October weather forecastMcHenry, MD
October
Weather in October
October in McHenry signifies the peak of autumn, reflecting a vivid display of colors from fall foliage distinctly contrasting with the October sky. With the environment metamorphosed into a kaleidoscope of fall shades, the city takes on a new identity. As the temperatures witness a constant decline, this month facilitates ample opportunities for long treks and drives to relish the changing landscape. Halloween at the end of October typically sees chilly evenings. A dip in temperature to 59.2°F (15.1°C)chills the weather in October, skirting the onset of winter.Temperature
October brings a decrease in the average high-temperature, shifting from an agreeable 72.1°F (22.3°C) in September to a moderate 59.2°F (15.1°C). McHenry records a consistent low-temperature of 42.8°F (6°C) during October nights.Humidity
In McHenry, the average relative humidity in October is 82%.Rainfall
In October, the rain falls for 14.1 days. Throughout October, 2.64" (67mm) 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
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 2.5 snowfall days, it receives 1.89" (48mm) of snow. Throughout the year, there are 48.4 snowfall days, and 26.69" (678mm) of snow is accumulated.Daylight
In October, the average length of the day in McHenry is 11h and 9min.On the first day of October, sunrise is at 7:14 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 6:16 pm EDT.
Sunshine
The average sunshine in October is 5.2h.UV index
The average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 2 during October 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. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
McHenry, MD
- Average high temperature in October: 59.2°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 October: 42.8°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 October
McHenry, MD
- Average pressure in October: 30.04"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 October
McHenry, MD
- Average wind speed in October: 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 October
McHenry, MD
- Average humidity in October: 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 October
McHenry, MD
- Average rainfall in October: 2.64"
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 October
McHenry, MD
- Average rainfall days in October: 14.1 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 October
McHenry, MD
- Average snowfall in October: 1.89"
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 October
McHenry, MD
- Average snowfall days in October: 2.5 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 October /
Average sunshine in October
McHenry, MD
- Average daylight in October: 11h and 6min
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 October: 5h and 12min
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 October
McHenry, MD
- Average sunshine days in October: 13.6 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 October
McHenry, MD
- Average UV index in October: 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 October
McHenry, MD
- Average cloud cover in October: 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).
Average visibility in October
McHenry, MD
- Average visibility in October: 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).





