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
As July turns into August, the average high-temperatures rest at a still moderately hot 82.2°F (27.9°C), showing a minor variation from the prior month. An average low-temperature of 63.7°F (17.6°C) is common during the nights of August.Heat index
In August, the average heat index is calculated to be a tropical 89.6°F (32°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In August, the average relative humidity is 79%.Rainfall
In August, the rain falls for 12.6 days. Throughout August, 2.13" (54mm) of precipitation is accumulated. Throughout the year, in Bethesda, there are 114.9 rainfall days, and 18.39" (467mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day in Bethesda, Iowa, is 13h and 45min.On the first day of the month, sunrise is at 6:17 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:47 am and sunset at 7:53 pm CDT.
Sunshine
In Bethesda, the average sunshine in August is 10h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Bethesda. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the average August temperature in Bethesda?
What is the average humidity in August in Bethesda?
How many days does it rain in August in Bethesda?
When it does not snow in Bethesda?
What is the average length of the day in August in Bethesda?
When is the sunrise / sunset in August in Bethesda?
How long on average sun shines in August in Bethesda?
What are the months with the highest UV index in Bethesda?
What is the UV index reading in August in Bethesda?
Average temperature in August
Bethesda, IA
- Average high temperature in August: 82.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in August: 63.7°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in August
Bethesda, IA
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Bethesda, IA
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in August
Bethesda, IA
- Average humidity in August: 79%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in August
Bethesda, IA
- Average rainfall in August: 2.13"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in August
Bethesda, IA
- Average rainfall days in August: 12.6 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in August
Bethesda, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Bethesda, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Bethesda, 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: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in August
Bethesda, IA
- Average sunshine days in August: 15 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in August
Bethesda, IA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Bethesda, IA
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in August
Bethesda, 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).
Bethesda, Iowa, USA
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