Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Willow Brook's transition into May sees a rise in the average high-temperature, advancing from a mild 57°F (13.9°C) in April to an agreeable 68.5°F (20.3°C). In the month of May, Willow Brook witnesses a consistent average low-temperature of 48.9°F (9.4°C).Humidity
In May, the average relative humidity in Willow Brook is 79%.Rainfall
In Willow Brook, during May, the rain falls for 15.3 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Willow Brook, New Jersey, during the entire year, the rain falls for 131.1 days and collects up to 13.31" (338mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Willow Brook. May is the last month it regularly snows. During 0.1 snowfall days, in May, Willow Brook aggregates 0.16" (4mm) of snow. Throughout the year, there are 25.8 snowfall days, and 6.89" (175mm) of snow is accumulated.Daylight
The average length of the day in May in Willow Brook is 14h and 31min.On the first day of the month, sunrise is at 5:53 am and sunset at 7:55 pm. On the last day of May, in Willow Brook, New Jersey, sunrise is at 5:27 am and sunset at 8:23 pm EDT.
Sunshine
In Willow Brook, the average sunshine in May is 8.3h.UV index
In Willow Brook, New Jersey, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 5 in May transforms into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the average May temperature in Willow Brook?
What is the average humidity in May in Willow Brook?
How much does it rain in Willow Brook in May?
What is the last month it snows in Willow Brook?
What is the average length of the day in May in Willow Brook?
What time are sunrise and sunset in May in Willow Brook?
How many hours of sunshine does Willow Brook have in May?
What is the UV index intensity in May in Willow Brook?
Average temperature in May
Willow Brook, NJ
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in May
Willow Brook, 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
Willow Brook, NJ
- Average wind speed in May: 5.9mph
The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Willow Brook, NJ
- Average humidity in May: 79%
The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Willow Brook, NJ
- Average rainfall in May: 1.5"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in May
Willow Brook, NJ
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in May
Willow Brook, NJ
- Average snowfall in May: 0.16"
The month with the highest snowfall is March (1.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Willow Brook, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Willow Brook, 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 24min).
Average sunshine days in May
Willow Brook, NJ
- Average sunshine days in May: 12.8 days
The months with the most sunshine days are January and November (20.4 days).
The month with the least sunshine days is June (12.5 days).
Average UV index in May
Willow Brook, NJ
- Average UV index in May: 5
The month with the highest UV index is June (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
Willow Brook, NJ
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in May
Willow Brook, NJ
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Willow Brook, New Jersey, USA
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