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 coldest month is December, with an average high-temperature of 39.4°F (4.1°C) and an average low-temperature of 20.7°F (-6.3°C).Humidity
In December, the average relative humidity in Lafayette is 62%.Rainfall
In Lafayette, Colorado, during December, the rain falls for 5 days and regularly aggregates up to 0.2" (5mm) of precipitation. Throughout the year, there are 96.7 rainfall days, and 5.63" (143mm) of precipitation is accumulated.Snowfall
Months with snowfall in Lafayette are January through May, October through December. In December, it is snowing for 5.6 days. Throughout December, 1.34" (34mm) of snow is accumulated. In Lafayette, during the entire year, snow falls for 36.7 days and aggregates up to 13.98" (355mm) of snow.Daylight
December has the shortest days of the year in Lafayette, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:45 pm MST.
Sunshine
In Lafayette, the average sunshine in December is 7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lafayette. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In December, the UV index of 2 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. It's recommended to limit sun exposure when its radiation is at its peak during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Lafayette?
How cold does it get in Lafayette in December?
What is the average humidity in December in Lafayette?
How much does it rain in Lafayette in December?
How many days does it snow in December in Lafayette?
What is the month with the shortest days in Lafayette?
What is the average length of the day in December in Lafayette?
What time are sunrise and sunset in December in Lafayette?
How long on average sun shines in December in Lafayette?
What is the month with the lowest UV index in Lafayette?
What is the UV index reading in December in Lafayette?
Average temperature in December
Lafayette, CO
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).
Average pressure in December
Lafayette, CO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in December
Lafayette, CO
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).
Average humidity in December
Lafayette, CO
- Average humidity in December: 62%
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Lafayette, CO
- Average rainfall in December: 0.2"
The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").
Average rainfall days in December
Lafayette, CO
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in December
Lafayette, CO
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lafayette, CO
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lafayette, CO
- Average daylight in December: 9h and 2min
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: 7h and 0min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in December
Lafayette, CO
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Lafayette, CO
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Lafayette, CO
- Average cloud cover in December: 22
The months with the most cloud cover are April and May (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in December
Lafayette, 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).
Lafayette, Colorado, USA
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