Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August's average high-temperature stands at a still warm 80.4°F (26.9°C), showing little deviation from July's 81.5°F (27.5°C). The average nighttime temperature lowers to a pleasant 69.1°F (20.6°C) throughout August.Humidity
The average relative humidity in August is 75%.Rainfall
In Jerseyville, during August, the rain falls for 15.3 days and regularly aggregates up to 3.31" (84mm) of precipitation. In Jerseyville, during the entire year, the rain falls for 162 days and collects up to 32.2" (818mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Jerseyville, the average length of the day in August is 13h and 43min.On the first day of August in Jerseyville, sunrise is at 5:55 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:29 pm EDT.
Sunshine
The average sunshine in August is 10.6h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 6 translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Jerseyville in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Jerseyville have in August?
When are sunrise and sunset in August?
How long on average sun shines in August in Jerseyville?
When is the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Jerseyville, NJ
- Average high temperature in August: 80.4°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in August: 69.1°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in August
Jerseyville, NJ
- Average pressure in August: 29.98"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
Jerseyville, NJ
- Average wind speed in August: 7.2mph
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 August
Jerseyville, NJ
- Average humidity in August: 75%
The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in August
Jerseyville, NJ
- Average rainfall in August: 3.31"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in August
Jerseyville, NJ
- Average rainfall days in August: 15.3 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in August
Jerseyville, NJ
- Average snowfall in August: 0"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Jerseyville, NJ
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Jerseyville, NJ
- Average daylight in August: 13h 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 August: 10h and 4min
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 August
Jerseyville, NJ
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in August
Jerseyville, NJ
- Average UV index in August: 6
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, March, November and December (UV index 2).
Average cloud cover in August
Jerseyville, NJ
- Average cloud cover in August: 28
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 August
Jerseyville, NJ
- Average visibility in August: 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).
Jerseyville, New Jersey, USA
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