Climatological Report (Monthly)
Issued by NWS
Issued by NWS
811
CXCA52 TJSJ 020253
CLMIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
1053 PM AST SUN JUN 01 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1953 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
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TEMPERATURE (F)
RECORD
HIGH MM MM
LOW 66 05/05/1974
HIGHEST 90 05/27 87 3 MM
05/28
05/31
LOWEST 73 05/17 76 -3 MM
AVG. MAXIMUM 87.5 87.2 0.3 MM
AVG. MINIMUM 77.7 77.5 0.2 MM
MEAN 82.6 82.3 0.3 MM
DAYS MAX >= 90 6 5.3 0.7 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.98 1979
MINIMUM T 2020
TOTALS 5.11 3.02 2.09 MM
DAILY AVG. 0.16 0.10 0.06 T
DAYS >= .01 14 11.9 2.1 0
DAYS >= .10 8 5.8 2.2 0
DAYS >= .50 2 2.0 0.0 0
DAYS >= 1.00 2 0.7 1.3 0
GREATEST
24 HR. TOTAL 2.15 05/08 TO 05/09
STORM TOTAL 2.03
DEGREE DAYS
HEATING TOTAL 0 0 0 MM
SINCE 7/1 0
COOLING TOTAL 554 538 16 MM
SINCE 1/1 2392
FREEZE DATES
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WIND (MPH)
AVERAGE WIND SPEED 10.1
HIGHEST WIND SPEED/DIRECTION 30/040 DATE 05/17
HIGHEST GUST SPEED/DIRECTION 41/020 DATE 05/17
SKY COVER
AVERAGE SKY COVER 0.37
AVERAGE RH (PERCENT) 79
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 8 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 7
LIGHT RAIN 15 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 12 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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