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
In Holmdel, the month of January registers the lowest temperatures, averaging 37.8°F (3.2°C) at the peak and 27.3°F (-2.6°C) at the lowest.Humidity
In January, the average relative humidity is 74%.Rainfall
In Holmdel, during January, the rain falls for 3.4 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, in Holmdel, there are 68.3 rainfall days, and 5.75" (146mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. January is the month with the most snowfall. Snow falls for 2.5 days and accumulates 0.16" (4mm) of snow.Daylight
In Holmdel, New Jersey, the average length of the day in January is 9h and 41min.On the first day of January in Holmdel, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:13 pm EST.
Sunshine
In Holmdel, the average sunshine in January is 5.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 2 in January leads to these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What time of the year is the coldest in Holmdel?
How cold is it in Holmdel in January?
What is the average humidity in January in Holmdel?
How much does it rain in Holmdel in January?
What is the snowiest month in Holmdel?
How many days does it snow in January in Holmdel?
How many hours of daylight does Holmdel have in January?
When are sunrise and sunset in January in Holmdel?
How long on average sun shines in January in Holmdel?
When is the lowest UV index in Holmdel?
What is the UV index reading in January in Holmdel?
Average temperature in January
Holmdel, NJ
- Average high temperature in January: 37.8°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in January: 27.3°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in January
Holmdel, 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
Holmdel, NJ
- Average wind speed in January: 11.1mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in January
Holmdel, NJ
- Average humidity in January: 74%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (73%).
Average rainfall in January
Holmdel, NJ
- Average rainfall in January: 0.35"
The wettest month (with the highest rainfall) is July (0.71").
The driest month (with the least rainfall) is September (0.12").
Average rainfall days in January
Holmdel, NJ
- Average rainfall days in January: 3.4 days
The month with the highest number of rainy days is July (8 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in January
Holmdel, NJ
- Average snowfall in January: 0.16"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Holmdel, NJ
- Average snowfall days in January: 2.5 days
The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Holmdel, 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 24min).
- 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 54min).
Average sunshine days in January
Holmdel, NJ
- Average sunshine days in January: 25.7 days
The month with the most sunshine days is January (25.7 days).
The month with the least sunshine days is July (17.3 days).
Average UV index in January
Holmdel, 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, November and December (UV index 2).
Average cloud cover in January
Holmdel, NJ
- Average cloud cover in January: 43
The months with the most cloud cover are February, March and December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in January
Holmdel, 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).
Holmdel, New Jersey, USA
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