August weather forecast
Washington, IN

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Weather in August

August, the last month of the summer in Washington, is also a moderately hot month, with an average temperature ranging between max 83.5°F (28.6°C) and min 65.5°F (18.6°C).

Temperature

August begins with an average high-temperature of a still moderately hot 83.5°F (28.6°C), reflecting close similarity to the preceding month. During the month of August, the temperature in Washington generally drops to a low average of 65.5°F (18.6°C).

Heat index

For August, the heat index is appraised at a hot 91.4°F (33°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. 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', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

The average relative humidity in August in Washington is 78%.

Rainfall

In Washington, in August, during 12.6 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Washington, during the entire year, the rain falls for 153.1 days and collects up to 31.02" (788mm) of precipitation.

Snowfall

In Washington, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 38min.
On the first day of the month, sunrise is at 6:50 am and sunset at 8:59 pm. On the last day of August, in Washington, sunrise is at 7:17 am and sunset at 8:19 pm EDT.

Sunshine

The average sunshine in August in Washington, Indiana, is 9.3h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In August, the UV index of 6 transforms into the following advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is August in Washington?

The high-temperature, in August, in Washington, is 83.5°F (28.6°C), while the low-temperature averages to 65.5°F (18.6°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 91.4°F (33°C).

What is the average humidity in August in Washington?

The average relative humidity in August is 78%.

How much does it rain in Washington in August?

In Washington, in August, during 12.6 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow in Washington?

In Washington, snow does not fall in May through October.

What is the average length of the day in August in Washington?

In Washington, Indiana, the average day length in August is 13h and 38min.

What time are sunrise and sunset in August in Washington?

On the first day of August in Washington, Indiana, sunrise is at 6:50 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 8:19 pm EDT.

How long on average sun shines in August in Washington?

In August, the average sunshine duration in Washington is 9.3h.

When is the highest UV index in Washington?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Washington?

In Washington, Indiana, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Washington, IN

Average temperature in August - Washington, IN
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in August: 65.5°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

Average pressure in August
Washington, IN

Average pressure in August - Washington, IN
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Washington, IN

Average wind speed in August - Washington, IN
  • Average wind speed in August: 5.6mph

The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in August
Washington, IN

Average humidity in August - Washington, IN
  • Average humidity in August: 78%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Washington, IN

Average rainfall in August - Washington, IN
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in August
Washington, IN

Average rainfall days in August - Washington, IN
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in August
Washington, IN

Average snowfall in August - Washington, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Washington, IN

Average snowfall days in August - Washington, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in August /
Average sunshine in August
Washington, IN

Average daylight in August / Average sunshine in August - Washington, IN
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).

Average sunshine days in August
Washington, IN

Average sunshine days in August - Washington, IN
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is May (10.5 days).

Average UV index in August
Washington, IN

Average UV index in August - Washington, IN
  • 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
Washington, IN

Average cloud cover in August - Washington, IN
  • Average cloud cover in August: 28

The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
Washington, IN

Average visibility in August - Washington, IN
  • 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).

Washington, Indiana, USA

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