December weather forecastUonuma, Japan
December weather forecast for Uonuma, Japan: In Uonuma, in December, snow falls for 13.5 days, with typically accumulated 632mm (24.88") of snow. The first month of the winter, December, is also a wintry month in Uonuma, Japan, with an average temperature fluctuating between 5.2°C (41.4°F) and 0.3°C (32.5°F).
December
Weather in December
The first month of the winter, December, is also a wintry month in Uonuma, Japan, with an average temperature fluctuating between 5.2°C (41.4°F) and 0.3°C (32.5°F).Temperature
In December, the average high-temperature goes from a fresh 11.5°C (52.7°F) in November to an icy 5.2°C (41.4°F). Uonuma maintains a minor drop in temperature during December nights, with averages of 0.3°C (32.5°F).Humidity
In Uonuma, the average relative humidity in December is 85%.Rainfall
In Uonuma, during December, the rain falls for 18.8 days and regularly aggregates up to 182mm (7.17") of precipitation. Throughout the year, there are 192.2 rainfall days, and 1224mm (48.19") of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Uonuma, in December, snow falls for 13.5 days, with typically accumulated 632mm (24.88") of snow. In Uonuma, during the entire year, snow falls for 68.1 days and aggregates up to 2573mm (101.3") of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 06:39 and sunset at 16:27. On the last day of the month, sunrise is at 06:57 and sunset at 16:36 JST.
Sunshine
The average sunshine in December in Uonuma is 3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Uonuma, Japan
- Average high temperature in December: 5.2°C
The warmest month (with the highest average high temperature) is August (28.6°C).
The month with the lowest average high temperature is January (1.9°C).
- Average low temperature in December: 0.3°C
The month with the highest average low temperature is August (20.1°C).
The coldest month (with the lowest average low temperature) is January (-3°C).
Average pressure in December
Uonuma, Japan
- Average pressure in December: 1017.3mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Uonuma, Japan
- Average wind speed in December: 12.6km/h
The windiest months (with the highest average wind speed) are January and December (12.6km/h).
The calmest month (with the lowest average wind speed) is July (6.3km/h).
Average humidity in December
Uonuma, Japan
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (74%).
Average rainfall in December
Uonuma, Japan
- Average rainfall in December: 182mm
The wettest month (with the highest rainfall) is January (187mm).
The driest month (with the least rainfall) is May (50mm).
Average rainfall days in December
Uonuma, Japan
- Average rainfall days in December: 18.8 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is May (12.6 days).
Average snowfall in December
Uonuma, Japan
- Average snowfall in December: 632mm
The month with the highest snowfall is January (971mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Uonuma, Japan
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (23 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
Uonuma, Japan
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Uonuma, Japan
- Average sunshine days in December: 4.3 days
The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is January (1.8 days).
Average UV index in December
Uonuma, 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
Uonuma, Japan
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Uonuma, Japan
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is January (7km).
