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
Helena indicates an average high-temperature of a still warm 75.9°F (24.4°C) in August, showing minor variation from July's 77.5°F (25.3°C). An average nighttime temperature of 57.9°F (14.4°C) is recorded during August.Humidity
In Helena, the average relative humidity in August is 81%.Rainfall
The month with the most rainfall is August, when the rain falls for 17.4 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day is 14h and 1min.On the first day of August, sunrise is at 5:45 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:37 pm EDT.
Sunshine
In Helena, the average sunshine in August is 9.9h.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 5 in August transforms into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in August?
What is the average humidity in August?
What is the rainiest month?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Helena have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Helena have in August?
What is the UV index intensity in August?
Average temperature in August
Helena, NY
- Average high temperature in August: 75.9°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in August: 57.9°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in August
Helena, NY
- Average pressure in August: 29.95"Hg
The months with the highest atmospheric pressure are March and November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Helena, NY
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in August
Helena, NY
- Average humidity in August: 81%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in August
Helena, NY
- Average rainfall in August: 3.23"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in August
Helena, NY
- Average rainfall days in August: 17.4 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in August
Helena, NY
- Average snowfall in August: 0"
The month with the highest snowfall is January (9.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Helena, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (17.1 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, NY
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in August
Helena, NY
- Average sunshine days in August: 10.9 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in August
Helena, NY
- 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
Helena, NY
- Average cloud cover in August: 35
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in August
Helena, NY
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Helena, New York, USA
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