WFO Monthly/Daily Climate Data
Issued by NWS

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000
CXUS55 KBOU 180900
CF6BDU
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   Boulder Airport
                                          MONTH:     APRIL
                                          YEAR:      2018
                                          LATITUDE:   40  2 N
                                          LONGITUDE: 105 14 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  46  27  37   M  28   0    M    M    M  3.2  7 340   M    M   5         M  M
 2  73  32  53   M  12   0    M    M    M 10.7 28 240   M    M   1        39 250
 3  52  32  42   M  23   0    M    M    M 11.5 31 290   M    M   0        44 290
 4  61  28  45   M  20   0    M    M    M  6.1 15  60   M    M   0        21  60
 5  64  41  53   M  12   0    M    M    M  6.0 15 270   M    M   3        23 260
 6  45  25  35   M  30   0    M    M    M  6.4 15 360   M    M   9        20 360
 7  59  23  41   M  24   0    M    M    M  2.5  8 130   M    M   6        17 130
 8  61  46  54   M  11   0    M    M    M 11.0 29 260   M    M   2        40 260
 9  59  34  47   M  18   0    M    M    M  5.8 14 310   M    M   5        18 110
10  70  36  53   M  12   0    M    M    M  4.9 13 240   M    M   0        21 240
11  77  52  65   M   0   0    M    M    M 13.7 39 270   M    M   0        64 270
12  77  45  61   M   4   0    M    M    M  8.3 27 210   M    M   1        35 210
13  46  34  40   M  25   0    M    M    M  9.7 16 320   M    M   9        29 290
14  57  32  45   M  20   0    M    M    M  4.9 14 320   M    M   4        18 320
15  61  32  47   M  18   0    M    M    M  2.7  9 120   M    M   3         M  M
16  64  34  49   M  16   0    M    M    M  1.3  6 240   M    M   0         M  M
17  68  37  53   M  12   0    M    M    M 16.8 48 270   M    M   1        66 270
================================================================================
SM 1040  590       285   0    M     M    125.5          M       49
================================================================================
AV 61.2 34.7                               7.4 FASTST   M    M   3    MAX(MPH)
                                 MISC ---->  # 48 270               # 66  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:  Boulder Airport
                                          MONTH:    APRIL
                                          YEAR:     2018
                                          LATITUDE:   40  2 N
                                          LONGITUDE: 105 14 W

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

AVERAGE MONTHLY: 47.9   TOTAL FOR MONTH:      M    1 = FOG OR MIST
DPTR FM NORMAL:     M   DPTR FM NORMAL:       M    2 = FOG REDUCING VISIBILITY
HIGHEST:    77 ON 12,11 GRTST 24HR    M  ON   M        TO 1/4 MILE OR LESS
LOWEST:     23 ON  7                               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:   0
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   0
MIN 32 OR BELOW:   8    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   285    CLEAR  (SCALE 0-3)  10
DPTR FM NORMAL     M    PTCLDY (SCALE 4-7)   5
TOTAL FM JUL 1  4746    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL     M

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

[REMARKS]


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