Climate and monthly weather forecast
Lancaster, MA

Share

Weather in January

January, like December, is another subzero cold winter month in Lancaster, Massachusetts, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 31.5°F (-0.3°C). In Lancaster, the lowest temperatures are generally noted in January, averaging a high of 31.5°F (-0.3°C) and a low of 19.8°F (-6.8°C). Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Lancaster, Massachusetts, with an average temperature fluctuating between 20.1°F (-6.6°C) and 34.7°F (1.5°C). Stepping into February, Lancaster records an average high-temperature of a cold 34.7°F (1.5°C), almost consistent with January. Weather in February »

Weather in March

The first month of the spring, March, is still a cold month in Lancaster, Massachusetts, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 27.9°F (-2.3°C). March brings a slight rise in Lancaster's average high-temperature, moving from 34.7°F (1.5°C) in February to a still wintry 42.4°F (5.8°C). Weather in March »

Weather in April

April in Lancaster, Massachusetts, is a moderate spring month, with an average temperature fluctuating between 38.1°F (3.4°C) and 55.6°F (13.1°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a cold 42.4°F (5.8°C) to a moderate 55.6°F (13.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Lancaster, Massachusetts, with an average temperature ranging between min 47.8°F (8.8°C) and max 67.5°F (19.7°C). May's arrival sees a rise in the average high-temperature, jumping from April's refreshing 55.6°F (13.1°C) to a comfortable 67.5°F (19.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Lancaster, Massachusetts, with an average temperature fluctuating between 75.2°F (24°C) and 55.4°F (13°C). The onset of June marks a slight increase in the average high-temperature, moving from a comfortable 67.5°F (19.7°C) in May to a warm 75.2°F (24°C). Weather in June »

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). 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). For most parts of July, the heat index is appraised at a hot 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Lancaster, Massachusetts, with an average temperature fluctuating between 80.1°F (26.7°C) and 60.4°F (15.8°C). The onset of August marks an average high-temperature of a still warm 80.1°F (26.7°C), hardly differing from July's 81.9°F (27.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Lancaster, Massachusetts, with an average temperature ranging between min 54°F (12.2°C) and max 72.5°F (22.5°C). September signifies a minor drop in average high-temperature, transitioning from a warm 80.1°F (26.7°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Lancaster, Massachusetts, with an average temperature varying between 45°F (7.2°C) and 59.7°F (15.4°C). With the onset of October, Lancaster experiences a modest temperature adjustment, with the average high-temperature receding from an agreeable 72.5°F (22.5°C) in September to a refreshing 59.7°F (15.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Lancaster, is also a frosty month, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 47.3°F (8.5°C). As November commences, the average high-temperature shows a reduction, transitioning from a refreshing 59.7°F (15.4°C) in October to a frosty 47.3°F (8.5°C). Weather in November »

Weather in December

December, the first month of the winter in Lancaster, is also an icy month, with an average temperature varying between 37.4°F (3°C) and 26.6°F (-3°C). The arrival of December indicates a decrease in the average high-temperature, moving from a frosty 47.3°F (8.5°C) in November to a cold 37.4°F (3°C). Weather in December »
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

Lancaster's coldest weather arrives in January, when temperatures average a high of 31.5°F (-0.3°C) and a low of 19.8°F (-6.8°C).

How much does it rain?

In Lancaster, during the entire year, the rain falls for 150.4 days and collects up to 28.86" (733mm) of precipitation.

When does it snow?

Months with snowfall are January through May, October through December.

How many days does it snow in Lancaster?

Throughout the year, there are 36.5 snowfall days, and 23.82" (605mm) of snow is accumulated.

What is the month with the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the most humid month?

With an average relative humidity of 81%, February is the most humid month.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 9.4 days and typically aggregates up to 6.1" (155mm) of snow.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 4.6h of sunshine.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Lancaster?

April is the least humid month, with an average relative humidity of 71%.

When it does not snow?

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

When are the longest days?

The month with the longest days is June, with an average of 15h and 12min of daylight.

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

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

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 month has the most sunshine?

The month with the most sunshine is August, with an average of 10.2h of sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.3 days and typically collects 1.57" (40mm) of precipitation.

What is the wettest month?

The month with the most rainfall in Lancaster is December, when the rain falls for 10.7 days and typically aggregates up to 2.91" (74mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

Average temperature
Lancaster, MA

Average temperature - Lancaster, MA

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).

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
Lancaster, MA

Average pressure - Lancaster, MA

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
Lancaster, MA

Average wind speed - Lancaster, MA

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
Lancaster, MA

Average humidity - Lancaster, MA

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

Average rainfall
Lancaster, MA

Average rainfall - Lancaster, MA

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
Lancaster, MA

Average rainfall days - Lancaster, MA

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
Lancaster, MA

Average snowfall - Lancaster, MA

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
Lancaster, MA

Average snowfall days - Lancaster, MA

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 / Average sunshine
Lancaster, MA

Average daylight / Average sunshine - Lancaster, MA

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).

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
Lancaster, MA

Average sunshine days - Lancaster, MA

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
Lancaster, MA

Average UV index - Lancaster, MA

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 visibility
Lancaster, MA

Average visibility - Lancaster, MA

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

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location