July weather forecast and climate
South Windham, CT

Weather in July

July, like June, in South Windham, Connecticut, is a moderately hot summer month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 63°F (17.2°C).

Temperature

July is the warmest month, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 63°F (17.2°C).

Heat index

The average heat index is calculated to a hot 88°F (31.1°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, wind, pregnancy, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In July, the average relative humidity in South Windham is 78%.

Rainfall

In South Windham, it is raining for 17 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, in South Windham, Connecticut, there are 164.2 rainfall days, and 33.74" (857mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in South Windham.

Daylight

In South Windham, the average length of the day is 14.8h.

Sunshine

In South Windham, the average sunshine is 10.2h.

UV index

Months with the highest UV index in South Windham are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in July interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the warmest month in South Windham?

With an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 63°F (17.2°C), July is the warmest month in South Windham.

What is the temperature in July in South Windham?

The average high-temperature, in July, in South Windham, is 81.9°F (27.7°C), while the average low-temperature is 63°F (17.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines air temperature and relative humidity, is calculated to 88°F (31.1°C).

What is the average humidity in July in South Windham?

In July, the average relative humidity in South Windham, Connecticut, is 78%.

How many days does it rain in July in South Windham?

In South Windham, during July, the rain falls for 17 days and regularly aggregates up to 3.19" (81mm) of precipitation.

When it does not snow in South Windham?

In South Windham, Connecticut, snow does not fall in June through October.

What is the average length of the day in July in South Windham?

In July, the average length of the day is 14.8h.

How many hours of sunshine does South Windham have in July?

The average sunshine in July in South Windham is 10.2h.

What are the months with the highest UV index in South Windham?

June through August, with an average maximum UV index of 6, are months with the highest UV index in South Windham.

What is the UV index reading in July in South Windham?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV rays.

Average temperature in July
South Windham, CT

Average temperature in July - South Windham, CT
  • Average high temperature in July: 81.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in July: 63°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in July
South Windham, CT

Average pressure in July - South Windham, CT
  • Average pressure in July: 29.95"

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in July
South Windham, CT

Average wind speed in July - South Windham, CT
  • Average wind speed in July: 5.7mph

The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in July
South Windham, CT

Average humidity in July - South Windham, CT
  • Average humidity in July: 78%

Months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in July
South Windham, CT

Average rainfall in July - South Windham, CT
  • Average rainfall in July: 3.19"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in July
South Windham, CT

Average rainfall days in July - South Windham, CT
  • Average rainfall days in July: 17 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in July
South Windham, CT

Average snowfall in July - South Windham, CT
  • Average snowfall in July: 0"

The month with the highest snowfall is March (4.41").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in July
South Windham, CT

Average snowfall days in July - South Windham, CT
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (8.3 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
South Windham, CT

Average daylight in July / Average sunshine in July - South Windham, CT
  • Average daylight in July: 14.8h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in July: 10.2h

The month with the most sunshine is August (Average sunshine: 10.3h).
The month with the least sunshine is December (Average sunshine: 4.7h).

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Average sunshine days in July
South Windham, CT

Average sunshine days in July - South Windham, CT
  • Average sunshine days in July: 11.5 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in July
South Windham, CT

Average UV index in July - South Windham, CT
  • Average UV index in July: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in July
South Windham, CT

Average cloud cover in July - South Windham, CT
  • Average cloud cover in July: 36

Months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in July
South Windham, CT

Average visibility in July - South Windham, CT
  • Average visibility in July: 5mi

Months with the highest visibility are January, March, April, October, November and December (6mi).
Months with the lowest visibility are February, May, June, July, August and September (5mi).

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