AFOS product CLISFO
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CDUS46 KMTR 201207
CLISFO

CLIMATE REPORT
NATIONAL WEATHER SERVICE IN SAN FRANCISCO                            
505 AM PDT FRI MAY 20 2005

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

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 19 2005...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1927 TO 2005

WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 YESTERDAY                                                           
  MAXIMUM         66    504 PM  91    1931  67     -1       65       
  MINIMUM         58   1159 PM  41    1933  51      7       51       
  AVERAGE         62                        59      3       58      
                                                                     
PRECIPITATION (IN)                                                   
  YESTERDAY        0.19          0.30 1961   0.01   0.18     0.00    
  MONTH TO DATE    1.15                      0.26   0.89     0.00    
  SINCE JUL 1     26.83                     19.88   6.95    17.42    
  SINCE JAN 1     15.96                     13.16   2.80     8.37    
                                                                     
SNOWFALL (IN)                                                        
  YESTERDAY        0.0                                               
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  YESTERDAY        3                         6     -3        7       
  MONTH TO DATE   71                       133    -62       94       
  SINCE MAR 1    547                       738   -191      462       
  SINCE JUL 1   2169                      2674   -505     2197       
                                                                     
 COOLING                                                             
  YESTERDAY        0                         0      0        0       
  MONTH TO DATE    1                         0      1        4       
  SINCE MAR 1      6                         4      2       42       
  SINCE JAN 1      6                         4      2       42       
..................................................................

WIND (MPH)                                                           
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     W (260)      
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     W (270)      
  AVERAGE WIND SPEED     7.9                                         
                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.8                                              
                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                        
  LIGHT RAIN                                                         
  FOG                                                                
                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    93           400 AM                                     
 LOWEST     68           300 PM                                     
 AVERAGE    81                                                       
..........................................................
                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   67        93      1988                    
 MINIMUM TEMPERATURE (F)   51        42      1939                    
                                                                     
SUNRISE AND SUNSET                                                   
MAY 20 2005...........SUNRISE   556 AM PDT   SUNSET   817 PM PDT   
MAY 21 2005...........SUNRISE   555 AM PDT   SUNSET   817 PM PDT   
                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          


$$


&&
---------------------------------------------------------------------
TEMPERATURE SUMMARIES FOR SELECTED LOCATIONS
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
530 AM PDT FRI MAY 20 2005 

TEMPERATURE CLIMATOLOGY FOR MAY 20 2005 .
--------------------------------------------------------------------
               MAY MAY  MAY    HIGHEST    LOWEST     RECORDS SET ON
                19 20    20    SINCE      SINCE          MAY 20
                HI LO  NORMS   JAN 1      JUL 1     HI YEAR  LO YEAR
--------------  -----  -----  ---------  ---------  -------  -------
SAN FRANCISCO   65 54  65 51  87 MAR 11  41 JAN 14  92 1988  43 1899
SFO AIRPORT     66 57  67 51  83 MAR 11  36 DEC 04  93 1988  42 1939
OAKLAND         66 53  69 54  88 MAR 11  38 JAN 14  89 1988  48 1976
OAKLAND AIRPOR  66 51  66 53  78 MAR 11  30 DEC 04  93 1943  42 1933
MOFFETT FIELD   68 52  70 51  83 MAR 11  31 DEC 04  91 1988  44 1945
SAN JOSE        72 56  77 52  87 MAR 11  32 JAN 14  97 1988  40 ----
SANTA ROSA      68  M  75 49  87 MAR 10  28 DEC 04  96 1935  34 1918
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HIGHS AND LOWS FOR TODAY WILL BE IN THE AFTERNOON REPORT.
ALL NORMALS ARE 1971-2000 AVERAGE EXCEPT
MOFFETT NAS WHICH IS A 1961-1990 AVERAGE.



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

PRECIPITATION DATA FOR SELECTED LOCATIONS
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
530 PM PDT THU MAY 19 2005 

PRECIPITATION DATA AS OF 5 PM FOR SELECTED CALIFORNIA LOCATIONS
-------------------------------------------------------------------
NORMALS ARE      LAST    JUL 1-        JUL 1-       JUL 1-   JUL 1-
1971-2000         24     MAY 19        MAY 19       MAY 19   JUN 30
AVERAGES.       HOURS    2005   PON    2004   PON   NORMAL   NORMAL
--------------  -----   -----------   -----------   ------   ------
BAKERSFIELD      0.00    9.20   146    4.63    73     6.32     6.49
EUREKA           0.16   41.22   112   37.88   103    36.94    38.10
FRESNO           0.00   15.83   145    7.51    69    10.88    11.23
OAKLAND          0.24   28.10   124   19.23    85    22.67    22.94
REDDING          0.12   38.01   118   35.71   111    32.27    33.52
SACRAMENTO       0.22   23.85   122   14.11    72    19.47    19.87
SFO AIRPORT      0.31   26.83   135   17.42    88    19.87    20.10
SAN FRANCISCO    0.36   30.95   141   20.54    93    21.99    22.28
SAN JOSE         0.15   24.27   163   13.24    89    14.86    15.08
SANTA ROSA       0.33   36.97   121   28.90    95    30.56    31.01
LOS ANGELES      0.00   37.25   249    9.25    62    14.96    15.14
SAN DIEGO        0.00   22.47   211    5.18    49    10.67    10.77
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PON - PERCENT OF NORMAL FOLLOWS THE JUL 1 - MAY 19 AMOUNTS.
TRACE AMOUNTS ARE LISTED AS TRACE.
SACRAMENTO DATA REFLECTS DOWNTOWN SACRAMENTO.