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
Weather in December
Temperature
December's onset records an average high-temperature of a still refreshing 14.7°C (58.5°F), a near match to November's 13°C (55.4°F). With a barely noticeable fluctuation in temperature, Glenavy reaches an average low of 10.5°C (50.9°F) during the December nights.Humidity
The months with the highest humidity in Glenavy are March and December, with an average relative humidity of 80%.Rainfall
In Glenavy, during December, the rain falls for 14 days and regularly aggregates up to 34mm (1.34") of precipitation. In Glenavy, during the entire year, the rain falls for 150.6 days and collects up to 357mm (14.06") of precipitation.Snowfall
January through July, September through December are months without snowfall in Glenavy.Daylight
December has the longest days of the year in Glenavy, with an average of 15h and 30min of daylight.On the first day of December in Glenavy, sunrise is at 5:44 am and sunset at 9:04 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 9:24 pm NZDT.
Sunshine
With an average of 10.6h of sunshine, December has the most sunshine of the year.UV index
The months with the highest UV index in Glenavy are January through March, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 in December translates into these instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the average December temperature in Glenavy?
What are the most humid months in Glenavy?
What is the average humidity in December in Glenavy?
How much does it rain in Glenavy in December?
When it does not snow in Glenavy?
When are the longest days in Glenavy?
How many hours of daylight does Glenavy have in December?
What time are sunrise and sunset in December in Glenavy?
What month has the most sunshine in Glenavy?
How many hours of sunshine does Glenavy have in December?
What are the months with the highest UV index in Glenavy?
How high is the UV index in December in Glenavy?
Average temperature in December
Glenavy, New Zealand
- Average high temperature in December: 14.7°C
The warmest month (with the highest average high temperature) is February (15.8°C).
The month with the lowest average high temperature is July (9.2°C).
- Average low temperature in December: 10.5°C
The month with the highest average low temperature is February (11.7°C).
The coldest month (with the lowest average low temperature) is July (6.3°C).
Average pressure in December
Glenavy, New Zealand
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is March (1016.2mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in December
Glenavy, New Zealand
- Average wind speed in December: 19.6km/h
The windiest month (with the highest average wind speed) is June (21.8km/h).
The calmest month (with the lowest average wind speed) is February (18.4km/h).
Average humidity in December
Glenavy, New Zealand
- Average humidity in December: 80%
The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Glenavy, New Zealand
- Average rainfall in December: 34mm
The wettest month (with the highest rainfall) is February (43mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in December
Glenavy, New Zealand
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is October (15.6 days).
The month with the least rainy days is March (11.1 days).
Average snowfall in December
Glenavy, New Zealand
- Average snowfall in December: 0mm
The month with the highest snowfall is August (3mm).
The months with the least snowfall are January, February, March, April, May, June, July, September, October, November and December (0mm).
Average snowfall days in December
Glenavy, New Zealand
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is August (0.7 days).
The months with the least snowfall days are January, February, March, April, May, October and December (0 days).
Average daylight in December /
Average sunshine in December
Glenavy, New Zealand
- Average daylight in December: 15h and 3min
The month with the longest days is December (Average daylight: 15h and 30min).
The month with the shortest days is June (Average daylight: 8h and 48min).
- Average sunshine in December: 10h and 4min
The month with the most sunshine is December (Average sunshine: 10h and 36min).
The month with the least sunshine is June (Average sunshine: 4h and 30min).
Average sunshine days in December
Glenavy, New Zealand
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is March (17.9 days).
The month with the least sunshine days is January (13.4 days).
Average UV index in December
Glenavy, New Zealand
- Average UV index in December: 4
The months with the highest UV index are January, February, March, November and December (UV index 4).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 3).
Average cloud cover in December
Glenavy, New Zealand
- Average cloud cover in December: 44
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is March (Cloud cover 40).
Average visibility in December
Glenavy, New Zealand
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Glenavy, New Zealand
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