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 decrease in the average high-temperature is observed during December, shifting from a frosty 48.6°F (9.2°C) in November to a wintry 35.6°F (2°C). Garden Grove records a consistent low-temperature of 23.4°F (-4.8°C) during December nights.Humidity
The average relative humidity in December in Garden Grove, Iowa, is 79%.Rainfall
The months with the least rainfall in Garden Grove are January and December Rain falls for 5.7 days and accumulates 0.67" (17mm) of rain.Snowfall
Months with snowfall in Garden Grove are January through May, October through December. In Garden Grove, in December, snow falls for 5.9 days, with typically accumulated 1.14" (29mm) of snow. In Garden Grove, during the entire year, snow falls for 30.2 days and aggregates up to 10.16" (258mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:20 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:56 pm CST.
Sunshine
In December, the average sunshine is 4.9h.UV index
In Garden Grove, Iowa, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
How cold is December in Garden Grove?
What is the average humidity in December in Garden Grove?
What is the driest month in Garden Grove?
How many days does it rain in December in Garden Grove?
How many days does it snow in December in Garden Grove?
What is the month with the shortest days in Garden Grove?
How many hours of daylight does Garden Grove have in December?
When is the sunrise / sunset in December in Garden Grove?
How long on average sun shines in December in Garden Grove?
What is the UV index intensity in December in Garden Grove?
Average temperature in December
Garden Grove, IA
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 23.4°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
Garden Grove, 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 (29.89"Hg).
Average wind speed in December
Garden Grove, IA
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in December
Garden Grove, IA
- Average humidity in December: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Garden Grove, IA
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January and December (0.67").
Average rainfall days in December
Garden Grove, IA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Garden Grove, IA
- Average snowfall in December: 1.14"
The month with the highest snowfall is January (2.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Garden Grove, IA
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Garden Grove, IA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Garden Grove, IA
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in December
Garden Grove, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Garden Grove, IA
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Garden Grove, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Garden Grove, Iowa, USA
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