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Climate in New Sarpy · NOAA 1991–2020 normals

Hardly any U.S. towns collect more precipitation than New Sarpy: 64 inches a year

January nights here settle around 43°. Only 48° separates winter nights from summer afternoons. Winters are mild: January nights here are milder than in 92% of U.S. towns. Garden chairs stay out from October to April, the months with highs of 63–81°.

Milder January nights than 92% of U.S. towns#41Mildest winters  of 160 in LA
Wetter than all but 109 U.S. towns#21 wettest of 160 in LA
All LA rankings →

A year in New Sarpy at a glance

Each month’s typical high and low, and what it brings.

Jan63°43°
Feb67°47°
Mar73°52°
Apr79°59°
May86°66° 6 days 90°+
Jun90°72° 18 days 90°+
Jul92°74° 23 days 90°+Wettest
Aug92°74° 23 days 90°+
Sep88°70° 13 days 90°+
Oct81°61° 2 days 90°+
Nov now71°50°
Dec65°46°

What stands out about New Sarpy’s climate

Compared with towns across the U.S., with New Sarpy’s place in Louisiana beside it.

A normal year

What a year in New Sarpy feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
65° / 45°
Snow is rare
Spring
79° / 59°
Frost is rare
Summer
91° / 74°
85 days reach 90°
Fall
80° / 60°
Frost is rare
Best months to be outsideJanFebMarAprOctNovDecHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

A freeze most winters

Frost and day counts come from NOAA’s station at New Orleans International Airport, 8 miles from the town’s center, at about the same height.

Most winters bring a freeze, but not every one. A night at 32° or below comes in about 87% of years at New Orleans International Airport (about 9 winters in 10), and averages 5.4 a year.
5
nights at or below 32° in a normal year
11th fewest of 160 in Louisiana
Fewer freezing nights than 93% of U.S. towns
0
nights at or below 0°
None in a normal year
85
days that reach 90°
87th most of 160 in Louisiana
More 90° days than 88% of U.S. towns
<1
days that reach 100°
118th most of 160 in Louisiana
More 100° days than 52% of U.S. towns
9bUSDA zone
Plant hardiness zone 9b

The 2023 USDA map puts New Sarpy’s center in zone 9b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 28°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

3
JFMAMJJASOND

90° days by month

Average days at 90° or more

23
JFMAMJJASOND
Rain & snow

About 64 inches of rain a year

July is the wettest month and November the driest. Rain falls on about 115 days a year. Snow is rare: about 0.0" in a normal year at New Orleans International Airport, so most winters see none.

64"
Rain + melted snow a year
21st wettest of 160 in Louisiana
Wetter than all but 109 U.S. towns
0.0"
Snow in a normal winter
Less snow than 93% of U.S. towns

Rain + melted snow by month

Inches of water

7.4"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in New Sarpy

27% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55° run from January.

1,176 heating degree daysLess heating than 94% of U.S. towns
3,206 cooling degree daysMore cooling than 94% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at New Orleans International Airport.

Living here

Living with New Sarpy’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

Zone 9b. Frost comes about 9 winters in 10, so tender plants can often stay out through winter.

Get outside

Months with highs of 62–84° and lows of 40° or more: January, February, March, April, October, November and December.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in New Sarpy from natural hazards, hurricanes are the largest share (64%); heat waves, cold waves, winter storms and ice storms together are 8%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

New Sarpy and its neighbors

Every town next door is within a degree of New Sarpy in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Luling: January low 44°, July high 92°St. Rose: January low 44°, July high 92°Taft: January low 43°, July high 92°Norco: January low 43°, July high 92°Destrehan: January low 44°, July high 92°Hahnville: January low 43°, July high 92°New Sarpy: January low 43°, July high 92°New SarpyNorcoDestrehanHahnville
ColderMilder43° to 44°
New Sarpy43.4°
Norco43.4° about the same
Hahnville43.4° about the same
Destrehan43.6° about the same

Climates most like New Sarpy’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.

TownJan. lowJuly highPrecip.Snow
New Sarpy, LA43°92°64"0.0"
Gonzalez, FL42°91°64"0.0"
Orange, TX42°91°62"0.0"
Foley, AL42°91°63"0.1"
Magalia, CA38°92°61"0.1"

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.

Then and now

Warmer than it used to be

The last 30 years in New Sarpy averaged 0.9° warmer than the 1900s. The biggest change is in February (+1.6°).

+0.9°1991–2020 vs. 1901–2000

A smaller shift than in 83% of U.S. towns.

Winter+1.0°now 55°, was 54°
Spring+0.9°now 69°, was 68°
Summer+0.7°now 82°, was 82°
Fall+1.0°now 70°, was 69°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How New Sarpy compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with New Sarpy’s place among Louisiana’s.

Summer heat92° July high
Hotter July afternoons than 86% of U.S. towns58th hottest of 160 in Louisiana
Winter cold43° January low
Milder January nights than 92% of U.S. towns41st mildest of 160 in Louisiana
Precipitation64" a year
Wetter than all but 109 U.S. towns21st wettest of 160 in Louisiana
Snow0.0" a winter
Less snow than 93% of U.S. townsNot ranked: under an inch a year
Hot days85 days at 90°+
More 90° days than 88% of U.S. towns87th most of 160 in Louisiana
Freezing nights5 a year
Fewer freezing nights than 93% of U.S. towns11th fewest of 160 in Louisiana
Month by month

New Sarpy weather by month

Highs, lows and precipitation from NOAA’s grid at New Sarpy’s center; snow, wet days and snow on the ground from New Orleans International Airport. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January63°43°5.4"0.0"10046° – 59°
February67°47°4.1"0.0"9047° – 67°
March73°52°4.6"0.0"8057° – 71°
April79°59°5.0"0.0"7064° – 73°
May86°66°5.5"0.0"8072° – 79°
June90°72°7.2"0.0"13079° – 84°
July92°74°7.4"0.0"14081° – 85°
August92°74°7.2"0.0"14080° – 86°
September88°70°5.2"0.0"10077° – 83°
October81°61°4.0"0.0"7067° – 76°
November71°50°3.8"0.0"7055° – 65°
December65°46°4.8"0.0"9049° – 63°
Year79°60°64.1"0.0"1150
Year to year

How much a month can swing

A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 47° to 67°. July is the most reliable, staying within 4°.

Coldest to warmest month in 30 yearsNormal
Sources

Where New Sarpy’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 New Sarpy’s center.
  • Snow: New Orleans International Airport.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: New Orleans International Airport, 8 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 New Sarpy’s climate

What is the weather like in New Sarpy?

A typical July afternoon reaches 92°, a January night drops to 43°, and snow is almost unheard of. Milder January nights than 92% of U.S. towns; hotter July afternoons than 86% of U.S. towns.

How cold does it get in New Sarpy in winter?

January nights average 43°. About 5 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 46°.

How much snow does New Sarpy get?

About 0.0 inches in a normal winter at New Orleans International Airport, so most winters see none.

How hot does it get in New Sarpy?

July, with a typical high of 92° and a low of 74°. About 85 days a year reach 90° (New Orleans International Airport).

When is the first and last frost in New Sarpy?

There is no reliable frost date: a 32° night comes in about 87% of winters at New Orleans International Airport, so most years bring a freeze but some pass without one.

What growing zone is New Sarpy in?

Zone 9b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 28°.

What is the best time of year to visit New Sarpy?

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 New Sarpy getting warmer?

Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 83% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in New Sarpy.

Town Square →
Ask your neighbors

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.