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
The average high-temperature for December is a frosty 8.1°C (46.6°F), closely aligning with the temperature of the preceding month. Night temperatures during December in Crawley stabilize at an average of 3.9°C (39°F), closely mirroring the daytime temperatures.Humidity
December is the most humid month in Crawley, with an average relative humidity of 89%.Rainfall
The wettest months in Crawley are November and December, with an average 26mm (1.02") of rainfall.Snowfall
Months with snowfall are January through March, November and December. In Crawley, in December, snow falls for 0.9 days, with typically accumulated 4mm (0.16") of snow. Throughout the year, there are 7.4 snowfall days, and 22mm (0.87") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 0min of daylight.On the first day of the month, sunrise is at 7:42 am and sunset at 3:56 pm. On the last day of December, sunrise is at 8:04 am and sunset at 4:03 pm GMT.
Sunshine
In Crawley, the average sunshine in December is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Crawley. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Crawley in December?
What is the most humid month in Crawley?
What is the average humidity in December in Crawley?
What is the rainiest month in Crawley?
How much does it rain in Crawley in December?
How much does it snow in Crawley in December?
What is the month with the shortest days in Crawley?
How many hours of daylight does Crawley have in December?
When is the sunrise / sunset in December in Crawley?
How long on average sun shines in December in Crawley?
What is the month with the lowest UV index in Crawley?
How high is the UV index in December in Crawley?
Average temperature in December
Crawley, United Kingdom
- Average high temperature in December: 8.1°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in December: 3.9°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in December
Crawley, United Kingdom
- Average pressure in December: 1014.9mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in December
Crawley, United Kingdom
- Average wind speed in December: 17.7km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest months (with the lowest average wind speed) are July and August (13.2km/h).
Average humidity in December
Crawley, United Kingdom
- Average humidity in December: 89%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Crawley, United Kingdom
- Average rainfall in December: 26mm
The wettest months (with the highest rainfall) are November and December (26mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in December
Crawley, United Kingdom
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is November (14.7 days).
The month with the least rainy days is September (8.4 days).
Average snowfall in December
Crawley, United Kingdom
- Average snowfall in December: 4mm
The month with the highest snowfall is February (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Crawley, United Kingdom
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is January (2.8 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
Crawley, 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 1min
The month with the most sunshine is July (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Crawley, United Kingdom
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is November (11 days).
Average UV index in December
Crawley, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Crawley, United Kingdom
- Average cloud cover in December: 59
The months with the most cloud cover are February and November (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 46).
Average visibility in December
Crawley, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Crawley, United Kingdom
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