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 coincides with a reduction in the average high-temperature, falling from a cold 42.6°F (5.9°C) in November to a freezing cold 28.9°F (-1.7°C). The nights of December anticipate an average low-temperature of 18.7°F (-7.4°C).Humidity
In December, the average relative humidity is 85%.Rainfall
In December, the rain falls for 5.4 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 131 rainfall days, and 27.91" (709mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Gunder, it is snowing for 11.9 days. Throughout December, 4.06" (103mm) of snow is accumulated. In Gunder, during the entire year, snow falls for 52.3 days and aggregates up to 21.26" (540mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:32 pm. On the last day of December, in Gunder, sunrise is at 7:37 am and sunset at 4:41 pm CST.
Sunshine
In December, the average sunshine is 4h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much 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?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Gunder, IA
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in December: 18.7°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Gunder, IA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Gunder, IA
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Gunder, IA
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Gunder, IA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Gunder, IA
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Gunder, IA
- Average snowfall in December: 4.06"
The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Gunder, IA
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gunder, 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 0min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Gunder, IA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in December
Gunder, IA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Gunder, IA
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Gunder, IA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Gunder, Iowa, USA
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