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
The advent of December brings a subtle shift in temperature, with the average high moving from a frosty 46.9°F (8.3°C) in November to a cold 38.3°F (3.5°C). Throughout the month of December, Deer Park sees a steady low-temperature average of 26.8°F (-2.9°C).Humidity
In December, the average relative humidity is 84%.Rainfall
In December, the rain falls for 12.3 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. In Deer Park, during the entire year, the rain falls for 185.9 days and collects up to 35.16" (893mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Deer Park, in December, snow falls for 13 days, with typically accumulated 6.22" (158mm) of snow. Throughout the year, there are 64.2 snowfall days, and 35.2" (894mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:18 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:03 pm EST.
Sunshine
The average sunshine in December is 3.8h.UV index
The month with the lowest UV index in Deer Park, Maryland, is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Deer Park have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Deer Park, MD
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Deer Park, MD
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Deer Park, MD
- Average wind speed in December: 8.2mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Deer Park, MD
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).
Average rainfall in December
Deer Park, MD
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in December
Deer Park, MD
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Deer Park, MD
- Average snowfall in December: 6.22"
The month with the highest snowfall is February (7.6").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Deer Park, MD
- Average snowfall days in December: 13 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Deer Park, 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: 3h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Deer Park, MD
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is May (6.9 days).
Average UV index in December
Deer Park, MD
- Average UV index in December: 1
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 December
Deer Park, MD
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Deer Park, MD
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).
Deer Park, Maryland, USA
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