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
The arrival of December is marked by an average high-temperature of a still chilly 6.5°C (43.7°F), bearing a close resemblance to November. A minimal decline in temperature from daytime highs is anticipated throughout the December nights, averaging an icy 4.2°C (39.6°F).Humidity
The average relative humidity in December in Helmsdale is 81%.Rainfall
In Helmsdale, in December, during 12.3 rainfall days, 15mm (0.59") of precipitation is typically accumulated. Throughout the year, in Helmsdale, there are 147 rainfall days, and 202mm (7.95") of precipitation is accumulated.Snowfall
Months with snowfall in Helmsdale are January through May, November and December. The month with the most snowfall in Helmsdale is December, when snow falls for 4.5 days and typically aggregates up to 17mm (0.67") of snow.Daylight
With an average of 6h and 36min of daylight, December has the shortest days of the year.On the first day of December in Helmsdale, sunrise is at 8:36 am and sunset at 3:31 pm. On the last day of the month, sunrise is at 9:00 am and sunset at 3:34 pm GMT.
Sunshine
December has the least sunshine of the year, with an average of 4.2h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Helmsdale in December?
What is the average humidity in December in Helmsdale?
How many days does it rain in December in Helmsdale?
When does it snow the most in Helmsdale?
How much does it snow in Helmsdale in December?
What is the month with the shortest days in Helmsdale?
What is the average length of the day in December in Helmsdale?
When is the sunrise / sunset in December in Helmsdale?
What is the month with the least sunshine in Helmsdale?
How many hours of sunshine does Helmsdale have in December?
What are the months with the lowest UV index in Helmsdale?
How high is the UV index in December in Helmsdale?
Average temperature in December
Helmsdale, United Kingdom
- Average high temperature in December: 6.5°C
The warmest month (with the highest average high temperature) is July (15.2°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in December: 4.2°C
The month with the highest average low temperature is August (11.7°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average pressure in December
Helmsdale, United Kingdom
- Average pressure in December: 1004.8mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in December
Helmsdale, United Kingdom
- Average wind speed in December: 25.4km/h
The windiest month (with the highest average wind speed) is January (26.8km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in December
Helmsdale, United Kingdom
- Average humidity in December: 81%
The months with the highest relative humidity are July and August (84%).
The months with the lowest relative humidity are March and April (79%).
Average rainfall in December
Helmsdale, United Kingdom
- Average rainfall in December: 15mm
The wettest month (with the highest rainfall) is July (24mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in December
Helmsdale, United Kingdom
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (9 days).
Average snowfall in December
Helmsdale, United Kingdom
- Average snowfall in December: 17mm
The month with the highest snowfall is December (17mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Helmsdale, United Kingdom
- Average snowfall days in December: 4.5 days
The months with the highest number of snowfall days are February and December (4.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Helmsdale, United Kingdom
- Average daylight in December: 6h and 4min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Helmsdale, United Kingdom
- Average sunshine days in December: 12 days
The month with the most sunshine days is May (17.4 days).
The month with the least sunshine days is November (11.1 days).
Average UV index in December
Helmsdale, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June, July and September (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
Helmsdale, United Kingdom
- Average cloud cover in December: 55
The months with the most cloud cover are March and June (Cloud cover 59).
The months with the least cloud cover are April and May (Cloud cover 53).
Average visibility in December
Helmsdale, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
