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
The month of December sees the lowest average temperatures, reaching 43.7°F (6.5°C) at the peak and 26.6°F (-3°C) at the low.Humidity
The average relative humidity in December in Fort Lyon is 57%.Rainfall
January, November and December are months with the least rain in Fort Lyon, Colorado, when the rain falls for 3.6 days and typically aggregates up to 0.35" (9mm) of rain.Snowfall
Months with snowfall in Fort Lyon are January through May, October through December. In December, in Fort Lyon, it is snowing for 4.8 days. Throughout December, 1.46" (37mm) of snow is accumulated. Throughout the year, in Fort Lyon, Colorado, there are 23.2 snowfall days, and 10.28" (261mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December in Fort Lyon, sunrise is at 6:50 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:43 pm MST.
Sunshine
In Fort Lyon, the average sunshine in December is 6.8h.UV index
January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Fort Lyon, Colorado. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What is the coldest month in Fort Lyon?
How cold is December in Fort Lyon?
What is the average humidity in December in Fort Lyon?
What is the driest month in Fort Lyon?
How much does it rain in Fort Lyon in December?
How many days does it snow in December in Fort Lyon?
What is the month with the shortest days in Fort Lyon?
What is the average length of the day in December in Fort Lyon?
When are sunrise and sunset in December in Fort Lyon?
How long on average sun shines in December in Fort Lyon?
What are the months with the lowest UV index in Fort Lyon?
What is the UV index reading in December in Fort Lyon?
Average temperature in December
Fort Lyon, CO
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).
Average pressure in December
Fort Lyon, CO
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Fort Lyon, CO
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is January (8.2mph).
Average humidity in December
Fort Lyon, CO
- Average humidity in December: 57%
The month with the highest relative humidity is January (58%).
The month with the lowest relative humidity is June (38%).
Average rainfall in December
Fort Lyon, CO
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is July (1.81").
The driest months (with the least rainfall) are January, November and December (0.35").
Average rainfall days in December
Fort Lyon, CO
- Average rainfall days in December: 3.6 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in December
Fort Lyon, CO
- Average snowfall in December: 1.46"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Fort Lyon, CO
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Fort Lyon, CO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in December
Fort Lyon, CO
- Average sunshine days in December: 24.4 days
The month with the most sunshine days is November (24.5 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in December
Fort Lyon, CO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in December
Fort Lyon, CO
- Average cloud cover in December: 23
The months with the most cloud cover are February and April (Cloud cover 25).
The months with the least cloud cover are June and September (Cloud cover 14).
Average visibility in December
Fort Lyon, CO
- 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).
Fort Lyon, Colorado, USA
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