Red River Research Station, Louisiana climate: Climate normals at a NOAA weather station
Red River Research Station's normal year runs from 36°F January nights to 93°F July afternoons, with 52.4 inches of precipitation and less than an inch of snow (0.2 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.7°C, January lows of 2°C, July highs of 34°C, 1,332 mm of precipitation a year.
- NOAA stationRed River Research Station
- Station IDUSC00167738
- Location32.42°N 93.64°W
- Elevation155 ft (47 m)
On October 23, the normal high in Red River Research Station is 76°F and the normal low 51°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Red River Research Station.
- Jan 57° 36°
- Feb 61° 40°
- Mar 69° 47°
- Apr 77° 54°
- May 84° 63°
- Jun 90° 71°
- Jul 93° 73°
- Aug 94° 72°
- Sep 89° 66°
- Oct 79° 54°
- Nov 67° 45°
- 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 at Red River Research Station each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 36°F. The most precipitation falls in April (5.56 in), the least in August (3.28 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 57°F | 36°F | 46.4°F | 4.88 | 10 | <1 | 12 | 10 h 10 min |
| February | 61°F | 40°F | 50.3°F | 4.43 | 10 | <1 | 7 | 11 h |
| March | 69°F | 47°F | 57.8°F | 5.07 | 10 | <1 | 2 | 12 h |
| April | 77°F | 54°F | 65.2°F | 5.56 | 8 | 1 | <1 | 13 h |
| May | 84°F | 63°F | 73.6°F | 4.54 | 9 | 7 | <1 | 13 h 50 min |
| June | 90°F | 71°F | 80.5°F | 4.23 | 8 | 19 | <1 | 14 h 20 min |
| July | 93°F | 73°F | 83.3°F | 3.41 | 8 | 27 | <1 | 14 h 10 min |
| August | 94°F | 72°F | 83.1°F | 3.28 | 7 | 26 | <1 | 13 h 20 min |
| September | 89°F | 66°F | 77.2°F | 3.46 | 6 | 16 | <1 | 12 h 20 min |
| October | 79°F | 54°F | 66.5°F | 4.54 | 7 | 3 | <1 | 11 h 30 min |
| November | 67°F | 45°F | 56.0°F | 4.03 | 8 | <1 | 3 | 10 h 30 min |
| December | 59°F | 38°F | 48.4°F | 5.00 | 10 | <1 | 11 | 10 h |
| Year (annual) | 77°F | 55°F | 65.7°F | 52.43 | 100 | 97 | 35 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | 2°C | 8.0°C | 124 mm |
| February | 16°C | 4°C | 10.2°C | 113 mm |
| March | 21°C | 8°C | 14.3°C | 129 mm |
| April | 25°C | 12°C | 18.4°C | 141 mm |
| May | 29°C | 17°C | 23.1°C | 115 mm |
| June | 32°C | 22°C | 26.9°C | 107 mm |
| July | 34°C | 23°C | 28.5°C | 87 mm |
| August | 34°C | 22°C | 28.4°C | 83 mm |
| September | 32°C | 19°C | 25.1°C | 88 mm |
| October | 26°C | 12°C | 19.2°C | 115 mm |
| November | 20°C | 7°C | 13.3°C | 102 mm |
| December | 15°C | 3°C | 9.1°C | 127 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00167738; 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.
Which months are mildest at Red River Research Station?
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 (7).
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 USC00167738.
When is the last frost at Red River Research Station?
In Red River Research Station, the last spring frost (32°F) comes after March 6 in half of years and after March 26 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 61 year in 10 after March 26; 9 in 10 after February 15
- First autumn frost, half of years before
- November 181 year in 10 before November 1; 9 in 10 before December 6
NOAA puts the median frost-free season at 256 days, and the season without a hard freeze (28°F) at 285 days.
A hard freeze (28°F) comes after February 22 in half of springs and before December 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Red River Research Station in zone 8b in ZIP code 71112, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 8b: the coldest night of a typical year reaches 19°F (27 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 USC00167738; 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 at Red River Research Station?
In a normal year in Red River Research Station, 97 days a year reach 90°F (8 of them 100°F or more), 35 nights fall to 32°F or colder and 100 days bring measurable precipitation.
- Days at 90°F or more
- 97a normal year
- Days at 100°F or more
- 8a normal year
- Nights at 32°F or colder
- 35a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 100a normal year
The highest temperature in this station's record (since 1969) is 108°F, on August 3, 1998; the lowest is 3°F, on December 23, 1989.
The wettest calendar year on that record is 1991, with 80.63 in; the snowiest season is 2020–21, with 10.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00167738; records: ACIS (NOAA Regional Climate Centers), station USC00167738. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Red River Research Station?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds at Red River Research Station, 4.6 kWh per square metre a day. August is the sunniest month (84%) and February the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 2.7 |
| February | 64% | 3.1 |
| March | 71% | 4.3 |
| April | 76% | 5.4 |
| May | 78% | 6.0 |
| June | 81% | 6.4 |
| July | 83% | 6.3 |
| August | 84% | 5.9 |
| September | 82% | 5.1 |
| October | 79% | 4.1 |
| November | 75% | 3.0 |
| December | 69% | 2.4 |
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 many heating and cooling degree days does Red River Research Station record?
A normal year at Red River Research Station brings 2,252 heating degree days, 58% fewer than the median U.S. place (5,373), and 2,532 cooling degree days, 2.8 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 6,279 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 581 | 3 |
| February | 419 | 6 |
| March | 255 | 30 |
| April | 91 | 97 |
| May | 11 | 276 |
| June | 0 | 467 |
| July | 0 | 567 |
| August | 0 | 559 |
| September | 4 | 370 |
| October | 80 | 127 |
| November | 292 | 23 |
| December | 519 | 6 |
| Year (annual) | 2,252 | 2,532 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00167738. 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.
Have recent years at Red River Research Station been warmer than normal?
2025 averaged 67.5°F, 1.8°F above the 1991-2020 normal of 65.7°F. 3 of the 3 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 65.8°F | +0.1°F | 47.00 |
| 2024 | 67.4°F | +1.7°F | 71.80 |
| 2025 | 67.5°F | +1.8°F | 45.64 |
Over 43 complete years from 1977 to 2025, the station's annual mean temperature rose at a fitted 7.9°F per century (+0.44°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00167738; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Red River Research Station's climate compare?
Red River Research Station is warmer than 20 of the 65 places with their own NOAA record in Louisiana, and wetter than 2. Across the 7,247 U.S. stations with normals, its annual mean of 65.7°F is warmer than 89%.
In the Köppen classification computed from these normals, Red River Research Station 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 Red River Research Station share this climate record?
4 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.
- Bossier City, LAalso near: Shreveport (12 mi, 66.6°F a year); Benton (12 mi, 64.4°F a year)63,218 people · 7 mi N
- Haughton, LA4,574 people · 11 mi NE
- Eastwood, LA4,057 people · 11 mi NE
- Frierson, LA24 people · 12 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 Red River Research Station's climate
What is the coldest month at Red River Research Station?
January, with a normal high of 57°F and a normal low of 36°F. The warmest is July (93°F by day, 73°F at night).
Does it snow at Red River Research Station?
Rarely: NOAA's normal is 0.2 inch a year.
What is the rainiest month at Red River Research Station?
April, with 5.56 in of precipitation in a normal year; the driest is August with 3.28 in.
What plant hardiness zone is Red River Research Station in?
The USDA's 2023 map puts Red River Research Station in zone 8b in ZIP code 71112, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 19°F (27 years, 1991-2020): zone 8b.
How late can frost come at Red River Research Station?
In half of years the last 32°F night comes after March 6; in one year in ten it comes after March 26. Waiting until March 26 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Louisiana climateThe statewide normals and every place in the state
- Shreveport, LA12 miles from this station, 66.6°F a year
- Benton, LA19 miles from this station, 64.4°F a year
- Minden, LA24 miles from this station, 65.3°F a year
- Mansfield, LA25 miles from this station, 65.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made