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 transition into December indicates a reduction in the average high-temperature, down to a cold 38.7°F (3.7°C) from November's fresh 50.4°F (10.2°C). Nighttime temperatures consistently average a subzero cold 26.1°F (-3.3°C) during December.Humidity
In December, the average relative humidity in Lewistown is 78%.Rainfall
In Lewistown, in December, during 5.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Lewistown, during the entire year, the rain falls for 130.9 days and collects up to 26.3" (668mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Lewistown, during December, snow falls for 3.9 days and regularly aggregates up to 1.54" (39mm) of snow. In Lewistown, during the entire year, snow falls for 21.2 days and aggregates up to 9.29" (236mm) of snow.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 7:10 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:51 pm CST.
Sunshine
The average sunshine in December in Lewistown is 4.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold does it get in Lewistown in December?
What is the average humidity in December in Lewistown?
How many days does it rain in December in Lewistown?
How much does it snow in Lewistown in December?
What is the month with the shortest days in Lewistown?
How many hours of daylight does Lewistown have in December?
What time are sunrise and sunset in December in Lewistown?
How long on average sun shines in December in Lewistown?
What are the months with the lowest UV index in Lewistown?
How high is the UV index in December in Lewistown?
Average temperature in December
Lewistown, MO
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Lewistown, MO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Lewistown, MO
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in December
Lewistown, MO
- Average humidity in December: 78%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Lewistown, MO
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in December
Lewistown, MO
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in December
Lewistown, MO
- Average snowfall in December: 1.54"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Lewistown, MO
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is January (6.8 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
Lewistown, MO
- 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: 4h and 5min
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 18min).
Average sunshine days in December
Lewistown, MO
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is June (12 days).
Average UV index in December
Lewistown, 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
Lewistown, MO
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Lewistown, 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).
Lewistown, Missouri, USA
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