April weather forecast and climate
Rochester, NY

Amazing High Falls in Rochester, New York, USA
Amazing High Falls in Rochester, New York, USA

Weather in April

April is a fresh spring month in Rochester, New York, with average temperature fluctuating between 37.4°F (3°C) and 51.4°F (10.8°C).

Temperature

In April, the average high-temperature increases, from a wintry 39.7°F (4.3°C) in March, to a cool 51.4°F (10.8°C). The average low-temperature, in April, is 37.4°F (3°C).

Humidity

In Rochester, the average relative humidity in April is 77%.

Rainfall

In April, the rain falls for 16.5 days. Throughout April, 2.76" (70mm) of precipitation is accumulated. In Rochester, 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, New York. In Rochester, during 3.8 snowfall days, 1.65" (42mm) of snow is typically accumulated. In Rochester, during the entire year, snow falls for 70.9 days, and aggregates up to 27.44" (697mm) of snow.

Ocean temperature

In April, the average ocean temperature in Rochester is 38.5°F (3.6°C).
Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

In April, the average length of the day is 13.5h.

Sunshine

In Rochester, the average sunshine in April is 7.6h.

UV index

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in April in Rochester?

In Rochester, in April, the average high-temperature is 51.4°F (10.8°C), and the average low-temperature is 37.4°F (3°C).

What is the average humidity in April in Rochester?

The average relative humidity in April is 77%.

How many days does it rain in April in Rochester?

In Rochester, during April, the rain falls for 16.5 days and regularly aggregates up to 2.76" (70mm) of precipitation.

How much does it snow in Rochester in April?

In Rochester, New York, in April, during 3.8 snowfall days, 1.65" (42mm) of snow is typically accumulated.

What is the water temperature in April in Rochester?

In April, the average ocean temperature in Rochester is 38.5°F (3.6°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

How many hours of daylight does Rochester have in April?

The average length of the day in April in Rochester is 13.5h.

How long on average sun shines in April in Rochester?

The average sunshine in April in Rochester is 7.6h.

What is the UV index reading in April in Rochester?

In Rochester, New York, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in April
Rochester, NY

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).

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Average pressure in April
Rochester, NY

Average pressure in April - Rochester, NY
  • Average pressure in April: 29.97"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in April
Rochester, NY

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).

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Average humidity in April
Rochester, NY

Average humidity in April - Rochester, NY
  • Average humidity in April: 77%

Months with the highest relative humidity are January and February (84%).
Months with the lowest relative humidity are August and September (76%).

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Average rainfall in April
Rochester, NY

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").

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Average rainfall days in April
Rochester, NY

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).

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Average snowfall in April
Rochester, NY

Average snowfall in April - Rochester, NY
  • Average snowfall in April: 1.65"

The month with the highest snowfall is February (7.01").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Rochester, NY

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).
Months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in April
Rochester, NY

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).

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Average daylight in April /
Average sunshine in April
Rochester, NY

Average daylight in April / Average sunshine in April - Rochester, NY
  • Average daylight in April: 13.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in April: 7.6h

The month with the most sunshine is July (Average sunshine: 10.6h).
Months with the least sunshine are January and February (Average sunshine: 2.7).

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Average sunshine days in April
Rochester, NY

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).

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Average UV index in April
Rochester, NY

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).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in April
Rochester, NY

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).

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Average visibility in April
Rochester, NY

Average visibility in April - Rochester, NY
  • Average visibility in April: 6mi

Months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January and February (5mi).

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