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Cairo, Illinois Climate & Temperature

  • Cairo, Illinois, Usa is at 370'N, 8910'W, 96 m (315 ft). See map.
  • Cairo, Illinois has a humid subtropical climate that is mild with no dry season, constantly moist (year-round rainfall). Summers are hot and muggy with thunderstorms. Winters are mild with precipitation from mid-latitude cyclones. Seasonality is moderate. (Kppen-Geiger classification: Cfa).
  • According to the Holdridge life zones system of bioclimatic classification Cairo, Illinois is situated in or near the warm temperate moist forest biome.
  • The average annual temperature is 15.3 degrees Celsius (59.6 degrees Fahrenheit). See the temperatures page for a monthly breakdown and the fixed scale graph.
  • Average monthly temperatures vary by 24 °C (43.2°F). This indicates that the continentality type is continental, subtype subcontinental. Cairo, Illinois Climate Graph
  • In the winter time records indicate temperatures by day reach 8°C (46.4°F) on average falling to 0°C (32°F) overnight.
  • In spring time temperatures climb reaching 20.3°C (68.6°F) generally in the afternoon with overnight lows of 9.7°C (49.4°F).
  • During summer average high temperatures are 31.7°C (89°F) and average low temperatures are 21°C (69.8°F).
  • Come autumn/ fall temperatures decrease achieving average highs of 21.3°C (70.4°F) during the day and lows of 10.7°C (51.2°F) generally shortly after sunrise.
  • Total annual Precipitation averages 1153 mm (45.4 inches) which is equivalent to 1153 Litres/m (28.28 Gallons/ft).
  • On average there are 2901 hours of sunshine per year. Visit the sunshine and daylight section to check monthly details including how high in the sky the sun reaches each month.
  • Were you to burrow down through the centre of the Earth from Cairo-Illinois you would pop up nearest to the climate station at Amsterdam Island, French Southern Lands where you would find a Marine west coast climate.

Cairo, Illinois Climate Table

  Climate Variable Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
 
Average Max Temperature °C ( °F) 7 (45) 9 (48) 14 (57) 21 (70) 26 (79) 31 (88) 32 (90) 32 (90) 28 (82) 22 (72) 14 (57) 8 (46) 20 (69)
 
Average Temperature °C ( °F) 3 (37) 5 (41) 9 (48) 16 (60) 21 (69) 26 (78) 27 (81) 27 (80) 23 (73) 17 (62) 9 (48) 4 (39) 15 (60)
 
Average Min Temperature °C ( °F) -1 (30) 1 (34) 4 (39) 10 (50) 15 (59) 20 (68) 22 (72) 21 (70) 17 (63) 11 (52) 4 (39) 0 (32) 10 (51)
 
Average Precipitation mm (in) 114 (4) 94 (4) 122 (5) 104 (4) 112 (4) 104 (4) 81 (3) 79 (3) 76 (3) 74 (3) 99 (4) 94 (4) 1153 (45)
Number of Wet Days (probability of rain on a day %) 10 (32) 10 (35) 12 (39) 11 (37) 11 (35) 10 (33) 9 (29) 8 (26) 7 (23) 8 (26) 9 (30) 10 (32) 115 (32)
Average Sunlight Hours/ Day 4h 01' 5h 35' 7h 09' 8h 32' 9h 17' 10h 46' 10h 46' 10h 42' 9h 22' 8h 01' 6h 18' 4h 38' 7h 56'
Average Daylight Hours/ Day 9h 55' 10h 46' 11h 54' 13h 06' 14h 08' 14h 39' 14h 25' 13h 32' 12h 22' 11h 10' 10h 09' 9h 39' 12h 00'
Percentage of Sunny (Cloudy) Daylight Hours 41 (59) 53 (47) 61 (39) 66 (34) 66 (34) 74 (26) 76 (24) 80 (20) 77 (23) 73 (27) 63 (37) 49 (51) 66 (34)
Sun altitude at solar noon on the 21st day (). 33.2 42.5 53.4 65 73.3 76.4 73.3 65 53.5 42 32.9 29.6 53.3

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