Weather on April 20 at Great Sand Dunes
Great Sand Dunes National Park and Preserve
Based on 55 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
April 20th in Great Sand Dunes National Park (via Alamosa, CO) typically brings mild spring weather, with average highs around 60°F and lows near 25°F — a 35°F daily swing. Over 55 years of records, the warmest April 20th was in 2014 (55°F average), while the coldest was 1982 (24°F) — a 31°F range across recorded history. Precipitation has occurred on 13% of recorded April 20th dates, with snow falling 7% of the time (heaviest snowfall: 6.4"). 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 April 20th in Great Sand Dunes? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 36°F | 20°F | 0.53" | 2.1" |
| 2024 | 71°F | 30°F | 0" | 0" |
| 2023 | 59°F | 18°F | 0" | 0" |
| 2022 | 70°F | 36°F | 0" | 0" |
| 2021 | 58°F | 18°F | 0" | 0" |
| 2020 | 59°F | 22°F | 0" | 0" |
| 2019 | 74°F | 28°F | 0" | 0" |
| 2018 | 67°F | 26°F | 0" | 0" |
| 2017 | 71°F | 28°F | 0" | 0" |
| 2016 | 46°F | 24°F | 0" | 0" |
| 2015 | 57°F | 33°F | 0" | 0" |
| 2014 | 67°F | 43°F | 0" | 0" |
| 2013 | 57°F | 24°F | 0" | 0" |
| 2012 | 60°F | 24°F | 0" | -- |
| 2011 | 64°F | 28°F | 0" | -- |
| 2010 | 64°F | 31°F | 0" | 0" |
| 2009 | 60°F | 25°F | 0" | 0" |
| 2008 | 68°F | 27°F | 0" | 0" |
| 2007 | 59°F | 21°F | 0" | 0" |
| 2006 | 66°F | 17°F | 0" | 0" |
| 2005 | 65°F | 31°F | 0" | 0" |
| 2004 | 61°F | 22°F | 0" | 0" |
| 2003 | 57°F | 27°F | 0.03" | 0" |
| 2002 | 60°F | 23°F | 0" | 0" |
| 2001 | 61°F | 25°F | 0.05" | 0" |
| 2000 | 65°F | 17°F | 0" | 0" |
| 1999 | 70°F | 24°F | 0" | 0" |
| 1998 | 54°F | 23°F | 0" | 0" |
| 1997 | 67°F | 25°F | 0" | 0" |
| 1996 | 52°F | 15°F | 0" | 0" |
| 1995 | 48°F | 20°F | 0.03" | 0" |
| 1994 | 70°F | 37°F | 0" | 0" |
| 1993 | 58°F | 12°F | 0" | 0" |
| 1992 | 55°F | 23°F | 0" | 0" |
| 1991 | 68°F | 32°F | 0" | 0" |
| 1990 | 62°F | 27°F | 0" | 0" |
| 1989 | 80°F | 29°F | 0" | 0" |
| 1988 | 65°F | 29°F | 0" | 0" |
| 1987 | 51°F | 22°F | 0" | 0" |
| 1986 | 68°F | 27°F | 0" | 0" |
| 1985 | 57°F | 33°F | 0" | 0" |
| 1984 | 42°F | 25°F | 0.13" | 0.5" |
| 1983 | 65°F | 22°F | 0" | 0" |
| 1982 | 38°F | 11°F | 0.03" | 0.1" |
| 1981 | 66°F | 23°F | 0" | 0" |
| 1980 | 74°F | 28°F | 0" | 0" |
| 1979 | 61°F | 15°F | 0" | 0" |
| 1978 | 65°F | 22°F | 0" | 0" |
| 1977 | 49°F | 31°F | 1.42" | 6.4" |
| 1976 | 58°F | 26°F | 0" | 0" |
| 1975 | 60°F | 21°F | 0" | 0" |
| 1974 | 50°F | 27°F | 0" | 0" |
| 1973 | 45°F | 13°F | 0" | 0" |
| 1972 | 45°F | 19°F | 0" | 0" |
| 1971 | 51°F | 28°F | 0" | 0" |