December weather forecastGraffham, United Kingdom
December
Weather in December
The first month of the winter, December, is still a chilly month in Graffham, United Kingdom, with an average temperature varying between 9.3°C (48.7°F) and 6.1°C (43°F).Temperature
The commencement of December notes an average high-temperature of a frosty 9.3°C (48.7°F), exhibiting little difference from the previous month. Graffham registers an average low-temperature of 6.1°C (43°F) throughout December, a modest decrease from its daytime highs.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 84%.Rainfall
December is the month with the most rainfall in Graffham. Rain falls for 17.2 days and accumulates 64mm (2.52") of precipitation.Snowfall
Months with snowfall in Graffham are January, February, November and December. In Graffham, in December, snow falls for 0.8 days, with typically accumulated 5mm (0.2") of snow. Throughout the year, there are 4.9 snowfall days, and 20mm (0.79") of snow is accumulated.Daylight
The month with the shortest days in Graffham is December, with an average of 8h and 0min of daylight.On the first day of the month, sunrise is at 7:44 am and sunset at 3:59 pm. On the last day of December, in Graffham, sunrise is at 8:05 am and sunset at 4:06 pm GMT.
Sunshine
The average sunshine in December is 4.4h.UV index
In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 in December translates into these instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Graffham, United Kingdom
- Average high temperature in December: 9.3°C
The warmest month (with the highest average high temperature) is August (19.5°C).
The month with the lowest average high temperature is February (7.7°C).
- Average low temperature in December: 6.1°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in December
Graffham, United Kingdom
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in December
Graffham, United Kingdom
- Average wind speed in December: 24.8km/h
The windiest month (with the highest average wind speed) is December (24.8km/h).
The calmest month (with the lowest average wind speed) is July (16.9km/h).
Average humidity in December
Graffham, United Kingdom
- Average humidity in December: 84%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is September (79%).
Average rainfall in December
Graffham, United Kingdom
- Average rainfall in December: 64mm
The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in December
Graffham, United Kingdom
- Average rainfall days in December: 17.2 days
The month with the highest number of rainy days is November (18.8 days).
The month with the least rainy days is September (12.6 days).
Average snowfall in December
Graffham, United Kingdom
- Average snowfall in December: 5mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Graffham, United Kingdom
- Average snowfall days in December: 0.8 days
The months with the highest number of snowfall days are January and February (1.8 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
Graffham, United Kingdom
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Graffham, United Kingdom
- Average sunshine days in December: 9.3 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is November (8.3 days).
Average UV index in December
Graffham, United Kingdom
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in December
Graffham, United Kingdom
- Average cloud cover in December: 56
The month with the most cloud cover is November (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Graffham, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
