December weather forecastAimoto, Japan

December

Weather in December

December, the first month of the winter in Aimoto, is also a frosty month, with an average temperature ranging between max 8.6°C (47.5°F) and min 2.6°C (36.7°F).

Temperature

A decrease in the average high-temperature is observed during December, shifting from a mild 14.6°C (58.3°F) in November to a frosty 8.6°C (47.5°F). Aimoto records an average low of 2.6°C (36.7°F) throughout the nights in December.

Humidity

In Aimoto, the average relative humidity in December is 81%.

Rainfall

In December, the rain falls for 7.9 days. Throughout December, 18mm (0.71") of precipitation is accumulated. In Aimoto, during the entire year, the rain falls for 131.4 days and collects up to 393mm (15.47") of precipitation.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows in Aimoto. Throughout December, in the average 1.5 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, in Aimoto, there are 8.5 snowfall days, and 24mm (0.94") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December in Aimoto, sunrise is at 06:48 and sunset at 16:47. On the last day of the month, sunrise is at 07:06 and sunset at 16:57 JST.

Sunshine

In Aimoto, the average sunshine in December is 4.8h.

UV index

The months with the lowest UV index in Aimoto, Japan, are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

The high-temperature, in December, in Aimoto, is 8.6°C (47.5°F), while the low-temperature averages to 2.6°C (36.7°F). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is calculated to be 40°C (104°F).

The average relative humidity in December is 81%.

In Aimoto, Japan, during December, the rain falls for 7.9 days and regularly aggregates up to 18mm (0.71") of precipitation.

December is the first month it typically snows in Aimoto, Japan. Throughout December, in the average 1.5 snowfall days, it receives 5mm (0.2") of snow.

The month with the shortest days in Aimoto, Japan, is December, with an average of 9h and 54min of daylight.

The average day length in December is 9h and 52min.

In December, on the first day of the month, sunrise is at 06:48 and sunset at 16:47. On the last day of the month, in Aimoto, Japan, sunrise is at 07:06 and sunset at 16:57 JST.

In Aimoto, the average sunshine duration in December is 4.8h.

The months with the lowest UV index in Aimoto, Japan, are January, February and December, with an average maximum UV index of 2.

In Aimoto, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to 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
Aimoto, Japan

  • Average high temperature in December: 8.6°C

The warmest month (with the highest average high temperature) is August (30.7°C).
The month with the lowest average high temperature is January (6.4°C).

  • Average low temperature in December: 2.6°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).

Average pressure in December
Aimoto, Japan

  • Average pressure in December: 1019.5mbar

The month with the highest atmospheric pressure is February (1020mbar).
The month with the lowest atmospheric pressure is June (1008.7mbar).

Average wind speed in December
Aimoto, Japan

  • Average wind speed in December: 8.8km/h

The windiest month (with the highest average wind speed) is March (9.8km/h).
The calmest month (with the lowest average wind speed) is June (7.5km/h).

Average humidity in December
Aimoto, Japan

  • Average humidity in December: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is May (75%).

Average rainfall in December
Aimoto, Japan

  • Average rainfall in December: 18mm

The wettest month (with the highest rainfall) is July (88mm).
The driest months (with the least rainfall) are January and November (9mm).

Average rainfall days in December
Aimoto, Japan

  • Average rainfall days in December: 7.9 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in December
Aimoto, Japan

  • Average snowfall in December: 5mm

The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Aimoto, Japan

  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

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

  • Average daylight in December: 9h and 54min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 4h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in December
Aimoto, Japan

  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is July (9.2 days).

Average UV index in December
Aimoto, Japan

  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Aimoto, Japan

  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in December
Aimoto, Japan

  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May, October, November and December (9km).
The months with the lowest visibility are June, July, August and September (8km).