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
A decrease in the average high-temperature marks December, falling from November's frosty 43.7°F (6.5°C) to a freezing cold 28.9°F (-1.7°C). The average low-temperature in Webb during December nights is 18.5°F (-7.5°C).Humidity
The average relative humidity in December is 83%.Rainfall
In December, in Webb, the rain falls for 4.5 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. Throughout the year, in Webb, Iowa, there are 127.3 rainfall days, and 23.58" (599mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 10.5 days. Throughout December, 2.72" (69mm) of snow is accumulated. Throughout the year, in Webb, Iowa, there are 46.1 snowfall days, and 19.06" (484mm) of snow is accumulated.Daylight
The month with the shortest days in Webb is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:32 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:55 pm CST.
Sunshine
In December, the average sunshine is 4.6h.UV index
In Webb, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Webb in December?
What is the average humidity in December in Webb?
How many days does it rain in December in Webb?
How much does it snow in Webb in December?
What is the month with the shortest days in Webb?
How many hours of daylight does Webb have in December?
What time are sunrise and sunset in December in Webb?
How many hours of sunshine does Webb have in December?
How high is the UV index in December in Webb?
Average temperature in December
Webb, IA
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Webb, IA
- 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 (29.88"Hg).
Average wind speed in December
Webb, IA
- Average wind speed in December: 10.6mph
The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Webb, IA
- Average humidity in December: 83%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in December
Webb, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in December
Webb, IA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Webb, IA
- Average snowfall in December: 2.72"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Webb, IA
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Webb, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 4min
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 6min).
Average sunshine days in December
Webb, IA
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in December
Webb, 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 February (UV index 1).
Average cloud cover in December
Webb, IA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Webb, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Webb, Iowa, USA
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