


WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
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511 CXUS52 TJSJ 220849 CF6JSJ PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: SAN JUAN AREA/PR MONTH: APRIL 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 87 73 80 1 0 15 0.12 M M 10.8 24 60 M M 5 36 100 2 85 73 79 0 0 14 0.36 M M 13.2 30 100 M M 6 1 41 90 3 84 74 79 -1 0 14 0.14 M M 16.7 29 70 M M 5 42 50 4 84 72 78 -2 0 13 0.34 M M 17.5 26 70 M M 4 18 39 80 5 84 71 78 -2 0 13 0.34 M M 13.8 23 50 M M 6 1 31 10 6 84 71 78 -2 0 13 T M M 10.8 22 60 M M 4 18 29 60 7 84 72 78 -2 0 13 0.07 M M 10.1 23 70 M M 5 1 30 60 8 84 73 79 -1 0 14 0.10 M M 8.5 21 80 M M 6 1 27 50 9 87 74 81 1 0 16 0.04 M M 8.5 22 70 M M 4 29 70 10 87 75 81 1 0 16 T M M 7.3 21 70 M M 4 27 70 11 87 76 82 2 0 17 1.12 M M 5.4 20 60 M M 4 1 25 70 12 89 74 82 2 0 17 0.51 M M 4.9 20 80 M M 4 1 31 90 13 89 75 82 2 0 17 0.09 M M 2.9 10 70 M M 5 18 360 14 86 75 81 1 0 16 0.00 M M 8.4 16 70 M M 4 24 70 15 86 76 81 1 0 16 0.11 M M 12.0 25 60 M M 5 31 70 16 89 75 82 2 0 17 0.08 M M 9.5 24 80 M M 4 1 32 70 17 88 75 82 2 0 17 0.08 M M 7.2 17 90 M M 5 23 90 18 84 75 80 0 0 15 0.07 0.0 0 6.9 13 60 M M 6 24 20 19 83 75 79 -1 0 14 0.18 0.0 0 10.4 20 30 M M 7 1 27 30 20 84 74 79 -1 0 14 0.04 M M 13.3 20 30 M M 6 1 31 20 21 82 74 78 -2 0 13 0.01 M M 11.8 18 30 M M 5 30 20 ================================================================================ SM 1797 1552 0 314 3.80 0.0 209.9 M 104 ================================================================================ AV 85.6 73.9 10.0 FASTST M M 5 MAX(MPH) MISC ----> 30 100 42 50 ================================================================================ 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: APRIL YEAR: 2025 LATITUDE: 18 25 N LONGITUDE: 66 0 W [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 79.7 TOTAL FOR MONTH: 3.80 1 = FOG OR MIST DPTR FM NORMAL: -0.2 DPTR FM NORMAL: 0.85 2 = FOG REDUCING VISIBILITY HIGHEST: 89 ON 16,13 GRTST 24HR 1.12 ON 10-11 TO 1/4 MILE OR LESS LOWEST: 71 ON 6, 5 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: 18 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 10 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 2 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) 21 TOTAL FM JUL 1 0 CLOUDY (SCALE 8-10) 0 DPTR FM NORMAL 0 [CDD (BASE 65) ] TOTAL THIS MO. 314 DPTR FM NORMAL 3 [PRESSURE DATA] TOTAL FM JAN 1 1688 HIGHEST SLP M ON M DPTR FM NORMAL 210 LOWEST SLP 29.89 ON 12 [REMARKS]