August weather forecast
Lewisville, ID

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Weather in August

The last month of the summer, August, is another warm month in Lewisville, Idaho, with an average temperature ranging between max 83.3°F (28.5°C) and min 53.8°F (12.1°C).

Temperature

August's advent presents an average high-temperature of a still warm 83.3°F (28.5°C), indicating a slight variation from the conditions of the previous month. Lewisville, in the heat of August, registers a significant plunge to a mean of 53.8°F (12.1°C) during the nights.

Humidity

With an average relative humidity of 37%, August is the least humid month.

Rainfall

In Lewisville, in August, during 7.3 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Lewisville, during the entire year, the rain falls for 112.3 days and collects up to 10.94" (278mm) of precipitation.

Snowfall

June through August are months without snowfall.

Daylight

In August, the average length of the day in Lewisville is 13h and 56min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:50 pm. On the last day of August, sunrise is at 6:51 am and sunset at 8:04 pm MDT.

Sunshine

In Lewisville, the average sunshine in August is 11.8h.

UV index

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: In August, the UV index of 5 transforms into the following advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August?

Lewisville in August has an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 53.8°F (12.1°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 37%.

What is the average humidity in August?

The average relative humidity in August is 37%.

How many days does it rain in August?

In August, the rain falls for 7.3 days. Throughout August, 0.55" (14mm) of precipitation is accumulated.

When it does not snow?

June through August are months without snowfall.

Does it snow in August?

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

How many hours of daylight does Lewisville have in August?

The average day length in August is 13h and 56min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:18 am and sunset at 8:50 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 8:04 pm MDT.

How long on average sun shines in August?

The average sunshine duration in August is 11.8h.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from 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
Lewisville, ID

Average temperature in August - Lewisville, ID
  • Average high temperature in August: 83.3°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (27.1°F).

  • Average low temperature in August: 53.8°F

The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).

Average pressure in August
Lewisville, ID

Average pressure in August - Lewisville, ID
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Lewisville, ID

Average wind speed in August - Lewisville, ID
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

Average humidity in August
Lewisville, ID

Average humidity in August - Lewisville, ID
  • Average humidity in August: 37%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (37%).

Average rainfall in August
Lewisville, ID

Average rainfall in August - Lewisville, ID
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in August
Lewisville, ID

Average rainfall days in August - Lewisville, ID
  • Average rainfall days in August: 7.3 days

The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is July (5.8 days).

Average snowfall in August
Lewisville, ID

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

The month with the highest snowfall is January (8.31").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Lewisville, ID

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

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in August / Average sunshine in August - Lewisville, ID
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in August
Lewisville, ID

Average sunshine days in August - Lewisville, ID
  • Average sunshine days in August: 19.5 days

The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is February (9.9 days).

Average UV index in August
Lewisville, ID

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

Average cloud cover in August
Lewisville, ID

Average cloud cover in August - Lewisville, ID
  • Average cloud cover in August: 11

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).

Average visibility in August
Lewisville, ID

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

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

Lewisville, Idaho, USA

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