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 average high-temperature recedes from November's cool 51.6°F (10.9°C) to an icy 39.4°F (4.1°C). Effingham reports an average low-temperature of 25.9°F (-3.4°C) during the nights of December.Humidity
In December, the average relative humidity is 74%.Rainfall
In December, the rain falls for 5.2 days. Throughout December, 0.87" (22mm) of precipitation is accumulated. In Effingham, Kansas, during the entire year, the rain falls for 125.3 days and collects up to 23.94" (608mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Effingham, in December, snow falls for 3.9 days, with typically accumulated 1.1" (28mm) of snow. In Effingham, during the entire year, snow falls for 19.9 days and aggregates up to 7.87" (200mm) 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 7:23 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:08 pm CST.
Sunshine
In December, the average sunshine is 5.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
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 Effingham have in December?
What time are sunrise and sunset in December in Effingham?
How long on average sun shines in December?
When is the lowest UV index in Effingham?
How high is the UV index in December?
Average temperature in December
Effingham, KS
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Effingham, 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 (29.88"Hg).
Average wind speed in December
Effingham, KS
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Effingham, KS
- Average humidity in December: 74%
The months with the highest relative humidity are May and June (78%).
The months with the lowest relative humidity are October and November (69%).
Average rainfall in December
Effingham, KS
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in December
Effingham, KS
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in December
Effingham, KS
- Average snowfall in December: 1.1"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Effingham, KS
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Effingham, KS
- 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: 5h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Effingham, KS
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in December
Effingham, KS
- Average UV index in December: 2
The months with the highest UV index are May, 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
Effingham, KS
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Effingham, 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).
Effingham, Kansas, USA
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