Climate and monthly weather forecast
Portville, NY

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Weather in January

January, the same as December, in Portville, New York, is another subzero cold winter month, with an average temperature fluctuating 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

The last month of the winter, February, is also a subzero cold month in Portville, New York, with an average temperature ranging between min 17.6°F (-8°C) and max 30.7°F (-0.7°C). February's advent denotes a minor fluctuation in the average high-temperature to a still subzero cold 30.7°F (-0.7°C) from January's 27.9°F (-2.3°C). Weather in February »

Weather in March

March, the first month of the spring in Portville, is an icy month, with an average temperature varying between 40.1°F (4.5°C) and 24.4°F (-4.2°C). March brings a rise in Portville's average high-temperature, moving from a subzero cold 30.7°F (-0.7°C) in February to a cold 40.1°F (4.5°C). Weather in March »

Weather in April

April in Portville, New York, is a cool spring month, with an average temperature ranging between max 52.5°F (11.4°C) and min 34.3°F (1.3°C). With the onset of April, Portville experiences a temperature shift, with the average high-temperature moving from a cold 40.1°F (4.5°C) in March to a cool 52.5°F (11.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Portville, New York, with an average temperature varying between 66°F (18.9°C) and 45.1°F (7.3°C). An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a fresh 52.5°F (11.4°C) to an enjoyable 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 fluctuating between 73°F (22.8°C) and 51.8°F (11°C). The start of June brings a subtle rise in the average high-temperature, moving 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 moderately hot summer month, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 78.4°F (25.8°C). In Portville, the month of July registers the highest temperatures, averaging 78.4°F (25.8°C) at the peak and 55.9°F (13.3°C) at the lowest. Weather in July »

Weather in August

August, the last month of the summer in Portville, is also a moderately hot month, with an average temperature varying between 54.5°F (12.5°C) and 76.3°F (24.6°C). August's arrival brings an average high-temperature of a still warm 76.3°F (24.6°C), demonstrating subtle variation from the preceding month. 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 69.6°F (20.9°C) and 49.5°F (9.7°C). As August transitions into September, Portville sees a gentle drop in the average high-temperature, transitioning from a moderately hot 76.3°F (24.6°C) to an agreeable 69.6°F (20.9°C). Weather in September »

Weather in October

October, the same as September, in Portville, New York, is another refreshing autumn month, with an average temperature ranging between max 56.7°F (13.7°C) and min 41.2°F (5.1°C). The arrival of October corresponds with a temperature reduction, down from September's agreeable 69.6°F (20.9°C) to a mild 56.7°F (13.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Portville, New York, with temperature in the range of an average low of 30°F (-1.1°C) and an average high of 43.5°F (6.4°C). The decrease of average high-temperatures is mild in November, with a decline 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

The first month of the winter, December, is also a wintry month in Portville, New York, with temperature in the range of an average high of 33.8°F (1°C) and an average low of 23.9°F (-4.5°C). The onset of December is marked by a decrease in temperature, transitioning 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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Frequently asked questions

What is the coldest time of year in Portville?

Portville notes the coldest temperatures in January, with a average high of 27.9°F (-2.3°C) and a low 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, New York.

How much 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?

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

How many days does it snow in Portville?

In Portville, New York, during the entire year, snow falls for 92.6 days and aggregates up to 43.58" (1107mm) of snow.

What is the month with the least sunshine in Portville?

January has the least sunshine of the year, with an average of 2.3h of sunshine.

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

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

What is the snowiest month in Portville?

February is the month with the most snowfall in Portville. Snow falls for 19 days and accumulates 10.63" (270mm) of snow.

When is Daylight Saving Time (DST) in Portville?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Portville, 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 Portville?

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

What are the least humid months in Portville?

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

When is the highest UV index in Portville?

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

When it does not snow in Portville?

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

When are the longest days in Portville?

The month with the longest days in Portville, New York, is June, with an average of 15h and 12min of daylight.

What is the warmest month in Portville?

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

What month has the most sunshine in Portville?

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

What is the driest month in Portville?

The month with the least rainfall in Portville, New York, is September, when the rain falls for 15.4 days and typically collects 1.93" (49mm) of precipitation.

What is the month with the shortest days in Portville?

December has the shortest days of the year in Portville, New York, with an average of 9h and 12min 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 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

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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Portville, New York, USA

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