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
December indicates a shift in the average high-temperature, from November's cool 50°F (10°C) to a cold 40.6°F (4.8°C). In December, Middle Haddam reports a consistent average low-temperature of 30°F (-1.1°C) during the nights.Humidity
In Middle Haddam, the average relative humidity in December is 76%.Rainfall
In December, the rain falls for 8.6 days. Throughout December, 1.14" (29mm) of precipitation is accumulated. Throughout the year, in Middle Haddam, there are 109.9 rainfall days, and 11.14" (283mm) of precipitation is accumulated.Snowfall
Months with snowfall in Middle Haddam, Connecticut, are January through May, November and December. In December, it is snowing for 3.7 days. Throughout December, 0.55" (14mm) of snow is accumulated. Throughout the year, there are 19.9 snowfall days, and 3.7" (94mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 6:57 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:30 pm EST.
Sunshine
The average sunshine in December is 4.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Middle Haddam in December?
What is the average humidity in December in Middle Haddam?
How many days does it rain in December in Middle Haddam?
How much does it snow in Middle Haddam in December?
What is the month with the shortest days in Middle Haddam?
What is the average length of the day in December in Middle Haddam?
When is the sunrise / sunset in December in Middle Haddam?
How long on average sun shines in December in Middle Haddam?
What are the months with the lowest UV index in Middle Haddam?
What is the UV index intensity in December in Middle Haddam?
Average temperature in December
Middle Haddam, CT
- Average high temperature in December: 40.6°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 (34.7°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Middle Haddam, CT
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Middle Haddam, CT
- Average wind speed in December: 8.4mph
The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Middle Haddam, CT
- Average humidity in December: 76%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Middle Haddam, CT
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in December
Middle Haddam, CT
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Middle Haddam, CT
- Average snowfall in December: 0.55"
The month with the highest snowfall is March (1.14").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Middle Haddam, CT
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is February (5.2 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
Middle Haddam, 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 months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Middle Haddam, CT
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (16.3 days).
Average UV index in December
Middle Haddam, 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
Middle Haddam, CT
- Average cloud cover in December: 50
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Middle Haddam, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, September, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July and August (5mi).
Middle Haddam, Connecticut, USA
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