January weather forecastMcHenry, MD
January
Weather in January
The arrival of the new year in McHenry, Maryland, means bracing for the coldest month, with an average high temperature peaking at 32°F (0°C). A heavy overcast sky paints a peaceful winter picture, with dense cloud coverage, a reduction in sunshine hours, and decreased visibility adding to the wintry atmosphere. Snow showers are plausible during this period, transforming the cityscape into a frosty wonderland, further impeded by annual lowest daylight hours. Post sunset, temperatures tend to plummet, advising residents to bundle up in warm layers to navigate comfortably. Even though January is the month with the highest cloud percentage, the atmospheric pressure remains stable, signifying a slightly quieter weather pattern.Temperature
January, marked by an average high-temperature of 32°F (0°C) and a low-temperature of 19.6°F (-6.9°C), is the coldest month.Humidity
In January, the average relative humidity is 86%.Rainfall
In McHenry, in January, during 8 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, 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 January, snow falls for 11.8 days, with typically accumulated 5.16" (131mm) of snow. 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 in January is 9h and 45min.On the first day of the month, sunrise is at 7:37 am and sunset at 5:03 pm. On the last day of January, sunrise is at 7:25 am and sunset at 5:35 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.1h of sunshine.UV index
In McHenry, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure in January
McHenry, MD
- Average pressure in January: 30.11"Hg
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 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).
Average humidity in January
McHenry, MD
- Average humidity in January: 86%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June, July and August (79%).
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").
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).
Average snowfall in January
McHenry, MD
- Average snowfall in January: 5.16"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July, August and September (0").
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).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
McHenry, MD
- Average daylight in January: 9h and 48min
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).
- Average sunshine in January: 3h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
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).
Average UV index in January
McHenry, MD
- Average UV index in January: 2
The 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).
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).
Average visibility in January
McHenry, MD
- Average visibility in January: 5mi
The 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).
