SUMMARY OF THE METEOROLOGICAL READINGS AT DURHAM UNIVERSITY OBSERVATORY December 2022 Temperatures (all temperatures in degrees Celsuis; all averages 1991-2020) Mean daily maximum: 6.2     Difference from average: -0.9 Mean daily minimum: 0.5      Difference from average: -0.9 Mean air temperature: 3.4      Difference from average: -0.9 Absolute maximum: 13.2 (19th) Absolute minimum: -6.3 (13th) Mean grass minimum: -1.4    … Continue reading December 2022