July weather forecast
Norfolk, MA

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Weather in July

July, the same as June, is another warm summer month in Norfolk, Massachusetts, with an average temperature ranging between min 63.3°F (17.4°C) and max 82°F (27.8°C).

Temperature

The temperatures reach their highest averages in July, with highs of 82°F (27.8°C) and lows of 63.3°F (17.4°C).

Heat index

For July, the heat index is estimated at a hot 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

The average relative humidity in July is 76%.

Rainfall

The month with the most rainfall is July, when the rain falls for 14 days and typically aggregates up to 1.18" (30mm) of precipitation.

Snowfall

In Norfolk, snow does not fall in June through September.

Daylight

In July, the average length of the day is 14h and 53min.
On the first day of the month, sunrise is at 5:13 am and sunset at 8:25 pm. On the last day of July, sunrise is at 5:38 am and sunset at 8:05 pm EDT.

Sunshine

The average sunshine in July is 10.1h.

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 risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months?

July, noted for its average high-temperature of 82°F (27.8°C) and an average low-temperature of 63.3°F (17.4°C), is considered the warmest month.

What are the temperatures in July?

In Norfolk, 82°F (27.8°C) is the average high-temperature and 63.3°F (17.4°C) is the average low-temperature during July. In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in July?

In Norfolk, the average relative humidity in July is 76%.

What is the rainiest month?

The month with the most rainfall is July, when the rain falls for 14 days and typically aggregates up to 1.18" (30mm) of precipitation.

How many days does it rain in July?

In Norfolk, in July, it is raining for 14 days, with typically 1.18" (30mm) 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?

In July, the average day length is 14h and 53min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:13 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:05 pm EDT.

How long on average sun shines in July?

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.

What is the UV index intensity in July?

The average daily maximum UV index in July in Norfolk is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Norfolk, MA

Average temperature in July - Norfolk, MA
  • Average high temperature in July: 82°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in July: 63.3°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in July
Norfolk, MA

Average pressure in July - Norfolk, MA
  • Average pressure in July: 29.95"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July
Norfolk, MA

Average wind speed in July - Norfolk, MA
  • Average wind speed in July: 6mph

The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in July
Norfolk, MA

Average humidity in July - Norfolk, MA
  • Average humidity in July: 76%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

Average rainfall in July
Norfolk, MA

Average rainfall in July - Norfolk, MA
  • Average rainfall in July: 1.18"

The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in July
Norfolk, MA

Average rainfall days in July - Norfolk, MA
  • Average rainfall days in July: 14 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in July
Norfolk, MA

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

The month with the highest snowfall is March (1.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Norfolk, MA

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

The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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 12min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in July
Norfolk, MA

Average sunshine days in July - Norfolk, MA
  • Average sunshine days in July: 14.8 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (14.6 days).

Average UV index in July
Norfolk, MA

Average UV index in July - Norfolk, 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).

Average cloud cover in July
Norfolk, MA

Average cloud cover in July - Norfolk, MA
  • Average cloud cover in July: 37

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in July
Norfolk, MA

Average visibility in July - Norfolk, MA
  • Average visibility in July: 5mi

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

Norfolk, Massachusetts, USA

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