Galesburg, Illinois Climate
United States
Pop. 31,273 Elev. 237 m / 778 ft
TZ: America/Chicago (UTC-5) ·
Galesburg has a dry climate with warm summers reaching 88°F (31°C) in July and cold winters averaging 16°F (-9°C) in January. Humidity pushes the summer feels-like temperature to 100°F (38°C), while wind chill can drive winter lows to 8°F (-13°C). Rain falls on about 38 days per year (27.4 in / 696 mm total), with snow on 4 days and 31 in (775 mm) of annual accumulation. The city averages 130 sunny days per year and around 28 thunderstorm days. Nearby lake water reaches 81°F (27°C) in summer.
| Temperature | 88°F (31°C) high | 16°F (-9°C) low |
| Feels like | 100°F (38°C) high | 8°F (-14°C) low |
| Rain | 38 days | 27.4 in (696 mm) /yr |
| Snow | 4 days | 30.5 in (775 mm) /yr |
| Sky | 130 sunny | 28 stormy |
| Wind | 2.7 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
50
Jan 59
Feb 51
Mar 67
Apr 55
May 53
Jun 65
Jul 51
Aug 40
Sep 45
Oct 52
Nov 70
Dec Humidity (%)
62
Jan 65
Feb 59
Mar 61
Apr 56
May 61
Jun 70
Jul 71
Aug 56
Sep 58
Oct 64
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 35 mi Quad City International Airport (MLI)
Ski resort 95 mi Chestnut Mountain Resort
National park 149 mi Pikes Peak State Park
Hospital 1 mi Galesburg Cottage Hospital (closed)
Hiking trail 38 mi ADT - Illinois - I - Seg 3
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 32°F 0°C | 16°F -9°C | 0.6 in 15 mm | 3.8 in96 mm | 14 |
| February | 36°F 2°C | 21°F -6°C | 0.2 in 5 mm | 4.6 in116 mm | 8 |
| March | 59°F 15°C | 37°F 3°C | 3.5 in 88 mm | 6.1 in156 mm | 13 |
| April | 65°F 18°C | 45°F 7°C | 3.5 in 89 mm | — | 5 |
| May | 74°F 23°C | 53°F 12°C | 3.0 in 75 mm | — | 11 |
| June | 87°F 31°C | 67°F 19°C | 3.1 in 80 mm | — | 10 |
| July | 88°F 31°C | 71°F 22°C | 5.4 in 137 mm | — | 7 |
| August | 82°F 28°C | 64°F 18°C | 2.9 in 75 mm | — | 15 |
| September | 83°F 28°C | 58°F 14°C | 0.9 in 24 mm | — | 16 |
| October | 71°F 22°C | 50°F 10°C | 1.6 in 40 mm | — | 16 |
| November | 53°F 11°C | 36°F 2°C | 1.3 in 34 mm | 8.3 in210 mm | 10 |
| December | 36°F 2°C | 20°F -7°C | 1.4 in 37 mm | 7.8 in198 mm | 5 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 1 |
| February | 8 | 0 |
| March | 13 | 4 |
| April | 5 | 2 |
| May | 11 | 2 |
| June | 10 | 2 |
| July | 7 | 7 |
| August | 15 | 3 |
| September | 16 | 2 |
| October | 16 | 2 |
| November | 10 | 2 |
| December | 5 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 38°F 4°C |
| April | 50°F 10°C |
| May | 60°F 16°C |
| June | 72°F 22°C |
| July | 81°F 27°C |
| August | 76°F 24°C |
| September | 68°F 20°C |
| October | 61°F 16°C |
| November | 45°F 7°C |
| December | 33°F 1°C |