Cairo, Illinois Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:

• Cairo, Illinois, Usa latitude & longitude; 37°0'N 89°10'W.
• Altitude; 96 m (315 ft).
• The average temperature in Cairo, Illinois, Usa is 15.3 °C (60 °F).
• The range of average monthly temperatures is 24 °C.
• The warmest average max/ high temperature is 32 °C (90 °F) in July & August.
• The coolest average min/ low temperature is -1 °C (30 °F) in January.
• Cairo, Illinois receives on average 1153 mm (45.4 in) of precipitation annually or 96 mm (3.8 in) each month.
• On balance there are 115 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 9.6 days on an average month.
• The month with the driest weather is October when on balance 74 mm (2.9 in) of rain, sleet, hail or snow falls across 8 days.
• The month with the wettest weather is March when on balance 122 mm (4.8 in) of rain, sleet, hail or snow falls across 12 days.
• Mean relative humidity for an average year is recorded as 59.3% and on a monthly basis it ranges from 53% in October to 68% in December.
• There is an average range of hours of sunshine in Cairo, Illinois of between 4.0 hours per day in January and 10.8 hours per day in July.
• On balance there are 2901 sunshine hours annually and approximately 7.9 sunlight hours for each day.

Cairo, Illinois Climate Graph (Metric | Imperial units)

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Cairo, Illinois Weather Averages

Cairo, Illinois Climograph/ Climate Chart (imperial)

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Cairo, Illinois Temperatures in Farenheit