Climate and monthly weather forecast
Johnstown, NY

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Weather in January

January, the same as December, in Johnstown, New York, is another subzero cold winter month, with an average temperature fluctuating between 26.6°F (-3°C) and 15.3°F (-9.3°C). January, on average, is the coldest month, registering a high temperature of 26.6°F (-3°C) and a low of 15.3°F (-9.3°C). Weather in January »

Weather in February

February, the last month of the winter in Johnstown, is another freezing cold month, with an average temperature ranging between min 17.1°F (-8.3°C) and max 29.7°F (-1.3°C). February's average high-temperature stands at a still freezing cold 29.7°F (-1.3°C), showing little deviation from January's 26.6°F (-3°C). Weather in February »

Weather in March

March, the first month of the spring in Johnstown, is a wintry month, with temperature in the range of an average high of 38.5°F (3.6°C) and an average low of 24.3°F (-4.3°C). March showcases a minor temperature ascent, adjusting from February's freezing cold 29.7°F (-1.3°C) to a cold 38.5°F (3.6°C). Weather in March »

Weather in April

April is a cool spring month in Johnstown, New York, with an average temperature fluctuating between 52.5°F (11.4°C) and 34.7°F (1.5°C). April's onset brings a rise in the average high-temperature, moving from a cold 38.5°F (3.6°C) in March to a fresh 52.5°F (11.4°C). Weather in April »

Weather in May

May, the last month of the spring in Johnstown, is an enjoyable month, with an average temperature fluctuating between 45.5°F (7.5°C) and 66.4°F (19.1°C). Johnstown in May sees a temperature change, with average high-temperatures moving from a fresh 52.5°F (11.4°C) in April to a comfortable 66.4°F (19.1°C). Weather in May »

Weather in June

June, the first month of the summer in Johnstown, is an agreeable month, with an average temperature varying between 73°F (22.8°C) and 52.2°F (11.2°C). The onset of June introduces a subtle rise in the average high-temperature, nudging from a refreshing 66.4°F (19.1°C) in May to a pleasant 73°F (22.8°C). Weather in June »

Weather in July

July in Johnstown, New York, is a warm summer month, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 79.5°F (26.4°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 79.5°F (26.4°C) and a low of 58.1°F (14.5°C). Weather in July »

Weather in August

August, the last month of the summer in Johnstown, is another warm month, with an average temperature fluctuating between 56.8°F (13.8°C) and 77.4°F (25.2°C). As Johnstown steps into August, the average high-temperature is measured at a still moderately hot 77.4°F (25.2°C), displaying minor differences from July's 79.5°F (26.4°C). Weather in August »

Weather in September

September, the first month of the autumn in Johnstown, is also an agreeable month, with an average temperature varying between 70.5°F (21.4°C) and 50.7°F (10.4°C). Johnstown's progression into September involves a minor drop in the average high-temperature, slightly receding from a moderately hot 77.4°F (25.2°C) in August to a pleasant 70.5°F (21.4°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Johnstown, New York, with an average temperature ranging between max 56.3°F (13.5°C) and min 41.7°F (5.4°C). Johnstown's October weather features a mild decline in high-temperatures, reducing from a pleasant 70.5°F (21.4°C) in September to a refreshing 56.3°F (13.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Johnstown, is another chilly month, with an average temperature fluctuating between 31.1°F (-0.5°C) and 43.5°F (6.4°C). November brings a drop in Johnstown's average high-temperature, falling from a mild 56.3°F (13.5°C) in October to a chilly 43.5°F (6.4°C). Weather in November »

Weather in December

December, the first month of the winter in Johnstown, is also an icy month, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 22.8°F (-5.1°C). The average high-temperature decreases in December, shifting from a chilly 43.5°F (6.4°C) in November to an icy 32.5°F (0.3°C). Weather in December »
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, marked by an average high-temperature of 26.6°F (-3°C) and a low-temperature of 15.3°F (-9.3°C), is the coldest month.

How many days does it rain?

In Johnstown, during the entire year, the rain falls for 165.5 days and collects up to 33.74" (857mm) of precipitation.

When does it snow?

January through May, October through December are months with snowfall.

How many days does it snow?

In Johnstown, during the entire year, snow falls for 72.7 days and aggregates up to 43.46" (1104mm) of snow.

What is the month with the lowest UV index?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the most humid month?

February is the most humid month in Johnstown, with an average relative humidity of 86%.

When does it snow the most?

February is the month with the most snowfall. Snow falls for 16.6 days and accumulates 11.54" (293mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 3.5h of sunshine.

When is Daylight Saving Time (DST)?

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 are the least humid months?

The months with the lowest humidity are April and May, with an average relative humidity of 76%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 17.2 days and accumulates 3.46" (88mm) of precipitation.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

When it does not snow in Johnstown?

In Johnstown, snow does not fall in June through September.

When are the longest days in Johnstown?

June has the longest days of the year, with an average of 15h and 18min of daylight.

What time of the year is the hottest in Johnstown?

The highest temperatures are recorded in July, with averages reaching a high of 79.5°F (26.4°C) and a low of 58.1°F (14.5°C).

What month has the most sunshine?

With an average of 10.3h of sunshine, July has the most sunshine of the year.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12 days and accumulates 2.13" (54mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

Average temperature
Johnstown, NY

Average temperature - Johnstown, NY

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (26.6°F).

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure
Johnstown, NY

Average pressure - Johnstown, NY

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Johnstown, NY

Average wind speed - Johnstown, NY

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest months (with the lowest average wind speed) are August and September (5.7mph).

Average humidity
Johnstown, NY

Average humidity - Johnstown, NY

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (76%).

Average rainfall
Johnstown, NY

Average rainfall - Johnstown, NY

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days
Johnstown, NY

Average rainfall days - Johnstown, NY

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (8.9 days).

Average snowfall
Johnstown, NY

Average snowfall - Johnstown, NY

The month with the highest snowfall is February (11.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Johnstown, NY

Average snowfall days - Johnstown, NY

The month with the highest number of snowfall days is January (17.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Johnstown, NY

Average daylight / Average sunshine - Johnstown, NY

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

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

Average sunshine days
Johnstown, NY

Average sunshine days - Johnstown, NY

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (8.4 days).

Average UV index
Johnstown, NY

Average UV index - Johnstown, NY

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Johnstown, New York, USA

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