August weather forecastGraettinger, IA
August
Weather in August
August, the last month of the summer in Graettinger, is also a moderately hot month, with an average temperature fluctuating between 78.4°F (25.8°C) and 60.1°F (15.6°C).Temperature
Graettinger notes an average high-temperature of a still moderately hot 78.4°F (25.8°C) in August, hardly diverging from July. During August, Graettinger witnesses a consistent average low-temperature of 60.1°F (15.6°C).Humidity
In Graettinger, Iowa, the average relative humidity in August is 80%.Rainfall
In Graettinger, during August, the rain falls for 14.9 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 138 rainfall days, and 26.77" (680mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 54min.On the first day of the month, sunrise is at 6:10 am and sunset at 8:40 pm. On the last day of August, sunrise is at 6:42 am and sunset at 7:55 pm CDT.
Sunshine
In August, the average sunshine in Graettinger, Iowa, is 9.6h.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 5 in August translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Graettinger, IA
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in August: 60.1°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 (10.6°F).
Average pressure in August
Graettinger, IA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Graettinger, IA
- Average wind speed in August: 7.6mph
The windiest months (with the highest average wind speed) are January and April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in August
Graettinger, IA
- Average humidity in August: 80%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Graettinger, IA
- Average rainfall in August: 2.64"
The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in August
Graettinger, IA
- Average rainfall days in August: 14.9 days
The month with the highest number of rainy days is June (20 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in August
Graettinger, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Graettinger, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Graettinger, 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 0min).
- Average sunshine in August: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Graettinger, IA
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in August
Graettinger, 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 February (UV index 1).
Average cloud cover in August
Graettinger, IA
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in August
Graettinger, IA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
