Is this the Winter that won’t stop?
December 21, 2022
Tomorrow, at 8.47am AEDT, Australia will experience its Summer Solstice. Tomorrow, due to the tilt of the Earth’s axis, we will have more daylight hours than on any other day of the year. Tomorrow, by 08.48am AEDT, Winter 2023 is coming ! What? We‘re still waiting for Winter 2022 to pack up and go!!
On 1 December, officially our first day of summer, our temperature at breakfast-time was 10C; and with a minus 6 windchill blowing up the hill from the East, it felt like 4C. The BOM provides observation data for Glen Innes Airport and Tenterfield Park on its website. During the last seven days, Glen Innes dropped to an overnight minimum of – 1.7C (Thursday 15 December), while Tenterfield minimums ranged from 3.2 to 10.9C. Maximum temps have topped out below 24C at both locations. It may not be as chilly as our winter temps, but neither does it feel anything like summer.
And it is having a noticeable effect. The plum tree flowered, was pollinated, set fruit and promptly dropped the lot thanks to a cold blast in October. Most plants in the vegetable garden are really struggling to soak in enough warmth to grow, flower, and set fruit. And cool, windy days mean fewer pollinators are out and about.
Chilly nights have made life tough for parent birds struggling to keep eggs and chicks warm in the nest.
And fewer bugs and grubs mean less tucker for hungry babies. All of which probably helps to explain why it took four attempts by our resident Willie Wagtail parents to complete a successful nesting cycle. After the first three nests and eggs were abandoned, it is just a week since three chicks finally left their nest in the grapevine.
The climate scientists have been telling us for decades to expect more extreme weather events more frequently. Looks like they were on to something.
BOM observations Glen Innes Airport last 72 hours
http://www.bom.gov.au/products/IDN60801/IDN60801.94588.shtml
BOM observations Glen Innes Airport monthly
http://www.bom.gov.au/climate/dwo/IDCJDW2173.latest.shtml
And some interesting reading on solstices from National Geographic , including cultural aspects:
https://education.nationalgeographic.org/resource/solstice