Johnstown climate

Typical historical weather for Johnstown, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Johnstown.

Annual average

10.4°C

across all months

Warmest month

31.4°C

Jul average high

Coolest month

-7.5°C

Jan average low

Annual rainfall

501mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

38.2°C

12 July 2024

Coldest day

-27.9°C

23 December 2022

Wettest day

58.5mm

18 May 2017

Windiest day

7.6m/s

13 March 2019