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 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 arrival of January brings an average high-temperature of a still warm 73.8°F (23.2°C), nearly identical to December's 74.5°F (23.6°C). In Keoneoio, nights during January observe an average temperature decrease to an agreeable 71.1°F (21.7°C).Humidity
The months with the lowest humidity are January and February, with an average relative humidity of 76%.Rainfall
In Keoneoio, in January, it is raining for 10.6 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, in Keoneoio, there are 136.7 rainfall days, and 13.94" (354mm) of precipitation is accumulated.Snowfall
January through August, October through December are months without snowfall.Daylight
In January, the average length of the day is 11h and 3min.On the first day of the month, sunrise is at 7:01 am and sunset at 5:56 pm. On the last day of January, sunrise is at 7:02 am and sunset at 6:16 pm HST.
Sunshine
In Keoneoio, the average sunshine in January is 8.4h.UV index
The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 6 in January suggests the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in January?
What are the least humid months?
What is the average humidity in January?
How many days does it rain in January?
When it does not snow?
How many hours of daylight does Keoneoio have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Keoneoio have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Keoneoio, HI
- Average high temperature in January: 73.8°F
The warmest month (with the highest average high temperature) is September (79°F).
The month with the lowest average high temperature is March (72.9°F).
- Average low temperature in January: 71.1°F
The month with the highest average low temperature is September (76.1°F).
The coldest month (with the lowest average low temperature) is March (69.8°F).
Average pressure in January
Keoneoio, HI
- Average pressure in January: 30"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in January
Keoneoio, HI
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is June (14.4mph).
The calmest month (with the lowest average wind speed) is January (10.9mph).
Average humidity in January
Keoneoio, HI
- Average humidity in January: 76%
The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January and February (76%).
Average rainfall in January
Keoneoio, HI
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is October (2.17").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in January
Keoneoio, HI
- Average rainfall days in January: 10.6 days
The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is September (8.1 days).
Average snowfall days in January
Keoneoio, HI
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Keoneoio, HI
- Average daylight in January: 11h and 1min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in January: 8h and 2min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in January
Keoneoio, HI
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is November (11.2 days).
Average UV index in January
Keoneoio, HI
- Average UV index in January: 6
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in January
Keoneoio, HI
- Average cloud cover in January: 24
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in January
Keoneoio, HI
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Keoneoio, Hawaii, USA
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