July weather forecast
Lancaster, MA

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Weather in July

July, like June, in Lancaster, Massachusetts, is another warm summer month, with an average temperature fluctuating between 81.9°F (27.7°C) and 62.2°F (16.8°C).

Temperature

Lancaster's warmest weather arrives in July, when temperatures average a high of 81.9°F (27.7°C) and a low of 62.2°F (16.8°C).

Heat index

For most parts of July, the heat index is appraised at a hot 87.8°F (31°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

In Lancaster, the average relative humidity in July is 75%.

Rainfall

In Lancaster, in July, it is raining for 16 days, with typically 2.32" (59mm) of accumulated precipitation. In Lancaster, during the entire year, the rain falls for 150.4 days and collects up to 28.86" (733mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in July is 14h and 56min.
On the first day of July in Lancaster, sunrise is at 5:13 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:07 pm EDT.

Sunshine

The average sunshine in July is 10.1h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 6 transforms into these recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in Lancaster?

With its average high temperature of 81.9°F (27.7°C) and a low of 62.2°F (16.8°C), July is regarded as the warmest month.

What are July temperatures?

The high-temperature during July is 81.9°F (27.7°C) and the low-temperature is 62.2°F (16.8°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in July?

The average relative humidity in July is 75%.

How much does it rain in July?

In Lancaster, during July, the rain falls for 16 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Lancaster have in July?

In July, the average day length is 14h and 56min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:13 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:07 pm EDT.

How many hours of sunshine does Lancaster have in July?

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

What are the months with the highest UV index?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe 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
Lancaster, MA

Average temperature in July - Lancaster, MA
  • 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 (31.5°F).

  • Average low temperature in July: 62.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in July
Lancaster, MA

Average pressure in July - Lancaster, 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).

Average wind speed in July
Lancaster, MA

Average wind speed in July - Lancaster, MA
  • Average wind speed in July: 5.6mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in July
Lancaster, MA

Average humidity in July - Lancaster, MA
  • Average humidity in July: 75%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).

Average rainfall in July
Lancaster, MA

Average rainfall in July - Lancaster, MA
  • Average rainfall in July: 2.32"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in July
Lancaster, MA

Average rainfall days in July - Lancaster, MA
  • Average rainfall days in July: 16 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in July
Lancaster, MA

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

The month with the highest snowfall is February (6.1").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Lancaster, MA

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

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Lancaster, 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 6min).

  • 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 36min).

Average sunshine days in July
Lancaster, MA

Average sunshine days in July - Lancaster, MA
  • Average sunshine days in July: 12.8 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in July
Lancaster, MA

Average UV index in July - Lancaster, 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
Lancaster, MA

Average cloud cover in July - Lancaster, MA
  • Average cloud cover in July: 36

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in July
Lancaster, MA

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

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

Lancaster, Massachusetts, USA

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