May weather forecastTheresa, NY
May
Weather in May
The last month of the spring, May, is a refreshing month in Theresa, New York, with an average temperature varying between 63.7°F (17.6°C) and 46°F (7.8°C).Temperature
With the onset of May, Theresa's average high-temperature sees a rise, moving from April's fresh 50.7°F (10.4°C) to a comfortable 63.7°F (17.6°C). During May, the nighttime temperature averages to a frosty 46°F (7.8°C).Humidity
In Theresa, the average relative humidity in May is 79%.Rainfall
In Theresa, in May, during 16.5 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, there are 166.4 rainfall days, and 30.55" (776mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Theresa. During 0.8 snowfall days, in May, Theresa aggregates 0.12" (3mm) of snow. In Theresa, during the entire year, snow falls for 87.3 days and aggregates up to 40.16" (1020mm) of snow.Daylight
In Theresa, New York, the average length of the day in May is 14h and 47min.On the first day of the month, sunrise is at 5:53 am and sunset at 8:07 pm. On the last day of May, sunrise is at 5:22 am and sunset at 8:39 pm EDT.
Sunshine
The average sunshine in May is 8.8h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. To protect against the Sun's most potent rays, avoid direct exposure around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Theresa, NY
- Average high temperature in May: 63.7°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in May
Theresa, NY
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Theresa, NY
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in May
Theresa, NY
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Theresa, NY
- Average rainfall in May: 2.95"
The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in May
Theresa, NY
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is October (17.4 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in May
Theresa, NY
- Average snowfall in May: 0.12"
The month with the highest snowfall is December (9.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Theresa, NY
- Average snowfall days in May: 0.8 days
The month with the highest number of snowfall days is January (20.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Theresa, NY
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 54min).
Average sunshine days in May
Theresa, NY
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is September (14.8 days).
The month with the least sunshine days is February (6.9 days).
Average UV index in May
Theresa, NY
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Theresa, NY
- Average cloud cover in May: 43
The months with the most cloud cover are January and February (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Theresa, NY
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
