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
As December begins, there is a decrease in the average high-temperature, falling from a frosty 49.6°F (9.8°C) in November to an icy 39.6°F (4.2°C). Baltimore throughout December, experiences an average nighttime temperature of 29.3°F (-1.5°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In December, the rain falls for 10.6 days. Throughout December, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 149.9 rainfall days, and 20.47" (520mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Baltimore, in December, during 7.5 snowfall days, 1.34" (34mm) of snow is typically accumulated. In Baltimore, during the entire year, snow falls for 34.6 days and aggregates up to 7.72" (196mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:33 am and sunset at 5:06 pm. On the last day of December, sunrise is at 7:51 am and sunset at 5:15 pm EST.
Sunshine
In December, the average sunshine is 3.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 during December translates into the following guidance:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Baltimore?
How many hours of daylight does Baltimore have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Baltimore have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Baltimore, OH
- Average high temperature in December: 39.6°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Baltimore, OH
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Baltimore, OH
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Baltimore, OH
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Baltimore, OH
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days in December
Baltimore, OH
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in December
Baltimore, OH
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Baltimore, OH
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Baltimore, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
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: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Baltimore, OH
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Baltimore, OH
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Baltimore, OH
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Baltimore, OH
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January and September (5mi).
Baltimore, Ohio, USA
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