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
Chatham, New York, sees the arrival of August with an average high-temperature of a still moderately hot 78.8°F (26°C), indicating a subtle variation from July. Chatham reports a substantial plunge from daytime highs during the nights of August, with an average low-temperature of 57.2°F (14°C).Humidity
In Chatham, the average relative humidity in August is 78%.Rainfall
In August, in Chatham, the rain falls for 13.4 days. Throughout August, 1.85" (47mm) of precipitation is accumulated. In Chatham, during the entire year, the rain falls for 135.1 days and collects up to 20.39" (518mm) of precipitation.Snowfall
In Chatham, snow does not fall in June through September.Daylight
In Chatham, New York, the average length of the day in August is 13h and 51min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:13 pm. On the last day of August, in Chatham, New York, sunrise is at 6:19 am and sunset at 7:29 pm EDT.
Sunshine
The months with the most sunshine are July and August, with an average of 10.3h of sunshine.UV index
The months with the highest UV index in Chatham are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, a daily UV index of 5 turns into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures in Chatham?
What is the average humidity in August in Chatham?
How many days does it rain in August in Chatham?
When it does not snow in Chatham?
How many hours of daylight does Chatham have in August?
What time are sunrise and sunset in August in Chatham?
What are the months with the most sunshine in Chatham?
How long on average sun shines in August in Chatham?
What are the months with the highest UV index in Chatham?
How high is the UV index in August in Chatham?
Average temperature in August
Chatham, NY
- Average high temperature in August: 78.8°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in August: 57.2°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in August
Chatham, 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 (29.92"Hg).
Average wind speed in August
Chatham, NY
- Average wind speed in August: 5mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in August
Chatham, NY
- Average humidity in August: 78%
The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in August
Chatham, NY
- Average rainfall in August: 1.85"
The wettest month (with the highest rainfall) is July (2.4").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in August
Chatham, NY
- Average rainfall days in August: 13.4 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in August
Chatham, NY
- Average snowfall in August: 0"
The month with the highest snowfall is March (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Chatham, NY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Chatham, NY
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in August
Chatham, NY
- Average sunshine days in August: 14.7 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is June (12.5 days).
Average UV index in August
Chatham, 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, November and December (UV index 2).
Average cloud cover in August
Chatham, NY
- Average cloud cover in August: 35
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in August
Chatham, NY
- Average visibility in August: 5mi
The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).
Chatham, New York, USA
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