WFO Monthly/Daily Climate Data
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000
CXUS55 KRIW 180945
CF6RKS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   ROCK SPRINGS WY
                                          MONTH:     DECEMBER
                                          YEAR:      2018
                                          LATITUDE:   41 35 N
                                          LONGITUDE: 109  4 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  26  12  19  -5  46   0    T    M    M 16.1 30 260   M    M   3 1      35 260
 2  25   7  16  -7  49   0 0.00    M    M  6.8 17  70   M    M   3        22  60
 3  22   8  15  -8  50   0    T    M    M 10.6 20 250   M    M   8 1      24 250
 4  18   6  12 -10  53   0 0.00    M    M 14.6 24 260   M    M   0        28 260
 5  18   0   9 -13  56   0    T    M    M  3.3 20  70   M    M   7 18     22  70
 6  24   9  17  -5  48   0    T    M    M  4.8 16  60   M    M   5 1      19  60
 7  23   0  12 -10  53   0 0.00    M    M  1.7  7 220   M    M   6 12      8 170
 8  33  11  22   0  43   0 0.00    M    M 11.1 24 270   M    M   3        28 270
 9  27  10  19  -2  46   0 0.00    M    M  7.4 17 260   M    M   1 12     19 260
10  19  -2   9 -12  56   0 0.00    M    M  3.1 12 300   M    M   4 128    13 300
11  27   8  18  -3  47   0 0.00    M    M 13.3 28 250   M    M   1        31 250
12  28  12  20  -1  45   0    T    M    M 15.0 40 270   M    M   6 18     49 270
13  25  13  19  -2  46   0 0.00    M    M 17.4 29 250   M    M   0        32 250
14  30  11  21   0  44   0 0.00    M    M  4.3 15 230   M    M   0        17 250
15  37   8  23   2  42   0 0.00    M    M  7.0 17 240   M    M   1        19 240
16  33  11  22   2  43   0 0.00999.0    M  2.4  9 130   M    M   0         9 130
17  27   6  17  -3  48   0 0.00    M    M  4.3 16 130   M    M   2 1      22 210
================================================================================
SM  442  130       815   0    T    999.0 143.2          M       50
================================================================================
AV 26.0  7.7                               8.4 FASTST   M    M   3    MAX(MPH)
                                 MISC ---->  # 40 270               # 49  270
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:  ROCK SPRINGS WY
                                          MONTH:    DECEMBER
                                          YEAR:     2018
                                          LATITUDE:   41 35 N
                                          LONGITUDE: 109  4 W

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

AVERAGE MONTHLY: 16.8   TOTAL FOR MONTH:      T    1 = FOG OR MIST
DPTR FM NORMAL:  -4.8   DPTR FM NORMAL:   -0.28    2 = FOG REDUCING VISIBILITY
HIGHEST:    37 ON 15    GRTST 24HR    T  ON 12-12      TO 1/4 MILE OR LESS
LOWEST:     -2 ON 10                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH: 999.0 INCHES  5 = HAIL
                        GRTST 24HR 999.0 ON 16-16  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:  14    0.01 INCH OR MORE:   0
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   0
MIN 32 OR BELOW:  17    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   3    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   815    CLEAR  (SCALE 0-3)   9
DPTR FM NORMAL    79    PTCLDY (SCALE 4-7)   7
TOTAL FM JUL 1  2729    CLOUDY (SCALE 8-10)  1
DPTR FM NORMAL     0

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   399    HIGHEST SLP M ON M
DPTR FM NORMAL   113    LOWEST  SLP 29.75 ON 12

[REMARKS]


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