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 May, the meteorological conditions change with the average high-temperature moving from a cool 52°F (11.1°C) in April to a comfortable 63.1°F (17.3°C). An average low-temperature of 46.2°F (7.9°C) is anticipated throughout the nights in Rochester during May.Humidity
In May, the average relative humidity is 77%.Rainfall
In May, the rain falls for 15.1 days. Throughout May, 2.13" (54mm) of precipitation is accumulated. Throughout the year, in Rochester, there are 143.1 rainfall days, and 29.06" (738mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rochester are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Rochester aggregates 0.28" (7mm) of snow. In Rochester, during the entire year, snow falls for 40 days and aggregates up to 27.8" (706mm) of snow.Daylight
In May, the average length of the day in Rochester is 14h and 42min.On the first day of May in Rochester, sunrise is at 5:35 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:06 am and sunset at 8:16 pm EDT.
Sunshine
In May, the average sunshine in Rochester is 8.2h.UV index
The average daily maximum UV index in May in Rochester is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What is the temperature in May in Rochester?
What is the average humidity in May in Rochester?
How much does it rain in Rochester in May?
What is the last month it snows in Rochester?
What is the average length of the day in May in Rochester?
When are sunrise and sunset in May in Rochester?
How many hours of sunshine does Rochester have in May?
What is the UV index intensity in May in Rochester?
Average temperature in May
Rochester, NH
- Average high temperature in May: 63.1°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 46.2°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 (17.4°F).
Average pressure in May
Rochester, NH
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Rochester, NH
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Rochester, NH
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Rochester, NH
- Average rainfall in May: 2.13"
The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in May
Rochester, NH
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in May
Rochester, NH
- Average snowfall in May: 0.28"
The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Rochester, NH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (10.4 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, NH
- 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 0min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Rochester, NH
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).
Average UV index in May
Rochester, NH
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Rochester, NH
- Average cloud cover in May: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Rochester, NH
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Rochester, New Hampshire, USA
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