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
January, having an average high-temperature of 2.8°C (37°F) and an average low-temperature of -1.6°C (29.1°F), is the coldest month.Humidity
With an average relative humidity of 84%, January is the most humid month in Itoigawa.Rainfall
In Itoigawa, during January, the rain falls for 14.3 days and regularly aggregates up to 139mm (5.47") of precipitation. In Itoigawa, during the entire year, the rain falls for 200.6 days and collects up to 1190mm (46.85") of precipitation.Snowfall
January through April, November and December are months with snowfall in Itoigawa. The month with the most snowfall is January, when snow falls for 17.4 days and typically aggregates up to 466mm (18.35") of snow.Daylight
In Itoigawa, the average length of the day in January is 9h and 57min.On the first day of the month, sunrise is at 07:01 and sunset at 16:41. On the last day of January, sunrise is at 06:52 and sunset at 17:11 JST.
Sunshine
The month with the least sunshine is January, with an average of 2.7h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during January translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Itoigawa?
How cold is January in Itoigawa?
What is the most humid month in Itoigawa?
What is the average humidity in January in Itoigawa?
How many days does it rain in January in Itoigawa?
What is the snowiest month in Itoigawa?
How many days does it snow in January in Itoigawa?
How many hours of daylight does Itoigawa have in January?
When are sunrise and sunset in January in Itoigawa?
What is the month with the least sunshine in Itoigawa?
How long on average sun shines in January in Itoigawa?
What is the month with the lowest UV index in Itoigawa?
What is the UV index intensity in January in Itoigawa?
Average temperature in January
Itoigawa, Japan
- Average high temperature in January: 2.8°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in January: -1.6°C
The month with the highest average low temperature is August (20.9°C).
The coldest month (with the lowest average low temperature) is February (-1.9°C).
Average pressure in January
Itoigawa, Japan
- Average pressure in January: 1017.9mbar
The month with the highest atmospheric pressure is November (1019.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in January
Itoigawa, Japan
- Average wind speed in January: 15.4km/h
The windiest months (with the highest average wind speed) are January and December (15.4km/h).
The calmest months (with the lowest average wind speed) are July and August (7.7km/h).
Average humidity in January
Itoigawa, Japan
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is May (74%).
Average rainfall in January
Itoigawa, Japan
- Average rainfall in January: 139mm
The wettest month (with the highest rainfall) is July (142mm).
The driest month (with the least rainfall) is May (57mm).
Average rainfall days in January
Itoigawa, Japan
- Average rainfall days in January: 14.3 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in January
Itoigawa, Japan
- Average snowfall in January: 466mm
The month with the highest snowfall is January (466mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in January
Itoigawa, Japan
- Average snowfall days in January: 17.4 days
The month with the highest number of snowfall days is January (17.4 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
Itoigawa, Japan
- Average daylight in January: 9h and 5min
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 January: 2h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in January
Itoigawa, Japan
- Average sunshine days in January: 4.3 days
The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is January (4.3 days).
Average UV index in January
Itoigawa, Japan
- Average UV index in January: 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 January
Itoigawa, Japan
- Average cloud cover in January: 74
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility in January
Itoigawa, Japan
- Average visibility in January: 8km
The months with the highest visibility are October and November (10km).
The month with the lowest visibility is January (8km).
