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
Onset of December witnesses a reduction in the average high-temperature, falling from a frosty 49.1°F (9.5°C) in November to a wintry 35.2°F (1.8°C). Throughout December, an average nighttime temperature of 22.8°F (-5.1°C) is experienced.Humidity
In Henshaw, the average relative humidity in December is 78%.Rainfall
In December, the rain falls for 4.3 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 114.9 rainfall days, and 18.39" (467mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Henshaw. In Henshaw, Iowa, in December, during 4.5 snowfall days, 0.91" (23mm) of snow is typically accumulated. In Henshaw, during the entire year, snow falls for 25.2 days and aggregates up to 7.4" (188mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:25 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:02 pm CST.
Sunshine
In Henshaw, the average sunshine in December is 5h.UV index
The months with the lowest UV index in Henshaw are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold is December in Henshaw?
What is the average humidity in December in Henshaw?
How many days does it rain in December in Henshaw?
How much does it snow in Henshaw in December?
What is the month with the shortest days in Henshaw?
How many hours of daylight does Henshaw have in December?
When are sunrise and sunset in December in Henshaw?
How long on average sun shines in December in Henshaw?
What is the month with the lowest UV index in Henshaw?
What is the UV index intensity in December in Henshaw?
Average temperature in December
Henshaw, IA
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in December
Henshaw, IA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Henshaw, IA
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Henshaw, IA
- Average humidity in December: 78%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Henshaw, IA
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in December
Henshaw, IA
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in December
Henshaw, IA
- Average snowfall in December: 0.91"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Henshaw, IA
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Henshaw, 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: 5h and 0min
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 36min).
Average sunshine days in December
Henshaw, IA
- Average sunshine days in December: 22 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Henshaw, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Henshaw, IA
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Henshaw, 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).
Henshaw, Iowa, USA
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