National Weather Service United States Department of Commerce

Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Tulsa, OK

Weather Forecast Office

Fort Smith Climate

Weather.gov > Tulsa, OK > Fort Smith Climate

Fort Smith, Arkansas Climatology

 

Fort Smith, AR   Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average High Temperature   51.3 56.6 65.6 74.5 81.4 89.4 94.1 93.7 86.5 75.9 63.4 53.3 73.8
Average Low Temperature   29.6 33.4 41.5 49.8 59.5 68.3 72.1 70.9 63.1 51.0 40.0 32.3 50.9
Average Mean Temperature   40.4 45.0 53.5 62.1 70.4 78.8 83.1 82.3 74.8 63.5 51.7 42.8 62.4
Record High Temperature   81 1952 88 2017 95 2026 96 2006 99 1934 106 2012, 1936 111 1954 115 2011

109 2000, 1998

 96 2015, 1963, 1956, 1953, 1938 87 2017, 2016 84 2025 115 Aug 2011
Record Low Temperature   -11 1918 -15 1899 7 1948 22 1975 34 1903 47 1972, 1964 50 1972 45 1891 33 1967 22 1952, 1917 8 1976 -5 1989 -15 Feb 1899
Average Days At or Above 100 Degrees   0 0 0 0 0 0.3 3.0 4.8 0.6 0 0 0 8.7
Average Days At or Above 90 Degrees   0 0 0 0.5 2.2 11.9 22.8 21.9 9.0 0.6 0 0 68.9
Average Days At or Below 32 Degrees   20.5 12.7 4.8 0.6 0 0 0 0 0 0.4 6.4 17.4 62.8
Average Rainfall   2.91 2.69 3.90 4.87 5.63 4.56 3.39 3.60 4.04 4.42 3.85 3.48 47.34
Record Rainfall   11.33 1949 10.72 1884 13.03 1945 10.32 1957 19.85 2015 15.02 1945 14.99 1895 11.70 2019 10.49 1934 12.05 1951 14.01 1946 10.81 2015 73.93 2015
* Record Rainfall in 24 Hours   5.63 4.45 4.88 5.12 5.56 5.41 7.13 5.09 5.20 5.90 6.91 5.78 7.13
Record Least Rainfall   0.20 1986, 1943, 1936 0.14 1947 0.50 2007 0.36 1903 0.38 1886 0.38 1954 0.07 2001 T 2000

T 2017

 T 1964 0.26 1904 0.07 2025 19.80 1917
Average Number of Rain Days   7.5 7.8 9.7 9.1 10.7 9.3 6.5 6.3 7.7 8.4 7.5 7.7 98.2
**Average Number of Thunderstorm Days   1 2 5 7 8 8 7 7 5 3 3 2 57
Average Snowfall   1.4 0.6 0.3 0 0 0 0 0 0 0 0 0.6 2.9
Record Snowfall   13.6 1918 18.3 1921 7.5 2010 0.7 1933 0 0 0 0 0 T 1993 4.7 1976 8.3 1916 22.6 1921
Measurable Snowfall:   Latest / April 15 (0.7" in 1933) Earliest / November 2 (2.0" in 1951)
Trace of Snowfall:   Latest / April 24 (in 1910) Earliest / October 29 (in 1993)
**Average Sunshine (%)   49 55 56 61 62 69 73 72 66 65 55 50 61
**Average Wind Speed (mph)   8.4 8.6 9.5 9.1 7.7 6.8 6.4 6.3 6.6 6.9 7.9 8.2 7.7
Average Heating Degree Days   792 582 386 156 27 1 0 0 17 137 411 734 3244
Average Cooling Degree Days   0 1 11 54 178 385 536 530 283 68 8 1 2053
Average Date Of 32 Degrees***:   Last: March 22 First: November 9
Freezing Temperature:   Latest Recorded: April 21 Earliest Recorded: October 8
Station Information   Elevation: 447 ft / Latitude: 35 20N / Longitude: 94 22W

Temperatures are reported in Fahrenheit and rainfall/snowfall totals are reported in inches.
Rain day is defined as a day with 0.01 inches or more of rain.
Temperature and rainfall records are for the period June 1882-Present.
Snowfall records are for the period October 1883-Present.
*Record Rainfall in 24 Hours for the period 1944-Present.
**Averages are for the period 1961-1990.
***Averages are for the period 1971-2000.
All other averages are for the period 1991-2020.
(Annual totals may be slightly different than monthly totals due to rounding)

 

Updated:  August 30, 2026

 

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