December weather forecastKirby, IN
December
Weather in December
December, the first month of the winter in Kirby, is also an icy month, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 40.6°F (4.8°C).Temperature
Arrival of December comes with a reduction in the average high-temperature, falling from a cool 51.3°F (10.7°C) in November to an icy 40.6°F (4.8°C). In December, in Kirby, the average low-temperature is a freezing cold 29.3°F (-1.5°C).Humidity
May and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In Kirby, in December, it is raining for 9.5 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 150.5 rainfall days, and 27.56" (700mm) of precipitation is accumulated.Snowfall
Months with snowfall in Kirby, Indiana, are January through April, November and December. In December, it is snowing for 5.8 days. Throughout December, 1.85" (47mm) of snow is accumulated. Throughout the year, there are 26.7 snowfall days, and 9.13" (232mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:47 am and sunset at 5:24 pm. On the last day of December, in Kirby, sunrise is at 8:05 am and sunset at 5:33 pm EST.
Sunshine
With an average of 4.2h of sunshine, December has the least sunshine of the year in Kirby.UV index
The months with the lowest UV index are January, February, October and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kirby, IN
- Average high temperature in December: 40.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Kirby, IN
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Kirby, IN
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Kirby, IN
- Average humidity in December: 82%
The months with the highest relative humidity are May and December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Kirby, IN
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is April (3.11").
The driest months (with the least rainfall) are September and October (1.65").
Average rainfall days in December
Kirby, IN
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Kirby, IN
- Average snowfall in December: 1.85"
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Kirby, IN
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (7.1 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
Kirby, IN
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Kirby, IN
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in December
Kirby, 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, October and December (UV index 2).
Average cloud cover in December
Kirby, IN
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Kirby, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
