Climate and monthly weather forecast
Leominster, MA

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The climate of Leominster

Situated in Massachusetts, USA, Leominster falls under the Dfb classification in the Köppen climate system, establishing it as a region with a humid continental climate, no dry season, and warm summer. Weather parameters throughout the year depict considerable variations as each month brings about transformative changes in weather conditions.

In an annual perspective, temperature in Leominster ranges from a low of 18°F (-7.8°C) in January to a high of 81.3°F (27.4°C) in July. Humidity levels remain relatively constant throughout the year, with monthly averages fluctuating between 72% in April and 81% in February. Precipitation patterns feature monthly rainfall levels from 1.73" (44mm) in September to 2.91" (74mm) in December. Rainfall is a common occurrence year-round, with the least number of rainy days in February and the most in May and July.

Leominster's weather characteristic has a year-round snowfall, the heaviest from 4.57" (116mm) in January to 6.54" (166mm) in February, and least, 0.16" (4mm) in May. Snowy days range from nine to ten days in January and February to no snowfall from June to September. Sunshine hours reveal variations throughout the year, extending from 4.5 hours in February to a maximum of 10.2 hours in August. Levels of UV radiations are relatively low, peaking at 6 during summer.

The best time to visit Leominster

Visitors who enjoy warm weather with moderate rainfall would find July and August to be the most suitable months to visit Leominster. During these months, temperatures peak at around 81.3°F (27.4°C) and 79.3°F (26.3°C) respectively, offering ample warmth. Furthermore, daylight extends to 14.9 hours and 13.9 hours, allowing plenty of time to explore the outdoors. However, it is to be noted that although September sees a dip in temperature to 71.6°F (22°C), it hosts the lowest rainfall of 1.73" (44mm), making it another favourable month to visit.

The worst time to visit Leominster

The harsh weather conditions in January make it a less desirable time for a visit, as the average temperatures plummet to a chilly 18°F (-7.8°C). This period also experiences the highest snowfall of 4.57" (116mm) alongside 9.3 days of snowfall, further intensifying the cold. Within the same line, February carries similar weather patterns with a slight increase in temperature to 19.4°F (-7°C).

Spring weather in Leominster

Spring in Leominster, from March to May, ushers in a moderate climate with temperatures rising from a moderate 41.5°F (5.3°C) in March to a warm 66.9°F (19.4°C) in May. The amount of rainfall during this period oscillates between 2.52" (64mm) to 2.24" (57mm). While March sees a decline in snowfall days to 1.8, by May, the town experiences virtually no snowfall.

Summer weather in Leominster

With June marking the onset of summer, temperatures in Leominster increase to 74.8°F (23.8°C) and further to 79.3°F (26.3°C) in August. The summer months, from June to August, are characterized by long daylight hours, ranging from 15.3 hours in June to 13.9 hours in August. Rainfall during this time varies from 2.4" (61mm) to 2.48" (63mm).

Autumn weather in Leominster

Autumn in Leominster begins in September with slightly cooler temperatures, which gradually decrease around the 70°F (21.1°C) mark to 58.5°F (14.7°C) by November. Rainfall rises from 1.73" (44mm) in September, the minimum all year, to 2.83" (72mm) in November. From a virtually non-existent snowfall in September, the town sees a mild increment to 0.35" (9mm) in November.

Winter weather in Leominster

Winter in Leominster spans from December to February, with temperatures falling to a low 25.5°F (-3.6°C) from 36.5°F (2.5°C) in December. The coldest month is January, with the temperature dipping to the lowest level all year at 18°F (-7.8°C). During this time, the town experiences the most snowfall, ranging from 4.29" (109mm) to 6.54" (166mm) per month. The shortest daylight hours are also in the winter, with December having just 9.1 hours.

Weather in January

January ushers in a chilly and snowy start to the year in Leominster, Massachusetts. The persistent frigid conditions create a serene winter landscape. Compared to the following month, this month brings slightly lower temperatures, more snowfall days and shorter daylight hours. Weather in January »

Weather in February

The cold holds steadfast in February, yet the city of Leominster witnesses a slight rise in mercury. February, with an increase in sunshine hours from the preceding month, offers a brighter winter scene. However, with the arrival of spring in the next month, anticipation of warmer weather subtly builds up. Weather in February »

Weather in March

March breaks away from the harsh winter months, inviting milder temperatures and longer daylight hours. It is a month of transition in Leominster, transforming the environment slowly but surely towards spring. The snow starts to retreat, making way for rain that prepares the ground for spring blossoms. Weather in March »

Weather in April

April brings with it the undeniable touch of spring to Leominster, with Nature adding color after months of monochrome. It’s a leap from the preceding month, with more sun, fewer snowfall days, and considerable temperature increase. Weather in April »

Weather in May

May in Leominster becomes a celebration of spring, with increased sunlight and warming temperatures. The city gleams under longer sunlight hours and fewer cloudy days compared to the previous month. Humidity starts rising, making the air heavy with rich, earthy aromas. Weather in May »

Weather in June

As the door to summer opens in June, Leominster bathes in abundant sunshine. It's a stark contrast to the rainy April and May, with fewer rainfall days and more sunshine hours. Outdoor activities are bountiful during these warm, sunny days. Weather in June »

Weather in July

In Leominster, July is the zenith of summer, displaying the warmest temperatures of the year. The previous month's warm weather paves the way for the peak summer heat in July. As the thermometer climbs, there is a noticeable rise in humidity and an increase in rain. Weather in July »

Weather in August

August sees Leominster under the lingering touch of summer. It's as warm as July, though there is a subtle mellowing of temperatures towards the end of the month. Anticipation of the fall becomes apparent as daylight hours begin to reduce. Weather in August »

Weather in September

September marks the arrival of autumn in Leominster. The month witnesses falling temperatures, shorter daylight hours, and an increase in cloudy days compared to August. However, September holds its appeal with mild weather and changing foliage. Weather in September »

Weather in October

October in Leominster brings crisp air and spectacular fall foliage. The color palette of the city changes dramatically from green to a mix of fiery reds, warm oranges, and bright yellows. The temperature starts dipping further, hinting at the approaching winter. Weather in October »

Weather in November

November signals the end of autumn and the advent of winter. Leominster becomes progressively chillier, preparing to welcome the winter once again. The bright autumnal colors fade, replaced by barren trees standing against gray skies. Weather in November »

Weather in December

December consolidates the arrival of winter in Leominster. Compared to November, December reveals a steeper drop in temperature and an increase in snowfall days. Snow starts to settle, blanketing the city in a white sheet. Witnessing significant snowfall of 4.29" (109mm), December illustrates a picturesque winter landscape. Weather in December »
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Frequently asked questions

What time of the year is the coldest in Leominster?

Leominster's January weather, marked by an average high temperature of 30.9°F (-0.6°C) and an average low temperature of 18°F (-7.8°C), is the coldest in the year.

How much does it rain in Leominster?

Throughout the year, in Leominster, there are 148.5 rainfall days, and 29.29" (744mm) of precipitation is accumulated.

When does it snow in Leominster?

January through May, October through December are months with snowfall in Leominster.

How much does it snow in Leominster?

In Leominster, during the entire year, snow falls for 38.8 days and aggregates up to 24.61" (625mm) of snow.

When is the lowest UV index in Leominster?

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

What is the most humid month in Leominster?

The most humid month in Leominster, Massachusetts, is February, with an average relative humidity of 81%.

What is the snowiest month in Leominster?

The month with the most snowfall in Leominster is February, when snow falls for 9.5 days and typically aggregates up to 6.54" (166mm) of snow.

What is the month with the least sunshine in Leominster?

The month with the least sunshine in Leominster, Massachusetts, is February, with an average of 4.5h of sunshine.

When is Daylight Saving Time (DST) in Leominster?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Leominster, 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 Leominster?

The least humid month is April, with an average relative humidity of 72%.

When it does not snow in Leominster?

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

When are the longest days in Leominster?

The month with the longest days is June, with an average of 15h and 18min of daylight.

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

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

What month is the hottest in Leominster?

July tends to be the warmest month in Leominster, with temperatures averaging a daily high of 81.3°F (27.4°C) and a low of 61.3°F (16.3°C).

What month has the most sunshine in Leominster?

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

What is the driest month in Leominster?

The month with the least rainfall in Leominster, Massachusetts, is September, when the rain falls for 12.7 days and typically collects 1.73" (44mm) of precipitation.

What is the rainiest month in Leominster?

December is the month with the most rainfall in Leominster. Rain falls for 10.2 days and accumulates 2.91" (74mm) of precipitation.

What is the month with the shortest days in Leominster?

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

Average temperature
Leominster, MA

Average temperature - Leominster, MA

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (30.9°F).

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure
Leominster, MA

Average pressure - Leominster, 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).

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Average wind speed
Leominster, MA

Average wind speed - Leominster, 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).

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Average rainfall
Leominster, MA

Average rainfall - Leominster, MA

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days
Leominster, MA

Average rainfall days - Leominster, MA

The month with the highest number of rainy days is May (15.5 days).
The months with the least rainy days are January and February (7.3 days).

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Average snowfall
Leominster, MA

Average snowfall - Leominster, MA

The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Leominster, MA

Average snowfall days - Leominster, MA

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Leominster, MA

Average daylight / Average sunshine - Leominster, MA

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).

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 30min).

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Average sunshine days
Leominster, MA

Average sunshine days - Leominster, MA

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is April (13.2 days).

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Average UV index
Leominster, MA

Average UV index - Leominster, 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).

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Average visibility
Leominster, MA

Average visibility - Leominster, MA

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

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Leominster, Massachusetts, USA

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