Johnstown weather by month & the best time to visit

When is the best time to visit Johnstown?

For sunshine, the best time to visit Johnstown is August, then July and September. The dullest month is January (0/100, 69 mm of rain). The full month-by-month picture is in the table below.

How sunny is Johnstown?

Johnstown gets a moderate 1,899 hours of sunshine a year. 73 Sunshine Score points separate August (73) from January (0), so the month you pick matters. It ranks #440 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 1,044 mm of rain spreads fairly evenly across the months, with no pronounced dry season.

Sunshine Score by month

Month	Score	Day high	Night low	Rain	UV
January	0	-1° / 30°F	-9° / 16°F	69 mm	1
February	0	0° / 32°F	-9° / 16°F	67 mm	2
March	0	6° / 43°F	-4° / 25°F	79 mm	3
April	31	13° / 55°F	1° / 34°F	88 mm	5
May	65	19° / 66°F	8° / 46°F	105 mm	6
June	70	23° / 73°F	13° / 55°F	105 mm	7
July	72	26° / 79°F	15° / 59°F	99 mm	7
August	73	26° / 79°F	14° / 57°F	91 mm	7
September	72	23° / 73°F	10° / 50°F	99 mm	5
October	43	15° / 59°F	4° / 39°F	90 mm	3
November	0	8° / 46°F	-2° / 28°F	69 mm	2
December	0	1° / 34°F	-6° / 21°F	83 mm	1

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