April weather forecast
McHenry, MD

Weather in April

April in McHenry, Maryland, is a moderate spring month, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 57.9°F (14.4°C).

Temperature

In McHenry, the average high-temperature rises, from a frosty 45.3°F (7.4°C) in March, to a moderate 57.9°F (14.4°C). In April, the average low-temperature is 39.4°F (4.1°C).

Humidity

Months with the lowest humidity are April, June through August, with an average relative humidity of 79%.

Rainfall

In McHenry, Maryland,, during 15.9 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In McHenry, during the entire year, the rain falls for 166.5 days and collects up to 30.79" (782mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in McHenry. In April, in McHenry, it is snowing for 2.3 days. Throughout April, 1.38" (35mm) of snow is accumulated. In McHenry, during the entire year, snow falls for 48.4 days, and aggregates up to 26.69" (678mm) of snow.

Daylight

The average length of the day in McHenry is 13.3h.

Sunshine

In McHenry, the average sunshine is 7.6h.

UV index

In McHenry, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 least humid month in McHenry?

April, June through August, with an average relative humidity of 79%, are the least humid months in McHenry.

What is the average humidity in April in McHenry?

In April, the average relative humidity in McHenry is 79%.

How much does it rain in McHenry in April?

In April, in McHenry, the rain falls for 15.9 days. Throughout April, 2.76" (70mm) of precipitation is accumulated.

How many days does it snow in April in McHenry?

In McHenry, during April, snow falls for 2.3 days and regularly aggregates up to 1.38" (35mm) of snow.

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

The average length of the day in April is 13.3h.

How long on average sun shines in April in McHenry?

The average sunshine in April in McHenry is 7.6h.

What is the UV index intensity in April in McHenry?

In April, the average daily maximum UV index in McHenry, Maryland, is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in April
McHenry, MD

Average temperature in April - McHenry, MD
  • Average high temperature in April: 57.9°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 April: 39.4°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 April
McHenry, MD

Average pressure in April - McHenry, MD
  • Average pressure in April: 29.98"

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 April
McHenry, MD

Average wind speed in April - McHenry, MD
  • Average wind speed in April: 8mph

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 April
McHenry, MD

Average humidity in April - McHenry, MD
  • Average humidity in April: 79%

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 April
McHenry, MD

Average rainfall in April - McHenry, MD
  • Average rainfall in April: 2.76"

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 April
McHenry, MD

Average rainfall days in April - McHenry, MD
  • Average rainfall days in April: 15.9 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 April
McHenry, MD

Average snowfall in April - McHenry, MD
  • Average snowfall in April: 1.38"

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 April
McHenry, MD

Average snowfall days in April - McHenry, MD
  • Average snowfall days in April: 2.3 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 April /
Average sunshine in April
McHenry, MD

Average daylight in April / Average sunshine in April - McHenry, MD
  • Average daylight in April: 13.3h

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 April: 7.6h

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 April
McHenry, MD

Average sunshine days in April - McHenry, MD
  • Average sunshine days in April: 12.2 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 April
McHenry, MD

Average UV index in April - McHenry, MD
  • Average UV index in April: 3

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 April
McHenry, MD

Average cloud cover in April - McHenry, MD
  • Average cloud cover in April: 51

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 April
McHenry, MD

Average visibility in April - McHenry, MD
  • Average visibility in April: 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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