December weather forecastSaint Ansgar, IA
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Saint Ansgar, Iowa, with temperature in the range of an average low of 17.4°F (-8.1°C) and an average high of 27.5°F (-2.5°C).Temperature
With December's arrival, Saint Ansgar's weather changes as the average high-temperature falls from a cold 41.5°F (5.3°C) in November to a subzero cold 27.5°F (-2.5°C). Saint Ansgar experiences an average low-temperature of 17.4°F (-8.1°C) in month of December.Humidity
In Saint Ansgar, the average relative humidity in December is 87%.Rainfall
In Saint Ansgar, in December, it is raining for 5.4 days, with typically 1.5" (38mm) of accumulated precipitation. In Saint Ansgar, during the entire year, the rain falls for 135.3 days and collects up to 26.54" (674mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Saint Ansgar, during December, snow falls for 11.9 days and regularly aggregates up to 3.86" (98mm) of snow. In Saint Ansgar, during the entire year, snow falls for 50.9 days and aggregates up to 22.83" (580mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:44 am and sunset at 4:45 pm CST.
Sunshine
In Saint Ansgar, the average sunshine in December is 4h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saint Ansgar, IA
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in December: 17.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in December
Saint Ansgar, IA
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Saint Ansgar, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in December
Saint Ansgar, IA
- Average humidity in December: 87%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Saint Ansgar, IA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Saint Ansgar, IA
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is February (3 days).
Average snowfall in December
Saint Ansgar, IA
- Average snowfall in December: 3.86"
The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Ansgar, IA
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is December (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
Saint Ansgar, IA
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Saint Ansgar, IA
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.5 days).
Average UV index in December
Saint Ansgar, IA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Saint Ansgar, IA
- Average cloud cover in December: 61
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
Saint Ansgar, 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).
