Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
The month of January, characterized by an average high of -1.4°C (29.5°F) and a low of -6.5°C (20.3°F), is recognized as the coldest.Humidity
In Shiraoi, the average relative humidity in January is 81%.Rainfall
The month with the least rainfall is January, when the rain falls for 3.9 days and typically collects 17mm (0.67") of precipitation.Snowfall
Months with snowfall in Shiraoi are January through April, November and December. In Shiraoi, in January, snow falls for 10.8 days, with typically accumulated 100mm (3.94") of snow. Throughout the year, there are 43.3 snowfall days, and 428mm (16.85") of snow is accumulated.Daylight
In January, the average length of the day in Shiraoi is 9h and 28min.On the first day of January in Shiraoi, sunrise is at 07:04 and sunset at 16:11. On the last day of the month, sunrise is at 06:50 and sunset at 16:45 JST.
Sunshine
January and February, with an average of 4h of sunshine, are months with the least sunshine.UV index
January is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In January, a daily UV index of 1 turns into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Shiraoi?
How cold is it in Shiraoi in January?
What is the average humidity in January in Shiraoi?
What is the driest month in Shiraoi?
How much does it rain in Shiraoi in January?
How much does it snow in Shiraoi in January?
What is the average length of the day in January in Shiraoi?
What time are sunrise and sunset in January in Shiraoi?
What is the month with the least sunshine in Shiraoi?
How long on average sun shines in January in Shiraoi?
When is the lowest UV index in Shiraoi?
How high is the UV index in January in Shiraoi?
Average temperature in January
Shiraoi, Japan
- Average high temperature in January: -1.4°C
The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-1.4°C).
- Average low temperature in January: -6.5°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is February (-7.2°C).
Average pressure in January
Shiraoi, Japan
- Average pressure in January: 1013.3mbar
The month with the highest atmospheric pressure is November (1016.3mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).
Average wind speed in January
Shiraoi, Japan
- Average wind speed in January: 15.1km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).
Average humidity in January
Shiraoi, Japan
- Average humidity in January: 81%
The month with the highest relative humidity is July (87%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in January
Shiraoi, Japan
- Average rainfall in January: 17mm
The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is January (17mm).
Average rainfall days in January
Shiraoi, Japan
- Average rainfall days in January: 3.9 days
The month with the highest number of rainy days is July (14.8 days).
The months with the least rainy days are January and February (3.9 days).
Average snowfall in January
Shiraoi, Japan
- Average snowfall in January: 100mm
The month with the highest snowfall is February (119mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in January
Shiraoi, Japan
- Average snowfall days in January: 10.8 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Shiraoi, Japan
- Average daylight in January: 9h and 3min
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 January: 4h and 0min
The month with the most sunshine is May (Average sunshine: 9h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 0min).
Average sunshine days in January
Shiraoi, Japan
- Average sunshine days in January: 19.9 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in January
Shiraoi, Japan
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Shiraoi, Japan
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is October (Cloud cover 33).
Average visibility in January
Shiraoi, Japan
- Average visibility in January: 10km
The months with the highest visibility are January, April, September, October, November and December (10km).
The month with the lowest visibility is July (8km).
