We keep getting asked if this is Aotearoa/New Zealand's "worst summer ever", from a climate perspective, of course.

There's no easy way of answering that question, but we've scoured the record books & are pleased to bring you these eye-opening stats...

🧵 a tale of two islands Whangārei has recorded 24 days of rain this summer, which makes it the most persistently rainy summer (so far) in over three decades.

It's official, 2022 was Aotearoa New Zealand’s warmest year on record, again 🤒

Mother Nature is running a fever & it's not getting better.

niwa.co.nz/climate/summar…

🧵 on the 22 things you should know about 2022, through the eyes of @niwa_nz's climate scientists The year 2022 finished with an average temperature of 13.76°C in New Zealand.

This was 1.15°C above average & surpassed 2021 to become the country's new warmest year on record.

New Zealand's annual average temperature has increased by about 1.1°C over the past century 📈

A cyclone thread 🧵

Satellite photo from earlier today shows double trouble.

TC Dovi & its discernable eye at the top.

Well ahead of #CycloneDovi is a plume of tropical moisture.

Collectively, this will result in high chances for:

🌧️ heavy rain
🌬️ strong wind
🌊 large waves As for rain…

These maps show the daily odds of receiving heavy rain.

Red (🔴) is where our modelling predicts a high chance of more than 50 mm of rain.

Some locations will see more than a month's worth of rain in just a few days. This obviously raises flooding concerns.

The highest concentration of sulfur dioxide (SO2) in the world right now is over the Pacific 📈

This is associated with the eruption of the Hunga-Tonga-Hunga-Ha'apai volcano 🌋

🧵 on what this means... Some of the SO2 has been wrapped into Cyclone Cody, east of New Zealand 🌀

This is happening in the troposphere, the part of the atmosphere where we live.

Here, the emissions from volcanic eruptions are typically washed away quickly.

It's official, 2021 was Aotearoa New Zealand’s warmest year on record 🌡️

The trend is not our friend — it's our foe.

niwa.co.nz/climate/summar…

🧵 on the 21 things you should know about 2021, through the eyes of @niwa_nz's climate scientists @niwa_nz The year 2021 finished with an average temperature of 13.56°C in New Zealand.

This was 0.95°C above average and surpassed 2016 to become the country's new warmest year on record.

New Zealand's average annual temperature has increased by about 1°C over the past 100 years 📈