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
Rowan observes a minor difference in average high-temperatures between July's 79.7°F (26.5°C) and August's 77.9°F (25.5°C). An average low-temperature of 60.3°F (15.7°C) is expected during August.Humidity
The average relative humidity in August in Rowan is 82%.Rainfall
In Rowan, in August, it is raining for 14.3 days, with typically 2.64" (67mm) of accumulated precipitation. In Rowan, during the entire year, the rain falls for 136.3 days and collects up to 26.18" (665mm) of precipitation.Snowfall
In Rowan, snow does not fall in June through September.Daylight
In Rowan, the average length of the day in August is 13h and 52min.On the first day of August, sunrise is at 6:06 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:49 pm CDT.
Sunshine
The average sunshine in August in Rowan is 9.7h.UV index
In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Rowan have in August?
When is the sunrise / sunset in August?
How long on average sun shines in August?
What is the UV index reading in August?
Average temperature in August
Rowan, IA
- Average high temperature in August: 77.9°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in August: 60.3°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 (10.8°F).
Average pressure in August
Rowan, 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
Rowan, IA
- Average wind speed in August: 7.4mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in August
Rowan, IA
- Average humidity in August: 82%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Rowan, IA
- Average rainfall in August: 2.64"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in August
Rowan, IA
- Average rainfall days in August: 14.3 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in August
Rowan, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Rowan, 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
Rowan, 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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Rowan, IA
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (10 days).
Average UV index in August
Rowan, 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, February, March, October, November and December (UV index 2).
Average cloud cover in August
Rowan, IA
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in August
Rowan, IA
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Rowan, Iowa, USA
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