Lamar weather by month
What a typical year looks like in Lamar, Arkansas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Clarksville 6 NE, 10 km from Lamar; records cover 1986–2026.
The year at a glance
- Precipitation a year
- 52.8 in1341 mm
- Snow a year
- 2.3 in5.8 cm
- Last spring freeze
- Mar 25
- First fall freeze
- Nov 10
- Heating degree days
- 3,576
- Cooling degree days
- 1,753
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 13°−11° (heating, 99%) and 100°38° (cooling, 1%).
Month by month
Lamar in January
Highs average 47°8° and lows 29°−2°, with 3.7 in94 mm of precipitation and 0.9 in2.3 cm of snow in a typical January.
- Record high
- 77°25° (2008)
- Record low
- −8°−22° (2024)
- Heating degree days
- 840
- Cooling degree days
- 0
Lamar in February
Highs average 52°11° and lows 33°0°, with 3.4 in85 mm of precipitation and 0.6 in1.5 cm of snow in a typical February.
- Record high
- 81°27° (2017)
- Record low
- −15°−26° (2021)
- Heating degree days
- 639
- Cooling degree days
- 1
Lamar in March
Highs average 60°16° and lows 40°5°, with 4.9 in124 mm of precipitation and 0.6 in1.5 cm of snow in a typical March.
- Record high
- 91°33° (2026)
- Record low
- 8°−13° (2002)
- Heating degree days
- 462
- Cooling degree days
- 5
Lamar in April
Highs average 70°21° and lows 49°10°, with 5.3 in135 mm of precipitation in a typical April.
- Record high
- 93°34° (2006)
- Record low
- 25°−4° (2007)
- Heating degree days
- 201
- Cooling degree days
- 33
Lamar in May
Highs average 77°25° and lows 59°15°, with 5.8 in148 mm of precipitation in a typical May.
- Record high
- 92°33° (2006)
- Record low
- 35°2° (2013)
- Heating degree days
- 50
- Cooling degree days
- 136
Lamar in June
Highs average 85°30° and lows 67°19°, with 4 in101 mm of precipitation in a typical June.
- Record high
- 106°41° (2012)
- Record low
- 44°7° (2006)
- Heating degree days
- 1
- Cooling degree days
- 331
Lamar in July
Highs average 90°32° and lows 71°22°, with 4.2 in107 mm of precipitation in a typical July.
- Record high
- 104°40° (2006)
- Record low
- 46°8° (2006)
- Heating degree days
- 0
- Cooling degree days
- 474
Lamar in August
Highs average 90°32° and lows 70°21°, with 3.8 in97 mm of precipitation in a typical August.
- Record high
- 110°43° (2011)
- Record low
- 55°13° (2004)
- Heating degree days
- 0
- Cooling degree days
- 465
Lamar in September
Highs average 83°28° and lows 63°17°, with 4.2 in106 mm of precipitation in a typical September.
- Record high
- 100°38° (2012)
- Record low
- 42°6° (2006)
- Heating degree days
- 14
- Cooling degree days
- 244
Lamar in OctoberThis month
Highs average 72°22° and lows 52°11°, with 4.5 in113 mm of precipitation in a typical October.
- Record high
- 97°36° (2024)
- Record low
- 27°−3° (2023)
- Heating degree days
- 165
- Cooling degree days
- 60
Lamar in November
Highs average 59°15° and lows 41°5°, with 5 in128 mm of precipitation in a typical November.
- Record high
- 85°29° (2016)
- Record low
- 13°−11° (2019)
- Heating degree days
- 457
- Cooling degree days
- 4
Lamar in December
Highs average 49°10° and lows 33°0°, with 4 in102 mm of precipitation and 0.2 in0.5 cm of snow in a typical December.
- Record high
- 77°25° (2025)
- Record low
- −9°−23° (2022)
- Heating degree days
- 747
- Cooling degree days
- 0