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, Decatur's average high-temperature registers at a still moderately hot 78.4°F (25.8°C), indicating a subtle variation from the previous month. August brings an average low-temperature of 60.6°F (15.9°C) to Decatur.Humidity
The average relative humidity in August is 81%.Rainfall
In August, the rain falls for 13.8 days. Throughout August, 1.65" (42mm) of precipitation is accumulated. In Decatur, during the entire year, the rain falls for 139.4 days and collects up to 20" (508mm) of precipitation.Snowfall
In Decatur, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 50min.On the first day of the month, sunrise is at 6:37 am and sunset at 9:02 pm. On the last day of August, sunrise is at 7:09 am and sunset at 8:18 pm EDT.
Sunshine
In August, the average sunshine in Decatur is 9.5h.UV index
The months with the highest UV index in Decatur are June and August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Deflect overexposure. Sun protection is a necessity. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What is the temperature in August in Decatur?
What is the average humidity in August in Decatur?
How much does it rain in Decatur in August?
When it does not snow in Decatur?
What is the average length of the day in August in Decatur?
When are sunrise and sunset in August in Decatur?
How long on average sun shines in August in Decatur?
What is the month with the highest UV index in Decatur?
What is the UV index reading in August in Decatur?
Average temperature in August
Decatur, MI
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in August: 60.6°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Decatur, MI
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are January, March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Decatur, MI
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in August
Decatur, MI
- Average humidity in August: 81%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in August
Decatur, MI
- Average rainfall in August: 1.65"
The wettest month (with the highest rainfall) is June (2.6").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in August
Decatur, MI
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in August
Decatur, MI
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Decatur, MI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Decatur, MI
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in August
Decatur, MI
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is March (14.4 days).
The month with the least sunshine days is January (9.8 days).
Average UV index in August
Decatur, MI
- Average UV index in August: 6
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Decatur, MI
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in August
Decatur, 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).
Decatur, Michigan, USA
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