January weather forecast
Rio Grande, NJ

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Weather in January

January, the same as December, is an icy winter month in Rio Grande, New Jersey, with temperature in the range of an average low of 32.2°F (0.1°C) and an average high of 40.5°F (4.7°C).

Temperature

With average temperatures fluctuating between a high of 40.5°F (4.7°C) and a low of 32.2°F (0.1°C), January stands out as the coldest month.

Humidity

In January, the average relative humidity is 74%.

Rainfall

January is the month with the least rainfall. Rain falls for 8.7 days and accumulates 2.13" (54mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. In Rio Grande, in January, snow falls for 2.4 days, with typically accumulated 0.67" (17mm) of snow. In Rio Grande, during the entire year, snow falls for 8.3 days and aggregates up to 3.11" (79mm) of snow.

Daylight

In Rio Grande, the average length of the day in January is 9h and 48min.
On the first day of January, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:18 pm EST.

Sunshine

The average sunshine in January is 5.3h.

UV index

The months with the lowest UV index in Rio Grande are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 2 in January translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January, noted for its average high-temperature of 40.5°F (4.7°C) and an average low-temperature of 32.2°F (0.1°C), is considered the coldest month.

How cold is it in January?

The high-temperature, in January, in Rio Grande, records 40.5°F (4.7°C), while the low-temperature is 32.2°F (0.1°C).

What is the average humidity in January?

In Rio Grande, the average relative humidity in January is 74%.

What is the driest month?

January is the month with the least rainfall in Rio Grande. Rain falls for 8.7 days and accumulates 2.13" (54mm) of precipitation.

How much does it rain in January?

In January, the rain falls for 8.7 days. Throughout January, 2.13" (54mm) of precipitation is accumulated.

How much does it snow in January?

In Rio Grande, in January, during 2.4 snowfall days, 0.67" (17mm) of snow is typically accumulated.

How many hours of daylight does Rio Grande have in January?

The average day length in January is 9h and 48min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:18 pm EST.

How many hours of sunshine does Rio Grande have in January?

The average sunshine duration in January is 5.3h.

When is the lowest UV index?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.

What is the UV index intensity in January?

The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Rio Grande, NJ

Average temperature in January - Rio Grande, NJ
  • Average high temperature in January: 40.5°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in January: 32.2°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).

Average pressure in January
Rio Grande, NJ

Average pressure in January - Rio Grande, NJ
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Rio Grande, NJ

Average wind speed in January - Rio Grande, NJ
  • Average wind speed in January: 13.5mph

The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).

Average humidity in January
Rio Grande, NJ

Average humidity in January - Rio Grande, NJ
  • Average humidity in January: 74%

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

Average rainfall in January
Rio Grande, NJ

Average rainfall in January - Rio Grande, NJ
  • Average rainfall in January: 2.13"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

Average rainfall days in January
Rio Grande, NJ

Average rainfall days in January - Rio Grande, NJ
  • Average rainfall days in January: 8.7 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in January
Rio Grande, NJ

Average snowfall in January - Rio Grande, NJ
  • Average snowfall in January: 0.67"

The month with the highest snowfall is December (1.06").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in January
Rio Grande, NJ

Average snowfall days in January - Rio Grande, NJ
  • Average snowfall days in January: 2.4 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Rio Grande, NJ

Average daylight in January / Average sunshine in January - Rio Grande, NJ
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in January
Rio Grande, NJ

Average sunshine days in January - Rio Grande, NJ
  • Average sunshine days in January: 18.6 days

The month with the most sunshine days is November (18.9 days).
The months with the least sunshine days are May and June (12.5 days).

Average UV index in January
Rio Grande, NJ

Average UV index in January - Rio Grande, NJ
  • Average UV index in January: 2

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

Average cloud cover in January
Rio Grande, NJ

Average cloud cover in January - Rio Grande, NJ
  • Average cloud cover in January: 43

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in January
Rio Grande, NJ

Average visibility in January - Rio Grande, NJ
  • Average visibility in January: 6mi

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

Rio Grande, New Jersey, USA

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