WFO Monthly/Daily Climate Data
Issued by NWS

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150
CXUS56 KTFX 311210
CF6LWT
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   LEWISTOWN MT
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   47  2 N
                                          LONGITUDE: 109 28 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  34   9  22  -5  43   0    T    M    M  8.1 23 250   M    M   3 1      29 240
 2  34  24  29   2  36   0 0.28    M    M 11.9 20 250   M    M  10 1      28 300
 3  28  14  21  -6  44   0 0.01    M    M  4.9 14 230   M    M   4 1      17 320
 4  36  22  29   3  36   0 0.03    M    M 12.3 23 270   M    M   8 1      33 260
 5  35  23  29   3  36   0 0.07    M    M  7.6 20 250   M    M   7 1      25 280
 6  35  10  23  -3  42   0 0.08    M    M  7.5 23 230   M    M   9 1      28 230
 7  38  22  30   4  35   0 0.01    M    M 12.1 37 240   M    M   4        44 240
 8  43  32  38  13  27   0 0.00    M    M 19.0 33 230   M    M   4        41 240
 9  47  20  34   9  31   0 0.17    M    M 13.5 30 300   M    M   5 12     46 300
10  48  23  36  11  29   0 0.13    M    M 11.7 28 220   M    M   8 1      37 220
11  49   5  27   2  38   0 0.11    M    M  9.8 25 260   M    M   8 126    36 300
12   7   1   4 -20  61   0    M    M    M  6.6 15 100   M    M   9 12     17 110
13  38   1  20  -4  45   0 0.01    M    M  6.4 20 220   M    M   6 1      23 220
14  48  35  42  18  23   0 0.00    M    M 19.6 30 220   M    M   0        36 220
15  56  39  48  24  17   0 0.00    M    M 21.5 36 240   M    M   0        50 230
16  53  41  47  23  18   0 0.00    M    M 15.8 36 240   M    M   3        50 250
17  51   9  30   6  35   0 0.11    M    M 24.2 54 270   M    M   5 1      76 290
18  45  12  29   5  36   0 0.00    M    M 13.5 33 240   M    M   3        46 220
19  51  15  33  10  32   0    T    M    M 20.5 44 230   M    M   3        61 310
20  39  19  29   6  36   0 0.00    M    M 16.8 35 250   M    M   0        43 250
21  43  25  34  11  31   0 0.00    M    M  7.1 21 220   M    M   6        28 220
22  48  25  37  14  28   0 0.00    M    M 10.9 26 270   M    M   6        36 270
23  52  26  39  16  26   0 0.00    M    M  5.8 14 120   M    M   2        17 120
24  53  24  39  16  26   0 0.00    M    M  4.8 12 120   M    M   1 1      13 110
25  57  25  41  18  24   0 0.00    M    M 10.3 24 260   M    M   3        33 250
26  55  27  41  18  24   0    T    M    M 15.3 36 270   M    M   1        53 200
27  38  -7  16  -7  49   0 0.02    M    M 13.3 29 300   M    M   5 18     48 310
28  25  -5  10 -13  55   0 0.00    M    M  5.1 17 280   M    M   2        24 280
29  42  19  31   8  34   0 0.00    M    M  9.6 20 240   M    M   1        25 240
30  51  26  39  16  26   0 0.00    M    M  7.4 16 230   M    M   0        19 230
================================================================================
SM 1279  561      1023   0  1.03    M    352.9          M      126
================================================================================
AV 42.6 18.7                              11.8 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->    54 270                 76 290
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   LEWISTOWN MT
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   47  2 N
                                          LONGITUDE: 109 28 W

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

AVERAGE MONTHLY: 30.7   TOTAL FOR MONTH:   1.03    1 = FOG OR MIST
DPTR FM NORMAL:   6.4   DPTR FM NORMAL:    0.54    2 = FOG REDUCING VISIBILITY
HIGHEST:    57 ON 25    GRTST 24HR  0.28 ON  2- 2      TO 1/4 MILE OR LESS
LOWEST:     -7 ON 27                               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:   3    0.01 INCH OR MORE:  12
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   5
MIN 32 OR BELOW:  27    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   2    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.  1023    CLEAR  (SCALE 0-3)  13
DPTR FM NORMAL  -197    PTCLDY (SCALE 4-7)  13
TOTAL FM JUL 1  2662    CLOUDY (SCALE 8-10)  4
DPTR FM NORMAL  -649

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   163    HIGHEST SLP M ON M
DPTR FM NORMAL   -66    LOWEST  SLP 29.08 ON 17

[REMARKS]