August weather forecastLake Hopatcong, NJ
August
Weather in August
The last month of the summer, August, is another warm month in Lake Hopatcong, New Jersey, with an average temperature ranging between max 80.4°F (26.9°C) and min 61.3°F (16.3°C).Temperature
August's advent denotes a minor fluctuation in the average high-temperature to a still warm 80.4°F (26.9°C) from July's 82.4°F (28°C). The average nighttime temperature lowers to a comfortable 61.3°F (16.3°C) throughout August.Humidity
In August, the average relative humidity is 78%.Rainfall
In Lake Hopatcong, in August, during 16.5 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 160.1 rainfall days, and 35.87" (911mm) of precipitation is accumulated.Snowfall
In Lake Hopatcong, snow does not fall in June through September.Daylight
In Lake Hopatcong, the average length of the day in August is 13h and 46min.On the first day of August, sunrise is at 5:55 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:32 pm EDT.
Sunshine
In Lake Hopatcong, New Jersey, the average sunshine in August is 9.7h.UV index
In Lake Hopatcong, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In August, the maximum UV index of 5 translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lake Hopatcong, NJ
- Average high temperature in August: 80.4°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 August: 61.3°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 August
Lake Hopatcong, NJ
- Average pressure in August: 29.99"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 August
Lake Hopatcong, NJ
- Average wind speed in August: 5mph
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 August
Lake Hopatcong, NJ
- Average humidity in August: 78%
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 August
Lake Hopatcong, NJ
- Average rainfall in August: 3.11"
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 August
Lake Hopatcong, NJ
- Average rainfall days in August: 16.5 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 August
Lake Hopatcong, NJ
- Average snowfall in August: 0"
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 August
Lake Hopatcong, NJ
- Average snowfall days in August: 0 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 August /
Average sunshine in August
Lake Hopatcong, NJ
- Average daylight in August: 13h and 48min
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 August: 9h and 42min
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 August
Lake Hopatcong, NJ
- Average sunshine days in August: 12.3 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 August
Lake Hopatcong, NJ
- Average UV index in August: 5
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 August
Lake Hopatcong, NJ
- Average cloud cover in August: 37
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 August
Lake Hopatcong, NJ
- Average visibility in August: 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).





