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 Adelphia, January is the coldest month, with temperatures averaging a high of 37.8°F (3.2°C) and a low of 27°F (-2.8°C).Humidity
The months with the lowest humidity are January, March and April, with an average relative humidity of 74%.Rainfall
In Adelphia, New Jersey, in January, it is raining for 9.6 days, with typically 2.2" (56mm) of accumulated precipitation. In Adelphia, during the entire year, the rain falls for 164.1 days and collects up to 34.53" (877mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Adelphia, in January, snow falls for 5.7 days, with typically accumulated 1.89" (48mm) of snow. Throughout the year, there are 20.4 snowfall days, and 8.19" (208mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 42min.On the first day of January, sunrise is at 7:19 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:13 pm EST.
Sunshine
The average sunshine in January is 5.2h.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 reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What is the least humid month?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Adelphia have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Adelphia, NJ
- Average high temperature in January: 37.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in January: 27°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in January
Adelphia, NJ
- Average pressure in January: 30.07"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
Adelphia, NJ
- Average wind speed in January: 10.3mph
The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in January
Adelphia, NJ
- Average humidity in January: 74%
The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March and April (74%).
Average rainfall in January
Adelphia, NJ
- Average rainfall in January: 2.2"
The wettest months (with the highest rainfall) are July and December (3.7").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in January
Adelphia, NJ
- Average rainfall days in January: 9.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (9.6 days).
Average snowfall in January
Adelphia, NJ
- Average snowfall in January: 1.89"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Adelphia, NJ
- Average snowfall days in January: 5.7 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Adelphia, 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
Adelphia, NJ
- Average sunshine days in January: 17.6 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in January
Adelphia, 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
Adelphia, NJ
- Average cloud cover in January: 43
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in January
Adelphia, 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).
Adelphia, New Jersey, USA
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