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
Harvey's August reports an average high-temperature of a still warm 81.3°F (27.4°C), exhibiting a minor difference from July. The low-temperature averages to an enjoyable 62.6°F (17°C) during the nights of August.Heat index
The heat index for August is estimated at a hot 87.8°F (31°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
The average relative humidity in August is 79%.Rainfall
In August, the rain falls for 11.5 days. Throughout August, 1.06" (27mm) of precipitation is accumulated. In Harvey, during the entire year, the rain falls for 109.6 days and collects up to 12.28" (312mm) of precipitation.Snowfall
In Harvey, snow does not fall in June through September.Daylight
In Harvey, the average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 6:07 am and sunset at 8:28 pm. On the last day of August, sunrise is at 6:37 am and sunset at 7:45 pm CDT.
Sunshine
In August, the average sunshine is 9.8h.UV index
In Harvey, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 5 in August translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Harvey in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August?
How long on average sun shines in August?
How high is the UV index in August?
Average temperature in August
Harvey, IA
- Average high temperature in August: 81.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in August: 62.6°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 (14.9°F).
Average pressure in August
Harvey, 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
Harvey, IA
- Average wind speed in August: 6.9mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in August
Harvey, IA
- Average humidity in August: 79%
The months with the highest relative humidity are January, February, June and July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Harvey, IA
- Average rainfall in August: 1.06"
The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are January and February (0.43").
Average rainfall days in August
Harvey, IA
- Average rainfall days in August: 11.5 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in August
Harvey, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Harvey, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Harvey, 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
Harvey, IA
- Average sunshine days in August: 16.9 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in August
Harvey, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Harvey, IA
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in August
Harvey, IA
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Harvey, Iowa, USA
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