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
Transition into December marks a drop in the average high-temperature, moving from a frosty 46.8°F (8.2°C) in November to a cold 33.8°F (1°C). Throughout the month of December, Gibson observes an average nighttime temperature of 22.3°F (-5.4°C).Humidity
The average relative humidity in December is 80%.Rainfall
In Gibson, in December, it is raining for 5.5 days, with typically 0.67" (17mm) of accumulated precipitation. In Gibson, during the entire year, the rain falls for 117.7 days and collects up to 15.12" (384mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Gibson, in December, during 7.5 snowfall days, 0.94" (24mm) of snow is typically accumulated. In Gibson, during the entire year, snow falls for 34.7 days and aggregates up to 6.54" (166mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:49 pm CST.
Sunshine
In December, the average sunshine is 4.6h.UV index
In Gibson, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average UV index of 2 in December transforms into this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the UV index intensity in December?
Average temperature in December
Gibson, IA
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in December: 22.3°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 (14.5°F).
Average pressure in December
Gibson, 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
Gibson, IA
- Average wind speed in December: 10.1mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Gibson, IA
- Average humidity in December: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Gibson, IA
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in December
Gibson, IA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Gibson, IA
- Average snowfall in December: 0.94"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Gibson, IA
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gibson, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 4min
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
Gibson, IA
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in December
Gibson, 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
Gibson, 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 September (Cloud cover 30).
Average visibility in December
Gibson, 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).
Gibson, Iowa, USA
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