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
May brings a temperature increase, with average high-temperatures moving from April's cool 55°F (12.8°C) to a refreshing 64°F (17.8°C). Erma logs an average low-temperature of 57.7°F (14.3°C) during the nights of May, subtly lower than its daytime highs.Humidity
With an average relative humidity of 82%, May is the most humid month.Rainfall
In Erma, during May, the rain falls for 16.6 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 158 rainfall days, and 35.47" (901mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in May is 14h and 19min.On the first day of May, sunrise is at 6:00 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:18 pm EDT.
Sunshine
In Erma, New Jersey, the average sunshine in May is 9h.UV index
In May, the average daily maximum UV index in Erma is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Erma?
What is the most humid month in Erma?
What is the average humidity in May in Erma?
How many days does it rain in May in Erma?
When it does not snow in Erma?
How many hours of daylight does Erma have in May?
When are sunrise and sunset in May in Erma?
How many hours of sunshine does Erma have in May?
What is the UV index intensity in May in Erma?
Average temperature in May
Erma, NJ
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in May: 57.7°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in May
Erma, NJ
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Erma, NJ
- Average wind speed in May: 10.9mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).
Average humidity in May
Erma, NJ
- Average humidity in May: 82%
The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).
Average rainfall in May
Erma, NJ
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in May
Erma, NJ
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in May
Erma, NJ
- Average snowfall in May: 0"
The month with the highest snowfall is December (1.06").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Erma, NJ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Erma, NJ
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Erma, NJ
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is November (18.9 days).
The months with the least sunshine days are May and June (12.5 days).
Average UV index in May
Erma, 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 and December (UV index 2).
Average cloud cover in May
Erma, NJ
- Average cloud cover in May: 41
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Erma, NJ
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Erma, New Jersey, USA
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