Cairo
The tables below display average monthly climate and weather indicators in Cairo Illinois.
Temperature by: Fahrenheit / Centigrade
| Cairo Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 |
| Avg. Max Temperature | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 |
| Avg. Min Temperature | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 |
| Days with Max Temp of 32 C or Higher | 0.0 | 0.0 | 0.0 | < 0.5 | 2.0 | 11.0 | 17.0 | 13.0 | 4.0 | < 0.5 | 0.0 | 0.0 | 48.0 |
| Days with Min Temp Below Freezing | 21.0 | 15.0 | 7.0 | < 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | < 0.5 | 6.0 | 17.0 | 66.0 |
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| Cairo Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 |
| Cooling Degree Days | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 | < 1 |
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| Cairo Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | < 0.05 |
| Days with Precipitation 0.01 inch or More | 10.0 | 9.0 | 12.0 | 11.0 | 11.0 | 9.0 | 9.0 | 8.0 | 7.0 | 7.0 | 9.0 | 10.0 | 112 |
| Monthly Snowfall (inches) | 3.8 | 2.5 | 2.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 1.4 | 10.2 |
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| Other Cairo Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 9.8 | 9.8 | 10.6 | 10.2 | 8.2 | 7.4 | 6.5 | 6.2 | 7.0 | 7.3 | 9.1 | 9.3 | 8.5 |
| Clear Days | 8.0 | 8.0 | 9.0 | 8.0 | 8.0 | 8.0 | 9.0 | 12.0 | 12.0 | 15.0 | 9.0 | 8.0 | 113 |
| Partly Cloudy Days | 6.0 | 6.0 | 8.0 | 9.0 | 10.0 | 12.0 | 13.0 | 11.0 | 9.0 | 7.0 | 8.0 | 7.0 | 104 |
| Cloudy Days | 17.0 | 14.0 | 15.0 | 13.0 | 13.0 | 10.0 | 10.0 | 8.0 | 9.0 | 9.0 | 13.0 | 16.0 | 149 |
| Percent of Possible Sunshine | 45.0 | 50.0 | 56.0 | 62.0 | 65.0 | 72.0 | 74.0 | 75.0 | 69.0 | 67.0 | 51.0 | 44.0 | 61.0 |
| Avg. Relative Humidity | 51.0 | 73.0 | 71.0 | 68.0 | 68.0 | 70.0 | 70.5 | 73.0 | 73.0 | 71.0 | 66.5 | 68.5 | 74.0 |
Weather information for other cities in Illinois