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 onset of December introduces a moderate change in Grandview's weather, with average high-temperatures falling from November's cool 52.7°F (11.5°C) to an icy 41.2°F (5.1°C). During the nights in December, the temperature in Grandview, Missouri, averages to a subzero cold 28°F (-2.2°C).Humidity
In December, the average relative humidity in Grandview, Missouri, is 74%.Rainfall
In December, in Grandview, Missouri, the rain falls for 5.4 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. In Grandview, Missouri, during the entire year, the rain falls for 133.9 days and collects up to 28.54" (725mm) of precipitation.Snowfall
Months with snowfall in Grandview, Missouri, are January through May, October through December. In Grandview, Missouri, in December, during 3.1 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Grandview, during the entire year, snow falls for 18 days and aggregates up to 9.57" (243mm) of snow.Daylight
The month with the shortest days in Grandview is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:06 pm CST.
Sunshine
In December, the average sunshine is 5.4h.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 low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Grandview?
What is the average humidity in December in Grandview?
How much does it rain in Grandview in December?
How much does it snow in Grandview in December?
What is the month with the shortest days in Grandview?
What is the average length of the day in December in Grandview?
What time are sunrise and sunset in December in Grandview?
How many hours of sunshine does Grandview have in December?
What are the months with the lowest UV index in Grandview?
How high is the UV index in December in Grandview?
Average temperature in December
Grandview, MO
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in December
Grandview, 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
Grandview, MO
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Grandview, MO
- Average humidity in December: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Grandview, MO
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Grandview, MO
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Grandview, MO
- Average snowfall in December: 1.02"
The month with the highest snowfall is February (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grandview, MO
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grandview, MO
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Grandview, MO
- Average sunshine days in December: 22.6 days
The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Grandview, MO
- Average UV index in December: 2
The months with the highest UV index are May, 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
Grandview, MO
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Grandview, 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).
Grandview, Missouri, USA
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