Johnstown, PA Weather & Climate Normals
What a normal year in Johnstown actually looks like
On the 30-year record NOAA keeps for Johnstown, PA, the comfort score comes out to 50/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Johnstown's weather actually swings
Average temperatures in Johnstown run from 26°F in Jan up to 70°F in Jul, a 43.6°F seasonal swing, a middling gap by national standards.
Johnstown, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 33°F | 19°F | 2.54in |
| Feb | 36°F | 21°F | 2.53in |
| Mar | 45°F | 28°F | 3.12in |
| Apr | 58°F | 38°F | 3.54in |
| May | 68°F | 49°F | 4.12in |
| Jun | 75°F | 57°F | 4.4in |
| Jul | 79°F | 61°F | 4.22in |
| Aug | 77°F | 60°F | 3.95in |
| Sep | 71°F | 53°F | 3.99in |
| Oct | 59°F | 43°F | 3.06in |
| Nov | 47°F | 33°F | 3.11in |
| Dec | 38°F | 25°F | 2.68in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Johnstown's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Johnstown actually gets
Johnstown averages 41.26in of precipitation a year across roughly 170 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Johnstown against the rest of the country
Out of 4876 cities scored here, Johnstown comes in at 1753; within PA alone it ranks 15 of 193. Population is about 17,853.
Checking the actual forecast
These figures come from Johnstown Cambria Co Ap, PA US, the NOAA station 4.5 miles from Johnstown, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · Why this uses the nearest NOAA station