December weather forecastSteamboat Rock, IA
December
Weather in December
December, the first month of the winter in Steamboat Rock, is also a subzero cold month, with an average temperature varying between 30.9°F (-0.6°C) and 20.1°F (-6.6°C).Temperature
Steamboat Rock's December weather shows a moderate shift in high-temperatures, falling from November's frosty 44.4°F (6.9°C) to a subzero cold 30.9°F (-0.6°C). An average low-temperature of 20.1°F (-6.6°C) is anticipated throughout the nights in Steamboat Rock during December.Humidity
In Steamboat Rock, the average relative humidity in December is 82%.Rainfall
In Steamboat Rock, in December, it is raining for 3 days, with typically 0.28" (7mm) of accumulated precipitation. In Steamboat Rock, during the entire year, the rain falls for 83.5 days and collects up to 6.5" (165mm) of precipitation.Snowfall
Months with snowfall in Steamboat Rock are January through April, October through December. In Steamboat Rock, in December, snow falls for 4.9 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, in Steamboat Rock, there are 26.6 snowfall days, and 3.03" (77mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:22 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:41 am and sunset at 4:49 pm CST.
Sunshine
The average sunshine in December in Steamboat Rock, Iowa, is 4.4h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Steamboat Rock, IA
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in December: 20.1°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Steamboat Rock, 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
Steamboat Rock, IA
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Steamboat Rock, IA
- Average humidity in December: 82%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Steamboat Rock, IA
- Average rainfall in December: 0.28"
The wettest month (with the highest rainfall) is May (1.06").
The driest months (with the least rainfall) are January and February (0.24").
Average rainfall days in December
Steamboat Rock, IA
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is May (11.6 days).
The months with the least rainy days are January and February (2 days).
Average snowfall in December
Steamboat Rock, IA
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Steamboat Rock, IA
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Steamboat Rock, IA
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Steamboat Rock, IA
- Average sunshine days in December: 24.6 days
The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is June (15.8 days).
Average UV index in December
Steamboat Rock, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Steamboat Rock, IA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in December
Steamboat Rock, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
