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's commencement is accompanied by an average high-temperature of a still warm 76.8°F (24.9°C), diverging marginally from July's 78.6°F (25.9°C). In Lewis, August nights witness a steady temperature drop to a moderate 55.4°F (13°C).Humidity
In Lewis, the average relative humidity in August is 77%.Rainfall
In August, the rain falls for 16.7 days. Throughout August, 2.56" (65mm) of precipitation is accumulated. Throughout the year, there are 176.9 rainfall days, and 28.27" (718mm) of precipitation is accumulated.Snowfall
In Lewis, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 58min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:31 pm EDT.
Sunshine
In Lewis, the average sunshine in August is 10.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 5 in August translates into this advice:
Take precautions - Protection against sunburn is recommended. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August in Lewis?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Lewis have in August?
When are sunrise and sunset in August?
How long on average sun shines in August?
What is the month with the highest UV index?
How high is the UV index in August?
Average temperature in August
Lewis, NY
- Average high temperature in August: 76.8°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in August: 55.4°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in August
Lewis, NY
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Lewis, NY
- Average wind speed in August: 5.1mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in August
Lewis, NY
- Average humidity in August: 77%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in August
Lewis, NY
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in August
Lewis, NY
- Average rainfall days in August: 16.7 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in August
Lewis, NY
- Average snowfall in August: 0"
The month with the highest snowfall is February (12.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Lewis, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Lewis, 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 54min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in August
Lewis, NY
- Average sunshine days in August: 10.9 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in August
Lewis, NY
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Lewis, NY
- Average cloud cover in August: 33
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in August
Lewis, NY
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Lewis, New York, USA
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