Climate and monthly weather forecast
Havre de Grace, MD

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The climate of Havre de Grace

Nestled in the state of Maryland, the city of Havre de Grace experiences a Humid subtropical climate, with no dry season. This climate type, known as Cfa in the Köppen classification, features consistent humidity and considerable rainfall throughout the year. Annual temperature highs range from 37.6°F (3.1°C) (in January) to 84.4°F (29.1°C) (in July), while the lowest temperatures fluctuate from 26.1°F (-3.3°C) to 65.4°F (18.6°C) in the corresponding months. The relative humidity is often high, averaging between 74% and 80%.

Rainfall is evenly spread over the year, with precipitation levels from 1.85" (47mm) in January, gradually increasing to a peak of 3.82" (97mm) by August. The frequency of rain fluctuates between 8.3 and 17 days per month, with the spring months experiencing a higher number of wet days. The winter months bring some snowfall between 0.2" (5mm) and 2.17" (55mm), predominantly from December to March, and snow can fall for up to 4.6 days a month in these times.

Daylight hours naturally vary from 9.8 hours in the shortest days of December to 14.9 hours during the long summer days in June. Correspondingly, sunshine duration fluctuates greatly throughout the year, with an average duration of around 5.1 hours in the winter months (increasing to as much as 10.8 hours in sunny July). Despite the humid subtropical climate, Havre de Grace achieves a comfortable UV index of between 2 and 6 throughout the year.

The best time to visit Havre de Grace

Keeping in mind the climate conditions, the ideal time to visit Havre de Grace, Maryland, comes between the months of May and October. This period offers pleasant weather conditions with the highest average temperatures, ranging from 61.7°F (16.5°C) to 84.4°F (29.1°C) and minimum rainfall. The days are longest with between 14.4 and 14.6 daylight hours, allowing ample time for outdoor activities. Sunshine duration is also at its peak during these months, with between 8.7 and 10.8 hours daily.

The worst time to visit Havre de Grace

Winter, from December to February, may be considered as the least suitable time for a visit to Havre de Grace. During these months, average high temperatures are considerably lower, ranging from 37.6°F (3.1°C) to 41.5°F (5.3°C). Furthermore, the city experiences the shortest days of the year, with just 9.4 to 10.7 daylight hours. Despite these conditions, winter brings a different kind of beauty with snowfall that may appeal to those seeking a wintry retreat.

Spring weather in Havre de Grace

Spring months of March, April, and May in Havre de Grace are characterized by warming temperatures. Highs increase steadily from 50°F (10°C) in March to 71.6°F (22°C) by May. It is also the season with a noticeable increase in rainfall, from 2.24" (57mm) in March to 2.8" (71mm) in May. The number of sunshine hours begins to rise, from 6.6 hours in March to an appreciable 8.7 hours by the end of spring.

Summer weather in Havre de Grace

Summer arrives in Havre de Grace with temperatures soaring to their annual highs. Peak summer temperatures average around 79.3°F (26.3°C) in June and reach up to 84.4°F (29.1°C) in July. Despite the high temperatures, the abundant sunshine -with up to 10.8 hours per day- and the longest days of the year make summer an inviting season.

Autumn weather in Havre de Grace

Autumn sees temperatures dip from 76.5°F (24.7°C) in September to slightly cooler 52.9°F (11.6°C) by November. Rainfall is consistent during these months, with a slight peak of 3.82" (97mm) in August. As the season progresses, daylight hours reduce from 12.4 hours in September to 10 hours by November, giving way to the cooler winter months.

Winter weather in Havre de Grace

Winter in Havre de Grace is characterized by the lowest temperatures of the year. Average highs drop to 37.6°F (3.1°C) in January, while the lows can plunge to 26.1°F (-3.3°C). Snowfall is a regular feature, reaching a maximum of 2.17" (55mm) in January. The period also witnesses the shortest days of the year, with daylight hours reducing to as low as 9.4 hours. Despite the cooler conditions, winter carries a unique charm with the city blanketed in snow.

Weather in January

There's a definite winter chill in Havre de Grace, Maryland, the weather clearly indicating that it is the first month of the year. With temperatures barely rising above freezing and regular spells of frost, the month is marked by a definite chill. Weather in January »

Weather in February

As one moves into February, slight, but not significant enough changes occur in the weather pattern. The persistent cold continues to be a defining feature, with sporadic snowfalls lending a wintry ambiance to Havre de Grace. February sees its humidity peaking at 77%, creating damp and chilly conditions. Weather in February »

Weather in March

March brings about notable changes, signaling the transitioning seasons. A greater amount of rainfall compared to the preceding months transforms the landscape. Rainfall reaches a higher average of 2.24" (57mm), coupled with a significant tapering off of snowfall, just 2.13" (54mm) compared to February's 1.65" (42mm). Weather in March »

Weather in April

April in Havre de Grace unveils a clear shift away from the somber winter landscape and towards the freshness of spring. The air crisp with higher temperature oscillations, the town gradually awakens from its wintery chill. April stands out as the month of transition, with sea temperatures seeing the start of a pronounced hike up to 48.6°F (9.2°C) from March's 43.3°F (6.3°C). Weather in April »

Weather in May

May serves as the threshold between spring and summer, retaining some of the cooling springtime showers, while ushering in the warmth of summer. With an evident increase in temperature, this month experiences the full bloom of the town's flora, the green landscape a picturesque homage to spring. Weather in May »

Weather in June

With the arrival of June, summer firmly takes hold of Havre de Grace's weather. With temperatures continuing to climb and cloudy skies becoming less common, the town radiates warm and inviting vibes. The trademark of June’s weather rests on the month's impressive sea temperatures, recording a sharp rise up to 67°F (19.4°C) from May's 54.4°F (12.4°C). Weather in June »

Weather in July

July takes centre stage as the warmest and brightest month of the year. With the heat in full swing, visitors and locals flock to the beach, making the most of the warm weather. July is earmarked by its soaring temperatures, peaking at a sweltering 84.4°F (29.1°C). Weather in July »

Weather in August

August maintains the high temperatures from July, exhibiting a slight dip towards the end of the month. Despite being the peak of summer, the slight drop in temperature signifies the inevitable approach of fall. The sea temperature in August hits its highest point, standing at an inviting 76.6°F (24.8°C). Weather in August »

Weather in September

September is a blend of summer's heat and the cooling approach of autumn. The weather becomes noticeably milder as the month progresses. Falling temperatures are a noticeable trait of September, with temperatures night falling to 59.7°F (15.4°C). Weather in September »

Weather in October

In October, the almost forgotten chills of winter start inching their way back. With the transition from the end of summer into the midst of fall, the weather reflects distinct changes. A notably cooler October is characterized by an average minimum temperature of 50°F (10°C). Weather in October »

Weather in November

November brings along a genuine chill to the weather. With falling temperatures and shorter daylight hours, Havre de Grace warmly embraces the approaching winter. Capping off the changes in weather is a notable drop in sea temperature, going from October's 64.9°F (18.3°C) to a much cooler 55.9°F (13.3°C). Weather in November »

Weather in December

December marks the return of winter with a definitive plunge in temperatures. With its share of frosty mornings and chilly evenings, Havre de Grace wraps up the year with a winter wonderland feel. The coldest month of the year, December has an average low of 32.9°F (0.5°C), accompanied by an increase in snowfall to 0.87" (22mm). Weather in December »
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, recording an average high temperature of 37.6°F (3.1°C) and a low temperature of 26.1°F (-3.3°C), is Havre de Grace's coldest month.

What is the driest month?

January is the month with the least rainfall. Rain falls for 8.3 days and accumulates 1.85" (47mm) of precipitation.

How much does it rain?

In Havre de Grace, during the entire year, the rain falls for 149.9 days and collects up to 29.41" (747mm) of precipitation.

When does it snow?

Months with snowfall are January through April, November and December.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 4.6 days and typically aggregates up to 2.17" (55mm) of snow.

How much does it snow in Havre de Grace?

In Havre de Grace, during the entire year, snow falls for 13.7 days and aggregates up to 7.05" (179mm) of snow.

When is the lowest UV index?

The months with the lowest UV index in Havre de Grace are January, February, November and December, with an average maximum UV index of 2.

What month is the ocean coldest?

With an average ocean temperature of 42.4°F (5.8°C), February is the month with the coldest seawater.

What is the month with the least sunshine?

February has the least sunshine of the year, with an average of 4.9h 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?

April is the least humid month, with an average relative humidity of 74%.

What is the most humid month?

With an average relative humidity of 80%, May is the most humid month.

When it does not snow?

In Havre de Grace, snow does not fall in May through October.

What are the months with the highest UV index?

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

When are the longest days?

The month with the longest days in Havre de Grace is June, with an average of 14h and 54min of daylight.

What part of the year is the hottest?

The warmest month is July, with an average high-temperature of 84.4°F (29.1°C) and an average low-temperature of 67.6°F (19.8°C).

What month has the most sunshine?

With an average of 10.8h of sunshine, July has the most sunshine of the year in Havre de Grace.

What is the wettest month?

August is the month with the most rainfall in Havre de Grace. Rain falls for 15.3 days and accumulates 3.82" (97mm) of precipitation.

When is the ocean warmest?

The month with the warmest seawater is August, with an average ocean temperature of 76.6°F (24.8°C).

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.
Today
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Long-term
YearJFMAMJJASOND

Average temperature
Havre de Grace, MD

Average temperature - Havre de Grace, MD

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure
Havre de Grace, MD

Average pressure - Havre de Grace, MD

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Havre de Grace, MD

Average wind speed - Havre de Grace, MD

The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity
Havre de Grace, MD

Average humidity - Havre de Grace, MD

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).

Average rainfall
Havre de Grace, MD

Average rainfall - Havre de Grace, MD

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days
Havre de Grace, MD

Average rainfall days - Havre de Grace, MD

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).

Average snowfall
Havre de Grace, MD

Average snowfall - Havre de Grace, MD

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Havre de Grace, MD

Average snowfall days - Havre de Grace, MD

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature
Havre de Grace, MD

Average sea temperature - Havre de Grace, MD

The best month for swimming (with the highest average sea temperature) is August (76.6°F).
The coldest month (with the lowest average sea temperature) is February (42.5°F).

Average daylight / Average sunshine
Havre de Grace, MD

Average daylight / Average sunshine - Havre de Grace, MD

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days
Havre de Grace, MD

Average sunshine days - Havre de Grace, MD

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.1 days).

Average UV index
Havre de Grace, MD

Average UV index - Havre de Grace, MD

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover
Havre de Grace, MD

Average cloud cover - Havre de Grace, MD

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility
Havre de Grace, MD

Average visibility - Havre de Grace, MD

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

Havre de Grace, Maryland, USA

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