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000
CXUS55 KBOU 010900
CF6BDU
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   BOULDER AIRPORT
                                          MONTH:     MAY
                                          YEAR:      2021
                                          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  84  55  70   M   0   5 0.00    M    M  5.8 10 320   M    M   0        23  30
 2  68  43  56   M   9   0 1.05    M    M  6.5 23 320   M    M   5        33 320
 3  45  37  41   M  24   0 0.63    M    M  3.4 14  10   M    M  10        28  10
 4  59  36  48   M  17   0 0.00    M    M  2.4 13 270   M    M   6        21 330
 5  57  43  50   M  15   0 0.00    M    M  3.2 13  20   M    M   5        17 350
 6  68  39  54   M  11   0 0.00    M    M  2.8  6 310   M    M   0         M   M
 7  82  46  64   M   1   0 0.00    M    M  3.9 13 240   M    M   1        26  20
 8  72  43  58   M   7   0 0.13    M    M 10.3 28 240   M    M   3        43 240
 9  50  37  44   M  21   0 0.15    M    M  5.7 12 150   M    M   8        18 150
10  45  32  39   M  26   0 0.31    M    M  8.1 17 340   M    M  10        24 340
11  45  34  40   M  25   0 0.05    M    M  4.5  8 360   M    M  10 1       M   M
12  63  37  50   M  15   0 0.00    M    M  2.9  7  60   M    M   3         M   M
13  73  39  56   M   9   0 0.00    M    M  3.1 14  30   M    M   1        18  30
14  68  46  57   M   8   0 0.08    M    M  3.0  8 330   M    M   3 3      18 330
15  63  46  55   M  10   0 0.02    M    M  3.2 13 360   M    M   8 3      17 360
16  59  50  55   M  10   0 0.00    M    M  2.3 12  40   M    M   9         M   M
17  63  48  56   M   9   0 0.80    M    M  2.6  9  20   M    M   8 3       M   M
18  63  46  55   M  10   0 0.00    M    M  2.9  8 140   M    M   5         M   M
19   M   M   M   M   M   M 0.00    M    M  3.5  4 280   M    M   0         M   M
20   M   M   M   M   M   M 0.00    M    M    M  M   M   M    M   M         M   M
21  73  52  63   M   2   0 0.00    M    M  4.6 13 350   M    M   1        23 160
22  61  45  53   M  12   0 0.05    M    M  3.8 10 360   M    M   6         M   M
23  75  50  63   M   2   0 0.24    M    M  6.7 25 240   M    M   4 1      36 240
24  72  43  58   M   7   0 0.00    M    M  3.7  7 110   M    M   0         M   M
25  77  48  63   M   2   0 0.00    M    M  5.5 14 250   M    M   1        25 250
26  79  50  65   M   0   0 0.00    M    M  4.0 18 270   M    M   0        25 270
27  72  50  61   M   4   0 0.00    M    M  4.7 13 110   M    M   1        18 110
28  77  46  62   M   3   0 0.00    M    M  3.6  9 130   M    M   2        23 130
29  66  52  59   M   6   0 0.08    M    M  4.7  9 350   M    M   4         M   M
30  55  46  51   M  14   0 0.79    M    M  5.3 15 360   M    M  10 13     18  10
31  59  46  53   M  12   0 0.08    M    M  1.7  5 200   M    M   8 1       M   M
================================================================================
SM 1893 1285       291   5  4.46    M    128.2          M      132
================================================================================
AV 65.3 44.3                               4.3 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->    28 240                 43 240
================================================================================
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:     MAY
                                          YEAR:      2021
                                          LATITUDE:   40  2 N
                                          LONGITUDE: 105 14 W

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

AVERAGE MONTHLY: 54.8   TOTAL FOR MONTH:   4.46    1 = FOG OR MIST
DPTR FM NORMAL:   0.0   DPTR FM NORMAL:       M    2 = FOG REDUCING VISIBILITY
HIGHEST:    84 ON  1    GRTST 24HR  1.05 ON  2- 2      TO 1/4 MILE OR LESS
LOWEST:     32 ON 10                               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:  14
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   8
MIN 32 OR BELOW:   1    0.50 INCH OR MORE:   4
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   291    CLEAR  (SCALE 0-3)  14
DPTR FM NORMAL     M    PTCLDY (SCALE 4-7)  10
TOTAL FM JUL 1  5637    CLOUDY (SCALE 8-10)  7
DPTR FM NORMAL     M

[CDD (BASE 65) ]
TOTAL THIS MO.     5
DPTR FM NORMAL     M    [PRESSURE DATA]
TOTAL FM JAN 1     5    HIGHEST SLP M ON M
DPTR FM NORMAL     M    LOWEST  SLP M ON M

[REMARKS]
#FINAL-05-21#