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, with average temperatures reaching a high of 8.3°C (46.9°F) and a low of 4.4°C (39.9°F), is the coldest month.Humidity
The average relative humidity in January in Grenagh is 86%.Rainfall
In Grenagh, in January, during 15.7 rainfall days, 42mm (1.65") of precipitation is typically accumulated. In Grenagh, during the entire year, the rain falls for 198 days and collects up to 586mm (23.07") of precipitation.Snowfall
January through March, November and December are months with snowfall. In January, it is snowing for 0.8 days. Throughout January, 5mm (0.2") of snow is accumulated. In Grenagh, during the entire year, snow falls for 3.8 days and aggregates up to 20mm (0.79") of snow.Daylight
In Grenagh, the average length of the day in January is 8h and 23min.On the first day of January, sunrise is at 8:42 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 8:16 am and sunset at 5:19 pm GMT.
Sunshine
The month with the least sunshine is January, with an average of 4.1h of sunshine.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 hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Grenagh?
What are January temperatures in Grenagh?
What is the average humidity in January in Grenagh?
How much does it rain in Grenagh in January?
How many days does it snow in January in Grenagh?
How many hours of daylight does Grenagh have in January?
When is the sunrise / sunset in January in Grenagh?
What is the month with the least sunshine in Grenagh?
How long on average sun shines in January in Grenagh?
What are the months with the lowest UV index in Grenagh?
How high is the UV index in January in Grenagh?
Average temperature in January
Grenagh, Ireland
- Average high temperature in January: 8.3°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in January: 4.4°C
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in January
Grenagh, Ireland
- Average pressure in January: 1012.6mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in January
Grenagh, Ireland
- Average wind speed in January: 22.5km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest months (with the lowest average wind speed) are June and July (16.1km/h).
Average humidity in January
Grenagh, Ireland
- Average humidity in January: 86%
The months with the highest relative humidity are October and December (87%).
The months with the lowest relative humidity are February, March and April (84%).
Average rainfall in January
Grenagh, Ireland
- Average rainfall in January: 42mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is March (33mm).
Average rainfall days in January
Grenagh, Ireland
- Average rainfall days in January: 15.7 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is February (13.5 days).
Average snowfall in January
Grenagh, Ireland
- Average snowfall in January: 5mm
The month with the highest snowfall is March (6mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Grenagh, Ireland
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is February (1.2 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
Grenagh, Ireland
- Average daylight in January: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in January: 4h and 1min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Grenagh, Ireland
- Average sunshine days in January: 13 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in January
Grenagh, Ireland
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Grenagh, Ireland
- Average cloud cover in January: 60
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in January
Grenagh, Ireland
- Average visibility in January: 9km
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (9km).
