Photo: Infrogmation of New Orleans · CC BY 3.0Mandeville’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 92°, a January night drops to 41°, and snow is almost unheard of.
A year in Mandeville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Mandeville’s climate
Compared with towns across the U.S., with Mandeville’s place in Louisiana beside it.
What a year in Mandeville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 253 frost-free days a year
In half of years the last 32° night comes by March 12 and the first by November 18. Frost and day counts come from NOAA’s station at Covington 4 Nnw, LA, 10 miles from the town’s center, at about the same height.
The 2023 USDA map puts Mandeville’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 25°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 64 inches of rain a year
July is the wettest month and October the driest. Rain falls on about 103 days a year. Snow is rare: about 0.1" in a normal year at Covington 4 Nnw, LA, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Mandeville
41% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55°: December and January.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Covington 4 Nnw, LA.
Living with Mandeville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
253 frost-free days in zone 9a. The last frost comes by Mar 12 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 18.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, October, November and December. 0.8 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Mandeville from natural hazards, hurricanes are the largest share (66%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Mandeville and similar climates
TownRatings has no climate map of the towns around Mandeville yet.
Climates most like Mandeville’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Mandeville, LA | 41° | 92° | 64" | 0.1" |
| Milton, FL | 41° | 91° | 63" | 0.1" |
| Vidor, TX | 42° | 92° | 61" | 0.1" |
| Atmore, AL | 39° | 92° | 64" | 0.1" |
| Magalia, CA | 38° | 92° | 61" | 0.1" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Mandeville averaged 0.9° warmer than the 1900s. The biggest change is in February (+1.5°).
A smaller shift than in 87% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Mandeville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Mandeville’s place among Louisiana’s.
Mandeville weather by month
Highs, lows and precipitation from NOAA’s grid at Mandeville’s center; snow, wet days and snow on the ground from Covington 4 Nnw, LA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 62° | 41° | 5.7" | 0.0" | 9 | 0 | 44° – 58° |
| February | 66° | 45° | 4.7" | 0.0" | 8 | 0 | 46° – 65° |
| March | 73° | 50° | 5.2" | 0.1" | 9 | 0 | 56° – 70° |
| April | 79° | 57° | 5.3" | 0.0" | 6 | 0 | 62° – 72° |
| May | 85° | 64° | 5.3" | 0.0" | 7 | 0 | 71° – 78° |
| June | 90° | 71° | 6.5" | 0.0" | 11 | 0 | 78° – 84° |
| July | 92° | 73° | 7.0" | 0.0" | 13 | 0 | 80° – 85° |
| August | 92° | 73° | 6.5" | 0.0" | 10 | 0 | 79° – 86° |
| September | 88° | 69° | 4.7" | 0.0" | 8 | 0 | 76° – 82° |
| October | 80° | 58° | 4.0" | 0.0" | 6 | 0 | 65° – 75° |
| November | 71° | 48° | 4.0" | 0.0" | 7 | 0 | 54° – 64° |
| December | 64° | 43° | 5.1" | 0.0" | 8 | 0 | 47° – 61° |
| Year | 78° | 58° | 63.9" | 0.1" | 103 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 46° to 65°. July is the most reliable, staying within 5°.
Where Mandeville’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Mandeville’s center.
- Snow: Covington 4 Nnw, LA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Covington 4 Nnw, LA, 10 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Mandeville’s climate
What is the weather like in Mandeville?
A typical July afternoon reaches 92°, a January night drops to 41°, and snow is almost unheard of. Milder January nights than 90% of U.S. towns; hotter July afternoons than 86% of U.S. towns.
How cold does it get in Mandeville in winter?
January nights average 41°. About 29 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 44°.
How much snow does Mandeville get?
About 0.1 inches in a normal winter at Covington 4 Nnw, LA, so most winters see none.
How hot does it get in Mandeville?
July, with a typical high of 92° and a low of 73°. About 83 days a year reach 90° and 2 reach 100° (Covington 4 Nnw, LA).
When is the first and last frost in Mandeville?
In half of years the last spring frost (32°) comes by March 12 and the first fall frost by November 18, about 253 frost-free days, at Covington 4 Nnw, LA.
What growing zone is Mandeville in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 25°.
What is the best time of year to visit Mandeville?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Mandeville getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 87% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Mandeville.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.