Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As November transitions into December, Shihoro sees a drop in the average high-temperature, transitioning from a wintry 5.9°C (42.6°F) to a subzero cold -1.6°C (29.1°F). In Shihoro, December nights cool down to an average of -8.6°C (16.5°F).Humidity
The average relative humidity in December is 85%.Rainfall
In December, the rain falls for 13.3 days. Throughout December, 43mm (1.69") of precipitation is accumulated. In Shihoro, during the entire year, the rain falls for 177.1 days and collects up to 628mm (24.72") of precipitation.Snowfall
January through May, November and December are months with snowfall. In Shihoro, during December, snow falls for 13.5 days and regularly aggregates up to 171mm (6.73") of snow. Throughout the year, there are 79.6 snowfall days, and 891mm (35.08") of snow is accumulated.Daylight
December has the shortest days of the year in Shihoro, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 06:39 and sunset at 15:53. On the last day of December, sunrise is at 06:58 and sunset at 16:01 JST.
Sunshine
The average sunshine in December is 6h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is it in Shihoro in December?
What is the average humidity in December in Shihoro?
How much does it rain in Shihoro in December?
How much does it snow in Shihoro in December?
What is the month with the shortest days in Shihoro?
How many hours of daylight does Shihoro have in December?
When is the sunrise / sunset in December in Shihoro?
How many hours of sunshine does Shihoro have in December?
What is the month with the lowest UV index in Shihoro?
How high is the UV index in December in Shihoro?
Average temperature in December
Shihoro, Japan
- Average high temperature in December: -1.6°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (-4.3°C).
- Average low temperature in December: -8.6°C
The month with the highest average low temperature is August (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (-12.7°C).
Average pressure in December
Shihoro, Japan
- Average pressure in December: 1012.2mbar
The month with the highest atmospheric pressure is October (1015.8mbar).
The month with the lowest atmospheric pressure is July (1009.1mbar).
Average wind speed in December
Shihoro, Japan
- Average wind speed in December: 9.9km/h
The windiest months (with the highest average wind speed) are April and December (9.9km/h).
The calmest month (with the lowest average wind speed) is July (6.4km/h).
Average humidity in December
Shihoro, Japan
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and May (74%).
Average rainfall in December
Shihoro, Japan
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is August (86mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days in December
Shihoro, Japan
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is October (10.5 days).
Average snowfall in December
Shihoro, Japan
- Average snowfall in December: 171mm
The month with the highest snowfall is February (207mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Shihoro, Japan
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is February (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Shihoro, Japan
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 6h and 0min
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 18min).
Average sunshine days in December
Shihoro, Japan
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is February (5.9 days).
Average UV index in December
Shihoro, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Shihoro, Japan
- Average cloud cover in December: 36
The month with the most cloud cover is July (Cloud cover 54).
The months with the least cloud cover are October and November (Cloud cover 33).
Average visibility in December
Shihoro, Japan
- Average visibility in December: 8km
The months with the highest visibility are April, May, October and November (9km).
The months with the lowest visibility are January, February, March, June, July, August and September (7km).
Shihoro, Japan
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