Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With average high and low temperatures of 37.8°F (3.2°C) and 27.9°F (-2.3°C) respectively, January is Port Monmouth's coldest month.Humidity
In Port Monmouth, New Jersey, the average relative humidity in January is 74%.Rainfall
January is the month with the least rainfall. Rain falls for 6.6 days and accumulates 0.63" (16mm) of precipitation.Snowfall
Months with snowfall are January through March, October through December. The months with the most snowfall in Port Monmouth are January and December, with an average 0.47" (12mm) of accumulated snow.Daylight
The average length of the day in January is 9h and 41min.On the first day of the month, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of January, in Port Monmouth, sunrise is at 7:06 am and sunset at 5:12 pm EST.
Sunshine
In January, the average sunshine is 5.2h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during January leads to these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
Is January cold?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
When does it snow the most?
How many days does it snow in January?
How many hours of daylight does Port Monmouth have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Port Monmouth have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Port Monmouth, NJ
- Average high temperature in January: 37.8°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in January: 27.9°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in January
Port Monmouth, NJ
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Port Monmouth, NJ
- Average wind speed in January: 11.7mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in January
Port Monmouth, NJ
- Average humidity in January: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in January
Port Monmouth, NJ
- Average rainfall in January: 0.63"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in January
Port Monmouth, NJ
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in January
Port Monmouth, NJ
- Average snowfall in January: 0.47"
The months with the highest snowfall are January and December (0.47").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in January
Port Monmouth, NJ
- Average snowfall days in January: 4.7 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Port Monmouth, NJ
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Port Monmouth, NJ
- Average sunshine days in January: 21 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in January
Port Monmouth, 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, March, November and December (UV index 2).
Average cloud cover in January
Port Monmouth, NJ
- Average cloud cover in January: 43
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Port Monmouth, 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).
Port Monmouth, New Jersey, USA
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