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
Start of December brings a shift in the average high-temperature, falling from November's chilly 46.2°F (7.9°C) to an icy 36°F (2.2°C). Lyons registers a gentle descent to an average nighttime low of 27.1°F (-2.7°C) in December from its daytime highs.Humidity
In Lyons, the average relative humidity in December is 83%.Rainfall
In December, the rain falls for 7.2 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. In Lyons, during the entire year, the rain falls for 133.6 days and collects up to 14.45" (367mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Lyons, in December, snow falls for 10.9 days, with typically accumulated 1.81" (46mm) of snow. In Lyons, during the entire year, snow falls for 53.8 days and aggregates up to 10.51" (267mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:20 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:39 am and sunset at 4:43 pm EST.
Sunshine
In Lyons, the average sunshine in December is 3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Lyons in December?
What is the average humidity in December in Lyons?
How much does it rain in Lyons in December?
How much does it snow in Lyons in December?
What is the month with the shortest days in Lyons?
How many hours of daylight does Lyons have in December?
What time are sunrise and sunset in December in Lyons?
How many hours of sunshine does Lyons have in December?
What are the months with the lowest UV index in Lyons?
What is the UV index intensity in December in Lyons?
Average temperature in December
Lyons, NY
- Average high temperature in December: 36°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Lyons, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Lyons, NY
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Lyons, NY
- Average humidity in December: 83%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and September (77%).
Average rainfall in December
Lyons, NY
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is October (1.81").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Lyons, NY
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in December
Lyons, NY
- Average snowfall in December: 1.81"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lyons, NY
- Average snowfall days in December: 10.9 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lyons, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in December
Lyons, NY
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is August (12.3 days).
Average UV index in December
Lyons, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Lyons, NY
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Lyons, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lyons, New York, USA
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