Climate and monthly weather forecast
Errol, NH

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The climate of Errol

Errol, New Hampshire falls under the Dfb category according to the Köppen climate classification, denoting a predominantly Humid Continental climate with no dry season and a warm summer. Nestled in the northern reaches of the United States, the town experiences an intriguing blend of seasonally dictated weather conditions.

Over the course of the year, temperatures in Errol oscillate expansively. Mercury levels reach their zenith in July, where averages peak at a balmy 74.1°F (23.4°C) while during the colder months, they plunge to a chilly 8.1°F (-13.3°C) in January. This temperature variation underscores Errol's experience of all four distinct seasons: spring, summer, autumn, and winter.

Rainfall in Errol remains somewhat consistent throughout the year, ranging from a low of 2.17" (55mm) in February to a high of 3.15" (80mm) in October with an average of 15.4 rainy days. Moreover, the relative humidity also exhibits minor fluctuations, hovering around the 79% to 90% range across the twelve months.

Snow is a prominent feature of Errol's weather scene, more heavily in the winter months, gaining momentum from November and hitting a high of 12.24" (311mm) in January. Its prevalence can be felt till April, after which the snow gives way to sunny skies.

The best time to visit Errol

The most favorable time to visit Errol would be between the months of May to September. The overall climate in these months is more mellow with temperatures ranging from pleasant 60.4°F (15.8°C) to a mild 74.1°F (23.4°C). Combined with the minimal rainfall and an abundant number of sunshine days, these meteorological conditions provide an ideal setting for outdoor pursuits and sightseeing.

The worst time to visit Errol

Travel plans to Errol may warrant reconsideration between December to February. These are the coldest months, with temperatures often plummeting to around 8.1°F (-13.3°C) in January and a frigid 16°F (-8.9°C) in December. In addition, frequent snowfall during these winter months could pose a challenge to mobility.

Spring weather in Errol

Spring unfolds in Errol from March to May. Temperatures during this season rise steadily from a comfortable 31.5°F (-0.3°C) to a warm 60.4°F (15.8°C). Rainfall throughout this season is relatively high, peaking at 2.87" (73mm) in April, paired with 17.8 rainy days, making it the wettest month of this season.

Summer weather in Errol

Summer in Errol spans from June to August. The atmosphere during this period is marked by increasingly warm temperatures, reaching up to 74.1°F (23.4°C) in July. Rainfall hovers around 2.91" (74mm) in June, gradually diminishing to 2.2" (56mm) by August.

Autumn weather in Errol

Autumn in Errol commences in September and concludes in November. During this time, temperatures dip gradually from a rather warm 65.1°F (18.4°C) to a more moderate 37.4°F (3°C). Rainfall escalates during this season, touching its annual high of 3.15" (80mm) in October.

Winter weather in Errol

Winter engulfs Errol in the months of December through February. These chilly months see temperatures dipping to as low as 8.1°F (-13.3°C) in January. Snowfall marks its presence emphatically during this season, reaching its peak at 12.24" (311mm) in January. Despite the cold and snow, this period affords breathtaking winter landscapes and invites winter sports enthusiasts to the town.

Weather in January

Brace for the coldest phase of the year in Errol, New Hampshire. January in Errol is predominantly snowy, with lowest average temperatures reaching a frigid 8.1°F (-13.3°C), and soaring to a high of 21.2°F (-6°C) only. It is not recommended to venture outdoors without warm clothing Given the lower UV index, residents and visitors can expect little direct sunlight. Weather in January »

Weather in February

With February, the chill start to lift, albeit at a leisurely pace. Witness a slight increase in the average daily temperature, though snowfall continues to be the prime characteristic of Errol. The lengthening daylight hours mark the slow advance of spring. Weather in February »

Weather in March

The change of season in Errol is marked by a definite rise in temperature. Days in March see an average high of 31.5°F (-0.3°C) and a low of 17.8°F (-7.9°C). Notably, snowfall decreases during this month, hinting towards the approaching spring. Weather in March »

Weather in April

April in Errol, New Hampshire, is a period of notable transition as spring begins to show its influence. In April, snowfall usually declines to a measly 0.67" (17mm), a significant drop from the previous month's snowfall. The environment shifts gradually towards more sunshine and daylight. Weather in April »

Weather in May

Entering May, the residents of Errol enjoys the full bloom of spring. The last traces of winter snow vanish, making way for clearer skies and a brightly lit city. Coupled with increased sunshine hours, the landscape is stunningly picturesque. Weather in May »

Weather in June

June in Errol brings the warmth of summer, with a slight chance of cooling rain showers. With a peak recorded temperature of 67.6°F (19.8°C), it is the start of the warmer and longer days. One will observe longer durations of sunshine coupled with a high UV index. Weather in June »

Weather in July

July is the hottest month for Errol, ensuring an ideally warm summer. The average high temperature in July extends to a toasty 74.1°F (23.4°C). The period also witnesses moderate breeze, making the summer more comfortable. Amidst the overall dry spell, rainfall does occur, proving a respite from the heat. Weather in July »

Weather in August

As August rolls in, Errol keeps its hot summer vibe, although there is a slight dip in the warmth. The daylight hours begin to decrease, reminding one of the approaching end of summer. Although the heat reduces subtly, warm winds keep the air comfortable. Weather in August »

Weather in September

The onset of autumn in September brings noticeable changes to Errol’s weather. The average high temperature lowers to 65.1°F (18.4°C), giving a clear sign of the changing season. With zero snowfall still, the city retains its inviting demeanor. Weather in September »

Weather in October

Despite the drop in temperatures, October in Errol remains free from snowfall. However, the quickest drop in temperatures manifests during October. The length of the day decreases noticeably, and daylight-saving changes come into effect. Weather in October »

Weather in November

November in Errol, New Hampshire ushers in the early phase of winter. A substantial decrease in temperatures marks this, with an average high of 37.4°F (3°C) and a low of 25.9°F (-3.4°C). The month also witnesses a sharp rise in snowfall, reaching an average of 7.95" (202mm). Weather in November »

Weather in December

Wrapping up the year, December in Errol arrives with its signature winter chill. The city experiences its maximum snowfall of 10.63" (270mm) in this month. Enjoy the white blanket of snow adorning the cityscape. Fall in daylight and sunshine hours contributes to the general cold spell. Weather in December »
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Frequently asked questions

What is the coldest time of year in Errol?

January tends to be the coldest month in Errol, with temperatures averaging a daily high of 21.2°F (-6°C) and a low of 8.1°F (-13.3°C).

What are the most humid months in Errol?

January and February, with an average relative humidity of 90%, are most humid months.

How much does it rain in Errol?

Throughout the year, there are 163.8 rainfall days, and 29.69" (754mm) of precipitation is accumulated.

When does it snow in Errol?

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

How much does it snow in Errol?

In Errol, New Hampshire, during the entire year, snow falls for 115.1 days and aggregates up to 67.48" (1714mm) of snow.

What is the driest month in Errol?

February is the month with the least rainfall in Errol. Rain falls for 7 days and accumulates 2.17" (55mm) of precipitation.

When does it snow the most in Errol?

February is the month with the most snowfall in Errol, New Hampshire. Snow falls for 22.4 days and accumulates 13.66" (347mm) of snow.

What is the month with the least sunshine in Errol?

February has the least sunshine of the year in Errol, with an average of 2.9h of sunshine.

What is the month with the lowest UV index in Errol?

February and December, with an average maximum UV index of 1, are months with the lowest UV index in Errol, New Hampshire.

When is Daylight Saving Time (DST) in Errol?

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 Errol?

May is the least humid month in Errol, with an average relative humidity of 77%.

When it does not snow in Errol?

June through September are months without snowfall.

When are the longest days in Errol?

The month with the longest days is June, with an average of 15h and 30min of daylight.

When is the highest UV index in Errol?

June and July, with an average maximum UV index of 5, are months with the highest UV index in Errol, New Hampshire.

What is the warmest month in Errol?

Errol, New Hampshire, records the warmest temperatures in July, averaging a high of 74.1°F (23.4°C) and a low of 53.4°F (11.9°C).

What is the month with the most sunshine in Errol?

The months with the most sunshine are July and August, with an average of 9.3h of sunshine.

What is the wettest month in Errol?

October is the month with the most rainfall. Rain falls for 15.4 days and accumulates 3.15" (80mm) of precipitation.

What is the month with the shortest days in Errol?

The month with the shortest days is December, with an average of 8h and 54min of daylight.

Average pressure
Errol, NH

Average pressure - Errol, NH

The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Errol, NH

Average wind speed - Errol, NH

The windiest months (with the highest average wind speed) are February, March and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity
Errol, NH

Average humidity - Errol, NH

The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (77%).

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Average rainfall
Errol, NH

Average rainfall - Errol, NH

The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is February (2.17").

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Average rainfall days
Errol, NH

Average rainfall days - Errol, NH

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (7 days).

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Average snowfall
Errol, NH

Average snowfall - Errol, NH

The month with the highest snowfall is February (13.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Errol, NH

Average snowfall days - Errol, NH

The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Errol, NH

Average daylight / Average sunshine - Errol, NH

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).

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Average sunshine days
Errol, NH

Average sunshine days - Errol, NH

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (4.9 days).

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Average visibility
Errol, NH

Average visibility - Errol, NH

The months with the highest visibility are May and June (5mi).
The months with the lowest visibility are January, February, March, April, July, August, September, October, November and December (4mi).

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Errol, New Hampshire, USA

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