WFO Monthly/Daily Climate Data
Issued by NWS Missoula, MT

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143
CXUS55 KMSO 270900
CF6BTM
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   BUTTE MT
                                          MONTH:     MAY
                                          YEAR:      2026
                                          LATITUDE:   45 57 N
                                          LONGITUDE: 112 30 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  67  24  46   3  19   0 0.00    M    M  3.0 10 260   M    M   0        14 250
 2  69  28  49   6  16   0 0.00    M    M  4.9 17 340   M    M   0        23 290
 3  70  30  50   7  15   0 0.00    M    M  6.5 18 310   M    M   0        26 320
 4  58  36  47   3  18   0 0.00    M    M  8.5 20  20   M    M   5        28  30
 5  48  25  37  -7  28   0 0.00    M    M  5.5 20  30   M    M   7 18     27  20
 6  65  22  44   0  21   0    T    M    M  8.0 24 290   M    M   5        36 340
 7  66  36  51   6  14   0 0.00    M    M  8.0 21 310   M    M   3        29 280
 8  69  30  50   5  15   0 0.00    M    M  7.8 21 290   M    M   1        29 290
 9  64  34  49   4  16   0 0.00    M    M  5.7 16 320   M    M   2        23 340
10  77  30  54   8  11   0 0.00    M    M  5.6 17 270   M    M   0        28 270
11  74  41  58  12   7   0 0.00    M    M  8.2 22 300   M    M   0        32 320
12  80  30  55   9  10   0 0.00    M    M  5.1 14 300   M    M   0        19 290
13  81  45  63  16   2   0 0.07    M    M 10.2 41 190   M    M   2 38     67 190
14  61  42  52   5  13   0 0.00    M    M 13.4 28 270   M    M   5        46 290
15  58  37  48   0  17   0 0.00    M    M  7.4 17 280   M    M   5        35 280
16  43  32  38 -10  27   0    T    M    M  4.6  5 340   M    M  10         M   M
17  43  25  34 -14  31   0    T    M    M  7.2 17 290   M    M   7        29 360
18  46  27  37 -11  28   0 0.00    M    M  5.5 14 310   M    M   7        20 350
19  53  19  36 -13  29   0    T    M    M  6.3 26 310   M    M   3        35 310
20  56  27  42  -7  23   0 0.15    M    M  6.9 24 310   M    M   7 18     36 310
21  53  34  44  -5  21   0 0.04    M    M  6.7 16 340   M    M   9 1      24 250
22  61  27  44  -6  21   0 0.00    M    M  3.6 15 320   M    M   3        21 300
23  69  34  52   2  13   0 0.00    M    M  5.8 16 310   M    M   3        23  10
24  76  34  55   5  10   0 0.00    M    M  6.5 23 320   M    M   0        31 290
25  77  35  56   6   9   0    T    M    M  6.9 33 190   M    M   2        49 210
26  73  46  60   9   5   0 0.07    M    M  7.3 32 160   M    M   3 3      39 160
================================================================================
SM 1657  830       439   0  0.33    M    175.1          M       89
================================================================================
AV 63.7 31.9                               6.7 FASTST   M    M   3    MAX(MPH)
                                 MISC ---->    41 190                 67 190
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   BUTTE MT
                                          MONTH:     MAY
                                          YEAR:      2026
                                          LATITUDE:   45 57 N
                                          LONGITUDE: 112 30 W

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

AVERAGE MONTHLY: 47.8   TOTAL FOR MONTH:   0.33    1 = FOG OR MIST
DPTR FM NORMAL:   1.0   DPTR FM NORMAL:   -1.24    2 = FOG REDUCING VISIBILITY
HIGHEST:    81 ON 13    GRTST 24HR  0.19 ON 20-21      TO 1/4 MILE OR LESS
LOWEST:     19 ON 19                               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:   0    0.01 INCH OR MORE:   4
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   1
MIN 32 OR BELOW:  14    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   439    CLEAR  (SCALE 0-3)  12
DPTR FM NORMAL   -31    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  6991    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL -1778

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1     0    HIGHEST SLP M ON M
DPTR FM NORMAL     0    LOWEST  SLP 29.44 ON 13

[REMARKS]