Climate and monthly weather forecast
Mainland, PA

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Weather in January

January, like December, in Mainland, Pennsylvania, is a wintry winter month, with an average temperature fluctuating between 23.5°F (-4.7°C) and 35.6°F (2°C). Mainland notes the coldest temperatures in January, with a high average of 35.6°F (2°C) and a low of 23.5°F (-4.7°C). Weather in January »

Weather in February

February, the last month of the winter in Mainland, is another cold month, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 25.5°F (-3.6°C). Mainland in February witnesses an average high-temperature of a still cold 39.4°F (4.1°C), indicating a slight variation from January's 35.6°F (2°C). Weather in February »

Weather in March

March, the first month of the spring in Mainland, is a frosty month, with an average temperature ranging between max 48.2°F (9°C) and min 32.9°F (0.5°C). The onset of March introduces a subtle rise in the average high-temperature, nudging from a cold 39.4°F (4.1°C) in February to a frosty 48.2°F (9°C). Weather in March »

Weather in April

April in Mainland, Pennsylvania, is a mild spring month, with an average temperature ranging between max 60.4°F (15.8°C) and min 43.2°F (6.2°C). Mainland's weather in April shows a rise in the average high-temperature, moving up from March's chilly 48.2°F (9°C) to a mild 60.4°F (15.8°C). Weather in April »

Weather in May

May, the last month of the spring in Mainland, is an agreeable month, with an average temperature fluctuating between 53.2°F (11.8°C) and 71.2°F (21.8°C). The shift from April to May brings an increase in the average high-temperature, moving from a mild 60.4°F (15.8°C) to a pleasant 71.2°F (21.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Mainland, Pennsylvania, with temperature in the range of an average low of 60.8°F (16°C) and an average high of 79.3°F (26.3°C). Entering June, Mainland notices a subtle temperature elevation, with the average high-temperature advancing from May's pleasant 71.2°F (21.8°C) to a warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Mainland, Pennsylvania, with an average temperature ranging between min 66.9°F (19.4°C) and max 85.3°F (29.6°C). Mainland witnesses the warmest weather in July, with temperatures averaging a high of 85.3°F (29.6°C) and a low of 66.9°F (19.4°C). In July, the heat index is calculated to be a sweltering 95°F (35°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Mainland, Pennsylvania, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 65.3°F (18.5°C). As Mainland, Pennsylvania, transitions from July to August, the average high-temperatures adjust to a still moderately hot 82.8°F (28.2°C), nearly the same as the previous 85.3°F (29.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Mainland, Pennsylvania, with an average temperature fluctuating between 75.9°F (24.4°C) and 58.3°F (14.6°C). With the arrival of September, Mainland notices a mild change in the average high-temperature, sliding from August's 82.8°F (28.2°C) to a still warm 75.9°F (24.4°C). Weather in September »

Weather in October

October, like September, in Mainland, Pennsylvania, is another refreshing autumn month, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 63.5°F (17.5°C). Mainland in October undergoes a mild reduction in the average high-temperature, shifting from September's warm 75.9°F (24.4°C) to a comfortable 63.5°F (17.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Mainland, Pennsylvania, with an average temperature ranging between max 51.3°F (10.7°C) and min 37.2°F (2.9°C). November's arrival correlates with a reduction in the average high-temperature, down from an enjoyable 63.5°F (17.5°C) in October to a cool 51.3°F (10.7°C). Weather in November »

Weather in December

December, the first month of the winter in Mainland, is also an icy month, with temperature in the range of an average low of 30.7°F (-0.7°C) and an average high of 42.1°F (5.6°C). The arrival of December indicates a decrease in the average high-temperature, moving from a fresh 51.3°F (10.7°C) in November to a wintry 42.1°F (5.6°C). Weather in December »
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Frequently asked questions

What is the coldest month in Mainland?

January, on average, is the coldest month in Mainland, Pennsylvania, registering a high temperature of 35.6°F (2°C) and a low of 23.5°F (-4.7°C).

How much does it rain in Mainland?

Throughout the year, in Mainland, there are 116.6 rainfall days, and 10.63" (270mm) of precipitation is accumulated.

When does it snow in Mainland?

Months with snowfall in Mainland are January through May, November and December.

How much does it snow in Mainland?

In Mainland, during the entire year, snow falls for 14.8 days and aggregates up to 3.5" (89mm) of snow.

When is the lowest UV index in Mainland?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mainland.

What are the most humid months in Mainland?

The months with the highest humidity in Mainland are February, October and December, with an average relative humidity of 79%.

What is the month with the least sunshine in Mainland?

February has the least sunshine of the year, with an average of 4.7h of sunshine.

What is the snowiest month in Mainland?

March is the month with the most snowfall. Snow falls for 3.3 days and accumulates 1.02" (26mm) of snow.

When is Daylight Saving Time (DST) in Mainland?

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

The months with the lowest humidity in Mainland are April, July and August, with an average relative humidity of 73%.

When is the highest UV index in Mainland?

The months with the highest UV index in Mainland are May through August, with an average maximum UV index of 6.

When it does not snow in Mainland?

June through October are months without snowfall in Mainland, Pennsylvania.

When are the longest days in Mainland?

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

What is the warmest month in Mainland?

July registers as the month with the average highest temperatures in Mainland, reaching 85.3°F (29.6°C) at its peak and 66.9°F (19.4°C) at the lowest.

What is the wettest month in Mainland?

The month with the most rainfall in Mainland, Pennsylvania, is July, when the rain falls for 13.8 days and typically aggregates up to 1.3" (33mm) of precipitation.

What month has the most sunshine in Mainland?

July has the most sunshine of the year, with an average of 10.7h of sunshine.

What is the driest month in Mainland?

September is the month with the least rainfall. Rain falls for 9.4 days and accumulates 0.59" (15mm) of precipitation.

What is the month with the shortest days in Mainland?

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

Average temperature
Mainland, PA

Average temperature - Mainland, PA

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (35.6°F).

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure
Mainland, PA

Average pressure - Mainland, 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
Mainland, PA

Average wind speed - Mainland, PA

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity
Mainland, PA

Average humidity - Mainland, PA

The months with the highest relative humidity are February, October and December (79%).
The months with the lowest relative humidity are April, July and August (73%).

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Average rainfall
Mainland, PA

Average rainfall - Mainland, PA

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.59").

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Average rainfall days
Mainland, PA

Average rainfall days - Mainland, PA

The month with the highest number of rainy days is July (13.8 days).
The months with the least rainy days are January and February (6.3 days).

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Average snowfall
Mainland, PA

Average snowfall - Mainland, PA

The month with the highest snowfall is March (1.02").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Mainland, PA

Average snowfall days - Mainland, PA

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Mainland, PA

Average daylight / Average sunshine - Mainland, PA

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 month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days
Mainland, PA

Average sunshine days - Mainland, PA

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (13.9 days).

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Average UV index
Mainland, PA

Average UV index - Mainland, PA

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Mainland, PA

Average visibility - Mainland, PA

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

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Mainland, Pennsylvania, USA

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