WFO Monthly/Daily Climate Data
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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CXUS51 KGYX 241000
CF6PWM
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: PORTLAND ME
MONTH: DECEMBER
YEAR: 2025
LATITUDE: 43 39 N
LONGITUDE: 70 19 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 39 22 31 -4 34 0 0.00 0.0 0 8.3 23 320 M M 2 33 300
2 27 21 24 -10 41 0 0.57 4.4 T 7.8 17 10 M M 9 1 27 360
3 36 23 30 -4 35 0 0.01 0.2 3 6.9 21 360 M M 5 1 28 360
4 38 9 24 -10 41 0 T T 3 12.7 32 310 M M 7 44 310
5 22 2 12 -22 53 0 0.00 0.0 2 4.6 17 300 M M 2 22 310
6 27 11 19 -14 46 0 0.02 T 2 1.9 6 280 M M 9 1 7 60
7 34 15 25 -8 40 0 0.00 0.0 2 4.0 12 290 M M 6 1 15 310
8 31 5 18 -15 47 0 0.00 0.0 2 10.4 21 330 M M 2 33 290
9 25 -3 11 -21 54 0 T 0.1 2 3.6 14 210 M M 4 22 190
10 36 24 30 -2 35 0 0.11 T 2 3.1 9 230 M M 10 148 15 200
11 36 19 28 -4 37 0 0.00 0.0 1 15.3 29 290 M M 3 41 300
12 29 18 24 -7 41 0 0.00 0.0 3 14.2 29 280 M M 3 39 280
13 33 12 23 -8 42 0 0.00 0.0 1 4.6 12 220 M M 7 18 230
14 30 15 23 -8 42 0 0.20 2.2 1 9.3 21 340 M M 10 12 28 350
15 23 9 16 -14 49 0 0.00 0.0 3 10.0 21 320 M M 2 30 340
16 34 18 26 -4 39 0 0.00 0.0 3 5.3 13 220 M M 3 8 17 220
17 41 26 34 4 31 0 0.00 0.0 3 8.6 18 220 M M 5 8 27 210
18 42 21 32 2 33 0 0.00 0.0 2 6.0 17 290 M M 2 26 190
19 53 35 44 15 21 0 0.52 0.0 T 13.2 33 170 M M 9 12 56 170
20 38 28 33 4 32 0 0.00 0.0 0 10.0 30 260 M M 3 44 290
21 45 27 36 7 29 0 0.00 0.0 0 12.8 30 280 M M 5 46 290
22 27 18 23 -6 42 0 0.00 0.0 0 8.8 21 310 M M 1 30 310
23 35 21 28 0 37 0 0.34 1.2 0 2.6 9 100 M M 9 1 13 90
================================================================================
SM 781 396 901 0 1.77 8.1 184.0 M 118
================================================================================
AV 34.0 17.2 8.0 FASTST M M 5 MAX(MPH)
MISC ----> 33 170 56 170
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES
COLUMN 17 PEAK WIND IN M.P.H.
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2
STATION: PORTLAND ME
MONTH: DECEMBER
YEAR: 2025
LATITUDE: 43 39 N
LONGITUDE: 70 19 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 25.6 TOTAL FOR MONTH: 1.77 1 = FOG OR MIST
DPTR FM NORMAL: -5.8 DPTR FM NORMAL: -1.64 2 = FOG REDUCING VISIBILITY
HIGHEST: 53 ON 19 GRTST 24HR 0.58 ON 2- 3 TO 1/4 MILE OR LESS
LOWEST: -3 ON 9 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: 8.1 INCHES 5 = HAIL
GRTST 24HR 4.4 ON 2- 2 6 = FREEZING RAIN OR DRIZZLE
GRTST DEPTH: 3 ON 17,16 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: 9 0.01 INCH OR MORE: 7
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5
MIN 32 OR BELOW: 22 0.50 INCH OR MORE: 2
MIN 0 OR BELOW: 1 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 901 CLEAR (SCALE 0-3) 8
DPTR FM NORMAL 131 PTCLDY (SCALE 4-7) 9
TOTAL FM JUL 1 2207 CLOUDY (SCALE 8-10) 6
DPTR FM NORMAL 59
[CDD (BASE 65) ]
TOTAL THIS MO. 0
DPTR FM NORMAL 0 [PRESSURE DATA]
TOTAL FM JAN 1 440 HIGHEST SLP M ON M
DPTR FM NORMAL -6 LOWEST SLP 29.07 ON 19
[REMARKS]