March weather in Castlewood, SD
The average temperature in Castlewood in March is 28.3°F (17.8°F–38.7°F). Average precipitation: 1.12 inches.
March is a spring month in Castlewood, and is cooler than the annual average of 42.7°F. Daily temperatures swing about 20.9°F between overnight low and afternoon high. Daylight averages about 11h 41m. For travel, March is cold.
Avg High
38.7°F
Avg Low
17.8°F
Precipitation
1.12 in
Daylight
11h 41m
March records in Castlewood
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 53.1°F (2024) | -11.9°F (2014) | 0.04 in (2026) |
| March 2 | 60.1°F (2024) | -20.0°F (2014) | 0.28 in (2019) |
| March 3 | 57.9°F (2024) | -20.0°F (2019) | 0.01 in (2015) |
| March 4 | 53.1°F (2021) | -20.0°F (2019) | 0.12 in (2013) |
| March 5 | 54.0°F (2021) | -18.9°F (2015) | 0.26 in (2018) |
| March 6 | 66.0°F (2017) | -9.9°F (2015) | 0.57 in (2018) |
| March 7 | 61.0°F (2016) | 0.0°F (2019) | 0.36 in (2026) |
| March 8 | 62.1°F (2016) | 1.9°F (2019) | 0.04 in (2023) |
| March 9 | 64.9°F (2026) | 1.9°F (2017) | 0.25 in (2013) |
| March 10 | 66.0°F (2021) | 1.0°F (2022) | 0.32 in (2019) |
| March 11 | 73.0°F (2016) | -4.0°F (2019) | 0.57 in (2021) |
| March 12 | 73.0°F (2016) | -5.1°F (2019) | 0.09 in (2023) |
| March 13 | 70.0°F (2016) | -0.9°F (2013) | 0.41 in (2017) |
| March 14 | 72.0°F (2025) | 0.0°F (2013) | 1.36 in (2019) |
| March 15 | 72.0°F (2025) | 6.1°F (2023) | 0.61 in (2021) |
| March 16 | 75.0°F (2015) | -2.9°F (2026) | 0.14 in (2026) |
| March 17 | 77.0°F (2012) | -2.0°F (2026) | 0.11 in (2023) |
| March 18 | 75.0°F (2012) | 1.0°F (2023) | 0.01 in (2013) |
| March 19 | 82.0°F (2012) | -11.0°F (2013) | 0.21 in (2014) |
| March 20 | 71.1°F (2026) | -4.0°F (2013) | 0.17 in (2018) |
| March 21 | 66.9°F (2026) | -6.0°F (2013) | 0.07 in (2018) |
| March 22 | 73.9°F (2026) | -6.0°F (2013) | 0.10 in (2023) |
| March 23 | 57.9°F (2012) | 6.1°F (2014) | 0.29 in (2012) |
| March 24 | 66.9°F (2012) | 10.0°F (2023) | 0.57 in (2018) |
| March 25 | 73.0°F (2012) | 6.1°F (2014) | 0.23 in (2024) |
| March 26 | 75.0°F (2026) | 7.0°F (2013) | 0.60 in (2024) |
| March 27 | 57.0°F (2012) | 6.1°F (2024) | 0.11 in (2018) |
| March 28 | 61.0°F (2025) | 3.0°F (2024) | 0.29 in (2014) |
| March 29 | 69.1°F (2025) | 0.0°F (2023) | 0.23 in (2020) |
| March 30 | 78.1°F (2021) | -2.0°F (2023) | 1.11 in (2025) |
| March 31 | 73.0°F (2015) | 16.0°F (2018) | 0.13 in (2022) |