WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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031
CXUS56 KMTR 050900
CF6APC
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: NAPA AIRPORT
MONTH: MAY
YEAR: 2026
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 66 49 58 0 7 0 0.00 M M 7.8 16 200 M M 6 20 200
2 64 52 58 0 7 0 0.00 M M 10.1 18 190 M M 7 1 23 190
3 66 52 59 1 6 0 0.00 M M 9.8 18 200 M M 8 24 210
4 64 46 55 -3 10 0 0.32 M M 7.7 15 290 M M 6 1 20 300
================================================================================
SM 260 199 30 0 0.32 M 35.4 M 27
================================================================================
AV 65.0 49.8 8.9 FASTST M M 7 MAX(MPH)
MISC ----> # 18 190 24 210
================================================================================
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: MAY
YEAR: 2026
LATITUDE: 38 13 N
LONGITUDE: 122 17 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 57.4 TOTAL FOR MONTH: 0.32 1 = FOG OR MIST
DPTR FM NORMAL: -0.6 DPTR FM NORMAL: 0.20 2 = FOG REDUCING VISIBILITY
HIGHEST: 66 ON 3, 1 GRTST 24HR 0.32 ON 4- 4 TO 1/4 MILE OR LESS
LOWEST: 46 ON 4 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: 1
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. 30 CLEAR (SCALE 0-3) 0
DPTR FM NORMAL 2 PTCLDY (SCALE 4-7) 4
TOTAL FM JUL 1 2235 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL -540
[CDD (BASE 65) ]
TOTAL THIS MO. 0
DPTR FM NORMAL 0 [PRESSURE DATA]
TOTAL FM JAN 1 8 HIGHEST SLP M ON M
DPTR FM NORMAL 6 LOWEST SLP 29.82 ON 3
[REMARKS]