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
With December's onset, the weather shows a temperature decrease, transitioning from a refreshing 56.3°F (13.5°C) in November to a frosty 45.1°F (7.3°C). In Grenola, December nights cool down to an average of 29.7°F (-1.3°C).Humidity
In Grenola, the average relative humidity in December is 68%.Rainfall
December is the month with the least rainfall. Rain falls for 4.5 days and accumulates 0.59" (15mm) of precipitation.Snowfall
January through March, October through December are months with snowfall. In December, it is snowing for 2.1 days. Throughout December, 0.59" (15mm) of snow is accumulated. Throughout the year, there are 10.8 snowfall days, and 4.25" (108mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 5:08 pm. On the last day of December, sunrise is at 7:39 am and sunset at 5:18 pm CST.
Sunshine
The average sunshine in December is 6.1h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
What is the driest month in Grenola?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Grenola have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Grenola, KS
- Average high temperature in December: 45.1°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (43.7°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in December
Grenola, KS
- 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 (29.86"Hg).
Average wind speed in December
Grenola, KS
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in December
Grenola, KS
- Average humidity in December: 68%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is October (65%).
Average rainfall in December
Grenola, KS
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is December (0.59").
Average rainfall days in December
Grenola, KS
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in December
Grenola, KS
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Grenola, KS
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is February (3.3 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
Grenola, KS
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in December
Grenola, KS
- Average sunshine days in December: 24.2 days
The months with the most sunshine days are January and December (24.2 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in December
Grenola, KS
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Grenola, KS
- Average cloud cover in December: 31
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Grenola, KS
- 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).
Grenola, Kansas, USA
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