August weather forecastLewiston, NY
August
Weather in August
The last month of the summer, August, is another warm month in Lewiston, New York, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 64.9°F (18.3°C).Temperature
As July turns into August, the average high-temperatures rest at a still warm 77.2°F (25.1°C), showing a minor variation from the prior month. Lewiston's nighttime temperature in August drops to an average of 64.9°F (18.3°C).Humidity
August and September, with an average relative humidity of 74%, are the least humid months.Rainfall
In August, in Lewiston, the rain falls for 17.3 days. Throughout August, 2.68" (68mm) of precipitation is accumulated. In Lewiston, during the entire year, the rain falls for 169.3 days and collects up to 30.31" (770mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 13h and 54min.On the first day of August, sunrise is at 6:07 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:52 pm EDT.
Sunshine
In Lewiston, the average sunshine in August is 10.5h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index in Lewiston. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 6 in August transforms into this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lewiston, NY
- Average high temperature in August: 77.2°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in August: 64.9°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in August
Lewiston, NY
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Lewiston, NY
- Average wind speed in August: 7.6mph
The windiest month (with the highest average wind speed) is January (12.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in August
Lewiston, NY
- Average humidity in August: 74%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in August
Lewiston, NY
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in August
Lewiston, NY
- Average rainfall days in August: 17.3 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in August
Lewiston, NY
- Average snowfall in August: 0"
The month with the highest snowfall is February (7.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Lewiston, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Lewiston, NY
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in August
Lewiston, NY
- Average sunshine days in August: 10.9 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in August
Lewiston, NY
- Average UV index in August: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Lewiston, NY
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Lewiston, NY
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
