Climate and monthly weather forecast
Glenshaw, PA

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Weather in January

January, the same as December, is an icy winter month in Glenshaw, Pennsylvania, with an average temperature ranging between max 33.1°F (0.6°C) and min 21°F (-6.1°C). January, with average temperatures reaching a high of 33.1°F (0.6°C) and a low of 21°F (-6.1°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Glenshaw, is also a wintry month, with an average temperature varying between 23.4°F (-4.8°C) and 37.6°F (3.1°C). The commencement of February records an average high-temperature of a still icy 37.6°F (3.1°C), barely varying from January's 33.1°F (0.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Glenshaw, Pennsylvania, with an average temperature ranging between max 47.8°F (8.8°C) and min 31.5°F (-0.3°C). In Glenshaw, the average high-temperature in March increases from a wintry 37.6°F (3.1°C) in February to a frosty 47.8°F (8.8°C). Weather in March »

Weather in April

April in Glenshaw, Pennsylvania, is an enjoyable spring month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 61°F (16.1°C). The shift into April is accompanied by a temperature increase, with the average high-temperature rising from a frosty 47.8°F (8.8°C) in March to a refreshing 61°F (16.1°C). Weather in April »

Weather in May

May, the last month of the spring in Glenshaw, is an agreeable month, with an average temperature fluctuating between 72.1°F (22.3°C) and 51.4°F (10.8°C). Glenshaw's weather shows a temperature rise with the arrival of May, moving from an enjoyable 61°F (16.1°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »

Weather in June

June, the first month of the summer in Glenshaw, is a warm month, with an average temperature ranging between max 79.3°F (26.3°C) and min 58.6°F (14.8°C). As May gives way to June, the average high-temperature displays a slight ascent, adjusting from a pleasant 72.1°F (22.3°C) to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Glenshaw, Pennsylvania, is another warm summer month, with an average temperature varying between 84°F (28.9°C) and 63°F (17.2°C). July is the warmest month, with an average high-temperature of 84°F (28.9°C) and an average low-temperature of 63°F (17.2°C). For July, the heat index is computed to be a hot 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Glenshaw, is another warm month, with an average temperature varying between 82.2°F (27.9°C) and 61.3°F (16.3°C). The transition into August notes an average high-temperature of a still warm 82.2°F (27.9°C), revealing a mild distinction from the 84°F (28.9°C) in July. Weather in August »

Weather in September

September, the first month of the autumn in Glenshaw, is also a moderately hot month, with an average temperature varying between 75.7°F (24.3°C) and 55.9°F (13.3°C). With the commencement of September, Glenshaw records a moderate temperature decline, with the average high easing from August's moderately hot 82.2°F (27.9°C) to a still warm 75.7°F (24.3°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Glenshaw, Pennsylvania, with an average temperature ranging between max 62.2°F (16.8°C) and min 45.5°F (7.5°C). Glenshaw's progression into October includes a drop in the average high-temperature, from a warm 75.7°F (24.3°C) in September to a refreshing 62.2°F (16.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Glenshaw, Pennsylvania, with an average temperature varying between 34.2°F (1.2°C) and 49.1°F (9.5°C). Transition from October to November is accompanied by a temperature drop, with average high-temperatures decreasing from an enjoyable 62.2°F (16.8°C) to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

December, the first month of the winter in Glenshaw, is also an icy month, with an average temperature varying between 39.4°F (4.1°C) and 28.4°F (-2°C). As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 49.1°F (9.5°C) to a wintry 39.4°F (4.1°C). Weather in December »

Frequently asked questions

What month is the coldest?

In Glenshaw, January is the month with the lowest recorded average temperatures, measuring a high of 33.1°F (0.6°C) and a low of 21°F (-6.1°C).

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 Glenshaw, 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.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 14.4 days and accumulates 3.31" (84mm) of snow.

How much does it snow in Glenshaw?

In Glenshaw, during the entire year, snow falls for 47.7 days and aggregates up to 11.77" (299mm) of snow.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 2.8h of sunshine.

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?

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

When are the longest days?

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

What part of the year is the hottest?

July temperatures in Glenshaw tend to peak at an average high of 84°F (28.9°C) and dip to a low of 63°F (17.2°C).

What is the least humid month in Glenshaw?

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

What month has the most sunshine?

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

What is the driest month?

November is the month with the least rainfall. Rain falls for 9.8 days and accumulates 1.54" (39mm) 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.

What is the month with the lowest UV index?

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

Average temperature
Glenshaw, PA

Average temperature - Glenshaw, 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
Glenshaw, PA

Average pressure - Glenshaw, 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
Glenshaw, PA

Average wind speed - Glenshaw, 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
Glenshaw, PA

Average humidity - Glenshaw, 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
Glenshaw, PA

Average rainfall - Glenshaw, 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
Glenshaw, PA

Average rainfall days - Glenshaw, 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
Glenshaw, PA

Average snowfall - Glenshaw, 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
Glenshaw, PA

Average snowfall days - Glenshaw, 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
Glenshaw, PA

Average daylight / Average sunshine - Glenshaw, 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
Glenshaw, PA

Average sunshine days - Glenshaw, 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
Glenshaw, PA

Average visibility - Glenshaw, 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).

Glenshaw, Pennsylvania, USA

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