August weather forecastHayden, ID
August
Weather in August
August replicates July's weather patterns with temperatures staying high, maintaining an average high of 82°F (27.8°C). The rainfall, too, remains unchanged at 0.43" (11mm), signifying a continuation of the dry spell. August is essentially a mirror month in terms of weather extending the dry, warm summer well into the year. Given the arid climate, water scarcity could become a concern, emphasizing the need for prudent use. However, the abundance of sunshine and extended daylight mark August as an optimal period for outdoor activities, particularly water sports.Temperature
August is the month when Hayden, Idaho, experiences its warmest temperatures, averaging a high of 82°F (27.8°C) and a low of 51.8°F (11°C).Heat index
The average heat index in August is evaluated at 82.4°F (28°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The least humid month is August, with an average relative humidity of 48%.Rainfall
The months with the least rainfall in Hayden are July and August Rain falls for 5.6 days and accumulates 0.43" (11mm) of rain.Snowfall
In Hayden, snow does not fall in June through August.Daylight
In Hayden, the average length of the day in August is 14h and 13min.On the first day of the month, sunrise is at 5:25 am and sunset at 8:21 pm. On the last day of August, sunrise is at 6:05 am and sunset at 7:29 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 11.9h of sunshine.UV index
In August, the average daily maximum UV index in Hayden, Idaho, is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, an average UV index of 5 transforms into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Hayden, ID
- Average high temperature in August: 82°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in August: 51.8°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).
Average pressure in August
Hayden, ID
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in August
Hayden, ID
- Average wind speed in August: 4.1mph
The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).
Average humidity in August
Hayden, ID
- Average humidity in August: 48%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (48%).
Average rainfall in August
Hayden, ID
- Average rainfall in August: 0.43"
The wettest month (with the highest rainfall) is January (3.27").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in August
Hayden, ID
- Average rainfall days in August: 5.6 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in August
Hayden, ID
- Average snowfall in August: 0"
The month with the highest snowfall is January (16.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Hayden, ID
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Hayden, ID
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in August
Hayden, ID
- Average sunshine days in August: 22.7 days
The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in August
Hayden, ID
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in August
Hayden, ID
- Average cloud cover in August: 13
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in August
Hayden, ID
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).





