May weather forecast
Morristown, NJ

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Downtown Morristown, New Jersey, in a perfect aerial shot of the rest of the city, the green tree cover, and the stunning colorful clear sky above
Downtown Morristown, New Jersey, in a perfect aerial shot of the rest of the city, the green tree cover, and the stunning colorful clear sky above

Weather in May

In May, the city see further elements of pleasant spring weather. Regular rainfall and an increase in relative humidity from 74% in April to 77% in May promotes lush greeneries. Temperature commences its upward trajectory, indicating the incoming summer heat. The increase in sunlight and warmth, frames an inviting sight for outdoor aficionados. Evenings remain pleasant, a perfect set-up for enjoying the bountiful lush parks around.

Temperature

May in Morristown brings a temperature change, with average high-temperatures moving from April's refreshing 58.5°F (14.7°C) to a pleasant 69.1°F (20.6°C). Throughout the month of May, Morristown observes an average nighttime temperature of 51.4°F (10.8°C).

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Morristown, in May, during 17.3 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. In Morristown, during the entire year, the rain falls for 164.2 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Morristown, New Jersey. May is the last month it regularly snows. During 0.1 snowfall days, in May, Morristown aggregates 0.24" (6mm) of snow. Throughout the year, there are 26 snowfall days, and 11.61" (295mm) of snow is accumulated.

Daylight

In Morristown, the average length of the day in May is 14h and 29min.
On the first day of the month, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:22 pm EDT.

Sunshine

The average sunshine in May in Morristown is 8.4h.

UV index

In Morristown, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 during May translates into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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Frequently asked questions

What is the average May temperature in Morristown?

Morristown in May has an average high-temperature of 69.1°F (20.6°C) and an average low-temperature of 51.4°F (10.8°C).

What is the average humidity in May in Morristown?

The average relative humidity in May in Morristown is 77%.

How many days does it rain in May in Morristown?

In May, in Morristown, the rain falls for 17.3 days. Throughout May, 2.91" (74mm) of precipitation is accumulated.

What is the last month it snows in Morristown?

May is the last month it regularly snows in Morristown. During 0.1 snowfall days, in May, Morristown aggregates 0.24" (6mm) of snow.

What is the average length of the day in May in Morristown?

In Morristown, the average day length in May is 14h and 29min.

When are sunrise and sunset in May in Morristown?

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of the month, in Morristown, New Jersey, sunrise is at 5:28 am and sunset at 8:22 pm EDT.

How long on average sun shines in May in Morristown?

In May, the average sunshine duration in Morristown is 8.4h.

What is the UV index intensity in May in Morristown?

In May, the average daily maximum UV index in Morristown is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Morristown, NJ

Average temperature in May - Morristown, NJ
  • Average high temperature in May: 69.1°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in May
Morristown, NJ

Average pressure in May - Morristown, NJ
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Morristown, NJ

Average wind speed in May - Morristown, NJ
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
Morristown, NJ

Average humidity in May - Morristown, NJ
  • Average humidity in May: 77%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April and August (74%).

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Average rainfall in May
Morristown, NJ

Average rainfall in May - Morristown, NJ
  • Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in May
Morristown, NJ

Average rainfall days in May - Morristown, NJ
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in May
Morristown, NJ

Average snowfall in May - Morristown, NJ
  • Average snowfall in May: 0.24"

The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Morristown, NJ

Average snowfall days in May - Morristown, NJ
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Morristown, NJ

Average daylight in May / Average sunshine in May - Morristown, NJ
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in May
Morristown, NJ

Average sunshine days in May - Morristown, NJ
  • Average sunshine days in May: 12.1 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index in May
Morristown, NJ

Average UV index in May - Morristown, NJ
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (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 cloud cover in May
Morristown, NJ

Average cloud cover in May - Morristown, NJ
  • Average cloud cover in May: 47

The months with the most cloud cover are February and March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in May
Morristown, NJ

Average visibility in May - Morristown, NJ
  • Average visibility in May: 5mi

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

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Morristown, New Jersey, USA

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