Climate and monthly weather forecast
Monaca, PA

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Weather in January

January, the same as December, is a wintry winter month in Monaca, Pennsylvania, with an average temperature fluctuating between 19.8°F (-6.8°C) and 32.5°F (0.3°C). January, noted for its average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 19.8°F (-6.8°C), is considered the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Monaca, is also an icy month, with temperature in the range of an average high of 36.9°F (2.7°C) and an average low of 21.9°F (-5.6°C). February's advent notes a subtle adjustment in average high-temperature to a still wintry 36.9°F (2.7°C) from January. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Monaca, Pennsylvania, with an average temperature varying between 30.2°F (-1°C) and 46.9°F (8.3°C). March's arrival brings a change in high-temperatures, moving from a cold 36.9°F (2.7°C) in February to a frosty 46.9°F (8.3°C). Weather in March »

Weather in April

April in Monaca, Pennsylvania, is a refreshing spring month, with temperature in the range of an average high of 59.5°F (15.3°C) and an average low of 39.9°F (4.4°C). As April arrives, a rise in the average high-temperature is observed, moving from a chilly 46.9°F (8.3°C) in March to a refreshing 59.5°F (15.3°C). Weather in April »

Weather in May

May, the last month of the spring in Monaca, is an agreeable month, with an average temperature varying between 71.2°F (21.8°C) and 50.2°F (10.1°C). May's arrival brings a change in high-temperatures, moving from a moderate 59.5°F (15.3°C) in April to an agreeable 71.2°F (21.8°C). Weather in May »

Weather in June

June, the first month of the summer in Monaca, is a moderately hot month, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 56.8°F (13.8°C). Monaca's weather shows a minor temperature rise with the arrival of June, moving from a pleasant 71.2°F (21.8°C) in May to a moderately hot 78.3°F (25.7°C). Weather in June »

Weather in July

July, like June, in Monaca, Pennsylvania, is another warm summer month, with an average temperature ranging between min 61.3°F (16.3°C) and max 82.8°F (28.2°C). Monaca's temperature records reveal July as the warmest month, marked by average highs of 82.8°F (28.2°C) and lows of 61.3°F (16.3°C). The heat index for July is calculated to be a tropical 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Monaca, is also a moderately hot month, with an average temperature fluctuating between 81.1°F (27.3°C) and 59.5°F (15.3°C). As July transitions into August, the average high-temperature rests at a still moderately hot 81.1°F (27.3°C), maintaining a close resemblance to the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Monaca, Pennsylvania, with an average temperature varying between 54.7°F (12.6°C) and 74.7°F (23.7°C). In Monaca, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 81.1°F (27.3°C) to a still moderately hot 74.7°F (23.7°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Monaca, Pennsylvania, with an average temperature fluctuating between 45.1°F (7.3°C) and 61.3°F (16.3°C). With the onset of October, Monaca experiences a modest temperature adjustment, with the average high-temperature receding from a moderately hot 74.7°F (23.7°C) in September to a comfortable 61.3°F (16.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Monaca, Pennsylvania, with an average temperature varying between 48.6°F (9.2°C) and 33.4°F (0.8°C). In Monaca, entering November brings a temperature decrement, reducing from October's enjoyable 61.3°F (16.3°C) to a frosty 48.6°F (9.2°C). Weather in November »

Weather in December

December, the first month of the winter in Monaca, is also an icy month, with an average temperature fluctuating between 38.5°F (3.6°C) and 27.5°F (-2.5°C). A change in temperatures is noted as November gives way to December, with average highs reducing from a frosty 48.6°F (9.2°C) to a wintry 38.5°F (3.6°C). Weather in December »

Frequently asked questions

What is the coldest month?

January, recording an average high temperature of 32.5°F (0.3°C) and a low temperature of 19.8°F (-6.8°C), is Monaca's coldest month.

How much does it rain?

In Monaca, during the entire year, the rain falls for 168.7 days and collects up to 21.22" (539mm) 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 17.3 days and typically aggregates up to 3.11" (79mm) of snow.

How many days does it snow?

In Monaca, during the entire year, snow falls for 60.6 days and aggregates up to 11.93" (303mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 2.9h of sunshine.

What is the most humid month?

With an average relative humidity of 86%, February is the most humid month.

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 are the least humid months?

The months with the lowest humidity are April, July and August, with an average relative humidity of 77%.

When it does not snow?

May through September are months without snowfall.

What is the wettest month?

The month with the most rainfall is June, when the rain falls for 16.1 days and typically aggregates up to 2.32" (59mm) of precipitation.

When are the longest days?

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

What is the month with the highest UV index?

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

What month is the hottest in Monaca?

July stands out as Monaca's warmest month, with an average high-temperature of 82.8°F (28.2°C) and a low-temperature of 61.3°F (16.3°C).

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.2h of sunshine.

What is the driest month?

The month with the least rainfall is November, when the rain falls for 10.8 days and typically collects 1.1" (28mm) 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 Monaca, with an average maximum UV index of 1.

Average temperature
Monaca, PA

Average temperature - Monaca, PA

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure
Monaca, PA

Average pressure - Monaca, PA

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Monaca, PA

Average wind speed - Monaca, PA

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity
Monaca, PA

Average humidity - Monaca, PA

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall
Monaca, PA

Average rainfall - Monaca, PA

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is November (1.1").

Average rainfall days
Monaca, PA

Average rainfall days - Monaca, PA

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (10 days).

Average snowfall
Monaca, PA

Average snowfall - Monaca, PA

The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Monaca, PA

Average snowfall days - Monaca, PA

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Monaca, PA

Average daylight / Average sunshine - Monaca, 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 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days
Monaca, PA

Average sunshine days - Monaca, PA

The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is February (8.3 days).

Monaca, Pennsylvania, USA

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