Daily maximum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1939. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 20.6 19.4 12.8 31.1 28.3 31.1 35.0 32.8 40.6 27.2 27.8 26.1 2 23.9 16.1 12.8 34.4 28.9 27.8 36.1 32.8 40.6 28.9 26.1 18.9 3 24.4 10.0 19.4 30.6 27.2 29.4 36.1 36.7 39.4 32.2 21.7 23.9 4 21.7 15.0 27.2 31.1 26.7 26.7 37.2 35.0 37.2 32.2 16.7 23.3 5 19.4 15.6 23.9 28.9 27.8 28.3 37.8 32.2 37.8 34.4 18.9 29.4 6 21.7 20.0 20.6 19.4 28.9 31.7 37.2 35.0 36.7 35.0 23.3 26.7 7 18.9 23.3 15.6 15.6 28.3 31.7 37.8 36.7 36.1 34.4 23.9 26.7 8 21.1 22.2 24.4 26.7 28.3 32.2 40.0 34.4 35.6 33.3 26.7 22.8 9 20.0 26.7 26.7 30.0 30.0 33.9 38.3 35.0 34.4 35.0 26.7 26.1 10 17.8 24.4 28.9 30.6 34.4 35.6 35.0 35.0 31.1 27.8 23.9 26.7 11 15.6 12.8 28.3 27.8 34.4 34.4 32.2 36.1 32.2 21.1 11.7 28.3 12 8.9 18.9 26.7 22.8 33.9 33.9 26.7 36.7 35.6 23.3 20.6 26.1 13 12.8 22.8 25.6 24.4 30.6 33.3 32.8 37.8 35.0 26.7 15.6 17.2 14 14.4 19.4 26.7 26.7 26.7 35.6 34.4 37.8 36.1 28.9 15.0 18.3 15 12.2 21.1 24.4 27.8 30.6 34.4 36.7 36.7 35.6 25.6 13.9 19.4 16 11.7 21.1 18.3 25.0 28.3 35.6 36.7 37.8 35.0 28.3 15.6 23.9 17 13.9 19.4 20.6 20.6 28.9 34.4 35.6 36.7 34.4 28.3 16.7 22.8 18 15.0 8.3 23.3 18.9 32.8 33.9 35.6 37.2 33.9 28.9 17.8 22.8 19 18.9 19.4 25.6 25.0 32.2 31.1 36.7 36.7 34.4 29.4 22.8 20.6 20 21.7 20.0 24.4 32.2 33.3 30.6 37.8 36.1 35.6 31.1 20.0 19.4 21 22.2 5.6 27.2 29.4 33.9 32.8 38.3 33.3 35.0 32.2 20.6 23.9 22 19.4 11.7 26.7 26.7 34.4 31.1 38.3 35.0 35.0 34.4 21.7 18.3 23 12.2 15.6 23.9 27.8 33.3 33.3 36.7 34.4 35.0 31.1 20.6 18.9 24 12.8 16.1 23.3 27.8 32.2 33.9 36.7 35.6 35.6 27.8 19.4 13.9 25 14.4 16.7 25.6 31.1 32.2 33.9 36.7 36.1 35.0 28.3 16.7 5.6 26 12.2 11.7 28.9 28.9 32.8 34.4 36.7 36.7 35.0 30.6 11.1 6.7 27 11.1 18.3 32.2 27.8 34.4 34.4 37.2 34.4 33.9 32.2 11.7 6.1 28 15.0 15.6 28.3 28.9 32.2 35.0 38.9 35.0 35.6 27.8 13.3 3.9 29 14.4 0.0 25.0 27.2 31.7 36.1 33.9 36.1 36.7 25.0 11.1 6.1 30 18.9 0.0 17.2 27.2 30.6 33.9 36.1 37.2 28.9 22.2 15.0 14.4 31 22.2 0.0 29.4 0.0 30.0 0.0 36.1 38.9 0.0 23.9 0.0 21.1 ----------------------------------------------------------------------------------------- Max 24.4 26.7 32.2 34.4 34.4 36.1 40.0 38.9 40.6 35.0 27.8 29.4 Min 8.9 5.6 12.8 15.6 26.7 26.7 26.7 32.2 28.9 21.1 11.1 3.9 Mean 17.1 17.4 24.0 27.1 30.9 32.8 36.2 35.7 35.4 29.3 18.9 19.6 -----------------------------------------------------------------------------------------