June weather in Johnstown, CO

The average temperature in Johnstown in June is 66.0°F (49.2°F–82.7°F). Average precipitation: 1.63 inches.

June is a summer month in Johnstown, and is warmer than the annual average of 48.7°F. Daily temperatures swing about 33.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 50m. For travel, June is a comfortable month to visit.

Avg High
82.7°F
Avg Low
49.2°F
Precipitation
1.63 in
Daylight
14h 50m

June records in Johnstown

Date Record High Record Low Record Precip
June 1 89.1°F (1998) 37.0°F (2022) 0.52 in (2022)
June 2 93.0°F (2020) 37.0°F (2013) 0.46 in (1991)
June 3 93.9°F (2006) 39.9°F (2013) 0.64 in (1993)
June 4 95.0°F (2006) 39.0°F (1998) 1.20 in (2023)
June 5 93.9°F (2012) 36.0°F (1998) 0.97 in (2023)
June 6 97.0°F (2018) 34.0°F (1998) 1.18 in (1997)
June 7 97.0°F (2000) 39.9°F (2013) 0.69 in (1993)
June 8 99.0°F (2004) 34.0°F (2007) 0.73 in (1992)
June 9 96.1°F (2018) 34.0°F (2007) 1.16 in (2011)
June 10 95.0°F (2012) 35.1°F (2014) 0.70 in (1999)
June 11 97.0°F (2018) 37.9°F (2005) 0.18 in (2005)
June 12 100.0°F (2022) 39.9°F (2005) 1.38 in (2015)
June 13 100.0°F (2024) 39.0°F (2008) 0.69 in (2025)
June 14 100.0°F (2022) 39.9°F (2008) 0.72 in (2024)
June 15 102.0°F (2006) 39.9°F (2014) 0.62 in (1996)
June 16 100.0°F (2021) 41.0°F (2010) 0.41 in (2023)
June 17 100.0°F (2021) 42.1°F (2000) 1.09 in (1993)
June 18 100.0°F (2021) 43.0°F (2000) 1.51 in (2003)
June 19 100.0°F (2012) 43.0°F (1993) 0.45 in (2003)
June 20 96.1°F (2015) 43.0°F (2004) 2.62 in (1994)
June 21 100.0°F (2025) 44.1°F (2000) 0.48 in (1996)
June 22 100.0°F (2016) 37.9°F (2004) 0.78 in (2019)
June 23 100.0°F (2012) 37.9°F (2004) 0.42 in (2009)
June 24 102.0°F (2012) 39.9°F (2019) 0.15 in (1997)
June 25 100.9°F (2007) 41.0°F (1993) 0.32 in (2021)
June 26 102.0°F (2012) 46.0°F (1993) 0.47 in (2009)
June 27 102.9°F (2012) 48.0°F (2004) 0.40 in (2020)
June 28 100.0°F (2018) 48.0°F (2000) 0.31 in (1995)
June 29 102.9°F (2018) 42.1°F (2008) 1.20 in (2013)
June 30 98.1°F (1990) 44.1°F (2008) 0.09 in (2017)

Other months in Johnstown