July weather forecast
Chatham, NH

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Weather in July

July is a warm summer month in Chatham, New Hampshire, with an average temperature fluctuating between 76.8°F (24.9°C) and 55.8°F (13.2°C).

Temperature

The average temperatures reach their apex in July, averaging 76.8°F (24.9°C) at the high end and 55.8°F (13.2°C) at the low end.

Humidity

In Chatham, the average relative humidity in July is 79%.

Rainfall

In Chatham, during July, the rain falls for 15.4 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, in Chatham, there are 158 rainfall days, and 18.58" (472mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Chatham, New Hampshire.

Daylight

The average length of the day in July is 15h and 7min.
On the first day of the month, sunrise is at 5:04 am and sunset at 8:31 pm. On the last day of July, sunrise is at 5:31 am and sunset at 8:09 pm EDT.

Sunshine

The average sunshine in July in Chatham, New Hampshire, is 9.9h.

UV index

The months with the highest UV index in Chatham are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During July, 5 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Guidance to elude sunburn is provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Chatham?

Chatham, New Hampshire, experiences its highest temperatures in July, with an average peak of 76.8°F (24.9°C) and a low of 55.8°F (13.2°C).

What is the temperature in July in Chatham?

July temperatures in Chatham, New Hampshire, vary between a high-temperature of 76.8°F (24.9°C) and a low-temperature of 55.8°F (13.2°C).

What is the average humidity in July in Chatham?

In Chatham, New Hampshire, the average relative humidity in July is 79%.

How many days does it rain in July in Chatham?

In July, the rain falls for 15.4 days. Throughout July, 1.5" (38mm) of precipitation is accumulated.

When it does not snow in Chatham?

In Chatham, New Hampshire, snow does not fall in June through September.

What is the average length of the day in July in Chatham?

The average day length in July in Chatham is 15h and 7min.

What time are sunrise and sunset in July in Chatham?

In July, on the first day of the month, sunrise is at 5:04 am and sunset at 8:31 pm. On the last day of the month, in Chatham, New Hampshire, sunrise is at 5:31 am and sunset at 8:09 pm EDT.

How many hours of sunshine does Chatham have in July?

In July, the average sunshine duration in Chatham is 9.9h.

What is the month with the highest UV index in Chatham?

The months with the highest UV index are June through August, with an average maximum UV index of 5.

What is the UV index intensity in July in Chatham?

In July, the average daily maximum UV index in Chatham, New Hampshire, is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Chatham, NH

Average temperature in July - Chatham, NH
  • Average high temperature in July: 76.8°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (24.4°F).

  • Average low temperature in July: 55.8°F

The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).

Average pressure in July
Chatham, NH

Average pressure in July - Chatham, NH
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Chatham, NH

Average wind speed in July - Chatham, NH
  • Average wind speed in July: 4.5mph

The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in July
Chatham, NH

Average humidity in July - Chatham, NH
  • Average humidity in July: 79%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and November (77%).

Average rainfall in July
Chatham, NH

Average rainfall in July - Chatham, NH
  • Average rainfall in July: 1.5"

The wettest months (with the highest rainfall) are April and October (2.17").
The driest month (with the least rainfall) is September (0.94").

Average rainfall days in July
Chatham, NH

Average rainfall days in July - Chatham, NH
  • Average rainfall days in July: 15.4 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (9.8 days).

Average snowfall in July
Chatham, NH

Average snowfall in July - Chatham, NH
  • Average snowfall in July: 0"

The month with the highest snowfall is February (6.73").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Chatham, NH

Average snowfall days in July - Chatham, NH
  • Average snowfall days in July: 0 days

The months with the highest number of snowfall days are January and February (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Chatham, NH

Average daylight in July / Average sunshine in July - Chatham, NH
  • Average daylight in July: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in July: 9h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in July
Chatham, NH

Average sunshine days in July - Chatham, NH
  • Average sunshine days in July: 12 days

The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (10.1 days).

Average UV index in July
Chatham, NH

Average UV index in July - Chatham, NH
  • Average UV index in July: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in July
Chatham, NH

Average cloud cover in July - Chatham, NH
  • Average cloud cover in July: 39

The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are August and September (Cloud cover 37).

Average visibility in July
Chatham, NH

Average visibility in July - Chatham, NH
  • Average visibility in July: 5mi

The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).

Chatham, New Hampshire, USA

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