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
Manchester records a slight change with August's average high-temperatures adjusting to a still warm 78.3°F (25.7°C) from July's 79.3°F (26.3°C). An average low-temperature of 60.4°F (15.8°C) is noted during the nights in August.Humidity
In Manchester, the average relative humidity in August is 82%.Rainfall
In Manchester, in August, it is raining for 10.6 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 111.7 rainfall days, and 13.31" (338mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Manchester.Daylight
In Manchester, the average length of the day in August is 13h and 51min.On the first day of August, sunrise is at 5:58 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:41 pm CDT.
Sunshine
July and August, with an average of 9.6h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index in Manchester, Iowa, are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 5 in August transforms into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August?
How many days does it rain in August in Manchester?
When it does not snow in Manchester?
How many hours of daylight does Manchester have in August?
What time are sunrise and sunset in August?
What is the month with the most sunshine?
How many hours of sunshine does Manchester have in August?
When is the highest UV index?
How high is the UV index in August in Manchester?
Average temperature in August
Manchester, IA
- 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 (24.3°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in August
Manchester, IA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Manchester, IA
- Average wind speed in August: 7.1mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in August
Manchester, IA
- Average humidity in August: 82%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in August
Manchester, IA
- Average rainfall in August: 0.94"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in August
Manchester, IA
- Average rainfall days in August: 10.6 days
The month with the highest number of rainy days is June (15.4 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in August
Manchester, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Manchester, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.8 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
Manchester, IA
- 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 6min).
- Average sunshine in August: 9h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in August
Manchester, IA
- Average sunshine days in August: 17.2 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in August
Manchester, IA
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Manchester, IA
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in August
Manchester, IA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Manchester, Iowa, USA
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