


WFO Monthly/Daily Climate Data
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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491 CXUS51 KOKX 220910 CF6ISP PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: ISLIP NY MONTH: SEPTEMBER 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 77 57 67 -4 0 2 0.00 0.0 0 5.6 14 40 M M 6 21 60 2 78 58 68 -3 0 3 0.00 0.0 0 7.4 17 150 M M 2 23 160 3 76 56 66 -5 0 1 0.00 0.0 0 4.6 13 150 M M 2 19 140 4 78 58 68 -2 0 3 0.00 0.0 0 8.8 20 170 M M 4 26 160 5 81 68 75 5 0 10 0.29 0.0 0 10.0 23 200 M M 5 13 34 200 6 82 67 75 5 0 10 0.39 0.0 0 10.1 23 200 M M 7 138 34 190 7 67 60 64 -6 1 0 0.41 0.0 0 4.9 12 10 M M 9 1 14 350 8 74 56 65 -5 0 0 0.00 0.0 0 6.8 14 350 M M 5 18 350 9 74 53 64 -5 1 0 0.00 0.0 0 9.9 16 100 M M 6 23 100 10 74 64 69 0 0 4 0.01 0.0 0 10.2 20 40 M M 9 29 30 11 81 57 69 0 0 4 0.00 0.0 0 5.8 12 310 M M 2 20 360 12 79 61 70 2 0 5 0.00 0.0 0 5.7 15 20 M M 4 20 50 13 76 58 67 -1 0 2 0.14 0.0 0 6.7 15 170 M M 6 20 160 14 79 62 71 3 0 6 0.00 0.0 0 4.5 10 200 M M 6 18 200 15 82 63 73 6 0 8 0.00 0.0 0 8.2 15 140 M M 6 21 30 16 76 63 70 3 0 5 0.00 0.0 0 11.4 18 70 M M 8 27 70 17 74 64 69 2 0 4 T 0.0 0 10.4 21 80 M M 9 29 80 18 83 66 75 9 0 10 T 0.0 0 6.6 13 210 M M 5 16 220 19 85 61 73 7 0 8 0.00 0.0 0 6.4 15 340 M M 1 1 21 330 20 75 57 66 0 0 1 0.00 0.0 0 8.5 17 150 M M 2 23 60 21 71 52 62 -3 3 0 0.00 0.0 0 7.6 18 120 M M 5 25 130 ================================================================================ SM 1622 1261 5 86 1.24 0.0 160.1 M 109 ================================================================================ AV 77.2 60.0 7.6 FASTST M M 5 MAX(MPH) MISC ----> # 23 200 # 34 200 ================================================================================ 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: SEPTEMBER YEAR: 2025 LATITUDE: 40 47 N LONGITUDE: 73 6 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 68.6 TOTAL FOR MONTH: 1.24 1 = FOG OR MIST DPTR FM NORMAL: 0.2 DPTR FM NORMAL: -1.25 2 = FOG REDUCING VISIBILITY HIGHEST: 85 ON 19 GRTST 24HR 0.80 ON 6- 7 TO 1/4 MILE OR LESS LOWEST: 52 ON 21 3 = THUNDER SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS TOTAL MONTH: 0.0 INCH 5 = HAIL GRTST 24HR 0.0 6 = FREEZING RAIN OR DRIZZLE GRTST DEPTH: 0 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: 5 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 4 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. 5 CLEAR (SCALE 0-3) 5 DPTR FM NORMAL -15 PTCLDY (SCALE 4-7) 13 TOTAL FM JUL 1 5 CLOUDY (SCALE 8-10) 3 DPTR FM NORMAL -18 [CDD (BASE 65) ] TOTAL THIS MO. 86 DPTR FM NORMAL -6 [PRESSURE DATA] TOTAL FM JAN 1 1014 HIGHEST SLP M ON M DPTR FM NORMAL 158 LOWEST SLP 29.84 ON 4 [REMARKS]