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Clear
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Updated:11:55am CDT | |
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91°F
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Wind Spd:12.66 mph | |
| Wind Dir:SW (230°) | ||
| Pressure:29.94 in | ||
| Dewpoint:62°F | ||
| Feels Like:97°F | ||
| Metric (°C) | Visibility:10.00 mi |
7-day Forecast / 10-day Forecast
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Latitude: 41°55'N,
Longitude: 88°44'W,
Elevation: 900.0 ft,
Distance: 2.25 mi
Dekalb, IL Averages »
| Unit | Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Average temperature over 59 years |
°F | 48 | 21 | 24 | 35 | 46 | 57 | 68 | 73 | 71 | 62 | 51 | 37 | 24 |
| Average high temperature over 59 years |
°F | 59 | 31 | 33 | 44 | 59 | 71 | 80 | 86 | 84 | 75 | 64 | 46 | 34 |
| Average low temperature over 60 years |
°F | 37 | 12 | 15 | 24 | 36 | 46 | 55 | 60 | 59 | 51 | 39 | 28 | 17 |
| Highest recorded temperature over 67 years |
°F | 109 | 62 | 66 | 84 | 91 | 107 | 105 | 109 | 104 | 100 | 93 | 82 | 66 |
| Lowest recorded temperature over 66 years |
°F | -25 | -25 | -25 | -13 | 14 | 24 | 33 | 39 | 35 | 21 | 10 | -9 | -23 |
| Average number of rainy days over 79 years |
days | 65.2 | 4.1 | 3.9 | 5.6 | 6.2 | 6.8 | 7.1 | 6.3 | 6.3 | 5.7 | 4.9 | 4 | 4.3 |
| Average number of days above 90°F over 10 years |
days | 23 | - | - | - | - | 1 | 6 | 7 | 6 | 3 | - | - | - |
| Average precipitation over 79 years |
in | 34.9 | 1.7 | 1.6 | 2.6 | 3.1 | 4.0 | 4.3 | 3.5 | 3.6 | 3.5 | 2.9 | 2.3 | 1.8 |
| Average relative humidity over 12 years |
% | 72 | 77 | 76 | 75 | 67 | 66 | 68 | 71 | 74 | 72 | 71 | 74 | 77 |
| Average dew point over 12 years |
°F | 39 | 14 | 19 | 24 | 36 | 46 | 57 | 62 | 60 | 53 | 42 | 30 | 17 |
| Average number of days below 32°F over 9 years |
days | 152.3 | 30 | 27 | 27 | 11 | 1 | - | - | - | 0.3 | 6 | 21 | 29 |
| Average number of days below 0°F over 12 years |
days | 16.3 | 7.7 | 3.1 | 0.4 | - | - | - | - | - | - | - | 0.3 | 4.8 |
| Average snowfall over 63 years |
in | 30.4 | 7.6 | 7.2 | 5.4 | 0.9 | - | - | - | - | - | 0.2 | 2.2 | 6.9 |
Check weather averages for nearby locations (some locations might offer more data):
Average temperature of May: 57°F.
Average high temperature: 71°F.
Average low temperature: 46°F.
Dekalb, IL Averages »
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