CDUS43 KLOT 182134
CLILOT

CLIMATE REPORT 
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT MON MAY 18 2026

...................................

...THE ROMEOVILLE WFO CLIMATE SUMMARY FOR MAY 18 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1992 TO 2026


WEATHER ITEM   OBSERVED RECORD YEAR NORMAL DEPARTURE LAST             
                VALUE   VALUE       VALUE  FROM      YEAR            
                                           NORMAL                  
............................................................
TEMPERATURE (F)                                                          
 TODAY                                                               
  MAXIMUM         77     93    1998  73      4       69               
  MINIMUM         67     31    2002  51     16       45               
  AVERAGE         72                 62     10       57            

PRECIPITATION (IN)                                                    
  TODAY            0.29   1.22 2000   0.16   0.13     0.00            
  MONTH TO DATE    0.94               2.81  -1.87     0.50            
  SINCE MAR 1     11.66               9.63   2.03     8.34            
  SINCE JAN 1     14.29              13.80   0.49     9.76            

SNOWFALL (IN)                                                              
  TODAY            0.0   MM      MM   0.0    0.0      0.0             
  MONTH TO DATE    0.0                0.0    0.0      0.0             
  SINCE MAR 1      6.0                5.1    0.9      2.7             
  SINCE JUL 1     30.7               33.2   -2.5     17.5             
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  TODAY            0                  5     -5        8               
  MONTH TO DATE  182                132     50      109               
  SINCE MAR 1   1156               1386   -230     1172               
  SINCE JUL 1   5737               5992   -255     5510               

 COOLING                                                              
  TODAY            7                  2      5        0               
  MONTH TO DATE   18                 26     -8       38               
  SINCE MAR 1     31                 36     -5       44               
  SINCE JAN 1     31                 36     -5       44               
............................................................


THE ROMEOVILLE WFO CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   74        92      1996                      
 MINIMUM TEMPERATURE (F)   51        38      1993                      


SUNRISE AND SUNSET                                                    
MAY 18 2026...........SUNRISE   5:30 AM CDT   SUNSET   8:08 PM CDT     
MAY 19 2026...........SUNRISE   5:29 AM CDT   SUNSET   8:09 PM CDT     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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