Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Reserve enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 53°F in January while summers reach 83°F in July. The area gets 313 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 67.2 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 7 feet.
Temperature
53°F Jan (11°C)83°F Jul (28°C)
Annual Average
69.1°F
28% above US avg
January Average
53°F (11°C)
July Average
83°F (28°C)
Sunny Days
313 days/yr
Geography
Elevation
7 ft (2 m)
Area
15.7 sq mi (40.7 km²)
Population Density
513/sq mi
Coordinates
30.0730°N, 90.5550°W
Timezone
America/Chicago
County
St. John the Baptist Parish County
Nearest Airport
Louis Armstrong New Orleans International (MSY) 19 miles away
Precipitation & Snow
Annual Rainfall67.2"
77% above US avg
Snowfall0.0"
Wettest Month (Jul)6.54"
Driest Month (Oct)3.46"
Air Quality
AQI Median
42.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Moderate
Risk Score
81.5 / 100
Social Vulnerability
40.4 / 100
Community Resilience
99.8 / 100
Hazard Breakdown
Tornado
Relatively Moderate
Hurricane
Relatively High
Earthquake
Very Low
Wildfire
Very Low
Flood
Relatively Low
Hail
Relatively Low
Strong Wind
Relatively Low
Heat Wave
Relatively Low
Winter Weather
Relatively Low
Lightning
Relatively Moderate
Ice Storm
Relatively Low
Drought
Relatively Moderate
Cold Wave
Relatively Low
Landslide
Very Low
Coastal Flood
Relatively Moderate
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.0.
Aug 2, 2010
16 km ESE of Clinton, Louisiana
M3.0
87 km
0 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
26 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 4.
Year
Name
Category
Max Wind
Closest
2024
Francine
Category 2
104 mph
62 km
2021
Ida
Category 4
150 mph
20 km
2020
Laura
Category 4
150 mph
266 km
2020
Zeta
Category 3
115 mph
65 km
2020
Delta
Category 2
104 mph
226 km
2020
Sally
Category 2
109 mph
245 km
2019
Barry
Category 1
75 mph
156 km
2017
Nate
Category 1
92 mph
132 km
2012
Isaac
Category 1
81 mph
75 km
2009
Ida
Category 1
86 mph
251 km
2008
Gustav
Category 2
109 mph
87 km
2007
Humberto
Category 1
75 mph
294 km
2005
Rita
Category 4
127 mph
288 km
2005
Katrina
Category 4
144 mph
93 km
2005
Cindy
Category 1
75 mph
107 km
2004
Ivan
Category 4
132 mph
256 km
2002
Lili
Category 4
121 mph
168 km
1998
Georges
Category 2
109 mph
163 km
1998
Earl
Category 2
98 mph
257 km
1997
Danny
Category 1
81 mph
116 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
560 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF4. Total: 39 fatalities, 813 injuries.
Date
Rating
Distance
Path
Fatalities
Dec 6, 1983
EF4
3 km
7.0 mi
0
Oct 3, 1964
EF4
56 km
1.5 mi
22
Mar 22, 2022
EF3
53 km
11.5 mi
1
Feb 7, 2017
EF3
54 km
10.1 mi
0
Feb 7, 2017
EF3
70 km
6.4 mi
0
Feb 23, 2016
EF3
51 km
7.8 mi
0
May 26, 2011
EF3
77 km
6.1 mi
0
Aug 25, 1992
EF3
10 km
9.0 mi
2
Oct 14, 1984
EF3
86 km
16.0 mi
0
Apr 26, 1973
EF3
69 km
0.3 mi
0
Feb 29, 1972
EF3
94 km
1.0 mi
0
Sep 16, 1971
EF3
62 km
7.3 mi
0
Mar 17, 1970
EF3
83 km
1.0 mi
0
Dec 25, 1969
EF3
77 km
13.5 mi
0
Apr 12, 1969
EF3
36 km
10.7 mi
0
Jan 28, 1966
EF3
28 km
0.1 mi
0
Mar 21, 1957
EF3
64 km
2.0 mi
0
Feb 6, 1953
EF3
47 km
15.6 mi
2
Apr 10, 2024
EF2
74 km
11.0 mi
0
Feb 8, 2023
EF2
85 km
3.5 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: UNIT 1 B (2,030 acres, 2000).
Year
Name
Acres Burned
Distance
2000
UNIT 1 B
2,030
63 km
1998
UNIT 4 CD
1,729
61 km
2009
SLIDELL AIRPORT
1,663
76 km
1998
UNIT 7
1,623
62 km
2008
UNNAMED
1,594
79 km
2011
BAD ROMANCE
1,305
63 km
2006
UNNAMED
1,206
60 km
2004
UNITS 1A-1B
1,108
63 km
2006
UNNAMED
1,102
83 km
2001
UNNAMED
950
62 km
2010
UNNAMED
904
21 km
2006
UNNAMED
866
99 km
2009
GOOSEPOINT C
864
62 km
1996
1 B
846
62 km
2006
BOY SCOUT EAST
826
65 km
1998
UNIT 2 A
821
64 km
1996
UNNAMED
809
80 km
2006
UNNAMED
801
96 km
1997
1 A
797
64 km
2000
UNNAMED
768
79 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
53°F (11°C)
5.4 in
Coldest
February
55°F (13°C)
5.8 in
March
61°F (16°C)
5.4 in
April
67°F (20°C)
4.6 in
May
74°F (23°C)
5.0 in
June
80°F (26°C)
5.5 in
July
83°F (28°C)
6.5 in
Warmest, Wettest
August
81°F (27°C)
6.0 in
September
78°F (26°C)
5.8 in
October
69°F (20°C)
3.5 in
Driest
November
60°F (16°C)
4.5 in
December
54°F (12°C)
5.4 in
Reserve has a seasonal temperature swing of 31°F / from 53°F in January to 83°F in July. Total annual precipitation is 63.4 inches, with July being the wettest month (6.5") and October the driest (3.5").