Weather on June 30
Longmont, CO
55 Years of Data
Avg High
88°F
Avg Low
55°F
Warmest
2002
86°F avg
Coldest
1995
51°F avg
About This Date
June 30th in Longmont, CO typically brings warm summer weather, with average highs around 88°F and lows near 55°F — a 33°F daily swing. Over 55 years of records, the warmest June 30th was in 2002 (86°F average), while the coldest was 1995 (51°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 16% of June 30th dates historically, with the wettest June 30th recording 2.21" of rain. 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 June 30th in Longmont, CO? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 62° | 73° | — | — |
| 2024 | 83° | 60° | 71° | — | — |
| 2023 | 80° | 53° | 67° | — | — |
| 2022 | 94° | 60° | 77° | 0.43" | — |
| 2021 | 81° | 55° | 68° | — | — |
| 2020 | 92° | 54° | 73° | — | — |
| 2019 | 97° | 58° | 77° | — | — |
| 2018 | 92° | 59° | 75° | — | — |
| 2017 | 77° | 51° | 64° | 0.13" | — |
| 2016 | 79° | 58° | 68° | 0.03" | — |
| 2015 | 93° | 57° | 75° | — | — |
| 2014 | 93° | 60° | 77° | — | — |
| 2013 | 80° | 61° | 70° | 0.1" | — |
| 2012 | 97° | 60° | 78° | — | — |
| 2011 | 89° | 60° | 75° | 0.03" | — |
| 2010 | 91° | 51° | 71° | — | — |
| 2009 | 89° | 54° | 71° | — | — |
| 2008 | 90° | 50° | 70° | — | — |
| 2007 | 95° | 52° | 73° | — | — |
| 2006 | 93° | 59° | 76° | — | — |
| 2005 | 83° | 50° | 66° | — | — |
| 2004 | 84° | 54° | 69° | 0.64" | — |
| 2003 | 79° | 56° | 67° | — | — |
| 2002warmest | 101° | 71° | 86° | — | — |
| 2001 | 99° | 54° | 76° | — | — |
| 2000 | 93° | 49° | 71° | — | — |
| 1999 | 91° | 43° | 67° | — | — |
| 1998 | 94° | 58° | 76° | — | — |
| 1997 | 91° | 51° | 71° | — | — |
| 1996 | 85° | 52° | 68° | — | — |
| 1995coldest | 56° | 46° | 51° | 0.43" | — |
| 1994 | 96° | 53° | 75° | — | — |
| 1993 | 100° | 54° | 77° | — | — |
| 1992 | 87° | 54° | 70° | — | — |
| 1991 | 93° | 58° | 75° | — | — |
| 1990 | 103° | 54° | 78° | — | — |
| 1989 | 89° | 51° | 70° | — | — |
| 1988 | 80° | 58° | 69° | — | — |
| 1987 | 59° | 53° | 56° | 2.21" | — |
| 1986 | 81° | 59° | 70° | — | — |
| 1985 | 87° | 54° | 70° | — | — |
| 1984 | 95° | 58° | 76° | — | — |
| 1983 | 85° | 55° | 70° | — | — |
| 1982 | 94° | 56° | 75° | — | — |
| 1981 | 77° | 54° | 65° | — | — |
| 1980 | 98° | 58° | 78° | — | — |
| 1979 | 90° | 55° | 72° | — | — |
| 1978 | 86° | 61° | 73° | 0.43" | — |
| 1977 | 92° | 50° | 71° | — | — |
| 1976 | 81° | 53° | 67° | — | — |
| 1975 | 95° | 53° | 74° | — | — |
| 1974 | 93° | 59° | 76° | — | — |
| 1973 | 93° | 62° | 78° | — | — |
| 1972 | 88° | 56° | 72° | — | — |
| 1971 | 83° | 56° | 69° | — | — |
55 years of data from LONGMONT 2 ESE