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
January stands out as Grenloch's coldest month, with temperatures ranging between an average high of 37.9°F (3.3°C) and a low of 26.1°F (-3.3°C).Humidity
In January, the average relative humidity in Grenloch is 74%.Rainfall
The months with the least rainfall are January and September Rain falls for 6.5 days and accumulates 0.67" (17mm) of rain.Snowfall
January through March, May, November and December are months with snowfall. In January, in Grenloch, it is snowing for 3.5 days. Throughout January, 0.91" (23mm) of snow is accumulated. Throughout the year, there are 11.4 snowfall days, and 3.11" (79mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 44min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:45 pm. On the last day of January, in Grenloch, sunrise is at 7:09 am and sunset at 5:17 pm EST.
Sunshine
The average sunshine in January is 5.1h.UV index
January, February, 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 minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 2 in January suggests 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 around mid-day is intense; avoid the Sun and stay safe. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Grenloch?
How cold is it in January?
What is the average humidity in January?
What is the driest month?
How much does it rain in Grenloch in January?
How many days does it snow in January?
How many hours of daylight does Grenloch have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Grenloch, NJ
- Average high temperature in January: 37.9°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in January: 26.1°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in January
Grenloch, NJ
- Average pressure in January: 30.08"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
Grenloch, NJ
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in January
Grenloch, NJ
- Average humidity in January: 74%
The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in January
Grenloch, NJ
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is August (1.38").
The driest months (with the least rainfall) are January and September (0.67").
Average rainfall days in January
Grenloch, NJ
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in January
Grenloch, NJ
- Average snowfall in January: 0.91"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in January
Grenloch, NJ
- Average snowfall days in January: 3.5 days
The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Grenloch, NJ
- Average daylight in January: 9h and 4min
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 24min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Grenloch, NJ
- Average sunshine days in January: 20.8 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in January
Grenloch, NJ
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Grenloch, NJ
- Average cloud cover in January: 44
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in January
Grenloch, 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).
Grenloch, New Jersey, USA
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