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
Weather in January
Temperature
The coldest period tends to be January, when average temperatures fluctuate between a high of 8.4°C (47.1°F) and a low of 1.4°C (34.5°F).Humidity
With an average relative humidity of 58%, January is the least humid month in Irumagawa.Rainfall
In Irumagawa, in January, it is raining for 4.8 days, with typically 26mm (1.02") of accumulated precipitation. In Irumagawa, during the entire year, the rain falls for 146.2 days and collects up to 669mm (26.34") of precipitation.Snowfall
Months with snowfall are January through March and November. January is the first month it typically snows in Irumagawa. Throughout January, in the average 1 snowfall days, it receives 14mm (0.55") of snow. Throughout the year, there are 3.7 snowfall days, and 62mm (2.44") of snow is accumulated.Daylight
In January, the average length of the day is 10h and 2min.On the first day of the month, sunrise is at 06:52 and sunset at 16:38. On the last day of January, in Irumagawa, sunrise is at 06:43 and sunset at 17:07 JST.
Sunshine
The average sunshine in January is 6.7h.UV index
January is the month with the lowest UV index in Irumagawa, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during January translates into the following guidance:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What is the coldest time of year in Irumagawa?
What are January temperatures in Irumagawa?
What is the least humid month in Irumagawa?
What is the average humidity in January in Irumagawa?
How many days does it rain in January in Irumagawa?
When does it start snowing in Irumagawa?
What is the average length of the day in January in Irumagawa?
What time are sunrise and sunset in January in Irumagawa?
How long on average sun shines in January in Irumagawa?
What is the month with the lowest UV index in Irumagawa?
What is the UV index intensity in January in Irumagawa?
Average temperature in January
Irumagawa, Japan
- Average high temperature in January: 8.4°C
The warmest month (with the highest average high temperature) is August (32°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in January: 1.4°C
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure in January
Irumagawa, Japan
- Average pressure in January: 1016.6mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in January
Irumagawa, Japan
- Average wind speed in January: 11.2km/h
The windiest month (with the highest average wind speed) is April (11.5km/h).
The calmest month (with the lowest average wind speed) is July (8.7km/h).
Average humidity in January
Irumagawa, Japan
- Average humidity in January: 58%
The months with the highest relative humidity are June and July (73%).
The month with the lowest relative humidity is January (58%).
Average rainfall in January
Irumagawa, Japan
- Average rainfall in January: 26mm
The wettest month (with the highest rainfall) is October (102mm).
The driest month (with the least rainfall) is December (21mm).
Average rainfall days in January
Irumagawa, Japan
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in January
Irumagawa, Japan
- Average snowfall in January: 14mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days in January
Irumagawa, Japan
- Average snowfall days in January: 1 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in January /
Average sunshine in January
Irumagawa, Japan
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 6h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The months with the least sunshine are February and November (Average sunshine: 6h and 12min).
Average sunshine days in January
Irumagawa, Japan
- Average sunshine days in January: 25.3 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in January
Irumagawa, Japan
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in January
Irumagawa, Japan
- Average cloud cover in January: 26
The month with the most cloud cover is June (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in January
Irumagawa, Japan
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).
Irumagawa, Japan
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