December weather forecastLynn, IN
December
Weather in December
December, the first month of the winter in Lynn, is still a cold month, with an average temperature varying between 37.4°F (3°C) and 27.5°F (-2.5°C).Temperature
Lynn's December weather features a mild decline in high-temperatures, reducing from a chilly 48.4°F (9.1°C) in November to a wintry 37.4°F (3°C). Throughout the month of December, Lynn sees a steady low-temperature average of 27.5°F (-2.5°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In Lynn, in December, during 9.9 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Lynn, during the entire year, the rain falls for 169.7 days and collects up to 31.65" (804mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. December is the month with the most snowfall. Snow falls for 10.2 days and accumulates 3.78" (96mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:43 am and sunset at 5:14 pm. On the last day of December, sunrise is at 8:01 am and sunset at 5:24 pm EST.
Sunshine
The average sunshine in December is 3.9h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Lynn. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 1 in December transforms into the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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
Lynn, IN
- Average high temperature in December: 37.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Lynn, IN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Lynn, IN
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Lynn, IN
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Lynn, IN
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in December
Lynn, IN
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is May (19.9 days).
The months with the least rainy days are January and February (9 days).
Average snowfall in December
Lynn, IN
- Average snowfall in December: 3.78"
The month with the highest snowfall is December (3.78").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Lynn, IN
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (13 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
Lynn, IN
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Lynn, IN
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is May (8.7 days).
Average UV index in December
Lynn, IN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Lynn, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Lynn, IN
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
