Weather on September 10 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
September 10th in Great Sand Dunes National Park (via Alamosa, CO) typically brings pleasant fall weather, with average highs around 75°F and lows near 40°F — a 35°F daily swing. Over 55 years of records, the warmest September 10th was in 2005 (64°F average), while the coldest was 2020 (35°F) — a 29°F range across recorded history. Precipitation has occurred on 29% of recorded September 10th dates, with snow falling 2% 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 September 10th in Great Sand Dunes? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 81°F | 40°F | 0" | 0" |
| 2024 | 78°F | 38°F | 0" | 0" |
| 2023 | 84°F | 36°F | 0" | 0" |
| 2022 | 83°F | 44°F | 0" | 0" |
| 2021 | 89°F | 39°F | 0" | 0" |
| 2020 | 43°F | 27°F | 0.43" | 1.5" |
| 2019 | 78°F | 37°F | 0" | 0" |
| 2018 | 79°F | 37°F | 0" | 0" |
| 2017 | 80°F | 43°F | 0" | 0" |
| 2016 | 83°F | 36°F | 0" | 0" |
| 2015 | 81°F | 38°F | 0" | 0" |
| 2014 | 76°F | 39°F | 0" | 0" |
| 2013 | 81°F | 48°F | 0" | 0" |
| 2012 | 75°F | 40°F | 0" | 0" |
| 2011 | 69°F | 39°F | 0" | -- |
| 2010 | 72°F | 37°F | 0" | 0" |
| 2009 | 78°F | 36°F | 0.15" | 0" |
| 2008 | 75°F | 38°F | 0.36" | 0" |
| 2007 | 70°F | 46°F | 0.48" | 0" |
| 2006 | 70°F | 34°F | 0" | 0" |
| 2005 | 79°F | 49°F | 0.48" | 0" |
| 2004 | 78°F | 39°F | 0" | 0" |
| 2003 | 64°F | 37°F | 0.03" | 0" |
| 2002 | 61°F | 49°F | 0.99" | 0" |
| 2001 | 79°F | 28°F | 0" | 0" |
| 2000 | 80°F | 32°F | 0" | 0" |
| 1999 | 76°F | 49°F | 0.13" | 0" |
| 1998 | 76°F | 45°F | 0" | 0" |
| 1997 | 76°F | 38°F | 0.23" | 0" |
| 1996 | 77°F | 40°F | 0" | 0" |
| 1995 | 67°F | 42°F | 0.36" | 0" |
| 1994 | 81°F | 41°F | 0" | 0" |
| 1993 | 77°F | 43°F | 0.23" | 0" |
| 1992 | 79°F | 35°F | 0" | 0" |
| 1991 | 69°F | 49°F | 0" | 0" |
| 1990 | 80°F | 38°F | 0" | 0" |
| 1989 | 71°F | 34°F | 0" | 0" |
| 1988 | 81°F | 42°F | 0" | 0" |
| 1987 | 75°F | 28°F | 0" | 0" |
| 1986 | 55°F | 33°F | 0.94" | 0" |
| 1985 | 75°F | 40°F | 0" | 0" |
| 1984 | 81°F | 37°F | 0" | 0" |
| 1983 | 82°F | 41°F | 0.18" | 0" |
| 1982 | 75°F | 42°F | 0" | 0" |
| 1981 | 73°F | 40°F | 0" | 0" |
| 1980 | 67°F | 46°F | 0.61" | 0" |
| 1979 | 84°F | 43°F | 0" | 0" |
| 1978 | 80°F | 36°F | 0" | 0" |
| 1977 | 75°F | 43°F | 0.2" | 0" |
| 1976 | 68°F | 48°F | 0" | 0" |
| 1975 | 75°F | 43°F | 0" | 0" |
| 1974 | 83°F | 36°F | 0" | 0" |
| 1973 | 67°F | 45°F | 1.8" | 0" |
| 1972 | 73°F | 45°F | 0" | 0" |
| 1971 | 82°F | 34°F | 0" | 0" |