rain | 43 days | 31.4 in (799 mm) /yr |
| Snow | 5 days | 34.6 in (878 mm) /yr |
| Sky | 116 sunny | 33 stormy |
| Wind | 2.5 mph (1.1 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Sep, Oct
Sky & Air by Month
Cloud cover (%)
52
Jan 62
Feb 54
Mar 67
Apr 57
May 53
Jun 60
Jul 53
Aug 39
Sep 45
Oct 56
Nov 75
Dec Humidity (%)
61
Jan 66
Feb 59
Mar 59
Apr 59
May 65
Jun 74
Jul 74
Aug 65
Sep 63
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 20 mi Chicago Rockford International Airport (RFD)
Ski resort 53 mi Chestnut Mountain Resort
National park 97 mi Historic Pullman Foundation Exhibit Hall
Hospital 14 mi Katherine Shaw Bethea Hospital
Hiking trail 6 mi Timber Edge
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 30°F -1°C | 15°F -10°C | 1.0 in 24 mm | 2.4 in62 mm | 14 |
| February | 33°F 1°C | 17°F -8°C | 0.1 in 4 mm | 6.9 in176 mm | 6 |
| March | 56°F 13°C | 34°F 1°C | 3.6 in 91 mm | 7.2 in183 mm | 11 |
| April | 62°F 17°C | 43°F 6°C | 3.4 in 87 mm | 0.0 in0 mm | 4 |
| May | 71°F 22°C | 51°F 10°C | 3.3 in 84 mm | — | 11 |
| June | 84°F 29°C | 65°F 18°C | 4.2 in 107 mm | — | 10 |
| July | 85°F 29°C | 69°F 21°C | 5.8 in 147 mm | — | 7 |
| August | 80°F 27°C | 63°F 17°C | 4.3 in 110 mm | — | 12 |
| September | 79°F 26°C | 56°F 14°C | 1.5 in 38 mm | — | 16 |
| October | 68°F 20°C | 49°F 9°C | 1.6 in 42 mm | — | 12 |
| November | 50°F 10°C | 34°F 1°C | 1.1 in 27 mm | 10.8 in273 mm | 9 |
| December | 33°F 0°C | 18°F -8°C | 1.5 in 39 mm | 7.2 in183 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 1 |
| February | 6 | 0 |
| March | 11 | 5 |
| April | 4 | 1 |
| May | 11 | 2 |
| June | 10 | 5 |
| July | 7 | 8 |
| August | 12 | 6 |
| September | 16 | 3 |
| October | 12 | 1 |
| November | 9 | 0 |
| December | 4 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 38°F 3°C |
| April | 49°F 9°C |
| May | 58°F 15°C |
| June | 70°F 21°C |
| July | 77°F 25°C |
| August | 74°F 23°C |
| September | 67°F 19°C |
| October | 59°F 15°C |
| November | 42°F 6°C |
| December | 32°F 0°C |