National Weather Service United States Department of Commerce
Alamosa, CO
1932 - Present

Records (degrees F or inches) and years in which they occurred.
+ indicates last of multiple occurrences.

Values outlined in red are monthly extremes.




Date Maximum Minimum Lowest Max Highest Min Precip Snowfall
May 01 78/2001 11/1967 34/2011 42/1992+ 0.50/1990 3.1/1999
May 02 81/1943 13/2008 35/1978 44/1950 0.44/1978 4.4/1978
May 03 79/1943 11/2011 36/1935 44/1981 0.75/1935 8.0/1935
May 04 81/1943 13/1935 42/1935 46/1985 0.51/2001 3.5/2001
May 05 80/2000+ 17/1991 37/1978 43/1956+ 0.58/1978 7.1/1978
May 06 80/2009 17/1991+ 41/1978 49/1939 0.71/1973 8.4/1973
May 07 81/2009+ 13/1975 40/1938 45/2000+ 0.64/2012 1.0/1938
May 08 82/1989 16/1984 48/1965 46/1934 0.56/1957 0.2/1986
May 09 80/2018 13/1950 45/1979 52/1963 0.71/1994 0.7/1952
May 10 82/2018 17/1948 49/1979 43/1989 0.70/2017 1.0/1992
May 11 80/1984 14/2003 46/1953 42/2018+ 0.31/1947 0.3/2017
May 12 82/1984 17/1953 44/1953 45/1956+ 0.33/1965 0.7/1982
May 13 84/1996 18/1933 43/1961 45/1974 0.29/1973 1.7/1953
May 14 82/1978 17/2014+ 42/1907 45/2006+ 0.40/1987 1.2/1967
May 15 82/1996+ 19/1998+ 45/1957 47/2003+ 0.52/1980 0.3/1980
May 16 83/1996 23/1951+ 47/1953 43/1974+ 0.58/1953 1.2/1953
May 17 82/2003 20/1943 44/1952 50/1964 0.51/1952 4.7/1952
May 18 85/1970 21/2000+ 40/1971 44/1948 1.16/1935 7.1/1971
May 19 82/2008 17/1971 46/1960 49/1996 0.89/2015 T/2017+
May 20 87/2005 20/1960 46/1935 47/1992 0.34/1941 0.3/1957
May 21 89/2005 20/1974 52/1957 49/2008 0.54/2009 T/1959
May 22 87/2005 22/1974 49/1957 48/1932 0.27/2009 T/1957
May 23 87/2005 23/1975+ 51/2007+ 48/2009+ 0.26/2007 0.3/1971
May 24 85/2005 22/1975 52/2015+ 51/1984 0.84/1959  
May 25 84/2006 21/2010 50/1965+ 48/1964 0.61/1961 T/1965
May 26 84/1969+ 24/1907 50/1907 48/1993 0.86/1967 0.1/1965
May 27 84/2010+ 25/1996+ 53/1907 48/1993 0.68/1970 T/1992
May 28 86/2000 21/2012 51/1907 49/2001 0.44/1934 T/1962
May 29 89/2000 24/1996 50/1995 50/2011+ 0.34/1937 T/1990
May 30 88/2000 22/1946 52/1907 48/1961 0.39/1983  
May 31 90/2002 24/2011+ 53/1983 50/1955+ 0.33/1992 T/1970