January weather forecast
McHenry, MD

Weather in January

January, the same as December, is a wintry winter month in McHenry, Maryland, with temperature in the range of an average low of 19.6°F (-6.9°C) and an average high of 32°F (0°C).

Temperature

With an average high-temperature of 32°F (0°C) and an average low-temperature of 19.6°F (-6.9°C), January is the coldest month.

Humidity

The average relative humidity in McHenry is 86%.

Rainfall

In McHenry, during January, the rain falls for 8 days and regularly aggregates up to 2.09" (53mm) of precipitation. 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 January, it is snowing for 11.8 days. Throughout January, 5.16" (131mm) of snow is accumulated. Throughout the year, there are 48.4 snowfall days, and 26.69" (678mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9.8h.

Sunshine

January has the least sunshine of the year in McHenry, with an average of 3.1h of sunshine.

UV index

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in McHenry?

With an average high-temperature of 32°F (0°C) and an average low-temperature of 19.6°F (-6.9°C), January is the coldest month in McHenry.

What is the average humidity in January in McHenry?

In January, the average relative humidity in McHenry, Maryland, is 86%.

How many days does it rain in January in McHenry?

In McHenry, in January, it is raining for 8 days, with typically 2.09" (53mm) of accumulated precipitation.

How many days does it snow in January in McHenry?

In McHenry, Maryland, in January, snow falls for 11.8 days, with typically accumulated 5.16" (131mm) of snow.

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

In McHenry, Maryland, the average length of the day in January is 9.8h.

What is the month with the least sunshine in McHenry?

The month with the least sunshine in McHenry, Maryland, is January, with an average of 3.1h of sunshine.

How many hours of sunshine does McHenry have in January?

In January, the average sunshine is 3.1h.

How high is the UV index in January in McHenry?

The average daily maximum UV index in January in McHenry is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in January
McHenry, MD

Average temperature in January - McHenry, MD
  • Average high temperature in January: 32°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 January: 19.6°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 January
McHenry, MD

Average pressure in January - McHenry, MD
  • Average pressure in January: 30.11"

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 January
McHenry, MD

Average wind speed in January - McHenry, MD
  • Average wind speed in January: 9.1mph

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 January
McHenry, MD

Average humidity in January - McHenry, MD
  • Average humidity in January: 86%

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 January
McHenry, MD

Average rainfall in January - McHenry, MD
  • Average rainfall in January: 2.09"

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 January
McHenry, MD

Average rainfall days in January - McHenry, MD
  • Average rainfall days in January: 8 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 January
McHenry, MD

Average snowfall in January - McHenry, MD
  • Average snowfall in January: 5.16"

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 January
McHenry, MD

Average snowfall days in January - McHenry, MD
  • Average snowfall days in January: 11.8 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 January /
Average sunshine in January
McHenry, MD

Average daylight in January / Average sunshine in January - McHenry, MD
  • Average daylight in January: 9.8h

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 January: 3.1h

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 January
McHenry, MD

Average sunshine days in January - McHenry, MD
  • Average sunshine days in January: 14 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 January
McHenry, MD

Average UV index in January - McHenry, MD
  • Average UV index in January: 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 January
McHenry, MD

Average cloud cover in January - McHenry, MD
  • Average cloud cover in January: 70

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 January
McHenry, MD

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