Weather on March 31 at Great Sand Dunes
Great Sand Dunes National Park and Preserve
Based on 56 years of data from Alamosa, CO
Elevation Note: Great Sand Dunes sits at 8,200 ft. Expect temperatures 29°F cooler than the data shown below, which comes from Alamosa, CO at a lower elevation.
Planning Your Visit
March 31st in Great Sand Dunes National Park (via Alamosa, CO) typically brings cool spring weather, with average highs around 54°F and lows near 19°F — a 35°F daily swing. Over 56 years of records, the warmest March 31st was in 1978 (51°F average), while the coldest was 1985 (21°F) — a 30°F range across recorded history. Precipitation has occurred on 14% of recorded March 31st dates, with snow falling 11% of the time (heaviest snowfall: 3"). Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 31st in Great Sand Dunes? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 66°F | 34°F | 0" | 0" |
| 2025 | 54°F | 13°F | 0" | 0" |
| 2024 | 61°F | 30°F | 0" | 0" |
| 2023 | 55°F | 13°F | 0" | 0" |
| 2022 | 52°F | 17°F | 0" | 0" |
| 2021 | 53°F | 11°F | 0" | 0" |
| 2020 | 53°F | 13°F | 0" | 0" |
| 2019 | 47°F | 19°F | 0" | 0" |
| 2018 | 62°F | 18°F | 0" | 0" |
| 2017 | 60°F | 34°F | 0" | 0" |
| 2016 | 40°F | 15°F | 0" | 0" |
| 2015 | 67°F | 28°F | 0" | 0" |
| 2014 | 61°F | 22°F | 0" | 0" |
| 2013 | 63°F | 24°F | 0" | 0" |
| 2012 | 68°F | 22°F | 0" | -- |
| 2011 | 60°F | 24°F | 0" | -- |
| 2010 | 67°F | 27°F | 0" | 0" |
| 2009 | 35°F | 8°F | 0.08" | 0.5" |
| 2008 | 59°F | 29°F | 0" | 0" |
| 2007 | 48°F | 18°F | 0" | 0" |
| 2006 | 63°F | 15°F | 0" | 0" |
| 2005 | 41°F | 18°F | 0.03" | 0.1" |
| 2004 | 68°F | 19°F | 0" | 0" |
| 2003 | 63°F | 13°F | 0" | 0" |
| 2002 | 69°F | 21°F | 0" | 0" |
| 2001 | 60°F | 17°F | 0" | 0" |
| 2000 | 33°F | 24°F | 0.51" | 3" |
| 1999 | 60°F | 34°F | 0" | 0" |
| 1998 | 46°F | 15°F | 0" | 0" |
| 1997 | 59°F | 20°F | 0" | 0" |
| 1996 | 58°F | 11°F | 0" | 0" |
| 1995 | 42°F | 11°F | 0" | 0" |
| 1994 | 56°F | 13°F | 0" | 0" |
| 1993 | 51°F | 19°F | 0" | 0" |
| 1992 | 45°F | 28°F | 0.46" | 1.6" |
| 1991 | 59°F | 15°F | 0" | 0" |
| 1990 | 53°F | 27°F | 0" | 0" |
| 1989 | 63°F | 10°F | 0" | 0" |
| 1988 | 32°F | 23°F | 0.15" | 0.6" |
| 1987 | 54°F | 14°F | 0" | 0" |
| 1986 | 66°F | 25°F | 0.05" | 0" |
| 1985 | 40°F | 3°F | 0" | 0" |
| 1984 | 47°F | 17°F | 0" | 0" |
| 1983 | 60°F | 27°F | 0.03" | 0" |
| 1982 | 56°F | 8°F | 0" | 0" |
| 1981 | 52°F | 8°F | 0" | 0" |
| 1980 | 42°F | 15°F | 0" | 0" |
| 1979 | 45°F | 27°F | 0.1" | 0.4" |
| 1978 | 72°F | 30°F | 0" | 0" |
| 1977 | 51°F | 29°F | 0" | 0" |
| 1976 | 55°F | 14°F | 0" | 0" |
| 1975 | 51°F | 12°F | 0" | 0" |
| 1974 | 52°F | 26°F | 0" | 0" |
| 1973 | 46°F | 15°F | 0" | 0" |
| 1972 | 44°F | 7°F | 0" | 0" |
| 1971 | 61°F | 23°F | 0" | 0" |