


WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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481 CXUS52 TJSJ 060918 CF6JSJ PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: SAN JUAN AREA/PR MONTH: MAY YEAR: 2025 LATITUDE: 18 25 N LONGITUDE: 66 0 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 85 75 80 -1 0 15 0.07 M M 4.8 18 70 M M 6 1 24 40 2 86 74 80 -1 0 15 0.49 M M 7.3 21 80 M M 5 13 29 70 3 83 74 79 -2 0 14 1.55 M M 7.6 20 80 M M 8 13 27 80 4 85 75 80 -1 0 15 T M M 6.9 21 60 M M 5 27 60 5 87 75 81 0 0 16 0.05 M M 8.4 21 60 M M 3 28 70 ================================================================================ SM 426 373 0 75 2.16 M 35.0 M 27 ================================================================================ AV 85.2 74.6 7.0 FASTST M M 5 MAX(MPH) MISC ----> # 21 80 29 70 ================================================================================ 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 JUAN AREA/PR MONTH: MAY YEAR: 2025 LATITUDE: 18 25 N LONGITUDE: 66 0 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 79.9 TOTAL FOR MONTH: 2.16 1 = FOG OR MIST DPTR FM NORMAL: -1.1 DPTR FM NORMAL: 1.24 2 = FOG REDUCING VISIBILITY HIGHEST: 87 ON 5 GRTST 24HR 1.70 ON 2- 3 TO 1/4 MILE OR LESS LOWEST: 74 ON 3, 2 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: 4 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 2 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1 [HDD (BASE 65) ] TOTAL THIS MO. 0 CLEAR (SCALE 0-3) 0 DPTR FM NORMAL 0 PTCLDY (SCALE 4-7) 5 TOTAL FM JUL 1 0 CLOUDY (SCALE 8-10) 0 DPTR FM NORMAL 0 [CDD (BASE 65) ] TOTAL THIS MO. 75 DPTR FM NORMAL -5 [PRESSURE DATA] TOTAL FM JAN 1 1892 HIGHEST SLP M ON M DPTR FM NORMAL 192 LOWEST SLP 29.89 ON 1 [REMARKS]