332  
CDUS46 KMTR 020026  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
526 PM PDT MON MAY 01 2023  
   
...............................
 
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 1 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1927 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 59 1:42 PM 89 1947 67 -8 67  
MINIMUM 53 7:05 AM 44 1983 50 3 49  
1988  
2008  
AVERAGE 56 59 -3 58  
 
PRECIPITATION (IN)  
TODAY 0.00 0.20 2009 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.02 -0.02 0.00  
SINCE OCT 1 30.66 18.93 11.73 18.12  
SINCE JAN 1 19.41 11.96 7.45 1.84  
 
SNOWFALL (IN)  
TODAY MM 0.0  
MONTH TO DATE MM  
SINCE MAR 1 MM  
SINCE JUL 1 MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 9 7 2 7  
MONTH TO DATE 9 7 2 7  
SINCE MAR 1 656 537 119 518  
SINCE JUL 1 2364 2216 148 1984  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 2 6 -4 11  
SINCE JAN 1 2 6 -4 11    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 20 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 20.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 12:00 AM  
LOWEST 62 1:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 89 2013  
MINIMUM TEMPERATURE (F) 50 42 1950  
1954  
 
SUNRISE AND SUNSET  
MAY 1 2023...........SUNRISE 6:14 AM PDT SUNSET 8:00 PM PDT  
MAY 2 2023...........SUNRISE 6:13 AM PDT SUNSET 8:01 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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