Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Montgomery Run, entering December brings a subtle temperature decrement, reducing from November's fresh 53.1°F (11.7°C) to a frosty 44.2°F (6.8°C). In Montgomery Run, the average low-temperature during the month of December is an icy 32.9°F (0.5°C).Humidity
In Montgomery Run, the average relative humidity in December is 76%.Rainfall
In December, in Montgomery Run, the rain falls for 10.2 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. In Montgomery Run, during the entire year, the rain falls for 159.3 days and collects up to 30.31" (770mm) of precipitation.Snowfall
Months with snowfall in Montgomery Run are January through March, November and December. In Montgomery Run, during December, snow falls for 2.9 days and regularly aggregates up to 1.14" (29mm) of snow. Throughout the year, there are 15.9 snowfall days, and 8.7" (221mm) of snow is accumulated.Daylight
The month with the shortest days in Montgomery Run is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:54 pm EST.
Sunshine
In Montgomery Run, the average sunshine in December is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Montgomery Run in December?
What is the average humidity in December in Montgomery Run?
How much does it rain in Montgomery Run in December?
How much does it snow in Montgomery Run in December?
What is the month with the shortest days in Montgomery Run?
What is the average length of the day in December in Montgomery Run?
When are sunrise and sunset in December in Montgomery Run?
How many hours of sunshine does Montgomery Run have in December?
What is the month with the lowest UV index in Montgomery Run?
What is the UV index reading in December in Montgomery Run?
Average temperature in December
Montgomery Run, MD
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Montgomery Run, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Montgomery Run, MD
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Montgomery Run, MD
- Average humidity in December: 76%
The months with the highest relative humidity are May and October (77%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in December
Montgomery Run, MD
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in December
Montgomery Run, MD
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Montgomery Run, MD
- Average snowfall in December: 1.14"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Montgomery Run, MD
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Montgomery Run, MD
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).
Average sunshine days in December
Montgomery Run, MD
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Montgomery Run, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Montgomery Run, MD
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Montgomery Run, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Montgomery Run, Maryland, USA
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