Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
Rochester, New York, in April sees a temperature change, with average high-temperatures moving from an icy 39.7°F (4.3°C) in March to a fresh 51.4°F (10.8°C). Rochester records an average nighttime low of 37.4°F (3°C) in April.Humidity
The average relative humidity in April is 77%.Rainfall
In Rochester, during April, the rain falls for 16.5 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Rochester, New York, during the entire year, the rain falls for 172.4 days and collects up to 29.45" (748mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Rochester. In Rochester, in April, snow falls for 3.8 days, with typically accumulated 1.65" (42mm) of snow. Throughout the year, there are 70.9 snowfall days, and 27.44" (697mm) of snow is accumulated.Ocean temperature
In Rochester, in April, the average water temperature is 38.5°F (3.6°C).Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.
Daylight
In Rochester, New York, the average length of the day in April is 13h and 26min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:37 pm. On the last day of April, in Rochester, sunrise is at 6:04 am and sunset at 8:11 pm EDT.
Sunshine
In April, the average sunshine is 7.6h.UV index
In April, the average daily maximum UV index in Rochester is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What are the temperatures in Rochester in April?
What is the average humidity in April in Rochester?
How many days does it rain in April in Rochester?
How much does it snow in Rochester in April?
What is the ocean temperature in April in Rochester?
What is the average length of the day in April in Rochester?
When are sunrise and sunset in April in Rochester?
How many hours of sunshine does Rochester have in April?
How high is the UV index in April in Rochester?
Average temperature in April
Rochester, NY
- Average high temperature in April: 51.4°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in April: 37.4°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in April
Rochester, NY
- Average pressure in April: 29.97"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 April
Rochester, NY
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in April
Rochester, NY
- Average humidity in April: 77%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are August and September (76%).
Average rainfall in April
Rochester, NY
- Average rainfall in April: 2.76"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in April
Rochester, NY
- Average rainfall days in April: 16.5 days
The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in April
Rochester, NY
- Average snowfall in April: 1.65"
The month with the highest snowfall is February (7.01").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Rochester, NY
- Average snowfall days in April: 3.8 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
Rochester, NY
- Average sea temperature in April: 38.6°F
The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is March (35.8°F).
Average daylight in April /
Average sunshine in April
Rochester, NY
- Average daylight in April: 13h and 2min
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 April: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days in April
Rochester, NY
- Average sunshine days in April: 10.3 days
The month with the most sunshine days is September (13.9 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in April
Rochester, NY
- Average UV index in April: 3
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 April
Rochester, NY
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
Rochester, NY
- Average visibility in April: 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, New York, USA
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