Weather on February 18
Sioux Falls, SD
55 Years of Data
Avg High
34°F
Avg Low
14°F
Warmest
1981
49°F avg
Coldest
2025
-11°F avg
About This Date
February 18th in Sioux Falls, SD typically brings cold winter weather, with average highs around 34°F and lows near 14°F. Over 56 years of records, the warmest February 18th was in 1981 (49°F average), while the coldest was 2025 (-11°F) — a 60°F range across recorded history. Precipitation has occurred on 21% of recorded February 18th dates, with snow falling 18% of the time (heaviest snowfall: 8.9"). The last decade has been 5.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.8°F cooler on this date compared to 20-30 years ago.
Planning for February 18th in Sioux Falls, SD? Bundle up with warm layers and protect extremities from the cold.
Cooling Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 50° | 20° | 35° | — | — |
| 2025coldest | -1° | -22° | -11° | — | — |
| 2024 | 42° | 21° | 32° | — | — |
| 2023 | 36° | 12° | 24° | — | — |
| 2022 | 48° | 10° | 29° | — | — |
| 2021 | 20° | -4° | 8° | — | — |
| 2020 | 25° | 10° | 18° | — | — |
| 2019 | 16° | -6° | 5° | — | — |
| 2018 | 44° | 19° | 32° | — | — |
| 2017 | 61° | 29° | 45° | — | — |
| 2016 | 41° | 32° | 37° | — | — |
| 2015 | 10° | -4° | 3° | — | — |
| 2014 | 44° | 15° | 30° | — | — |
| 2013 | 36° | 8° | 22° | — | — |
| 2012 | 41° | 10° | 26° | — | — |
| 2011 | 35° | 22° | 28° | — | — |
| 2010 | 29° | 8° | 18° | — | — |
| 2009 | 27° | 6° | 16° | — | — |
| 2008 | 11° | -3° | 4° | 0.03" | 0.2" |
| 2007 | 35° | 12° | 24° | — | — |
| 2006 | 9° | -11° | -1° | — | — |
| 2005 | 42° | 9° | 25° | — | — |
| 2004 | 42° | 23° | 33° | — | — |
| 2003 | 35° | 16° | 25° | — | — |
| 2002 | 51° | 35° | 43° | — | — |
| 2001 | 30° | 11° | 20° | — | — |
| 2000 | 28° | 19° | 24° | — | — |
| 1999 | 31° | 23° | 27° | 0.03" | 0.4" |
| 1998 | 35° | 32° | 34° | 0.61" | 2.3" |
| 1997 | 40° | 21° | 30° | — | — |
| 1996 | 42° | 14° | 28° | 0.03" | 0.2" |
| 1995 | 43° | 28° | 35° | — | — |
| 1994 | 53° | 38° | 45° | 0.05" | — |
| 1993 | 15° | -9° | 3° | — | — |
| 1992 | 36° | 30° | 33° | 0.46" | 1.8" |
| 1991 | 31° | 21° | 26° | 0.53" | 3" |
| 1990 | 26° | 11° | 18° | — | — |
| 1989 | 8° | -12° | -2° | 0.23" | 1.9" |
| 1988 | 38° | 20° | 29° | — | — |
| 1987 | 40° | 8° | 24° | — | — |
| 1986 | 31° | 12° | 21° | — | — |
| 1985 | 35° | 20° | 27° | — | — |
| 1984 | 33° | 28° | 31° | 1.55" | 8.9" |
| 1983 | 41° | 30° | 36° | — | — |
| 1982 | 46° | 28° | 37° | — | — |
| 1981warmest | 62° | 35° | 49° | — | — |
| 1980 | 38° | 19° | 28° | — | — |
| 1979 | 14° | 5° | 10° | 0.13" | 1.3" |
| 1978 | 15° | -13° | 1° | — | — |
| 1977 | 44° | 22° | 33° | — | — |
| 1976 | 35° | 26° | 31° | 0.03" | 0.3" |
| 1975 | 23° | 5° | 14° | — | — |
| 1974 | 43° | 25° | 34° | — | — |
| 1973 | 31° | 10° | 20° | — | — |
| 1972 | 25° | 0° | 12° | — | — |
| 1971 | 37° | 32° | 35° | 1.37" | — |
56 years of data from SIOUX FALLS