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
As November transitions into December, Lamar sees a drop in the average high-temperature, transitioning from a mild 60.1°F (15.6°C) to a frosty 49.8°F (9.9°C). Lamar's average low-temperature in the month of December is recorded at a cold 35.4°F (1.9°C).Humidity
In Lamar, the average relative humidity in December is 70%.Rainfall
In Lamar, Oklahoma, during December, the rain falls for 7.5 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 133 rainfall days, and 29.72" (755mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Lamar, Oklahoma, during December, snow falls for 1.1 days and regularly aggregates up to 0.51" (13mm) of snow. Throughout the year, there are 6.1 snowfall days, and 3.46" (88mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:23 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.7h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December in Lamar?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Lamar, OK
- Average high temperature in December: 49.8°F
The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in December
Lamar, OK
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Lamar, OK
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in December
Lamar, OK
- Average humidity in December: 70%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Lamar, OK
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in December
Lamar, OK
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
Lamar, OK
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lamar, OK
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.5 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
Lamar, OK
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Lamar, OK
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (13.6 days).
Average UV index in December
Lamar, OK
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Lamar, OK
- Average cloud cover in December: 35
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Lamar, OK
- 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).
Lamar, Oklahoma, USA
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