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
Merom in December undergoes a mild reduction in the average high-temperature, shifting from November's fresh 51.4°F (10.8°C) to a wintry 41.2°F (5.1°C). Merom, during December nights, observes an average temperature of 29.8°F (-1.2°C).Humidity
The average relative humidity in December is 80%.Rainfall
In Merom, in December, during 10.1 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, there are 162.4 rainfall days, and 36.85" (936mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Merom, in December, during 4.7 snowfall days, 1.85" (47mm) of snow is typically accumulated. Throughout the year, there are 22 snowfall days, and 7.64" (194mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:50 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 5:38 pm EST.
Sunshine
In Merom, the average sunshine in December is 4.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. 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. Be cautious! The UV radiation from the Sun can be magnified almost twofold 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 many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Merom?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Merom have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Merom, IN
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Merom, IN
- Average pressure in December: 30.13"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
Merom, IN
- Average wind speed in December: 9.1mph
The windiest months (with the highest average wind speed) are January and February (10mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in December
Merom, IN
- Average humidity in December: 80%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Merom, IN
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is April (5.2").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Merom, IN
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Merom, IN
- Average snowfall in December: 1.85"
The month with the highest snowfall is January (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Merom, IN
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (6.8 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
Merom, IN
- 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 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 12min).
Average sunshine days in December
Merom, IN
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in December
Merom, 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
Merom, IN
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Merom, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Merom, Indiana, USA
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