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Sioux Falls, SD Weather on April 9
April 9th in Sioux Falls, SD typically brings cool spring weather, with average highs around 55°F and lows near 31°F. Over 55 years of records, the warmest April 9th was in 1977 (67°F average), while the coldest was 1997 (20°F) — a 47°F range across recorded history. Precipitation has occurred on 27% of recorded April 9th dates, with snow falling 7% of the time (heaviest snowfall: 5.9"). The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
What to Expect on April 9
Planning for April 9th in Sioux Falls, SD? Bring layers as temperatures can vary throughout the day.
April 9 Weather Records for Sioux Falls
- •The all-time record high for April 9th in Sioux Falls, SD is 88°F, set in 1977.
- •The coldest April 9th on record dropped to 10°F in 1997.
- •A freeze (32°F or below) has occurred on April 9th in 30 of the last 55 years.
- •Last year (1971), April 9th was 9°F warmer than the long-term average.
Frequently Asked Questions
What was the warmest April 9 ever in Sioux Falls?
The warmest April 9 in Sioux Falls, SD reached 88°F in 1977. That is 33°F above the long-term average high of 55°F.
What was the coldest April 9 ever in Sioux Falls?
The coldest April 9 in Sioux Falls, SD dropped to 10°F in 1997. That is 21°F below the long-term average low of 31°F.
What is the average temperature on April 9 in Sioux Falls?
On April 9, Sioux Falls averages a high of 55°F and a low of 31°F based on 55 years of NOAA weather observations from SIOUX FALLS.
How many years of weather data are available for April 9 in Sioux Falls?
We have 55 years of weather records for April 9 in Sioux Falls, SD, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 9 Weather History in Sioux Falls
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 73°F | 35°F | 0" | -- |
| 2024 | 67°F | 36°F | 0" | -- |
| 2023 | 65°F | 36°F | 0.1" | -- |
| 2022 | 62°F | 23°F | 0" | -- |
| 2021 | 54°F | 40°F | 0.28" | -- |
| 2020 | 41°F | 22°F | 0" | -- |
| 2019 | 59°F | 36°F | 0.13" | -- |
| 2018 | 37°F | 27°F | 0" | -- |
| 2017 | 65°F | 47°F | 0.03" | -- |
| 2016 | 53°F | 19°F | 0" | -- |
| 2015 | 51°F | 38°F | 0.51" | -- |
| 2014 | 81°F | 38°F | 0" | -- |
| 2013 | 35°F | 23°F | 3.61" | 1.2" |
| 2012 | 54°F | 29°F | 0" | -- |
| 2011 | 61°F | 48°F | 0.05" | -- |
| 2010 | 64°F | 35°F | 0" | -- |
| 2009 | 49°F | 27°F | 0" | -- |
| 2008 | 50°F | 21°F | 0" | -- |
| 2007 | 49°F | 16°F | 0" | -- |
| 2006 | 67°F | 38°F | 0" | -- |
| 2005 | 78°F | 54°F | 0" | -- |
| 2004 | 43°F | 28°F | 0.05" | -- |
| 2003 | 49°F | 25°F | 0" | -- |
| 2002 | 64°F | 21°F | 0" | -- |
| 2001 | 63°F | 33°F | 0" | -- |
| 2000 | 50°F | 28°F | 0" | -- |
| 1999 | 58°F | 40°F | 0.08" | -- |
| 1998 | 54°F | 34°F | 0" | -- |
| 1997 | 31°F | 10°F | 0.15" | 1" |
| 1996 | 57°F | 20°F | 0" | -- |
| 1995 | 36°F | 27°F | 1.45" | 5.9" |
| 1994 | 58°F | 31°F | 0" | -- |
| 1993 | 56°F | 30°F | 0" | -- |
| 1992 | 54°F | 30°F | 0" | -- |
| 1991 | 54°F | 32°F | 0" | -- |
| 1990 | 60°F | 40°F | 0" | -- |
| 1989 | 37°F | 16°F | 0" | -- |
| 1988 | 55°F | 31°F | 0.15" | -- |
| 1987 | 60°F | 36°F | 0" | -- |
| 1986 | 61°F | 26°F | 0" | -- |
| 1985 | 64°F | 25°F | 0" | -- |
| 1984 | 45°F | 38°F | 0" | -- |
| 1983 | 43°F | 34°F | 0.15" | 0.1" |
| 1982 | 41°F | 25°F | 0" | -- |
| 1981 | 69°F | 33°F | 0" | -- |
| 1980 | 53°F | 34°F | 0" | -- |
| 1979 | 43°F | 27°F | 0" | -- |
| 1978 | 51°F | 41°F | 0.69" | -- |
| 1977 | 88°F | 46°F | 0" | -- |
| 1976 | 70°F | 43°F | 0" | -- |
| 1975 | 36°F | 32°F | 0.05" | -- |
| 1974 | 66°F | 27°F | 0" | -- |
| 1973 | 36°F | 27°F | 0" | -- |
| 1972 | 66°F | 33°F | 0" | -- |
| 1971 | 64°F | 28°F | 0" | -- |
Based on 55 years of data from NOAA station: SIOUX FALLS
Monthly Climate Averages
Historical temperature and precipitation averages for Sioux Falls, SD, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.