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
In August, Greenville experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 78.3°F (25.7°C), closely mirroring the climate in July. Greenville's temperature lowers to a mean of 59.5°F (15.3°C) during the nights in August.Humidity
In Greenville, the average relative humidity in August is 79%.Rainfall
In Greenville, during August, the rain falls for 12.6 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Greenville, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Greenville, the average length of the day in August is 13h and 53min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:41 pm. On the last day of August, in Greenville, sunrise is at 6:44 am and sunset at 7:56 pm CDT.
Sunshine
In Greenville, the average sunshine in August is 9.6h.UV index
The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 during August translates into the following guidance:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are the temperatures in Greenville in August?
What is the average humidity in August in Greenville?
How many days does it rain in August in Greenville?
When it does not snow in Greenville?
What is the average length of the day in August in Greenville?
When is the sunrise / sunset in August in Greenville?
How many hours of sunshine does Greenville have in August?
What is the UV index intensity in August in Greenville?
Average temperature in August
Greenville, IA
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in August: 59.5°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in August
Greenville, IA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Greenville, IA
- Average wind speed in August: 7.8mph
The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in August
Greenville, IA
- Average humidity in August: 79%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Greenville, IA
- Average rainfall in August: 1.61"
The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in August
Greenville, IA
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in August
Greenville, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Greenville, 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 June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Greenville, IA
- 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Greenville, IA
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in August
Greenville, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in August
Greenville, IA
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in August
Greenville, IA
- 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).
Greenville, Iowa, USA
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