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
With the arrival of August, Jamestown's average high-temperature registers at a still moderately hot 78.3°F (25.7°C), indicating a subtle variation from the previous month. An average minimum temperature of 61.2°F (16.2°C) marks the month of August in Jamestown.Humidity
In August, the average relative humidity is 78%.Rainfall
In August, the rain falls for 11 days. Throughout August, 0.98" (25mm) of precipitation is accumulated. Throughout the year, in Jamestown, there are 115 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in August is 13h and 52min.On the first day of the month, sunrise is at 6:35 am and sunset at 9:03 pm. On the last day of August, sunrise is at 7:07 am and sunset at 8:19 pm EDT.
Sunshine
In Jamestown, the average sunshine in August is 9.9h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In August, the UV index of 6 transforms into the following advice:
Guard oneself from overexposure. Defence against sun injury is vital. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August?
What is the average humidity in August?
How much does it rain in Jamestown in August?
When it does not snow?
How many hours of daylight does Jamestown have in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What are the months with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Jamestown, MI
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in August: 61.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in August
Jamestown, MI
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Jamestown, MI
- Average wind speed in August: 6.8mph
The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in August
Jamestown, MI
- Average humidity in August: 78%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in August
Jamestown, MI
- Average rainfall in August: 0.98"
The wettest month (with the highest rainfall) is October (1.3").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in August
Jamestown, MI
- Average rainfall days in August: 11 days
The month with the highest number of rainy days is October (14 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in August
Jamestown, MI
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Jamestown, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Jamestown, MI
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in August
Jamestown, MI
- Average sunshine days in August: 17.2 days
The month with the most sunshine days is March (17.8 days).
The month with the least sunshine days is January (10.2 days).
Average UV index in August
Jamestown, MI
- 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 and December (UV index 1).
Average cloud cover in August
Jamestown, MI
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in August
Jamestown, MI
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Jamestown, Michigan, USA
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