WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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CXUS56 KMTR 301000
CF6SFO
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: SAN FRANCISCO AIRPORT
MONTH: DECEMBER
YEAR: 2025
LATITUDE: 37 37 N
LONGITUDE: 122 23 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 53 46 50 -3 15 0 0.00 M M 8.5 18 80 M M 5 8 21 80
2 59 45 52 -1 13 0 0.00 M M 5.9 15 280 M M 4 18 19 260
3 63 46 55 2 10 0 0.00 M M 5.0 17 90 M M 6 18 22 80
4 55 44 50 -2 15 0 0.00 M M 4.3 12 60 M M 3 18 15 30
5 56 43 50 -2 15 0 0.00 M M 4.7 10 20 M M 2 18 13 40
6 53 46 50 -2 15 0 0.00 M M 6.8 14 20 M M 6 18 17 20
7 52 46 49 -3 16 0 0.00 M M 5.0 12 10 M M 8 18 14 30
8 54 45 50 -2 15 0 0.00 M M 6.0 14 90 M M 5 1 17 80
9 54 45 50 -2 15 0 0.00 M M 5.1 15 360 M M 4 18 22 360
10 55 44 50 -2 15 0 0.00 M M 4.8 10 30 M M 1 18 13 30
11 54 45 50 -2 15 0 0.00 M M 5.4 12 20 M M 2 18 14 80
12 53 45 49 -3 16 0 0.00 M M 6.9 17 70 M M 1 18 20 70
13 53 43 48 -3 17 0 0.00 M M 4.7 12 20 M M 4 18 14 30
14 50 45 48 -3 17 0 0.00 M M 6.2 13 30 M M 7 18 16 20
15 52 44 48 -3 17 0 0.00 M M 4.7 13 340 M M 8 18 15 340
16 57 48 53 2 12 0 0.00 M M 3.8 12 10 M M 7 18 14 10
17 63 51 57 6 8 0 0.11 M M 6.7 18 270 M M 7 18 23 290
18 56 48 52 1 13 0 0.00 M M 3.4 10 290 M M 8 18 13 290
19 64 54 59 8 6 0 0.10 M M 5.8 16 230 M M 9 18 22 210
20 62 56 59 8 6 0 0.03 M M 4.3 15 190 M M 10 1 21 190
21 62 58 60 9 5 0 0.24 M M 10.6 23 170 M M 9 18 31 170
22 65 57 61 10 4 0 0.83 M M 6.9 21 180 M M 9 1 30 160
23 63 55 59 8 6 0 0.07 M M 9.6 26 140 M M 9 18 38 140
24 64 56 60 9 5 0 0.90 M M 14.9 37 180 M M 8 18 53 210
25 62 52 57 6 8 0 1.00 M M 21.8 53 170 M M 8 138 72 230
26 60 51 56 5 9 0 0.17 M M 13.5 31 210 M M 6 138 46 210
27 55 46 51 0 14 0 T M M 6.5 18 300 M M 4 18 25 300
28 57 43 50 -1 15 0 0.00 M M 4.1 15 70 M M 1 1 18 70
29 62 45 54 3 11 0 0.00 M M 6.9 14 140 M M 1 8 18 140
================================================================================
SM 1668 1392 348 0 3.45 M 202.8 M 162
================================================================================
AV 57.5 48.0 7.0 FASTST M M 6 MAX(MPH)
MISC ----> 53 170 72 230
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES
COLUMN 17 PEAK WIND IN M.P.H.
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2
STATION: SAN FRANCISCO AIRPORT
MONTH: DECEMBER
YEAR: 2025
LATITUDE: 37 37 N
LONGITUDE: 122 23 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 52.8 TOTAL FOR MONTH: 3.45 1 = FOG OR MIST
DPTR FM NORMAL: 1.2 DPTR FM NORMAL: -0.43 2 = FOG REDUCING VISIBILITY
HIGHEST: 65 ON 22 GRTST 24HR 1.16 ON 24-25 TO 1/4 MILE OR LESS
LOWEST: 43 ON 28,13 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: 9
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 7
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 3
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1
[HDD (BASE 65) ]
TOTAL THIS MO. 348 CLEAR (SCALE 0-3) 6
DPTR FM NORMAL -43 PTCLDY (SCALE 4-7) 15
TOTAL FM JUL 1 699 CLOUDY (SCALE 8-10) 8
DPTR FM NORMAL -200
[CDD (BASE 65) ]
TOTAL THIS MO. 0
DPTR FM NORMAL 0 [PRESSURE DATA]
TOTAL FM JAN 1 150 HIGHEST SLP M ON M
DPTR FM NORMAL -51 LOWEST SLP 29.47 ON 24
[REMARKS]