Jena, Louisiana climate: Normal weather by month, frost dates and records
Jena's normal year runs from 36°F January nights to 91°F July afternoons, with 59.5 inches of precipitation and less than an inch of snow (0.5 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.3°C, January lows of 2°C, July highs of 33°C, 1,512 mm of precipitation a year.
- NOAA stationJena
- Station IDUSC00164696
- Location31.68°N 92.13°W
- Elevation143 ft (44 m)
- Population4,133
On October 23, the normal high in Jena is 76°F and the normal low 51°F, and the chance of measurable rain or snow is 20%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Jena.
- Jan 57° 36°
- Feb 62° 40°
- Mar 69° 47°
- Apr 76° 53°
- May 83° 62°
- Jun 89° 69°
- Jul 91° 72°
- Aug 92° 71°
- Sep 88° 65°
- Oct 78° 54°
- Nov 67° 44°
- Dec 59° 38°
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 Jena each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 36°F. The most precipitation falls in December (5.82 in), the least in September (3.60 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 57°F | 36°F | 46.6°F | 5.69 | 9 | <1 | 13 | 10 h 20 min |
| February | 62°F | 40°F | 50.6°F | 5.53 | 8 | <1 | 8 | 11 h |
| March | 69°F | 47°F | 57.9°F | 5.71 | 8 | <1 | 4 | 12 h |
| April | 76°F | 53°F | 64.4°F | 5.38 | 7 | <1 | <1 | 13 h |
| May | 83°F | 62°F | 72.4°F | 4.43 | 7 | 4 | <1 | 13 h 40 min |
| June | 89°F | 69°F | 78.8°F | 4.86 | 8 | 16 | <1 | 14 h 10 min |
| July | 91°F | 72°F | 81.5°F | 4.51 | 9 | 23 | <1 | 14 h |
| August | 92°F | 71°F | 81.2°F | 3.80 | 7 | 24 | <1 | 13 h 20 min |
| September | 88°F | 65°F | 76.4°F | 3.60 | 5 | 14 | <1 | 12 h 20 min |
| October | 78°F | 54°F | 65.8°F | 4.72 | 6 | 2 | 1 | 11 h 30 min |
| November | 67°F | 44°F | 55.4°F | 5.46 | 7 | <1 | 5 | 10 h 30 min |
| December | 59°F | 38°F | 48.8°F | 5.82 | 8 | <1 | 11 | 10 h 10 min |
| Year (annual) | 76°F | 54°F | 65.0°F | 59.51 | 89 | 83 | 42 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | 2°C | 8.1°C | 145 mm |
| February | 16°C | 4°C | 10.3°C | 140 mm |
| March | 21°C | 8°C | 14.4°C | 145 mm |
| April | 24°C | 12°C | 18.0°C | 137 mm |
| May | 28°C | 17°C | 22.4°C | 113 mm |
| June | 32°C | 20°C | 26.0°C | 123 mm |
| July | 33°C | 22°C | 27.5°C | 115 mm |
| August | 33°C | 22°C | 27.3°C | 97 mm |
| September | 31°C | 19°C | 24.7°C | 91 mm |
| October | 26°C | 12°C | 18.8°C | 120 mm |
| November | 19°C | 7°C | 13.0°C | 139 mm |
| December | 15°C | 4°C | 9.3°C | 148 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00164696; 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 Jena?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, October has the fewest days with rain (6).
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 USC00164696.
When is the last frost in Jena?
In Jena, the last spring frost (32°F) comes after March 19 in half of years and after April 9 in one year in ten; the first autumn frost comes before November 12 in half of years and before October 29 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
- March 191 year in 10 after April 9; 9 in 10 after February 25
- First autumn frost, half of years before
- November 121 year in 10 before October 29; 9 in 10 before December 2
NOAA puts the median frost-free season at 238 days, and the season without a hard freeze (28°F) at 267 days.
A hard freeze (28°F) comes after March 1 in half of springs and before November 25 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Jena in zone 8b in ZIP code 71342, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Jena's NOAA station is in zone 8b: the coldest night of a typical year reaches 18°F (18 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 USC00164696; 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 Jena?
In a normal year in Jena, 83 days a year reach 90°F (4 of them 100°F or more), 42 nights fall to 32°F or colder and 89 days bring measurable precipitation.
- Days at 90°F or more
- 83a normal year
- Days at 100°F or more
- 4a normal year
- Nights at 32°F or colder
- 42a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 89a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00164696.
How sunny is Jena?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Jena, 4.6 kWh per square metre a day. August is the sunniest month (82%) and February the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 2.8 |
| February | 65% | 3.2 |
| March | 71% | 4.4 |
| April | 76% | 5.4 |
| May | 79% | 6.0 |
| June | 80% | 6.2 |
| July | 81% | 6.1 |
| August | 82% | 5.8 |
| September | 81% | 5.1 |
| October | 81% | 4.2 |
| November | 78% | 3.2 |
| December | 69% | 2.5 |
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 Jena need?
A normal year in Jena brings 2,275 heating degree days, 58% fewer than the median U.S. place (5,373), and 2,297 cooling degree days, 2.5 times the median (908). Four months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,033 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 572 | 3 |
| February | 410 | 8 |
| March | 254 | 33 |
| April | 106 | 87 |
| May | 16 | 244 |
| June | 0 | 414 |
| July | 0 | 511 |
| August | 0 | 504 |
| September | 5 | 347 |
| October | 94 | 119 |
| November | 307 | 20 |
| December | 511 | 7 |
| Year (annual) | 2,275 | 2,297 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00164696. 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.
How does Jena's climate compare?
Jena is warmer than 9 of the other 64 places with their own NOAA record in Louisiana, and wetter than 25. Across the 7,247 U.S. stations with normals, its annual mean of 65.0°F is warmer than 88%.
In the Köppen classification computed from these normals, Jena 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 Jena 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.
- Olla, LA1,294 people · 17 mi NW
- Urania, LA1,127 people · 16 mi NW
- Midway, LA852 people · 1 mi W
- Good Pine, LA338 people · 2 mi NW
- Tullos, LA302 people · 15 mi NW
- Georgetown, LA274 people · 16 mi W
- Harrisonburg, LA262 people · 19 mi E
- Trout, LA0 people · 3 mi NW
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 Jena's climate
What is the coldest month in Jena?
January, with a normal high of 57°F and a normal low of 36°F. The warmest is July (91°F by day, 72°F at night).
Does it snow in Jena?
Rarely: NOAA's normal is 0.5 inch a year.
What is the rainiest month in Jena?
December, with 5.82 in of precipitation in a normal year; the driest is September with 3.60 in.
What plant hardiness zone is Jena in?
The USDA's 2023 map puts Jena in zone 8b in ZIP code 71342, the nearest ZIP area. By the same method at Jena's NOAA station, the coldest night of a typical year reaches 18°F (18 years, 1991-2020): zone 8b.
How late can frost come in Jena?
In half of years the last 32°F night comes after March 19; in one year in ten it comes after April 9. Waiting until April 9 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Louisiana climateThe statewide normals and every place in the state
- Jonesville, LA21 miles from this station, 65.2°F a year
- Columbia, LA34 miles from this station, 65.5°F a year
- Alexandria, LA35 miles from this station, 66.9°F a year
- Winnfield, LA37 miles from this station, 65.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made