December weather forecastUsuda, Japan

December

Weather in December

December, the first month of the winter in Usuda, is still a cold month, with an average temperature ranging between min -4.9°C (23.2°F) and max 2.9°C (37.2°F).

Temperature

The onset of December comes with a shift in the average high-temperature, falling from a frosty 9.5°C (49.1°F) in November to a wintry 2.9°C (37.2°F). The temperature lowers to an average of -4.9°C (23.2°F) during December nights.

Humidity

In Usuda, Japan, the average relative humidity in December is 80%.

Rainfall

December is the month with the least rainfall. Rain falls for 15 days and accumulates 43mm (1.69") of precipitation.

Snowfall

Months with snowfall in Usuda, Japan, are January through April, November and December. In Usuda, in December, snow falls for 15.9 days, with typically accumulated 147mm (5.79") of snow. In Usuda, during the entire year, snow falls for 77.1 days and aggregates up to 965mm (37.99") of snow.

Daylight

The month with the shortest days in Usuda is December, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 06:38 and sunset at 16:31. On the last day of December, in Usuda, sunrise is at 06:56 and sunset at 16:41 JST.

Sunshine

In December, the average sunshine is 5.9h.

UV index

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the UV index of 2 transforms into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

In December, the average high-temperature and low-temperature are 2.9°C (37.2°F) and -4.9°C (23.2°F) respectively.

In Usuda, the average relative humidity in December is 80%.

The month with the least rainfall in Usuda is December, when the rain falls for 15 days and typically collects 43mm (1.69") of precipitation.

In Usuda, in December, it is raining for 15 days, with typically 43mm (1.69") of accumulated precipitation.

In Usuda, Japan, in December, snow falls for 15.9 days, with typically accumulated 147mm (5.79") of snow.

December has the shortest days of the year in Usuda, Japan, with an average of 9h and 42min of daylight.

In December, the average day length in Usuda is 9h and 45min.

On the first day of December, sunrise is at 06:38 and sunset at 16:31. On the last day of the month, sunrise is at 06:56 and sunset at 16:41 JST.

In December, the average sunshine duration in Usuda, Japan, is 5.9h.

In Usuda, Japan, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Usuda, Japan

  • Average high temperature in December: 2.9°C

The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (-0.2°C).

  • Average low temperature in December: -4.9°C

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).

Average pressure in December
Usuda, Japan

  • Average pressure in December: 1017.4mbar

The month with the highest atmospheric pressure is November (1018.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in December
Usuda, Japan

  • Average wind speed in December: 9.1km/h

The windiest month (with the highest average wind speed) is January (9.5km/h).
The calmest month (with the lowest average wind speed) is August (5.8km/h).

Average humidity in December
Usuda, Japan

  • Average humidity in December: 80%

The months with the highest relative humidity are July and September (86%).
The month with the lowest relative humidity is May (74%).

Average rainfall in December
Usuda, Japan

  • Average rainfall in December: 43mm

The wettest month (with the highest rainfall) is October (137mm).
The driest month (with the least rainfall) is December (43mm).

Average rainfall days in December
Usuda, Japan

  • Average rainfall days in December: 15 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (13.3 days).

Average snowfall in December
Usuda, Japan

  • Average snowfall in December: 147mm

The month with the highest snowfall is January (276mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Usuda, Japan

  • Average snowfall days in December: 15.9 days

The month with the highest number of snowfall days is January (22 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Usuda, Japan

  • Average daylight in December: 9h and 42min

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: 5h and 54min

The month with the most sunshine is May (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

Average sunshine days in December
Usuda, Japan

  • Average sunshine days in December: 7.7 days

The month with the most sunshine days is July (14.9 days).
The month with the least sunshine days is February (5.8 days).

Average UV index in December
Usuda, Japan

  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Usuda, Japan

  • Average cloud cover in December: 45

The month with the most cloud cover is September (Cloud cover 61).
The month with the least cloud cover is May (Cloud cover 44).

Average visibility in December
Usuda, Japan

  • Average visibility in December: 8km

The months with the highest visibility are January, March, April, May and December (8km).
The months with the lowest visibility are July, August, September and October (6km).