Weather on June 9
Longmont, CO
55 Years of Data
Avg High
81°F
Avg Low
50°F
Warmest
1981
78°F avg
Coldest
1974
43°F avg
About This Date
June 9th in Longmont, CO typically brings warm summer weather, with average highs around 81°F and lows near 50°F — a 31°F daily swing. Over 55 years of records, the warmest June 9th was in 1981 (78°F average), while the coldest was 1974 (43°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 40% of June 9th dates historically, with the wettest June 9th recording 5.08" 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 9th in Longmont, CO? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 49° | 58° | — | — |
| 2024 | 84° | 54° | 69° | 0.03" | — |
| 2023 | 81° | 55° | 68° | 1.22" | — |
| 2022 | 80° | 55° | 68° | — | — |
| 2021 | 93° | 59° | 76° | — | — |
| 2020 | 78° | 43° | 60° | 1.52" | — |
| 2019 | 82° | 45° | 63° | 0.41" | — |
| 2018 | 94° | 51° | 72° | — | — |
| 2017 | 93° | 50° | 72° | — | — |
| 2016 | 89° | 55° | 72° | — | — |
| 2015 | 85° | 54° | 69° | — | — |
| 2014 | 69° | 37° | 53° | 0.25" | — |
| 2013 | 88° | 47° | 67° | — | — |
| 2012 | 95° | 60° | 78° | — | — |
| 2011 | 72° | 49° | 60° | 0.43" | — |
| 2010 | 82° | 51° | 67° | — | — |
| 2009 | 72° | 47° | 59° | 0.53" | — |
| 2008 | 78° | 43° | 60° | — | — |
| 2007 | 81° | 44° | 62° | — | — |
| 2006 | 87° | 63° | 75° | 0.1" | — |
| 2005 | 78° | 49° | 63° | 0.08" | — |
| 2004 | 82° | 58° | 70° | 0.38" | — |
| 2003 | 80° | 50° | 65° | — | — |
| 2002 | 91° | 54° | 72° | — | — |
| 2001 | 90° | 60° | 75° | — | — |
| 2000 | 100° | 54° | 77° | — | — |
| 1999 | 93° | 43° | 68° | — | — |
| 1998 | 70° | 42° | 56° | 1.35" | — |
| 1997 | 74° | 48° | 61° | 0.43" | — |
| 1996 | 92° | 61° | 76° | — | — |
| 1995 | 51° | 41° | 46° | 2.62" | — |
| 1994 | 86° | 44° | 65° | — | — |
| 1993 | 73° | 43° | 58° | — | — |
| 1992 | 74° | 46° | 60° | 0.08" | — |
| 1991 | 82° | 52° | 67° | — | — |
| 1990 | 87° | 51° | 69° | — | — |
| 1989 | 78° | 49° | 63° | — | — |
| 1988 | 95° | 60° | 78° | — | — |
| 1987 | 74° | 55° | 64° | 2.21" | — |
| 1986 | 69° | 53° | 61° | 0.84" | — |
| 1985 | 76° | 56° | 66° | 0.05" | — |
| 1984 | 76° | 43° | 59° | 0.53" | — |
| 1983 | 78° | 48° | 63° | — | — |
| 1982 | 86° | 40° | 63° | — | — |
| 1981warmest | 97° | 60° | 78° | — | — |
| 1980 | 78° | 48° | 63° | — | — |
| 1979 | 49° | 42° | 45° | 2.06" | — |
| 1978 | 78° | 46° | 62° | — | — |
| 1977 | 90° | 57° | 73° | 0.58" | — |
| 1976 | 90° | 54° | 72° | — | — |
| 1975 | 72° | 42° | 57° | 0.51" | — |
| 1974coldest | 49° | 38° | 43° | 5.08" | — |
| 1973 | 89° | 50° | 70° | — | — |
| 1972 | 84° | 56° | 70° | — | — |
| 1971 | 75° | 45° | 60° | — | — |
55 years of data from LONGMONT 2 ESE