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
With the onset of December, Helme's average high-temperature slightly adjusts, moderately receding from November's wintry 3.5°C (38.3°F) to a subzero cold -0.4°C (31.3°F). Helme documents an average low-temperature of -3.9°C (25°F) for the nights of December.Humidity
The average relative humidity in December is 92%.Rainfall
In Helme, during December, the rain falls for 10.9 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, there are 164.5 rainfall days, and 500mm (19.69") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 18.5 days. Throughout December, 153mm (6.02") of snow is accumulated. In Helme, during the entire year, snow falls for 87.8 days and aggregates up to 764mm (30.08") 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, sunrise is at 08:37 and sunset at 15:34. On the last day of the month, sunrise is at 09:01 and sunset at 15:37 EET.
Sunshine
With an average of 1.8h of sunshine, December has the least sunshine of the year.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Helme have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Helme, Estonia
- Average high temperature in December: -0.4°C
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (-3.2°C).
- Average low temperature in December: -3.9°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-7.7°C).
Average pressure in December
Helme, Estonia
- Average pressure in December: 1011.2mbar
The month with the highest atmospheric pressure is October (1015.9mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).
Average wind speed in December
Helme, Estonia
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in December
Helme, Estonia
- Average humidity in December: 92%
The months with the highest relative humidity are January and February (93%).
The months with the lowest relative humidity are May and June (72%).
Average rainfall in December
Helme, Estonia
- Average rainfall in December: 35mm
The wettest month (with the highest rainfall) is July (56mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in December
Helme, Estonia
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in December
Helme, Estonia
- Average snowfall in December: 153mm
The month with the highest snowfall is February (199mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Helme, Estonia
- Average snowfall days in December: 18.5 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Helme, Estonia
- 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: 1h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in December
Helme, Estonia
- Average sunshine days in December: 4.9 days
The month with the most sunshine days is May (12.5 days).
The month with the least sunshine days is December (4.9 days).
Average UV index in December
Helme, Estonia
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Helme, Estonia
- Average cloud cover in December: 81
The month with the most cloud cover is December (Cloud cover 81).
The months with the least cloud cover are May and July (Cloud cover 41).
Average visibility in December
Helme, Estonia
- Average visibility in December: 7km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (6km).
