December weather forecast
Utoma, Japan

December

Weather in December

December, the first month of the winter in Utoma, is also a wintry month, with an average temperature fluctuating between 2.3°C (36.1°F) and -1.8°C (28.8°F).

Temperature

December's arrival coincides with a drop in the average high-temperature, decreasing from November's chilly 8.2°C (46.8°F) to a wintry 2.3°C (36.1°F). Utoma sustains a near constant temperature throughout December, with nighttime averages of -1.8°C (28.8°F).

Humidity

In Utoma, the average relative humidity in December is 75%.

Rainfall

In Utoma, Japan, during December, the rain falls for 11 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, there are 131.3 rainfall days, and 303mm (11.93") of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In December, in Utoma, it is snowing for 15.4 days. Throughout December, 55mm (2.17") of snow is accumulated. In Utoma, during the entire year, snow falls for 62.5 days and aggregates up to 229mm (9.02") of snow.

Daylight

December has the shortest days of the year in Utoma, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 06:37 and sunset at 15:57. On the last day of the month, sunrise is at 06:56 and sunset at 16:06 JST.

Sunshine

January and December, with an average of 4.2h of sunshine, are months with the least sunshine.

UV index

In December, the average daily maximum UV index in Utoma is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

How cold is December in Utoma?
The high-temperature in Utoma during December is 2.3°C (36.1°F) and the low-temperature is -1.8°C (28.8°F).
What is the average humidity in December in Utoma?
In December, the average relative humidity in Utoma, Japan, is 75%.
How many days does it rain in December in Utoma?
In December, the rain falls for 11 days. Throughout December, 27mm (1.06") of precipitation is accumulated.
How much does it snow in Utoma in December?
In December, in Utoma, it is snowing for 15.4 days. Throughout December, 55mm (2.17") of snow is accumulated.
What is the month with the shortest days in Utoma?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Utoma, Japan.
What is the average length of the day in December in Utoma?
The average day length in December in Utoma, Japan, is 9h and 10min.
When is the sunrise / sunset in December in Utoma?
In December, on the first day of the month, sunrise is at 06:37 and sunset at 15:57. On the last day of the month, sunrise is at 06:56 and sunset at 16:06 JST.
What is the month with the least sunshine in Utoma?
January and December, with an average of 4.2h of sunshine, are months with the least sunshine.
How long on average sun shines in December in Utoma?
In December, the average sunshine duration in Utoma is 4.2h.
What is the UV index reading in December in Utoma?
In December, the average daily maximum UV index in Utoma is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Utoma, Japan
  • Average high temperature in December: 2.3°C

The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is February (-1°C).

  • Average low temperature in December: -1.8°C

The month with the highest average low temperature is August (18.2°C).
The coldest month (with the lowest average low temperature) is February (-5.2°C).

Average pressure in December
Utoma, Japan
  • Average pressure in December: 1012.6mbar

The months with the highest atmospheric pressure are October and November (1016.1mbar).
The month with the lowest atmospheric pressure is July (1009.2mbar).

Average wind speed in December
Utoma, Japan
  • Average wind speed in December: 26km/h

The windiest month (with the highest average wind speed) is December (26km/h).
The calmest month (with the lowest average wind speed) is July (11.7km/h).

Average humidity in December
Utoma, Japan
  • Average humidity in December: 75%

The month with the highest relative humidity is July (89%).
The months with the lowest relative humidity are October and November (74%).

Average rainfall in December
Utoma, Japan
  • Average rainfall in December: 27mm

The wettest month (with the highest rainfall) is October (41mm).
The driest month (with the least rainfall) is February (15mm).

Average rainfall days in December
Utoma, Japan
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is November (13.5 days).
The month with the least rainy days is June (8.3 days).

Average snowfall in December
Utoma, Japan
  • Average snowfall in December: 55mm

The month with the highest snowfall is January (67mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Utoma, Japan
  • Average snowfall days in December: 15.4 days

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Utoma, Japan
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is May (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).

Average sunshine days in December
Utoma, Japan
  • Average sunshine days in December: 5.4 days

The month with the most sunshine days is May (18.8 days).
The month with the least sunshine days is December (5.4 days).

Average UV index in December
Utoma, Japan
  • Average UV index in December: 2

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

Average cloud cover in December
Utoma, Japan
  • Average cloud cover in December: 54

The months with the most cloud cover are January and December (Cloud cover 54).
The month with the least cloud cover is October (Cloud cover 34).

Average visibility in December
Utoma, Japan
  • Average visibility in December: 8km

The months with the highest visibility are April, September and October (10km).
The months with the lowest visibility are January and December (8km).

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