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
The beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 47.3°F (8.5°C) in November to a wintry 34.3°F (1.3°C). An average low-temperature of 22.5°F (-5.3°C) is expected in Truro during December.Humidity
In Truro, the average relative humidity in December is 78%.Rainfall
In December, in Truro, the rain falls for 5.9 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. In Truro, Iowa, during the entire year, the rain falls for 133 days and collects up to 26.14" (664mm) of precipitation.Snowfall
Months with snowfall in Truro are January through May, October through December. In Truro, in December, snow falls for 7.5 days, with typically accumulated 1.97" (50mm) of snow. Throughout the year, in Truro, Iowa, there are 35 snowfall days, and 15.04" (382mm) of snow is accumulated.Daylight
December has the shortest days of the year in Truro, Iowa, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:22 am and sunset at 4:47 pm. On the last day of December, in Truro, sunrise is at 7:40 am and sunset at 4:56 pm CST.
Sunshine
The average sunshine in December is 4.8h.UV index
The months with the lowest UV index in Truro 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 hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Truro?
What is the average humidity in December in Truro?
How many days does it rain in December in Truro?
How many days does it snow in December in Truro?
What is the month with the shortest days in Truro?
What is the average length of the day in December in Truro?
When is the sunrise / sunset in December in Truro?
How long on average sun shines in December in Truro?
When is the lowest UV index in Truro?
What is the UV index reading in December in Truro?
Average temperature in December
Truro, IA
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 22.5°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Truro, 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
Truro, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Truro, IA
- Average humidity in December: 78%
The months with the highest relative humidity are January, February and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Truro, IA
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in December
Truro, IA
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is June (17.9 days).
The months with the least rainy days are January and February (3.8 days).
Average snowfall in December
Truro, IA
- Average snowfall in December: 1.97"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Truro, IA
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Truro, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Truro, IA
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Truro, 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, October, November and December (UV index 2).
Average cloud cover in December
Truro, IA
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in December
Truro, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Truro, Iowa, USA
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