December weather forecastLawson, MO
December
Weather in December
December, the first month of the winter in Lawson, is also a wintry month, with temperature in the range of an average high of 39°F (3.9°C) and an average low of 26.6°F (-3°C).Temperature
In Lawson, the average high-temperature in December drops from a fresh 51.1°F (10.6°C) in November to an icy 39°F (3.9°C). During the nights in December, the temperature averages to a freezing cold 26.6°F (-3°C).Humidity
The average relative humidity in December is 76%.Rainfall
In December, the rain falls for 6.1 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Lawson, there are 133.9 rainfall days, and 27.64" (702mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Lawson, Missouri, in December, during 3.9 snowfall days, 1.02" (26mm) of snow is typically accumulated. Throughout the year, there are 21.6 snowfall days, and 9.21" (234mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:53 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:03 pm CST.
Sunshine
In Lawson, the average sunshine in December is 5.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lawson, MO
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Lawson, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Lawson, MO
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Lawson, MO
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in December
Lawson, MO
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in December
Lawson, MO
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Lawson, MO
- Average snowfall in December: 1.02"
The month with the highest snowfall is January (2.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lawson, MO
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lawson, MO
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Lawson, MO
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Lawson, MO
- Average UV index in December: 2
The months with the highest UV index are June, 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
Lawson, MO
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Lawson, MO
- 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).





