May weather forecast
Florham Park, NJ

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Weather in May

May, the last month of the spring in Florham Park, is a pleasant month, with an average temperature varying between 69.1°F (20.6°C) and 51.4°F (10.8°C).

Temperature

With the onset of May, Florham Park's average high-temperature experiences a rise, moving from April's refreshing 58.5°F (14.7°C) to an agreeable 69.1°F (20.6°C). An average low-temperature of 51.4°F (10.8°C) is observed during the May nights.

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Florham Park, during May, the rain falls for 17.3 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Florham Park, 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. May is the last month it regularly snows. During 0.1 snowfall days, in May, Florham Park aggregates 0.24" (6mm) of snow. Throughout the year, there are 26 snowfall days, and 11.61" (295mm) of snow is accumulated.

Daylight

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

Sunshine

The average sunshine in May is 8.4h.

UV index

In Florham Park, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

In Florham Park, 69.1°F (20.6°C) is the average high-temperature and 51.4°F (10.8°C) is the average low-temperature during May.

What is the average humidity in May in Florham Park?

In May, the average relative humidity is 77%.

How many days does it rain in May?

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

What is the last month it snows?

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

How many hours of daylight does Florham Park have in May?

The average day length in May is 14h and 28min.

When are sunrise and sunset in May in Florham Park?

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

How many hours of sunshine does Florham Park have in May?

In May, the average sunshine duration is 8.4h.

What is the UV index reading in May?

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Florham Park, NJ

Average temperature in May - Florham Park, 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).

Average pressure in May
Florham Park, NJ

Average pressure in May - Florham Park, 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).

Average wind speed in May
Florham Park, NJ

Average wind speed in May - Florham Park, 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).

Average humidity in May
Florham Park, NJ

Average humidity in May - Florham Park, 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%).

Average rainfall in May
Florham Park, NJ

Average rainfall in May - Florham Park, 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").

Average rainfall days in May
Florham Park, NJ

Average rainfall days in May - Florham Park, 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).

Average snowfall in May
Florham Park, NJ

Average snowfall in May - Florham Park, 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").

Average snowfall days in May
Florham Park, NJ

Average snowfall days in May - Florham Park, 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).

Average daylight in May /
Average sunshine in May
Florham Park, NJ

Average daylight in May / Average sunshine in May - Florham Park, 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).

Average sunshine days in May
Florham Park, NJ

Average sunshine days in May - Florham Park, 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).

Average UV index in May
Florham Park, NJ

Average UV index in May - Florham Park, 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).

Average cloud cover in May
Florham Park, NJ

Average cloud cover in May - Florham Park, 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).

Average visibility in May
Florham Park, NJ

Average visibility in May - Florham Park, 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).

Florham Park, New Jersey, USA

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