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 suggests a modest reduction in the average high-temperature, shifting from a cool 50°F (10°C) in November to a cold 39.2°F (4°C). In December, Harmony experiences a temperature dip to an average of 28.4°F (-2°C) at night.Humidity
The average relative humidity in December is 81%.Rainfall
In Harmony, in December, during 9.4 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Harmony, during the entire year, the rain falls for 151.2 days and collects up to 22.87" (581mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. December is the month with the most snowfall. Snow falls for 6.6 days and accumulates 1.81" (46mm) of snow.Daylight
December has the shortest days of the year in Harmony, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:50 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 5:34 pm EST.
Sunshine
In December, the average sunshine is 4.3h.UV index
The months with the lowest UV index in Harmony are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Harmony have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Harmony, IN
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 28.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Harmony, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Harmony, IN
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in December
Harmony, IN
- Average humidity in December: 81%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Harmony, IN
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in December
Harmony, IN
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in December
Harmony, IN
- Average snowfall in December: 1.81"
The month with the highest snowfall is December (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Harmony, IN
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harmony, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Harmony, IN
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in December
Harmony, IN
- 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
Harmony, IN
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Harmony, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Harmony, Indiana, USA
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