Monthly Records for Primary Climatological Data Sites

(Top 5 for each month)

San Juan International Airport St. Thomas/Cyril E. King Airport St. Croix/Henry E. Rohlsen Airport

Climate Records since 1956

Wettest -Highest total rainfall for the calendar month/ Driest- Lowest total rainfall for the calendar month

Hottest - Highest average temperatures for the calendar month/ Coolest - Lowest average temperature for the calendar month

* Most Recent Occurrence

 

Saint Thomas

January

Wettest Driest Hottest Coolest
 4.83" 2006 0.48" 2013  80.8°F 1994  75.0°F 1955
 4.67" 1995  0.76" 2007  80.2°F 1995  75.5°F 2012
 4.19" 1956  0.82" 1991   80.1°F 1993  76.0°F 1956
 4.08" 2005 0.87" 1976  79.9°F 1996  76.5°F 1953
 3.97" 2008 0.94" 1955    79.6°F 2007*  76.6°F 1954

February

Wettest Driest Hottest Coolest
 3.96" 1954  0.42" 1987  82.1°F 1979  76.2°F 1999*
 3.31" 1983 0.47" 1993   81.2°F 1994  76.6°F 1957
3.02" 1982 0.52"  2010   80.9°F 1995  76.9°F 2005*
2.98"  2009 0.60" 1986  80.5°F 1993  77.0°F 2009
2.75"  1995 0.66" 1975  80.1°F 2010  77.2°F 2011

March

Wettest Driest Hottest Coolest
 4.37" 1961   0.01" 2008  81.8°F 1993  76.5°F 2000*
 3.95" 2012  0.36" 1959  81.7°F 1994  76.6°F 1955
 3.73" 1963   0.44" 1984  81.3°F 1979  77.0°F 2011
 3.44" 1979 0.52" 1991  81.0°F 2010  77.2°F 1957
 3.18" 1987 0.62" 1993  80.8°F 1983  77.3°F 1953*

April

Wettest Driest Hottest Coolest
 11.20" 2003  0.23" 1953  84.0°F 1993  77.4°F 1955
 6.66" 1978  0.48" 1985  83.2°F 1995*  78.2 °F 2008
6.52" 1986  0.54" 2004  82.4°F 1979  78.4°F 1956*
  6.22" 2007  0.57" 2000  82.1°F 1992  78.6°F 1976
4.75"   1960  0.67 " 1991  81.7°F 1987  78.8°F  1989*

May

Wettest Driest Hottest Coolest
 16.39" 1960  0.06" 2008  85.9°F 1994  79.3°F 1959
 9.98" 1979  0.28" 2007  83.5°F 1973  79.7°F 1957
 9.80" 1987  0.47' 973  83.4°F 1993  79.8°F 1986*
 8.22" 1980  0.58" 1975  83.1°F 1979  80.0°F 1963
 8.04" 2011  0.61" 1954  82.8°F 2010  80.1°F 1982

June

Wettest Driest Hottest Coolest
 9.51" 2010 0.07"  2007  86.4°F 1994  80.0°F 1956
 8.29" 1956  0.08" 2012  86.2°F 1996  81.0°F 1976
6.97" 1983 0.14"  2014 85.7°F 1995 81.6°F 1981
 5.33" 2009  0.18" 2003  84.5°F 1993  81.7°F 2009*
 5.00" 1973 0.28" 1989  84.4°F 1980  81.8°F 1953*

July

Wettest Driest Hottest Coolest
7.41" 1958 0.03" 2007  86.6 °F1979 81.8°F 1956 
 7.40" 2010 0.24" 1956  86.5°F 1994 82.1°F 1955
 5.74" 2005  0.74" 1994  86.2°F 1993  82.3°F 1954
 4.85" 1963 0.81"   2014  85.9°F 1995  82.4°F 1958
 4.84" 1995   0.86" 1990  85.8°F 1992  82.6°F 1964*

August

Wettest Driest Hottest Coolest
9.14" 2011  0.70" 1993 87.3°F 1994 81.2°F 1956
8.54" 1963  0.98" 1991  87.2°F 1993  82.3°F 1954
 8.22" 2005  1.26" 2002  85.6°F 1990  82.6°F 1955
7.53"  2013  1.75" 2009  85.4°F 1995  82.9°F 1957*
7.35" 2014  1.77" 1994  85.3°F 2010  83.0°F 1978*

September

Wettest Driest Hottest Coolest
 14.94" 1953  0.93" 2012  86.3°F 1993  80.3°F 1979
 13.89" 2004  1.09" 1986  85.7°F 1992  81.3°F 1956
12.86" 2008 1.42" 1987 85.6°F 1994 81.6°F 2008
 11.43" 1979  1.63" 1983  85.1°F 1987  82.0 °F 1955
 11.04" 1960   1.72" 1994  84.9°F 1983  82.1°F 1960

October

Wettest Driest Hottest Coolest
 16.20" 2010  1.95" 2011  85.5°F 1993  78.7°F 1954
 12.49" 2005  2.00" 1988  85.4°F 1994  80.3°F 1956
 12.45" 1974  2.21" 1979  85.2°F 1992  80.5°F 2010
 12.39" 1954   2.22" 1957  84.0°F 2013  80.6°F 1985
 11.04" 2008  2.27" 2009  83.9°F 1987  80.9°F 2007

November

Wettest Driest Hottest Coolest
 18.39" 2003  0.78" 1962  83.3°F 1994  78.1°F 1954*
 14.74" 1984   0.90" 1963  83.2°F 1990  78.8°F 1956
10.95"   2013 1.35" 1980 82.8°F 1993 79.1°F 1982
 10.36" 1987  1.50" 1973  82.3°F 1992*  79.3°F 1974
10.16" 1974  1.62" 1976  82.0°F 2006  79.6°F 1975

December

Wettest Driest Hottest Coolest
 9.87" 1960 0.25"  1985  81.8°F 1994  75.7°F 2010
 7.45" 1957  0.63" 1963  81.6°F 1993  76.1 °F 1964
7.30"  2013  0.76" 1956  81.1°F 1992  76.2 °F 1954
6.66"  1981  1.12" 2000 80.9°F 1995*  77.0°F 1982
 5.93"   1998 1.29" 1958  80.8°F 1963  77.7°F 1974*

Click here to return to unique local climate data web page for the NWS San Juan

Updated Oct 2014


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