Hewlett Bay Park
New York, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Hewlett Bay Park, NY

January, the same as December, is another cold winter month in Hewlett Bay Park, New York, with average temperature ranging between max 37°F (2.8°C) and min 28.2°F (-2.1°C).

Temperature

With an average high-temperature of 37°F (2.8°C) and an average low-temperature of 28.2°F (-2.1°C), January is the coldest month.

Humidity

The average relative humidity in January is 73%.

Rainfall

January is the month with the least rainfall in Hewlett Bay Park. Rain falls for 7.3 days and accumulates 0.91" (23mm) of precipitation.

Snowfall

January through March, October through December are months with snowfall in Hewlett Bay Park. In January, in Hewlett Bay Park, it is snowing for 4.6 days. Throughout January, 0.67" (17mm) of snow is accumulated. In Hewlett Bay Park, during the entire year, snow falls for 15.8 days, and aggregates up to 2.95" (75mm) of snow.

Ocean temperature

In January, the average ocean temperature in Hewlett Bay Park is 42.4°F (5.8°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In January, the average length of the day is 9.7h.

Sunshine

The average sunshine in Hewlett Bay Park is 5.1h.

UV index

Months with the lowest UV index in Hewlett Bay Park are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Hewlett Bay Park?

With an average high-temperature of 37°F (2.8°C) and an average low-temperature of 28.2°F (-2.1°C), January is the coldest month in Hewlett Bay Park, New York.

What is the temperature in January in Hewlett Bay Park?

In January, in Hewlett Bay Park, the average high-temperature is 37°F (2.8°C), and the average low-temperature is 28.2°F (-2.1°C).

What is the average humidity in January in Hewlett Bay Park?

In January, the average relative humidity in Hewlett Bay Park is 73%.

How much does it rain in Hewlett Bay Park in January?

In Hewlett Bay Park, New York, in January, during 7.3 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

What is the driest month in Hewlett Bay Park?

January is the month with the least rainfall. Rain falls for 7.3 days and accumulates 0.91" (23mm) of precipitation.

How many days does it snow in January in Hewlett Bay Park?

In Hewlett Bay Park, in January, during 4.6 snowfall days, 0.67" (17mm) of snow is typically accumulated.

How cold is the water in January in Hewlett Bay Park?

In Hewlett Bay Park, the average seawater temperature in January is 42.4°F (5.8°C). Swimming in 42.4°F (5.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January in Hewlett Bay Park?

In Hewlett Bay Park, the average length of the day in January is 9.7h.

How long on average sun shines in January in Hewlett Bay Park?

In January, the average sunshine is 5.1h.

When is the lowest UV index in Hewlett Bay Park?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hewlett Bay Park.

What is the UV index reading in January in Hewlett Bay Park?

In Hewlett Bay Park, the average daily maximum UV index in January is 2. 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 - Hewlett Bay Park, NY
  • Average high temperature in January: 37°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in January: 28.2°F

The month with the highest average low temperature is August (71.1°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

Average humidity in January - Hewlett Bay Park, NY
  • Average humidity in January: 73%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (72%).

Average rainfall in January - Hewlett Bay Park, NY
  • Average rainfall in January: 0.91"

Wettest months (with the highest rainfall) are July and August (2.32").
The driest month (with the lowest rainfall) is January (0.91").

Average rainfall days in January - Hewlett Bay Park, NY
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is July (15.1 days).
The month with the lowest number of rainy days is January (7.3 days).

Average snowfall in January - Hewlett Bay Park, NY
  • Average snowfall in January: 0.67"

The month with the highest snowfall is March (1.02").
Months with the lowest snowfall are April, May, June, July, August and September (0").

Average snowfall days in January - Hewlett Bay Park, NY
  • Average snowfall days in January: 4.6 days

The month with the highest number of snowfall days is January (4.6 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in January - Hewlett Bay Park, NY
  • Average sea temperature in January: 42.4°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in January / Average sunshine in January - Hewlett Bay Park, NY
  • Average daylight in January: 9.7h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 5.1h

The month with most sunshine is July (Average sunshine: 10.8h).
The month with least sunshine is February (Average sunshine: 4.8h).

Average UV index in January - Hewlett Bay Park, NY
  • Average UV index in January: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).