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 decrease of average high-temperatures is mild in December, with a decline from a chilly 49.1°F (9.5°C) in November to a wintry 39.4°F (4.1°C). Prospect anticipates an average minimum temperature of 28.6°F (-1.9°C) in the month of December.Humidity
In Prospect, the average relative humidity in December is 78%.Rainfall
The month with the most rainfall in Prospect is December, when the rain falls for 11.7 days and typically aggregates up to 3.94" (100mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Prospect. In Prospect, in December, during 5.6 snowfall days, 3.03" (77mm) of snow is typically accumulated. In Prospect, during the entire year, snow falls for 32.2 days and aggregates up to 17.2" (437mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Prospect.On the first day of the month, sunrise is at 6:59 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:32 pm EST.
Sunshine
In Prospect, the average sunshine in December is 4.7h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
How cold is December in Prospect?
What is the average humidity in December in Prospect?
What is the rainiest month in Prospect?
How many days does it rain in December in Prospect?
How many days does it snow in December in Prospect?
What is the month with the shortest days in Prospect?
How many hours of daylight does Prospect have in December?
What time are sunrise and sunset in December in Prospect?
How long on average sun shines in December in Prospect?
When is the lowest UV index in Prospect?
What is the UV index intensity in December in Prospect?
Average temperature in December
Prospect, CT
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in December
Prospect, CT
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Prospect, CT
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Prospect, CT
- Average humidity in December: 78%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Prospect, CT
- Average rainfall in December: 3.94"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Prospect, CT
- Average rainfall days in December: 11.7 days
The months with the highest number of rainy days are May and July (17.9 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in December
Prospect, CT
- Average snowfall in December: 3.03"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Prospect, CT
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is February (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Prospect, CT
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Prospect, CT
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Prospect, CT
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Prospect, CT
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Prospect, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
Prospect, Connecticut, USA
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