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
December
Weather in December
Temperature
The transition into December indicates a reduction in the average high-temperature, down to a wintry 2.9°C (37.2°F) from November's chilly 9.5°C (49.1°F). In the month of December, Hiraka records a consistent average low-temperature of -4.9°C (23.2°F).Humidity
The average relative humidity in December in Hiraka is 80%.Rainfall
December is the month with the least rainfall. Rain falls for 15 days and accumulates 43mm (1.69") of precipitation.Snowfall
Months with snowfall in Hiraka are January through April, November and December. In Hiraka, during December, snow falls for 15.9 days and regularly aggregates up to 147mm (5.79") of snow. In Hiraka, during the entire year, snow falls for 77.1 days and aggregates up to 965mm (37.99") of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 06:38 and sunset at 16:31. On the last day of December, in Hiraka, sunrise is at 06:56 and sunset at 16:41 JST.
Sunshine
The average sunshine in December is 5.9h.UV index
In Hiraka, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Hiraka in December?
What is the average humidity in December in Hiraka?
What is the driest month in Hiraka?
How much does it rain in Hiraka in December?
How many days does it snow in December in Hiraka?
What is the month with the shortest days in Hiraka?
What is the average length of the day in December in Hiraka?
When are sunrise and sunset in December in Hiraka?
How long on average sun shines in December in Hiraka?
What is the UV index intensity in December in Hiraka?
Average temperature in December
Hiraka, Japan
- Average high temperature in December: 2.9°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (-0.2°C).
- Average low temperature in December: -4.9°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is January (-8.8°C).
Average pressure in December
Hiraka, Japan
- Average pressure in December: 1017.4mbar
The month with the highest atmospheric pressure is November (1018.9mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in December
Hiraka, Japan
- Average wind speed in December: 9.1km/h
The windiest month (with the highest average wind speed) is January (9.5km/h).
The calmest month (with the lowest average wind speed) is August (5.8km/h).
Average humidity in December
Hiraka, Japan
- Average humidity in December: 80%
The months with the highest relative humidity are July and September (86%).
The month with the lowest relative humidity is May (74%).
Average rainfall in December
Hiraka, Japan
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is October (137mm).
The driest month (with the least rainfall) is December (43mm).
Average rainfall days in December
Hiraka, Japan
- Average rainfall days in December: 15 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (13.3 days).
Average snowfall in December
Hiraka, Japan
- Average snowfall in December: 147mm
The month with the highest snowfall is January (276mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Hiraka, Japan
- Average snowfall days in December: 15.9 days
The month with the highest number of snowfall days is January (22 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hiraka, Japan
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 5min
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 24min).
Average sunshine days in December
Hiraka, Japan
- Average sunshine days in December: 7.7 days
The month with the most sunshine days is July (14.9 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in December
Hiraka, Japan
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Hiraka, Japan
- Average cloud cover in December: 45
The month with the most cloud cover is September (Cloud cover 61).
The month with the least cloud cover is May (Cloud cover 44).
Average visibility in December
Hiraka, Japan
- Average visibility in December: 8km
The months with the highest visibility are January, March, April, May and December (8km).
The months with the lowest visibility are July, August, September and October (6km).
