August weather forecastSaint Olaf, IA
August
Weather in August
August, the last month of the summer in Saint Olaf, is another warm month, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 77.7°F (25.4°C).Temperature
August's climate shows a minor adjustment in average high-temperatures to a still warm 77.7°F (25.4°C) from July's 79.3°F (26.3°C). Saint Olaf records a consistent low-temperature of 59.9°F (15.5°C) during August nights.Humidity
In August, the average relative humidity is 81%.Rainfall
In Saint Olaf, in August, during 13.4 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, there are 138 rainfall days, and 29.21" (742mm) of precipitation is accumulated.Snowfall
In Saint Olaf, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 53min.On the first day of August, sunrise is at 5:57 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:41 pm CDT.
Sunshine
The month with the most sunshine is August, with an average of 9.9h of sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 5 in August transforms into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint Olaf, IA
- Average high temperature in August: 77.7°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 (23.5°F).
- Average low temperature in August: 59.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in August
Saint Olaf, IA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Saint Olaf, IA
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
Saint Olaf, IA
- Average humidity in August: 81%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in August
Saint Olaf, IA
- Average rainfall in August: 2.13"
The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in August
Saint Olaf, IA
- Average rainfall days in August: 13.4 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in August
Saint Olaf, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Saint Olaf, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Saint Olaf, IA
- Average daylight in August: 13h and 54min
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 54min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Saint Olaf, IA
- Average sunshine days in August: 15 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in August
Saint Olaf, IA
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Saint Olaf, IA
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in August
Saint Olaf, IA
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
