December weather forecastLongville, MD
December
Weather in December
The first month of the winter, December, is still a cold month in Longville, Maryland, with an average temperature varying between 42.6°F (5.9°C) and 30.4°F (-0.9°C).Temperature
The onset of December is marked by a minor decrease in temperature, transitioning from a cool 51.3°F (10.7°C) in November to a cold 42.6°F (5.9°C). Longville encounters a steady low-temperature average of 30.4°F (-0.9°C) throughout the month of December.Humidity
In Longville, Maryland, the average relative humidity in December is 79%.Rainfall
In Longville, in December, it is raining for 9.8 days, with typically 1.77" (45mm) of accumulated precipitation. In Longville, during the entire year, the rain falls for 157.5 days and collects up to 27.52" (699mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 3.9 days. Throughout December, 1.57" (40mm) of snow is accumulated. In Longville, during the entire year, snow falls for 22.3 days and aggregates up to 9.76" (248mm) of snow.Daylight
The month with the shortest days in Longville is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:11 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:54 pm EST.
Sunshine
In December, the average sunshine in Longville is 5h.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 reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Longville, MD
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 30.4°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Longville, 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 (29.95"Hg).
Average wind speed in December
Longville, MD
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Longville, MD
- Average humidity in December: 79%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Longville, MD
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in December
Longville, MD
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
Longville, MD
- Average snowfall in December: 1.57"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Longville, MD
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Longville, MD
- Average daylight in December: 9h and 24min
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 December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Longville, MD
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Longville, 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
Longville, MD
- Average cloud cover in December: 47
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Longville, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
