Mendham
New Jersey, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Mendham, NJ

January, like December, in Mendham, New Jersey, is a wintry winter month, with average temperature ranging between min 22.3°F (-5.4°C) and max 35.1°F (1.7°C). January is the coldest month, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.3°F (-5.4°C). Weather in January »

The last month of the winter, February, is also a wintry month in Mendham, New Jersey, with average temperature fluctuating between 23.7°F (-4.6°C) and 38.3°F (3.5°C). In Mendham, New Jersey, the average high-temperature in February is practically the same as in January - a still wintry 38.3°F (3.5°C). Weather in February »

March, the first month of the spring, in Mendham, is a frosty month, with average temperature fluctuating between 46.6°F (8.1°C) and 31.5°F (-0.3°C). In March, the average high-temperature marginally rises, from a wintry 38.3°F (3.5°C) in February, to a chilly 46.6°F (8.1°C). Weather in March »

April in Mendham, New Jersey, is a moderate spring month, with average temperature fluctuating between 58.6°F (14.8°C) and 41.5°F (5.3°C). In Mendham, the average high-temperature in April rises, from a frosty 46.6°F (8.1°C) in March, to a mild 58.6°F (14.8°C). Weather in April »

May, the last month of the spring, in Mendham, is a pleasant month, with average temperature fluctuating between 69.6°F (20.9°C) and 50.9°F (10.5°C). In Mendham, the average high-temperature rises, from a mild 58.6°F (14.8°C) in April, to a pleasant 69.6°F (20.9°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Mendham, New Jersey, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 77.5°F (25.3°C). In Mendham, the average high-temperature in June slightly increases, from a pleasant 69.6°F (20.9°C) in May, to a warm 77.5°F (25.3°C). Weather in June »

July, the same as June, is another warm summer month in Mendham, New Jersey, with average temperature fluctuating between 83.7°F (28.7°C) and 64.8°F (18.2°C). The warmest month is July, with an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 64.8°F (18.2°C). The average heat index is evaluated at a hot 91.6°F (33.1°C). Weather in July »

The last month of the summer, August, is another warm month in Mendham, New Jersey, with average temperature varying between 81.3°F (27.4°C) and 63°F (17.2°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 81.3°F (27.4°C). Weather in August »

September, the first month of the autumn, in Mendham, is also a moderately hot month, with temperature in the range of an average high of 74.5°F (23.6°C) and an average low of 56.8°F (13.8°C). In Mendham, the average high-temperature marginally drops, from a moderately hot 81.3°F (27.4°C) in August, to a still warm 74.5°F (23.6°C). Weather in September »

October, like September, in Mendham, New Jersey, is another comfortable autumn month, with average temperature varying between 62.2°F (16.8°C) and 47.1°F (8.4°C). In October, the average high-temperature decreases, from a moderately hot 74.5°F (23.6°C) in September, to an enjoyable 62.2°F (16.8°C). Weather in October »

November, the last month of the autumn, in Mendham, is also a fresh month, with temperature in the range of an average low of 36°F (2.2°C) and an average high of 50.4°F (10.2°C). In Mendham, the average high-temperature in November drops, from an enjoyable 62.2°F (16.8°C) in October, to a fresh 50.4°F (10.2°C). Weather in November »

December, the first month of the winter, in Mendham, is also a wintry month, with average temperature ranging between max 41°F (5°C) and min 29.3°F (-1.5°C). In December, the average high-temperature decreases, from a fresh 50.4°F (10.2°C) in November, to a wintry 41°F (5°C). Weather in December »

What is the coldest month in Mendham?

January is the coldest month in Mendham, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.3°F (-5.4°C).

How many days does it rain in Mendham?

In Mendham, New Jersey, during the entire year, the rain falls for 162.6 days and collects up to 33.11" (841mm) of precipitation.

When does it snow in Mendham?

January through May, October through December are months with snowfall.

How many days does it snow in Mendham?

In Mendham, New Jersey, during the entire year, snow falls for 28.5 days, and aggregates up to 14.49" (368mm) of snow.

What are the months with the lowest UV index in Mendham?

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

What are the most humid months in Mendham?

Months with the highest humidity in Mendham are February and October, with an average relative humidity of 80%.

What is the month with the least sunshine in Mendham?

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

What is the snowiest month in Mendham?

March is the month with the most snowfall in Mendham, New Jersey. Snow falls for 5.8 days and accumulates 4.49" (114mm) of snow.

What is the least humid month in Mendham?

With an average relative humidity of 75%, April is the least humid month.

When it does not snow in Mendham?

In Mendham snow does not fall in June through September.

When are the longest days in Mendham?

The month with the longest days is June, with an average of 15.1h of daylight.

When is the highest UV index in Mendham?

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

What is the warmest month in Mendham?

With an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 64.8°F (18.2°C), July is the warmest month in Mendham, New Jersey.

What month has the most sunshine in Mendham?

July has the most sunshine of the year, with an average of 10.5h of sunshine.

What is the driest month in Mendham?

The month with the least rainfall in Mendham is September when the rain falls for 12.9 days and typically collects 1.85" (47mm) of precipitation.

What is the rainiest month in Mendham?

The month with the most rainfall in Mendham, New Jersey, is December when the rain falls for 10.9 days and typically aggregates up to 3.39" (86mm) of precipitation.

What is the month with the shortest days in Mendham?

With an average of 9.3h of daylight, December has the shortest days of the year.
Average humidity - Mendham, NJ
Average rainfall - Mendham, NJ
Average rainfall days - Mendham, NJ

Months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (8.9 days).

Average snowfall - Mendham, NJ
Average snowfall days - Mendham, NJ

The month with the highest number of snowfall days is January (8.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine - Mendham, NJ

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average UV index - Mendham, NJ