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
A shift in the average high-temperature occurs in December, reducing from a frosty 45.1°F (7.3°C) in November to a wintry 32.5°F (0.3°C). In Garwin, December's nights observe an average temperature dip to a subzero cold 21.4°F (-5.9°C).Humidity
In Garwin, Iowa, the average relative humidity in December is 81%.Rainfall
In Garwin, in December, during 5.9 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Garwin, during the entire year, the rain falls for 133.1 days and collects up to 27.76" (705mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Garwin, Iowa, during December, snow falls for 8.1 days and regularly aggregates up to 2.24" (57mm) of snow. In Garwin, during the entire year, snow falls for 38.6 days and aggregates up to 14.29" (363mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of December, in Garwin, Iowa, sunrise is at 7:38 am and sunset at 4:49 pm CST.
Sunshine
The average sunshine in December in Garwin is 4.3h.UV index
The months with the lowest UV index in Garwin are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Garwin in December?
What is the average humidity in December in Garwin?
How much does it rain in Garwin in December?
How many days does it snow in December in Garwin?
What is the month with the shortest days in Garwin?
How many hours of daylight does Garwin have in December?
What time are sunrise and sunset in December in Garwin?
How long on average sun shines in December in Garwin?
What are the months with the lowest UV index in Garwin?
What is the UV index reading in December in Garwin?
Average temperature in December
Garwin, IA
- Average high temperature in December: 32.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 21.4°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in December
Garwin, 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
Garwin, 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
Garwin, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Garwin, IA
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Garwin, IA
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in December
Garwin, IA
- Average snowfall in December: 2.24"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Garwin, IA
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Garwin, 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 12min).
- Average sunshine in December: 4h and 2min
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 54min).
Average sunshine days in December
Garwin, IA
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Garwin, 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
Garwin, IA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in December
Garwin, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Garwin, Iowa, USA
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