Covington, Louisiana climate: Normal weather by month, frost dates and records
Covington's normal year runs from 40°F January nights to 90°F August afternoons, with 62.5 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 19.4°C, January lows of 5°C, August highs of 32°C, 1,588 mm of precipitation a year.
- NOAA stationCovington (4 mi NNW)
- Station IDUSC00162151
- Location30.53°N 90.11°W
- Elevation40 ft (12 m)
- Population11,686
On October 23, the normal high in Covington is 77°F and the normal low 54°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 Covington.
- Jan 62° 40°
- Feb 66° 44°
- Mar 72° 49°
- Apr 78° 55°
- May 84° 63°
- Jun 89° 69°
- Jul 90° 71°
- Aug 90° 72°
- Sep 87° 68°
- Oct 79° 57°
- Nov 70° 47°
- Dec 64° 43°
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 Covington each month?
August is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 40°F. The most precipitation falls in June (6.66 in), the least in November (4.03 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 62°F | 40°F | 50.8°F | 5.60 | 9 | <1 | 9 | 10 h 20 min |
| February | 66°F | 44°F | 54.6°F | 4.64 | 8 | <1 | 5 | 11 h 10 min |
| March | 72°F | 49°F | 60.7°F | 5.03 | 9 | <1 | 3 | 12 h |
| April | 78°F | 55°F | 66.6°F | 5.31 | 6 | <1 | <1 | 12 h 50 min |
| May | 84°F | 63°F | 73.5°F | 5.27 | 7 | 5 | <1 | 13 h 40 min |
| June | 89°F | 69°F | 79.1°F | 6.66 | 11 | 19 | <1 | 14 h 10 min |
| July | 90°F | 71°F | 80.7°F | 6.40 | 13 | 23 | <1 | 14 h |
| August | 90°F | 72°F | 80.8°F | 6.00 | 10 | 23 | <1 | 13 h 20 min |
| September | 87°F | 68°F | 77.1°F | 4.12 | 8 | 11 | <1 | 12 h 20 min |
| October | 79°F | 57°F | 68.1°F | 4.52 | 6 | 2 | <1 | 11 h 30 min |
| November | 70°F | 47°F | 58.4°F | 4.03 | 7 | <1 | 3 | 10 h 40 min |
| December | 64°F | 43°F | 53.0°F | 4.93 | 8 | <1 | 9 | 10 h 10 min |
| Year (annual) | 78°F | 56°F | 67.0°F | 62.51 | 103 | 83 | 29 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 16°C | 5°C | 10.4°C | 142 mm |
| February | 19°C | 6°C | 12.6°C | 118 mm |
| March | 22°C | 9°C | 15.9°C | 128 mm |
| April | 25°C | 13°C | 19.2°C | 135 mm |
| May | 29°C | 17°C | 23.1°C | 134 mm |
| June | 32°C | 21°C | 26.2°C | 169 mm |
| July | 32°C | 22°C | 27.1°C | 163 mm |
| August | 32°C | 22°C | 27.1°C | 152 mm |
| September | 30°C | 20°C | 25.1°C | 105 mm |
| October | 26°C | 14°C | 20.1°C | 115 mm |
| November | 21°C | 8°C | 14.7°C | 102 mm |
| December | 18°C | 6°C | 11.7°C | 125 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00162151; 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 Covington?
Normal highs sit between 65°F and 85°F in February, 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 USC00162151.
When is the last frost in Covington?
In Covington, the last spring frost (32°F) comes after March 12 in half of years and after April 3 in one year in ten; the first autumn frost comes before November 18 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 121 year in 10 after April 3; 9 in 10 after February 13
- First autumn frost, half of years before
- November 181 year in 10 before November 1; 9 in 10 before December 12
NOAA puts the median frost-free season at 253 days, and the season without a hard freeze (28°F) at 290 days.
A hard freeze (28°F) comes after February 19 in half of springs and before December 3 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Covington in zone 9a in ZIP code 70433. By the map's own method, the average of each year's coldest night over 1991-2020, Covington's NOAA station is in zone 8b: the coldest night of a typical year reaches 20°F (17 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Louisiana · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00162151; 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 Covington?
In a normal year in Covington, 83 days a year reach 90°F (2 of them 100°F or more), 29 nights fall to 32°F or colder and 103 days bring measurable precipitation.
- Days at 90°F or more
- 83a normal year
- Days at 100°F or more
- 2a 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
- 103a normal year
The highest temperature in this station's record (since 1956) is 107°F, on August 30, 2000; the lowest is 7°F, on January 21, 1985.
The wettest calendar year on that record is 1961, with 96.86 in; the snowiest season is 1972–73, with 5.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00162151; records: ACIS (NOAA Regional Climate Centers), station USC00162151. Records use complete months only; a month missing more than three days is left out.
How sunny is Covington?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Covington, 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 Covington need?
A normal year in Covington brings 1,670 heating degree days, 69% fewer than the median U.S. place (5,373), and 2,406 cooling degree days, 2.7 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 6,473 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 446 | 7 |
| February | 304 | 14 |
| March | 178 | 45 |
| April | 66 | 113 |
| May | 6 | 271 |
| June | 0 | 421 |
| July | 0 | 487 |
| August | 0 | 488 |
| September | 1 | 364 |
| October | 56 | 152 |
| November | 231 | 32 |
| December | 384 | 13 |
| Year (annual) | 1,670 | 2,406 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00162151. 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 Covington been warmer than normal lately?
2025 averaged 69.1°F, 2.1°F above the 1991-2020 normal of 67.0°F. 3 of the 3 complete years since 2023 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2023 | 69.9°F | +2.9°F | 39.30 |
| 2024 | 69.7°F | +2.7°F | 59.91 |
| 2025 | 69.1°F | +2.1°F | 41.31 |
Over 80 complete years from 1902 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 USC00162151; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Covington's climate compare?
Covington is warmer than 32 of the other 64 places with their own NOAA record in Louisiana, and wetter than 42. Across the 7,247 U.S. stations with normals, its annual mean of 67.0°F is warmer than 92%.
In the Köppen classification computed from these normals, Covington 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 Covington share this climate record?
5 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.
- Mandeville, LA12,973 people · 10 mi S
- Abita Springs, LA2,752 people · 7 mi SE
- Madisonville, LA875 people · 9 mi S
- Folsom, LA829 people · 9 mi NW
- Lewisburg, LA242 people · 11 mi S
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 Covington's climate
What is the coldest month in Covington?
January, with a normal high of 62°F and a normal low of 40°F. The warmest is August (90°F by day, 72°F at night).
Does it snow in Covington?
Rarely: NOAA's normal is 0.1 inch a year.
What is the rainiest month in Covington?
June, with 6.66 in of precipitation in a normal year; the driest is November with 4.03 in.
What plant hardiness zone is Covington in?
The USDA's 2023 map puts Covington in zone 9a in ZIP code 70433. By the same method at Covington's NOAA station, the coldest night of a typical year reaches 20°F (17 years, 1991-2020): zone 8b.
How late can frost come in Covington?
In half of years the last 32°F night comes after March 12; in one year in ten it comes after April 3. Waiting until April 3 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Covington in OctoberThis month day by day, its records and recent years
- Louisiana climateThe statewide normals and every place in the state
- Hammond, LA16 miles from this station, 66.8°F a year
- Slidell, LA21 miles from this station, 67.7°F a year
- Bogalusa, LA23 miles from this station, 67.3°F a year
- Picayune, MS24 miles from this station, 66.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made