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
Grimstone greets December with an average high-temperature of a frosty 9.9°C (49.8°F), marking a slight deviation from the preceding month. Grimstone, in December, registers a nighttime average temperature of 7.6°C (45.7°F).Humidity
February through April, September through December, with an average relative humidity of 81%, are the least humid months.Rainfall
In Grimstone, in December, during 15 rainfall days, 55mm (2.17") of precipitation is typically accumulated. Throughout the year, in Grimstone, there are 167.3 rainfall days, and 471mm (18.54") of precipitation is accumulated.Snowfall
In Grimstone, United Kingdom, snow does not fall in March through October and December.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:50 am and sunset at 4:07 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:14 pm GMT.
Sunshine
The average sunshine in December in Grimstone, United Kingdom, is 4.2h.UV index
The average daily maximum UV index in December in Grimstone is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 3 suggests this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Grimstone?
What is the least humid month in Grimstone?
What is the average humidity in December in Grimstone?
How many days does it rain in December in Grimstone?
When it does not snow in Grimstone?
Does it snow in Grimstone in December?
What is the month with the shortest days in Grimstone?
How many hours of daylight does Grimstone have in December?
What time are sunrise and sunset in December in Grimstone?
How long on average sun shines in December in Grimstone?
How high is the UV index in December in Grimstone?
Average temperature in December
Grimstone, United Kingdom
- Average high temperature in December: 9.9°C
The warmest month (with the highest average high temperature) is August (18.2°C).
The month with the lowest average high temperature is February (8.3°C).
- Average low temperature in December: 7.6°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).
Average pressure in December
Grimstone, United Kingdom
- Average pressure in December: 1015.1mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in December
Grimstone, United Kingdom
- Average wind speed in December: 30.1km/h
The windiest month (with the highest average wind speed) is December (30.1km/h).
The calmest month (with the lowest average wind speed) is July (19.5km/h).
Average humidity in December
Grimstone, United Kingdom
- Average humidity in December: 81%
The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are February, March, April, September, October, November and December (81%).
Average rainfall in December
Grimstone, United Kingdom
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is November (58mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in December
Grimstone, United Kingdom
- Average rainfall days in December: 15 days
The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (11.1 days).
Average snowfall in December
Grimstone, United Kingdom
- Average snowfall in December: 0mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Grimstone, United Kingdom
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.2 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
Grimstone, United Kingdom
- Average daylight in December: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 6min).
Average sunshine days in December
Grimstone, United Kingdom
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in December
Grimstone, United Kingdom
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in December
Grimstone, United Kingdom
- Average cloud cover in December: 59
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Grimstone, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
