Georgetown, Illinois Climate
United States
Pop. 3,493 Elev. 276 m / 906 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, Georgetown sees July highs of 84°F (29°C) and cold January lows of 14°F (-10°C). Humidity pushes the summer feels-like temperature to 93°F (34°C), while wind chill can drive winter lows to 5°F (-15°C). Expect around 40 rainy days annually (29.0 in / 736 mm total), with snow on 5 days and 35 in (879 mm) of annual accumulation. The city averages 120 sunny days per year and around 29 thunderstorm days. Nearby lake water reaches 77°F (25°C) in summer.
| Temperature | 84°F (29°C) high | 14°F (-10°C) low |
| Feels like | 93°F (34°C) high | 5°F (-15°C) low |
| Rain | 40 days | 29.0 in (736 mm) /yr |
| Snow | 5 days | 34.6 in (879 mm) /yr |
| Sky | 120 sunny | 29 stormy |
| Wind | 2.3 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Sep, Oct
Sky & Air by Month
Cloud cover (%)
51
Jan 62
Feb 55
Mar 67
Apr 56
May 53
Jun 59
Jul 53
Aug 41
Sep 45
Oct 56
Nov 76
Dec Humidity (%)
61
Jan 65
Feb 60
Mar 60
Apr 59
May 66
Jun 75
Jul 74
Aug 67
Sep 65
Oct 67
Nov 77
Dec Weather Days by Month
Water Temperatures
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Nearby
Commercial airport 38 mi Chicago Rockford International Airport (RFD)
Ski resort 32 mi Chestnut Mountain Resort
National park 91 mi Pikes Peak State Park
Hospital 14 mi MercyHealth FHN Memorial Hospital
Hiking trail 17 mi Mississippi Palisades State Park Trails south
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 30°F -1°C | 14°F -10°C | 0.3 in 7 mm | 2.0 in50 mm | 14 |
| February | 33°F 0°C | 17°F -8°C | 0.2 in 5 mm | 7.3 in184 mm | 6 |
| March | 56°F 13°C | 33°F 1°C | 3.0 in 76 mm | 7.8 in198 mm | 10 |
| April | 61°F 16°C | 42°F 5°C | 3.1 in 78 mm | 0.0 in1 mm | 4 |
| May | 71°F 21°C | 50°F 10°C | 3.2 in 80 mm | — | 12 |
| June | 84°F 29°C | 64°F 18°C | 5.1 in 129 mm | — | 10 |
| July | 84°F 29°C | 68°F 20°C | 5.7 in 144 mm | — | 9 |
| August | 80°F 26°C | 62°F 17°C | 3.5 in 88 mm | — | 13 |
| September | 78°F 26°C | 56°F 13°C | 1.5 in 38 mm | — | 15 |
| October | 67°F 19°C | 48°F 9°C | 1.6 in 41 mm | — | 12 |
| November | 49°F 9°C | 34°F 1°C | 0.8 in 21 mm | 10.7 in272 mm | 11 |
| December | 32°F 0°C | 18°F -8°C | 1.2 in 30 mm | 6.9 in174 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 0 |
| February | 6 | 0 |
| March | 10 | 3 |
| April | 4 | 2 |
| May | 12 | 1 |
| June | 10 | 6 |
| July | 9 | 7 |
| August | 13 | 5 |
| September | 15 | 3 |
| October | 12 | 1 |
| November | 11 | 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 |