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
As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 43.7°F (6.5°C) to a freezing cold 31.3°F (-0.4°C). In December, the recorded average low-temperature is a still subzero cold 20.7°F (-6.3°C).Humidity
In Farley, the average relative humidity in December is 83%.Rainfall
In Farley, in December, it is raining for 7.5 days, with typically 1.69" (43mm) of accumulated precipitation. In Farley, during the entire year, the rain falls for 150.8 days and collects up to 32.4" (823mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, in Farley, it is snowing for 11.3 days. Throughout December, 4.37" (111mm) of snow is accumulated. In Farley, during the entire year, snow falls for 53.4 days and aggregates up to 22.4" (569mm) of snow.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 7:14 am and sunset at 4:32 pm. On the last day of December, in Farley, sunrise is at 7:33 am and sunset at 4:41 pm CST.
Sunshine
The average sunshine in December in Farley 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 value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Farley?
What is the average humidity in December in Farley?
How many days does it rain in December in Farley?
How many days does it snow in December in Farley?
What is the month with the shortest days in Farley?
What is the average length of the day in December in Farley?
What time are sunrise and sunset in December in Farley?
How long on average sun shines in December in Farley?
When is the lowest UV index in Farley?
How high is the UV index in December in Farley?
Average temperature in December
Farley, IA
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Farley, 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 (29.9"Hg).
Average wind speed in December
Farley, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Farley, IA
- Average humidity in December: 83%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in December
Farley, IA
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Farley, IA
- Average rainfall days in December: 7.5 days
The months with the highest number of rainy days are May and June (19.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Farley, IA
- Average snowfall in December: 4.37"
The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Farley, IA
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Farley, IA
- Average daylight in December: 9h and 1min
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 0min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Farley, IA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in December
Farley, IA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Farley, IA
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in December
Farley, 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).
Farley, Iowa, USA
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