WFO Monthly/Daily Climate Data
Issued by NWS

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485
CXUS56 KMTR 241000
CF6HWD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   HAYWARD AIRPORT
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   37 39 N
                                          LONGITUDE: 122  7 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  55  41  48  -4  17   0 0.00    M    M  7.4 15  70   M    M   3 18     20 110
 2  61  43  52   0  13   0 0.00    M    M  3.0 10 290   M    M   0 18     14  20
 3  66  39  53   1  12   0 0.00    M    M  4.2 16  50   M    M   0 1      20  40
 4  57  40  49  -3  16   0 0.00    M    M  6.1 16  50   M    M   0 8      22  50
 5  59  41  50  -2  15   0 0.00    M    M  4.6  9 280   M    M   0 18     12 270
 6  54  43  49  -3  16   0 0.00    M    M  7.8 15  40   M    M   3 18     19  50
 7  54  42  48  -4  17   0 0.00    M    M  5.8 12  40   M    M   3 18     18  50
 8  54  42  48  -4  17   0 0.00    M    M  5.5 14  40   M    M   2 18     18  40
 9  54  41  48  -4  17   0 0.00    M    M  6.4 12  50   M    M   1 18     16  40
10  59  40  50  -1  15   0 0.00    M    M  5.1 10  30   M    M   0 18     15  50
11  55  43  49  -2  16   0 0.00    M    M  5.4  9  40   M    M   1 18      M   M
12  57  41  49  -2  16   0 0.00    M    M    M  M   M   M    M   M         M   M
13  55  39  47  -4  18   0 0.00    M    M  4.9 12  40   M    M   1        16  50
14  52  41  47  -4  18   0 0.00    M    M  4.6 10  70   M    M   5 18     13  60
15  53  40  47  -4  18   0 0.00    M    M  3.3  9 300   M    M   3 18     13 290
16  59  45  52   1  13   0 0.00    M    M  3.5 15  50   M    M   1        19  50
17  66  49  58   7   7   0 0.21    M    M  4.0 13 300   M    M   7 1      17 290
18  58  50  54   3  11   0 0.00    M    M  2.4  7 140   M    M   7 128    12 230
19  64  53  59   8   6   0 0.34    M    M  5.7 13 140   M    M   9 1      16 160
20  63  59  61  10   4   0 0.06    M    M  2.0 10 130   M    M  10 1      12 130
21  65  61  63  12   2   0 0.01    M    M  9.5 20 190   M    M  10 1      27 190
22  64  58  61  10   4   0 0.52    M    M  6.6 16 140   M    M   7 1      22 150
23  65  55  60   9   5   0    T    M    M  9.5 25 150   M    M   9        39 150
================================================================================
SM 1349 1046       293   0  1.14    M    117.3          M       82
================================================================================
AV 58.7 45.5                               5.3 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->    25 150                 39 150
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   HAYWARD AIRPORT
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   37 39 N
                                          LONGITUDE: 122  7 W

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

AVERAGE MONTHLY: 52.1   TOTAL FOR MONTH:   1.14    1 = FOG OR MIST
DPTR FM NORMAL:   0.7   DPTR FM NORMAL:   -1.23    2 = FOG REDUCING VISIBILITY
HIGHEST:    66 ON 17, 3  GRTST 24HR  0.52 ON 21-22      TO 1/4 MILE OR LESS
LOWEST:     39 ON 13, 3                             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:   5
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   293    CLEAR  (SCALE 0-3)  12
DPTR FM NORMAL   -20    PTCLDY (SCALE 4-7)   6
TOTAL FM JUL 1   621    CLOUDY (SCALE 8-10)  5
DPTR FM NORMAL  -117

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   295    HIGHEST SLP M ON M
DPTR FM NORMAL   -73    LOWEST  SLP 29.54 ON 23

[REMARKS]