523  
CDUS46 KMTR 230045  
CLISFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
545 PM PDT THU MAY 22 2025  
   
...............................
 
 
   
..THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR MAY 22 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1850 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 62 2:43 PM 85 1943 64 -2 67  
MINIMUM 51 3:43 AM 44 1909 52 -1 52  
AVERAGE 57 58 -1 60  
 
PRECIPITATION (IN)  
TODAY 0.00 0.74 1958 0.02 -0.02 0.00  
MONTH TO DATE 0.15 0.54 -0.39 0.94  
SINCE OCT 1 19.75 22.36 -2.61 25.62  
SINCE JAN 1 9.55 14.06 -4.51 18.94  
 
DEGREE DAYS  
HEATING  
TODAY 8 7 1 5  
MONTH TO DATE 158 171 -13 155  
SINCE MAR 1 741 733 8 717  
SINCE JUL 1 2341 2551 -210 2137  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 4 0 4 4  
SINCE MAR 1 6 7 -1 6  
SINCE JAN 1 6 7 -1 6    
...............................................................
 
 
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 91 1943  
MINIMUM TEMPERATURE (F) 52 47 1903  
 
SUNRISE AND SUNSET  
MAY 22 2025...........SUNRISE 5:54 AM PDT SUNSET 8:19 PM PDT  
MAY 23 2025...........SUNRISE 5:54 AM PDT SUNSET 8:20 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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