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
With December's arrival, Webster City sees a decrease in average high-temperatures, moving from a chilly 44.8°F (7.1°C) in November to a subzero cold 30.6°F (-0.8°C). Throughout the month of December, Webster City reports a steady low-temperature average of 19.9°F (-6.7°C).Humidity
In December, the average relative humidity in Webster City, Iowa, is 82%.Rainfall
In Webster City, during December, the rain falls for 4.9 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Webster City, during the entire year, the rain falls for 135.2 days and collects up to 26.5" (673mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Webster City, it is snowing for 9.7 days. Throughout December, 3.35" (85mm) of snow is accumulated. In Webster City, during the entire year, snow falls for 41.8 days and aggregates up to 16.61" (422mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December in Webster City, sunrise is at 7:25 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:52 pm CST.
Sunshine
In Webster City, the average sunshine in December is 4.5h.UV index
The average daily maximum UV index in December in Webster City is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Webster City in December?
What is the average humidity in December in Webster City?
How much does it rain in Webster City in December?
How much does it snow in Webster City in December?
What is the month with the shortest days in Webster City?
What is the average length of the day in December in Webster City?
When is the sunrise / sunset in December in Webster City?
How long on average sun shines in December in Webster City?
What is the UV index intensity in December in Webster City?
Average temperature in December
Webster City, IA
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 19.9°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Webster City, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Webster City, IA
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in December
Webster City, IA
- Average humidity in December: 82%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Webster City, IA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Webster City, IA
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Webster City, IA
- Average snowfall in December: 3.35"
The month with the highest snowfall is February (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Webster City, IA
- Average snowfall days in December: 9.7 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Webster City, 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 6min).
- 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: 3h and 48min).
Average sunshine days in December
Webster City, IA
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Webster City, 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
Webster City, IA
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in December
Webster City, 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).
Webster City, Iowa, USA
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