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Clear
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Updated:1:55pm CDT | |
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91°F
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Wind Spd:5.76 mph | |
| Wind Dir:SSW (200°) | ||
| Pressure:29.95 in | ||
| Dewpoint:59°F | ||
| Feels Like:96°F | ||
| Metric (°C) | Visibility:10.00 mi |
7-day Forecast / 10-day Forecast
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Latitude: 38°33'N,
Longitude: 89°51'W,
Elevation: 443.0 ft,
Distance: 13.66 mi
Trenton, IL Averages »
| Unit | Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Average temperature over 21 years |
°F | 53 | 32 | 33 | 41 | 53 | 64 | 73 | 77 | 75 | 68 | 57 | 42 | 33 |
| Average high temperature over 21 years |
°F | 62 | 37 | 42 | 51 | 64 | 75 | 84 | 87 | 86 | 78 | 68 | 51 | 41 |
| Average low temperature over 21 years |
°F | 44 | 23 | 26 | 32 | 44 | 53 | 64 | 68 | 64 | 57 | 46 | 33 | 28 |
| Highest recorded temperature over 51 years |
°F | 109 | 75 | 80 | 87 | 93 | 96 | 104 | 109 | 104 | 102 | 95 | 84 | 75 |
| Lowest recorded temperature over 51 years |
°F | -18 | -18 | -11 | -2 | 21 | 28 | 44 | 48 | 44 | 26 | 24 | 3 | -7 |
| Average number of rainy days over 51 years |
days | 105 | 8 | 8 | 11 | 11 | 10 | 9 | 8 | 7 | 7 | 8 | 9 | 9 |
| Average precipitation over 21 years |
in | 37.1 | 2.2 | 2.5 | 3.1 | 3.8 | 4.1 | 3.7 | 3.6 | 3.2 | 3.4 | 2.6 | 2.6 | 2.5 |
| Average dew point over 10 years |
°F | 44 | 21 | 24 | 33 | 42 | 53 | 62 | 68 | 64 | 57 | 44 | 36 | 26 |
| Average number of days with thunderstorms over 40 years |
days | 51 | 1 | 1 | 3 | 6 | 7 | 8 | 8 | 7 | 4 | 3 | 2 | 1 |
| Average number of days with fog over 40 years |
days | 168 | 13 | 13 | 14 | 11 | 14 | 12 | 16 | 18 | 16 | 14 | 13 | 14 |
| Average morning relative humidity over 10 years |
% | 75.3 | 71.7 | 74.6 | 74 | 69.5 | 73 | 75 | 78.3 | 79.9 | 79.6 | 77.9 | 75.6 | 74.1 |
| Average evening relative humidity over 10 years |
% | 54.9 | 57.4 | 59.4 | 55.7 | 49.4 | 51.6 | 52.5 | 54.8 | 53.7 | 51.9 | 52.5 | 58.6 | 61.4 |
| Average wind speed over 12 years |
mph | 11.0 | 6.0 | 8.0 | 6.0 | 5.0 | 4.0 | 3.0 | 3.0 | 4.0 | 4.0 | 6.0 | 6.0 | 5.0 |
| Average snowfall over 43 years |
in | 18.2 | 5.4 | 3.9 | 3.4 | 0.6 | - | - | - | - | - | - | 1.4 | 3.1 |
| Most rain reported in a day over 51 years |
in | 9.2 | 3.6 | 3.5 | 2.5 | 2.9 | 3.5 | 8.2 | 5.5 | 9.2 | 3.6 | 4.0 | 6.7 | 3.2 |
| Most rain reported in a month over 51 years |
in | 57.7 | 8.9 | 8.0 | 10.0 | 9.4 | 9.9 | 17.2 | 11.6 | 21.1 | 9.5 | 8.1 | 10.0 | 9.1 |
| Least rain reported in a month over 51 years |
in | 20.6 | 0.1 | 0.3 | - | 1.1 | 1.4 | 0.9 | 0.4 | 0.1 | 0.1 | 0.1 | 0.3 | 0.1 |
| Heating degree days over 50 years |
days | 4727 | 1065 | 851 | 645 | 287 | 88 | 5 | - | 1 | 44 | 236 | 586 | 919 |
| Cooling degree days over 50 years |
days | 1454 | - | - | 3 | 29 | 109 | 307 | 424 | 368 | 176 | 36 | 2 | - |
| Average number of days below 10°F over 51 years |
days | 10 | 5 | 2 | 1 | - | - | - | - | - | - | - | - | 2 |
| Average number of days above 80°F over 12 years |
days | 51 | - | 1 | 4 | 11 | 23 | 29 | 27 | 16 | 6 | 1 | - | 118 |
| Most snow reported in a month over 43 years |
in | 34.3 | 23.2 | 14.0 | 20.4 | 17.3 | - | - | - | - | - | 0.2 | 12.7 | 23.1 |
| Average possibility of clouds over 10 years |
% | 52.3 | 58.7 | 61.5 | 60.8 | 53.5 | 52.4 | 50.1 | 40.8 | 38.8 | 42.5 | 50.7 | 57.5 | 61.6 |
| Average number of snowy days over 43 years |
days | 13 | 4 | 3 | 2 | 1 | - | - | - | - | - | - | 1 | 2 |
| Average number of days below 33°F over 51 years |
days | 98 | 26 | 21 | 14 | 2 | - | - | - | - | - | 1 | 12 | 22 |
| Most snow reported in a day over 43 years |
in | 66.6 | 12.1 | 7.3 | 9.5 | - | - | - | - | - | 0.2 | 10.3 | 13.6 | 13.6 |
| Deepest snow cover reported over 43 years |
in | 20.0 | 16.0 | 18.0 | 16.0 | 11.0 | - | - | - | - | - | - | 20.0 | 13.0 |
| Average wet bulb point over 10 years |
°F | 50 | 28 | 30 | 39 | 48 | 59 | 66 | 71 | 69 | 62 | 51 | 42 | 32 |
Check weather averages for nearby locations (some locations might offer more data):
Average temperature of May: 64°F.
Average high temperature: 75°F.
Average low temperature: 53°F.
Trenton, IL Averages »
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