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
December's arrival corresponds with a decrease in average high-temperatures, from November's chilly 45.5°F (7.5°C) to an icy 32°F (0°C). December nights are marked by an average temperature drop to a subzero cold 21°F (-6.1°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In December, the rain falls for 4.8 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. In Harcourt, during the entire year, the rain falls for 126.1 days and collects up to 26.85" (682mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Harcourt. In December, it is snowing for 8 days. Throughout December, 2.32" (59mm) of snow is accumulated. In Harcourt, during the entire year, snow falls for 37.8 days and aggregates up to 15.39" (391mm) 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 December, sunrise is at 7:26 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:54 pm CST.
Sunshine
In Harcourt, the average sunshine in December is 4.6h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Harcourt. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Harcourt in December?
What is the average humidity in December in Harcourt?
How much does it rain in Harcourt in December?
How much does it snow in Harcourt in December?
What is the month with the shortest days in Harcourt?
How many hours of daylight does Harcourt have in December?
When are sunrise and sunset in December in Harcourt?
How many hours of sunshine does Harcourt have in December?
What are the months with the lowest UV index in Harcourt?
What is the UV index reading in December in Harcourt?
Average temperature in December
Harcourt, IA
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in December: 21°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
Harcourt, 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 (29.88"Hg).
Average wind speed in December
Harcourt, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in December
Harcourt, IA
- Average humidity in December: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Harcourt, IA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in December
Harcourt, IA
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Harcourt, IA
- Average snowfall in December: 2.32"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Harcourt, IA
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harcourt, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Harcourt, IA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in December
Harcourt, 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
Harcourt, IA
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in December
Harcourt, 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).
Harcourt, Iowa, USA
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