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
August records an average high-temperature of a still moderately hot 84.2°F (29°C), indicating a minor variation from the preceding month. During August nights, Helena records an average temperature of 63.5°F (17.5°C).Heat index
The heat index value during August is estimated at a hot 93.2°F (34°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
August is the least humid month in Helena, with an average relative humidity of 75%.Rainfall
In August, in Helena, Kentucky, the rain falls for 12.8 days. Throughout August, 1.42" (36mm) of precipitation is accumulated. In Helena, during the entire year, the rain falls for 143.3 days and collects up to 17.36" (441mm) of precipitation.Snowfall
May through September are months without snowfall in Helena.Daylight
In August, the average length of the day in Helena, Kentucky, is 13h and 37min.On the first day of August in Helena, sunrise is at 6:37 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 8:06 pm EDT.
Sunshine
With an average of 10.2h of sunshine, August has the most sunshine of the year.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Helena. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 6 in August suggests the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Helena in August?
What is the least humid month in Helena?
What is the average humidity in August in Helena?
How many days does it rain in August in Helena?
When it does not snow in Helena?
What is the average length of the day in August in Helena?
When are sunrise and sunset in August in Helena?
What month has the most sunshine in Helena?
How many hours of sunshine does Helena have in August?
What are the months with the highest UV index in Helena?
What is the UV index intensity in August in Helena?
Average temperature in August
Helena, KY
- Average high temperature in August: 84.2°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in August: 63.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in August
Helena, KY
- Average pressure in August: 30"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in August
Helena, KY
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in August
Helena, KY
- Average humidity in August: 75%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in August
Helena, KY
- Average rainfall in August: 1.42"
The wettest month (with the highest rainfall) is July (1.93").
The driest months (with the least rainfall) are January, September and October (1.06").
Average rainfall days in August
Helena, KY
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in August
Helena, KY
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Helena, KY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Helena, KY
- 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: 10h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Helena, KY
- Average sunshine days in August: 15.2 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in August
Helena, KY
- Average UV index in August: 6
The months with the highest UV index are May, 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
Helena, KY
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Helena, KY
- Average visibility in August: 6mi
The months with the highest visibility are March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are January, February, May, July and September (5mi).
Helena, Kentucky, USA
Weather forecast for your location
2. Allow the app to use your location