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
Blackwell observes a minor decrease in the average high-temperature with the arrival of December, falling from November's fresh 53.4°F (11.9°C) to a chilly 43.3°F (6.3°C). Blackwell experiences a mean low-temperature of 30.2°F (-1°C) during December.Humidity
In December, the average relative humidity in Blackwell is 77%.Rainfall
In Blackwell, in December, it is raining for 7.4 days, with typically 2.17" (55mm) of accumulated precipitation. In Blackwell, during the entire year, the rain falls for 142.5 days and collects up to 28.58" (726mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Blackwell. In Blackwell, in December, during 3.6 snowfall days, 1.85" (47mm) of snow is typically accumulated. In Blackwell, during the entire year, snow falls for 17.5 days and aggregates up to 8.74" (222mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:53 pm CST.
Sunshine
In December, the average sunshine is 4.9h.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 reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the UV index of 2 transforms into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December in Blackwell?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Blackwell have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index in Blackwell?
What is the UV index intensity in December?
Average temperature in December
Blackwell, MO
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Blackwell, MO
- 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 (29.92"Hg).
Average wind speed in December
Blackwell, MO
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Blackwell, MO
- Average humidity in December: 77%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Blackwell, MO
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is May (3.03").
The driest months (with the least rainfall) are February, September and November (1.73").
Average rainfall days in December
Blackwell, MO
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Blackwell, MO
- Average snowfall in December: 1.85"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Blackwell, MO
- Average snowfall days in December: 3.6 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blackwell, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Blackwell, MO
- Average sunshine days in December: 19.9 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in December
Blackwell, 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
Blackwell, MO
- Average cloud cover in December: 48
The months with the most cloud cover are January, February and March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Blackwell, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
Blackwell, Missouri, USA
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