Climate Summary for 2011 For Chicago

2011 Climate for Chicago

  Temperatures Precipitation
Month High Low Average Total Snow

January

26.7 14.5 20.6 0.92 11.1
February 32.7 19.6 26.2 3.52 29.0
March 43.8 28.8 36.3 2.62 1.0
April 56.1 39.3 47.7 4.90 0.6
May 67.8 48.0 57.9 7.27 T
June 79.4 59.5 69.5 3.39 ...
July 88.5 69.5 79.0 11.15 ...
August 82.5 64.4 73.5 4.54 ...
September 69.9 54.4 62.2 3.45 ...
October 65.2 44.6 54.9 1.98 ...
November 52.4 37.4 44.9 3.44 T
December  41.8 28.6   35.2 2.65 1.7 
TOTALS: 58.9 42.4 50.7 49.83 ***
Departure from Normal (-0.02) (+1.6) (+0.8) (+12.94)  

*** Seasonal snowfall is recorded from July-June (overlapping years), not yearly. ***

 


Records

Temperature...

Highs:

  • 90 on May 10th 

Lows:

  • None

Highest Lows:

  • 80 on July 18th
  • 78 on July 19th, tied previous record 

Lowest Highs:

  • None

Monthly:

  • None 

Seasonal:

  • None 

Yearly:

  • None

Precipitation...

One-day pcpn:

  • 0.74" on February 1st
  • 6.86" on July 23rd, also biggest calendar day rainfall
  • 1.43" on December 14th

One-day snowfall:

  • 13.6" on February 1st
  •   6.6" on February 2nd
  •   0.6" on April 18th

Monthly pcpn:

  • 9th wettest February with 3.52 inches
  • 3rd wettest May with 7.27 inches 
  • Wettest July at 11.15 inches

Monthly snowfall:

  • Snowiest February with 29.0 inches, 3rd snowiest month on record

Seasonal precipitation:

  • 5th wettest spring on record with 14.79 inches 
  • 4th wettest summer on record with 19.08 inches

Yearly precipitation:

  • 2nd wettest year with 49.83 inches

Highest temperature for 2011 99 on July 20th & 21st
Lowest temperature for 2011 -9 on February 10th
Highest one-day precipitation 6.86 inches on July 23rd
Highest one-day snowfall 13.6 inches on February 1st
Number of days with highs at or above 90 degrees 22
Number of days with highs at or below 32 degrees 44
Number of days with zero or below temperatures 4
Peak wind gust 70 mph from the south on June 21st
Number of days with measurable precipitation 142
Percentage of days with measurable precipitation 39%

 



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