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
Ireland records a slight change with January's average high-temperatures adjusting to a still chilly 45°F (7.2°C) from December's 43.3°F (6.3°C). In Ireland, in January, the average low-temperature is a cold 34.3°F (1.3°C).Humidity
The average relative humidity in January is 83%.Rainfall
In Ireland, in January, it is raining for 18.6 days, with typically 5.47" (139mm) of accumulated precipitation. Throughout the year, in Ireland, there are 171 rainfall days, and 37.2" (945mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Ireland, in January, during 1.3 snowfall days, 0.94" (24mm) of snow is typically accumulated. Throughout the year, there are 6.3 snowfall days, and 4.37" (111mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 10min.On the first day of January in Ireland, sunrise is at 7:50 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:13 pm PST.
Sunshine
The average sunshine in January is 4.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in January translates into this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Ireland in January?
What is the average humidity in January in Ireland?
How many days does it rain in January in Ireland?
How much does it snow in Ireland in January?
How many hours of daylight does Ireland have in January?
When are sunrise and sunset in January in Ireland?
How many hours of sunshine does Ireland have in January?
When is the lowest UV index in Ireland?
What is the UV index intensity in January in Ireland?
Average temperature in January
Ireland, WA
- Average high temperature in January: 45°F
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in January: 34.3°F
The month with the highest average low temperature is August (52.7°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in January
Ireland, WA
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Ireland, WA
- Average wind speed in January: 6.8mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in January
Ireland, WA
- Average humidity in January: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall in January
Ireland, WA
- Average rainfall in January: 5.47"
The wettest month (with the highest rainfall) is December (5.63").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in January
Ireland, WA
- Average rainfall days in January: 18.6 days
The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in January
Ireland, WA
- Average snowfall in January: 0.94"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Ireland, WA
- Average snowfall days in January: 1.3 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Ireland, WA
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in January
Ireland, WA
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in January
Ireland, WA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Ireland, WA
- Average cloud cover in January: 56
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in January
Ireland, WA
- Average visibility in January: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Ireland, Washington, USA
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