Wright Patman Dam & Lake, Texas climate: Climate normals at a NOAA weather station
Wright Patman Dam & Lake's normal year runs from 35°F January nights to 92°F July afternoons, with 50.6 inches of precipitation and less than an inch of snow (0.9 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.1°C, January lows of 2°C, July highs of 34°C, 1,285 mm of precipitation a year.
- NOAA stationWright Patman Dam & Lake
- Station IDUSC00419916
- Location33.30°N 94.16°W
- Elevation282 ft (86 m)
On October 23, the normal high in Wright Patman Dam & Lake is 73°F and the normal low 52°F, and the chance of measurable rain or snow is 27%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Wright Patman Dam & Lake.
- Jan 54° 35°
- Feb 59° 39°
- Mar 66° 46°
- Apr 74° 54°
- May 81° 63°
- Jun 88° 71°
- Jul 92° 74°
- Aug 92° 73°
- Sep 87° 66°
- Oct 76° 54°
- Nov 64° 44°
- Dec 56° 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 Wright Patman Dam & Lake each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 35°F. The most precipitation falls in May (5.24 in), the least in August (3.20 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 54°F | 35°F | 44.6°F | 4.10 | 9 | <1 | 15 | 10 h 10 min |
| February | 59°F | 39°F | 48.5°F | 4.46 | 10 | <1 | 8 | 11 h |
| March | 66°F | 46°F | 56.4°F | 4.61 | 10 | <1 | 3 | 12 h |
| April | 74°F | 54°F | 64.0°F | 4.24 | 8 | <1 | <1 | 13 h |
| May | 81°F | 63°F | 72.2°F | 5.24 | 10 | 3 | <1 | 13 h 50 min |
| June | 88°F | 71°F | 79.6°F | 4.38 | 8 | 15 | <1 | 14 h 20 min |
| July | 92°F | 74°F | 83.0°F | 3.64 | 7 | 24 | <1 | 14 h 10 min |
| August | 92°F | 73°F | 82.6°F | 3.20 | 6 | 23 | <1 | 13 h 30 min |
| September | 87°F | 66°F | 76.4°F | 3.29 | 7 | 11 | <1 | 12 h 30 min |
| October | 76°F | 54°F | 65.2°F | 4.28 | 8 | 1 | <1 | 11 h 20 min |
| November | 64°F | 44°F | 54.3°F | 4.39 | 9 | <1 | 5 | 10 h 30 min |
| December | 56°F | 38°F | 47.0°F | 4.78 | 10 | <1 | 13 | 10 h |
| Year (annual) | 74°F | 55°F | 64.5°F | 50.61 | 101 | 77 | 44 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 12°C | 2°C | 7.0°C | 104 mm |
| February | 15°C | 4°C | 9.2°C | 113 mm |
| March | 19°C | 8°C | 13.6°C | 117 mm |
| April | 23°C | 12°C | 17.8°C | 108 mm |
| May | 27°C | 17°C | 22.3°C | 133 mm |
| June | 31°C | 22°C | 26.4°C | 111 mm |
| July | 34°C | 23°C | 28.3°C | 92 mm |
| August | 33°C | 23°C | 28.1°C | 81 mm |
| September | 30°C | 19°C | 24.7°C | 84 mm |
| October | 24°C | 12°C | 18.4°C | 109 mm |
| November | 18°C | 7°C | 12.4°C | 112 mm |
| December | 13°C | 3°C | 8.3°C | 121 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00419916; 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 Wright Patman Dam & Lake?
Normal highs sit between 65°F and 85°F in March, April, May and October. 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 USC00419916.
When is the last frost at Wright Patman Dam & Lake?
In Wright Patman Dam & Lake, the last spring frost (32°F) comes after March 4 in half of years and after March 24 in one year in ten; the first autumn frost comes before November 21 in half of years and before November 3 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 41 year in 10 after March 24; 9 in 10 after February 13
- First autumn frost, half of years before
- November 211 year in 10 before November 3; 9 in 10 before December 11
NOAA puts the median frost-free season at 261 days, and the season without a hard freeze (28°F) at 291 days.
A hard freeze (28°F) comes after February 19 in half of springs and before December 5 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Wright Patman Dam & Lake in zone 8b in ZIP code 75501, 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 17°F (15 complete years).
Frost dates for every NOAA station in Texas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00419916; 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 Wright Patman Dam & Lake?
In a normal year in Wright Patman Dam & Lake, 77 days a year reach 90°F (6 of them 100°F or more), 44 nights fall to 32°F or colder and 101 days bring measurable precipitation.
- Days at 90°F or more
- 77a normal year
- Days at 100°F or more
- 6a normal year
- Nights at 32°F or colder
- 44a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 101a normal year
The highest temperature in this station's record (since 1955) is 109°F, on September 4, 2000; the lowest is −1°F, on December 23, 1989.
The wettest calendar year on that record is 2009, with 70.27 in; the snowiest season is 2001–02, with 10.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00419916; records: ACIS (NOAA Regional Climate Centers), station USC00419916. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Wright Patman Dam & Lake?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds at Wright Patman Dam & Lake, 4.5 kWh per square metre a day. August is the sunniest month (85%) and February the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.7 |
| February | 65% | 3.1 |
| March | 70% | 4.2 |
| April | 74% | 5.3 |
| May | 76% | 5.8 |
| June | 82% | 6.5 |
| July | 84% | 6.4 |
| August | 85% | 6.0 |
| September | 82% | 5.0 |
| October | 79% | 4.0 |
| November | 75% | 2.9 |
| December | 71% | 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 Wright Patman Dam & Lake record?
A normal year at Wright Patman Dam & Lake brings 2,515 heating degree days, 53% fewer than the median U.S. place (5,373), and 2,361 cooling degree days, 2.6 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 5,957 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 633 | 3 |
| February | 465 | 4 |
| March | 290 | 23 |
| April | 107 | 78 |
| May | 14 | 236 |
| June | 0 | 440 |
| July | 0 | 558 |
| August | 0 | 545 |
| September | 7 | 348 |
| October | 100 | 106 |
| November | 335 | 16 |
| December | 563 | 4 |
| Year (annual) | 2,515 | 2,361 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00419916. 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 Wright Patman Dam & Lake's climate compare?
Wright Patman Dam & Lake is warmer than 106 of the 321 places with their own NOAA record in Texas, and wetter than 286. Across the 7,247 U.S. stations with normals, its annual mean of 64.5°F is warmer than 87%.
In the Köppen classification computed from these normals, Wright Patman Dam & Lake 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 Wright Patman Dam & Lake share this climate record?
3 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.
- Maud, TX985 people · 11 mi W
- Fouke, AR801 people · 16 mi E
- Domino, TX79 people · 4 mi SE
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 Wright Patman Dam & Lake's climate
What is the coldest month at Wright Patman Dam & Lake?
January, with a normal high of 54°F and a normal low of 35°F. The warmest is July (92°F by day, 74°F at night).
Does it snow at Wright Patman Dam & Lake?
Rarely: NOAA's normal is 0.9 inch a year.
What is the rainiest month at Wright Patman Dam & Lake?
May, with 5.24 in of precipitation in a normal year; the driest is August with 3.20 in.
What plant hardiness zone is Wright Patman Dam & Lake in?
The USDA's 2023 map puts Wright Patman Dam & Lake in zone 8b in ZIP code 75501, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 17°F (15 years, 1991-2020): zone 8b.
How late can frost come at Wright Patman Dam & Lake?
In half of years the last 32°F night comes after March 4; in one year in ten it comes after March 24. Waiting until March 24 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Texarkana, TX11 miles from this station, 64.0°F a year
- Atlanta, TX12 miles from this station, 64.3°F a year
- Texarkana, AR14 miles from this station, 64.0°F a year
- Ashdown, AR22 miles from this station, 62.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made