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 brings a decrease in the average high-temperature, falling from November's chilly 49.8°F (9.9°C) to a wintry 39°F (3.9°C). Hillsdale usually reports an average low-temperature of 28.4°F (-2°C) during the month of December.Humidity
In December, the average relative humidity in Hillsdale is 81%.Rainfall
In December, in Hillsdale, the rain falls for 8.1 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 146.1 rainfall days, and 21.02" (534mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. The month with the most snowfall in Hillsdale, Indiana, is December, when snow falls for 7 days and typically aggregates up to 1.69" (43mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:52 am and sunset at 5:25 pm. On the last day of December, sunrise is at 8:10 am and sunset at 5:35 pm EST.
Sunshine
The average sunshine in December is 4.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hillsdale. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
Is it cold in Hillsdale during December?
What is the average humidity in December in Hillsdale?
How many days does it rain in December in Hillsdale?
What is the snowiest month in Hillsdale?
How much does it snow in Hillsdale in December?
What is the month with the shortest days in Hillsdale?
What is the average length of the day in December in Hillsdale?
When are sunrise and sunset in December in Hillsdale?
How many hours of sunshine does Hillsdale have in December?
When is the lowest UV index in Hillsdale?
What is the UV index intensity in December in Hillsdale?
Average temperature in December
Hillsdale, IN
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (34.2°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 (21.6°F).
Average pressure in December
Hillsdale, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Hillsdale, IN
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Hillsdale, 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 (72%).
Average rainfall in December
Hillsdale, IN
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in December
Hillsdale, IN
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in December
Hillsdale, IN
- Average snowfall in December: 1.69"
The month with the highest snowfall is December (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hillsdale, IN
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Hillsdale, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Hillsdale, IN
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Hillsdale, 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
Hillsdale, IN
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).
Average visibility in December
Hillsdale, 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).
Hillsdale, Indiana, USA
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