December weather forecastRockport, IN
December
Weather in December
December, the first month of the winter in Rockport, is also a frosty month, with an average temperature varying between 33.1°F (0.6°C) and 44.8°F (7.1°C).Temperature
The onset of December brings a small shift in high-temperatures, falling from a fresh 53.6°F (12°C) in November to a chilly 44.8°F (7.1°C). The low-temperature average for Rockport during December stands at an icy 33.1°F (0.6°C).Humidity
In December, the average relative humidity is 79%.Rainfall
In Rockport, in December, it is raining for 10.5 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 153.5 rainfall days, and 30.67" (779mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Rockport, during December, snow falls for 4.5 days and regularly aggregates up to 1.22" (31mm) of snow. Throughout the year, there are 21.9 snowfall days, and 6.1" (155mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:45 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:03 am and sunset at 4:39 pm CST.
Sunshine
In December, the average sunshine is 4.5h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rockport, IN
- Average high temperature in December: 44.8°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in December
Rockport, IN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Rockport, IN
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).
Average humidity in December
Rockport, IN
- Average humidity in December: 79%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Rockport, IN
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is April (3.94").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
Rockport, IN
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (17.6 days).
The months with the least rainy days are October and November (9.5 days).
Average snowfall in December
Rockport, IN
- Average snowfall in December: 1.22"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Rockport, IN
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.8 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
Rockport, IN
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Rockport, IN
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in December
Rockport, IN
- 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 and December (UV index 2).
Average cloud cover in December
Rockport, IN
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Rockport, IN
- 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).
