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
December
Weather in December
Temperature
As December takes its course, Johnby's average high-temperature registers at a cold 5.7°C (42.3°F), closely aligning with the preceding month. In the month of December, Johnby experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 2.2°C (36°F).Humidity
In Johnby, the average relative humidity in December is 90%.Rainfall
The month with the most rainfall is December, when the rain falls for 20.6 days and typically aggregates up to 101mm (3.98") of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 2 days. Throughout December, 14mm (0.55") of snow is accumulated. Throughout the year, there are 12.2 snowfall days, and 135mm (5.31") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 24min of daylight.On the first day of the month, sunrise is at 8:11 am and sunset at 3:49 pm. On the last day of December, sunrise is at 8:34 am and sunset at 3:55 pm GMT.
Sunshine
January, February and December, with an average of 3.2h of sunshine, are months with the least sunshine in Johnby.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December in Johnby?
Average temperature in December
Johnby, United Kingdom
- Average high temperature in December: 5.7°C
The warmest month (with the highest average high temperature) is July (16.7°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in December: 2.2°C
The month with the highest average low temperature is August (10.3°C).
The coldest month (with the lowest average low temperature) is January (1.2°C).
Average pressure in December
Johnby, United Kingdom
- Average pressure in December: 1010mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1008mbar).
Average wind speed in December
Johnby, United Kingdom
- Average wind speed in December: 19.9km/h
The windiest month (with the highest average wind speed) is December (19.9km/h).
The calmest month (with the lowest average wind speed) is June (12.2km/h).
Average humidity in December
Johnby, United Kingdom
- Average humidity in December: 90%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (84%).
Average rainfall in December
Johnby, United Kingdom
- Average rainfall in December: 101mm
The wettest month (with the highest rainfall) is December (101mm).
The driest month (with the least rainfall) is April (43mm).
Average rainfall days in December
Johnby, United Kingdom
- Average rainfall days in December: 20.6 days
The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is February (16.3 days).
Average snowfall in December
Johnby, United Kingdom
- Average snowfall in December: 14mm
The month with the highest snowfall is January (49mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Johnby, United Kingdom
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is February (4.1 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
Johnby, United Kingdom
- Average daylight in December: 7h and 2min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is April (Average sunshine: 6h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 12min).
Average sunshine days in December
Johnby, United Kingdom
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is April (9.9 days).
The months with the least sunshine days are July and August (4.4 days).
Average UV index in December
Johnby, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Johnby, United Kingdom
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 55).
Average visibility in December
Johnby, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are March, April and May (9km).
The months with the lowest visibility are January, February, June, July, August, September, October, November and December (8km).
