July weather forecast
Watertown, CT

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Weather in July

July, like June, in Watertown, Connecticut, is another warm summer month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 82.4°F (28°C).

Temperature

July, characterized by an average high temperature of 82.4°F (28°C) and a low temperature of 63.1°F (17.3°C), is generally the warmest month.

Heat index

July's mean heat index is appraised at a tropical 89.6°F (32°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The average relative humidity in July is 76%.

Rainfall

In Watertown, in July, it is raining for 17.8 days, with typically 3.19" (81mm) of accumulated precipitation. In Watertown, during the entire year, the rain falls for 158.5 days and collects up to 34.57" (878mm) of precipitation.

Snowfall

In Watertown, Connecticut, snow does not fall in June through September.

Daylight

The average length of the day in July is 14h and 50min.
On the first day of July, sunrise is at 5:22 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:10 pm EDT.

Sunshine

The months with the most sunshine are July and August, with an average of 10.1h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 6 during July translates into the following directions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What is the hottest time of year?

In Watertown, July is the warmest month, with temperatures averaging a high of 82.4°F (28°C) and a low of 63.1°F (17.3°C).

How hot is it in July?

July temperatures vary between a high-temperature of 82.4°F (28°C) and a low-temperature of 63.1°F (17.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 89.6°F (32°C).

What is the average humidity in July?

In July, the average relative humidity is 76%.

How many days does it rain in July?

In Watertown, in July, it is raining for 17.8 days, with typically 3.19" (81mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in July?

The average day length in July is 14h and 50min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:22 am and sunset at 8:30 pm. On the last day of the month, in Watertown, sunrise is at 5:46 am and sunset at 8:10 pm EDT.

What is the month with the most sunshine?

July and August, with an average of 10.1h of sunshine, are months with the most sunshine.

How long on average sun shines in July?

In Watertown, the average sunshine duration in July is 10.1h.

What is the month with the highest UV index?

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

How high is the UV index in July?

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

Average temperature in July - Watertown, CT
  • Average high temperature in July: 82.4°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in July: 63.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in July
Watertown, CT

Average pressure in July - Watertown, CT
  • 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 (29.93"Hg).

Average wind speed in July
Watertown, CT

Average wind speed in July - Watertown, CT
  • Average wind speed in July: 5.2mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in July
Watertown, CT

Average humidity in July - Watertown, CT
  • Average humidity in July: 76%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).

Average rainfall in July
Watertown, CT

Average rainfall in July - Watertown, CT
  • Average rainfall in July: 3.19"

The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in July
Watertown, CT

Average rainfall days in July - Watertown, CT
  • Average rainfall days in July: 17.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in July
Watertown, CT

Average snowfall in July - Watertown, CT
  • Average snowfall in July: 0"

The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Watertown, CT

Average snowfall days in July - Watertown, CT
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Watertown, CT

Average daylight in July / Average sunshine in July - Watertown, CT
  • Average daylight in July: 14h 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 July: 10h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in July
Watertown, CT

Average sunshine days in July - Watertown, CT
  • Average sunshine days in July: 11.2 days

The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in July
Watertown, CT

Average UV index in July - Watertown, CT
  • Average UV index in July: 6

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

Average cloud cover in July
Watertown, CT

Average cloud cover in July - Watertown, CT
  • Average cloud cover in July: 37

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in July
Watertown, CT

Average visibility in July - Watertown, CT
  • Average visibility in July: 5mi

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

Watertown, Connecticut, USA

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