WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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903
CXUS56 KMTR 190900
CF6APC
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: NAPA AIRPORT
MONTH: AUGUST
YEAR: 2025
LATITUDE: 38 13 N
LONGITUDE: 122 17 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 72 57 65 -2 0 0 0.00 M M 13.4 22 200 M M 5 29 200
2 74 52 63 -4 2 0 0.00 M M 11.5 20 200 M M 4 24 210
3 77 50 64 -3 1 0 0.00 M M 11.1 24 190 M M 3 12 30 190
4 84 50 67 0 0 2 0.00 M M 10.4 22 190 M M 0 27 190
5 76 50 63 -4 2 0 0.00 M M 9.1 18 200 M M 1 22 200
6 88 51 70 3 0 5 0.00 M M 7.0 17 200 M M 0 20 200
7 80 59 70 3 0 5 0.00 M M 9.1 16 210 M M 0 20 210
8 85 57 71 4 0 6 0.00 M M 6.0 13 200 M M 2 16 170
9 81 56 69 2 0 4 0.00 M M 8.3 17 190 M M 0 8 22 190
10 77 55 66 -1 0 1 0.00 M M 7.4 15 190 M M 2 20 190
11 76 56 66 -1 0 1 0.00 M M 12.0 20 240 M M 3 24 240
12 75 56 66 -1 0 1 0.00 M M 13.9 21 270 M M 5 26 260
13 79 58 69 2 0 4 0.00 M M 15.6 25 270 M M 6 30 260
14 75 57 66 -1 0 1 0.00 M M 11.5 23 200 M M 5 29 210
15 80 53 67 0 0 2 0.00 M M 8.5 21 190 M M 0 1 26 180
16 80 56 68 1 0 3 0.00 M M 11.4 23 190 M M 1 30 180
17 78 54 66 -1 0 1 0.00 M M 12.5 22 240 M M 1 30 250
18 82 49 66 -1 0 1 0.00 M M 6.5 18 200 M M 0 23 230
================================================================================
SM 1419 976 5 37 0.00 M 185.2 M 38
================================================================================
AV 78.8 54.2 10.3 FASTST M M 2 MAX(MPH)
MISC ----> 25 270 # 30 190
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES
COLUMN 17 PEAK WIND IN M.P.H.
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2
STATION: NAPA AIRPORT
MONTH: AUGUST
YEAR: 2025
LATITUDE: 38 13 N
LONGITUDE: 122 17 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 66.5 TOTAL FOR MONTH: 0.00 1 = FOG OR MIST
DPTR FM NORMAL: -0.5 DPTR FM NORMAL: -0.01 2 = FOG REDUCING VISIBILITY
HIGHEST: 88 ON 6 GRTST 24HR 0.00 ON 1- 1 TO 1/4 MILE OR LESS
LOWEST: 49 ON 18 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: 0 0.50 INCH OR MORE: 0
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 5 CLEAR (SCALE 0-3) 13
DPTR FM NORMAL 5 PTCLDY (SCALE 4-7) 5
TOTAL FM JUL 1 43 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL 24
[CDD (BASE 65) ]
TOTAL THIS MO. 37
DPTR FM NORMAL -10 [PRESSURE DATA]
TOTAL FM JAN 1 74 HIGHEST SLP M ON M
DPTR FM NORMAL -118 LOWEST SLP 29.79 ON 8
[REMARKS]