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, noted for its average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 30°F (-1.1°C), is considered the coldest month.Humidity
January, March, April and November, with an average relative humidity of 74%, are the least humid months.Rainfall
In Smithville, during January, the rain falls for 9.5 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Smithville, during the entire year, the rain falls for 149.6 days and collects up to 28.9" (734mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. January is the month with the most snowfall. Snow falls for 4.4 days and accumulates 1.73" (44mm) of snow.Daylight
In Smithville, the average length of the day in January is 9h and 46min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:44 pm. On the last day of January, sunrise is at 7:06 am and sunset at 5:16 pm EST.
Sunshine
The average sunshine in January is 5.3h.UV index
The months with the lowest UV index 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: The average daily UV index of 2 in January transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. 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 time of the year is the coldest in Smithville?
How cold does it get in January?
What are the least humid months?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January in Smithville?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Smithville, NJ
- Average high temperature in January: 39.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in January: 30°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in January
Smithville, NJ
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Smithville, NJ
- Average wind speed in January: 11.1mph
The windiest months (with the highest average wind speed) are January and February (11.1mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).
Average humidity in January
Smithville, NJ
- Average humidity in January: 74%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in January
Smithville, NJ
- Average rainfall in January: 1.89"
The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in January
Smithville, NJ
- Average rainfall days in January: 9.5 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in January
Smithville, NJ
- Average snowfall in January: 1.73"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Smithville, NJ
- Average snowfall days in January: 4.4 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Smithville, 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 24min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in January
Smithville, NJ
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is November (19.6 days).
The months with the least sunshine days are May and July (14.1 days).
Average UV index in January
Smithville, 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 and December (UV index 2).
Average cloud cover in January
Smithville, 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 July (Cloud cover 27).
Average visibility in January
Smithville, 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).
Smithville, New Jersey, USA
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