March weather forecast and climate
McHenry, MD

Weather in March

The first month of the spring, March, is a frosty month in McHenry, Maryland, with average temperature varying between 45.3°F (7.4°C) and 30°F (-1.1°C).

Temperature

In March, the average high-temperature slightly increases, from a wintry 37°F (2.8°C) in February, to a frosty 45.3°F (7.4°C). The average low-temperature, in McHenry, is 30°F (-1.1°C).

Humidity

In McHenry, Maryland, the average relative humidity in March is 82%.

Rainfall

In McHenry, during 11.1 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, in McHenry, there are 166.5 rainfall days, and 30.79" (782mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In McHenry, in March, during 7.3 snowfall days, 3.54" (90mm) of snow is typically accumulated. In McHenry, during the entire year, snow falls for 48.4 days, and aggregates up to 26.69" (678mm) of snow.

Daylight

In McHenry, the average length of the day is 12h.

Sunshine

The average sunshine in McHenry, Maryland, is 5.5h.

UV index

In McHenry, the average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in March in McHenry?

In McHenry, Maryland, the average relative humidity in March is 82%.

How much does it rain in McHenry in March?

In March, the rain falls for 11.1 days. Throughout March, 2.13" (54mm) of precipitation is accumulated.

How many days does it snow in March in McHenry?

In McHenry, in March, snow falls for 7.3 days, with typically accumulated 3.54" (90mm) of snow.

What is the average length of the day in March in McHenry?

In McHenry, the average length of the day in March is 12h.

How long on average sun shines in March in McHenry?

The average sunshine in March is 5.5h.

What is the UV index reading in March in McHenry?

The average daily maximum UV index in March is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in March
McHenry, MD

Average temperature in March - McHenry, MD
  • Average high temperature in March: 45.3°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in March: 30°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure in March
McHenry, MD

Average pressure in March - McHenry, MD
  • Average pressure in March: 30.08"

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

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Average wind speed in March
McHenry, MD

Average wind speed in March - McHenry, MD
  • Average wind speed in March: 8.1mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in March
McHenry, MD

Average humidity in March - McHenry, MD
  • Average humidity in March: 82%

The month with the highest relative humidity is February (87%).
Months with the lowest relative humidity are April, June, July and August (79%).

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Average rainfall in March
McHenry, MD

Average rainfall in March - McHenry, MD
  • Average rainfall in March: 2.13"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.85").

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Average rainfall days in March
McHenry, MD

Average rainfall days in March - McHenry, MD
  • Average rainfall days in March: 11.1 days

The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in March
McHenry, MD

Average snowfall in March - McHenry, MD
  • Average snowfall in March: 3.54"

The month with the highest snowfall is February (5.28").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in March
McHenry, MD

Average snowfall days in March - McHenry, MD
  • Average snowfall days in March: 7.3 days

The month with the highest number of snowfall days is January (11.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in March /
Average sunshine in March
McHenry, MD

Average daylight in March / Average sunshine in March - McHenry, MD
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in March: 5.5h

The month with the most sunshine is August (Average sunshine: 9.7h).
The month with the least sunshine is January (Average sunshine: 3.1h).

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Average sunshine days in March
McHenry, MD

Average sunshine days in March - McHenry, MD
  • Average sunshine days in March: 14.3 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (8.3 days).

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Average UV index in March
McHenry, MD

Average UV index in March - McHenry, MD
  • Average UV index in March: 2

Months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in March
McHenry, MD

Average cloud cover in March - McHenry, MD
  • Average cloud cover in March: 60

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 40).

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Average visibility in March
McHenry, MD

Average visibility in March - McHenry, MD
  • Average visibility in March: 5mi

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

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