Halley_6a 18Z temperature
2018    -2.9    -8.6   -10.9   -18.3   -21.0   -21.2   -28.1   -27.9   -25.2   -21.6    -6.7    -3.2
2019    -3.0    -8.0   -15.8   -22.3   -20.9   -31.2   -29.5   -31.4   -29.3   -20.0    -7.0    -1.6
2020    -1.9    -9.2   -16.5   -18.3   -27.9   -28.0   -32.0   -34.5   -24.2   -20.3    -6.6    -2.9
2021    -4.6    -8.3   -11.0   -20.1   -21.8   -36.0   -33.3   -32.7   -23.8   -17.5    -8.2    -3.9
2022    -2.9    -7.8   -15.7   -20.5   -22.1   -23.8   -27.7   -35.7   -25.4   -15.0   -10.3    -4.0
2023    -3.8   -10.3   -13.3   -12.8   -24.7   -21.6   -23.6   -25.7   -21.8   -13.2    -6.1    -3.3
2024    -3.9    -6.3   -15.6       -       -       -       -       -       -       -       -       -