Slight Risk for Excessive Rainfall and Severe Thunderstorms Thursday

Additional rounds of thunderstorms are expected Thursday and Thursday night across Oklahoma and north Texas, with risks for both large hail and flash flooding. Strong winds may accompany any storms from east Texas northeast through the lower Great Lakes. Read More >

Monthly Extremes for Primary Climatological Data Sites

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

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

Allowable missing days: less than 10% for temperature and "Wettest" column; zero for "Driest" column.

San Juan Area (climate records since 1898)

	Wettest	Driest	Hottest	Coolest
1	18.56" Aug 2011	Trace Mar 2005	86.1°F Sep 2024	73.3°F Feb 1951
2	17.65" Nov 2016	0.05" Feb 1941	86.1°F Jun 2024	73.3°F Jan 1950
3	16.88" May 1936	0.08" Apr 1997	85.8°F Aug 2024	73.3°F Feb 1917
4	16.81" Dec 1981	0.09" Feb 1902	85.8°F Sep 2023	73.4°F Feb 1925
5	15.96" Nov 1979	0.16" Jun 2012	85.7°F Jul 2024	73.4°F Jan 1917
6	15.79" Sep 2017	0.20" Feb 1983	85.7°F Jun 2012	73.4°F Feb 1907
7	15.64" Nov 1931	0.28" Apr 1984	85.6°F Oct 2024	73.4°F Jan 1907
8	15.47" Jan 1937	0.29" Jun 1985	85.6°F Jun 2023	73.6 °F Feb 1950
9	15.40" Dec 1910	0.42" Apr 1935	85.4°F Oct 2023	73.6°F Feb 1949
10	15.15" Sep 1996	0.44" May 1972	85.4°F Jun 1983	73.6°F Jan 1945

Saint Thomas/Cyril E. King Airport (climate records since 1953)

	Wettest	Driest	Hottest	Coolest
1	18.39" Nov 2003	0.01" Mar 2008	87.3°F Aug 1994	74.5°F Mar 2018
2	16.20" Oct 2010	0.03" Jul 2007	87.2°F Aug 1993	75.0°F Jan 1955
3	14.94" Sep 1953	0.06" May 2008	86.6°F Jul 1979	75.7 °F Dec 2010
4	14.73" Nov 1984	0.07" Jun 2007	86.5°F Jul 1994	75.8°F Feb 1956
5	13.89" Sep 2004	0.08" Jun 2012	86.4°F Jun 1994	76.0°F Jan 1956
6	13.35" Feb 2015	0.14" Jun 2014	86.4°F June 1979	76.1" Dec 1964^†
7	12.86" Sep 2008	0.18" Jun 2003	86.3°F Sep 1993	76.2°F Feb 1999
8	12.49" Oct 2005	0.22" Jul 2015	86.2°F Jul 1993	76.2°F Feb 1955
9	12.45" Oct 1974	0.23" Apr 1953	86.2°F Jun 1996	76.2°F Dec 1954
10	12.39" Oct 1954	0.24" Jul 1956	86.0°F Sep 2023	76.2°F Feb 1954

Saint Croix/Henry E. Rohlsen Airport (climate records since 1951)

	Wettest	Driest	Hottest	Coolest
1	19.15" Sep 1996	Trace Apr 1988	87.7°F Sep 2023	73.4°F Jan 2012
2	18.03" Nov 2003	0.02" Mar 2019	86.7°F Aug 2023	74.8°F Feb 2012
3	16.34" Nov 1974	0.02" Apr 1997	86.5°F Aug 1989	75.2°F Jan 1979
4	16.20" Oct 1977	0.10" Jun 2001	86.5°F Jul 1989	75.5°F Jan 1955
5	14.03" May 1981	0.11" Feb 2005	85.9°F Aug 2020	75.7°F Apr 1982
6	14.03" Dec 1960	0.12" Jun 1985	85.6°F Jul 2024	75.7°F Jan 1965
7	13.25" Nov 1987	0.17" Mar 1951	85.6°F Oct 2023	75.8°F Mar 1951
8	12.95" Oct 1990	0.22" May 1974	85.6°F Jun 2020	75.8°F Dec 1964
9	12.70" Nov 1984	0.22" Apr 1953	85.6°F Jun 1980	75.9°F Dec 2010
10	11.79" Oct 1954	0.26" Jun 2012	85.3°F Sep 1993	75.9°F Mar 1982