Fort Smith weather by month
What a typical year looks like in Fort Smith, Arkansas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Fort Smith Regional Airport, 2 km from Fort Smith; records cover 1882–2026.
The year at a glance
- Precipitation a year
- 47.3 in1202 mm
- Snow a year
- 2.9 in7.4 cm
- Last spring freeze
- Mar 23
- First fall freeze
- Nov 4
- Heating degree days
- 3,096
- Cooling degree days
- 2,175
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 103°39° (cooling, 1%).
Month by month
Fort Smith in January
Highs average 51°11° and lows 30°−1°, with 2.9 in74 mm of precipitation and 1.4 in3.6 cm of snow in a typical January.
- Record high
- 81°27° (1952)
- Record low
- −11°−24° (1918)
- Heating degree days
- 761
- Cooling degree days
- 0
Fort Smith in February
Highs average 57°14° and lows 33°1°, with 2.7 in68 mm of precipitation and 0.6 in1.5 cm of snow in a typical February.
- Record high
- 88°31° (2017)
- Record low
- −15°−26° (1899)
- Heating degree days
- 561
- Cooling degree days
- 1
Fort Smith in March
Highs average 66°19° and lows 42°5°, with 3.9 in99 mm of precipitation and 0.3 in0.8 cm of snow in a typical March.
- Record high
- 95°35° (2026)
- Record low
- 7°−14° (1948)
- Heating degree days
- 369
- Cooling degree days
- 14
Fort Smith in April
Highs average 75°24° and lows 50°10°, with 4.9 in124 mm of precipitation in a typical April.
- Record high
- 96°36° (2006)
- Record low
- 22°−6° (1975)
- Heating degree days
- 142
- Cooling degree days
- 57
Fort Smith in May
Highs average 81°27° and lows 60°15°, with 5.6 in143 mm of precipitation in a typical May.
- Record high
- 99°37° (1934)
- Record low
- 34°1° (1903)
- Heating degree days
- 28
- Cooling degree days
- 196
Fort Smith in June
Highs average 89°32° and lows 68°20°, with 4.6 in116 mm of precipitation in a typical June.
- Record high
- 106°41° (1936)
- Record low
- 47°8° (1964)
- Heating degree days
- 0
- Cooling degree days
- 416
Fort Smith in July
Highs average 94°35° and lows 72°22°, with 3.4 in86 mm of precipitation in a typical July.
- Record high
- 111°44° (1954)
- Record low
- 50°10° (1972)
- Heating degree days
- 0
- Cooling degree days
- 561
Fort Smith in August
Highs average 94°34° and lows 71°22°, with 3.6 in91 mm of precipitation in a typical August.
- Record high
- 115°46° (2011)
- Record low
- 45°7° (1891)
- Heating degree days
- 0
- Cooling degree days
- 536
Fort Smith in September
Highs average 87°30° and lows 63°17°, with 4 in103 mm of precipitation in a typical September.
- Record high
- 109°43° (1998)
- Record low
- 33°1° (1967)
- Heating degree days
- 10
- Cooling degree days
- 304
Fort Smith in OctoberThis month
Highs average 76°24° and lows 51°11°, with 4.4 in112 mm of precipitation in a typical October.
- Record high
- 96°36° (1938)
- Record low
- 22°−6° (1917)
- Heating degree days
- 129
- Cooling degree days
- 81
Fort Smith in November
Highs average 63°17° and lows 40°4°, with 3.9 in98 mm of precipitation in a typical November.
- Record high
- 89°32° (2025)
- Record low
- 8°−13° (1976)
- Heating degree days
- 407
- Cooling degree days
- 8
Fort Smith in December
Highs average 53°12° and lows 32°0°, with 3.5 in88 mm of precipitation and 0.6 in1.5 cm of snow in a typical December.
- Record high
- 84°29° (2025)
- Record low
- −5°−21° (1989)
- Heating degree days
- 689
- Cooling degree days
- 1