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
In Waterloo, the onset of May comes with an increased average high-temperature, moving from April's cool 53.4°F (11.9°C) to a comfortable 66.9°F (19.4°C). During May, the nighttime temperature in Waterloo averages to a frosty 47.8°F (8.8°C).Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 78%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.52" (64mm) of precipitation is accumulated. In Waterloo, during the entire year, the rain falls for 163.3 days and collects up to 22.6" (574mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Waterloo aggregates 0.04" (1mm) of snow. Throughout the year, in Waterloo, there are 73.3 snowfall days, and 20.75" (527mm) of snow is accumulated.Daylight
In May, the average length of the day in Waterloo is 14h and 40min.On the first day of May in Waterloo, sunrise is at 6:00 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:39 pm EDT.
Sunshine
In May, the average sunshine in Waterloo is 9h.UV index
The months with the highest UV index in Waterloo are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Waterloo?
What is the least humid month in Waterloo?
What is the average humidity in May in Waterloo?
How many days does it rain in May in Waterloo?
What is the last month it snows in Waterloo?
How many hours of daylight does Waterloo have in May?
When are sunrise and sunset in May in Waterloo?
How many hours of sunshine does Waterloo have in May?
What is the month with the highest UV index in Waterloo?
How high is the UV index in May in Waterloo?
Average temperature in May
Waterloo, NY
- Average high temperature in May: 66.9°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
Waterloo, NY
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Waterloo, NY
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in May
Waterloo, NY
- Average humidity in May: 78%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in May
Waterloo, NY
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in May
Waterloo, NY
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in May
Waterloo, NY
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Waterloo, NY
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (18.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Waterloo, NY
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in May
Waterloo, NY
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (6.2 days).
Average UV index in May
Waterloo, NY
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Waterloo, NY
- Average cloud cover in May: 42
The months with the most cloud cover are January and February (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in May
Waterloo, NY
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Waterloo, New York, USA
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