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
The weather during August records an average high-temperature of a still warm 78.4°F (25.8°C), closely mirroring the preceding month. Rock Hill's temperature in August declines substantially from daytime highs, settling at a consistent average of 56.8°F (13.8°C) during the nights.Humidity
In Rock Hill, the average relative humidity in August is 79%.Rainfall
In August, the rain falls for 14.6 days. Throughout August, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 153.7 rainfall days, and 26.73" (679mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In August, the average length of the day in Rock Hill is 13h and 48min.On the first day of August in Rock Hill, sunrise is at 5:53 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:32 pm EDT.
Sunshine
In August, the average sunshine is 9.7h.UV index
The months with the highest UV index in Rock Hill are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 5 during August translates into the following directions:
Prioritize safety - Suggestions to prevent sun damage are offered. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Rock Hill have in August?
When are sunrise and sunset in August?
How many hours of sunshine does Rock Hill have in August?
What are the months with the highest UV index?
What is the UV index reading in August?
Average temperature in August
Rock Hill, NY
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in August: 56.8°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in August
Rock Hill, NY
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Rock Hill, NY
- Average wind speed in August: 4.8mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in August
Rock Hill, NY
- Average humidity in August: 79%
The months with the highest relative humidity are February and December (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in August
Rock Hill, NY
- Average rainfall in August: 2.32"
The wettest month (with the highest rainfall) is May (2.8").
The driest months (with the least rainfall) are January and February (1.65").
Average rainfall days in August
Rock Hill, NY
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in August
Rock Hill, NY
- Average snowfall in August: 0"
The month with the highest snowfall is December (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Rock Hill, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Rock Hill, NY
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 9h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in August
Rock Hill, NY
- Average sunshine days in August: 14 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in August
Rock Hill, 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, February, March, October, November and December (UV index 2).
Average cloud cover in August
Rock Hill, NY
- Average cloud cover in August: 39
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in August
Rock Hill, NY
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (5mi).
The months with the lowest visibility are May and September (4mi).
Rock Hill, New York, USA
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