July weather forecast
Billerica, MA

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Weather in July

July, the same as June, is another warm summer month in Billerica, Massachusetts, with an average temperature varying between 82.2°F (27.9°C) and 63.1°F (17.3°C).

Temperature

The highest temperatures are recorded in July, with averages reaching a high of 82.2°F (27.9°C) and a low of 63.1°F (17.3°C).

Heat index

July's mean heat index is evaluated at a tropical 87.8°F (31°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In Billerica, the average relative humidity in July is 73%.

Rainfall

In July, the rain falls for 15.4 days. Throughout July, 2.05" (52mm) of precipitation is accumulated. In Billerica, during the entire year, the rain falls for 145.9 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 56min.
On the first day of the month, sunrise is at 5:11 am and sunset at 8:26 pm. On the last day of July, in Billerica, sunrise is at 5:36 am and sunset at 8:06 pm EDT.

Sunshine

The average sunshine in July in Billerica is 10.3h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Billerica. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Ward off overexposure. Defence against solar harm is crucial. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the warmest month in Billerica?

July is the warmest month in Billerica, with the temperature often reaching an average high of 82.2°F (27.9°C) and an average low of 63.1°F (17.3°C).

What are the temperatures in Billerica in July?

The average high-temperature and low-temperature during July are 82.2°F (27.9°C) and 63.1°F (17.3°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is evaluated at 87.8°F (31°C).

What is the average humidity in July in Billerica?

In July, the average relative humidity is 73%.

How much does it rain in Billerica in July?

In Billerica, in July, during 15.4 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When it does not snow in Billerica?

June through September are months without snowfall in Billerica.

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

The average day length in July in Billerica, Massachusetts, is 14h and 56min.

When are sunrise and sunset in July in Billerica?

On the first day of July in Billerica, Massachusetts, sunrise is at 5:11 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:06 pm EDT.

How many hours of sunshine does Billerica have in July?

The average sunshine duration in July is 10.3h.

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

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

What is the UV index reading in July in Billerica?

The average daily maximum UV index in July in Billerica is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Billerica, MA

Average temperature in July - Billerica, MA
  • Average high temperature in July: 82.2°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.5°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 (19.9°F).

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Average pressure in July
Billerica, MA

Average pressure in July - Billerica, MA
  • Average pressure in July: 29.94"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in July
Billerica, MA

Average wind speed in July - Billerica, MA
  • Average wind speed in July: 5.5mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in July
Billerica, MA

Average humidity in July - Billerica, MA
  • Average humidity in July: 73%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in July
Billerica, MA

Average rainfall in July - Billerica, MA
  • Average rainfall in July: 2.05"

The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in July
Billerica, MA

Average rainfall days in July - Billerica, MA
  • Average rainfall days in July: 15.4 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (6.9 days).

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Average snowfall in July
Billerica, MA

Average snowfall in July - Billerica, MA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Billerica, MA

Average snowfall days in July - Billerica, MA
  • Average snowfall days in July: 0 days

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

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Average daylight in July /
Average sunshine in July
Billerica, MA

Average daylight in July / Average sunshine in July - Billerica, MA
  • Average daylight in July: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in July
Billerica, MA

Average sunshine days in July - Billerica, MA
  • Average sunshine days in July: 14.2 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (13.6 days).

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Average UV index in July
Billerica, MA

Average UV index in July - Billerica, MA
  • 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).

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Average cloud cover in July
Billerica, MA

Average cloud cover in July - Billerica, MA
  • Average cloud cover in July: 34

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in July
Billerica, MA

Average visibility in July - Billerica, MA
  • Average visibility in July: 6mi

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

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Billerica, Massachusetts, USA

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