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
May
Weather in May
Temperature
The arrival of May brings an increase in high-temperatures, moving from a fresh 52.5°F (11.4°C) in April to a comfortable 66°F (18.9°C). Hornell observes an average low-temperature of 45.7°F (7.6°C) during May nights.Humidity
With an average relative humidity of 78%, May is the least humid month.Rainfall
In Hornell, in May, during 17.9 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 153.6 rainfall days, and 22.48" (571mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.7 snowfall days, in May, Hornell aggregates 0.12" (3mm) of snow. In Hornell, during the entire year, snow falls for 71.8 days and aggregates up to 25.47" (647mm) of snow.Daylight
The average length of the day in May is 14h and 37min.On the first day of May, sunrise is at 6:04 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:40 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 in Hornell. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the least humid month?
What is the average humidity in May?
How many days does it rain in May in Hornell?
What is the last month it snows?
How many hours of daylight does Hornell have in May?
When is the sunrise / sunset in May in Hornell?
How long on average sun shines in May?
When is the highest UV index?
How high is the UV index in May in Hornell?
Average temperature in May
Hornell, NY
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in May: 45.7°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in May
Hornell, NY
- Average pressure in May: 30"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
Hornell, NY
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in May
Hornell, NY
- Average humidity in May: 78%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (78%).
Average rainfall in May
Hornell, NY
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in May
Hornell, NY
- Average rainfall days in May: 17.9 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in May
Hornell, NY
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Hornell, NY
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Hornell, NY
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 2h and 48min).
Average sunshine days in May
Hornell, NY
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (9 days).
Average UV index in May
Hornell, 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
Hornell, NY
- Average cloud cover in May: 47
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in May
Hornell, NY
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).