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
August brings a marginal elevation to a still warm 81.1°F (27.3°C) from July's 82°F (27.8°C) in Sigourney's average high-temperatures. Throughout the month of August, the average temperature dips to a comfortable 62.8°F (17.1°C) at night.Heat index
August's average heat index is computed to be a hot 86°F (30°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In August, the average relative humidity is 79%.Rainfall
In Sigourney, during August, the rain falls for 12.3 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 137.9 rainfall days, and 27.76" (705mm) of precipitation is accumulated.Snowfall
In Sigourney, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:25 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:42 pm CDT.
Sunshine
In August, the average sunshine is 9.9h.UV index
In Sigourney, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 5 in August transforms into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August?
How much does it rain in Sigourney in August?
When it does not snow?
How many hours of daylight does Sigourney have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Sigourney have in August?
How high is the UV index in August?
Average temperature in August
Sigourney, IA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in August: 62.8°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in August
Sigourney, IA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Sigourney, IA
- Average wind speed in August: 6.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in August
Sigourney, 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 (72%).
Average rainfall in August
Sigourney, IA
- Average rainfall in August: 2.24"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in August
Sigourney, IA
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in August
Sigourney, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Sigourney, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Sigourney, IA
- Average daylight in August: 13h and 5min
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: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in August
Sigourney, IA
- Average sunshine days in August: 15.5 days
The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in August
Sigourney, 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, February, October, November and December (UV index 2).
Average cloud cover in August
Sigourney, IA
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in August
Sigourney, 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).
Sigourney, Iowa, USA
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