Climate and monthly weather forecast
Johnstown, OH

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Weather in January

January, the same as December, is an icy winter month in Johnstown, Ohio, with an average temperature varying between 32.5°F (0.3°C) and 20.3°F (-6.5°C). With average temperatures fluctuating between a high of 32.5°F (0.3°C) and a low of 20.3°F (-6.5°C), January stands out as the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Johnstown, is also a wintry month, with an average temperature varying between 23.5°F (-4.7°C) and 36.9°F (2.7°C). The shift to February signals an average high-temperature of a still cold 36.9°F (2.7°C), subtly varied from January's 32.5°F (0.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Johnstown, Ohio, with an average temperature ranging between min 32.2°F (0.1°C) and max 48°F (8.9°C). March brings a rise in Johnstown's average high-temperature, moving from an icy 36.9°F (2.7°C) in February to a frosty 48°F (8.9°C). Weather in March »

Weather in April

April in Johnstown, Ohio, is a moderate spring month, with an average temperature ranging between min 42.4°F (5.8°C) and max 60.1°F (15.6°C). The arrival of April signals an increase in the average high-temperature, moving from a frosty 48°F (8.9°C) in March to a mild 60.1°F (15.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Johnstown, Ohio, with an average temperature varying between 52.5°F (11.4°C) and 70.5°F (21.4°C). The shift into May brings an increase in the average high-temperature, moving from a refreshing 60.1°F (15.6°C) in April to a pleasant 70.5°F (21.4°C). Weather in May »

Weather in June

June, the first month of the summer in Johnstown, is a moderately hot month, with an average temperature fluctuating between 59.7°F (15.4°C) and 77.9°F (25.5°C). The shift into June is characterized by a subtle rise in the average high-temperature, transitioning from May's pleasant 70.5°F (21.4°C) to a moderately hot 77.9°F (25.5°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Johnstown, Ohio, with an average temperature varying between 81.3°F (27.4°C) and 63.3°F (17.4°C). July, noted for its average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 63.3°F (17.4°C), is considered the warmest month. The heat index for July is computed to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Johnstown, is another warm month, with an average temperature ranging between min 61.5°F (16.4°C) and max 80.1°F (26.7°C). Johnstown's shift into August is marked by a subtle change to a still moderately hot 80.1°F (26.7°C) from July's 81.3°F (27.4°C) in temperature. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Johnstown, Ohio, with an average temperature ranging between max 74.7°F (23.7°C) and min 55.9°F (13.3°C). The transition into September subtly indicates a reduction in the average high-temperature, down to a still moderately hot 74.7°F (23.7°C) from August's warm 80.1°F (26.7°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Johnstown, Ohio, with temperature in the range of an average high of 61.9°F (16.6°C) and an average low of 45.3°F (7.4°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a warm 74.7°F (23.7°C) in September to an enjoyable 61.9°F (16.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Johnstown, Ohio, with an average temperature fluctuating between 48.6°F (9.2°C) and 34.7°F (1.5°C). As November begins, there is a decrease in the average high-temperature, falling from an enjoyable 61.9°F (16.6°C) in October to a chilly 48.6°F (9.2°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Johnstown, Ohio, with an average temperature fluctuating between 28.4°F (-2°C) and 38.7°F (3.7°C). Arrival of December comes with a reduction in the average high-temperature, falling from a chilly 48.6°F (9.2°C) in November to a wintry 38.7°F (3.7°C). Weather in December »
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Frequently asked questions

What is the coldest month in Johnstown?

January tends to be the coldest month, with temperatures averaging a daily high of 32.5°F (0.3°C) and a low of 20.3°F (-6.5°C).

What is the most humid month in Johnstown?

With an average relative humidity of 84%, January is the most humid month in Johnstown, Ohio.

How many days does it rain in Johnstown?

In Johnstown, during the entire year, the rain falls for 176.7 days and collects up to 33.7" (856mm) of precipitation.

When does it snow in Johnstown?

Months with snowfall in Johnstown, Ohio, are January through May, October through December.

When does it snow the most in Johnstown?

January is the month with the most snowfall in Johnstown. Snow falls for 13.9 days and accumulates 4.02" (102mm) of snow.

How much does it snow in Johnstown?

In Johnstown, during the entire year, snow falls for 47.1 days and aggregates up to 15.43" (392mm) of snow.

What is the month with the least sunshine in Johnstown?

With an average of 3.5h of sunshine, January has the least sunshine of the year.

What are the months with the lowest UV index in Johnstown?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

When is Daylight Saving Time (DST) in Johnstown?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the rainiest month in Johnstown?

May is the month with the most rainfall in Johnstown. Rain falls for 20.2 days and accumulates 3.86" (98mm) of precipitation.

When it does not snow in Johnstown?

June through September are months without snowfall in Johnstown.

When are the longest days in Johnstown?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What time of the year is the hottest in Johnstown?

July, having an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 63.3°F (17.4°C), is the warmest month.

What is the month with the most sunshine in Johnstown?

July and August, with an average of 10.3h of sunshine, are months with the most sunshine.

What is the month with the highest UV index in Johnstown?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the driest month in Johnstown?

The month with the least rainfall in Johnstown is September, when the rain falls for 14.5 days and typically collects 2.01" (51mm) of precipitation.

What is the least humid month in Johnstown?

With an average relative humidity of 76%, November is the least humid month.

What is the month with the shortest days in Johnstown?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

Average temperature
Johnstown, OH

Average temperature - Johnstown, OH

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

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Average pressure
Johnstown, OH

Average pressure - Johnstown, OH

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Johnstown, OH

Average wind speed - Johnstown, OH

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

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Average rainfall
Johnstown, OH

Average rainfall - Johnstown, OH

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days
Johnstown, OH

Average rainfall days - Johnstown, OH

The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is February (9.6 days).

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Average snowfall
Johnstown, OH

Average snowfall - Johnstown, OH

The month with the highest snowfall is January (4.02").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Johnstown, OH

Average snowfall days - Johnstown, OH

The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Johnstown, OH

Average daylight / Average sunshine - Johnstown, OH

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days
Johnstown, OH

Average sunshine days - Johnstown, OH

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is May (8.2 days).

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Average UV index
Johnstown, OH

Average UV index - Johnstown, OH

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Johnstown, OH

Average visibility - Johnstown, OH

The months with the highest visibility are March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February and September (5mi).

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Johnstown, Ohio, USA

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