Climate and monthly weather forecast
Portville, NY

Weather in January

January, the same as December, in Portville, New York, is a freezing cold winter month, with an average temperature varying between 27.9°F (-2.3°C) and 15.8°F (-9°C). The coldest month is January, with an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 15.8°F (-9°C). Weather in January »

Weather in February

February, the last month of the winter in Portville, is another freezing cold month, with an average temperature ranging between min 17.6°F (-8°C) and max 30.7°F (-0.7°C). In February, the average high-temperature is almost the same as in January - a still freezing cold 30.7°F (-0.7°C). Weather in February »

Weather in March

March, the first month of the spring in Portville, is a cold month, with an average temperature varying between 40.1°F (4.5°C) and 24.4°F (-4.2°C). In Portville, New York, the average high-temperature in March increases from a freezing cold 30.7°F (-0.7°C) in February to a wintry 40.1°F (4.5°C). Weather in March »

Weather in April

April in Portville, New York, is a fresh spring month, with an average temperature fluctuating between 34.3°F (1.3°C) and 52.5°F (11.4°C). In Portville, New York, the average high-temperature in April rises from a cold 40.1°F (4.5°C) in March to a fresh 52.5°F (11.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Portville, New York, with temperature in the range of an average high of 66°F (18.9°C) and an average low of 45.1°F (7.3°C). In Portville, the average high-temperature in May rises from a fresh 52.5°F (11.4°C) in April to a comfortable 66°F (18.9°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Portville, New York, with an average temperature ranging between max 73°F (22.8°C) and min 51.8°F (11°C). In June, the average high-temperature marginally rises from an enjoyable 66°F (18.9°C) in May to a pleasant 73°F (22.8°C). Weather in June »

Weather in July

July in Portville, New York, is a warm summer month, with an average temperature ranging between min 55.9°F (13.3°C) and max 78.4°F (25.8°C). The warmest month is July, with an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 55.9°F (13.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Portville, New York, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 76.3°F (24.6°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 76.3°F (24.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Portville, New York, with an average temperature varying between 49.5°F (9.7°C) and 69.6°F (20.9°C). In Portville, the average high-temperature in September slightly decreases from a warm 76.3°F (24.6°C) in August to a pleasant 69.6°F (20.9°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Portville, New York, with an average temperature ranging between max 56.7°F (13.7°C) and min 41.2°F (5.1°C). In October, the average high-temperature drops from an agreeable 69.6°F (20.9°C) in September to a mild 56.7°F (13.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Portville, is another chilly month, with temperature in the range of an average high of 43.5°F (6.4°C) and an average low of 30°F (-1.1°C). In November, the average high-temperature drops from a mild 56.7°F (13.7°C) in October to a frosty 43.5°F (6.4°C). Weather in November »

Weather in December

December, the first month of the winter in Portville, is still a cold month, with an average temperature varying between 23.9°F (-4.5°C) and 33.8°F (1°C). In Portville, New York, the average high-temperature in December decreases from a chilly 43.5°F (6.4°C) in November to a wintry 33.8°F (1°C). Weather in December »
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FAQ

What is the coldest month in Portville?

January is the coldest month in Portville, with an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 15.8°F (-9°C).

What is the most humid month in Portville?

January and February, with an average relative humidity of 89%, are most humid months in Portville.

How many days does it rain in Portville?

Throughout the year, there are 168.9 rainfall days, and 30" (762mm) of precipitation is accumulated.

When does it snow in Portville?

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

How much does it snow in Portville?

Throughout the year, there are 92.6 snowfall days, and 43.58" (1107mm) of snow is accumulated.

What is the month with the least sunshine in Portville?

With an average of 2.3h of sunshine, January has the least sunshine of the year in Portville.

When is the lowest UV index in Portville?

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

What is the snowiest month in Portville?

The month with the most snowfall in Portville is February, when snow falls for 19 days and typically aggregates up to 10.63" (270mm) of snow.

When is Daylight Saving Time (DST) in Portville?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.

What is the rainiest month in Portville?

The month with the most rainfall is April, when the rain falls for 16.6 days and typically aggregates up to 3.35" (85mm) of precipitation.

What is the least humid month in Portville?

The months with the lowest humidity are May through July, with an average relative humidity of 79%.

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

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

When it does not snow in Portville?

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

When are the longest days in Portville?

With an average of 15h and 11min of daylight, June has the longest days of the year in Portville.

What is the warmest month in Portville?

July is the warmest month in Portville, New York, with an average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 55.9°F (13.3°C).

What month has the most sunshine in Portville?

July has the most sunshine of the year in Portville, with an average of 9.4h of sunshine.

What is the driest month in Portville?

September is the month with the least rainfall. Rain falls for 15.4 days and accumulates 1.93" (49mm) of precipitation.

What is the month with the shortest days in Portville?

The month with the shortest days is December, with an average of 9h and 11min of daylight.

Average temperature
Portville, NY

Average temperature - Portville, NY

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).

The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure
Portville, NY

Average pressure - Portville, NY

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Portville, NY

Average wind speed - Portville, NY

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity
Portville, NY

Average humidity - Portville, NY

The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are May, June and July (79%).

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Average rainfall
Portville, NY

Average rainfall - Portville, NY

The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days
Portville, NY

Average rainfall days - Portville, NY

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall
Portville, NY

Average snowfall - Portville, NY

The month with the highest snowfall is February (10.63").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Portville, NY

Average snowfall days - Portville, NY

The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Portville, NY

Average daylight / Average sunshine - Portville, NY

The month with the longest days is June (Average daylight: 15h and 11min).
The month with the shortest days is December (Average daylight: 9h and 11min).

The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

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Average sunshine days
Portville, NY

Average sunshine days - Portville, NY

The month with the most sunshine days is September (12.4 days).
The month with the least sunshine days is February (5.9 days).

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Average UV index
Portville, NY

Average UV index - Portville, 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).

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Average visibility
Portville, NY

Average visibility - Portville, NY

The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).

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