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Normal Weather, Forecast, Temperature and Precipitation

Normal Weather Related Indexes Graph

2010 Weather Summary Normal, IL Illinois United States
Weather Index 60 59 100
Hail Index 151 141 100
Hurricane Index 18 15 100
Tornado Index 196 171 100
 
Annual Maximum Avg. Temperature 60.0 °F 61.0 °F N/A
Annual Minimum Avg. Temperature 41.0 °F 42.0 °F N/A
Annual Avg. Temperature 50.7 °F 51.1 °F N/A
Annual Heating Degree Days (Tot Degrees < 65) 6,148 6,050 N/A
Annual Cooling Degree Days (Tot Degrees > 65) 982 1,011 N/A
Percent of Possible Sunshine 56 57 N/A
Mean Sky Cover (Sunrise to Sunset - Out of 10) 6 6 N/A
Mean Number of Days Clear (Out of 365 Days) 95 99 N/A
Mean Number of Days Rain (Out of 365 Days) 114 115 N/A
Mean Number of Days Snow (Out of 365 Days) 8 8 N/A
Avg. Annual Precipitation (Total Inches) 36.00" 36.00" N/A
Avg. Annual Snowfall (Total Inches) 25.00" 27.00" N/A

The data for Normal, IL may also contain data for the following areas: Normal

Annual Heating Degree Days (HDD): A form of Degree Day used to estimate energy requirements for heating. Typically, heating degree days are calculated as how much colder the mean temperature at a location is than 65°F on a given day. For example, if a location experiences a mean temperature of 55°F on a certain day, there were 10 HDD that day because 65 - 55 = 10, according to the National Weather Service.

Annual Cooling Degree Days (CDD): A form of Degree Day used to estimate energy requirements for air conditioning or refrigeration. Typically, cooling degree days are calculated as how much warmer the mean temperature at a location is than 65°F on a given day. For example, if a location experiences a mean temperature of 75°F on a certain day, there were 10 CDD that day because 75 - 65 = 10, according to the National Weather Service.

Mean Sky Cover: reflects the approximate amount that the sky is covered with clouds, sunrise to sunset on a scale of 0 to 10

Index score: (100 = National Average) for an area is compared to the national average of 100. A score of 200 indicates twice the national average, while 50 indicates half the national average. Note: A higher Weather Index score represents better overall weather (higher number good). A higher Hail, Hurricane or Tornado Index means the chance of that weather event is higher (higher number bad).

Information is deemed reliable but not guaranteed. Demographic Information FAQ

Normal 2010 Avg. Monthly Low Temperatures

2010 Avg. Monthly Low Temperature Normal, IL Illinois United States
Avg. Annual Low Temperature 41.4 °F 39.4 °F N/A
Avg. January Low Temperature 16.3 °F 13.6 °F N/A
Avg. February Low Temperature 20.3 °F 17.6 °F N/A
Avg. March Low Temperature 29.4 °F 27.9 °F N/A
Avg. April Low Temperature 40.3 °F 38.5 °F N/A
Avg. May Low Temperature 51.0 °F 48.8 °F N/A
Avg. June Low Temperature 60.6 °F 58.5 °F N/A
Avg. July Low Temperature 64.7 °F 62.9 °F N/A
Avg. August Low Temperature 62.8 °F 60.9 °F N/A
Avg. September Low Temperature 54.8 °F 52.8 °F N/A
Avg. October Low Temperature 43.4 °F 41.3 °F N/A
Avg. November Low Temperature 32.4 °F 30.9 °F N/A
Avg. December Low Temperature 21.6 °F 19.6 °F N/A

The data for Normal, IL may also contain data for the following areas: Normal

Information is deemed reliable but not guaranteed. Demographic Information FAQ

Normal 2010 Avg. Monthly High Temperatures

2010 Avg. Monthly High Temperature Normal, IL Illinois United States
Avg. Annual High Temperature 62.1 °F 60.3 °F N/A
Avg. January High Temperature 33.0 °F 30.9 °F N/A
Avg. February High Temperature 37.6 °F 35.2 °F N/A
Avg. March High Temperature 49.0 °F 46.8 °F N/A
Avg. April High Temperature 63.0 °F 60.8 °F N/A
Avg. May High Temperature 74.0 °F 72.7 °F N/A
Avg. June High Temperature 83.0 °F 82.1 °F N/A
Avg. July High Temperature 86.8 °F 85.6 °F N/A
Avg. August High Temperature 84.8 °F 83.3 °F N/A
Avg. September High Temperature 78.7 °F 76.5 °F N/A
Avg. October High Temperature 66.6 °F 64.8 °F N/A
Avg. November High Temperature 50.7 °F 48.8 °F N/A
Avg. December High Temperature 37.4 °F 35.6 °F N/A

The data for Normal, IL may also contain data for the following areas: Normal

Information is deemed reliable but not guaranteed. Demographic Information FAQ

Normal 2010 Avg. Monthly Precipitation

2010 Avg. Monthly Precipitation Normal, IL Illinois United States
Avg. Annual Precipitation 37.79" 36.65" N/A
Avg. January Precipitation 1.67" 1.64" N/A
Avg. February Precipitation 1.69" 1.51" N/A
Avg. March Precipitation 3.02" 2.75" N/A
Avg. April Precipitation 3.64" 3.63" N/A
Avg. May Precipitation 4.30" 4.07" N/A
Avg. June Precipitation 3.98" 4.10" N/A
Avg. July Precipitation 3.89" 3.88" N/A
Avg. August Precipitation 3.71" 3.62" N/A
Avg. September Precipitation 3.23" 3.21" N/A
Avg. October Precipitation 2.78" 2.72" N/A
Avg. November Precipitation 3.19" 3.07" N/A
Avg. December Precipitation 2.68" 2.44" N/A

The data for Normal, IL may also contain data for the following areas: Normal

Information is deemed reliable but not guaranteed. Demographic Information FAQ