August weather forecastMount Morris, NY
August
Weather in August
The last month of the summer, August, is another warm month in Mount Morris, New York, with an average temperature varying between 77.5°F (25.3°C) and 57.7°F (14.3°C).Temperature
The introduction of August notes a subtle temperature variation to a still warm 77.5°F (25.3°C) from July's 79°F (26.1°C). Mount Morris sees an average low-temperature of 57.7°F (14.3°C) during August.Humidity
In August, the average relative humidity in Mount Morris is 78%.Rainfall
In Mount Morris, in August, it is raining for 10.8 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 108.9 rainfall days, and 7.8" (198mm) of precipitation is accumulated.Snowfall
In Mount Morris, snow does not fall in June through September.Daylight
In Mount Morris, New York, the average length of the day in August is 13h and 52min.On the first day of August, sunrise is at 6:03 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:47 pm EDT.
Sunshine
In Mount Morris, the average sunshine in August is 10.2h.UV index
In Mount Morris, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 5 in August translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mount Morris, NY
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in August: 57.7°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in August
Mount Morris, NY
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Mount Morris, NY
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in August
Mount Morris, NY
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (77%).
Average rainfall in August
Mount Morris, NY
- Average rainfall in August: 0.79"
The wettest month (with the highest rainfall) is July (1.02").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in August
Mount Morris, NY
- Average rainfall days in August: 10.8 days
The month with the highest number of rainy days is May (12.6 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in August
Mount Morris, NY
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Mount Morris, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Mount Morris, 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 12min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 48min).
Average sunshine days in August
Mount Morris, NY
- Average sunshine days in August: 15.9 days
The month with the most sunshine days is September (18.5 days).
The months with the least sunshine days are March and April (14 days).
Average UV index in August
Mount Morris, 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
Mount Morris, NY
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Mount Morris, NY
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).





