Weather on June 21
Alamosa, CO
55 Years of Data
Avg High
82°F
Avg Low
43°F
Warmest
2016
72°F avg
Coldest
2009
53°F avg
About This Date
June 21st in Alamosa, CO typically brings warm summer weather, with average highs around 82°F and lows near 43°F — a 39°F daily swing. Over 55 years of records, the warmest June 21st was in 2016 (72°F average), while the coldest was 2009 (53°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 15% of June 21st dates historically, with the wettest June 21st recording 1.04" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for June 21st in Alamosa, CO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 46° | 67° | — | — |
| 2024 | 79° | 50° | 64° | 1.04" | — |
| 2023 | 80° | 37° | 59° | — | — |
| 2022 | 76° | 40° | 58° | — | — |
| 2021 | 87° | 48° | 68° | — | — |
| 2020 | 81° | 39° | 60° | — | — |
| 2019 | 80° | 48° | 64° | — | — |
| 2018 | 84° | 43° | 63° | — | — |
| 2017 | 89° | 53° | 71° | — | — |
| 2016warmest | 91° | 53° | 72° | — | — |
| 2015 | 88° | 47° | 67° | — | — |
| 2014 | 85° | 46° | 65° | — | — |
| 2013 | 83° | 38° | 60° | — | — |
| 2012 | 91° | 48° | 70° | — | — |
| 2011 | 72° | 35° | 53° | — | — |
| 2010 | 84° | 38° | 61° | — | — |
| 2009coldest | 64° | 43° | 53° | 0.03" | — |
| 2008 | 80° | 45° | 62° | — | — |
| 2007 | 85° | 42° | 63° | — | — |
| 2006 | 85° | 37° | 61° | — | — |
| 2005 | 86° | 51° | 69° | — | — |
| 2004 | 82° | 35° | 59° | — | — |
| 2003 | 78° | 35° | 57° | — | — |
| 2002 | 86° | 50° | 68° | 0.03" | — |
| 2001 | 83° | 49° | 66° | — | — |
| 2000 | 81° | 38° | 59° | — | — |
| 1999 | 72° | 44° | 58° | — | — |
| 1998 | 81° | 43° | 62° | — | — |
| 1997 | 83° | 40° | 61° | — | — |
| 1996 | 79° | 47° | 63° | 0.58" | — |
| 1995 | 79° | 46° | 62° | — | — |
| 1994 | 76° | 51° | 63° | — | — |
| 1993 | 74° | 43° | 58° | 0.18" | — |
| 1992 | 79° | 48° | 63° | 0.03" | — |
| 1991 | 83° | 35° | 59° | — | — |
| 1990 | 87° | 40° | 63° | — | — |
| 1989 | 80° | 47° | 63° | — | — |
| 1988 | 90° | 43° | 66° | — | — |
| 1987 | 81° | 41° | 61° | — | — |
| 1986 | 84° | 42° | 63° | — | — |
| 1985 | 81° | 48° | 64° | 0.08" | — |
| 1984 | 80° | 41° | 61° | — | — |
| 1983 | 85° | 44° | 64° | — | — |
| 1982 | 74° | 34° | 54° | — | — |
| 1981 | 90° | 41° | 65° | — | — |
| 1980 | 83° | 49° | 66° | — | — |
| 1979 | 83° | 34° | 58° | — | — |
| 1978 | 88° | 37° | 62° | — | — |
| 1977 | 77° | 35° | 56° | — | — |
| 1976 | 84° | 47° | 65° | 0.05" | — |
| 1975 | 71° | 44° | 58° | — | — |
| 1974 | 87° | 47° | 67° | — | — |
| 1973 | 77° | 43° | 60° | — | — |
| 1972 | 79° | 52° | 65° | — | — |
| 1971 | 84° | 46° | 65° | — | — |
55 years of data from ALAMOSA 1E