August weather forecastLong Grove, IA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Long Grove, Iowa, with an average temperature fluctuating between 62.6°F (17°C) and 80.2°F (26.8°C).Temperature
The high-temperature average in August for Long Grove is a still warm 80.2°F (26.8°C), staying closely aligned with July's conditions. An average minimum temperature of 62.6°F (17°C) marks the month of August.Humidity
In August, the average relative humidity is 80%.Rainfall
In August, the rain falls for 11.9 days. Throughout August, 1.1" (28mm) of precipitation is accumulated. In Long Grove, during the entire year, the rain falls for 113.5 days and collects up to 14.25" (362mm) of precipitation.Snowfall
In Long Grove, snow does not fall in May through September.Daylight
In Long Grove, Iowa, the average length of the day in August is 13h and 48min.On the first day of August in Long Grove, sunrise is at 5:57 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:36 pm CDT.
Sunshine
The average sunshine in August in Long Grove is 10.1h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In August, the maximum UV index of 6 translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. 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
Average temperature in August
Long Grove, IA
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in August: 62.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in August
Long Grove, 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
Long Grove, IA
- Average wind speed in August: 6.7mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in August
Long Grove, IA
- Average humidity in August: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Long Grove, IA
- Average rainfall in August: 1.1"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is December (0.51").
Average rainfall days in August
Long Grove, IA
- Average rainfall days in August: 11.9 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in August
Long Grove, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Long Grove, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.3 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
Long Grove, IA
- Average daylight in August: 13h and 48min
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: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Long Grove, IA
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is June (12.9 days).
Average UV index in August
Long Grove, IA
- Average UV index in August: 6
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Long Grove, IA
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July, August and September (Cloud cover 30).
Average visibility in August
Long Grove, IA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
