Optimus Prime It's even more extreme if you look at the second half of the month:
2023 7.3
2022 7.1
2021 8.3
2020 6.6
2019 9 (highest ever recorded)
Notably in 2023, 2021 and 2019 the second half of February was warmer than March. 2020 wasn't far off either.
Could have happened in 2022 as well if March hadn't been so warm that year. A truly remarkable run of warm second halves of February.