Alamosa, CO: records

4 October 2026: The hottest day on record in Alamosa, CO: 96°F on Wednesday 5 July 1989.

The record begins: 1906

All-time records

Hottest day: 96°F; 5 July 1989
Coldest night: -50°F; 28 January 1948
Wettest day: 1.77 in; 30 September 1959
Warmest night: 60°F; 15 July 1934
Coldest day: 0°F; 7 December 1964

Daily records by decade

New daily records set in Alamosa, CO by decade since the 1960s: the most record highs, 109, came in the 2020s; the most record lows, 87, in the 1960s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1900s	0	0	4
1910s	0	0	10
1920s	0	0	10
1930s	0	0	10
1940s	0	0	10
1950s	0	0	10
1960s	57	87	10
1970s	57	83	10
1980s	95	53	10
1990s	44	41	10
2000s	90	32	10
2010s	86	21	10
2020s	109	9	7

Records by month

Month	Highest	Lowest	Wettest day
January	63°F 31 January 2018	-50°F 28 January 1948	0.60 in 11 January 2019
February	67°F 3 February 2025	-35°F 13 February 1948	0.88 in 10 February 1963
March	83°F 21 March 2026	-20°F 4 March 1964	1.15 in 4 March 1992
April	80°F 20 April 1989	-6°F 8 April 1973	1.45 in 15 April 1938
May	90°F 31 May 2002	11°F 3 May 2011, 1 May 1967	1.16 in 18 May 1935
June	95°F 26 June 1994	23°F 3 June 1936	1.02 in 16 June 1969
July	96°F 5 July 1989	28°F 1 July 2020	1.56 in 18 July 1971
August	93°F 4 August 2026	29°F 21 August 1964	1.60 in 22 August 2022
September	89°F 5 September 2022, 11 September 2021, 10 September 2021 and 2 more	15°F 29 September 1999, 30 September 1985	1.77 in 30 September 1959
October	81°F 7 October 1979	-9°F 31 October 1991	1.20 in 8 October 1938
November	71°F 10 November 1980, 9 November 1980	-30°F 27 November 1952	0.73 in 22 November 2013
December	63°F 19 December 2025, 30 December 2017	-42°F 8 December 1978, 14 December 1964	1.03 in 9 December 1943

Streaks, months and years

Longest heat streak	13 days	7 July to 19 July 2003	A high of 90°F or above
Longest cold streak	36 days	19 December 2012 to 23 January 2013	A high of 32°F or below
Wettest month	5.40 in	August 1993
Driest month	0.00 in	October 1995	and 5 more
Wettest year	11.55 in	1969
Driest year	3.40 in	1956

Every record in words

The coldest night on record in Alamosa, CO: a low of -50°F on Wednesday 28 January 1948.
The wettest day on record in Alamosa, CO: 1.77 in on Wednesday 30 September 1959.
The warmest night on record in Alamosa, CO: a low of 60°F on Sunday 15 July 1934.
The coldest day on record in Alamosa, CO: a high of 0°F on Monday 7 December 1964.
The longest run of days with a high of 90°F or above in Alamosa, CO: 13 days, from Monday 7 July to Saturday 19 July 2003.
The longest run of days with a high of 32°F or below in Alamosa, CO: 36 days, from Wednesday 19 December 2012 to Wednesday 23 January 2013.
The wettest month on record in Alamosa, CO: August 1993, with 5.40 in of precipitation.
The driest month on record in Alamosa, CO: October 1995, with 0.00 in of precipitation (shared with 5 other months).
The wettest year on record in Alamosa, CO: 1969, with 11.55 in of precipitation.
The driest year on record in Alamosa, CO: 1956, with 3.40 in of precipitation.

Alamosa, CO the day's answers