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, Monmouth experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 79.3°F (26.3°C), closely mirroring the climate in July. In August, Monmouth records an average nighttime temperature of 61.3°F (16.3°C).Humidity
The average relative humidity in August is 81%.Rainfall
In Monmouth, in August, it is raining for 13.8 days, with typically 2.01" (51mm) of accumulated precipitation. In Monmouth, during the entire year, the rain falls for 143.3 days and collects up to 29.76" (756mm) of precipitation.Snowfall
In Monmouth, Iowa, snow does not fall in May 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 5:57 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:38 pm CDT.
Sunshine
The average sunshine in August is 9.8h.UV index
In Monmouth, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 in August translates into these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. To protect against the Sun's most potent rays, avoid direct exposure around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures?
What is the average humidity in August?
How much does it rain in August?
When it does not snow in Monmouth?
How many hours of daylight does Monmouth have in August?
When is the sunrise / sunset in August?
How many hours of sunshine does Monmouth have in August?
How high is the UV index in August?
Average temperature in August
Monmouth, IA
- Average high temperature in August: 79.3°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 (25.9°F).
- Average low temperature in August: 61.3°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in August
Monmouth, IA
- Average pressure in August: 29.97"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
Monmouth, IA
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
Monmouth, IA
- Average humidity in August: 81%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Monmouth, IA
- Average rainfall in August: 2.01"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in August
Monmouth, IA
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in August
Monmouth, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (5.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Monmouth, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11 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
Monmouth, 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 months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in August
Monmouth, IA
- Average sunshine days in August: 15.2 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in August
Monmouth, IA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Monmouth, IA
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in August
Monmouth, 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).
Monmouth, Iowa, USA
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