WFO Monthly/Daily Climate Data
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065
CXUS56 KSGX 311145
CF6CNO
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CHINO AIRPORT CA
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   33 58 N
                                          LONGITUDE: 117 38 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  75  44  60   4   5   0 0.00    M    M  3.6 17  90   M    M   4 128    25  90
 2  72  38  55  -1  10   0 0.00    M    M  3.3 15 260   M    M   2 18     18 260
 3  69  45  57   1   8   0 0.00    M    M  7.4 22  40   M    M   3 18     38  40
 4  71  41  56   1   9   0 0.00    M    M  4.9 18 120   M    M   2 8      25 150
 5  74  37  56   1   9   0 0.00    M    M  1.8 10 260   M    M   0 8      12 260
 6  75  38  57   2   8   0 0.00    M    M  1.5  9 270   M    M   0 8      13 290
 7  80  40  60   5   5   0 0.00    M    M  1.4  8 260   M    M   0         9 260
 8  85  41  63   8   2   0 0.00    M    M  4.1 18  90   M    M   0        27  80
 9  86  43  65  11   0   0 0.00    M    M  1.7  8 340   M    M   0        11  60
10  88  42  65  11   0   0 0.00    M    M  1.9  8 270   M    M   0 8      12 250
11  87  44  66  12   0   1 0.00    M    M  1.5 12 260   M    M   0        14 260
12  83  44  64  10   1   0 0.00    M    M  1.4  9 270   M    M   2 18     12 290
13  77  43  60   6   5   0 0.00    M    M  1.6  8 280   M    M   3 128    12 280
14  78  47  63   9   2   0 0.00    M    M  2.3 10 280   M    M   4 128    15 280
15  80  42  61   7   4   0 0.00    M    M  1.7 12 270   M    M   3 128    14 290
16  82  41  62   8   3   0 0.00    M    M  1.8 10 270   M    M   1 18     12 270
17  76  44  60   6   5   0 0.00    M    M  2.3  9 240   M    M   1 18     13 280
18  82  43  63   9   2   0 0.00    M    M  2.0  7 220   M    M   3 18      8 110
19  80  41  61   7   4   0 0.00    M    M  2.3 12 280   M    M   2 128    17 300
20  68  44  56   2   9   0 0.00    M    M  1.5  9 260   M    M   6 128    12 270
21  77  43  60   6   5   0 0.00    M    M  1.5 10 230   M    M   5 128    13 210
22  77  41  59   5   6   0 0.00    M    M  1.0  6 280   M    M   5 128     8 190
23  63  48  56   2   9   0 0.02    M    M  2.5 13  90   M    M   9 128    19  90
24  64  56  60   6   5   0 1.16  0.0    0  5.8 22 170   M    M  10 1      34 170
25  70  51  61   7   4   0 0.07  0.0    0  4.0 14 230   M    M   6 18     20 220
26  57  52  55   1  10   0 0.33  0.0    0  3.3 10 270   M    M   9 18     17 280
27   M   M   M   M   M   M 0.00  0.0    0  1.9  6 240   M    M   2 2       6 240
28   M   M   M   M   M   M 0.00  0.0    0  1.6  0   0   M    M   1         0   0
29   M   M   M   M   M   M 0.00  0.0    0 21.1 23  80   M    M   0        29  80
30   M   M   M   M   M   M 0.00  0.0    0  6.3  7 100   M    M   2         7 100
================================================================================
SM 1976 1133       130   1  1.58  0.0     99.0          M       85
================================================================================
AV 76.0 43.6                               3.3 FASTST   M    M   3    MAX(MPH)
                                 MISC ---->    23  80                 38  40
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   CHINO AIRPORT CA
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   33 58 N
                                          LONGITUDE: 117 38 W

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

AVERAGE MONTHLY: 59.8   TOTAL FOR MONTH:   1.58    1 = FOG OR MIST
DPTR FM NORMAL:   5.4   DPTR FM NORMAL:   -0.05    2 = FOG REDUCING VISIBILITY
HIGHEST:    88 ON 10    GRTST 24HR  1.18 ON 23-24      TO 1/4 MILE OR LESS
LOWEST:     37 ON  5                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   0.0 INCH    5 = HAIL
                        GRTST 24HR  0.0            6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  0            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:   4
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   2
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   130    CLEAR  (SCALE 0-3)  20
DPTR FM NORMAL  -186    PTCLDY (SCALE 4-7)   7
TOTAL FM JUL 1   254    CLOUDY (SCALE 8-10)  3
DPTR FM NORMAL  -248

[CDD (BASE 65) ]
TOTAL THIS MO.     1
DPTR FM NORMAL     1    [PRESSURE DATA]
TOTAL FM JAN 1  1699    HIGHEST SLP M ON M
DPTR FM NORMAL  -119    LOWEST  SLP 29.86 ON 24

[REMARKS]