Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Castlewarren registers an average high-temperature of a still frosty 7.5°C (45.5°F) at the commencement of December, closely related to the preceding month. December introduces a small decrease to a nighttime average of 2.5°C (36.5°F).Humidity
The months with the highest humidity in Castlewarren are November and December, with an average relative humidity of 92%.Rainfall
In Castlewarren, in December, during 17.3 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, in Castlewarren, there are 217.1 rainfall days, and 563mm (22.17") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Castlewarren. In December, it is snowing for 1.1 days. Throughout December, 11mm (0.43") of snow is accumulated. Throughout the year, in Castlewarren, there are 6.7 snowfall days, and 48mm (1.89") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 42min of daylight.On the first day of December, sunrise is at 8:18 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 4:23 pm GMT.
Sunshine
In December, the average sunshine in Castlewarren is 4h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Castlewarren. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Castlewarren in December?
What are the most humid months in Castlewarren?
What is the average humidity in December in Castlewarren?
How much does it rain in Castlewarren in December?
How much does it snow in Castlewarren in December?
What is the month with the shortest days in Castlewarren?
What is the average length of the day in December in Castlewarren?
When are sunrise and sunset in December in Castlewarren?
How long on average sun shines in December in Castlewarren?
What is the month with the lowest UV index in Castlewarren?
What is the UV index intensity in December in Castlewarren?
Average temperature in December
Castlewarren, Ireland
- Average high temperature in December: 7.5°C
The warmest month (with the highest average high temperature) is July (17.9°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in December: 2.5°C
The month with the highest average low temperature is July (10.6°C).
The coldest months (with the lowest average low temperature) are January, February and March (1.8°C).
Average pressure in December
Castlewarren, Ireland
- Average pressure in December: 1011.6mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.6mbar).
Average wind speed in December
Castlewarren, Ireland
- Average wind speed in December: 18.5km/h
The windiest month (with the highest average wind speed) is February (18.6km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in December
Castlewarren, Ireland
- Average humidity in December: 92%
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 December
Castlewarren, Ireland
- Average rainfall in December: 59mm
The wettest month (with the highest rainfall) is November (70mm).
The driest months (with the least rainfall) are March, May and September (37mm).
Average rainfall days in December
Castlewarren, Ireland
- Average rainfall days in December: 17.3 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (15.6 days).
Average snowfall in December
Castlewarren, Ireland
- Average snowfall in December: 11mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Castlewarren, Ireland
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Castlewarren, Ireland
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 4h and 0min
The months with the most sunshine are April and May (Average sunshine: 6h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Castlewarren, Ireland
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is November (11.1 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in December
Castlewarren, Ireland
- Average UV index in December: 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 December
Castlewarren, Ireland
- Average cloud cover in December: 61
The month with the most cloud cover is July (Cloud cover 69).
The months with the least cloud cover are March and April (Cloud cover 59).
Average visibility in December
Castlewarren, Ireland
- Average visibility in December: 8km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (8km).
The months with the lowest visibility are July, August and September (7km).
