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 comes with a shift in the average high-temperature, falling from a frosty 46.2°F (7.9°C) in November to an icy 32.9°F (0.5°C). In Malcom, December nights cool down to an average of 22.1°F (-5.5°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Malcom, in December, it is raining for 7.2 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 135.6 rainfall days, and 27.48" (698mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Malcom, Iowa, in December, snow falls for 7.3 days, with typically accumulated 2.13" (54mm) of snow. Throughout the year, there are 35.5 snowfall days, and 13.98" (355mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Malcom.On the first day of the month, sunrise is at 7:18 am and sunset at 4:40 pm. On the last day of December, in Malcom, sunrise is at 7:37 am and sunset at 4:49 pm CST.
Sunshine
In Malcom, the average sunshine in December is 4.5h.UV index
In Malcom, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is December in Malcom?
What is the average humidity in December in Malcom?
How many days does it rain in December in Malcom?
How many days does it snow in December in Malcom?
What is the month with the shortest days in Malcom?
How many hours of daylight does Malcom have in December?
When is the sunrise / sunset in December in Malcom?
How long on average sun shines in December in Malcom?
What is the UV index intensity in December in Malcom?
Average temperature in December
Malcom, IA
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in December
Malcom, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Malcom, IA
- Average wind speed in December: 10.2mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Malcom, IA
- Average humidity in December: 81%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Malcom, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Malcom, IA
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Malcom, IA
- Average snowfall in December: 2.13"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Malcom, IA
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Malcom, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Malcom, IA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in December
Malcom, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Malcom, IA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in December
Malcom, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Malcom, Iowa, USA
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