WFO Monthly/Daily Climate Data
Issued by NWS

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346
CXUS56 KMTR 170900
CF6SFO
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   SAN FRANCISCO AIRPORT
                                          MONTH:     MAY
                                          YEAR:      2026
                                          LATITUDE:   37 37 N
                                          LONGITUDE: 122 23 W

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  63  54  59   0   6   0 0.00    M    M 12.8 23 290   M    M   8 18     35 280
 2  61  54  58  -1   7   0 0.00    M    M 11.1 20 270   M    M   9 18     25 280
 3  65  54  60   1   5   0 0.03    M    M  9.3 20 250   M    M   8        26 230
 4  64  53  59   0   6   0 0.03    M    M  8.1 17 280   M    M   7        22 280
 5  65  53  59   0   6   0 0.05    M    M 10.4 18 260   M    M   8 1      25 250
 6  67  54  61   2   4   0 0.00    M    M 13.2 28 280   M    M   6 18     35 280
 7  62  53  58  -1   7   0 0.00    M    M 14.9 29 280   M    M   7 18     37 270
 8  60  53  57  -2   8   0 0.00    M    M 15.7 29 280   M    M   8 18     35 280
 9  64  53  59   0   6   0 0.00    M    M 13.1 31 280   M    M   6 18     40 280
10  64  53  59   0   6   0 0.00    M    M 13.5 22 300   M    M   6 18     29 300
11  72  50  61   1   4   0 0.00    M    M 11.1 25 300   M    M   3 18     31 300
12  62  51  57  -3   8   0 0.00    M    M 16.1 29 270   M    M   6 18     37 260
13  65  53  59  -1   6   0 0.00    M    M 20.2 32 270   M    M   4 18     42 270
14  66  51  59  -1   6   0 0.00    M    M 14.4 28 270   M    M   2 18     39 270
15  66  51  59  -1   6   0 0.00    M    M 17.2 36 270   M    M   1 18     47 280
16  66  52  59  -1   6   0 0.00    M    M 22.0 32 280   M    M   2 8      42 270
================================================================================
SM 1032  842        97   0  0.11    M    223.1          M       91
================================================================================
AV 64.5 52.6                              13.9 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->    36 270                 47 280
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:   SAN FRANCISCO AIRPORT
                                          MONTH:     MAY
                                          YEAR:      2026
                                          LATITUDE:   37 37 N
                                          LONGITUDE: 122 23 W

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16

AVERAGE MONTHLY: 58.6   TOTAL FOR MONTH:   0.11    1 = FOG OR MIST
DPTR FM NORMAL:  -0.8   DPTR FM NORMAL:   -0.18    2 = FOG REDUCING VISIBILITY
HIGHEST:    72 ON 11    GRTST 24HR  0.08 ON  4- 5      TO 1/4 MILE OR LESS
LOWEST:     50 ON 11                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  M            5 = HAIL
                        GRTST 24HR    M  ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  M  ON   M    7 = DUSTSTORM OR SANDSTORM:
                                                       VSBY 1/2 MILE OR LESS
                                                   8 = SMOKE OR HAZE
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW
                                                   X = TORNADO
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:   3
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   0
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.    97    CLEAR  (SCALE 0-3)   4
DPTR FM NORMAL    -2    PTCLDY (SCALE 4-7)  10
TOTAL FM JUL 1  1718    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL  -590

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1    37    HIGHEST SLP M ON M
DPTR FM NORMAL    31    LOWEST  SLP 29.86 ON  3

[REMARKS]