Lyons weather by month
What a typical year looks like in Lyons, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Somerville Dam, 8 km from Lyons; records cover 1963–2026.
The year at a glance
- Precipitation a year
- 40.9 in1040 mm
- Snow a year
- Rare
- Last spring freeze
- Mar 10
- First fall freeze
- Nov 17
- Heating degree days
- 1,934
- Cooling degree days
- 2,690
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
Lyons in January
Highs average 62°17° and lows 35°2°, with 3.2 in81 mm of precipitation in a typical January.
- Record high
- 89°32° (2000)
- Record low
- 7°−14° (2010)
- Heating degree days
- 514
- Cooling degree days
- 4
Lyons in February
Highs average 66°19° and lows 39°4°, with 2.9 in74 mm of precipitation in a typical February.
- Record high
- 96°36° (1996)
- Record low
- 11°−12° (2011)
- Heating degree days
- 360
- Cooling degree days
- 7
Lyons in March
Highs average 73°23° and lows 46°8°, with 3.2 in82 mm of precipitation in a typical March.
- Record high
- 91°33° (1971)
- Record low
- 16°−9° (2002)
- Heating degree days
- 218
- Cooling degree days
- 38
Lyons in April
Highs average 80°27° and lows 53°12°, with 3.3 in85 mm of precipitation in a typical April.
- Record high
- 96°36° (2006)
- Record low
- 27°−3° (2011)
- Heating degree days
- 70
- Cooling degree days
- 108
Lyons in May
Highs average 87°31° and lows 62°16°, with 4.7 in120 mm of precipitation in a typical May.
- Record high
- 110°43° (1996)
- Record low
- 31°−1° (2011)
- Heating degree days
- 8
- Cooling degree days
- 293
Lyons in June
Highs average 93°34° and lows 68°20°, with 3.9 in100 mm of precipitation in a typical June.
- Record high
- 109°43° (2009)
- Record low
- 52°11° (1988)
- Heating degree days
- 0
- Cooling degree days
- 472
Lyons in July
Highs average 97°36° and lows 70°21°, with 1.9 in48 mm of precipitation in a typical July.
- Record high
- 108°42° (2022)
- Record low
- 55°13° (2019)
- Heating degree days
- 0
- Cooling degree days
- 574
Lyons in August
Highs average 98°37° and lows 70°21°, with 2.8 in71 mm of precipitation in a typical August.
- Record high
- 109°43° (2011)
- Record low
- 56°13° (1967)
- Heating degree days
- 0
- Cooling degree days
- 586
Lyons in September
Highs average 92°33° and lows 64°18°, with 3.4 in87 mm of precipitation in a typical September.
- Record high
- 114°46° (2000)
- Record low
- 42°6° (1989)
- Heating degree days
- 4
- Cooling degree days
- 396
Lyons in OctoberThis month
Highs average 83°29° and lows 53°12°, with 4.3 in110 mm of precipitation in a typical October.
- Record high
- 99°37° (2019)
- Record low
- 25°−4° (2019)
- Heating degree days
- 63
- Cooling degree days
- 164
Lyons in November
Highs average 72°22° and lows 44°7°, with 3.6 in90 mm of precipitation in a typical November.
- Record high
- 91°33° (2016)
- Record low
- 16°−9° (2010)
- Heating degree days
- 241
- Cooling degree days
- 39
Lyons in December
Highs average 64°18° and lows 37°3°, with 3.7 in93 mm of precipitation in a typical December.
- Record high
- 85°29° (1993)
- Record low
- 3°−16° (1989)
- Heating degree days
- 456
- Cooling degree days
- 9