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 onset of August, a modest change to a still warm 77.4°F (25.2°C) from July's 79.3°F (26.3°C) is noted in high-temperature. Throughout the month of August, Rockwell observes an average nighttime temperature of 60.3°F (15.7°C).Humidity
The average relative humidity in August is 82%.Rainfall
In Rockwell, in August, during 15.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Rockwell, Iowa, during the entire year, the rain falls for 145.9 days and collects up to 28.82" (732mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Rockwell, the average length of the day in August is 13h and 53min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:33 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:48 pm CDT.
Sunshine
In Rockwell, the average sunshine in August is 9.7h.UV index
In August, the average daily maximum UV index in Rockwell is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In August, the maximum UV index of 5 suggests this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rockwell in August?
What is the average humidity in August in Rockwell?
How many days does it rain in August in Rockwell?
When it does not snow?
How many hours of daylight does Rockwell have in August?
When is the sunrise / sunset in August in Rockwell?
How many hours of sunshine does Rockwell have in August?
How high is the UV index in August?
Average temperature in August
Rockwell, IA
- Average high temperature in August: 77.4°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 (22.3°F).
- Average low temperature in August: 60.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in August
Rockwell, IA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Rockwell, IA
- Average wind speed in August: 7.3mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in August
Rockwell, IA
- Average humidity in August: 82%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Rockwell, IA
- Average rainfall in August: 2.8"
The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in August
Rockwell, IA
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in August
Rockwell, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Rockwell, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Rockwell, 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: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in August
Rockwell, IA
- Average sunshine days in August: 13 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8 days).
Average UV index in August
Rockwell, IA
- Average UV index in August: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Rockwell, IA
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Rockwell, IA
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Rockwell, Iowa, USA
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