Climate and monthly weather forecast
Forest Park, PA

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Weather in January

January, like December, in Forest Park, Pennsylvania, is a wintry winter month, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 35.6°F (2°C). The coldest period is January, when temperatures fluctuate between an average high of 35.6°F (2°C) and a low of 23.4°F (-4.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Forest Park, Pennsylvania, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 39°F (3.9°C). The commencement of February notes an average high-temperature of a still wintry 39°F (3.9°C), exhibiting little difference from the previous month. Weather in February »

Weather in March

March, the first month of the spring in Forest Park, is a chilly month, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 32.5°F (0.3°C). The arrival of March brings a soft temperature shift, with the average high-temperature nudging from a wintry 39°F (3.9°C) in February to a frosty 47.8°F (8.8°C). Weather in March »

Weather in April

April in Forest Park, Pennsylvania, is a mild spring month, with an average temperature ranging between max 60.3°F (15.7°C) and min 42.6°F (5.9°C). The start of April brings a shift in the average high-temperature, increasing from March's frosty 47.8°F (8.8°C) to a refreshing 60.3°F (15.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Forest Park, Pennsylvania, with an average temperature varying between 52.7°F (11.5°C) and 70.9°F (21.6°C). May brings a rise in the average high-temperature, transitioning from April's refreshing 60.3°F (15.7°C) to an agreeable 70.9°F (21.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Forest Park, Pennsylvania, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 60.4°F (15.8°C). June's arrival is noted with a slight increase in the average high-temperature, moving from a pleasant 70.9°F (21.6°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Forest Park, Pennsylvania, with an average temperature ranging between max 84.9°F (29.4°C) and min 66.7°F (19.3°C). July, recognised by an average high temperature of 84.9°F (29.4°C) and a low of 66.7°F (19.3°C), is Forest Park's warmest month. The heat index value during July is appraised at a tropical 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Forest Park, Pennsylvania, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 64.9°F (18.3°C). August's arrival shows an average high-temperature of a still warm 82.8°F (28.2°C), hardly different from the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Forest Park, Pennsylvania, with an average temperature ranging between min 57.9°F (14.4°C) and max 76.1°F (24.5°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 82.8°F (28.2°C) in August to a still warm 76.1°F (24.5°C). Weather in September »

Weather in October

October, like September, in Forest Park, Pennsylvania, is another enjoyable autumn month, with an average temperature ranging between min 48.2°F (9°C) and max 63.5°F (17.5°C). Forest Park's October weather shows a moderate shift in high-temperatures, falling from September's moderately hot 76.1°F (24.5°C) to a comfortable 63.5°F (17.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Forest Park, is another cool month, with an average temperature ranging between max 51.4°F (10.8°C) and min 37.4°F (3°C). A subtle decrease in the average high-temperature marks November, falling from October's enjoyable 63.5°F (17.5°C) to a fresh 51.4°F (10.8°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Forest Park, Pennsylvania, with temperature in the range of an average high of 41.9°F (5.5°C) and an average low of 30.9°F (-0.6°C). December suggests a modest reduction in the average high-temperature, shifting from a cool 51.4°F (10.8°C) in November to a cold 41.9°F (5.5°C). Weather in December »
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

Forest Park's coldest weather arrives in January, when temperatures average a high of 35.6°F (2°C) and a low of 23.4°F (-4.8°C).

How much does it rain?

Throughout the year, there are 158.6 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

When does it snow?

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

How many days does it snow?

Throughout the year, there are 24.6 snowfall days, and 10.24" (260mm) of snow is accumulated.

When is the lowest UV index?

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

What is the most humid month?

February and October, with an average relative humidity of 79%, are most humid months.

What is the month with the least sunshine?

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

When does it snow the most in Forest Park?

March is the month with the most snowfall. Snow falls for 4.6 days and accumulates 2.76" (70mm) of snow.

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 is the least humid month?

The least humid month in Forest Park is April, with an average relative humidity of 73%.

When is the highest UV index?

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

When it does not snow?

In Forest Park, snow does not fall in June through September.

When are the longest days?

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

What is the warmest month?

July tends to be the warmest month in Forest Park, with temperatures averaging a daily high of 84.9°F (29.4°C) and a low of 66.7°F (19.3°C).

What is the wettest month?

The month with the most rainfall is July, when the rain falls for 17.3 days and typically aggregates up to 2.87" (73mm) of precipitation.

What month has the most sunshine?

The month with the most sunshine in Forest Park is July, with an average of 10.6h of sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.65" (42mm) of precipitation.

What is the month with the shortest days?

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

Average temperature
Forest Park, PA

Average temperature - Forest Park, PA

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.6°F).

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure
Forest Park, PA

Average pressure - Forest Park, 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).

Average wind speed
Forest Park, PA

Average wind speed - Forest Park, 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).

Average humidity
Forest Park, PA

Average humidity - Forest Park, PA

The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall
Forest Park, PA

Average rainfall - Forest Park, PA

The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days
Forest Park, PA

Average rainfall days - Forest Park, PA

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).

Average snowfall
Forest Park, PA

Average snowfall - Forest Park, PA

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Forest Park, PA

Average snowfall days - Forest Park, PA

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Forest Park, PA

Average daylight / Average sunshine - Forest Park, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days
Forest Park, PA

Average sunshine days - Forest Park, PA

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11 days).

Average UV index
Forest Park, PA

Average UV index - Forest Park, 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).

Average visibility
Forest Park, PA

Average visibility - Forest Park, 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).

Forest Park, Pennsylvania, USA

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