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
December is characterized by a reduction in the average high-temperature, from a cool 12°C (53.6°F) in November to a wintry 5.7°C (42.3°F). Hasumachi's December nights exhibit a subtle drop in temperature, averaging at 0.8°C (33.4°F), closely aligned with the daytime highs.Humidity
In December, the average relative humidity is 81%.Rainfall
In Hasumachi, during December, the rain falls for 21.5 days and regularly aggregates up to 161mm (6.34") of precipitation. In Hasumachi, during the entire year, the rain falls for 219.3 days and collects up to 1322mm (52.05") of precipitation.Snowfall
Months with snowfall are January through April and December. December is the first month it typically snows. Throughout December, in the average 10.3 snowfall days, it receives 322mm (12.68") of snow. Throughout the year, in Hasumachi, there are 48 snowfall days, and 1270mm (50") of snow is accumulated.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 06:45 and sunset at 16:35. On the last day of the month, sunrise is at 07:03 and sunset at 16:44 JST.
Sunshine
In Hasumachi, the average sunshine in December is 3.8h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 1 in December leads to these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Hasumachi?
What is the average humidity in December?
How much does it rain in December?
When does it start to snow?
What is the month with the shortest days?
What is the average length of the day in December in Hasumachi?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Hasumachi, Japan
- Average high temperature in December: 5.7°C
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in December: 0.8°C
The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is February (-2.8°C).
Average pressure in December
Hasumachi, Japan
- Average pressure in December: 1018.1mbar
The months with the highest atmospheric pressure are February and November (1019.4mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in December
Hasumachi, Japan
- Average wind speed in December: 12km/h
The windiest month (with the highest average wind speed) is December (12km/h).
The calmest months (with the lowest average wind speed) are June and August (7.4km/h).
Average humidity in December
Hasumachi, Japan
- Average humidity in December: 81%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Hasumachi, Japan
- Average rainfall in December: 161mm
The wettest month (with the highest rainfall) is July (179mm).
The driest month (with the least rainfall) is May (64mm).
Average rainfall days in December
Hasumachi, Japan
- Average rainfall days in December: 21.5 days
The month with the highest number of rainy days is July (24.8 days).
The month with the least rainy days is May (14.4 days).
Average snowfall in December
Hasumachi, Japan
- Average snowfall in December: 322mm
The month with the highest snowfall is January (469mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Hasumachi, Japan
- Average snowfall days in December: 10.3 days
The month with the highest number of snowfall days is January (17.5 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
Hasumachi, Japan
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Hasumachi, Japan
- Average sunshine days in December: 4 days
The month with the most sunshine days is May (13.6 days).
The month with the least sunshine days is January (3.5 days).
Average UV index in December
Hasumachi, Japan
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Hasumachi, Japan
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 33).
Average visibility in December
Hasumachi, Japan
- Average visibility in December: 9km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (8km).
