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, known for its average high temperature of 7°C (44.6°F) and an average low temperature of 1.8°C (35.2°F), is the coldest month.Humidity
In January, the average relative humidity is 91%.Rainfall
In Hartstown, in January, it is raining for 12.9 days, with typically 19mm (0.75") of accumulated precipitation. Throughout the year, there are 167.6 rainfall days, and 283mm (11.14") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Hartstown, in January, snow falls for 1.9 days, with typically accumulated 10mm (0.39") of snow. In Hartstown, during the entire year, snow falls for 7.4 days and aggregates up to 38mm (1.5") of snow.Daylight
In Hartstown, the average length of the day in January is 8h and 10min.On the first day of the month, sunrise is at 8:41 am and sunset at 4:17 pm. On the last day of January, sunrise is at 8:12 am and sunset at 5:05 pm GMT.
Sunshine
The average sunshine in January in Hartstown is 3.9h.UV index
The months with the lowest UV index in Hartstown are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Hartstown?
Is it cold in Hartstown during January?
What is the average humidity in January in Hartstown?
How much does it rain in Hartstown in January?
How many days does it snow in January in Hartstown?
What is the average length of the day in January in Hartstown?
When are sunrise and sunset in January in Hartstown?
How many hours of sunshine does Hartstown have in January?
What are the months with the lowest UV index in Hartstown?
What is the UV index reading in January in Hartstown?
Average temperature in January
Hartstown, Ireland
- Average high temperature in January: 7°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 (7°C).
- Average low temperature in January: 1.8°C
The month with the highest average low temperature is July (10.6°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in January
Hartstown, Ireland
- Average pressure in January: 1011.9mbar
The month with the highest atmospheric pressure is May (1016.1mbar).
The month with the lowest atmospheric pressure is November (1008.5mbar).
Average wind speed in January
Hartstown, Ireland
- Average wind speed in January: 18.8km/h
The windiest month (with the highest average wind speed) is February (19km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in January
Hartstown, Ireland
- Average humidity in January: 91%
The months with the highest relative humidity are November and December (92%).
The month with the lowest relative humidity is April (86%).
Average rainfall in January
Hartstown, Ireland
- Average rainfall in January: 19mm
The wettest month (with the highest rainfall) is November (41mm).
The driest month (with the least rainfall) is March (16mm).
Average rainfall days in January
Hartstown, Ireland
- Average rainfall days in January: 12.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is September (11.3 days).
Average snowfall in January
Hartstown, Ireland
- Average snowfall in January: 10mm
The month with the highest snowfall is November (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Hartstown, Ireland
- Average snowfall days in January: 1.9 days
The month with the highest number of snowfall days is February (2.1 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
Hartstown, Ireland
- Average daylight in January: 8h and 1min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is May (Average sunshine: 6h and 24min).
The months with the least sunshine are February, November and December (Average sunshine: 3h and 48min).
Average sunshine days in January
Hartstown, Ireland
- Average sunshine days in January: 13.3 days
The month with the most sunshine days is November (13.9 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in January
Hartstown, Ireland
- Average UV index in January: 2
The months with the highest UV index are June and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Hartstown, Ireland
- Average cloud cover in January: 61
The month with the most cloud cover is July (Cloud cover 68).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in January
Hartstown, Ireland
- Average visibility in January: 8km
The months with the highest visibility are February, March and December (9km).
The months with the lowest visibility are July, August and September (7km).
