July weather forecastOld Chatham, NY
July
Weather in July
July, like June, in Old Chatham, New York, is a moderately hot summer month, with an average temperature ranging between max 80.8°F (27.1°C) and min 59°F (15°C).Temperature
July, with an average high of 80.8°F (27.1°C) and a low of 59°F (15°C), signifies the warmest month of the year.Heat index
The average heat index in July is calculated to be a hot 86°F (30°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in July is 77%.Rainfall
The month with the most rainfall is July, when the rain falls for 14.9 days and typically aggregates up to 2.4" (61mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in July is 14h and 56min.On the first day of the month, sunrise is at 5:21 am and sunset at 8:35 pm. On the last day of July, sunrise is at 5:46 am and sunset at 8:14 pm EDT.
Sunshine
July and August, with an average of 10.3h of sunshine, are months with the most sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Old Chatham, New York. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 5 in July translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Old Chatham, NY
- Average high temperature in July: 80.8°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 July: 59°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 July
Old Chatham, NY
- Average pressure in July: 29.95"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 July
Old Chatham, NY
- Average wind speed in July: 5.2mph
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 July
Old Chatham, NY
- Average humidity in July: 77%
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 July
Old Chatham, NY
- Average rainfall in July: 2.4"
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 July
Old Chatham, NY
- Average rainfall days in July: 14.9 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 July
Old Chatham, NY
- Average snowfall in July: 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 July
Old Chatham, NY
- Average snowfall days in July: 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 July /
Average sunshine in July
Old Chatham, NY
- Average daylight in July: 14h and 54min
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 July: 10h and 18min
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 July
Old Chatham, NY
- Average sunshine days in July: 14.3 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 July
Old Chatham, NY
- Average UV index in July: 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 July
Old Chatham, NY
- Average cloud cover in July: 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 July
Old Chatham, NY
- Average visibility in July: 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).
