Johnstown Weather History Pennsylvania, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Mon 10 Aug, 2026 Weather in Johnstown

Sunrise: 06:22 AM Sunset: 08:20 PM	Moonrise: 03:02 AM Moonset: 06:59 PM	Max: 27.6 °c	Min: 17.8 °c	Avg: 22.0 °c	Precip: 16.30 mm	Max Wind: 18.7 kph

	Mon 10 0:00 am	Mon 10 3:00 am	Mon 10 6:00 am	Mon 10 9:00 am	Mon 10 12:00 pm	Mon 10 3:00 pm	Mon 10 6:00 pm	Mon 10 9:00 pm
Icon
Temp	18.8°c	17.8°c	18.7°c	21.8°c	27.6°c	25.3°c	24.5°c	22.0°c
Wind	5.4 kmph	5.8 kmph	5.8 kmph	13.4 kmph	16.9 kmph	13.0 kmph	16.2 kmph	13.0 kmph
Precip	0.00 mm	0.00 mm	1.00 mm	2.30 mm	0.10 mm	0.30 mm	0.20 mm	0.00 mm
Cloud	0%	0%	79%	81%	77%	75%	73%	74%
Humidity	82%	84%	87%	75%	67%	70%	75%	88%
Pressure	1018 mb	1018 mb	1018 mb	1018 mb	1018 mb	1016 mb	1014 mb	1015 mb

Johnstown Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	0°C / 31°F	-7°C / 19°F	-4°C / 25°F	66 hours	101.30 mm / 3.99 In	13 days	1019 mb / 31 In
February	2°C / 36°F	-6°C / 21°F	-2°C / 29°F	73 hours	113.86 mm / 4.48 In	12 days	1019 mb / 31 In
March	8°C / 46°F	-1°C / 29°F	3°C / 38°F	114 hours	124.31 mm / 4.89 In	11 days	1018 mb / 31 In
April	14°C / 57°F	4°C / 39°F	9°C / 48°F	124 hours	145.90 mm / 5.74 In	11 days	1016 mb / 30 In
May	19°C / 67°F	9°C / 49°F	14°C / 58°F	136 hours	165.49 mm / 6.52 In	12 days	1016 mb / 30 In
June	24°C / 75°F	14°C / 57°F	19°C / 66°F	153 hours	161.68 mm / 6.37 In	10 days	1014 mb / 30 In
July	27°C / 80°F	16°C / 61°F	21°C / 70°F	171 hours	128.12 mm / 5.04 In	10 days	1015 mb / 30 In
August	25°C / 78°F	15°C / 59°F	20°C / 68°F	182 hours	99.96 mm / 3.94 In	9 days	1016 mb / 30 In
September	22°C / 72°F	12°C / 54°F	17°C / 62°F	175 hours	128.27 mm / 5.05 In	8 days	1018 mb / 31 In
October	15°C / 59°F	6°C / 44°F	11°C / 51°F	152 hours	124.30 mm / 4.89 In	8 days	1017 mb / 31 In
November	8°C / 47°F	0°C / 32°F	4°C / 39°F	140 hours	93.61 mm / 3.69 In	8 days	1020 mb / 31 In
December	3°C / 37°F	-3°C / 26°F	0°C / 31°F	81 hours	132.56 mm / 5.22 In	11 days	1020 mb / 31 In

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