Record envelope, standing records and threshold days for Galliano (USC00163433), Louisiana, United States, with 54 years of record.
Key Facts for Galliano
Galliano (USC00163433) is a weather station in Louisiana, United States at 29.46 latitude and -90.31 longitude, 2 m (5 ft) above sea level.
The station reports from 1968 to 2021, 54 years of record.
1,464 records set at Galliano still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Galliano tied a daily record high maximum temperature of 35.6 C (96.1 F) on 25 August 2021.
About the Station
Location: Louisiana, United States, 29.46 latitude, -90.31 longitude.
Elevation: 2 m (5 ft).
Period of record: 1968 to 2021, 54 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Galliano. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Galliano, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
28.3 C (82.9 F)
-10.0 C (14.0 F)
n/a
n/a
Feb
28.9 C (84.0 F)
-11.1 C (12.0 F)
n/a
n/a
Mar
30.6 C (87.1 F)
-6.1 C (21.0 F)
n/a
n/a
Apr
32.8 C (91.0 F)
1.7 C (35.1 F)
n/a
n/a
May
35.0 C (95.0 F)
6.7 C (44.1 F)
n/a
n/a
Jun
37.2 C (99.0 F)
10.0 C (50.0 F)
n/a
n/a
Jul
37.8 C (100.0 F)
17.2 C (63.0 F)
n/a
n/a
Aug
37.8 C (100.0 F)
16.7 C (62.1 F)
n/a
n/a
Sep
36.7 C (98.1 F)
11.1 C (52.0 F)
n/a
n/a
Oct
34.4 C (93.9 F)
1.1 C (34.0 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-4.4 C (24.1 F)
n/a
n/a
Dec
27.8 C (82.0 F)
-12.2 C (10.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Galliano still stand. 1989 holds the most, with 53.
Standing records at Galliano by the year they were set
Year set
Standing records
1968
18
1969
27
1970
34
1971
27
1972
33
1973
41
1974
27
1975
25
1976
32
1977
25
1978
29
1979
28
1980
33
1981
40
1982
13
1983
22
1984
43
1985
34
1986
12
1987
24
1988
23
1989
53
1990
20
1991
17
1992
22
1993
32
1994
19
1995
26
1996
37
1997
21
1998
26
1999
28
2000
32
2001
30
2002
30
2003
19
2004
25
2005
22
2006
17
2007
13
2008
24
2009
25
2010
21
2011
36
2012
19
2013
25
2014
30
2015
37
2016
18
2017
23
2018
36
2019
37
2020
32
2021
22
All-Time Record Progression
1 new records
1 all-time records were set at Galliano between 24 March 2021 and 24 March 2021. Each dot is a new record.
When Galliano set new all-time records
Date
Kind
Detail
2021-03-24
Record daily precipitation
Record daily precipitation 253.0 mm (10.0 in)
Wettest Day of Each Month
Mar: 253.0 mm (10.0 in)
The wettest day on record for each calendar month at Galliano. The most was 253.0 mm (10.0 in) on 24 March 2021.
Record daily precipitation for each month at Galliano
Month
Record daily precipitation (mm)
Date
Jan
178.3 mm (7.0 in)
6 January 1998
Feb
175.3 mm (6.9 in)
11 February 1981
Mar
253.0 mm (10.0 in)
24 March 2021
Apr
203.2 mm (8.0 in)
15 April 1974
May
251.5 mm (9.9 in)
30 May 1975
Jun
154.9 mm (6.1 in)
21 June 2017
Jul
192.0 mm (7.6 in)
6 July 2005
Aug
198.1 mm (7.8 in)
2 August 1984
Sep
242.6 mm (9.6 in)
26 September 2002
Oct
151.4 mm (6.0 in)
9 October 2004
Nov
102.9 mm (4.1 in)
11 November 1998
Dec
231.9 mm (9.1 in)
21 December 2006
Period of Record Coverage
1968 to 2021
Complete yearUnder 90 percent of days
54 years of record at Galliano, 1968 to 2021. 5 years have data for under 90 percent of days and are left out of rankings: 1968, 1981, 1982, 2020, 2021.
Cooler than the station meanWarmer than the station mean
One stripe for each of 45 complete years at Galliano, 1969 to 2019. Blue stripes are years cooler than the station's own mean of 20.5 C (68.9 F); red stripes are warmer. The coolest year was 1993, at 19.4 C (66.8 F), and the warmest was 2019, at 21.8 C (71.2 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Galliano as warming stripes, 1969 to 2019
Year
Annual mean temperature
Difference from the station mean
1969
19.8 C
-0.72 C
1970
19.8 C
-0.75 C
1971
20.7 C
+0.20 C
1972
21.2 C
+0.73 C
1974
21.2 C
+0.64 C
1975
20.7 C
+0.14 C
1977
20.2 C
-0.27 C
1978
20.2 C
-0.36 C
1979
20.0 C
-0.54 C
1980
20.6 C
+0.07 C
1983
19.7 C
-0.82 C
1984
20.4 C
-0.13 C
1985
20.4 C
-0.09 C
1986
20.7 C
+0.19 C
1987
19.8 C
-0.74 C
1988
19.9 C
-0.60 C
1989
20.1 C
-0.41 C
1990
20.8 C
+0.31 C
1991
20.5 C
-0.06 C
1992
19.9 C
-0.66 C
1993
19.4 C
-1.15 C
1994
19.9 C
-0.63 C
1995
20.5 C
-0.04 C
1997
20.4 C
-0.16 C
1998
21.3 C
+0.75 C
1999
20.6 C
+0.08 C
2000
20.6 C
+0.11 C
2001
20.3 C
-0.21 C
2002
20.1 C
-0.44 C
2003
19.8 C
-0.67 C
2004
20.6 C
+0.06 C
2005
21.2 C
+0.68 C
2006
21.2 C
+0.69 C
2008
20.5 C
-0.04 C
2009
20.9 C
+0.40 C
2010
19.7 C
-0.86 C
2011
20.7 C
+0.17 C
2012
21.4 C
+0.92 C
2013
20.4 C
-0.11 C
2014
19.8 C
-0.76 C
2015
21.5 C
+1.03 C
2016
21.3 C
+0.82 C
2017
21.5 C
+1.02 C
2018
21.5 C
+0.94 C
2019
21.8 C
+1.24 C
The annual mean temperature here has risen by 0.16 C (0.05 to 0.28) per decade over 1969 to 2019. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Galliano
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.16 C (0.05 to 0.28) per decade
0.3 F (0.1 to 0.5) per decade
1969 to 2019
45
Rise
Mean daily maximum
-0.01 C (-0.15 to 0.12) per decade
-0.03 F (-0.27 to 0.22) per decade
1969 to 2019
45
Not clearly different from zero
Mean daily minimum
0.3 C (0.2 to 0.5) per decade
0.6 F (0.4 to 0.8) per decade
1969 to 2019
45
Rise
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1968 to 2021
Yearly extremes at Galliano: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1971
35.0 C (95.0 F)
54
Coldest night (TNn)
-12.2 C (10.0 F)
1989
-3.3 C (26.1 F)
54
Wettest day (Rx1day)
253.0 mm (10.0 in)
2021
131.1 mm (5.2 in)
54
Wettest five days (Rx5day)
450.3 mm (17.7 in)
1985
180.4 mm (7.1 in)
54
Longest dry spell (CDD)
38 days
2011
22 days
54
Hottest day (TXx)
The hottest day of the year at Galliano, 1968 to 2021. The record is 37.8 C (100.0 F) in 1971, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Galliano by year
Year
Hottest day (TXx)
1968
35.0 C (95.0 F)
1969
37.2 C (99.0 F)
1970
36.7 C (98.1 F)
1971
37.8 C (100.0 F)
1972
36.7 C (98.1 F)
1973
36.7 C (98.1 F)
1974
35.0 C (95.0 F)
1975
35.0 C (95.0 F)
1976
35.6 C (96.1 F)
1977
35.0 C (95.0 F)
1978
35.6 C (96.1 F)
1979
36.7 C (98.1 F)
1980
37.8 C (100.0 F)
1981
37.8 C (100.0 F)
1982
34.4 C (93.9 F)
1983
36.1 C (97.0 F)
1984
34.4 C (93.9 F)
1985
34.4 C (93.9 F)
1986
35.6 C (96.1 F)
1987
34.4 C (93.9 F)
1988
35.0 C (95.0 F)
1989
34.4 C (93.9 F)
1990
35.0 C (95.0 F)
1991
33.9 C (93.0 F)
1992
34.4 C (93.9 F)
1993
35.0 C (95.0 F)
1994
33.3 C (91.9 F)
1995
36.1 C (97.0 F)
1996
35.0 C (95.0 F)
1997
35.0 C (95.0 F)
1998
36.1 C (97.0 F)
1999
35.6 C (96.1 F)
2000
37.2 C (99.0 F)
2001
33.3 C (91.9 F)
2002
35.0 C (95.0 F)
2003
32.8 C (91.0 F)
2004
34.4 C (93.9 F)
2005
35.0 C (95.0 F)
2006
35.0 C (95.0 F)
2007
36.7 C (98.1 F)
2008
34.4 C (93.9 F)
2009
36.7 C (98.1 F)
2010
36.7 C (98.1 F)
2011
35.6 C (96.1 F)
2012
35.6 C (96.1 F)
2013
34.4 C (93.9 F)
2014
33.9 C (93.0 F)
2015
37.2 C (99.0 F)
2016
33.9 C (93.0 F)
2017
35.0 C (95.0 F)
2018
35.6 C (96.1 F)
2019
36.7 C (98.1 F)
2020
37.2 C (99.0 F)
2021
36.1 C (97.0 F)
Coldest night (TNn)
The coldest night of the year at Galliano, 1968 to 2021. The record is -12.2 C (10.0 F) in 1989, marked on the chart; the median year is -3.3 C (26.1 F).
Coldest night (TNn) at Galliano by year
Year
Coldest night (TNn)
1968
-1.7 C (28.9 F)
1969
-3.3 C (26.1 F)
1970
-7.2 C (19.0 F)
1971
-2.2 C (28.0 F)
1972
-2.8 C (27.0 F)
1973
-4.4 C (24.1 F)
1974
-1.1 C (30.0 F)
1975
-2.8 C (27.0 F)
1976
-4.4 C (24.1 F)
1977
-6.1 C (21.0 F)
1978
-3.3 C (26.1 F)
1979
-5.0 C (23.0 F)
1980
-3.3 C (26.1 F)
1981
-7.2 C (19.0 F)
1982
0.0 C (32.0 F)
1983
-9.4 C (15.1 F)
1984
-5.6 C (21.9 F)
1985
-10.0 C (14.0 F)
1986
-3.9 C (25.0 F)
1987
-1.7 C (28.9 F)
1988
-2.8 C (27.0 F)
1989
-12.2 C (10.0 F)
1990
-0.6 C (30.9 F)
1991
-1.7 C (28.9 F)
1992
-1.7 C (28.9 F)
1993
-1.7 C (28.9 F)
1994
-2.8 C (27.0 F)
1995
-2.2 C (28.0 F)
1996
-7.2 C (19.0 F)
1997
-3.3 C (26.1 F)
1998
0.6 C (33.1 F)
1999
-6.7 C (19.9 F)
2000
-6.7 C (19.9 F)
2001
-6.7 C (19.9 F)
2002
-6.1 C (21.0 F)
2003
-4.4 C (24.1 F)
2004
-2.2 C (28.0 F)
2005
-0.6 C (30.9 F)
2006
-2.2 C (28.0 F)
2007
-2.8 C (27.0 F)
2008
-3.3 C (26.1 F)
2009
-1.1 C (30.0 F)
2010
-6.1 C (21.0 F)
2011
-11.1 C (12.0 F)
2012
-2.2 C (28.0 F)
2013
-0.6 C (30.9 F)
2014
-5.6 C (21.9 F)
2015
-3.9 C (25.0 F)
2016
-1.1 C (30.0 F)
2017
-2.8 C (27.0 F)
2018
-6.7 C (19.9 F)
2019
-0.6 C (30.9 F)
2020
-3.3 C (26.1 F)
2021
-3.9 C (25.0 F)
Wettest day (Rx1day)
The wettest day of the year at Galliano, 1968 to 2021. The record is 253.0 mm (10.0 in) in 2021, marked on the chart; the median year is 131.1 mm (5.2 in).
Wettest day (Rx1day) at Galliano by year
Year
Wettest day (Rx1day)
1968
160.0 mm (6.3 in)
1969
78.7 mm (3.1 in)
1970
101.6 mm (4.0 in)
1971
86.6 mm (3.4 in)
1972
177.8 mm (7.0 in)
1973
196.9 mm (7.8 in)
1974
203.2 mm (8.0 in)
1975
251.5 mm (9.9 in)
1976
106.7 mm (4.2 in)
1977
135.1 mm (5.3 in)
1978
142.7 mm (5.6 in)
1979
116.1 mm (4.6 in)
1980
183.1 mm (7.2 in)
1981
175.3 mm (6.9 in)
1982
157.5 mm (6.2 in)
1983
116.8 mm (4.6 in)
1984
198.1 mm (7.8 in)
1985
145.5 mm (5.7 in)
1986
177.0 mm (7.0 in)
1987
75.7 mm (3.0 in)
1988
119.4 mm (4.7 in)
1989
62.2 mm (2.4 in)
1990
97.8 mm (3.9 in)
1991
125.2 mm (4.9 in)
1992
142.2 mm (5.6 in)
1993
88.4 mm (3.5 in)
1994
127.0 mm (5.0 in)
1995
106.7 mm (4.2 in)
1996
53.6 mm (2.1 in)
1997
127.0 mm (5.0 in)
1998
178.3 mm (7.0 in)
1999
102.9 mm (4.1 in)
2000
122.7 mm (4.8 in)
2001
139.7 mm (5.5 in)
2002
242.6 mm (9.6 in)
2003
108.0 mm (4.3 in)
2004
167.6 mm (6.6 in)
2005
192.0 mm (7.6 in)
2006
231.9 mm (9.1 in)
2007
101.1 mm (4.0 in)
2008
137.7 mm (5.4 in)
2009
66.3 mm (2.6 in)
2010
93.2 mm (3.7 in)
2011
190.5 mm (7.5 in)
2012
154.9 mm (6.1 in)
2013
144.8 mm (5.7 in)
2014
108.0 mm (4.3 in)
2015
152.4 mm (6.0 in)
2016
122.7 mm (4.8 in)
2017
177.8 mm (7.0 in)
2018
84.1 mm (3.3 in)
2019
91.4 mm (3.6 in)
2020
86.6 mm (3.4 in)
2021
253.0 mm (10.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Galliano, 1968 to 2021. The record is 450.3 mm (17.7 in) in 1985, marked on the chart; the median year is 180.4 mm (7.1 in).
Wettest five days (Rx5day) at Galliano by year
Year
Wettest five days (Rx5day)
1968
161.9 mm (6.4 in)
1969
144.7 mm (5.7 in)
1970
157.9 mm (6.2 in)
1971
121.9 mm (4.8 in)
1972
434.3 mm (17.1 in)
1973
296.0 mm (11.7 in)
1974
220.2 mm (8.7 in)
1975
328.0 mm (12.9 in)
1976
148.3 mm (5.8 in)
1977
177.0 mm (7.0 in)
1978
159.3 mm (6.3 in)
1979
180.7 mm (7.1 in)
1980
208.5 mm (8.2 in)
1981
257.4 mm (10.1 in)
1982
161.3 mm (6.4 in)
1983
156.7 mm (6.2 in)
1984
227.5 mm (9.0 in)
1985
450.3 mm (17.7 in)
1986
183.4 mm (7.2 in)
1987
117.6 mm (4.6 in)
1988
188.3 mm (7.4 in)
1989
73.9 mm (2.9 in)
1990
170.7 mm (6.7 in)
1991
224.8 mm (8.9 in)
1992
180.0 mm (7.1 in)
1993
147.1 mm (5.8 in)
1994
130.6 mm (5.1 in)
1995
178.8 mm (7.0 in)
1996
110.5 mm (4.4 in)
1997
197.1 mm (7.8 in)
1998
350.3 mm (13.8 in)
1999
161.1 mm (6.3 in)
2000
136.4 mm (5.4 in)
2001
344.2 mm (13.6 in)
2002
366.8 mm (14.4 in)
2003
130.8 mm (5.1 in)
2004
376.6 mm (14.8 in)
2005
217.1 mm (8.5 in)
2006
348.8 mm (13.7 in)
2007
119.4 mm (4.7 in)
2008
146.8 mm (5.8 in)
2009
178.6 mm (7.0 in)
2010
253.2 mm (10.0 in)
2011
337.8 mm (13.3 in)
2012
276.6 mm (10.9 in)
2013
150.3 mm (5.9 in)
2014
178.9 mm (7.0 in)
2015
190.0 mm (7.5 in)
2016
241.3 mm (9.5 in)
2017
246.4 mm (9.7 in)
2018
106.2 mm (4.2 in)
2019
186.4 mm (7.3 in)
2020
113.1 mm (4.5 in)
2021
259.8 mm (10.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Galliano, 1968 to 2021. The record is 38 days in 2011, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Galliano by year
Year
Longest dry spell (CDD)
1968
26 days
1969
22 days
1970
16 days
1971
23 days
1972
24 days
1973
24 days
1974
29 days
1975
23 days
1976
22 days
1977
19 days
1978
31 days
1979
30 days
1980
17 days
1981
25 days
1982
17 days
1983
19 days
1984
18 days
1985
24 days
1986
20 days
1987
26 days
1988
25 days
1989
19 days
1990
18 days
1991
21 days
1992
21 days
1993
25 days
1994
17 days
1995
17 days
1996
30 days
1997
12 days
1998
29 days
1999
28 days
2000
24 days
2001
30 days
2002
30 days
2003
26 days
2004
18 days
2005
29 days
2006
22 days
2007
28 days
2008
16 days
2009
26 days
2010
27 days
2011
38 days
2012
17 days
2013
14 days
2014
14 days
2015
22 days
2016
22 days
2017
19 days
2018
16 days
2019
21 days
2020
12 days
2021
11 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
35 years with a frost
Across 35 years with a frost, the median last spring frost at Galliano falls on 13 February and the median first autumn frost on 7 December, which leaves a median of 295 days between them.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
Frost dates and growing season at Galliano
Measure
Median, all years
Earliest period
Recent period (1977 to 2017)
Recent against earliest
Fitted trend
Last spring frost
13 February
n/a
12 February
n/a
-3.5 days per decade
First autumn frost
7 December
n/a
7 December
n/a
+0.2 days per decade
Growing days
295 days
n/a
299 days
n/a
+3.8 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
50 years, 1968 to 2019
A day with at least 130.6 mm (5.1 in) of rain is expected about once in 2 years. A day with at least 273.3 mm (10.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Galliano: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
130.6 mm (5.1 in)
5 years
174.2 mm (6.9 in)
10 years
200.7 mm (7.9 in)
25 years
231.8 mm (9.1 in)
50 years
253.3 mm (10.0 in)
100 years
273.3 mm (10.8 in)
Longer than the 50 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 50 years of values from 1968 to 2019.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 251.5 mm (9.9 in) in 1975; 242.6 mm (9.6 in) in 2002; 231.9 mm (9.1 in) in 2006.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2004 to 2019 against 1961 to 1990
Over 2004 to 2019, Galliano had a mean temperature of 20.9 C (69.7 F) and 1,661.6 mm (65.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Usher Twr (United States, 725 km away), Perry (United States, 654 km away) and Steinhatchee 6 ENE (United States, 677 km away).
Climate twins of Galliano: stations whose 1961 to 1990 climate is closest to its 2004 to 2019 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Galliano standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Galliano threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Records are computed by this site and are not official.