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
In December, the average high-temperature decreases from a frosty 47.5°F (8.6°C) in November to a wintry 34.7°F (1.5°C). December brings with it a nighttime average temperature of 22.8°F (-5.1°C).Humidity
In December, the average relative humidity is 78%.Rainfall
The month with the least rainfall is December, when the rain falls for 4.7 days and typically collects 0.55" (14mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Martensdale, in December, during 5.7 snowfall days, 0.94" (24mm) of snow is typically accumulated. In Martensdale, during the entire year, snow falls for 31.9 days and aggregates up to 10.12" (257mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December in Martensdale, sunrise is at 7:22 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:55 pm CST.
Sunshine
In Martensdale, Iowa, the average sunshine in December is 4.8h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 2 in December translates into these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Avoiding the Sun during its peak radiation time around midday is a healthy practice. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Martensdale in December?
What is the average humidity in December in Martensdale?
What is the driest month in Martensdale?
How many days does it rain in December in Martensdale?
How many days does it snow in December in Martensdale?
What is the month with the shortest days in Martensdale?
How many hours of daylight does Martensdale have in December?
What time are sunrise and sunset in December in Martensdale?
How many hours of sunshine does Martensdale have in December?
How high is the UV index in December in Martensdale?
Average temperature in December
Martensdale, IA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Martensdale, 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
Martensdale, IA
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in December
Martensdale, IA
- Average humidity in December: 78%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Martensdale, IA
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (0.55").
Average rainfall days in December
Martensdale, IA
- Average rainfall days in December: 4.7 days
The months with the highest number of rainy days are May and June (15.9 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in December
Martensdale, IA
- Average snowfall in December: 0.94"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Martensdale, IA
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Martensdale, IA
- Average daylight in December: 9h and 1min
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 12min).
- 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 18min).
Average sunshine days in December
Martensdale, IA
- Average sunshine days in December: 21.9 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Martensdale, 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
Martensdale, IA
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Martensdale, 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).
Martensdale, Iowa, USA
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