Climate and monthly weather forecast
Mercersville, MD

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Weather in January

January, the same as December, is an icy winter month in Mercersville, Maryland, with an average temperature ranging between min 23.4°F (-4.8°C) and max 37°F (2.8°C). January, with its high-temperature average of 37°F (2.8°C) and a low-temperature average of 23.4°F (-4.8°C), is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Mercersville, Maryland, with an average temperature fluctuating between 41.5°F (5.3°C) and 25.9°F (-3.4°C). The transition from January to February brings an average high-temperature of a still wintry 41.5°F (5.3°C), barely different from January's 37°F (2.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Mercersville, Maryland, with an average temperature fluctuating between 50.2°F (10.1°C) and 32.9°F (0.5°C). Mercersville's weather in March shows a minor rise in the average high-temperature, moving slightly up from February's cold 41.5°F (5.3°C) to a fresh 50.2°F (10.1°C). Weather in March »

Weather in April

April is a refreshing spring month in Mercersville, Maryland, with an average temperature fluctuating between 42.4°F (5.8°C) and 62.6°F (17°C). As March gives way to April, the average high-temperature displays an increase, moving from a fresh 50.2°F (10.1°C) to a comfortable 62.6°F (17°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Mercersville, Maryland, with an average temperature fluctuating between 72.3°F (22.4°C) and 52.3°F (11.3°C). The beginning of May signals a rise in the average high-temperature, moving from a refreshing 62.6°F (17°C) in April to a pleasant 72.3°F (22.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Mercersville, Maryland, with an average temperature varying between 59.4°F (15.2°C) and 80.4°F (26.9°C). June marks a minor ascent in the average high-temperature, adjusting from May's agreeable 72.3°F (22.4°C) to a warm 80.4°F (26.9°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Mercersville, Maryland, with an average temperature varying between 85.6°F (29.8°C) and 64.2°F (17.9°C). With its high average temperature of 85.6°F (29.8°C) and a low of 64.2°F (17.9°C), July is regarded as the warmest month. The heat index in July is estimated at a fiery hot 96.8°F (36°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Mercersville, Maryland, with an average temperature varying between 83.3°F (28.5°C) and 62.6°F (17°C). The advent of August reveals an average high-temperature of a still moderately hot 83.3°F (28.5°C), showing minimal difference from the prior month. Weather in August »

Weather in September

September, the first month of the autumn in Mercersville, is still a warm month, with an average temperature ranging between min 56.8°F (13.8°C) and max 76.1°F (24.5°C). The advent of September brings a slight shift in average high-temperature, moving from 83.3°F (28.5°C) in August to a still warm 76.1°F (24.5°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Mercersville, Maryland, with an average temperature varying between 63.9°F (17.7°C) and 46.2°F (7.9°C). October suggests a modest reduction in the average high-temperature, shifting from a moderately hot 76.1°F (24.5°C) in September to a comfortable 63.9°F (17.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Mercersville, Maryland, with an average temperature ranging between max 51.6°F (10.9°C) and min 35.2°F (1.8°C). The onset of November entails a temperature shift, as the average high-temperature decreases from a refreshing 63.9°F (17.7°C) in October to a fresh 51.6°F (10.9°C). Weather in November »

Weather in December

December, the first month of the winter in Mercersville, is also a wintry month, with an average temperature varying between 42.3°F (5.7°C) and 30.2°F (-1°C). Mercersville in December experiences a subtle temperature decline, with average high-temperatures reducing from a cool 51.6°F (10.9°C) in November to a wintry 42.3°F (5.7°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Mercersville?

Mercersville, Maryland, records the coldest temperatures in January, averaging a high of 37°F (2.8°C) and a low of 23.4°F (-4.8°C).

What is the driest month in Mercersville?

January is the month with the least rainfall in Mercersville, Maryland. Rain falls for 9.6 days and accumulates 1.97" (50mm) of precipitation.

How many days does it rain in Mercersville?

In Mercersville, Maryland, during the entire year, the rain falls for 162.4 days and collects up to 30.16" (766mm) of precipitation.

When does it snow in Mercersville?

January through April, October through December are months with snowfall in Mercersville.

When does it snow the most in Mercersville?

January is the month with the most snowfall. Snow falls for 7.8 days and accumulates 4.72" (120mm) of snow.

How much does it snow in Mercersville?

Throughout the year, in Mercersville, there are 24.4 snowfall days, and 14.29" (363mm) of snow is accumulated.

What is the month with the lowest UV index in Mercersville?

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

What is the month with the least sunshine in Mercersville?

The month with the least sunshine in Mercersville is February, with an average of 4.7h of sunshine.

When is Daylight Saving Time (DST) in Mercersville?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Mercersville, 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 most humid months in Mercersville?

The months with the highest humidity in Mercersville are May, October and December, with an average relative humidity of 79%.

When it does not snow in Mercersville?

May through September are months without snowfall.

When is the highest UV index in Mercersville?

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

When are the longest days in Mercersville?

The month with the longest days in Mercersville is June, with an average of 14h and 54min of daylight.

What is the warmest month in Mercersville?

Mercersville, Maryland, records the warmest temperatures in July, averaging a high of 85.6°F (29.8°C) and a low of 64.2°F (17.9°C).

What is the least humid month in Mercersville?

With an average relative humidity of 74%, July is the least humid month in Mercersville, Maryland.

What is the wettest month in Mercersville?

The month with the most rainfall in Mercersville, Maryland, is July, when the rain falls for 16.2 days and typically aggregates up to 3.27" (83mm) of precipitation.

What month has the most sunshine in Mercersville?

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

What is the month with the shortest days in Mercersville?

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

Average temperature
Mercersville, MD

Average temperature - Mercersville, MD

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37°F).

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure
Mercersville, MD

Average pressure - Mercersville, MD

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed
Mercersville, MD

Average wind speed - Mercersville, MD

The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity
Mercersville, MD

Average humidity - Mercersville, MD

The months with the highest relative humidity are May, October and December (79%).
The month with the lowest relative humidity is July (74%).

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Average rainfall
Mercersville, MD

Average rainfall - Mercersville, MD

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (1.97").

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Average rainfall days
Mercersville, MD

Average rainfall days - Mercersville, MD

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall
Mercersville, MD

Average snowfall - Mercersville, MD

The month with the highest snowfall is January (4.72").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Mercersville, MD

Average snowfall days - Mercersville, MD

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Mercersville, MD

Average daylight / Average sunshine - Mercersville, MD

The month with the longest days is June (Average daylight: 14h and 54min).
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).

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Average sunshine days
Mercersville, MD

Average sunshine days - Mercersville, MD

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is April (11 days).

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Average UV index
Mercersville, MD

Average UV index - Mercersville, MD

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, November and December (UV index 2).

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Average visibility
Mercersville, MD

Average visibility - Mercersville, MD

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).

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Mercersville, Maryland, USA

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