Romeoville Wfo, Illinois

ID: USC00117457 Latitude: 41.6042 Longitude: -88.0850

Elevation: 660.1 feet ( 201.2 meters)

Source: NOAA Climate Normals 1991-2020

ROMEOVILLE WFO, IL US, STATE_NAME Temperature Chart Daily average maximum and minimum temperatures for ROMEOVILLE WFO, IL US, STATE_NAME Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High & Low Temperature °F °C -30 -34.4 -20 -28.9 -10 -23.3 0 -17.8 10 -12.2 20 -6.7 30 -1.1 40 4.4 50 10.0 60 15.6 70 21.1 80 26.7 90 32.2 100 37.8 110 43.3
ROMEOVILLE WFO, IL US, Illinois Precipitation Chart Precipitation chart for ROMEOVILLE WFO, IL US, Illinois Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Precipitation In. Cm. 0.00 0.00 0.10 0.25 0.20 0.51 0.30 0.76 0.40 1.02 0.50 1.27 0.60 1.52 0.70 1.78 0.80 2.03 0.90 2.29 1.00 2.54 Precipitation Total: 41.14 in., 16.2 cm.
Daylight Chart for Romeoville Wfo Daylight chart for Romeoville Wfo. Latitude 41.6. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Sunrise/Sunset Daylight NOON NOON 0 0 2 2 4 4 6 6 8 8 10 10 12 12 14 2 16 4 18 6 20 8 22 10 24 12

Monthly Data Table for Romeoville Wfo, Illinois

Monthly Data from NOAA Monthly Normals 2006-2020

Imperial Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °F 32.2 34.6 48.9 60.9 72.5 81.6 84.8 83.1 76.8 63.3 49.3 37.2
Minimum Temperature °F 16.4 17.6 30.3 39.6 51.0 60.7 65.0 63.3 56.6 43.6 32.1 22.5
Heating Degree Days °F 1261.5 1088.8 791.8 447.4 169.4 16.9 2.2 3.5 70.5 373.5 729.4 1089.5
Cooling Degree Days °F 0.0 0.0 4.2 5.0 68.5 201.3 309.0 257.6 121.3 15.5 0.4 0.0
Precipitation I 2.1 2.3 3.0 4.4 5.0 5.3 4.2 4.8 3.7 4.3 2.3 2.7

Metric Units
Statistic Units Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum Temperature °C 0.1 1.4 9.4 16.1 22.5 27.6 29.3 28.4 24.9 17.4 9.6 2.9
Minimum Temperature °C -8.7 -8.0 -0.9 4.2 10.6 15.9 18.3 17.4 13.7 6.4 0.1 -5.3
Heating Degree Days °C 683.1 587.1 422.1 230.8 76.3 -8.4 -16.6 -15.8 21.4 189.7 387.4 587.5
Cooling Degree Days °C -17.8 -17.8 -15.4 -15.0 20.3 94.1 153.9 125.3 49.6 -9.2 -17.6 -17.8
Precipitation M 5.3 5.9 7.6 11.2 12.8 13.6 10.6 12.1 9.4 11.0 5.8 6.8
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