December weather forecastValley Brook, IN
December
Weather in December
December, the first month of the winter in Valley Brook, is also an icy month, with an average temperature varying between 36.5°F (2.5°C) and 26.6°F (-3°C).Temperature
The start of December comes with a reduction in the average high-temperature, receding from a frosty 47.5°F (8.6°C) in November to an icy 36.5°F (2.5°C). Valley Brook's nighttime temperature during December is consistently averaged at a freezing cold 26.6°F (-3°C).Humidity
January, February, July, August and December, with an average relative humidity of 83%, are the most humid months in Valley Brook.Rainfall
In Valley Brook, in December, it is raining for 9.3 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, in Valley Brook, there are 157.1 rainfall days, and 23.27" (591mm) of precipitation is accumulated.Snowfall
Months with snowfall in Valley Brook are January through May, October through December. In December, in Valley Brook, it is snowing for 10.1 days. Throughout December, 1.77" (45mm) of snow is accumulated. In Valley Brook, during the entire year, snow falls for 47.4 days and aggregates up to 10.39" (264mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Valley Brook, Indiana.On the first day of December, sunrise is at 7:48 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:25 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The month with the lowest UV index in Valley Brook is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 1 in December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Valley Brook, IN
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 26.6°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 (19°F).
Average pressure in December
Valley Brook, IN
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Valley Brook, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Valley Brook, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January, February, July, August and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Valley Brook, IN
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in December
Valley Brook, IN
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Valley Brook, IN
- Average snowfall in December: 1.77"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Valley Brook, IN
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Valley Brook, IN
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Valley Brook, IN
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in December
Valley Brook, IN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Valley Brook, IN
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Valley Brook, IN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
