A Look Ahead at May Climatological Data

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
820 AM CDT TUE APR 27 2010

...A LOOK AHEAD AT MAY CLIMATOLOGICAL DATA...

NORMALS ARE FOR THE PERIOD 1971-2000

TEMPERATURES...           CHICAGO-O`HARE     ROCKFORD
NORMAL HIGH/LOW           70/48              71/48
  MAY 1  NORMALS          64/42              66/42
  MAY 31 NORMALS          75/53              76/53

MONTH RECORD HIGH         98 ON 5/31/1934    106 ON 5/31/1934
MONTH RECORD LOW          27 ON 5/9/1983#    24  ON 5/10/1966

NORMAL OCCURRENCES OF...
  HIGHS 90 OR ABOVE       1                  1
  HIGHS 32 OR BELOW       0                  0
  LOWS  32 OR BELOW       1                  1
  LOWS   0 OR BELOW       0                  0

PRECIPITATION...
NORMAL LIQUID EQUIVALENT  3.38               4.03
  GREATEST MONTH TOTAL    7.59 IN 1945      11.75 IN 1996
  LEAST MONTH TOTAL       0.30 IN 1992       0.48 IN 1992

DEGREE DAYS /BASE 65/...
NORMAL HEATING            232                215
NORMAL COOLING            48                 49

CLIMATOLOGICAL OUTLOOK FOR MAY:
   TEMPERATURES ---- EQUAL CHANCES OF ABOVE...BELOW AND AVERAGE
                     TERMPERATURES

   PRECIPITATION --- EQUAL CHANCE OF ABOVE...BELOW AND AVERAGE
                     PRECIPITATION

# - LAST OF SEVERAL OCCURRENCES


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