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 is a still warm 79.7°F (26.5°C), maintaining a close comparison with July's 81°F (27.2°C). An average low-temperature of 62.1°F (16.7°C) is observed during August nights.Humidity
In Marengo, the average relative humidity in August is 80%.Rainfall
In Marengo, in August, during 14.1 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in Marengo, there are 141.8 rainfall days, and 29.61" (752mm) of precipitation is accumulated.Snowfall
In Marengo, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 49min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:26 pm. On the last day of August, sunrise is at 6:33 am and sunset at 7:42 pm CDT.
Sunshine
The average sunshine in August in Marengo is 9.8h.UV index
The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature in Marengo?
What is the average humidity in August in Marengo?
How much does it rain in Marengo in August?
When it does not snow in Marengo?
What is the average length of the day in August in Marengo?
When is the sunrise / sunset in August in Marengo?
How many hours of sunshine does Marengo have in August?
What is the UV index intensity in August in Marengo?
Average temperature in August
Marengo, IA
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in August: 62.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in August
Marengo, IA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Marengo, IA
- Average wind speed in August: 7mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in August
Marengo, IA
- Average humidity in August: 80%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Marengo, IA
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in August
Marengo, IA
- Average rainfall days in August: 14.1 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in August
Marengo, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Marengo, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Marengo, 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 12min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Marengo, IA
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in August
Marengo, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Marengo, IA
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in August
Marengo, IA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Marengo, Iowa, USA
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