Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The beginning of May signals a rise in the average high-temperature, moving from a refreshing 57.9°F (14.4°C) in April to an agreeable 68.5°F (20.3°C). McHenry, in the month of May, anticipates a consistent average low-temperature of 48.9°F (9.4°C).Humidity
In May, the average relative humidity is 81%.Rainfall
May is the month with the most rainfall in McHenry, Maryland. Rain falls for 20.9 days and accumulates 3.43" (87mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in McHenry. May is the last month it regularly snows in McHenry. During 0.5 snowfall days, in May, McHenry aggregates 0.94" (24mm) of snow. Throughout the year, there are 48.4 snowfall days, and 26.69" (678mm) of snow is accumulated.Daylight
The average length of the day in May in McHenry is 14h and 22min.On the first day of the month, sunrise is at 6:17 am and sunset at 8:11 pm. On the last day of May, in McHenry, sunrise is at 5:51 am and sunset at 8:38 pm EDT.
Sunshine
In May, the average sunshine in McHenry, Maryland, is 8.4h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in McHenry. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What are May temperatures in McHenry?
What is the average humidity in May in McHenry?
What is the wettest month in McHenry?
How many days does it rain in May in McHenry?
What is the last month it snows in McHenry?
How many hours of daylight does McHenry have in May?
When is the sunrise / sunset in May in McHenry?
How many hours of sunshine does McHenry have in May?
What are the months with the highest UV index in McHenry?
What is the UV index reading in May in McHenry?
Average temperature in May
McHenry, MD
- Average high temperature in May: 68.5°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 May: 48.9°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 May
McHenry, MD
- Average pressure in May: 30"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 May
McHenry, MD
- Average wind speed in May: 6.6mph
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 May
McHenry, MD
- Average humidity in May: 81%
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 May
McHenry, MD
- Average rainfall in May: 3.43"
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 May
McHenry, MD
- Average rainfall days in May: 20.9 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).
Average snowfall in May
McHenry, MD
- Average snowfall in May: 0.94"
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 May
McHenry, MD
- Average snowfall days in May: 0.5 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 May /
Average sunshine in May
McHenry, MD
- Average daylight in May: 14h and 2min
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 May: 8h and 2min
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 May
McHenry, MD
- Average sunshine days in May: 8.3 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 May
McHenry, MD
- Average UV index in May: 5
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 May
McHenry, MD
- Average cloud cover in May: 50
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 May
McHenry, MD
- Average visibility in May: 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).
McHenry, Maryland, USA
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