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
The coldest month is January, with an average high-temperature of 6.6°C (43.9°F) and an average low-temperature of 1.9°C (35.4°F).Humidity
In January, the average relative humidity in Johnstown, Ireland, is 91%.Rainfall
January and October are months with the least rain when the rain falls for 10.5 days and typically aggregates up to 13mm (0.51") of rain.Snowfall
January through April, November and December are months with snowfall. The months with the most snowfall in Johnstown, Ireland, are January and February, with an average 15mm (0.59") of accumulated snow.Daylight
In Johnstown, the average length of the day in January is 8h and 11min.On the first day of the month, sunrise is at 8:40 am and sunset at 4:18 pm. On the last day of January, in Johnstown, sunrise is at 8:12 am and sunset at 5:06 pm GMT.
Sunshine
In January, the average sunshine in Johnstown is 3.8h.UV index
The months with the lowest UV index in Johnstown are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In January, the UV index of 2 transforms into the following advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Johnstown?
How cold is it in Johnstown in January?
What is the average humidity in January in Johnstown?
What is the driest month in Johnstown?
How much does it rain in Johnstown in January?
What is the snowiest month in Johnstown?
How much does it snow in Johnstown in January?
What is the average length of the day in January in Johnstown?
When is the sunrise / sunset in January in Johnstown?
How long on average sun shines in January in Johnstown?
What is the month with the lowest UV index in Johnstown?
How high is the UV index in January in Johnstown?
Average temperature in January
Johnstown, Ireland
- Average high temperature in January: 6.6°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (6.6°C).
- Average low temperature in January: 1.9°C
The month with the highest average low temperature is July (10.7°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in January
Johnstown, Ireland
- Average pressure in January: 1011.6mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in January
Johnstown, Ireland
- Average wind speed in January: 19.7km/h
The windiest month (with the highest average wind speed) is January (19.7km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in January
Johnstown, Ireland
- Average humidity in January: 91%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and May (86%).
Average rainfall in January
Johnstown, Ireland
- Average rainfall in January: 13mm
The wettest month (with the highest rainfall) is August (26mm).
The driest months (with the least rainfall) are January and October (13mm).
Average rainfall days in January
Johnstown, Ireland
- Average rainfall days in January: 10.5 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (9.8 days).
Average snowfall in January
Johnstown, Ireland
- Average snowfall in January: 15mm
The months with the highest snowfall are January and February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in January
Johnstown, Ireland
- Average snowfall days in January: 2.3 days
The month with the highest number of snowfall days is February (2.7 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
Johnstown, 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 April (Average sunshine: 6h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in January
Johnstown, Ireland
- Average sunshine days in January: 15.7 days
The month with the most sunshine days is December (15.8 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in January
Johnstown, Ireland
- Average UV index in January: 2
The months with the highest UV index are May, 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
Johnstown, Ireland
- Average cloud cover in January: 63
The month with the most cloud cover is July (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 58).
Average visibility in January
Johnstown, Ireland
- Average visibility in January: 9km
The months with the highest visibility are January, February, March and December (9km).
The month with the lowest visibility is July (7km).
