Weather in April
Temperature
In April, the average high-temperature increases from a chilly 42.8°F (6°C) in March to a moderate 55.4°F (13°C). April sees the temperature falling to a mean low of 35.6°F (2°C).Rainfall
In April, the rain falls for 13 days. Throughout April, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 152 rainfall days, and 31.89" (810mm) of precipitation is accumulated.Ocean temperature
In Greater Rochester International Airport, the average seawater temperature in April is 37.4°F (3°C).Note: While swimming, this is deemed life-threatening and exceptionally hazardous. The icy water induces intense pain and causes swift hyperventilation. Employing a specialized swimsuit is required to offset thermal harm.
Daylight
In April, the average length of the day is 13h and 26min.On the first day of April, sunrise is at 6:51 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:11 pm EDT.
Sunshine
In April, the average sunshine in Greater Rochester International Airport is 7h.UV index
In April, the average daily maximum UV index in Greater Rochester International Airport 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: A maximum high daily UV index of 5 during April translates into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
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How many hours of sunshine does Greater Rochester International Airport have in April?
How high is the UV index in April?
Average temperature in April
Greater Rochester International Airport, NY
- Average high temperature in April: 55°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in April: 36°F
The months with the highest average low temperature are July and August (59°F).
The coldest months (with the lowest average low temperature) are January and February (16°F).
Average rainfall in April
Greater Rochester International Airport, NY
- Average rainfall in April: 2.7"
The wettest month (with the highest rainfall) is August (3.3").
The driest months (with the least rainfall) are January and February (2").
Average rainfall days in April
Greater Rochester International Airport, NY
- Average rainfall days in April: 13 days
The month with the highest number of rainy days is December (17 days).
The month with the least rainy days is July (9 days).
Average sea temperature in April
Greater Rochester International Airport, NY
- Average sea temperature in April: 37°F
The best month for swimming (with the highest average sea temperature) is August (70°F).
The coldest months (with the lowest average sea temperature) are February and March (36°F).
Average daylight in April /
Average sunshine in April
Greater Rochester International Airport, 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
The months with the most sunshine are June and July (Average sunshine: 10h).
The months with the least sunshine are January, November and December (Average sunshine: 3h).
Average UV index in April
Greater Rochester International Airport, NY
- Average UV index in April: 5
The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January and December (UV index 1).
Greater Rochester International Airport, New York, USA
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