August weather forecastColumbus Junction, IA
August
Weather in August
August, the last month of the summer in Columbus Junction, is another warm month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 63.1°F (17.3°C).Temperature
Columbus Junction transitions into August recording an average high-temperature of a still moderately hot 81.1°F (27.3°C), closely aligning with the preceding month's temperature. Columbus Junction experiences a mean low-temperature of 63.1°F (17.3°C) during August.Heat index
During August, the heat index is computed to be a hot 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in August is 79%.Rainfall
In Columbus Junction, during August, the rain falls for 6.9 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Columbus Junction, during the entire year, the rain falls for 81.9 days and collects up to 6.69" (170mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Columbus Junction, the average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:21 pm. On the last day of August, in Columbus Junction, sunrise is at 6:31 am and sunset at 7:39 pm CDT.
Sunshine
The average sunshine in August in Columbus Junction is 10.1h.UV index
In Columbus Junction, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 5 in August interprets into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. 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
Columbus Junction, IA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in August: 63.1°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 (16.7°F).
Average pressure in August
Columbus Junction, IA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Columbus Junction, IA
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
Columbus Junction, IA
- Average humidity in August: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Columbus Junction, IA
- Average rainfall in August: 0.39"
The wettest month (with the highest rainfall) is May (1.1").
The driest months (with the least rainfall) are February and December (0.28").
Average rainfall days in August
Columbus Junction, IA
- Average rainfall days in August: 6.9 days
The month with the highest number of rainy days is June (11 days).
The month with the least rainy days is January (3 days).
Average snowfall in August
Columbus Junction, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Columbus Junction, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.7 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
Columbus Junction, IA
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in August
Columbus Junction, IA
- Average sunshine days in August: 21.1 days
The month with the most sunshine days is December (25.3 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in August
Columbus Junction, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Columbus Junction, IA
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Columbus Junction, IA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
