December weather forecastMonitor, IN
December
Weather in December
The first month of the winter, December, is also an icy month in Monitor, Indiana, with an average temperature varying between 27.3°F (-2.6°C) and 37.6°F (3.1°C).Temperature
The start of December signals a decrease in the average high-temperature, transitioning from a chilly 48.2°F (9°C) in November to an icy 37.6°F (3.1°C). In the month of December, Monitor records a consistent average low-temperature of 27.3°F (-2.6°C).Humidity
The average relative humidity in December in Monitor is 82%.Rainfall
In December, in Monitor, the rain falls for 9.5 days. Throughout December, 1.61" (41mm) of precipitation is accumulated. In Monitor, during the entire year, the rain falls for 161.4 days and collects up to 26.89" (683mm) of precipitation.Snowfall
Months with snowfall in Monitor are January through April, October through December. In December, it is snowing for 8.8 days. Throughout December, 2.44" (62mm) of snow is accumulated. Throughout the year, there are 41.6 snowfall days, and 11.57" (294mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:51 am and sunset at 5:21 pm. On the last day of December, sunrise is at 8:09 am and sunset at 5:30 pm EST.
Sunshine
The average sunshine in December in Monitor, Indiana, is 4.3h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Monitor, IN
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Monitor, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Monitor, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Monitor, IN
- Average humidity in December: 82%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Monitor, IN
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is February (1.54").
Average rainfall days in December
Monitor, IN
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Monitor, IN
- Average snowfall in December: 2.44"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Monitor, IN
- Average snowfall days in December: 8.8 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Monitor, IN
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Monitor, IN
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is November (17.5 days).
The months with the least sunshine days are May and July (9.3 days).
Average UV index in December
Monitor, IN
- 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, October, November and December (UV index 2).
Average cloud cover in December
Monitor, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are June, July, August and September (Cloud cover 33).
Average visibility in December
Monitor, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





