WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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064
CXUS56 KMTR 180900
CF6APC
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: NAPA AIRPORT
MONTH: APRIL
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 59 42 51 -3 14 0 0.22 M M 13.9 31 260 M M 6 1 43 250
2 63 35 49 -5 16 0 T M M 5.6 20 270 M M 1 24 270
3 65 36 51 -3 14 0 0.00 M M 5.7 17 280 M M 1 1 22 300
4 73 37 55 1 10 0 0.00 M M 4.7 21 280 M M 0 25 280
5 72 41 57 3 8 0 0.00 M M 5.3 14 270 M M 0 18 270
6 70 39 55 0 10 0 0.00 M M 4.4 15 280 M M 1 1 18 270
7 67 51 59 4 6 0 0.01 M M 11.3 21 270 M M 5 1 28 280
8 68 46 57 2 8 0 0.00 M M 6.0 14 220 M M 0 18 17 220
9 77 43 60 5 5 0 0.00 M M 3.8 13 280 M M 0 16 280
10 70 44 57 2 8 0 0.00 M M 6.3 20 260 M M 1 1 24 260
11 73 49 61 6 4 0 0.00 M M 7.4 18 230 M M 0 25 220
12 66 40 53 -2 12 0 0.00 M M 7.2 14 200 M M 1 12 18 200
13 77 40 59 4 6 0 0.00 M M 4.3 15 270 M M 0 20 280
14 72 45 59 3 6 0 0.00 M M 7.2 17 190 M M 0 21 200
15 61 50 56 0 9 0 0.00 M M 11.6 20 290 M M 7 24 280
16 63 51 57 1 8 0 T M M 11.6 20 270 M M 8 27 270
17 64 51 58 2 7 0 T M M 7.4 18 270 M M 8 25 270
================================================================================
SM 1160 740 151 0 0.23 M 123.7 M 39
================================================================================
AV 68.2 43.5 7.3 FASTST M M 2 MAX(MPH)
MISC ----> 31 260 43 250
================================================================================
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: APRIL
YEAR: 2025
LATITUDE: 38 13 N
LONGITUDE: 122 17 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 55.9 TOTAL FOR MONTH: 0.23 1 = FOG OR MIST
DPTR FM NORMAL: 0.9 DPTR FM NORMAL: -0.65 2 = FOG REDUCING VISIBILITY
HIGHEST: 77 ON 13, 9 GRTST 24HR 0.22 ON 31- 1 TO 1/4 MILE OR LESS
LOWEST: 35 ON 2 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: 2
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 1
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. 151 CLEAR (SCALE 0-3) 12
DPTR FM NORMAL -20 PTCLDY (SCALE 4-7) 4
TOTAL FM JUL 1 2407 CLOUDY (SCALE 8-10) 1
DPTR FM NORMAL -233
[CDD (BASE 65) ]
TOTAL THIS MO. 0
DPTR FM NORMAL 0 [PRESSURE DATA]
TOTAL FM JAN 1 2 HIGHEST SLP M ON M
DPTR FM NORMAL 2 LOWEST SLP 29.82 ON 2
[REMARKS]