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
The start of May signals an increase in the average high-temperature, moving from a fresh 55°F (12.8°C) in April to a refreshing 66.6°F (19.2°C). Throughout the month of May, Rochester reports a steady low-temperature average of 51.1°F (10.6°C).Humidity
In Rochester, the average relative humidity in May is 79%.Rainfall
In Rochester, in May, during 18.8 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. In Rochester, during the entire year, the rain falls for 173.9 days and collects up to 30.16" (766mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Rochester. During 0.3 snowfall days, in May, Rochester aggregates 0.16" (4mm) of snow. Throughout the year, there are 59.3 snowfall days, and 17.32" (440mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 30min.On the first day of the month, sunrise is at 6:25 am and sunset at 8:26 pm. On the last day of May, sunrise is at 5:58 am and sunset at 8:55 pm EDT.
Sunshine
In Rochester, the average sunshine in May is 8.9h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 5 suggests this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rochester in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Rochester have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Rochester, OH
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in May: 51.1°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
Rochester, OH
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Rochester, OH
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in May
Rochester, OH
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Rochester, OH
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is June (3.62").
The driest months (with the least rainfall) are February, November and December (1.93").
Average rainfall days in May
Rochester, OH
- Average rainfall days in May: 18.8 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in May
Rochester, OH
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Rochester, OH
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rochester, OH
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Rochester, OH
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is September (12.9 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
Rochester, OH
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Rochester, OH
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Rochester, OH
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Rochester, Ohio, USA
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