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
Keystone ushers in August with an average high-temperature of a still moderately hot 79.2°F (26.2°C), showing a close resemblance to the previous month. August brings an average low-temperature of 61.7°F (16.5°C) to Keystone.Humidity
In Keystone, the average relative humidity in August is 82%.Rainfall
In Keystone, during August, the rain falls for 13 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Keystone, during the entire year, the rain falls for 137.2 days and collects up to 17.95" (456mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Keystone, the average length of the day in August is 13h and 44min.On the first day of the month, sunrise is at 6:38 am and sunset at 8:55 pm. On the last day of August, sunrise is at 7:07 am and sunset at 8:14 pm EDT.
Sunshine
In August, the average sunshine is 9.5h.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 health risk from unsafe exposure to UV radiation for average individuals.Note: In August, a regular UV index of 6 translates into these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Keystone have in August?
When are sunrise and sunset in August?
How many hours of sunshine does Keystone have in August?
When is the highest UV index?
How high is the UV index in August?
Average temperature in August
Keystone, IN
- Average high temperature in August: 79.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in August: 61.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in August
Keystone, IN
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Keystone, IN
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Keystone, IN
- Average humidity in August: 82%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Keystone, IN
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in August
Keystone, IN
- Average rainfall days in August: 13 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in August
Keystone, IN
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Keystone, IN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Keystone, IN
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in August
Keystone, IN
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in August
Keystone, IN
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Keystone, IN
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in August
Keystone, IN
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Keystone, Indiana, USA
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