All-time weather records — Harahan, LA

Record high
104.0°F
June 24, 2009
Record low
0.0°F
January 5, 1901
Wettest day
13.08 in
October 2, 1937

Climate change signal in Harahan

12%

of Harahan's all-time daily heat records were set in the last decade (44 of 366 records since 2015).

1.9%

of all-time daily cold records were set in the last decade (7 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1890s
6
36
1900s
9
24
1910s
68
81
1920s
37
70
1930s
49
44
1940s
43
18
1950s
25
26
1960s
5
23
1970s
5
8
1980s
15
19
1990s
17
9
2000s
32
1
2010s
42
3
2020s
13
4

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1893, the latest in 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 84.0°F — Jan 1, 1952 0.0°F — Jan 5, 1901 5.65 in — Jan 7, 1895
February 86.0°F — Feb 22, 2018 6.1°F — Feb 13, 1899 9.82 in — Feb 16, 1998
March 91.0°F — Mar 23, 1929 26.1°F — Mar 10, 1932 9.00 in — Mar 5, 1948
April 99.0°F — Apr 30, 1946 12.0°F — Apr 13, 1921 13.00 in — Apr 16, 1927
May 99.0°F — May 31, 1911 46.0°F — May 1, 1908 10.94 in — May 8, 1995
June 104.0°F — Jun 24, 2009 54.0°F — Jun 1, 1984 7.80 in — Jun 10, 1991
July 102.0°F — Jul 15, 1939 61.0°F — Jul 3, 1918 7.07 in — Jul 11, 2019
August 104.0°F — Aug 28, 2023 60.1°F — Aug 27, 1927 9.26 in — Aug 29, 2012
September 100.9°F — Sep 2, 2000 48.9°F — Sep 22, 1913 12.96 in — Sep 7, 1929
October 97.0°F — Oct 1, 1998 35.1°F — Oct 30, 1910 13.08 in — Oct 2, 1937
November 91.9°F — Nov 3, 1936 7.0°F — Nov 30, 1985 6.21 in — Nov 7, 1989
December 84.9°F — Dec 10, 1939 1.9°F — Dec 26, 1923 7.22 in — Dec 12, 2009

Click a month to see every daily record for that month in Harahan.