Trenton, Illinois Climate
United States
Pop. 2,667 Elev. 152 m / 499 ft
TZ: America/Chicago (UTC-5) ·
Trenton sees warm summers peaking at 90°F (32°C) in July, and frigid winters that bottom out around 21°F (-6°C) in January. Humidity pushes the summer feels-like temperature to around 108°F (42°C). Precipitation occurs on roughly 66 days per year (44.1 in / 1120 mm total), with snow on 5 days and 25 in (630 mm) of annual accumulation. The city averages 127 sunny days per year and around 48 thunderstorm days. Nearby lake water reaches 82°F (28°C) in summer.
| Temperature | 90°F (32°C) high | 21°F (-6°C) low |
| Feels like | 108°F (42°C) high | 16°F (-9°C) low |
| Rain | 66 days | 44.1 in (1120 mm) /yr |
| Snow | 5 days | 24.8 in (630 mm) /yr |
| Sky | 127 sunny | 48 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 (%)
48
Jan 60
Feb 51
Mar 66
Apr 64
May 57
Jun 59
Jul 46
Aug 41
Sep 42
Oct 53
Nov 58
Dec Humidity (%)
63
Jan 63
Feb 49
Mar 60
Apr 63
May 70
Jun 74
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 9 mi Scott AFB/Midamerica Airport (BLV)
Ski resort 53 mi Hidden Valley
National park 65 mi Emmett Till and Mamie Till-Mobley National Monument
Hospital 10 mi Saint Joseph's Hospital
Hiking trail 35 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 | 37°F 3°C | 21°F -6°C | 1.2 in 30 mm | 11.0 in280 mm | 13 |
| February | 45°F 7°C | 28°F -2°C | 1.4 in 34 mm | 8.2 in207 mm | 9 |
| March | 66°F 19°C | 43°F 6°C | 2.9 in 73 mm | 0.3 in7 mm | 12 |
| April | 71°F 22°C | 51°F 10°C | 6.1 in 156 mm | 0.0 in0 mm | 6 |
| May | 75°F 24°C | 58°F 14°C | 5.4 in 137 mm | — | 9 |
| June | 86°F 30°C | 70°F 21°C | 6.6 in 168 mm | — | 9 |
| July | 90°F 32°C | 74°F 24°C | 5.3 in 135 mm | — | 8 |
| August | 86°F 30°C | 66°F 19°C | 0.8 in 21 mm | — | 14 |
| September | 84°F 29°C | 60°F 15°C | 6.9 in 174 mm | — | 14 |
| October | 72°F 22°C | 52°F 11°C | 4.0 in 101 mm | — | 17 |
| November | 58°F 14°C | 41°F 5°C | 2.9 in 73 mm | 3.3 in83 mm | 10 |
| December | 46°F 8°C | 31°F -1°C | 0.7 in 18 mm | 2.1 in52 mm | 6 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 1 |
| February | 9 | 1 |
| March | 12 | 4 |
| April | 6 | 8 |
| May | 9 | 6 |
| June | 9 | 9 |
| July | 8 | 8 |
| August | 14 | 2 |
| September | 14 | 4 |
| October | 17 | 2 |
| November | 10 | 3 |
| December | 6 | 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 |