Clinton, Louisiana climate: Normal weather by month, frost dates and records
Clinton's normal year runs from 38°F January nights to 90°F July afternoons, with 59.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.7°C, January lows of 3°C, July highs of 32°C, 1,516 mm of precipitation a year.
- NOAA stationClinton (5 mi SE)
- Station IDUSC00161899
- Location30.82°N 90.97°W
- Elevation200 ft (61 m)
- Population1,297
On October 24, the normal high in Clinton is 76°F and the normal low 51°F, and the chance of measurable rain or snow is 21%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Clinton.
- Jan 60° 38°
- Feb 65° 41°
- Mar 71° 47°
- Apr 77° 53°
- May 83° 61°
- Jun 89° 68°
- Jul 90° 70°
- Aug 90° 70°
- Sep 87° 66°
- Oct 79° 55°
- Nov 69° 45°
- Dec 62° 40°
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 Clinton each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 38°F. The most precipitation falls in June (6.02 in), the least in November (3.70 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 60°F | 38°F | 48.8°F | 5.87 | 10 | <1 | 10 | 10 h 20 min |
| February | 65°F | 41°F | 52.7°F | 5.45 | 8 | <1 | 6 | 11 h |
| March | 71°F | 47°F | 58.8°F | 4.86 | 8 | <1 | 2 | 12 h |
| April | 77°F | 53°F | 65.1°F | 5.47 | 7 | <1 | <1 | 12 h 50 min |
| May | 83°F | 61°F | 72.2°F | 4.87 | 8 | 4 | <1 | 13 h 40 min |
| June | 89°F | 68°F | 78.4°F | 6.02 | 11 | 15 | <1 | 14 h 10 min |
| July | 90°F | 70°F | 80.2°F | 4.69 | 12 | 21 | <1 | 14 h |
| August | 90°F | 70°F | 80.1°F | 5.08 | 9 | 21 | <1 | 13 h 20 min |
| September | 87°F | 66°F | 76.3°F | 4.30 | 6 | 12 | <1 | 12 h 20 min |
| October | 79°F | 55°F | 66.8°F | 4.33 | 6 | 1 | <1 | 11 h 30 min |
| November | 69°F | 45°F | 57.0°F | 3.70 | 7 | <1 | 3 | 10 h 40 min |
| December | 62°F | 40°F | 51.2°F | 5.05 | 8 | <1 | 8 | 10 h 10 min |
| Year (annual) | 77°F | 55°F | 65.6°F | 59.69 | 99 | 73 | 29 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 16°C | 3°C | 9.3°C | 149 mm |
| February | 18°C | 5°C | 11.5°C | 138 mm |
| March | 22°C | 8°C | 14.9°C | 123 mm |
| April | 25°C | 12°C | 18.4°C | 139 mm |
| May | 29°C | 16°C | 22.3°C | 124 mm |
| June | 31°C | 20°C | 25.8°C | 153 mm |
| July | 32°C | 21°C | 26.8°C | 119 mm |
| August | 32°C | 21°C | 26.7°C | 129 mm |
| September | 31°C | 19°C | 24.6°C | 109 mm |
| October | 26°C | 13°C | 19.3°C | 110 mm |
| November | 21°C | 7°C | 13.9°C | 94 mm |
| December | 17°C | 5°C | 10.7°C | 128 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00161899; 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 Clinton?
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 USC00161899.
When is the last frost in Clinton?
In Clinton, the last spring frost (32°F) comes after March 13 in half of years and after April 4 in one year in ten; the first autumn frost comes before November 17 in half of years and before November 1 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 131 year in 10 after April 4; 9 in 10 after February 18
- First autumn frost, half of years before
- November 171 year in 10 before November 1; 9 in 10 before December 6
NOAA puts the median frost-free season at 251 days, and the season without a hard freeze (28°F) at 283 days.
A hard freeze (28°F) comes after February 27 in half of springs and before December 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Clinton in zone 9a in ZIP code 70722, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Clinton's NOAA station is in zone 9a: the coldest night of a typical year reaches 20°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 USC00161899; 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 Clinton?
In a normal year in Clinton, 73 days a year reach 90°F (1 of them 100°F or more), 29 nights fall to 32°F or colder and 99 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
- 29a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 99a normal year
The highest temperature in this station's record (since 1975) is 106°F, on August 31, 2000; the lowest is 1°F, on December 24, 1989.
The wettest calendar year on that record is 1983, with 78.35 in; the snowiest season is 1977–78, with 2.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00161899; records: ACIS (NOAA Regional Climate Centers), station USC00161899. Records use complete months only; a month missing more than three days is left out.
How sunny is Clinton?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Clinton, 4.7 kWh per square metre a day. October is the sunniest month (83%) and February the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 72% | 2.9 |
| February | 69% | 3.5 |
| March | 75% | 4.6 |
| April | 79% | 5.7 |
| May | 81% | 6.3 |
| June | 79% | 6.1 |
| July | 78% | 5.8 |
| August | 79% | 5.5 |
| September | 82% | 5.1 |
| October | 83% | 4.4 |
| November | 80% | 3.4 |
| December | 71% | 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 Clinton need?
A normal year in Clinton brings 1,957 heating degree days, 64% fewer than the median U.S. place (5,373), and 2,222 cooling degree days, 2.4 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 6,115 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 505 | 5 |
| February | 354 | 11 |
| March | 225 | 33 |
| April | 87 | 90 |
| May | 12 | 233 |
| June | 0 | 400 |
| July | 0 | 473 |
| August | 0 | 470 |
| September | 2 | 343 |
| October | 72 | 130 |
| November | 263 | 24 |
| December | 438 | 12 |
| Year (annual) | 1,957 | 2,222 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00161899. 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 Clinton's climate compare?
Clinton is warmer than 19 of the other 64 places with their own NOAA record in Louisiana, and wetter than 27. Across the 7,247 U.S. stations with normals, its annual mean of 65.6°F is warmer than 89%.
In the Köppen classification computed from these normals, Clinton 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 Clinton share this climate record?
Slaughter has no NOAA station with 1991-2020 normals of its 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.
- Slaughter, LA989 people · 11 mi SW
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 Clinton's climate
What is the coldest month in Clinton?
January, with a normal high of 60°F and a normal low of 38°F. The warmest is July (90°F by day, 70°F at night).
Does it snow in Clinton?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Clinton?
June, with 6.02 in of precipitation in a normal year; the driest is November with 3.70 in.
What plant hardiness zone is Clinton in?
The USDA's 2023 map puts Clinton in zone 9a in ZIP code 70722, the nearest ZIP area. By the same method at Clinton's NOAA station, the coldest night of a typical year reaches 20°F (18 years, 1991-2020): zone 9a.
How late can frost come in Clinton?
In half of years the last 32°F night comes after March 13; in one year in ten it comes after April 4. Waiting until April 4 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Louisiana climateThe statewide normals and every place in the state
- Baton Rouge, LA22 miles from this station, 68.5°F a year
- St. Francisville, LA24 miles from this station, 66.2°F a year
- New Roads, LA24 miles from this station, 68.8°F a year
- Woodville, MS24 miles from this station, 66.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made