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| Weather Observations for Champaign-Urbana, Illinois | ||||||||||||||||||||||||||||
| Illinois State Water Survey, Prairie Research Institute, University of Illinois | ||||||||||||||||||||||||||||
| Annual 2015 | NORMALS | |||||||||||||||||||||||||||
| High | Depart | Low | Depart | Mean | Depart | Precipitation | Depart | Snowfall | Depart | HDD | Depart | CDD | Depart | High | Low | Mean | Precipitation | Snowfall | HDD | CDD | ||||||||
| January | 32.2 | -0.7 | 16.5 | -0.2 | 24.6 | -0.2 | 1.43 | -0.62 | 4.4 | -2.4 | 1253 | -3 | 0 | 0 | 32.9 | 16.7 | 24.8 | 2.05 | 6.8 | 1256 | 0 | |||||||
| February | 27.9 | -9.8 | 9.0 | -11.2 | 18.8 | -10.3 | 1.23 | -0.90 | 12.4 | 6.6 | 1295 | 286 | 0 | 0 | 37.7 | 20.2 | 29.0 | 2.13 | 5.8 | 1009 | 0 | |||||||
| March | 47.4 | -2.5 | 27.4 | -2.6 | 37.6 | -2.4 | 1.70 | -1.16 | 8.4 | 5.8 | 849 | 72 | 0 | -1 | 49.9 | 30.0 | 40.0 | 2.86 | 2.6 | 777 | 1 | |||||||
| April | 64.7 | 1.9 | 42.9 | 1.8 | 54.0 | 2.1 | 3.62 | -0.06 | 0.0 | -0.4 | 331 | -71 | 1 | -9 | 62.8 | 41.1 | 51.9 | 3.68 | 0.4 | 402 | 10 | |||||||
| May | 76.2 | 2.8 | 54.8 | 3.2 | 65.7 | 3.2 | 6.07 | 1.18 | 0.0 | 0.0 | 97 | -49 | 118 | 49 | 73.4 | 51.6 | 62.5 | 4.89 | 0.0 | 146 | 69 | |||||||
| June | 81.2 | -1.3 | 62.7 | 0.8 | 72.2 | 0.0 | 9.16 | 4.82 | 0.0 | 0.0 | 8 | -9 | 224 | -9 | 82.5 | 61.9 | 72.2 | 4.34 | 0.0 | 17 | 233 | |||||||
| July | 82.9 | -2.1 | 64.0 | -0.9 | 73.6 | -1.3 | 4.22 | -0.48 | 0.0 | 0.0 | 2 | 1 | 270 | -39 | 85.0 | 64.9 | 74.9 | 4.70 | 0.0 | 1 | 309 | |||||||
| August | 82.5 | -1.2 | 61.1 | -2.0 | 72.1 | -1.3 | 3.16 | -0.77 | 0.0 | 0.0 | 3 | -2 | 223 | -42 | 83.7 | 63.1 | 73.4 | 3.93 | 0.0 | 5 | 265 | |||||||
| September | 81.6 | 3.4 | 58.0 | 3.8 | 70.0 | 3.8 | 6.44 | 3.31 | 0.0 | 0.0 | 30 | -49 | 181 | 66 | 78.2 | 54.2 | 66.2 | 3.13 | 0.0 | 79 | 115 | |||||||
| October | 67.4 | 2.2 | 44.9 | 2.3 | 56.4 | 2.5 | 1.24 | -2.02 | 0.0 | -0.1 | 271 | -87 | 5 | -9 | 65.2 | 42.6 | 53.9 | 3.26 | 0.1 | 358 | 14 | |||||||
| November | 56.1 | 5.5 | 35.3 | 3.3 | 45.9 | 4.6 | 4.41 | 0.73 | 1.8 | 0.9 | 573 | -138 | 0 | 0 | 50.6 | 32.0 | 41.3 | 3.68 | 0.9 | 711 | 0 | |||||||
| December | 46.9 | 10.2 | 33.3 | 12.1 | 40.4 | 11.5 | 7.47 | 4.74 | 0.0 | -6.6 | 764 | -353 | 0 | 0 | 36.7 | 21.2 | 28.9 | 2.73 | 6.6 | 1117 | 0 | |||||||
| Annual | 62.2 | 0.7 | 42.5 | 0.9 | 52.6 | 1.0 | 50.15 | 8.77 | 27.0 | 3.8 | 5476 | -402 | 1022 | 6 | 61.6 | 41.6 | 51.6 | 41.38 | 23.2 | 5878 | 1016 | |||||||
| Winter | 26.1 | 6186 | ||||||||||||||||||||||||||
| Spring | 62.7 | 0.7 | 41.7 | 0.8 | 52.4 | 1.0 | 11.39 | -0.04 | 8.4 | 5.4 | 1277 | -48 | 119 | 39 | ||||||||||||||
| Summer | 82.2 | -1.5 | 62.6 | -0.7 | 72.6 | -0.9 | 16.54 | 3.57 | 0.0 | 0.0 | 13 | -10 | 717 | -90 | ||||||||||||||
| Fall | 68.4 | 3.7 | 46.1 | 3.1 | 57.5 | 3.7 | ||||||||||||||||||||||
| Notes: | ||||||||||||||||||||||||||||
| Temperatures are from midnight to midnight (calendar day) and are in degrees Fahrenheit | ||||||||||||||||||||||||||||
| Precipitation and snowfall are measured at 8 am and represent the previous 24 hours, T means a trace of precipitation | ||||||||||||||||||||||||||||
| Time is always Central Standard Time (CST) | ||||||||||||||||||||||||||||
| Heating and cooling degree days use a base temperature of 65°F | ||||||||||||||||||||||||||||
| Normal refers to the new 1981-2010 average | ||||||||||||||||||||||||||||
| Winter season for snowfall and heating degree days starts on July 1, 2014, and ends on June 30, 2015. | ||||||||||||||||||||||||||||
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