Halley_6a 12Z temperature
2018    -4.2    -9.9   -12.0   -19.1   -21.3   -21.6   -27.9   -27.9   -25.2   -23.6    -7.7    -3.9
2019    -4.2    -9.4   -17.0   -22.1   -21.3   -31.2   -30.3   -31.0   -30.2   -21.4    -8.0    -2.5
2020    -2.7   -11.0   -18.1   -18.4   -27.5   -27.8   -31.1   -34.5   -25.5   -22.4    -7.8    -4.3
2021    -6.6    -9.8   -11.7   -20.5   -21.3   -34.5   -33.8   -33.2   -24.4   -18.6    -9.5    -4.8
2022    -4.1    -8.8   -16.6   -20.3   -22.0   -24.2   -28.1   -35.2   -25.8   -15.9   -11.5    -5.2
2023    -5.3   -12.3   -14.8   -12.7   -25.2   -21.6   -22.8   -26.0   -22.4   -13.8    -6.6    -4.6
2024    -5.2    -8.2   -16.7   -18.9       -       -       -       -       -       -       -       -