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 moderate 59.9°F (15.5°C) in November to a frosty 49.5°F (9.7°C). During December nights, Johnson records an average temperature of 34.7°F (1.5°C).Humidity
The average relative humidity in December is 67%.Rainfall
In Johnson, in December, during 6.3 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Johnson, during the entire year, the rain falls for 123.4 days and collects up to 25.87" (657mm) of precipitation.Snowfall
Months with snowfall in Johnson are January through April, November and December. In Johnson, during December, snow falls for 1.4 days and regularly aggregates up to 0.67" (17mm) of snow. In Johnson, during the entire year, snow falls for 6.5 days and aggregates up to 3.66" (93mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:18 am and sunset at 5:14 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:25 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.9h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index in Johnson. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 2 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the temperature in December in Johnson?
What is the average humidity in December in Johnson?
How many days does it rain in December in Johnson?
How many days does it snow in December in Johnson?
What is the month with the shortest days in Johnson?
How many hours of daylight does Johnson have in December?
When is the sunrise / sunset in December in Johnson?
What is the month with the least sunshine in Johnson?
How long on average sun shines in December in Johnson?
What is the month with the lowest UV index in Johnson?
How high is the UV index in December in Johnson?
Average temperature in December
Johnson, OK
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is August (92.3°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in December
Johnson, 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 (29.88"Hg).
Average wind speed in December
Johnson, OK
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.9mph).
Average humidity in December
Johnson, OK
- Average humidity in December: 67%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (63%).
Average rainfall in December
Johnson, OK
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (4.06").
The driest months (with the least rainfall) are January and February (1.18").
Average rainfall days in December
Johnson, OK
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in December
Johnson, OK
- Average snowfall in December: 0.67"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Johnson, OK
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (2.3 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
Johnson, OK
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Johnson, OK
- Average sunshine days in December: 22.9 days
The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in December
Johnson, 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
Johnson, OK
- Average cloud cover in December: 33
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Johnson, 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).
Johnson, Oklahoma, USA
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