Sweetwater weather by month
What a typical year looks like in Sweetwater, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at ROSCOE, 11 km from Sweetwater; records cover 1937–2026.
The year at a glance
- Precipitation a year
- 21.2 in539 mm
- Snow a year
- 2.3 in5.8 cm
- Last spring freeze
- Mar 27
- First fall freeze
- Nov 7
- Heating degree days
- 2,772
- Cooling degree days
- 2,290
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 16°−9° (heating, 99%) and 104°40° (cooling, 1%).
Month by month
Sweetwater in January
Highs average 56°13° and lows 31°−1°, with 0.98 in25 mm of precipitation and 0.3 in0.8 cm of snow in a typical January.
- Record high
- 88°31° (1952)
- Record low
- −11°−24° (1947)
- Heating degree days
- 677
- Cooling degree days
- 0
Sweetwater in February
Highs average 60°16° and lows 34°1°, with 0.99 in25 mm of precipitation and 0.5 in1.3 cm of snow in a typical February.
- Record high
- 91°33° (1996)
- Record low
- −9°−23° (1985)
- Heating degree days
- 498
- Cooling degree days
- 3
Sweetwater in March
Highs average 69°20° and lows 42°5°, with 1.4 in35 mm of precipitation in a typical March.
- Record high
- 101°38° (2026)
- Record low
- 5°−15° (1948)
- Heating degree days
- 325
- Cooling degree days
- 19
Sweetwater in April
Highs average 78°25° and lows 50°10°, with 1.5 in38 mm of precipitation in a typical April.
- Record high
- 104°40° (2012)
- Record low
- 22°−6° (1940)
- Heating degree days
- 122
- Cooling degree days
- 86
Sweetwater in May
Highs average 85°29° and lows 60°16°, with 2.8 in71 mm of precipitation in a typical May.
- Record high
- 110°43° (2000)
- Record low
- 31°−1° (2013)
- Heating degree days
- 28
- Cooling degree days
- 256
Sweetwater in June
Highs average 91°33° and lows 68°20°, with 3.1 in79 mm of precipitation in a typical June.
- Record high
- 113°45° (1994)
- Record low
- 43°6° (1983)
- Heating degree days
- 1
- Cooling degree days
- 437
Sweetwater in July
Highs average 95°35° and lows 71°22°, with 1.8 in45 mm of precipitation in a typical July.
- Record high
- 110°43° (2020)
- Record low
- 54°12° (1952)
- Heating degree days
- 0
- Cooling degree days
- 556
Sweetwater in August
Highs average 94°34° and lows 71°21°, with 2.2 in56 mm of precipitation in a typical August.
- Record high
- 111°44° (2024)
- Record low
- 49°9° (2009)
- Heating degree days
- 0
- Cooling degree days
- 527
Sweetwater in September
Highs average 86°30° and lows 63°17°, with 2.1 in54 mm of precipitation in a typical September.
- Record high
- 107°42° (1953)
- Record low
- 35°2° (1989)
- Heating degree days
- 12
- Cooling degree days
- 297
Sweetwater in OctoberThis month
Highs average 77°25° and lows 53°11°, with 2.2 in56 mm of precipitation in a typical October.
- Record high
- 102°39° (1979)
- Record low
- 16°−9° (2019)
- Heating degree days
- 114
- Cooling degree days
- 100
Sweetwater in November
Highs average 65°18° and lows 41°5°, with 1.2 in29 mm of precipitation and 0.8 in2 cm of snow in a typical November.
- Record high
- 90°32° (1980)
- Record low
- 11°−12° (1938)
- Heating degree days
- 372
- Cooling degree days
- 9
Sweetwater in December
Highs average 57°14° and lows 33°1°, with 0.98 in25 mm of precipitation and 0.7 in1.8 cm of snow in a typical December.
- Record high
- 88°31° (1954)
- Record low
- −6°−21° (1989)
- Heating degree days
- 623
- Cooling degree days
- 0