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 move into December indicates a reduction in the average high-temperature, down from November's refreshing 59.5°F (15.3°C) to a frosty 48.6°F (9.2°C). Throughout December, the nighttime temperature averages to a cold 33.3°F (0.7°C).Humidity
In Merrick, the average relative humidity in December is 66%.Rainfall
The month with the least rainfall is December, when the rain falls for 4.8 days and typically collects 0.47" (12mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Merrick, during December, snow falls for 1.1 days and regularly aggregates up to 0.28" (7mm) of snow. In Merrick, during the entire year, snow falls for 6.1 days and aggregates up to 1.65" (42mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:20 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:25 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 6h of sunshine.UV index
December is the month with the lowest UV index, 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 radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Merrick in December?
What is the average humidity in December?
What is the driest month?
How many days does it rain in December?
How many days does it snow in December in Merrick?
What is the month with the shortest days?
How many hours of daylight does Merrick have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Merrick have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Merrick, OK
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (47.7°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in December
Merrick, OK
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Merrick, OK
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in December
Merrick, OK
- Average humidity in December: 66%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Merrick, OK
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in December
Merrick, OK
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in December
Merrick, OK
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Merrick, OK
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.6 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
Merrick, OK
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Merrick, OK
- Average sunshine days in December: 24.6 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is May (15.2 days).
Average UV index in December
Merrick, OK
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Merrick, OK
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Merrick, OK
- 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).
Merrick, Oklahoma, USA
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