WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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CXUS56 KMTR 270900
CF6APC
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: NAPA AIRPORT
MONTH: SEPTEMBER
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 89 55 72 5 0 7 0.00 M M 4.7 12 180 M M 0 1 15 210
2 74 59 67 0 0 2 T M M 11.0 28 180 M M 0 35 190
3 80 52 66 -1 0 1 0.00 M M 6.9 16 210 M M 1 1 21 200
4 76 55 66 -1 0 1 0.00 M M 11.4 24 250 M M 5 1 30 250
5 78 58 68 1 0 3 0.00 M M 9.7 18 200 M M 5 22 210
6 78 58 68 1 0 3 0.00 M M 10.2 21 270 M M 4 25 280
7 80 51 66 -1 0 1 0.00 M M 9.0 17 250 M M 0 1 23 260
8 76 52 64 -2 1 0 0.00 M M 9.5 24 200 M M 3 1 30 200
9 75 61 68 2 0 3 T M M 9.5 21 200 M M 8 8 26 200
10 75 59 67 1 0 2 T M M 9.7 21 200 M M 7 26 190
11 75 62 69 3 0 4 0.00 M M 8.1 18 200 M M 5 23 200
12 74 57 66 0 0 1 0.00 M M 9.0 18 190 M M 5 24 210
13 74 56 65 -1 0 0 T M M 9.5 17 200 M M 4 23 220
14 85 47 66 0 0 1 0.00 M M 7.5 20 200 M M 0 1 24 200
15 91 61 76 10 0 11 0.00 M M 5.4 13 240 M M 4 17 220
16 87 55 71 5 0 6 0.00 M M 4.3 12 210 M M 0 15 220
17 89 55 72 6 0 7 0.00 M M 5.1 14 250 M M 0 18 270
18 73 61 67 1 0 2 0.00 M M 9.8 24 190 M M 1 32 200
19 78 58 68 3 0 3 T M M 7.2 17 210 M M 4 22 210
20 79 54 67 2 0 2 0.00 M M 6.3 21 260 M M 0 1 28 260
21 77 53 65 0 0 0 0.00 M M 5.5 14 200 M M 2 17 190
22 87 53 70 5 0 5 0.00 M M 4.1 10 220 M M 0 1 16 200
23 96 56 76 11 0 11 0.00 M M 4.7 12 170 M M 0 16 180
24 80 63 72 7 0 7 0.03 M M 7.3 18 210 M M 2 8 24 190
25 76 56 66 1 0 1 0.09 M M 10.0 22 270 M M 1 1 28 270
26 79 52 66 2 0 1 0.00 M M 4.8 15 190 M M 2 12 19 190
================================================================================
SM 2081 1459 1 85 0.12 M 200.2 M 63
================================================================================
AV 80.0 56.1 7.7 FASTST M M 2 MAX(MPH)
MISC ----> 28 180 35 190
================================================================================
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: SEPTEMBER
YEAR: 2025
LATITUDE: 38 13 N
LONGITUDE: 122 17 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 68.1 TOTAL FOR MONTH: 0.12 1 = FOG OR MIST
DPTR FM NORMAL: 2.2 DPTR FM NORMAL: 0.08 2 = FOG REDUCING VISIBILITY
HIGHEST: 96 ON 23 GRTST 24HR 0.12 ON 24-25 TO 1/4 MILE OR LESS
LOWEST: 47 ON 14 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: 2 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. 1 CLEAR (SCALE 0-3) 15
DPTR FM NORMAL -35 PTCLDY (SCALE 4-7) 11
TOTAL FM JUL 1 46 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL -24
[CDD (BASE 65) ]
TOTAL THIS MO. 85
DPTR FM NORMAL 25 [PRESSURE DATA]
TOTAL FM JAN 1 196 HIGHEST SLP M ON M
DPTR FM NORMAL -93 LOWEST SLP 29.73 ON 26
[REMARKS]