National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
CXUS56 KTFX 011534
CF6GTF
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   GREAT FALLS MT
                                          MONTH:     DECEMBER
                                          YEAR:      2020
                                          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  40  19  30   3  35   0    T    T    0  7.4 20 360   M    M   6        27 290
 2  44  20  32   5  33   0 0.00  0.0    0 15.0 22 210   M    M   0        27 200
 3  52  33  43  16  22   0 0.00  0.0    0 19.3 25 210   M    M   0        32 220
 4  57  29  43  17  22   0 0.00  0.0    0 14.7 25 210   M    M   0        33 200
 5  54  29  42  16  23   0 0.00  0.0    0 14.2 21 220   M    M   0        26 220
 6  56  32  44  18  21   0 0.00  0.0    0 15.4 26 220   M    M   0        34 230
 7  55  35  45  19  20   0 0.00  0.0    0 21.5 30 220   M    M   0        38 230
 8  63  51  57  31   8   0 0.00  0.0    0 26.8 46 230   M    M   0        61 220
 9  59  32  46  21  19   0    T    T    0 11.8 28 270   M    M   5 1      37 270
10  41  22  32   7  33   0 0.00  0.0    0  5.1 10  90   M    M   5 12     15  70
11  26  22  24  -1  41   0 0.09  0.9    T  5.5 10 360   M    M  10 12     13 350
12  23  14  19  -6  46   0    T  0.2    1  5.8 14 330   M    M   7 1      17 340
13  20   9  15 -10  50   0    T    T    1  6.7 15  50   M    M  10 12     19  50
14  30   1  16  -8  49   0    T    T    1  5.8 13 200   M    M   6 128    16 220
15  36  20  28   4  37   0 0.00  0.0    1 21.5 35 220   M    M   2        44 230
16  43  27  35  11  30   0 0.00  0.0    T 15.9 24 190   M    M   1        33 190
17  47  31  39  15  26   0 0.00  0.0    0 18.5 32 220   M    M   2        43 210
18  44  25  35  11  30   0    T    T    0 17.9 36 230   M    M   3        50 220
19  49  33  41  17  24   0 0.00  0.0    0 23.5 43 230   M    M   0        55 230
20  52  32  42  18  23   0 0.00  0.0    0 23.0 45 240   M    M   0        59 250
21  43  26  35  11  30   0 0.01  0.0    0  9.8 17 230   M    M   6 12     22 230
22  45  18  32   8  33   0    T    T    0 19.2 33 330   M    M   7 18     46 330
23  34  11  23  -1  42   0 0.00  0.0    0 16.1 26 240   M    M   1        35 210
24  49  28  39  15  26   0 0.00  0.0    0 22.6 33 220   M    M   0        43 230
25  47  36  42  18  23   0 0.00  0.0    0 17.0 25 220   M    M   1        32 220
26  49  23  36  12  29   0    T    T    0 13.6 28 230   M    M   4        35 230
27  30  12  21  -3  44   0 0.00  0.0    0  4.3  9  80   M    M   6 18     11  80
28  41  11  26   2  39   0 0.00  0.0    0 11.6 23 220   M    M   0 1      29 220
29  34  14  24   0  41   0 0.00  0.0    0  9.0 14 210   M    M   3        18 230
30  41  25  33   9  32   0 0.00  0.0    0 21.4 30 230   M    M   4        39 220
31  44  29  37  13  28   0 0.00  0.0    0 18.7 28 220   M    M   2        35 230
================================================================================
SM 1348  749       959   0  0.10  1.1    458.6          M       91
================================================================================
AV 43.5 24.2                              14.8 FASTST   M    M   3    MAX(MPH)
                                 MISC ---->    46 230                 61 220
================================================================================
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:      2020
                                          LATITUDE:   47 28 N
                                          LONGITUDE: 111 22 W

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

AVERAGE MONTHLY: 33.8   TOTAL FOR MONTH:   0.10    1 = FOG OR MIST
DPTR FM NORMAL:   9.0   DPTR FM NORMAL:   -0.45    2 = FOG REDUCING VISIBILITY
HIGHEST:    63 ON  8    GRTST 24HR  0.09 ON 11-11      TO 1/4 MILE OR LESS
LOWEST:      1 ON 14                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   1.1 INCHES  5 = HAIL
                        GRTST 24HR   0.9 ON 11-11  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   1 ON 15,14  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:   5    0.01 INCH OR MORE:   2
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   0
MIN 32 OR BELOW:  26    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   959    CLEAR  (SCALE 0-3)  18
DPTR FM NORMAL  -289    PTCLDY (SCALE 4-7)  11
TOTAL FM JUL 1  2800    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL  -417

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   307    HIGHEST SLP 30.63 ON  2
DPTR FM NORMAL     9    LOWEST  SLP 29.35 ON 22

[REMARKS]
#FINAL-12-20#