October weather in Johnstown, CO
The average temperature in Johnstown in October is 48.7°F (32.2°F–65.2°F). Average precipitation: 1.18 inches. Average snowfall is 3.5 inches.
October is a fall month in Johnstown, and is warmer than the annual average of 48.7°F. Daily temperatures swing about 33°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 10h 54m. For travel, October is cool.
Avg High
65.2°F
Avg Low
32.2°F
Precipitation
1.18 in
Snow
3.5 in
October records in Johnstown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 88.0°F (2005) | 35.1°F (2020) | 0.93 in (2004) |
| October 2 | 88.0°F (2005) | 26.1°F (2009) | 0.29 in (2002) |
| October 3 | 90.0°F (2024) | 25.0°F (2009) | 0.37 in (2017) |
| October 4 | 87.1°F (2018) | 26.1°F (2009) | 0.51 in (2015) |
| October 5 | 88.0°F (1993) | 28.9°F (1991) | 0.26 in (2005) |
| October 6 | 89.1°F (2024) | 25.0°F (1995) | 0.52 in (2025) |
| October 7 | 84.9°F (2007) | 23.0°F (2012) | 0.19 in (2004) |
| October 8 | 84.9°F (2006) | 21.0°F (1992) | 0.42 in (1990) |
| October 9 | 84.9°F (2020) | 24.1°F (1990) | 0.69 in (2017) |
| October 10 | 86.0°F (2025) | 15.1°F (2009) | 1.42 in (2005) |
| October 11 | 89.1°F (1996) | 14.0°F (2019) | 0.57 in (2005) |
| October 12 | 87.1°F (2015) | 14.0°F (2019) | 0.35 in (2008) |
| October 13 | 84.9°F (1989) | 21.9°F (2019) | 0.15 in (2021) |
| October 14 | 82.0°F (2015) | 21.0°F (2018) | 0.71 in (2007) |
| October 15 | 84.0°F (2024) | 10.9°F (2018) | 0.50 in (2007) |
| October 16 | 89.1°F (1991) | 10.0°F (2018) | 1.48 in (1998) |
| October 17 | 84.0°F (1991) | 16.0°F (1999) | 0.89 in (1993) |
| October 18 | 84.0°F (2023) | 21.9°F (1996) | 0.37 in (1993) |
| October 19 | 84.0°F (2009) | 21.0°F (1989) | 0.08 in (2016) |
| October 20 | 81.0°F (2022) | 24.1°F (1995) | 0.74 in (2005) |
| October 21 | 84.9°F (2023) | 21.0°F (1990) | 0.50 in (2015) |
| October 22 | 79.0°F (1992) | 18.0°F (1996) | 0.44 in (2015) |
| October 23 | 82.0°F (2016) | 21.0°F (2007) | 0.61 in (2015) |
| October 24 | 78.1°F (2023) | 19.0°F (2020) | 0.27 in (1997) |
| October 25 | 81.0°F (2014) | 14.0°F (2020) | 0.27 in (2012) |
| October 26 | 84.0°F (2017) | 5.0°F (2020) | 0.72 in (2011) |
| October 27 | 79.0°F (2014) | -8.0°F (2020) | 0.87 in (1998) |
| October 28 | 82.0°F (2016) | -7.1°F (2020) | 1.07 in (2009) |
| October 29 | 78.1°F (2016) | 10.0°F (1991) | 0.56 in (2009) |
| October 30 | 80.1°F (2016) | 3.9°F (1993) | 0.25 in (2019) |
| October 31 | 75.9°F (2007) | -0.9°F (2019) | 0.31 in (1989) |