Lake Alan Henry, Texas climate: Climate normals at a NOAA weather station
Lake Alan Henry's normal year runs from 30°F January nights to 95°F July afternoons, with 20.2 inches of precipitation and 3 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.4°C, January lows of −1°C, July highs of 35°C, 514 mm of precipitation a year.
- NOAA stationLake Alan Henry
- Station IDUSC00414967
- Location33.06°N 101.05°W
- Elevation2,280 ft (695 m)
On October 23, the normal high in Lake Alan Henry is 75°F and the normal low 49°F, and the chance of measurable rain or snow is 14%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Lake Alan Henry.
- Jan 56° 30°
- Feb 60° 33°
- Mar 68° 41°
- Apr 77° 49°
- May 84° 59°
- Jun 92° 68°
- Jul 95° 72°
- Aug 94° 71°
- Sep 87° 63°
- Oct 77° 52°
- Nov 65° 40°
- Dec 57° 32°
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 Lake Alan Henry each month?
July is the warmest month, with normal highs of 95°F; January the coldest, with normal lows of 30°F. The most precipitation falls in June (2.99 in), the least in December (0.80 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 56°F | 30°F | 43.0°F | 0.81 | 0.3 | 3 | <1 | 21 | 10 h 10 min |
| February | 60°F | 33°F | 46.7°F | 0.86 | 1.6 | 4 | <1 | 14 | 11 h |
| March | 68°F | 41°F | 54.6°F | 1.37 | 0.0 | 4 | 1 | 6 | 12 h |
| April | 77°F | 49°F | 62.9°F | 1.66 | 0.1 | 4 | 3 | 1 | 13 h |
| May | 84°F | 59°F | 71.9°F | 2.52 | 0.0 | 6 | 12 | <1 | 13 h 50 min |
| June | 92°F | 68°F | 79.8°F | 2.99 | 0.0 | 6 | 19 | <1 | 14 h 20 min |
| July | 95°F | 72°F | 83.4°F | 2.04 | 0.0 | 4 | 26 | <1 | 14 h 10 min |
| August | 94°F | 71°F | 82.6°F | 1.93 | 0.0 | 5 | 25 | <1 | 13 h 20 min |
| September | 87°F | 63°F | 74.9°F | 2.13 | 0.0 | 5 | 12 | <1 | 12 h 30 min |
| October | 77°F | 52°F | 64.3°F | 1.85 | 0.1 | 5 | 3 | 1 | 11 h 20 min |
| November | 65°F | 40°F | 52.8°F | 1.26 | 0.4 | 3 | <1 | 6 | 10 h 30 min |
| December | 57°F | 32°F | 44.3°F | 0.80 | 0.9 | 3 | <1 | 17 | 10 h |
| Year (annual) | 76°F | 51°F | 63.4°F | 20.22 | 3.4 | 52 | 100 | 65 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 13°C | −1°C | 6.1°C | 21 mm | 1 cm |
| February | 16°C | 1°C | 8.2°C | 22 mm | 4 cm |
| March | 20°C | 5°C | 12.6°C | 35 mm | 0 cm |
| April | 25°C | 9°C | 17.2°C | 42 mm | 0 cm |
| May | 29°C | 15°C | 22.2°C | 64 mm | 0 cm |
| June | 33°C | 20°C | 26.6°C | 76 mm | 0 cm |
| July | 35°C | 22°C | 28.6°C | 52 mm | 0 cm |
| August | 35°C | 22°C | 28.1°C | 49 mm | 0 cm |
| September | 30°C | 17°C | 23.8°C | 54 mm | 0 cm |
| October | 25°C | 11°C | 17.9°C | 47 mm | 0 cm |
| November | 19°C | 5°C | 11.6°C | 32 mm | 1 cm |
| December | 14°C | 0°C | 6.8°C | 20 mm | 2 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00414967; 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 Lake Alan Henry?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, November has the fewest days with rain (3).
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 USC00414967.
When is the last frost at Lake Alan Henry?
In Lake Alan Henry, the last spring frost (32°F) comes after March 29 in half of years and after April 18 in one year in ten; the first autumn frost comes before November 10 in half of years and before October 26 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 291 year in 10 after April 18; 9 in 10 after March 7
- First autumn frost, half of years before
- November 101 year in 10 before October 26; 9 in 10 before November 27
NOAA puts the median frost-free season at 225 days, and the season without a hard freeze (28°F) at 251 days.
A hard freeze (28°F) comes after March 13 in half of springs and before November 19 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Lake Alan Henry in zone 8a in ZIP code 79549, 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 8a: the coldest night of a typical year reaches 11°F (26 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 USC00414967; 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 Lake Alan Henry?
In a normal year in Lake Alan Henry, 100 days a year reach 90°F (23 of them 100°F or more), 65 nights fall to 32°F or colder and 52 days bring measurable precipitation.
- Days at 90°F or more
- 100a normal year
- Days at 100°F or more
- 23a normal year
- Nights at 32°F or colder
- 65a normal year
- Days that stay below freezing
- 5high of 32°F or less
- Days with 0.01 inch of precipitation
- 52a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1994) is 116°F, on June 28, 1994; the lowest is −5°F, on February 15, 2021.
The wettest calendar year on that record is 2004, with 44.92 in; the snowiest season is 2020–21, with 19.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00414967; records: ACIS (NOAA Regional Climate Centers), station USC00414967. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Lake Alan Henry?
Over a year 86% of the sunlight that would reach the ground under clear skies gets through the clouds at Lake Alan Henry, 5.3 kWh per square metre a day. June is the sunniest month (90%) and February the cloudiest (80%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 84% | 3.3 |
| February | 80% | 4.1 |
| March | 82% | 5.3 |
| April | 85% | 6.5 |
| May | 84% | 7.0 |
| June | 90% | 7.6 |
| July | 89% | 7.2 |
| August | 89% | 6.7 |
| September | 85% | 5.5 |
| October | 84% | 4.4 |
| November | 85% | 3.5 |
| December | 82% | 3.0 |
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 Lake Alan Henry record?
A normal year at Lake Alan Henry brings 2,860 heating degree days, 47% fewer than the median U.S. place (5,373), and 2,318 cooling degree days, 2.6 times the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,755 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 682 | 0 |
| February | 516 | 2 |
| March | 339 | 18 |
| April | 141 | 76 |
| May | 34 | 246 |
| June | 0 | 446 |
| July | 0 | 570 |
| August | 0 | 544 |
| September | 12 | 307 |
| October | 120 | 99 |
| November | 375 | 9 |
| December | 640 | 0 |
| Year (annual) | 2,860 | 2,318 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00414967. 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 Lake Alan Henry been warmer than normal?
2025 averaged 65.3°F, 1.9°F above the 1991-2020 normal of 63.4°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 64.1°F | +0.7°F | 23.21 | 18.0 |
| 2022 | 64.5°F | +1.1°F | 13.83 | 1.7 |
| 2023 | 65.9°F | +2.5°F | 22.35 | 2.0 |
| 2024 | 66.3°F | +2.9°F | 22.77 | 1.5 |
| 2025 | 65.3°F | +1.9°F | 15.36 | 1.0 |
Source: observed years: ACIS, station USC00414967. A year counts only with all twelve months complete.
How does Lake Alan Henry's climate compare?
Lake Alan Henry is warmer than 68 of the 321 places with their own NOAA record in Texas, and wetter than 58. Across the 7,247 U.S. stations with normals, its annual mean of 63.4°F is warmer than 84%.
In the Köppen classification computed from these normals, Lake Alan Henry 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 Lake Alan Henry share this climate record?
Fluvanna 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.
- Fluvanna, TX63 people · 14 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 Lake Alan Henry's climate
What is the coldest month at Lake Alan Henry?
January, with a normal high of 56°F and a normal low of 30°F. The warmest is July (95°F by day, 72°F at night).
Does it snow at Lake Alan Henry?
Yes: 3 inches in a normal year, falling on 3 days with 0.1 inch or more, the most in February (1.6 inches).
What is the rainiest month at Lake Alan Henry?
June, with 2.99 in of precipitation in a normal year; the driest is December with 0.80 in.
What plant hardiness zone is Lake Alan Henry in?
The USDA's 2023 map puts Lake Alan Henry in zone 8a in ZIP code 79549, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 11°F (26 years, 1991-2020): zone 8a.
How late can frost come at Lake Alan Henry?
In half of years the last 32°F night comes after March 29; in one year in ten it comes after April 18. Waiting until April 18 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Post, TX21 miles from this station, 62.6°F a year
- Snyder, TX25 miles from this station, 63.3°F a year
- White River Reservoir, TX27 miles from this station, 62.2°F a year
- Spur, TX30 miles from this station, 61.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made