Firn temperature record at Byrd Station, 1959 (all temperatures are in negative degrees Celsius) Data source: John Pirrit and George A. Doumani IGC Antarctic Glaciological Data, Field Work 1959 Report 968-2, January 1961 Ohio State University Research Foundation Depth (cm.) 2 m Air 0 50 100 200 400 800 1600 1959 GMT 1/2 1825 17.83 10.1 21.59 23.22 26.01 28.8 28.88 28.3 1/24 1745 19.39 13.31 21.94 23.22 26.02 28.83 28.86 28.24 1/26 1740 23.5 16.59 20.72 22.51 24.97 28.32 28.42 28.09 1/28 1640 25.0 15.84 21.67 23.08 25.84 28.68 28.88 28.28 1/30 1645 15.61 12.66 21.98 23.21 25.79 28.64 28.98 28.39 2/1 1745 15.39 7.78 21.79 23.22 25.81 28.67 28.98 28.41 2/3 1715 18.67 10.58 23.49 23.08 25.68 28.57 29.03 28.39 2/5 1615 16.11 11.18 21.48 22.98 25.6 28.49 28.99 28.39 2/7 1630 11.72 9.99 21.26 22.8 25.48 28.39 28.94 28.3 2/9 1630 13.61 10.62 21.1 22.95 25.6 28.38 29.15 28.42 2/11 1630 19.56 16.1 20.68 22.59 26.5 28.41 29.12 28.41 2/13 1630 21.39 18.2 20.24 22.19 25.21 28.19 28.98 28.38 2/15 1915 17.78 14.77 20.42 21.95 24.91 27.93 28.76 28.15 2/17 1650 17.33 16.0 20.59 22.02 24.86 27.9 28.78 28.19 2/19 1825 24.56 18.99 21.52 22.63 24.79 27.96 28.8 28.19 2/21 1950 13.5 11.4 20.85 22.03 24.63 27.81 28.8 28.16 2/23 1945 12.83 12.62 20.95 22.06 24.61 27.75 28.76 28.22 2/25 1725 20.9 18.3 20.81 22.12 24.64 27.79 28.92 28.19 2/27 1710 28.8 25.34 20.67 21.98 24.49 27.42 28.61 28.18 3/1 1955 27.6 24.41 21.05 21.93 24.44 27.66 28.69 28.19 3/4 1830 14.4 16.23 21.95 22.24 24.6 27.4 28.69 28.19 3/6 1855 16.0 17.92 22.4 22.59 24.38 27.37 28.68 28.19 3/8 1900 24.7 22.08 22.59 22.82 24.42 23.33 28.72 28.22 3/10 1635 31.1 27.98 22.59 23.1 24.58 27.39 28.92 28.49 3/12 1615 23.2 22.56 23.22 23.78 25.0 27.57 29.08 28.59 3/14 1630 20.7 21.69 22.98 23.16 24.5 27.17 28.7 28.24 3/16 1630 32.22 29.82 23.1 23.27 24.31 27.08 28.62 28.2 3/18 1630 24.44 22.28 22.58 22.92 24.42 27.03 28.5 28.21 3/21 1800 16.28 20.0 24.2 23.95 24.71 27.12 28.71 28.23 3/23 1615 30.8 24.98 24.2 23.98 24.6 26.92 28.52 28.18 3/26 1630 24.4 28.41 24.4 24.32 25.97 27.0 28.62 28.28 3/28 1900 26.4 27.08 24.48 24.01 24.59 26.38 28.08 27.7 3/30 1715 27.22 29.19 25.2 24.59 24.92 26.81 28.44 28.03 4/1 1815 33.33 29.49 25.39 24.8 24.95 26.64 28.35 28.08 4/3 1745 18.33 23.41 25.65 25.18 25.2 26.85 28.52 28.21 4/5 1800 26.67 27.51 25.49 25.0 25.05 26.4 28.08 27.78 4/7 1800 20.6 23.92 25.48 25.23 25.18 27.74 28.39 28.18 4/9 2030 17.8 21.18 25.18 25.02 25.41 26.48 28.28 28.21 4/11 1830 17.8 21.44 24.98 25.02 25.34 26.42 28.02 27.8 4/13 1730 18.61 22.38 24.85 25.18 25.38 26.55 28.12 27.9 4/15 1730 14.28 21.39 24.61 25.2 25.7 26.8 28.41 28.0 4/17 1730 11.11 21.2 24.8 25.15 25.72 26.81 28.48 28.24 4/19 1800 20.83 20.75 24.72 25.12 25.67 26.81 28.4 28.2 4/21 1815 35.0 24.42 24.6 25.17 25.8 26.98 28.52 28.38 4/23 1830 41.1 28.02 24.42 24.98 25.88 26.84 28.44 28.28 4/25 1900 31.1 30.78 24.77 24.93 25.68 26.81 28.4 28.32 4/27 1730 18.33 26.35 25.25 25.1 25.63 26.61 28.4 28.2 4/29 1730 36.94 24.41 25.62 25.35 25.63 26.81 28.38 28.22 5/1 1830 40.0 29.08 25.65 25.46 25.68 26.83 28.36 28.21 5/3 1900 52.78 36.42 25.88 25.55 25.81 26.84 28.38 28.25 5/5 1730 40.0 39.12 25.66 24.49 25.74 26.82 28.35 28.21 5/7 1900 23.9 24.88 25.68 25.89 25.67 26.81 28.4 28.24 5/10 2200 30.6 29.64 28.99 27.38 26.39 27.42 28.92 28.66 5/12 2300 17.78 27.45 28.41 27.42 26.22 26.89 28.35 28.35 5/14 2115 32.78 28.6 28.25 27.45 26.38 26.81 28.26 28.23 5/16 2130 38.89 32.9 28.02 27.52 26.48 26.82 28.2 28.21 5/18 1845 42.2 36.3 28.18 27.6 26.64 26.97 28.38 28.4 5/20 1900 40.0 33.69 28.2 27.58 26.88 26.82 28.21 28.32 5/23 2230 27.8 25.81 29.22 28.0 26.91 26.98 28.24 28.4 5/25 1930 21.67 24.79 29.2 28.25 27.0 27.0 28.26 28.36 5/27 2030 45.56 26.36 28.7 28.3 27.18 27.01 28.32 28.33 5/29 1915 46.49 31.9 28.42 28.21 27.25 27.12 28.35 28.4 6/1 0030 32.78 33.73 28.4 28.09 27.31 27.08 28.25 28.35 6/3 1830 37.8 33.56 28.65 28.22 27.4 27.18 28.31 28.28 6/5 1830 28.9 25.18 28.44 28.2 27.39 27.18 28.25 28.31 6/7 2030 23.9 31.04 29.4 28.26 27.5 27.21 28.21 28.4 6/9 1900 41.67 33.0 29.23 28.21 27.41 27.15 28.06 28.26 6/11 1700 38.89 34.19 29.46 28.41 27.6 27.28 28.23 28.38 6/13 1800 34.44 33.58 29.59 28.43 27.58 27.26 28.2 28.33 6/15 2100 38.9 35.0 29.98 28.72 27.8 27.4 28.28 28.41 6/17 1900 27.2 33.0 31.2 29.98 28.88 28.56 29.38 29.44 6/19 1830 34.4 31.81 30.0 28.7 27.78 27.39 28.18 28.34 6/21 2330 40.5 32.29 30.04 28.78 27.77 27.41 28.21 28.33 6/23 1800 33.33 33.2 30.04 28.78 27.75 27.39 28.1 28.28 6/25 2100 27.89 33.23 30.33 29.0 28.01 27.51 28.21 28.4 6/28 1930 48.06 32.19 30.71 29.4 28.41 27.81 28.48 28.69 6/30 1900 23.9 33.0 30.35 29.14 28.11 27.62 28.31 28.59 7/2 2000 22.8 33.12 30.42 29.22 28.16 27.63 28.3 28.48 7/4 2100 29.4 30.4 30.38 29.3 28.22 27.6 28.08 28.28 7/6 2030 16.67 30.69 31.8 29.19 28.2 27.54 28.01 28.22 7/8 1830 19.89 29.44 30.02 29.21 28.3 27.79 28.02 28.23 7/10 1830 32.78 28.62 30.02 29.12 28.3 27.56 28.08 28.28 7/12 1900 32.28 29.77 29.82 29.2 28.39 27.65 28.01 28.23 7/14 1900 32.8 30.31 29.88 29.21 28.58 27.79 28.1 28.4 7/16 1830 50.6 32.16 29.62 29.0 28.38 27.86 28.0 28.21 7/18 2030 38.3 34.22 29.8 29.1 28.42 27.78 28.07 28.38 7/20 1900 54.44 35.52 30.19 29.1 28.55 27.82 28.02 28.31 7/22 1800 47.22 37.08 30.48 29.16 28.42 27.84 28.03 28.22 7/24 1800 32.11 38.15 30.48 29.4 28.52 27.85 28.12 28.35 7/27 1900 30.0 37.18 31.62 29.6 28.51 27.9 28.0 28.22 7/30 2130 36.1 31.38 31.64 29.6 28.38 27.58 27.74 28.0 8/1 2130 40.0 32.33 29.98 29.2 28.54 27.84 28.02 28.2 8/3 1800 42.56 34.0 31.52 29.99 28.68 27.92 27.98 28.22 8/5 1800 48.89 36.01 31.6 30.12 28.91 28.0 28.1 28.29 8/7 1800 35.5 37.4 31.65 30.02 28.81 27.92 27.99 28.21 8/9 1800 56.44 38.01 32.0 30.19 28.98 28.0 28.0 28.22 8/11 1830 47.8 38.18 31.78 30.2 28.88 27.99 27.9 28.2 8/13 1830 46.7 39.98 32.24 30.28 28.96 28.0 27.98 28.2 8/17 1830 28.3 35.1 33.5 31.0 29.22 28.22 28.08 28.28 8/19 1800 41.06 34.14 33.43 31.09 29.28 28.21 28.01 28.22 8/21 1800 30.44 34.92 33.19 31.19 29.32 28.2 28.0 28.21 8/23 1930 38.5 35.01 31.08 31.2 29.43 28.2 28.01 28.21 8/26 1800 40.0 34.12 33.42 31.08 29.3 28.52 28.2 28.24 8/28 1800 33.9 33.01 31.98 31.21 29.48 28.28 28.22 28.21 8/31 1800 42.67 34.14 32.98 31.51 29.92 28.57 28.25 28.4 9/2 1800 34.83 34.69 32.71 31.29 29.78 28.4 27.98 28.22 9/4 1800 35.56 34.11 32.66 31.32 29.91 28.41 28.0 28.2 9/6 1800 21.0 33.81 32.73 31.32 29.82 28.43 28.0 28.21 9/9 1800 31.7 34.72 32.82 34.42 29.9 28.55 28.04 28.35 9/11 1800 32.2 32.4 32.56 31.39 30.0 28.62 28.0 28.19 9/13 2000 38.9 34.44 32.76 31.26 29.72 28.35 27.98 28.21 10/3 1800 41.22 36.55 32.59 31.21 30.17 28.91 28.0 28.18 10/6 1800 32.61 37.2 33.0 31.49 39.25 28.99 28.1 28.23 10/8 1800 43.89 37.08 33.15 31.58 30.21 28.92 28.02 28.12 10/27 2000 27.78 33.92 32.96 32.06 30.72 29.15 28.16 28.18