December weather forecastUpper Helmsley, United Kingdom
December weather for Upper Helmsley, United Kingdom: In Upper Helmsley, United Kingdom, in December, snow falls for 1.6 days, with typically accumulated 12mm (0.47") of snow. The first month of the winter, December, is still a chilly month in Upper Helmsley, United Kingdom, with an average temperature ranging between max 6.2°C (43.2°F) and min 2.1°C (35.8°F).
December
Weather in December
The first month of the winter, December, is still a chilly month in Upper Helmsley, United Kingdom, with an average temperature ranging between max 6.2°C (43.2°F) and min 2.1°C (35.8°F).Temperature
Upper Helmsley notes an average high-temperature of a still chilly 6.2°C (43.2°F) in December, hardly diverging from November. Nighttime, during December, brings an average low of 2.1°C (35.8°F), a modest reduction from the day's peak.Humidity
The most humid month is December, with an average relative humidity of 90%.Rainfall
In December, in Upper Helmsley, United Kingdom, the rain falls for 13.3 days. Throughout December, 25mm (0.98") of precipitation is accumulated. Throughout the year, in Upper Helmsley, United Kingdom, there are 172.6 rainfall days, and 382mm (15.04") of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Upper Helmsley, United Kingdom, in December, snow falls for 1.6 days, with typically accumulated 12mm (0.47") of snow. Throughout the year, in Upper Helmsley, there are 10.8 snowfall days, and 61mm (2.4") of snow is accumulated.Daylight
December has the shortest days of the year in Upper Helmsley, with an average of 7h and 30min of daylight.On the first day of December in Upper Helmsley, sunrise is at 8:00 am and sunset at 3:45 pm. On the last day of the month, sunrise is at 8:22 am and sunset at 3:51 pm GMT.
Sunshine
In December, the average sunshine is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Upper Helmsley. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Upper Helmsley, United Kingdom
- Average high temperature in December: 6.2°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in December: 2.1°C
The month with the highest average low temperature is August (12°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in December
Upper Helmsley, United Kingdom
- Average pressure in December: 1011.2mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in December
Upper Helmsley, United Kingdom
- Average wind speed in December: 15.9km/h
The windiest month (with the highest average wind speed) is February (16.4km/h).
The calmest month (with the lowest average wind speed) is June (11.8km/h).
Average humidity in December
Upper Helmsley, United Kingdom
- Average humidity in December: 90%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (79%).
Average rainfall in December
Upper Helmsley, United Kingdom
- Average rainfall in December: 25mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in December
Upper Helmsley, United Kingdom
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (11.7 days).
Average snowfall in December
Upper Helmsley, United Kingdom
- Average snowfall in December: 12mm
The month with the highest snowfall is January (18mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Upper Helmsley, United Kingdom
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is February (3.6 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
Upper Helmsley, United Kingdom
- Average daylight in December: 7h and 30min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is July (Average sunshine: 7h and 24min).
The months with the least sunshine are February and November (Average sunshine: 3h and 54min).
Average sunshine days in December
Upper Helmsley, United Kingdom
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is December (14.6 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in December
Upper Helmsley, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Upper Helmsley, United Kingdom
- Average cloud cover in December: 56
The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in December
Upper Helmsley, United Kingdom
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, July and August (9km).
The months with the lowest visibility are January, June, September, October, November and December (8km).
