WFO Monthly/Daily Climate Data Issued by NWS
000
CXUS55 KBOU 010900
CF6BDU
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: BOULDER AIRPORT
MONTH: APRIL
YEAR: 2021
LATITUDE: 40 2 N
LONGITUDE: 105 14 W
TEMPERATURE IN F: :PCPN: SNOW: WIND :SUNSHINE: SKY :PK WND
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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
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1 70 28 49 M 16 0 0.00 M M 4.1 9 230 M M 0 M M
2 73 39 56 M 9 0 0.00 M M 3.8 8 220 M M 0 18 160
3 79 39 59 M 6 0 0.00 M M 3.9 9 110 M M 0 17 120
4 79 50 65 M 0 0 0.00 M M 6.3 15 290 M M 0 24 290
5 79 48 64 M 1 0 0.00 M M 6.2 16 360 M M 0 29 360
6 54 36 45 M 20 0 0.10 M M 5.4 13 350 M M 4 22 330
7 63 32 48 M 17 0 0.00 M M 5.9 24 270 M M 4 35 270
8 70 39 55 M 10 0 0.00 M M 9.8 21 250 M M 1 33 260
9 55 36 46 M 19 0 0.00 M M 6.4 18 250 M M 2 31 250
10 68 30 49 M 16 0 0.00 M M 5.5 22 280 M M 0 31 280
11 55 34 45 M 20 0 0.00 M M 6.0 10 50 M M 4 25 0
12 41 30 36 M 29 0 0.00 M M 3.0 8 350 M M 8 M M
13 39 28 34 M 31 0 0.01 M M 4.7 10 270 M M 10 18 0
14 41 28 35 M 30 0 0.00 M M 4.2 13 350 M M 10 16 350
15 37 30 34 M 31 0 0.19 M M 5.9 12 360 M M 10 1 17 360
16 36 28 32 M 33 0 0.04 M M 1.6 7 360 M M 9 M M
17 45 30 38 M 27 0 0.00 M M 2.8 8 240 M M 2 16 240
18 57 34 46 M 19 0 0.00 M M 6.0 15 270 M M 0 25 0
19 48 21 35 M 30 0 0.37 M M 6.0 20 20 M M 8 1 31 20
20 34 16 25 M 40 0 0.00 M M 2.7 7 50 M M 2 M M
21 32 28 30 M 35 0 0.00 M M 2.5 7 30 M M 8 M M
22 50 32 41 M 24 0 0.00 M M 3.9 14 250 M M 3 1 24 250
23 55 37 46 M 19 0 0.00 M M 5.7 22 290 M M 1 32 290
24 63 34 49 M 16 0 0.00 M M 2.4 8 310 M M 3 M M
25 81 43 62 M 3 0 0.00 M M 4.3 9 240 M M 0 17 110
26 77 50 64 M 1 0 0.00 M M 8.2 16 300 M M 0 38 170
27 59 37 48 M 17 0 0.58 M M 6.8 20 360 M M 5 3 26 0
28 61 37 49 M 16 0 0.21 M M 2.1 7 240 M M 6 M M
29 70 43 57 M 8 0 0.00 M M 4.3 8 240 M M 0 M M
30 79 46 63 M 2 0 0.00 M M 3.8 8 240 M M 0 M M
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SM 1750 1043 545 0 1.50 M 144.2 M 100
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AV 58.3 34.8 4.8 FASTST M M 3 MAX(MPH)
MISC ----> 24 270 38 170
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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: 2021
LATITUDE: 40 2 N
LONGITUDE: 105 14 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 46.6 TOTAL FOR MONTH: 1.50 1 = FOG OR MIST
DPTR FM NORMAL: 0.0 DPTR FM NORMAL: M 2 = FOG REDUCING VISIBILITY
HIGHEST: 81 ON 25 GRTST 24HR 0.58 ON 27-27 TO 1/4 MILE OR LESS
LOWEST: 16 ON 20 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: 1 0.01 INCH OR MORE: 7
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5
MIN 32 OR BELOW: 13 0.50 INCH OR MORE: 1
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 545 CLEAR (SCALE 0-3) 18
DPTR FM NORMAL M PTCLDY (SCALE 4-7) 8
TOTAL FM JUL 1 5346 CLOUDY (SCALE 8-10) 4
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]
#FINAL-04-21#