Climate and monthly weather forecast
Brentwood, PA

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Weather in January

January, the same as December, is an icy winter month in Brentwood, Pennsylvania, with an average temperature varying between 33.4°F (0.8°C) and 20.8°F (-6.2°C). Temperature records mark January as the coldest month, with highs averaging 33.4°F (0.8°C) and lows at 20.8°F (-6.2°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Brentwood, Pennsylvania, with an average temperature ranging between max 37.8°F (3.2°C) and min 23.4°F (-4.8°C). February ushers in an average high-temperature of a still wintry 37.8°F (3.2°C), aligning closely with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Brentwood, Pennsylvania, with an average temperature fluctuating between 47.8°F (8.8°C) and 31.5°F (-0.3°C). As February transitions into March, a change in temperatures is observed, with average highs moving from a cold 37.8°F (3.2°C) to a chilly 47.8°F (8.8°C). Weather in March »

Weather in April

April in Brentwood, Pennsylvania, is a moderate spring month, with an average temperature ranging between min 41.7°F (5.4°C) and max 60.6°F (15.9°C). April brings a temperature change, with average high-temperatures moving from March's chilly 47.8°F (8.8°C) to a refreshing 60.6°F (15.9°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Brentwood, Pennsylvania, with an average temperature fluctuating between 51.4°F (10.8°C) and 72.3°F (22.4°C). Entering May, Brentwood sees a temperature rise, with the average high-temperature advancing from April's mild 60.6°F (15.9°C) to a pleasant 72.3°F (22.4°C). Weather in May »

Weather in June

June, the first month of the summer in Brentwood, is a warm month, with an average temperature fluctuating between 79.3°F (26.3°C) and 58.6°F (14.8°C). June sees a marginal temperature increase, moving from a pleasant 72.3°F (22.4°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Brentwood, Pennsylvania, is another warm summer month, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 83.8°F (28.8°C). Brentwood's temperatures peak on average in July, reaching 83.8°F (28.8°C) at their highest and 63°F (17.2°C) at their lowest. July's average heat index is appraised at a hot 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Brentwood, Pennsylvania, with an average temperature varying between 61.2°F (16.2°C) and 82.2°F (27.9°C). Brentwood marks the start of August with an average high-temperature of a still warm 82.2°F (27.9°C), hinting at a slight fluctuation from July's 83.8°F (28.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Brentwood, Pennsylvania, with an average temperature fluctuating between 75.7°F (24.3°C) and 55.9°F (13.3°C). With the onset of September, the average high-temperature subtly recedes from August's warm 82.2°F (27.9°C) to a still moderately hot 75.7°F (24.3°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Brentwood, Pennsylvania, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 62.1°F (16.7°C). The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 75.7°F (24.3°C) to a refreshing 62.1°F (16.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Brentwood, Pennsylvania, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 49.3°F (9.6°C). The commencement of November involves a temperature shift, with the average high-temperature dropping from a refreshing 62.1°F (16.7°C) in October to a chilly 49.3°F (9.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Brentwood, Pennsylvania, with an average temperature varying between 28.2°F (-2.1°C) and 39.7°F (4.3°C). The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a chilly 49.3°F (9.6°C) in November to a cold 39.7°F (4.3°C). Weather in December »
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

With average high and low temperatures of 33.4°F (0.8°C) and 20.8°F (-6.2°C) respectively, January is Brentwood's coldest month.

What are the most humid months?

January and February, with an average relative humidity of 84%, are most humid months.

How much does it rain?

In Brentwood, during the entire year, the rain falls for 164 days and collects up to 26.89" (683mm) of precipitation.

When does it snow?

Months with snowfall are January through April, October through December.

What is the snowiest month?

The month with the most snowfall in Brentwood is January, when snow falls for 16.3 days and typically aggregates up to 3.46" (88mm) of snow.

How much does it snow?

In Brentwood, during the entire year, snow falls for 53.3 days and aggregates up to 13.27" (337mm) of snow.

What is the month with the least sunshine?

With an average of 2.9h of sunshine, January has the least sunshine of the year.

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 rainiest month?

May is the month with the most rainfall. Rain falls for 18.4 days and accumulates 3.07" (78mm) of precipitation.

When it does not snow?

In Brentwood, snow does not fall in May 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 are the months with the highest UV index in Brentwood?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What is the warmest month in Brentwood?

In Brentwood, the peak average temperatures are observed in July, with a high of 83.8°F (28.8°C) and a low of 63°F (17.2°C).

What is the least humid month in Brentwood?

With an average relative humidity of 73%, August is the least humid month.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 10.1h of sunshine.

What is the driest month?

The month with the least rainfall in Brentwood is November, when the rain falls for 10 days and typically collects 1.61" (41mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

When is the lowest UV index?

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

Average temperature
Brentwood, PA

Average temperature - Brentwood, PA

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure
Brentwood, PA

Average pressure - Brentwood, PA

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Brentwood, PA

Average wind speed - Brentwood, PA

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity
Brentwood, PA

Average humidity - Brentwood, PA

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (73%).

Average rainfall
Brentwood, PA

Average rainfall - Brentwood, PA

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days
Brentwood, PA

Average rainfall days - Brentwood, PA

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).

Average snowfall
Brentwood, PA

Average snowfall - Brentwood, PA

The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Brentwood, PA

Average snowfall days - Brentwood, PA

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Brentwood, PA

Average daylight / Average sunshine - Brentwood, 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 18min).

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days
Brentwood, PA

Average sunshine days - Brentwood, PA

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.5 days).

Average visibility
Brentwood, PA

Average visibility - Brentwood, PA

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

Brentwood, Pennsylvania, USA

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