Climate and monthly weather forecast
Haynes Mill, PA

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Weather in January

January, like December, in Haynes Mill, Pennsylvania, is a wintry winter month, with temperature in the range of an average low of 20.8°F (-6.2°C) and an average high of 33.4°F (0.8°C). The coldest temperatures occur during January, when averages reach a peak of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Haynes Mill, Pennsylvania, with an average temperature varying between 22.5°F (-5.3°C) and 36.7°F (2.6°C). In February, the average high-temperature registers at a still cold 36.7°F (2.6°C), nearly identical to January's 33.4°F (0.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Haynes Mill, Pennsylvania, with an average temperature varying between 45.1°F (7.3°C) and 29.7°F (-1.3°C). Haynes Mill, Pennsylvania, in March experiences a slight uptick in the average high-temperature, adjusting from February's cold 36.7°F (2.6°C) to a chilly 45.1°F (7.3°C). Weather in March »

Weather in April

April is a refreshing spring month in Haynes Mill, Pennsylvania, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 57.7°F (14.3°C). In April, the meteorological conditions change with the average high-temperature moving from a frosty 45.1°F (7.3°C) in March to a mild 57.7°F (14.3°C). Weather in April »

Weather in May

May, the last month of the spring in Haynes Mill, is an agreeable month, with an average temperature varying between 49.6°F (9.8°C) and 68.7°F (20.4°C). A shift in the average high-temperature is noticeable in May, changing from a refreshing 57.7°F (14.3°C) in April to an agreeable 68.7°F (20.4°C). Weather in May »

Weather in June

June, the first month of the summer in Haynes Mill, is a moderately hot month, with an average temperature ranging between min 56.8°F (13.8°C) and max 76.8°F (24.9°C). June's arrival sees a mild rise in the average high-temperature, transitioning from May's agreeable 68.7°F (20.4°C) to a moderately hot 76.8°F (24.9°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Haynes Mill, Pennsylvania, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 82.8°F (28.2°C). July is Haynes Mill's warmest month, registering average high temperatures of 82.8°F (28.2°C) and lows of 62.2°F (16.8°C). The heat index value during July is evaluated at a tropical 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Haynes Mill, Pennsylvania, with an average temperature fluctuating between 60.6°F (15.9°C) and 80.2°F (26.8°C). The shift to August signals an average high-temperature of a still moderately hot 80.2°F (26.8°C), subtly varied from July's 82.8°F (28.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Haynes Mill, Pennsylvania, with an average temperature ranging between min 54.5°F (12.5°C) and max 73.8°F (23.2°C). During the shift to September, a minor reduction in average high-temperature is observed, shifting from 80.2°F (26.8°C) in August to a still moderately hot 73.8°F (23.2°C). Weather in September »

Weather in October

October, like September, in Haynes Mill, Pennsylvania, is another refreshing autumn month, with an average temperature ranging between max 61°F (16.1°C) and min 45.5°F (7.5°C). The shift from September to October involves a decrease in the average high-temperature, from a warm 73.8°F (23.2°C) to a refreshing 61°F (16.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Haynes Mill, Pennsylvania, with an average temperature fluctuating between 48.6°F (9.2°C) and 34.3°F (1.3°C). The onset of November brings a small change in high-temperatures, falling from a refreshing 61°F (16.1°C) in October to a chilly 48.6°F (9.2°C). Weather in November »

Weather in December

December, the first month of the winter in Haynes Mill, is still a cold month, with an average temperature fluctuating between 39°F (3.9°C) and 28°F (-2.2°C). Stepping into December, Haynes Mill observes a temperature decline, with the average high falling from November's chilly 48.6°F (9.2°C) to an icy 39°F (3.9°C). Weather in December »
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Frequently asked questions

What are the coldest months in Haynes Mill?

Haynes Mill experiences its lowest temperatures in January, with an average peak of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C).

How much does it rain in Haynes Mill?

In Haynes Mill, Pennsylvania, during the entire year, the rain falls for 167 days and collects up to 33.5" (851mm) of precipitation.

When does it snow in Haynes Mill?

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

How much does it snow in Haynes Mill?

Throughout the year, in Haynes Mill, there are 33.8 snowfall days, and 17.91" (455mm) of snow is accumulated.

What is the most humid month in Haynes Mill?

With an average relative humidity of 82%, February is the most humid month.

When does it snow the most in Haynes Mill?

February is the month with the most snowfall. Snow falls for 9.5 days and accumulates 4.88" (124mm) of snow.

What is the month with the least sunshine in Haynes Mill?

With an average of 4.5h of sunshine, February has the least sunshine of the year.

When is Daylight Saving Time (DST) in Haynes Mill?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Haynes Mill, 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 least humid month in Haynes Mill?

With an average relative humidity of 76%, April is the least humid month in Haynes Mill.

When is the highest UV index in Haynes Mill?

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

When it does not snow in Haynes Mill?

In Haynes Mill, snow does not fall in June through September.

When are the longest days in Haynes Mill?

With an average of 15h and 6min of daylight, June has the longest days of the year in Haynes Mill.

What month is the hottest in Haynes Mill?

Haynes Mill, Pennsylvania, witnesses the warmest weather in July, with temperatures averaging a high of 82.8°F (28.2°C) and a low of 62.2°F (16.8°C).

What is the rainiest month in Haynes Mill?

July is the month with the most rainfall in Haynes Mill, Pennsylvania. Rain falls for 16.7 days and accumulates 3.46" (88mm) of precipitation.

What month has the most sunshine in Haynes Mill?

With an average of 10.4h of sunshine, July has the most sunshine of the year.

What is the driest month in Haynes Mill?

September is the month with the least rainfall in Haynes Mill. Rain falls for 12.2 days and accumulates 2.01" (51mm) of precipitation.

What is the month with the shortest days in Haynes Mill?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the month with the lowest UV index in Haynes Mill?

The month with the lowest UV index in Haynes Mill is December, with an average maximum UV index of 1.

Average temperature
Haynes Mill, PA

Average temperature - Haynes Mill, PA

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure
Haynes Mill, PA

Average pressure - Haynes Mill, PA

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Haynes Mill, PA

Average wind speed - Haynes Mill, PA

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average rainfall
Haynes Mill, PA

Average rainfall - Haynes Mill, PA

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days
Haynes Mill, PA

Average rainfall days - Haynes Mill, PA

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9.9 days).

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Average snowfall
Haynes Mill, PA

Average snowfall - Haynes Mill, PA

The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Haynes Mill, PA

Average snowfall days - Haynes Mill, PA

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Haynes Mill, PA

Average daylight / Average sunshine - Haynes Mill, PA

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

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days
Haynes Mill, PA

Average sunshine days - Haynes Mill, PA

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (10.9 days).

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Average visibility
Haynes Mill, PA

Average visibility - Haynes Mill, PA

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

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Haynes Mill, Pennsylvania, USA

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