WFO Monthly/Daily Climate Data
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CXUS51 KOKX 291010
CF6ISP
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: ISLIP NY
MONTH: DECEMBER
YEAR: 2025
LATITUDE: 40 47 N
LONGITUDE: 73 6 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 46 30 38 -3 27 0 0.00 0.0 0 8.8 23 340 M M 5 33 330
2 47 31 39 -2 26 0 1.33 0.0 0 10.7 23 350 M M 8 1 32 340
3 43 27 35 -5 30 0 T T 0 9.9 25 340 M M 5 38 330
4 45 26 36 -4 29 0 0.00 0.0 0 12.5 28 320 M M 3 42 320
5 36 21 29 -11 36 0 0.00 0.0 0 6.3 16 10 M M 6 23 10
6 46 31 39 -1 26 0 T 0.0 0 4.4 13 270 M M 8 18 280
7 45 26 36 -3 29 0 0.00 0.0 0 5.7 17 300 M M 5 26 300
8 39 24 32 -7 33 0 0.00 0.0 0 11.1 24 340 M M 6 33 340
9 41 21 31 -8 34 0 0.00 0.0 0 8.9 21 230 M M 4 30 230
10 50 34 42 4 23 0 0.05 0.0 0 14.5 29 210 M M 8 40 210
11 43 30 37 -1 28 0 0.00 0.0 0 16.8 30 310 M M 4 45 300
12 37 25 31 -7 34 0 0.00 0.0 0 12.8 23 280 M M 1 35 280
13 45 21 33 -5 32 0 0.03 T 0 5.6 21 220 M M 7 1 28 220
14 34 22 28 -10 37 0 0.39 5.8 2 11.5 29 330 M M 8 129 41 320
15 29 19 24 -13 41 0 0.00 0.0 6 12.5 26 330 M M 5 36 320
16 34 25 30 -7 35 0 0.00 0.0 4 6.8 14 230 M M 7 17 220
17 46 24 35 -2 30 0 0.00 0.0 2 8.4 18 230 M M 5 25 230
18 51 27 39 3 26 0 T 0.0 T 6.4 16 150 M M 3 18 23 150
19 59 34 47 11 18 0 0.68 0.0 0 18.9 38 170 M M 9 1 59 170
20 42 28 35 -1 30 0 0.00 0.0 0 10.1 30 290 M M 5 44 270
21 50 30 40 4 25 0 0.00 0.0 0 16.5 29 310 M M 5 44 300
22 40 25 33 -3 32 0 0.00 0.0 0 8.2 16 300 M M 3 24 310
23 40 35 38 3 27 0 0.20 T 0 5.8 15 240 M M 10 1 20 250
24 48 33 41 6 24 0 0.00 0.0 0 13.4 31 340 M M 4 1 44 350
25 49 27 38 3 27 0 0.00 0.0 0 12.6 28 340 M M 6 38 340
26 29 21 25 -10 40 0 0.70 5.6 0 9.7 23 320 M M 8 2 31 320
27 31 22 27 -7 38 0 0.13 1.0 5 0.0 20 40 M M 7 12 29 50
28 42 16 29 -5 36 0 0.04 0.0 4 5.2 13 250 M M 8 1 17 190
================================================================================
SM 1187 735 853 0 3.55 12.4 274.0 M 163
================================================================================
AV 42.4 26.3 9.8 FASTST M M 6 MAX(MPH)
MISC ----> 38 170 59 170
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES
COLUMN 17 PEAK WIND IN M.P.H.
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2
STATION: ISLIP NY
MONTH: DECEMBER
YEAR: 2025
LATITUDE: 40 47 N
LONGITUDE: 73 6 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 34.3 TOTAL FOR MONTH: 3.55 1 = FOG OR MIST
DPTR FM NORMAL: -3.1 DPTR FM NORMAL: -0.75 2 = FOG REDUCING VISIBILITY
HIGHEST: 59 ON 19 GRTST 24HR 1.33 ON 2- 2 TO 1/4 MILE OR LESS
LOWEST: 16 ON 28 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: 12.4 INCHES 5 = HAIL
GRTST 24HR 5.8 ON 14-14 6 = FREEZING RAIN OR DRIZZLE
GRTST DEPTH: 6 ON 15 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: 3 0.01 INCH OR MORE: 9
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 6
MIN 32 OR BELOW: 24 0.50 INCH OR MORE: 3
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1
[HDD (BASE 65) ]
TOTAL THIS MO. 853 CLEAR (SCALE 0-3) 2
DPTR FM NORMAL 82 PTCLDY (SCALE 4-7) 22
TOTAL FM JUL 1 1642 CLOUDY (SCALE 8-10) 4
DPTR FM NORMAL -68
[CDD (BASE 65) ]
TOTAL THIS MO. 0
DPTR FM NORMAL 0 [PRESSURE DATA]
TOTAL FM JAN 1 1104 HIGHEST SLP M ON M
DPTR FM NORMAL 219 LOWEST SLP 29.27 ON 19
[REMARKS]