August weather forecast
Winchester, ID

Share

Weather in August

August, the last month of the summer in Winchester, is also a moderately hot month, with an average temperature fluctuating between 54.7°F (12.6°C) and 82°F (27.8°C).

Temperature

Temperature records mark August as the warmest month, with highs averaging 82°F (27.8°C) and lows at 54.7°F (12.6°C).

Heat index

August's mean heat index is estimated at 82.4°F (28°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. 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 particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The least humid month is August, with an average relative humidity of 44%.

Rainfall

In August, in Winchester, Idaho, the rain falls for 6.9 days. Throughout August, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 133.5 rainfall days, and 28.9" (734mm) of precipitation is accumulated.

Snowfall

In Winchester, snow does not fall in July and August.

Daylight

In Winchester, Idaho, the average length of the day in August is 14h and 6min.
On the first day of August, sunrise is at 5:29 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 7:26 pm PDT.

Sunshine

August has the most sunshine of the year in Winchester, with an average of 11.9h of sunshine.

UV index

In Winchester, Idaho, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 in August converts into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
[Resources]

Frequently asked questions

What part of the year is the hottest in Winchester?

August temperatures in Winchester tend to peak at an average high of 82°F (27.8°C) and dip to a low of 54.7°F (12.6°C).

What is the temperature in August in Winchester?

In August, the average high-temperature and low-temperature are 82°F (27.8°C) and 54.7°F (12.6°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is estimated at 82.4°F (28°C).

What is the least humid month in Winchester?

August is the least humid month in Winchester, Idaho, with an average relative humidity of 44%.

What is the average humidity in August in Winchester?

In August, the average relative humidity is 44%.

How many days does it rain in August in Winchester?

In Winchester, during August, the rain falls for 6.9 days and regularly aggregates up to 0.71" (18mm) of precipitation.

When it does not snow in Winchester?

In Winchester, Idaho, snow does not fall in July and August.

Does it snow in Winchester in August?

In Winchester, Idaho, in August, it doesn't snow. In September, it regularly snows.

How many hours of daylight does Winchester have in August?

In August, the average day length is 14h and 6min.

What time are sunrise and sunset in August in Winchester?

In August, on the first day of the month, sunrise is at 5:29 am and sunset at 8:16 pm. On the last day of the month, in Winchester, Idaho, sunrise is at 6:06 am and sunset at 7:26 pm PDT.

What month has the most sunshine in Winchester?

August has the most sunshine of the year in Winchester, with an average of 11.9h of sunshine.

How many hours of sunshine does Winchester have in August?

In Winchester, the average sunshine duration in August is 11.9h.

How high is the UV index in August in Winchester?

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Winchester, ID

Average temperature in August - Winchester, 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 (32.5°F).

  • Average low temperature in August: 54.7°F

The month with the highest average low temperature is August (54.7°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

[Resources]

Average pressure in August
Winchester, ID

Average pressure in August - Winchester, ID
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

[Resources]

Average wind speed in August
Winchester, ID

Average wind speed in August - Winchester, ID
  • Average wind speed in August: 3.6mph

The windiest months (with the highest average wind speed) are January, February, March and November (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

[Resources]

Average humidity in August
Winchester, ID

Average humidity in August - Winchester, ID
  • Average humidity in August: 44%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (44%).

[Resources]

Average rainfall in August
Winchester, ID

Average rainfall in August - Winchester, ID
  • Average rainfall in August: 0.71"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is July (0.63").

[Resources]

Average rainfall days in August
Winchester, ID

Average rainfall days in August - Winchester, ID
  • Average rainfall days in August: 6.9 days

The month with the highest number of rainy days is April (17.8 days).
The month with the least rainy days is January (6 days).

[Resources]

Average snowfall in August
Winchester, ID

Average snowfall in August - Winchester, ID
  • Average snowfall in August: 0"

The month with the highest snowfall is February (23.11").
The months with the least snowfall are July and August (0").

[Resources]

Average snowfall days in August
Winchester, ID

Average snowfall days in August - Winchester, ID
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (19.9 days).
The months with the least snowfall days are July and August (0 days).

[Resources]

Average daylight in August /
Average sunshine in August
Winchester, ID

Average daylight in August / Average sunshine in August - Winchester, ID
  • Average daylight in August: 14h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

[Resources]

Average sunshine days in August
Winchester, ID

Average sunshine days in August - Winchester, ID
  • Average sunshine days in August: 21 days

The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.3 days).

[Resources]

Average UV index in August
Winchester, ID

Average UV index in August - Winchester, 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 and December (UV index 1).

[Resources]

Average cloud cover in August
Winchester, ID

Average cloud cover in August - Winchester, ID
  • Average cloud cover in August: 13

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 13).

[Resources]

Average visibility in August
Winchester, ID

Average visibility in August - Winchester, ID
  • Average visibility in August: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

[Resources]

Winchester, Idaho, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location