December weather forecastOnojo, Japan
December
Weather in December
December, the first month of the winter in Onojo, is still a cool month, with temperature in the range of an average high of 10.3°C (50.5°F) and an average low of 4.8°C (40.6°F).Temperature
In Onojo, the beginning of December is marked by a lowered average high-temperature, shifting from November's comfortable 16.3°C (61.3°F) to a fresh 10.3°C (50.5°F). In the month of December, Onojo records a consistent average low-temperature of 4.8°C (40.6°F).Humidity
In Onojo, the average relative humidity in December is 76%.Rainfall
In Onojo, during December, the rain falls for 16.5 days and regularly aggregates up to 73mm (2.87") of precipitation. In Onojo, Japan, during the entire year, the rain falls for 183.3 days and collects up to 1145mm (45.08") of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 3.1 snowfall days, it receives 19mm (0.75") of snow. Throughout the year, there are 11.9 snowfall days, and 71mm (2.8") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 07:04 and sunset at 17:10. On the last day of the month, sunrise is at 07:22 and sunset at 17:20 JST.
Sunshine
In Onojo, the average sunshine in December is 4h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Onojo, Japan
- Average high temperature in December: 10.3°C
The warmest month (with the highest average high temperature) is August (31.1°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in December: 4.8°C
The month with the highest average low temperature is August (23.5°C).
The coldest month (with the lowest average low temperature) is January (2.5°C).
Average pressure in December
Onojo, Japan
- Average pressure in December: 1021.4mbar
The month with the highest atmospheric pressure is January (1022mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in December
Onojo, Japan
- Average wind speed in December: 10.6km/h
The windiest months (with the highest average wind speed) are January and March (10.7km/h).
The calmest month (with the lowest average wind speed) is June (7.6km/h).
Average humidity in December
Onojo, Japan
- Average humidity in December: 76%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is March (73%).
Average rainfall in December
Onojo, Japan
- Average rainfall in December: 73mm
The wettest month (with the highest rainfall) is July (221mm).
The driest month (with the least rainfall) is January (51mm).
Average rainfall days in December
Onojo, Japan
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is October (11.4 days).
Average snowfall in December
Onojo, Japan
- Average snowfall in December: 19mm
The month with the highest snowfall is January (33mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Onojo, Japan
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Onojo, Japan
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Onojo, Japan
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (7.1 days).
Average UV index in December
Onojo, 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 and December (UV index 2).
Average cloud cover in December
Onojo, Japan
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and October (Cloud cover 39).
Average visibility in December
Onojo, Japan
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, September, October, November and December (9km).
The months with the lowest visibility are June, July and August (8km).
