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
Lake Hopatcong's temperature records reveal January as the coldest month, marked by average highs of 33.3°F (0.7°C) and lows of 20.7°F (-6.3°C).Humidity
The average relative humidity in January in Lake Hopatcong is 79%.Rainfall
In Lake Hopatcong, during January, the rain falls for 7.5 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Lake Hopatcong, during the entire year, the rain falls for 160.1 days and collects up to 35.87" (911mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Lake Hopatcong, in January, during 10.2 snowfall days, 5.31" (135mm) of snow is typically accumulated. In Lake Hopatcong, during the entire year, snow falls for 40.2 days and aggregates up to 23.62" (600mm) of snow.Daylight
In Lake Hopatcong, the average length of the day in January is 9h and 38min.On the first day of the month, sunrise is at 7:23 am and sunset at 4:40 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:13 pm EST.
Sunshine
The average sunshine in January is 4.6h.UV index
In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In January, an average UV index of 2 transforms into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Lake Hopatcong have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What is the UV index reading in January?
Average temperature in January
Lake Hopatcong, NJ
- Average high temperature in January: 33.3°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 (33.3°F).
- Average low temperature in January: 20.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in January
Lake Hopatcong, 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
Lake Hopatcong, NJ
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Lake Hopatcong, NJ
- Average humidity in January: 79%
The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Lake Hopatcong, NJ
- Average rainfall in January: 2.44"
The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in January
Lake Hopatcong, NJ
- Average rainfall days in January: 7.5 days
The months with the highest number of rainy days are May and July (17.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in January
Lake Hopatcong, NJ
- Average snowfall in January: 5.31"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Lake Hopatcong, NJ
- Average snowfall days in January: 10.2 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Lake Hopatcong, NJ
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in January
Lake Hopatcong, NJ
- Average sunshine days in January: 16.1 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in January
Lake Hopatcong, NJ
- Average UV index in January: 2
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Lake Hopatcong, NJ
- Average cloud cover in January: 49
The months with the most cloud cover are February, March and December (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in January
Lake Hopatcong, NJ
- Average visibility in January: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Lake Hopatcong, New Jersey, USA
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