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WFO Monthly/Daily Climate Data
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CXUS56 KTFX 311155
CF6GTF
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   GREAT FALLS MT
                                          MONTH:     DECEMBER
                                          YEAR:      2012
                                          LATITUDE:   47 28 N
                                          LONGITUDE: 111 22 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  56  37  47  20  18   0 0.00  0.0    0 15.6 31 220   M    M   1        40 230
 2  58  34  46  19  19   0 0.01  0.0    0 16.9 32 240   M    M   4        41 180
 3  48  37  43  16  22   0 0.00  0.0    0 21.5 39 230   M    M   0        45 230
 4  55  36  46  20  19   0    T  0.0    0 20.4 37 220   M    M   3        47 220
 5  55  32  44  18  21   0 0.00  0.0    0 23.2 45 260   M    M   0 8      55 260
 6  36  27  32   6  33   0 0.00  0.0    0 10.9 17 230   M    M   5        21 230
 7  40  28  34   8  31   0 0.00  0.0    0 12.6 25 250   M    M   4        30 250
 8  30  -2  14 -12  51   0 0.21  5.7    1  7.2 33 330   M    M   9 128    41 320
 9  30  -8  11 -14  54   0 0.00  0.0    3 15.2 32 210   M    M   2 128    37 220
10  35  23  29   4  36   0 0.00  0.0    3 14.4 26 230   M    M   4        32 230
11  42  26  34   9  31   0 0.00  0.0    2 21.7 33 210   M    M   3        43 220
12  40  27  34   9  31   0    T    T    1  5.7 20 220   M    M  10 18     24 220
13  38  23  31   6  34   0 0.00  0.0    1 16.1 29 230   M    M   2 18     33 230
14  43  20  32   8  33   0 0.00  0.0    T 12.5 25 210   M    M   0        33 220
15  36  16  26   2  39   0 0.00  0.0    T 11.5 23 210   M    M   1        28 220
16  37  26  32   8  33   0 0.00  0.0    T 18.3 31 230   M    M   1        38 230
17  43  30  37  13  28   0 0.00  0.0    T 17.4 30 210   M    M   2        37 210
18  32  12  22  -2  43   0 0.00  0.0    T 16.8 29 250   M    M   7        36 250
19  32  12  22  -2  43   0 0.00  0.0    T 18.3 35 210   M    M   1        43 200
20  44  29  37  13  28   0 0.00  0.0    T 24.8 37 210   M    M   0        45 210
21  50  14  32   8  33   0 0.00  0.0    0 11.6 26 200   M    M   4        32 200
22  14  11  13 -11  52   0    T  0.3    0  7.0 14  40   M    M  10 18     16  40
23  19   3  11 -13  54   0 0.01  0.3    T  6.9 15  40   M    M   6 18     17  50
24   4  -7  -1 -25  66   0 0.22  2.8    2  5.1 10 330   M    M   9 18     12 340
25   6  -8  -1 -25  66   0 0.00  0.0    3  2.9  9  40   M    M   7 8      10  40
26   7  -3   2 -22  63   0 0.04  0.2    3  1.4  7  30   M    M   8 8       8  30
27  24  -4  10 -14  55   0 0.00  0.0    3  5.1 13 210   M    M   2        14 210
28  32  14  23  -1  42   0 0.00  0.0    2 10.2 15 230   M    M   3 18     16 230
29  32  19  26   2  39   0 0.02  0.5    2 11.3 22 210   M    M   2 18     25 210
30  27  10  19  -5  46   0 0.04  0.8    3 10.0 15 200   M    M   4 1      16 200
================================================================================
SM 1045  514      1163   0  0.55    10.6 392.5          M      114
================================================================================
AV 34.8 17.1                              13.1 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->  # 45 260               # 55  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:  GREAT FALLS MT
                                          MONTH:    DECEMBER
                                          YEAR:     2012
                                          LATITUDE:   47 28 N
                                          LONGITUDE: 111 22 W

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

AVERAGE MONTHLY: 26.0   TOTAL FOR MONTH:   0.55    1 = FOG OR MIST
DPTR FM NORMAL:   1.2   DPTR FM NORMAL:    0.02    2 = FOG REDUCING VISIBILITY
HIGHEST:    58 ON  2    GRTST 24HR  0.22 ON 23-24      TO 1/4 MILE OR LESS
LOWEST:     -8 ON 25, 9                            3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  10.6 INCHES  5 = HAIL
                        GRTST 24HR   5.7 ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   3 ON 30,27  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:  13    0.01 INCH OR MORE:   7
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   2
MIN 32 OR BELOW:  26    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   6    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.  1163    CLEAR  (SCALE 0-3)  15
DPTR FM NORMAL   -44    PTCLDY (SCALE 4-7)  10
TOTAL FM JUL 1  2780    CLOUDY (SCALE 8-10)  5
DPTR FM NORMAL  -396

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   484    HIGHEST SLP M ON M
DPTR FM NORMAL   186    LOWEST  SLP 29.22 ON  2

[REMARKS]
National Weather Service National Headquarters
