National Weather Service Weather Forecast Office

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

000
CXUS55 KBYZ 011000
CF6BIL
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   BILLINGS MT
                                          MONTH:     MAY
                                          YEAR:      2021
                                          LATITUDE:   45 47 N
                                          LONGITUDE: 108 32 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  76  50  63  13   2   0 0.31  0.0    0  9.2 37 320   M    M   8 13     49 330
 2  51  41  46  -4  19   0 0.17  0.0    0 11.7 22 360   M    M   9        26  20
 3  59  34  47  -4  18   0 0.00  0.0    0  6.4 13 150   M    M   3        16 150
 4  63  42  53   2  12   0    T  0.0    0  9.2 32 290   M    M   6        37 290
 5  63  39  51   0  14   0 0.01  0.0    0  7.2 26 280   M    M   6        33 280
 6  69  38  54   2  11   0 0.00  0.0    0  7.3 16  90   M    M   1        20  70
 7  72  43  58   6   7   0 0.03  0.0    0 11.5 43 320   M    M   7        53 320
 8  52  38  45  -7  20   0 0.27    T    0 15.2 32 320   M    M   9 1      39 310
 9  50  39  45  -8  20   0 0.07  0.0    0  7.8 24 350   M    M   9 3      30 340
10  51  39  45  -8  20   0    T  0.0    0  6.9 15  50   M    M   8        18  60
11  60  36  48  -6  17   0    T  0.0    0  6.1 20 320   M    M   6 3      27 210
12  66  39  53  -1  12   0 0.00  0.0    0  7.7 18 240   M    M   4        22 230
13  66  45  56   2   9   0 0.03  0.0    0  7.7 22 340   M    M   6 3      29 300
14  70  45  58   3   7   0 0.05  0.0    0  7.5 23 310   M    M   6 3      28 300
15  71  44  58   3   7   0 0.00  0.0    0  6.5 15 100   M    M   5        18  90
16  75  46  61   5   4   0 0.00  0.0    0  7.0 13 100   M    M   1        18 110
17  82  49  66  10   0   1 0.00  0.0    0  7.5 14 160   M    M   2        17 150
18  87  53  70  14   0   5    T  0.0    0  9.7 30 360   M    M   3        37  10
19  71  49  60   4   5   0 0.05  0.0    0 14.0 33 100   M    M   6        40 110
20  56  32  44 -13  21   0 0.09  0.1    0 13.7 26 360   M    M   9 14     32  10
21  34  31  33 -24  32   0 0.04    T    0  9.0 15  40   M    M  10 168    20  40
22  47  31  39 -19  26   0 0.00  0.0    0 10.1 18  50   M    M  10        23  40
23  66  42  54  -4  11   0 0.06  0.0    0 11.7 30 290   M    M   8 12     38 290
24  71  46  59   1   6   0 0.00  0.0    0 17.2 35 280   M    M   7        44 230
25  70  47  59   1   6   0    T  0.0    0 13.3 23 330   M    M   4        30 320
26  55  44  50  -9  15   0 0.01  0.0    0  9.5 17  90   M    M   9        23 100
27  70  44  57  -2   8   0 0.00  0.0    0  5.0 16 110   M    M   7        19 100
28  73  47  60   1   5   0 0.02  0.0    0  8.2 23  10   M    M   7 3      30  10
29  70  44  57  -3   8   0 0.00  0.0    0  7.3 15 330   M    M   4        20 240
30  74  40  57  -3   8   0 0.00  0.0    0  6.5 14  50   M    M   1        16  60
31  83  42  63   3   2   0 0.00  0.0    0  8.8 20  30   M    M   4        26 280
================================================================================
SM 2023 1299       352   6  1.21  0.1    286.4          M      185
================================================================================
AV 65.3 41.9                               9.2 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->    43 320                 53 320
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   BILLINGS MT
                                          MONTH:     MAY
                                          YEAR:      2021
                                          LATITUDE:   45 47 N
                                          LONGITUDE: 108 32 W

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

AVERAGE MONTHLY: 53.6   TOTAL FOR MONTH:   1.21    1 = FOG OR MIST
DPTR FM NORMAL:  -1.7   DPTR FM NORMAL:   -1.15    2 = FOG REDUCING VISIBILITY
HIGHEST:    87 ON 18    GRTST 24HR  0.48 ON  1- 2      TO 1/4 MILE OR LESS
LOWEST:     31 ON 22,21                             3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   0.1 INCH    5 = HAIL
                        GRTST 24HR   0.1 ON 20-20  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:  14
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   3    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   352    CLEAR  (SCALE 0-3)   5
DPTR FM NORMAL    38    PTCLDY (SCALE 4-7)  18
TOTAL FM JUL 1  6501    CLOUDY (SCALE 8-10)  8
DPTR FM NORMAL  -164

[CDD (BASE 65) ]
TOTAL THIS MO.     6
DPTR FM NORMAL    -8    [PRESSURE DATA]
TOTAL FM JAN 1    10    HIGHEST SLP 30.38 ON 22
DPTR FM NORMAL    -5    LOWEST  SLP 29.53 ON 18

[REMARKS]
#FINAL-05-21#