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 ushers in a slight temperature change, with average high-temperatures reducing from November's fresh 50.9°F (10.5°C) to an icy 40.8°F (4.9°C). In Harriett, the expected average low-temperature for December is a subzero cold 30°F (-1.1°C).Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 82%.Rainfall
In Harriett, in December, it is raining for 12.1 days, with typically 3.03" (77mm) of accumulated precipitation. In Harriett, during the entire year, the rain falls for 174 days and collects up to 34.72" (882mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Harriett, in December, snow falls for 9.3 days, with typically accumulated 2.99" (76mm) of snow. In Harriett, during the entire year, snow falls for 40.1 days and aggregates up to 15.04" (382mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December in Harriett, sunrise is at 7:34 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:21 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The month with the lowest UV index in Harriett is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 1 in December translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is December in Harriett?
What are the most humid months in Harriett?
What is the average humidity in December in Harriett?
How many days does it rain in December in Harriett?
How many days does it snow in December in Harriett?
What is the month with the shortest days in Harriett?
How many hours of daylight does Harriett have in December?
What time are sunrise and sunset in December in Harriett?
How many hours of sunshine does Harriett have in December?
What is the month with the lowest UV index in Harriett?
What is the UV index intensity in December in Harriett?
Average temperature in December
Harriett, OH
- Average high temperature in December: 40.8°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 (35.2°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Harriett, OH
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Harriett, OH
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Harriett, OH
- Average humidity in December: 82%
The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Harriett, OH
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Harriett, OH
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in December
Harriett, OH
- Average snowfall in December: 2.99"
The month with the highest snowfall is February (4.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Harriett, OH
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harriett, OH
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Harriett, OH
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (8.9 days).
Average UV index in December
Harriett, OH
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Harriett, OH
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Harriett, OH
- Average visibility in December: 6mi
The months with the highest visibility are March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are January, February, May, July and September (5mi).
Harriett, Ohio, USA
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