May weather forecastMorrisville, NY
May
Weather in May
May, the last month of the spring in Morrisville, is a comfortable month, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 65.8°F (18.8°C).Temperature
With the onset of May, Morrisville's average high-temperature sees a rise, moving from April's cool 52°F (11.1°C) to a refreshing 65.8°F (18.8°C). During the May nights, an average temperature of 46°F (7.8°C) is observed.Humidity
April and May, with an average relative humidity of 79%, are the least humid months.Rainfall
In Morrisville, in May, during 18.3 rainfall days, 3.54" (90mm) of precipitation is typically accumulated. In Morrisville, during the entire year, the rain falls for 161.6 days and collects up to 36.02" (915mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, Morrisville aggregates 0.2" (5mm) of snow. In Morrisville, during the entire year, snow falls for 88.2 days and aggregates up to 50.98" (1295mm) of snow.Daylight
In Morrisville, the average length of the day in May is 14h and 40min.On the first day of May, sunrise is at 5:55 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:34 pm EDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 5 in May leads to these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Morrisville, NY
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in May
Morrisville, 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
Morrisville, NY
- Average wind speed in May: 7.7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Morrisville, NY
- Average humidity in May: 79%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in May
Morrisville, NY
- Average rainfall in May: 3.54"
The wettest month (with the highest rainfall) is April (3.66").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in May
Morrisville, NY
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in May
Morrisville, NY
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (10.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Morrisville, NY
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (19.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Morrisville, NY
- Average daylight in May: 14h and 42min
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: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in May
Morrisville, NY
- Average sunshine days in May: 10.1 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in May
Morrisville, 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, February and December (UV index 1).
Average cloud cover in May
Morrisville, NY
- Average cloud cover in May: 46
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in May
Morrisville, NY
- Average visibility in May: 5mi
The month with the highest visibility is October (6mi).
The months with the lowest visibility are January and February (4mi).





