Jennings, Louisiana climate: Normal weather by month, frost dates and records
Jennings's normal year runs from 42°F January nights to 91°F August afternoons, with 63.5 inches of precipitation and less than an inch of snow (0.1 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 19.9°C, January lows of 5°C, August highs of 33°C, 1,613 mm of precipitation a year.
- NOAA stationJennings
- Station IDUSC00164700
- Location30.20°N 92.66°W
- Elevation25 ft (8 m)
- Population9,280
On October 24, the normal high in Jennings is 78°F and the normal low 56°F, and the chance of measurable rain or snow is 26%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Jennings.
- Jan 60° 42°
- Feb 64° 45°
- Mar 71° 52°
- Apr 77° 58°
- May 84° 66°
- Jun 89° 72°
- Jul 90° 74°
- Aug 91° 73°
- Sep 88° 69°
- Oct 80° 59°
- Nov 70° 49°
- Dec 63° 44°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Jennings each month?
August is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 42°F. The most precipitation falls in August (6.80 in), the least in March (3.77 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 60°F | 42°F | 50.9°F | 6.29 | 12 | <1 | 6 | 10 h 20 min |
| February | 64°F | 45°F | 54.5°F | 4.25 | 10 | <1 | 3 | 11 h 10 min |
| March | 71°F | 52°F | 61.1°F | 3.77 | 9 | <1 | 1 | 12 h |
| April | 77°F | 58°F | 67.5°F | 4.79 | 8 | <1 | <1 | 12 h 50 min |
| May | 84°F | 66°F | 74.8°F | 5.52 | 8 | 3 | <1 | 13 h 40 min |
| June | 89°F | 72°F | 80.3°F | 6.61 | 12 | 13 | <1 | 14 h |
| July | 90°F | 74°F | 81.9°F | 5.36 | 14 | 20 | <1 | 14 h |
| August | 91°F | 73°F | 82.1°F | 6.80 | 13 | 23 | <1 | 13 h 20 min |
| September | 88°F | 69°F | 78.3°F | 5.80 | 10 | 13 | <1 | 12 h 20 min |
| October | 80°F | 59°F | 69.5°F | 4.73 | 8 | 2 | <1 | 11 h 30 min |
| November | 70°F | 49°F | 59.7°F | 4.85 | 9 | <1 | 1 | 10 h 40 min |
| December | 63°F | 44°F | 53.1°F | 4.74 | 11 | <1 | 4 | 10 h 10 min |
| Year (annual) | 77°F | 59°F | 67.8°F | 63.51 | 124 | 73 | 15 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 16°C | 5°C | 10.5°C | 160 mm |
| February | 18°C | 7°C | 12.5°C | 108 mm |
| March | 22°C | 11°C | 16.2°C | 96 mm |
| April | 25°C | 14°C | 19.7°C | 122 mm |
| May | 29°C | 19°C | 23.8°C | 140 mm |
| June | 31°C | 22°C | 26.8°C | 168 mm |
| July | 32°C | 23°C | 27.7°C | 136 mm |
| August | 33°C | 23°C | 27.8°C | 173 mm |
| September | 31°C | 21°C | 25.7°C | 147 mm |
| October | 27°C | 15°C | 20.8°C | 120 mm |
| November | 21°C | 10°C | 15.4°C | 123 mm |
| December | 17°C | 6°C | 11.7°C | 120 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00164700; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Jennings?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, April has the fewest days with rain (8).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00164700.
When is the last frost in Jennings?
In Jennings, the last spring frost (32°F) comes after February 19 in half of years and after March 13 in one year in ten; the first autumn frost comes before December 4 in half of years and before November 12 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- February 191 year in 10 after March 13; 9 in 10 after January 21
- First autumn frost, half of years before
- December 41 year in 10 before November 12; 9 in 10 before January 4
NOAA puts the median frost-free season at 292 days, and the season without a hard freeze (28°F) at 330 days.
A hard freeze (28°F) comes after January 31 in half of springs and before December 28 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Jennings in zone 9a in ZIP code 70546, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Jennings's NOAA station is in zone 9a: the coldest night of a typical year reaches 25°F (30 complete years).
Frost dates for every NOAA station in Louisiana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00164700; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Jennings?
In a normal year in Jennings, 73 days a year reach 90°F (1 of them 100°F or more), 15 nights fall to 32°F or colder and 124 days bring measurable precipitation.
- Days at 90°F or more
- 73a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 15a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 124a normal year
The highest temperature in this station's record (since 1897) is 107°F, on August 28, 2023; the lowest is 7°F, on January 22, 2025.
The wettest calendar year on that record is 1940, with 104.89 in; the snowiest season is 2024–25, with 8.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00164700; records: ACIS (NOAA Regional Climate Centers), station USC00164700. Records use complete months only; a month missing more than three days is left out.
How sunny is Jennings?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Jennings, 4.6 kWh per square metre a day. October is the sunniest month (82%) and February the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 2.9 |
| February | 66% | 3.3 |
| March | 73% | 4.5 |
| April | 77% | 5.5 |
| May | 80% | 6.1 |
| June | 79% | 6.1 |
| July | 79% | 5.9 |
| August | 80% | 5.6 |
| September | 81% | 5.1 |
| October | 82% | 4.4 |
| November | 79% | 3.4 |
| December | 70% | 2.6 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Jennings need?
A normal year in Jennings brings 1,618 heating degree days, 70% fewer than the median U.S. place (5,373), and 2,667 cooling degree days, 2.9 times the median (908). Three months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,804 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 447 | 8 |
| February | 308 | 14 |
| March | 171 | 50 |
| April | 54 | 128 |
| May | 4 | 308 |
| June | 0 | 457 |
| July | 0 | 525 |
| August | 0 | 530 |
| September | 1 | 401 |
| October | 42 | 183 |
| November | 202 | 44 |
| December | 387 | 17 |
| Year (annual) | 1,618 | 2,667 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00164700. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Jennings been warmer than normal lately?
2025 averaged 69.1°F, 1.3°F above the 1991-2020 normal of 67.8°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 67.9°F | +0.1°F | 61.51 |
| 2022 | 67.8°F | at normal | 47.08 |
| 2023 | 70.5°F | +2.7°F | 50.18 |
| 2024 | 70.1°F | +2.3°F | 61.25 |
| 2025 | 69.1°F | +1.3°F | 59.15 |
Over 97 complete years from 1900 to 2025, the station's annual mean temperature rose at a fitted 0.1°F per century (+0.01°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00164700; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Jennings's climate compare?
Jennings is warmer than 39 of the other 64 places with their own NOAA record in Louisiana, and wetter than 47. Across the 7,247 U.S. stations with normals, its annual mean of 67.8°F is warmer than 93%.
In the Köppen classification computed from these normals, Jennings is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Jennings share this climate record?
8 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Welsh, LA3,275 people · 9 mi W
- Gueydan, LA1,124 people · 15 mi SE
- Egan, LA966 people · 10 mi E
- Roanoke, LA724 people · 6 mi NW
- Morse, LA598 people · 11 mi SE
- Mermentau, LA496 people · 5 mi E
- Midland, LA266 people · 10 mi E
- Lacassine, LA175 people · 15 mi W
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Jennings's climate
What is the coldest month in Jennings?
January, with a normal high of 60°F and a normal low of 42°F. The warmest is August (91°F by day, 73°F at night).
Does it snow in Jennings?
Rarely: NOAA's normal is 0.1 inch a year.
What is the rainiest month in Jennings?
August, with 6.80 in of precipitation in a normal year; the driest is March with 3.77 in.
What plant hardiness zone is Jennings in?
The USDA's 2023 map puts Jennings in zone 9a in ZIP code 70546, the nearest ZIP area. By the same method at Jennings's NOAA station, the coldest night of a typical year reaches 25°F (30 years, 1991-2020): zone 9a.
How late can frost come in Jennings?
In half of years the last 32°F night comes after February 19; in one year in ten it comes after March 13. Waiting until March 13 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Louisiana climateThe statewide normals and every place in the state
- Lake Arthur, LA14 miles from this station, 69.0°F a year
- Crowley, LA19 miles from this station, 68.2°F a year
- Eunice, LA24 miles from this station, 67.7°F a year
- Oberlin, LA29 miles from this station, 66.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made