Summit weather by month
What a typical year looks like in Summit, Arkansas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Mountain Home Baxter County Regional Airport, 23 km from Summit; records cover 1998–2026.
The year at a glance
- Precipitation a year
- 41.2 in1046 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 4
- First fall freeze
- Oct 29
- Heating degree days
- 3,813
- Cooling degree days
- 1,594
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 11°−12° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
Summit in January
Highs average 46°8° and lows 28°−2°, with 2.9 in73 mm of precipitation in a typical January.
- Record high
- 77°25° (1999)
- Record low
- −2°−19° (2018)
- Heating degree days
- 870
- Cooling degree days
- 0
Summit in February
Highs average 52°11° and lows 31°−1°, with 2.4 in60 mm of precipitation in a typical February.
- Record high
- 87°31° (2024)
- Record low
- −7°−22° (2021)
- Heating degree days
- 668
- Cooling degree days
- 2
Summit in March
Highs average 61°16° and lows 39°4°, with 3.6 in92 mm of precipitation in a typical March.
- Record high
- 96°36° (2026)
- Record low
- 5°−15° (2014)
- Heating degree days
- 479
- Cooling degree days
- 8
Summit in April
Highs average 71°22° and lows 48°9°, with 4.7 in119 mm of precipitation in a typical April.
- Record high
- 93°34° (2006)
- Record low
- 22°−6° (2007)
- Heating degree days
- 213
- Cooling degree days
- 39
Summit in May
Highs average 77°25° and lows 57°14°, with 4.5 in114 mm of precipitation in a typical May.
- Record high
- 96°36° (2012)
- Record low
- 34°1° (2005)
- Heating degree days
- 64
- Cooling degree days
- 126
Summit in June
Highs average 85°30° and lows 65°18°, with 3.5 in89 mm of precipitation in a typical June.
- Record high
- 109°43° (2012)
- Record low
- 49°9° (2003)
- Heating degree days
- 2
- Cooling degree days
- 307
Summit in July
Highs average 90°32° and lows 69°21°, with 3.6 in92 mm of precipitation in a typical July.
- Record high
- 107°42° (2012)
- Record low
- 53°12° (2014)
- Heating degree days
- 0
- Cooling degree days
- 446
Summit in August
Highs average 89°32° and lows 68°20°, with 3.4 in87 mm of precipitation in a typical August.
- Record high
- 114°46° (2011)
- Record low
- 49°9° (2004)
- Heating degree days
- 0
- Cooling degree days
- 416
Summit in September
Highs average 82°28° and lows 60°15°, with 2.7 in68 mm of precipitation in a typical September.
- Record high
- 102°39° (2000)
- Record low
- 40°4° (2000)
- Heating degree days
- 26
- Cooling degree days
- 199
Summit in OctoberThis month
Highs average 71°22° and lows 48°9°, with 3.4 in87 mm of precipitation in a typical October.
- Record high
- 91°33° (2026)
- Record low
- 25°−4° (2017)
- Heating degree days
- 208
- Cooling degree days
- 47
Summit in November
Highs average 59°15° and lows 38°3°, with 3.7 in93 mm of precipitation in a typical November.
- Record high
- 84°29° (2025)
- Record low
- 13°−11° (2019)
- Heating degree days
- 495
- Cooling degree days
- 3
Summit in December
Highs average 49°9° and lows 31°−1°, with 2.9 in73 mm of precipitation in a typical December.
- Record high
- 84°29° (2025)
- Record low
- −5°−21° (2022)
- Heating degree days
- 788
- Cooling degree days
- 1