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 shift from November to December involves a decrease in the average high-temperature, dropping from a wintry 42.6°F (5.9°C) to a freezing cold 28.9°F (-1.7°C). The nights of December in Clermont anticipate an average low-temperature of 18.7°F (-7.4°C).Humidity
In December, the average relative humidity is 85%.Rainfall
In December, the rain falls for 5.4 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 131 rainfall days, and 27.91" (709mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Clermont. In Clermont, in December, during 11.9 snowfall days, 4.06" (103mm) of snow is typically accumulated. In Clermont, during the entire year, snow falls for 52.3 days and aggregates up to 21.26" (540mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:32 pm. On the last day of December, in Clermont, sunrise is at 7:37 am and sunset at 4:42 pm CST.
Sunshine
The average sunshine in December in Clermont, Iowa, is 4h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 1 during December translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Enhance your sun protection with tightly woven, yet airy clothing. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Clermont in December?
What is the average humidity in December in Clermont?
How much does it rain in Clermont in December?
How much does it snow in Clermont in December?
What is the month with the shortest days in Clermont?
How many hours of daylight does Clermont have in December?
When are sunrise and sunset in December in Clermont?
How long on average sun shines in December in Clermont?
What is the month with the lowest UV index in Clermont?
How high is the UV index in December in Clermont?
Average temperature in December
Clermont, IA
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in December: 18.7°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Clermont, IA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Clermont, IA
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Clermont, IA
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Clermont, IA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Clermont, IA
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Clermont, IA
- Average snowfall in December: 4.06"
The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Clermont, IA
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Clermont, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Clermont, IA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in December
Clermont, IA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Clermont, IA
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Clermont, IA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Clermont, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location
