Climate and monthly weather forecast
Mount Joy, NJ

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Weather in January

January, like December, in Mount Joy, New Jersey, is another cold winter month, with an average temperature ranging between max 34.3°F (1.3°C) and min 21.6°F (-5.8°C). In Mount Joy, January is the month with the lowest recorded average temperatures, measuring a high of 34.3°F (1.3°C) and a low of 21.6°F (-5.8°C). Weather in January »

Weather in February

February, the last month of the winter in Mount Joy, is also an icy month, with temperature in the range of an average low of 23.5°F (-4.7°C) and an average high of 37.9°F (3.3°C). February's presence marks an average high-temperature of a still wintry 37.9°F (3.3°C), subtly varied from January's 34.3°F (1.3°C). Weather in February »

Weather in March

March, the first month of the spring in Mount Joy, is a frosty month, with an average temperature ranging between max 46.2°F (7.9°C) and min 30.6°F (-0.8°C). Mount Joy's transition into March brings a slight rise in the average high-temperature, moving from a cold 37.9°F (3.3°C) in February to a frosty 46.2°F (7.9°C). Weather in March »

Weather in April

April in Mount Joy, New Jersey, is a moderate spring month, with an average temperature ranging between max 58.6°F (14.8°C) and min 40.6°F (4.8°C). Mount Joy's April weather brings a rise in high-temperatures, moving from a chilly 46.2°F (7.9°C) in March to a moderate 58.6°F (14.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Mount Joy, New Jersey, with an average temperature fluctuating between 69.6°F (20.9°C) and 50.5°F (10.3°C). With the onset of May, Mount Joy's average high-temperature sees a rise, moving from April's moderate 58.6°F (14.8°C) to a pleasant 69.6°F (20.9°C). Weather in May »

Weather in June

June, the first month of the summer in Mount Joy, is a warm month, with an average temperature varying between 57.7°F (14.3°C) and 77.5°F (25.3°C). The start of June brings a subtle rise in the average high-temperature, moving from a pleasant 69.6°F (20.9°C) in May to a warm 77.5°F (25.3°C). Weather in June »

Weather in July

July, like June, in Mount Joy, New Jersey, is a moderately hot summer month, with an average temperature fluctuating between 83.3°F (28.5°C) and 63.9°F (17.7°C). Mount Joy's July weather, with an average high temperature of 83.3°F (28.5°C) and an average low temperature of 63.9°F (17.7°C), tends to be the warmest of the year. In July, the heat index is estimated at a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Mount Joy, is also a moderately hot month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 61.5°F (16.4°C). As Mount Joy welcomes August, the average high-temperature is noted at a still moderately hot 81.1°F (27.3°C), closely aligning with the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Mount Joy, New Jersey, with an average temperature ranging between max 74.5°F (23.6°C) and min 55.2°F (12.9°C). Transitioning from August to September involves a subtle drop in average high-temperatures, descending from 81.1°F (27.3°C) to a still moderately hot 74.5°F (23.6°C). Weather in September »

Weather in October

October, like September, in Mount Joy, New Jersey, is another enjoyable autumn month, with an average temperature varying between 46.2°F (7.9°C) and 62.1°F (16.7°C). The shift from September to October involves a decrease in the average high-temperature, from a warm 74.5°F (23.6°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 cool month in Mount Joy, New Jersey, with an average temperature fluctuating between 50°F (10°C) and 35.4°F (1.9°C). November's onset corresponds with a shift in the average high-temperature, moving from a comfortable 62.1°F (16.7°C) in October to a fresh 50°F (10°C). Weather in November »

Weather in December

December, the first month of the winter in Mount Joy, is still a cold month, with an average temperature ranging between max 40.3°F (4.6°C) and min 28.9°F (-1.7°C). In Mount Joy, entering December brings a temperature decrement, reducing from November's cool 50°F (10°C) to an icy 40.3°F (4.6°C). Weather in December »
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Frequently asked questions

What are the coldest months in Mount Joy?

Mount Joy's coldest month, January, generally records average temperatures ranging from a high of 34.3°F (1.3°C) to a low of 21.6°F (-5.8°C).

How many days does it rain in Mount Joy?

In Mount Joy, during the entire year, the rain falls for 124.4 days and collects up to 13.39" (340mm) of precipitation.

When does it snow in Mount Joy?

January through April, November and December are months with snowfall in Mount Joy, New Jersey.

How many days does it snow in Mount Joy?

In Mount Joy, during the entire year, snow falls for 22 days and aggregates up to 5" (127mm) of snow.

What are the months with the lowest UV index in Mount Joy?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mount Joy, New Jersey.

What is the most humid month in Mount Joy?

February is the most humid month in Mount Joy, New Jersey, with an average relative humidity of 81%.

When does it snow the most in Mount Joy?

The month with the most snowfall is February, when snow falls for 6.8 days and typically aggregates up to 1.42" (36mm) of snow.

What is the month with the least sunshine in Mount Joy?

With an average of 4.6h of sunshine, February has the least sunshine of the year.

When is Daylight Saving Time (DST) in Mount Joy?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Mount Joy, 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 least humid month in Mount Joy?

The months with the lowest humidity are April and July, with an average relative humidity of 76%.

When it does not snow in Mount Joy?

May through October are months without snowfall in Mount Joy.

When are the longest days in Mount Joy?

June has the longest days of the year in Mount Joy, New Jersey, with an average of 15h and 0min of daylight.

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

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

What month is the hottest in Mount Joy?

Mount Joy's warmest temperatures are experienced in July, with average high temperatures of 83.3°F (28.5°C) and lows of 63.9°F (17.7°C).

What is the wettest month in Mount Joy?

July is the month with the most rainfall in Mount Joy, New Jersey. Rain falls for 12.8 days and accumulates 1.65" (42mm) of precipitation.

What month has the most sunshine in Mount Joy?

With an average of 10.4h of sunshine, July has the most sunshine of the year.

What is the driest month in Mount Joy?

September is the month with the least rainfall in Mount Joy. Rain falls for 8.9 days and accumulates 0.71" (18mm) of precipitation.

What is the month with the shortest days in Mount Joy?

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

Average temperature
Mount Joy, NJ

Average temperature - Mount Joy, NJ

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.3°F).

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure
Mount Joy, NJ

Average pressure - Mount Joy, NJ

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Mount Joy, NJ

Average wind speed - Mount Joy, NJ

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity
Mount Joy, NJ

Average humidity - Mount Joy, NJ

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).

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Average rainfall
Mount Joy, NJ

Average rainfall - Mount Joy, NJ

The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is September (0.71").

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Average rainfall days
Mount Joy, NJ

Average rainfall days - Mount Joy, NJ

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall
Mount Joy, NJ

Average snowfall - Mount Joy, NJ

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Mount Joy, NJ

Average snowfall days - Mount Joy, NJ

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Mount Joy, NJ

Average daylight / Average sunshine - Mount Joy, NJ

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 July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Mount Joy, NJ

Average sunshine days - Mount Joy, NJ

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (14 days).

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Average UV index
Mount Joy, NJ

Average UV index - Mount Joy, NJ

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Mount Joy, NJ

Average visibility - Mount Joy, NJ

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

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Mount Joy, New Jersey, USA

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