Fort Griffin, Texas climate: Climate normals at a NOAA weather station
Fort Griffin's normal year runs from 27°F January nights to 96°F July afternoons, with 27.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.3°C, January lows of −3°C, July highs of 36°C, 708 mm of precipitation a year.
- NOAA stationFort Griffin
- Station IDUSC00413265
- Location32.93°N 99.23°W
- Elevation1,275 ft (389 m)
On October 23, the normal high in Fort Griffin is 76°F and the normal low 46°F, and the chance of measurable rain or snow is 13%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Fort Griffin.
- Jan 57° 27°
- Feb 61° 32°
- Mar 69° 39°
- Apr 77° 48°
- May 85° 58°
- Jun 92° 67°
- Jul 96° 70°
- Aug 96° 69°
- Sep 88° 62°
- Oct 79° 49°
- Nov 67° 39°
- Dec 59° 30°
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 Fort Griffin each month?
July is the warmest month, with normal highs of 96°F; January the coldest, with normal lows of 27°F. The most precipitation falls in May (3.80 in), the least in January (1.17 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 57°F | 27°F | 42.2°F | 1.17 | 3 | <1 | 22 | 10 h 10 min |
| February | 61°F | 32°F | 46.9°F | 1.72 | 4 | <1 | 16 | 11 h |
| March | 69°F | 39°F | 53.8°F | 2.25 | 5 | 1 | 8 | 12 h |
| April | 77°F | 48°F | 62.5°F | 2.24 | 5 | 4 | 1 | 13 h |
| May | 85°F | 58°F | 71.6°F | 3.80 | 8 | 11 | <1 | 13 h 50 min |
| June | 92°F | 67°F | 79.6°F | 3.37 | 6 | 22 | <1 | 14 h 20 min |
| July | 96°F | 70°F | 83.0°F | 2.45 | 4 | 28 | <1 | 14 h 10 min |
| August | 96°F | 69°F | 82.3°F | 2.37 | 5 | 27 | <1 | 13 h 20 min |
| September | 88°F | 62°F | 75.0°F | 2.80 | 5 | 18 | <1 | 12 h 30 min |
| October | 79°F | 49°F | 64.2°F | 2.60 | 4 | 4 | 2 | 11 h 30 min |
| November | 67°F | 39°F | 52.7°F | 1.71 | 4 | <1 | 8 | 10 h 30 min |
| December | 59°F | 30°F | 44.5°F | 1.38 | 4 | <1 | 19 | 10 h |
| Year (annual) | 77°F | 49°F | 63.2°F | 27.86 | 54 | 116 | 77 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | −3°C | 5.7°C | 30 mm |
| February | 16°C | 0°C | 8.3°C | 44 mm |
| March | 20°C | 4°C | 12.1°C | 57 mm |
| April | 25°C | 9°C | 16.9°C | 57 mm |
| May | 29°C | 15°C | 22.0°C | 97 mm |
| June | 33°C | 19°C | 26.4°C | 86 mm |
| July | 36°C | 21°C | 28.3°C | 62 mm |
| August | 35°C | 20°C | 27.9°C | 60 mm |
| September | 31°C | 17°C | 23.9°C | 71 mm |
| October | 26°C | 10°C | 17.9°C | 66 mm |
| November | 19°C | 4°C | 11.5°C | 43 mm |
| December | 15°C | −1°C | 6.9°C | 35 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Albany (16 miles away), gets 2 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00413265; 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 Fort Griffin?
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 (4).
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 USC00413265.
When is the last frost at Fort Griffin?
In Fort Griffin, the last spring frost (32°F) comes after March 28 in half of years and after April 20 in one year in ten; the first autumn frost comes before November 6 in half of years and before October 20 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 281 year in 10 after April 20; 9 in 10 after March 7
- First autumn frost, half of years before
- November 61 year in 10 before October 20; 9 in 10 before November 23
NOAA puts the median frost-free season at 222 days, and the season without a hard freeze (28°F) at 249 days.
A hard freeze (28°F) comes after March 12 in half of springs and before November 16 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Fort Griffin in zone 8a in ZIP code 76430, the nearest ZIP area.
Frost dates for every NOAA station in Texas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00413265; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Fort Griffin?
In a normal year in Fort Griffin, 116 days a year reach 90°F (36 of them 100°F or more), 77 nights fall to 32°F or colder and 54 days bring measurable precipitation.
- Days at 90°F or more
- 116a normal year
- Days at 100°F or more
- 36a normal year
- Nights at 32°F or colder
- 77a normal year
- Days that stay below freezing
- 3high of 32°F or less
- Days with 0.01 inch of precipitation
- 54a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00413265.
How sunny is it at Fort Griffin?
Over a year 83% of the sunlight that would reach the ground under clear skies gets through the clouds at Fort Griffin, 5.1 kWh per square metre a day. July is the sunniest month (88%) and February the cloudiest (76%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 3.2 |
| February | 76% | 3.9 |
| March | 79% | 5.0 |
| April | 82% | 6.1 |
| May | 81% | 6.5 |
| June | 88% | 7.2 |
| July | 88% | 7.0 |
| August | 87% | 6.4 |
| September | 84% | 5.3 |
| October | 83% | 4.3 |
| November | 82% | 3.4 |
| December | 78% | 2.9 |
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 Fort Griffin record?
A normal year at Fort Griffin brings 2,917 heating degree days, 46% fewer than the median U.S. place (5,373), and 2,276 cooling degree days, 2.5 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 5,675 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 707 | 0 |
| February | 512 | 4 |
| March | 363 | 14 |
| April | 147 | 72 |
| May | 36 | 240 |
| June | 0 | 437 |
| July | 0 | 556 |
| August | 0 | 534 |
| September | 8 | 308 |
| October | 126 | 100 |
| November | 381 | 10 |
| December | 638 | 1 |
| Year (annual) | 2,917 | 2,276 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00413265. 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 Fort Griffin been warmer than normal?
2025 averaged 65.7°F, 2.5°F above the 1991-2020 normal of 63.2°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 63.9°F | +0.7°F | 24.54 |
| 2022 | 65.5°F | +2.3°F | 21.18 |
| 2023 | 67.2°F | +4.0°F | 24.15 |
| 2024 | 67.1°F | +3.9°F | 32.14 |
| 2025 | 65.7°F | +2.5°F | 32.96 |
Source: observed years: ACIS, station USC00413265. A year counts only with all twelve months complete.
How does Fort Griffin's climate compare?
Fort Griffin is warmer than 64 of the 321 places with their own NOAA record in Texas, and wetter than 135. Across the 7,247 U.S. stations with normals, its annual mean of 63.2°F is warmer than 83%.
In the Köppen classification computed from these normals, Fort Griffin 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 Fort Griffin share this climate record?
Woodson 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.
- Woodson, TX236 people · 12 mi NE
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 Fort Griffin's climate
What is the coldest month at Fort Griffin?
January, with a normal high of 57°F and a normal low of 27°F. The warmest is July (96°F by day, 70°F at night).
Does it snow at Fort Griffin?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Albany (16 miles away), records 2 inches of snow in a normal year.
What is the rainiest month at Fort Griffin?
May, with 3.80 in of precipitation in a normal year; the driest is January with 1.17 in.
What plant hardiness zone is Fort Griffin in?
The USDA's 2023 map puts Fort Griffin in zone 8a in ZIP code 76430, the nearest ZIP area.
How late can frost come at Fort Griffin?
In half of years the last 32°F night comes after March 28; in one year in ten it comes after April 20. Waiting until April 20 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Albany, TX16 miles from this station, 64.1°F a year
- Breckenridge, TX23 miles from this station, 63.7°F a year
- Throckmorton (10 mi N), TX27 miles from this station, 63.9°F a year
- Stamford, TX33 miles from this station, 64.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made