Johnstown, CO
Climate overview — based on NOAA 1991-2020 normals from LOVELAND 2N, CO US.
Year-round temperatures (°F)
Climate summary
Johnstown has an annual average temperature of 48.7°F with about 15.6 inches of precipitation per year and 47 inches of snow. The warmest month is July (average high 88.6°F), and the coldest is January (average low 12.9°F). May is typically the wettest month (2.68 in) and January the driest (0.52 in). Snow typically falls from October through May.
Best time to visit Johnstown
Full guide →Climate change signal
All-time records →176 of 366 (48.1%) of Johnstown's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1980s | 3 | |
| 1990s | 70 | |
| 2000s | 76 | |
| 2010s | 105 | |
| 2020s | 112 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 43.9°F | 12.9°F | 28.4°F | 0.52 in | 6.0 in | 5 |
| February | 46.2°F | 15.4°F | 30.8°F | 0.62 in | 8.2 in | 7 |
| March | 56.1°F | 23.0°F | 39.5°F | 1.28 in | 7.9 in | 7 |
| April | 62.4°F | 30.6°F | 46.5°F | 2.18 in | 5.7 in | 10 |
| May | 71.0°F | 39.8°F | 55.4°F | 2.68 in | 1.1 in | 13 |
| June | 82.7°F | 49.2°F | 66.0°F | 1.63 in | — | 10 |
| July | 88.6°F | 55.1°F | 71.9°F | 1.47 in | — | 9 |
| August | 86.7°F | 52.9°F | 69.8°F | 1.29 in | — | 9 |
| September | 78.9°F | 44.2°F | 61.5°F | 1.36 in | — | 8 |
| October | 65.2°F | 32.2°F | 48.7°F | 1.18 in | 3.5 in | 6 |
| November | 52.8°F | 21.1°F | 37.0°F | 0.81 in | 7.0 in | 6 |
| December | 43.6°F | 13.4°F | 28.5°F | 0.58 in | 7.6 in | 5 |
Climate twins of Johnstown
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).