Climate and monthly weather forecast
Mount Washington, PA

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Weather in January

January, the same as December, is a wintry winter month in Mount Washington, Pennsylvania, with an average temperature varying between 21°F (-6.1°C) and 33.1°F (0.6°C). January is the coldest month, exhibiting average temperatures of 33.1°F (0.6°C) at the peak and 21°F (-6.1°C) at the base. Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Mount Washington, Pennsylvania, with an average temperature varying between 23.4°F (-4.8°C) and 37.6°F (3.1°C). Mount Washington's shift from January to February is accompanied by an average high-temperature of a still wintry 37.6°F (3.1°C), a slight deviation from 33.1°F (0.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Mount Washington, Pennsylvania, with an average temperature varying between 31.5°F (-0.3°C) and 47.8°F (8.8°C). Mount Washington's weather in March presents a rise in the average high-temperature, moving from a wintry 37.6°F (3.1°C) in February to a chilly 47.8°F (8.8°C). Weather in March »

Weather in April

April in Mount Washington, Pennsylvania, is an enjoyable spring month, with an average temperature fluctuating between 41.5°F (5.3°C) and 61°F (16.1°C). April's arrival signals a temperature shift, moving from a chilly 47.8°F (8.8°C) in March to a refreshing 61°F (16.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Mount Washington, Pennsylvania, with temperature in the range of an average low of 51.4°F (10.8°C) and an average high of 72.1°F (22.3°C). A rise in the average high-temperature is observed during May, moving from a refreshing 61°F (16.1°C) in April to an agreeable 72.1°F (22.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Mount Washington, Pennsylvania, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 79.3°F (26.3°C). June's arrival coincides with a subtle temperature rise, moving from May's pleasant 72.1°F (22.3°C) to a warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Mount Washington, Pennsylvania, is a moderately hot summer month, with an average temperature varying between 84°F (28.9°C) and 63°F (17.2°C). In Mount Washington, July is identified by the highest average temperatures, reaching a peak of 84°F (28.9°C) and a low of 63°F (17.2°C). July's average heat index is estimated at a tropical 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Mount Washington, Pennsylvania, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 61.3°F (16.3°C). The commencement of August records an average high-temperature of a still warm 82.2°F (27.9°C), barely varying from July's 84°F (28.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Mount Washington, Pennsylvania, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 75.7°F (24.3°C). The average high-temperature slightly decreases in September, shifting from 82.2°F (27.9°C) in August to a still warm 75.7°F (24.3°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Mount Washington, Pennsylvania, with an average temperature ranging between min 45.5°F (7.5°C) and max 62.2°F (16.8°C). October's onset brings a slight change in high-temperatures, falling from a warm 75.7°F (24.3°C) in September to an enjoyable 62.2°F (16.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Mount Washington, Pennsylvania, with an average temperature varying between 49.1°F (9.5°C) and 34.2°F (1.2°C). In the transition to November, Mount Washington observes a drop in the average high-temperature, moving from a comfortable 62.2°F (16.8°C) in October to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

December, the first month of the winter in Mount Washington, is also an icy month, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 28.4°F (-2°C). Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a frosty 49.1°F (9.5°C) to an icy 39.4°F (4.1°C). Weather in December »
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

The coldest period is January, when temperatures fluctuate between an average high of 33.1°F (0.6°C) and a low of 21°F (-6.1°C).

What is the most humid month?

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

How many days does it rain?

In Mount Washington, during the entire year, the rain falls for 163.6 days and collects up to 26.93" (684mm) of precipitation.

When does it snow?

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

When does it snow the most?

The month with the most snowfall is January, when snow falls for 14.4 days and typically aggregates up to 3.31" (84mm) of snow.

How much does it snow?

Throughout the year, there are 47.7 snowfall days, and 11.77" (299mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 2.8h 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 wettest month?

The month with the most rainfall is May, when the rain falls for 18.9 days and typically aggregates up to 3.07" (78mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

What is the month with the highest UV index in Mount Washington?

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

When are the longest days?

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

What part of the year is the hottest?

In Mount Washington, July is the month with the highest recorded average temperatures, measuring a high of 84°F (28.9°C) and a low of 63°F (17.2°C).

What is the least humid month?

July and August, with an average relative humidity of 73%, are the least humid months.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.1h of sunshine.

What is the driest month?

The month with the least rainfall is November, when the rain falls for 9.8 days and typically collects 1.54" (39mm) of precipitation.

What is the month with the shortest days?

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

When is the lowest UV index?

December is the month with the lowest UV index in Mount Washington, Pennsylvania, with an average maximum UV index of 1.

Average temperature
Mount Washington, PA

Average temperature - Mount Washington, PA

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.1°F).

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average pressure
Mount Washington, PA

Average pressure - Mount Washington, 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
Mount Washington, PA

Average wind speed - Mount Washington, PA

The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity
Mount Washington, PA

Average humidity - Mount Washington, PA

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

Average rainfall
Mount Washington, PA

Average rainfall - Mount Washington, PA

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.54").

Average rainfall days
Mount Washington, PA

Average rainfall days - Mount Washington, PA

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (8.9 days).

Average snowfall
Mount Washington, PA

Average snowfall - Mount Washington, PA

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Mount Washington, PA

Average snowfall days - Mount Washington, PA

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Mount Washington, PA

Average daylight / Average sunshine - Mount Washington, 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 48min).

Average sunshine days
Mount Washington, PA

Average sunshine days - Mount Washington, PA

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.6 days).

Average visibility
Mount Washington, PA

Average visibility - Mount Washington, 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).

Mount Washington, Pennsylvania, USA

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