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
As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a cold 4.7°C (40.5°F) to a freezing cold -2.5°C (27.5°F). During December, the temperature is averaged to a low of -8.1°C (17.4°F) at night.Humidity
The average relative humidity in December is 87%.Rainfall
In December, in Leitrim, the rain falls for 7.7 days. Throughout December, 50mm (1.97") of precipitation is accumulated. In Leitrim, during the entire year, the rain falls for 145.2 days and collects up to 616mm (24.25") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Leitrim, in December, snow falls for 14.5 days, with typically accumulated 142mm (5.59") of snow. In Leitrim, during the entire year, snow falls for 74.1 days and aggregates up to 750mm (29.53") of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:22 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:29 pm EST.
Sunshine
The average sunshine in December is 3.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, an average UV index of 1 transforms into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Always opt for UVA and UVB-resistant sunglasses on radiant days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Leitrim have in December?
What is the month with the lowest UV index in Leitrim?
What is the UV index reading in December?
Average temperature in December
Leitrim, Canada
- Average high temperature in December: -2.5°C
The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-6.1°C).
- Average low temperature in December: -8.1°C
The month with the highest average low temperature is July (14.8°C).
The coldest month (with the lowest average low temperature) is January (-14°C).
Average pressure in December
Leitrim, Canada
- Average pressure in December: 1017.4mbar
The month with the highest atmospheric pressure is March (1018mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in December
Leitrim, Canada
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is April (14.2km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).
Average humidity in December
Leitrim, Canada
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
Leitrim, Canada
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is October (65mm).
The driest month (with the least rainfall) is November (41mm).
Average rainfall days in December
Leitrim, Canada
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in December
Leitrim, Canada
- Average snowfall in December: 142mm
The month with the highest snowfall is February (189mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Leitrim, Canada
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is February (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Leitrim, Canada
- Average daylight in December: 8h and 5min
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 December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in December
Leitrim, Canada
- Average sunshine days in December: 12.6 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in December
Leitrim, Canada
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Leitrim, Canada
- Average cloud cover in December: 65
The months with the most cloud cover are January and February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Leitrim, Canada
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, October and November (9km).
The months with the lowest visibility are January and February (7km).
