WFO Monthly/Daily Climate Data
Issued by NWS

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CXUS55 KRIW 301110
CF6P60
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   LAKE YELLOWSTONE WY
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   44 32 N
                                          LONGITUDE: 110 25 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  21  -3   9  -7  56   0 0.04    M    M  2.7  9 260   M    M   0        17 270
 2  25  18  22   7  43   0 0.03    M    M  3.9 12 280   M    M   0        22 280
 3  27   1  14  -1  51   0 0.00    M    M  1.6  9 270   M    M   0        14 280
 4  21  16  19   4  46   0 0.20    M    M  4.5 12 270   M    M   0        20 290
 5  28  15  22   7  43   0 0.29    M    M  4.7 15 270   M    M   0        28 270
 6  31  20  26  12  39   0 0.04    M    M  8.9 16 270   M    M   0        29 260
 7  27  13  20   6  45   0 0.07    M    M  5.4 14 270   M    M   0        24 280
 8  31  24  28  14  37   0 0.04    M    M  6.3 16 260   M    M   0        30 180
 9  34  22  28  14  37   0 0.12    M    M  6.9 16 260   M    M   0        32 260
10  36  22  29  16  36   0 0.12    M    M  4.5 17 270   M    M   0        37 230
11  37  34  36  23  29   0 0.00    M    M  5.3 13 260   M    M   0        28 200
12  38  31  35  22  30   0 0.01    M    M  6.1 13 260   M    M   0        24 270
13  40  17  29  16  36   0 0.00    M    M  3.1 10 270   M    M   0        20 310
14  40  11  26  13  39   0 0.00    M    M  1.4  7 250   M    M   0        12 230
15  42   8  25  12  40   0 0.00    M    M  1.7 10 270   M    M   0        23 190
16  39  28  34  22  31   0 0.00    M    M  7.9 15 270   M    M   0        30 270
17  36  15  26  14  39   0 0.35    M    M  9.2 28 280   M    M   0        53 260
18  23  10  17   5  48   0 0.28    M    M  3.3 14 280   M    M   0        22 270
19  33  18  26  14  39   0 0.52    M    M 10.9 21 260   M    M   0        41 250
20  23  11  17   5  48   0 0.00    M    M  4.2 13 270   M    M   0        32 270
21  33  15  24  12  41   0 0.65    M    M  1.8  9 250   M    M   0        16 250
22  35  33  34  22  31   0 0.64    M    M  4.4 10 270   M    M   0        22 190
23  39  28  34  22  31   0 0.07    M    M  1.2  6 290   M    M   0        10 250
24  39  23  31  19  34   0 0.45    M    M  1.8  7 140   M    M   0        14 120
25  37  30  34  22  31   0 0.91    M    M  2.7 10 260   M    M   0        21 260
26  32  22  27  15  38   0 0.33    M    M  5.1 14 250   M    M   0        28 290
27  24   2  13   1  52   0 0.26    M    M  6.7 17 260   M    M   0        34 240
28  13 -15  -1 -13  66   0 0.00    M    M  2.1 10 310   M    M   0        22 300
29  24  -4  10  -2  55   0 0.00    M    M  0.9  5 120   M    M   0         7 120
================================================================================
SM  908  465      1191   0  5.42    M    129.2          M        0
================================================================================
AV 31.3 16.0                               4.5 FASTST   M    M   0    MAX(MPH)
                                 MISC ---->    28 280                 53 260
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   LAKE YELLOWSTONE WY
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   44 32 N
                                          LONGITUDE: 110 25 W

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

AVERAGE MONTHLY: 23.7   TOTAL FOR MONTH:   5.42    1 = FOG OR MIST
DPTR FM NORMAL:  10.6   DPTR FM NORMAL:    3.22    2 = FOG REDUCING VISIBILITY
HIGHEST:    42 ON 15    GRTST 24HR  1.12 ON 24-25      TO 1/4 MILE OR LESS
LOWEST:    -15 ON 28                               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:  14    0.01 INCH OR MORE:  20
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  13
MIN 32 OR BELOW:  27    0.50 INCH OR MORE:   4
MIN  0 OR BELOW:   3    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.  1191    CLEAR  (SCALE 0-3)  29
DPTR FM NORMAL  -315    PTCLDY (SCALE 4-7)   0
TOTAL FM JUL 1  4149    CLOUDY (SCALE 8-10)  0
DPTR FM NORMAL  -864

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1     1    HIGHEST SLP M ON M
DPTR FM NORMAL     1    LOWEST  SLP 29.35 ON 17

[REMARKS]