Flat weather by month
What a typical year looks like in Flat, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. No nearby active station has official 1991–2020 normals, so these are forecast.blue’s own averages computed from daily observations at Gatesville Municipal Airport, 21 km from Flat, over its available record (2009–2026) — not an NCEI normal; records cover 2009–2026.
The year at a glance
- Precipitation a year
- 20.1 in511 mm
- Snow a year
- Rare
- Last spring freeze
- Mar 13
- First fall freeze
- Nov 13
- Heating degree days
- —
- Cooling degree days
- —
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 21°−6° (heating, 99%) and 104°40° (cooling, 1%).
Month by month
Flat in January
Highs average 60°15° and lows 36°2°, with 1.3 in33 mm of precipitation in a typical January.
- Record high
- 86°30° (2023)
- Record low
- 9°−13° (2018)
- Heating degree days
- —
- Cooling degree days
- —
Flat in February
Highs average 63°17° and lows 40°5°, with 0.9 in23 mm of precipitation in a typical February.
- Record high
- 95°35° (2024)
- Record low
- 0°−18° (2021)
- Heating degree days
- —
- Cooling degree days
- —
Flat in March
Highs average 73°23° and lows 49°9°, with 1.3 in33 mm of precipitation in a typical March.
- Record high
- 95°35° (2026)
- Record low
- 19°−7° (2014)
- Heating degree days
- —
- Cooling degree days
- —
Flat in April
Highs average 78°26° and lows 56°13°, with 2 in51 mm of precipitation in a typical April.
- Record high
- 97°36° (2022)
- Record low
- 32°0° (2025)
- Heating degree days
- —
- Cooling degree days
- —
Flat in May
Highs average 85°29° and lows 64°18°, with 3.3 in84 mm of precipitation in a typical May.
- Record high
- 100°38° (2011)
- Record low
- 37°3° (2013)
- Heating degree days
- —
- Cooling degree days
- —
Flat in June
Highs average 93°34° and lows 72°22°, with 1.7 in43 mm of precipitation in a typical June.
- Record high
- 106°41° (2011)
- Record low
- 57°14° (2013)
- Heating degree days
- —
- Cooling degree days
- —
Flat in July
Highs average 96°36° and lows 74°23°, with 1.6 in41 mm of precipitation in a typical July.
- Record high
- 111°44° (2018)
- Record low
- 59°15° (2013)
- Heating degree days
- —
- Cooling degree days
- —
Flat in August
Highs average 97°36° and lows 74°23°, with 1 in25 mm of precipitation in a typical August.
- Record high
- 109°43° (2023)
- Record low
- 63°17° (2010)
- Heating degree days
- —
- Cooling degree days
- —
Flat in September
Highs average 90°32° and lows 68°20°, with 2.4 in61 mm of precipitation in a typical September.
- Record high
- 108°42° (2023)
- Record low
- 46°8° (2020)
- Heating degree days
- —
- Cooling degree days
- —
Flat in OctoberThis month
Highs average 81°27° and lows 57°14°, with 2.4 in61 mm of precipitation in a typical October.
- Record high
- 102°39° (2024)
- Record low
- 28°−2° (2019)
- Heating degree days
- —
- Cooling degree days
- —
Flat in November
Highs average 69°21° and lows 46°8°, with 1.2 in30 mm of precipitation in a typical November.
- Record high
- 91°33° (2017)
- Record low
- 21°−6° (2019)
- Heating degree days
- —
- Cooling degree days
- —
Flat in December
Highs average 62°17° and lows 40°4°, with 1 in25 mm of precipitation in a typical December.
- Record high
- 86°30° (2024)
- Record low
- 12°−11° (2022)
- Heating degree days
- —
- Cooling degree days
- —
Gatesville station, 1900–2021: records and averages
This station is no longer reporting, but its 1900–2021 record is the longest and most local history available. These are its own averages over its own period of record — not NCEI normals, and not the same station as the computed averages above.
January
Average high 60°16°, low 35°2°, 2 in51 mm precipitation.
Record high 95°35° (1943); record low −6°−21° (1949).
February
Average high 64°18°, low 39°4°, 2.3 in58 mm precipitation.
Record high 100°38° (1996); record low −8°−22° (2021).
March
Average high 72°22°, low 46°8°, 2.4 in61 mm precipitation.
Record high 98°37° (1936); record low 13°−11° (1980).
April
Average high 79°26°, low 54°12°, 3.4 in86 mm precipitation.
Record high 102°39° (1904); record low 27°−3° (1940).
May
Average high 85°29°, low 62°17°, 4.4 in112 mm precipitation.
Record high 102°39° (1959); record low 33°1° (1903).
June
Average high 92°33°, low 69°21°, 3.3 in84 mm precipitation.
Record high 108°42° (1936); record low 48°9° (1964).
July
Average high 97°36°, low 72°22°, 2.1 in53 mm precipitation.
Record high 112°44° (2018); record low 56°13° (1968).
August
Average high 97°36°, low 72°22°, 2.4 in61 mm precipitation.
Record high 112°44° (1943); record low 53°12° (1915).
September
Average high 91°33°, low 66°19°, 3.1 in79 mm precipitation.
Record high 112°44° (2000); record low 36°2° (1942).
October
Average high 81°27°, low 55°13°, 3.3 in84 mm precipitation.
Record high 104°40° (1938); record low 21°−6° (1917).
November
Average high 70°21°, low 44°7°, 2.5 in64 mm precipitation.
Record high 93°34° (1955); record low 13°−11° (1976).
December
Average high 62°17°, low 37°3°, 2.2 in56 mm precipitation.
Record high 90°32° (1951); record low −4°−20° (1989).