March weather forecastMcHenry, MD
March
Weather in March
March ushers in the spring season in McHenry, providing a significant relief from the winter chill. The temperature swing in March, from frigid February, is a clear indication of an impending warmer spell ahead. As the ground starts to thaw, the melting snow paves the way for increased rainfall. This month showcases a medley of weather conditions, transitioning between a stubborn winter clasp and an early spring release. The highest rainfall of 2.13" (54mm) for the year is observed in March, alongside a rising trend in daylight and sunshine hours, hinting at a shifting weather paradigm.Temperature
The start of March brings a subtle shift in the average high-temperature, edging up from February's cold 37°F (2.8°C) to a chilly 45.3°F (7.4°C). The low-temperature average for McHenry during March stands at a subzero cold 30°F (-1.1°C).Humidity
The average relative humidity in March is 82%.Rainfall
In March, the rain falls for 11.1 days. Throughout March, 2.13" (54mm) of precipitation is 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 March, snow falls for 7.3 days, with typically accumulated 3.54" (90mm) of snow. Throughout the year, there are 48.4 snowfall days, and 26.69" (678mm) of snow is accumulated.Daylight
In March, the average length of the day is 11h and 59min.On the first day of March, sunrise is at 6:49 am and sunset at 6:10 pm EST. On the last day of the month, sunrise is at 7:01 am and sunset at 7:40 pm EDT.
Note: 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 lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
In McHenry, the average sunshine in March is 5.5h.UV index
The average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 during March translates into the following directions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure in March
McHenry, MD
- Average pressure in March: 30.08"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 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).
Average humidity in March
McHenry, MD
- Average humidity in March: 82%
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 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").
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).
Average snowfall in March
McHenry, MD
- Average snowfall in March: 3.54"
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 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).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
McHenry, MD
- Average daylight in March: 12h and 0min
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 March: 5h and 30min
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 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).
Average UV index in March
McHenry, MD
- Average UV index in March: 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 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).
Average visibility in March
McHenry, MD
- Average visibility in March: 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).





