Climate and monthly weather forecast
Hagerstown, MD

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Bright pink blossoms of flowers, clean paths, a bridge, and scenic trees in the neat lawns of a city park in Hagerstown, Maryland
Bright pink blossoms of flowers, clean paths, a bridge, and scenic trees in the neat lawns of a city park in Hagerstown, Maryland

The climate of Hagerstown

Hagerstown, Maryland is geographically located within the bounds of the humid subtropical climate zone, making it a recipient of Köppen's Cfa classification. The climate in this region remains mild throughout the majority of the year, but manifests distinguishable seasonal patterns with unique characteristics.

Seasonal temperatures surface a clear embodiment of these patterns. Month-to-month, readings mark delineated shifts, in sync with the pace of the seasons. Taking this into perspective, January is the city's coldest month, showcasing an average high of 36.1°F (2.3°C) and a low of 22.8°F (-5.1°C), while the peak of summer in July sees a significant jump in temperatures, bringing the highs to 84.6°F (29.2°C) and the lows to a mild 63.7°F (17.6°C).

Hagerstown sees a fairly consistent humidity level with relatively minor fluctuations between 75% to 79%. During the colder months, there is a tendency for the visibility to dip to around 5 miles, but it generally goes back up to an average of 6 miles during the warmer months.

The city receives an average rainfall of between 1.97 to 3.11" (79mm) throughout the year. Rainfall becomes more frequent around May and lessens significantly by November. Snowfall is primarily observed from December through March, with the highest accumulation in January at 4.21" (107mm).

The best time to visit Hagerstown

Given Hagerstown's subtropical overall climate, visiting during late spring to early autumn can be a good choice. The temperatures typically range from a comfortable 61.5°F (16.4°C) in April to a warm 82.2°F (27.9°C) in August. There are longer daylight hours, typically between 13.3 to 14.6 hours per day, aiding in the exploration of the city's many attractions. Furthermore, these months are relatively dry with sunshine hours peaking to as much as 10.6 hours in July, although visitors should still anticipate some short, sporadic showers.

The worst time to visit Hagerstown

Winter may not be the most favorable period to explore Hagerstown due to the marked decrease in temperature, snowfall, and reduced visibility. January, in particular, offers a chilling reminder of Hagerstown's climatic contrasts, with average high temperatures plummeting to 36.1°F (2.3°C) and lows stooping to 22.8°F (-5.1°C). Snowfall is a usual occurrence, with average accumulations of 4.21" (107mm) in January.

Spring weather in Hagerstown

Emerging from winter, spring in Hagerstown showcases a brisk, appreciable increase in temperatures. From the chilly average high of 49.3°F (9.6°C) in March, the spring sun warmly kisses the city, bringing the highs up to 72°F (22.2°C) by May. There's also a noticeable lengthening of daylight hours from 12 to 14.4 hours, coupled with increased visibility up to 6 miles in May. However, spring also brings the start of the rainy season, with rainfall increasing to 2.68" (68mm) in April.

Summer weather in Hagerstown

Summer in Hagerstown is notably warm, with high temperatures peaking at 84.6°F (29.2°C) in July. The relative humidity wavers around 75 to 76%, making for longer periods of muggy conditions. Rainfall in summer averages between 2.36" (60mm) to 2.95" (75mm), with most of the downpours occurring in late afternoons or early evenings. Despite these occasional showers, the city relishes in ample sunshine with daylight lasting for as long as 14.9 hours in June.

Autumn weather in Hagerstown

Autumn is distinguished by progressively cooling temperatures, receding from the summer highs of 75.6°F (24.2°C) in September down to a much cooler 50.7°F (10.4°C) in November. Rain showers are common during this season, with an average rainfall between 2.09 to 2.6" (66mm). The amount of daily sunshine diminishes as the season closes, from 8.8 hours in September to 5.7 hours in November.

Winter weather in Hagerstown

Winter brings a cold, wintry atmosphere to Hagerstown. December through February shows significant drops in temperature with average highs ranging from 36.1°F (2.3°C) to 41.5°F (5.3°C) and average lows between 22.8°F (-5.1°C) to 29.3°F (-1.5°C). Snowfall is prevalent during this season with an average accumulation of 4.21" (107mm) in January. shortening daylight hours, reduced visibility, and increasing cloud cover, further contribute to the city's wintery demeanor.

Weather in January

A chilly start to the year awaits in Hagerstown, with low temperatures dipping to 22.8°F (-5.1°C). January exhibits a prevalence for precipitation, with residents preparing for a mix of rain and snowfall. The daylight hours are at their lowest, with sunshine occasionally peeping through the mostly cloudy days. Weather in January »

Weather in February

With February, Hagerstown experiences a slight escalation in temperature compared to January. Moisture still defines the weather pattern, and the onset of rain and snow continues. An increase in daylight hours compared to the previous month warms up the cityscape while the relative humidity remains steady. Weather in February »

Weather in March

March signals a shift with a noticeable rise in temperature levels in Hagerstown. The frosty winter gradually gives way to spring, with snowfall steadily decreasing. Daylight hours continue to lengthen as the sun moves closer to the equator. Weather in March »

Weather in April

At the arrival of April, weather conditions in Hagerstown experience a major turnaround, leading to mildly warmer days. The chance of snowfall dramatically lessens, marking the culmination of winter. Instead, rainfall becomes more prominent, keeping the city damp. Weather in April »

Weather in May

May introduces summer's onset in Hagerstown, making it distinctly warmer than April. The greening environment sees increased hours of sunshine, brightening up the city. The aroma of spring is evident with flowers blooming and trees lush with leaves. Weather in May »

Weather in June

June sees a notable rise in temperature, marking the true arrival of summer in Hagerstown. Longer daylight hours set the stage for outdoor enthusiasts to make the most of this time. The charming summer weather is accompanied by a slight drop in rainfall as compared to May, resulting in drier days. Weather in June »

Weather in July

July is the warmest month in Hagerstown as the temperature climbs to 84.6°F (29.2°C). While days can be sultry, evenings cool down offering a bit of respite. The abundant sunshine however, often induces high levels of humidity. Exploring early morning or afters sunset provides a majestic backdrop along with pleasing weather conditions. Weather in July »

Weather in August

A subtle decrease in temperature marks August weather in Hagerstown. While rainfall is less prevalent compared to July, humidity levels remain constant signalling typical summer's end. Hints of autumn can be faintly observed towards the month's latter part. Weather in August »

Weather in September

September brings a more perceptible transition towards fall in Hagerstown, with temperatures cooling down from previous months. The decreasing sunshine hours make room for longer evenings. Picturesque landscapes begin to take over, starring the first fall colors. Weather in September »

Weather in October

In October, Hagerstown wears a blanket of vibrant fall colors. The city experiences a descent in temperature, indicating approaching winters. The weather during this time skews toward the chillier side, especially during late evenings and early mornings. Weather in October »

Weather in November

November arrives with a distinct chill in Hagerstown, showcasing a stark contrast to October's mild coolness. The fall leaves start to disappear, transitioning towards the bleak winter landscape. Shorter days bring earlier sunsets, leading to longer, colder nights. Weather in November »

Weather in December

December in Hagerstown is marked by the arrival of winter in full force. The picturesque snowfall increase from 0.59" (15mm) in November to 2.17" (55mm) in December, painting Hagerstown white. Chilly days bring along a festive mood to the city. Weather in December »
Updated: Aug 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

The month of January, characterized by an average high of 36.1°F (2.3°C) and a low of 22.8°F (-5.1°C), is recognized as the coldest in Hagerstown.

How many days does it rain?

Throughout the year, there are 164.7 rainfall days, and 29.17" (741mm) of precipitation is accumulated.

When does it snow?

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

When does it snow the most?

January is the month with the most snowfall. Snow falls for 9 days and accumulates 4.21" (107mm) of snow.

How many days does it snow?

Throughout the year, there are 28.6 snowfall days, and 14.65" (372mm) of snow is accumulated.

When is the lowest UV index?

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

What is the driest month?

February is the month with the least rainfall in Hagerstown, Maryland. Rain falls for 10.4 days and accumulates 1.97" (50mm) of precipitation.

What is the month with the least sunshine?

The month with the least sunshine is February, with an average of 4.7h 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 and July, with an average relative humidity of 75%, are the least humid months.

What are the most humid months?

May and October, with an average relative humidity of 79%, are most humid months.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 3.11" (79mm) of precipitation.

When it does not snow?

In Hagerstown, snow does not fall in May through September.

What is the month with the highest UV index?

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

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What are the warmest months?

July brings the highest temperatures in Hagerstown, with an average high of 84.6°F (29.2°C) and an average low of 63.7°F (17.6°C).

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.6h of sunshine.

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.
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Average temperature
Hagerstown, MD

Average temperature - Hagerstown, MD

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.1°F).

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average pressure
Hagerstown, MD

Average pressure - Hagerstown, MD

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Hagerstown, MD

Average wind speed - Hagerstown, MD

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity
Hagerstown, MD

Average humidity - Hagerstown, MD

The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall
Hagerstown, MD

Average rainfall - Hagerstown, MD

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days
Hagerstown, MD

Average rainfall days - Hagerstown, MD

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.8 days).

Average snowfall
Hagerstown, MD

Average snowfall - Hagerstown, MD

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Hagerstown, MD

Average snowfall days - Hagerstown, MD

The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Hagerstown, MD

Average daylight / Average sunshine - Hagerstown, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days
Hagerstown, MD

Average sunshine days - Hagerstown, MD

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).

Average UV index
Hagerstown, MD

Average UV index - Hagerstown, MD

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

Average cloud cover
Hagerstown, MD

Average cloud cover - Hagerstown, MD

The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility
Hagerstown, MD

Average visibility - Hagerstown, MD

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

Hagerstown, Maryland, USA

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