Greater Rochester International Airport
New York, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Greater Rochester International Airport, NY

January, like December, is another subzero cold winter month in Greater Rochester International Airport, New York, with temperature in the range of an average high of 30.2°F (-1°C) and an average low of 15.8°F (-9°C).

Temperature

January is the coldest month, with an average high-temperature of 30.2°F (-1°C) and an average low-temperature of 15.8°F (-9°C).

Rainfall

January and February are months with the least rain when the rain falls for 16 days and typically aggregates up to 2" (51mm) of rain.

Ocean temperature

In January, the average ocean temperature in Greater Rochester International Airport is 37.4°F (3°C).
Note: 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.

Daylight

In Greater Rochester International Airport, New York, the average length of the day is 9.4h.

Sunshine

Months with the least sunshine are January, November and December, with an average of 3h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Greater Rochester International Airport. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 1 in January interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the coldest month in Greater Rochester International Airport?

The coldest month in Greater Rochester International Airport, New York, is January, with an average high-temperature of 30.2°F (-1°C) and an average low-temperature of 15.8°F (-9°C).

What is the temperature in January in Greater Rochester International Airport?

The average high-temperature, in January, in Greater Rochester International Airport, New York, is 30.2°F (-1°C), while the average low-temperature is 15.8°F (-9°C).

How much does it rain in Greater Rochester International Airport in January?

In Greater Rochester International Airport, during January, the rain falls for 16 days and regularly aggregates up to 2" (51mm) of precipitation.

What is the driest month in Greater Rochester International Airport?

Months with the least rainfall in Greater Rochester International Airport are January and February Rain falls for 16 days and accumulates 2" (51mm) of rain.

How cold is the water in January in Greater Rochester International Airport?

In January, the average ocean temperature in Greater Rochester International Airport is 37.4°F (3°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.

What is the average length of the day in January in Greater Rochester International Airport?

The average length of the day in January in Greater Rochester International Airport is 9.4h.

What is the month with the least sunshine in Greater Rochester International Airport?

Months with the least sunshine in Greater Rochester International Airport are January, November and December, with an average of 3h of sunshine.

How many hours of sunshine does Greater Rochester International Airport have in January?

In January, the average sunshine is 3h.

When is the lowest UV index in Greater Rochester International Airport?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Greater Rochester International Airport, New York.

How high is the UV index in January in Greater Rochester International Airport?

In Greater Rochester International Airport, New York, the average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in January - Greater Rochester International Airport, NY
  • Average high temperature in January: 30°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 January: 16°F

Months with the highest average low temperature are July and August (59°F).
Coldest months (with the lowest average low temperature) are January and February (16°F).

Average rainfall in January - Greater Rochester International Airport, NY
  • Average rainfall in January: 2"

The wettest month (with the highest rainfall) is August (3.3").
Driest months (with the lowest rainfall) are January and February (2").

Average rainfall days in January - Greater Rochester International Airport, NY
  • Average rainfall days in January: 16 days

The month with the highest number of rainy days is December (17 days).
The month with the lowest number of rainy days is July (9 days).

Average sea temperature in January - Greater Rochester International Airport, NY
  • Average sea temperature in January: 37°F

The best month for swimming (with the highest average sea temperature) is August (70°F).
Coldest months (with the lowest average sea temperature) are February and March (36°F).

Average daylight in January / Average sunshine in January - Greater Rochester International Airport, NY
  • Average daylight in January: 9.4h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in January: 3h

Months with most sunshine are June and July (Average sunshine: 10h).
Months with least sunshine are January, November and December (Average sunshine: 3).

Average UV index in January - Greater Rochester International Airport, NY
  • Average UV index in January: 1

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).