WFO Monthly/Daily Climate Data
Issued by NWS

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121
CXUS56 KSTO 241400
CF6MOD
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   MODESTO CA
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   37 37 N
                                          LONGITUDE: 120 57 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  49  37  43  -7  22   0 0.00    M    M  1.3  8 130   M    M   7 18     10 120
 2  46  37  42  -7  23   0 0.00    M    M  4.1 10 120   M    M   9 12     13 120
 3  54  42  48  -1  17   0 0.00    M    M  6.4 14 320   M    M   6 18     18 310
 4  48  35  42  -7  23   0 0.00    M    M  3.4 12 140   M    M   7 18     17 140
 5  45  35  40  -9  25   0 0.00    M    M  4.4  9 160   M    M   9 128    15 150
 6  45  42  44  -4  21   0 0.00    M    M  1.5  8 350   M    M  10 18      M   M
 7   M   M   M   M   M   M 0.00    M    M    M  M   M   M    M   M         M   M
 8   M   M   M   M   M   M 0.00    M    M    M  M   M   M    M   M         M   M
 9   M   M   M   M   M   M 0.00    M    M    M  M   M   M    M   M         M   M
10   M   M   M   M   M   M 0.00    M    M    M  M   M   M    M   M         M   M
11  44  40  42  -6  23   0 0.00    M    M  3.3  9 130   M    M  10 1      13 120
12  42  39  41  -7  24   0 0.00    M    M  2.8 10 120   M    M  10 1      14 140
13  44  38  41  -6  24   0 0.00    M    M  1.4  8 120   M    M  10 1      11 120
14  43  39  41  -6  24   0 0.00    M    M  2.3  8 290   M    M  10 12     10 190
15  44  39  42  -5  23   0 0.00    M    M  2.6  9 110   M    M  10 1      11 110
16  48  41  45  -2  20   0 0.00    M    M  5.1 13 130   M    M  10 18     17 130
17  62  43  53   6  12   0 0.00    M    M  4.1 13 140   M    M   6 128    18 150
18  55  47  51   4  14   0 0.00    M    M  5.5  9 130   M    M  10 128    12 140
19  57  50  54   7  11   0 0.00    M    M  5.9 14 120   M    M  10 18     18 120
20  61  51  56   9   9   0    T    M    M  6.7 12 150   M    M   9 18     17 130
21  66  57  62  15   3   0 0.00    M    M  7.6 14 160   M    M   7 8      21 150
22  67  51  59  12   6   0 0.01    M    M  4.8 15 110   M    M   4 1      19 120
23  66  51  59  13   6   0    T    M    M  7.6 22 150   M    M   4 18     35 140
================================================================================
SM  986  814       330   0  0.01    M     80.8          M      158
================================================================================
AV 51.9 42.8                               4.3 FASTST   M    M   8    MAX(MPH)
                                 MISC ---->    22 150                 35 140
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   MODESTO CA
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   37 37 N
                                          LONGITUDE: 120 57 W

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

AVERAGE MONTHLY: 47.4   TOTAL FOR MONTH:   0.01    1 = FOG OR MIST
DPTR FM NORMAL:  -0.4   DPTR FM NORMAL:   -1.57    2 = FOG REDUCING VISIBILITY
HIGHEST:    67 ON 22    GRTST 24HR  0.01 ON 22-22      TO 1/4 MILE OR LESS
LOWEST:     35 ON  5, 4                             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:   1
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.   330    CLEAR  (SCALE 0-3)   0
DPTR FM NORMAL   -66    PTCLDY (SCALE 4-7)   7
TOTAL FM JUL 1   639    CLOUDY (SCALE 8-10) 16
DPTR FM NORMAL  -147

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1  1727    HIGHEST SLP M ON M
DPTR FM NORMAL   104    LOWEST  SLP 29.59 ON 23

[REMARKS]