Carthage, Illinois Climate
United States
Pop. 2,545 Elev. 206 m / 676 ft
TZ: America/Chicago (UTC-5) ·
Dry and hot, Carthage sees July highs of 90°F (32°C) and cold January lows of 17°F (-8°C). Humidity pushes the summer feels-like temperature to 104°F (40°C), while wind chill can drive winter lows to 10°F (-12°C). Expect around 38 rainy days annually (26.5 in / 672 mm total), with snow on 4 days and 31 in (776 mm) of annual accumulation. The city averages 127 sunny days per year and around 28 thunderstorm days. Nearby lake water reaches 80°F (27°C) in summer.
| Temperature | 90°F (32°C) high | 17°F (-8°C) low |
| Feels like | 104°F (40°C) high | 10°F (-12°C) low |
| Rain | 38 days | 26.5 in (672 mm) /yr |
| Snow | 4 days | 30.5 in (776 mm) /yr |
| Sky | 127 sunny | 28 stormy |
| Wind | 2.3 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, May, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
47
Jan 58
Feb 49
Mar 66
Apr 53
May 51
Jun 63
Jul 48
Aug 43
Sep 45
Oct 50
Nov 67
Dec Humidity (%)
63
Jan 64
Feb 57
Mar 60
Apr 55
May 66
Jun 69
Jul 67
Aug 53
Sep 58
Oct 64
Nov 76
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 25 mi Southeast Iowa Regional Airport (BRL)
Ski resort 132 mi Hidden Valley
National park 179 mi Pikes Peak State Park
Hospital 1 mi Memorial Hospital
Hiking trail 49 mi
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 33°F 1°C | 17°F -8°C | 0.5 in 12 mm | 5.1 in129 mm | 12 |
| February | 38°F 3°C | 22°F -6°C | 0.1 in 3 mm | 3.7 in94 mm | 8 |
| March | 61°F 16°C | 38°F 3°C | 2.8 in 71 mm | 5.1 in129 mm | 13 |
| April | 67°F 19°C | 46°F 8°C | 4.5 in 115 mm | 0.0 in1 mm | 6 |
| May | 75°F 24°C | 54°F 12°C | 2.7 in 68 mm | — | 12 |
| June | 86°F 30°C | 67°F 19°C | 5.3 in 135 mm | — | 11 |
| July | 90°F 32°C | 72°F 22°C | 4.0 in 100 mm | — | 7 |
| August | 85°F 29°C | 66°F 19°C | 1.8 in 46 mm | — | 13 |
| September | 85°F 29°C | 59°F 15°C | 0.8 in 20 mm | — | 12 |
| October | 73°F 23°C | 52°F 11°C | 1.5 in 38 mm | — | 15 |
| November | 55°F 13°C | 37°F 3°C | 1.2 in 30 mm | 9.3 in237 mm | 12 |
| December | 38°F 4°C | 22°F -6°C | 1.3 in 34 mm | 7.3 in186 mm | 6 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 12 | 1 |
| February | 8 | 0 |
| March | 13 | 3 |
| April | 6 | 4 |
| May | 12 | 2 |
| June | 11 | 3 |
| July | 7 | 6 |
| August | 13 | 3 |
| September | 12 | 1 |
| October | 15 | 2 |
| November | 12 | 2 |
| December | 6 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 40°F 5°C |
| April | 52°F 11°C |
| May | 61°F 16°C |
| June | 72°F 22°C |
| July | 80°F 27°C |
| August | 76°F 25°C |
| September | 69°F 21°C |
| October | 62°F 17°C |
| November | 45°F 7°C |
| December | 32°F 0°C |