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
In December, the average high-temperature decreases considerably from a chilly 43.2°F (6.2°C) in November to a freezing cold 28°F (-2.2°C). Graettinger experiences a steady low-temperature of 17.4°F (-8.1°C) throughout December.Humidity
In December, the average relative humidity in Graettinger is 84%.Rainfall
In Graettinger, in December, it is raining for 4.4 days, with typically 1.5" (38mm) of accumulated precipitation. In Graettinger, during the entire year, the rain falls for 138 days and collects up to 26.77" (680mm) of precipitation.Snowfall
Months with snowfall in Graettinger are January through May, October through December. In Graettinger, in December, snow falls for 11.9 days, with typically accumulated 3.74" (95mm) of snow. In Graettinger, Iowa, during the entire year, snow falls for 51.6 days and aggregates up to 23.03" (585mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Graettinger.On the first day of December, sunrise is at 7:31 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:53 pm CST.
Sunshine
In December, the average sunshine in Graettinger is 4.4h.UV index
In December, the average daily maximum UV index in Graettinger is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is December in Graettinger?
What is the average humidity in December in Graettinger?
How much does it rain in Graettinger in December?
How many days does it snow in December in Graettinger?
What is the month with the shortest days in Graettinger?
What is the average length of the day in December in Graettinger?
When is the sunrise / sunset in December in Graettinger?
How long on average sun shines in December in Graettinger?
How high is the UV index in December in Graettinger?
Average temperature in December
Graettinger, IA
- Average high temperature in December: 28°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 (23.2°F).
- Average low temperature in December: 17.4°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in December
Graettinger, 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
Graettinger, IA
- Average wind speed in December: 10.6mph
The windiest months (with the highest average wind speed) are January and April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Graettinger, IA
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Graettinger, IA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Graettinger, IA
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is June (20 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in December
Graettinger, IA
- Average snowfall in December: 3.74"
The month with the highest snowfall is February (5.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Graettinger, IA
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Graettinger, IA
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 4h and 2min
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
Graettinger, IA
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in December
Graettinger, IA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Graettinger, IA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in December
Graettinger, 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).
Graettinger, Iowa, USA
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