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
Cromwell Manor, Maryland, in December undergoes a slight reduction in the average high-temperature, shifting from November's fresh 53.4°F (11.9°C) to a chilly 45.5°F (7.5°C). During December, Cromwell Manor observes a consistent average nighttime temperature of 34.2°F (1.2°C).Humidity
In Cromwell Manor, the average relative humidity in December is 76%.Rainfall
In Cromwell Manor, Maryland, in December, during 10.1 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Cromwell Manor, during the entire year, the rain falls for 156.3 days and collects up to 29.61" (752mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, in Cromwell Manor, it is snowing for 2.2 days. Throughout December, 0.79" (20mm) of snow is accumulated. In Cromwell Manor, during the entire year, snow falls for 12.8 days and aggregates up to 6.77" (172mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:53 pm EST.
Sunshine
In December, the average sunshine in Cromwell Manor is 5.2h.UV index
The months with the lowest UV index in Cromwell Manor, Maryland, are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What is the average December temperature in Cromwell Manor?
What is the average humidity in December in Cromwell Manor?
How many days does it rain in December in Cromwell Manor?
How many days does it snow in December in Cromwell Manor?
What is the month with the shortest days in Cromwell Manor?
What is the average length of the day in December in Cromwell Manor?
When are sunrise and sunset in December in Cromwell Manor?
How long on average sun shines in December in Cromwell Manor?
What is the month with the lowest UV index in Cromwell Manor?
What is the UV index intensity in December in Cromwell Manor?
Average temperature in December
Cromwell Manor, MD
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in December
Cromwell Manor, 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
Cromwell Manor, MD
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Cromwell Manor, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in December
Cromwell Manor, MD
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in December
Cromwell Manor, MD
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Cromwell Manor, MD
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Cromwell Manor, MD
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Cromwell Manor, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Cromwell Manor, MD
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Cromwell Manor, 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
Cromwell Manor, MD
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Cromwell Manor, 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).
Cromwell Manor, Maryland, USA
Weather forecast for your location
2. Allow the app to use your location
