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
Castles Rising, Maryland, experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a fresh 51.3°F (10.7°C) in November to a frosty 42.8°F (6°C). Castles Rising observes an average nighttime low-temperature of 30.4°F (-0.9°C) during the month of December.Humidity
In December, the average relative humidity in Castles Rising is 79%.Rainfall
In Castles Rising, in December, it is raining for 11 days, with typically 2.4" (61mm) of accumulated precipitation. In Castles Rising, during the entire year, the rain falls for 158.9 days and collects up to 32.68" (830mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Castles Rising. In Castles Rising, during December, snow falls for 3.9 days and regularly aggregates up to 1.93" (49mm) of snow. In Castles Rising, during the entire year, snow falls for 23.9 days and aggregates up to 13.31" (338mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Castles Rising.On the first day of the month, sunrise is at 7:09 am and sunset at 4:44 pm. On the last day of December, in Castles Rising, sunrise is at 7:27 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in December in Castles Rising is 4.9h.UV index
The months with the lowest UV index in Castles Rising are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is December in Castles Rising?
What is the average humidity in December in Castles Rising?
How much does it rain in Castles Rising in December?
How many days does it snow in December in Castles Rising?
What is the month with the shortest days in Castles Rising?
How many hours of daylight does Castles Rising have in December?
When is the sunrise / sunset in December in Castles Rising?
How long on average sun shines in December in Castles Rising?
What are the months with the lowest UV index in Castles Rising?
What is the UV index intensity in December in Castles Rising?
Average temperature in December
Castles Rising, MD
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 30.4°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in December
Castles Rising, 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
Castles Rising, MD
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Castles Rising, MD
- Average humidity in December: 79%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, April, July and November (76%).
Average rainfall in December
Castles Rising, MD
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is February (2.13").
Average rainfall days in December
Castles Rising, MD
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Castles Rising, MD
- Average snowfall in December: 1.93"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Castles Rising, MD
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Castles Rising, MD
- Average daylight in December: 9h 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 December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in December
Castles Rising, MD
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
Castles Rising, 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
Castles Rising, MD
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Castles Rising, 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).
Castles Rising, Maryland, USA
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