Weather on January 21 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
January 21st in Great Sand Dunes National Park (via Alamosa, CO) typically brings cold winter weather, with average highs around 34°F and lows near -1°F — a 35°F daily swing. Over 56 years of records, the warmest January 21st was in 1971 (34°F average), while the coldest was 1984 (-12°F) — a 46°F range across recorded history. Precipitation has occurred on 11% of recorded January 21st dates, with snow falling 14% of the time (heaviest snowfall: 1.5"). 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 January 21st in Great Sand Dunes? Bundle up with warm layers and protect extremities from the cold.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 44°F | 3°F | 0" | 0" |
| 2025 | 23°F | -12°F | 0" | 0" |
| 2024 | 42°F | 14°F | 0" | 0" |
| 2023 | 23°F | -4°F | 0.1" | 0.4" |
| 2022 | 42°F | 6°F | 0" | 0" |
| 2021 | 33°F | 2°F | 0" | 0" |
| 2020 | 35°F | -2°F | 0" | 0" |
| 2019 | 31°F | -9°F | 0" | 0" |
| 2018 | 53°F | 13°F | 0" | 0" |
| 2017 | 37°F | 11°F | 0" | 0.2" |
| 2016 | 37°F | -1°F | 0" | 0.3" |
| 2015 | 43°F | 11°F | 0" | 0" |
| 2014 | 33°F | -8°F | 0" | 0" |
| 2013 | 30°F | -18°F | 0" | 0" |
| 2012 | 53°F | 6°F | 0" | -- |
| 2011 | 33°F | -2°F | 0" | -- |
| 2010 | 40°F | 6°F | 0" | 0" |
| 2009 | 43°F | -6°F | 0" | 0" |
| 2008 | 21°F | -21°F | 0" | 0" |
| 2007 | 24°F | 3°F | 0" | 0" |
| 2006 | 29°F | -14°F | 0.03" | 0.2" |
| 2005 | 47°F | 10°F | 0" | 0" |
| 2004 | 30°F | 8°F | 0" | 0" |
| 2003 | 47°F | 3°F | 0" | 0" |
| 2002 | 36°F | -5°F | 0" | 0" |
| 2001 | 28°F | -13°F | 0" | 0" |
| 2000 | 51°F | 12°F | 0" | 0" |
| 1999 | 34°F | 10°F | 0.05" | 0.2" |
| 1998 | 26°F | -3°F | 0" | 0" |
| 1997 | 36°F | 1°F | 0" | 0" |
| 1996 | 41°F | -7°F | 0" | 0" |
| 1995 | 34°F | 14°F | 0" | 0" |
| 1994 | 49°F | 1°F | 0" | 0" |
| 1993 | 27°F | -8°F | -- | 0" |
| 1992 | 14°F | -23°F | 0" | 0" |
| 1991 | 22°F | -8°F | 0.1" | 0.4" |
| 1990 | 22°F | -18°F | 0" | 0" |
| 1989 | 43°F | -6°F | 0" | 0" |
| 1988 | 12°F | -27°F | 0" | 0" |
| 1987 | 20°F | -23°F | 0" | 0" |
| 1986 | 40°F | 15°F | 0" | 0" |
| 1985 | 24°F | 15°F | 0" | 0" |
| 1984 | 10°F | -34°F | 0" | 0" |
| 1983 | 35°F | 7°F | 0" | 0" |
| 1982 | 39°F | 10°F | 0" | 0" |
| 1981 | 50°F | -3°F | 0" | 0" |
| 1980 | 32°F | 3°F | 0" | 0" |
| 1979 | 29°F | -15°F | 0" | 0" |
| 1978 | 35°F | 11°F | 0.05" | 0.4" |
| 1977 | 39°F | 10°F | 0" | 0" |
| 1976 | 36°F | -4°F | 0" | 0" |
| 1975 | 19°F | -14°F | 0.2" | 1.5" |
| 1974 | 42°F | 13°F | 0" | 0" |
| 1973 | 28°F | -10°F | 0" | 0" |
| 1972 | 38°F | 8°F | 0" | 0" |
| 1971 | 50°F | 18°F | 0" | 0" |