Weather on August 13
Longmont, CO
55 Years of Data
Avg High
87°F
Avg Low
55°F
Warmest
2022
81°F avg
Coldest
1992
56°F avg
About This Date
August 13th in Longmont, CO typically brings warm summer weather, with average highs around 87°F and lows near 55°F — a 32°F daily swing. Over 55 years of records, the warmest August 13th was in 2022 (81°F average), while the coldest was 1992 (56°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 18% of August 13th dates historically, with the wettest August 13th recording 2.16" of rain. The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.
Planning for August 13th in Longmont, 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 | 89° | 55° | 72° | — | — |
| 2024 | 87° | 61° | 74° | — | — |
| 2023 | 83° | 62° | 72° | — | — |
| 2022warmest | 95° | 67° | 81° | — | — |
| 2021 | 86° | 57° | 72° | — | — |
| 2020 | 94° | 57° | 75° | — | — |
| 2019 | 91° | 56° | 73° | — | — |
| 2018 | 91° | 54° | 72° | — | — |
| 2017 | 85° | 55° | 70° | 0.08" | — |
| 2016 | 88° | 51° | 69° | — | — |
| 2015 | 94° | 61° | 77° | 0.03" | — |
| 2014 | 90° | 58° | 74° | — | — |
| 2013 | 78° | 51° | 65° | 0.69" | — |
| 2012 | 83° | 57° | 70° | — | — |
| 2011 | 85° | 53° | 69° | — | — |
| 2010 | 86° | 66° | 76° | — | — |
| 2009 | 91° | 54° | 72° | — | — |
| 2008 | 91° | 56° | 73° | — | — |
| 2007 | 97° | 62° | 79° | — | — |
| 2006 | 84° | 58° | 71° | — | — |
| 2005 | 74° | 54° | 64° | 0.05" | — |
| 2004 | 80° | 49° | 64° | — | — |
| 2003 | 94° | 62° | 78° | — | — |
| 2002 | 72° | 42° | 57° | — | — |
| 2001 | 89° | 50° | 70° | — | — |
| 2000 | 80° | 58° | 69° | — | — |
| 1999 | 89° | 48° | 69° | — | — |
| 1998 | 90° | 49° | 69° | — | — |
| 1997 | 75° | 46° | 61° | 0.1" | — |
| 1996 | 101° | 52° | 76° | — | — |
| 1995 | 99° | 58° | 78° | — | — |
| 1994 | 92° | 63° | 77° | — | — |
| 1993 | 80° | 54° | 67° | — | — |
| 1992coldest | 66° | 47° | 56° | 0.18" | — |
| 1991 | 73° | 58° | 65° | 0.05" | — |
| 1990 | 72° | 42° | 57° | — | — |
| 1989 | 87° | 54° | 70° | 0.69" | — |
| 1988 | 88° | 51° | 69° | — | — |
| 1987 | 75° | 54° | 64° | — | — |
| 1986 | 85° | 53° | 69° | — | — |
| 1985 | 79° | 48° | 63° | — | — |
| 1984 | 87° | 52° | 69° | — | — |
| 1983 | 95° | 63° | 79° | — | — |
| 1982 | 91° | 56° | 73° | — | — |
| 1981 | 76° | 57° | 66° | 0.23" | — |
| 1980 | 98° | 62° | 80° | — | — |
| 1979 | 91° | 60° | 76° | — | — |
| 1978 | 95° | 63° | 79° | — | — |
| 1977 | 92° | 52° | 72° | — | — |
| 1976 | 88° | 50° | 69° | — | — |
| 1975 | 85° | 56° | 70° | 2.16" | — |
| 1974 | 81° | 57° | 69° | — | — |
| 1973 | 86° | 59° | 73° | — | — |
| 1972 | 99° | 54° | 76° | — | — |
| 1971 | 91° | 54° | 72° | — | — |
55 years of data from LONGMONT 2 ESE