Daily maximum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1931. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 10.6 22.8 14.4 25.0 24.4 31.7 36.7 36.7 36.7 31.7 23.9 8.3 2 16.1 20.6 11.7 30.0 25.0 31.7 38.3 36.7 36.7 32.8 27.2 6.7 3 19.4 18.9 15.0 25.6 28.9 32.8 37.8 36.1 37.2 33.3 28.9 13.9 4 16.7 22.2 17.2 18.3 28.9 32.8 37.2 37.2 37.8 33.9 30.0 19.4 5 14.4 20.6 23.3 19.4 27.2 33.9 35.6 37.2 38.9 31.1 28.3 19.4 6 17.8 20.0 20.6 23.3 23.9 35.0 36.7 36.7 38.9 34.4 28.9 13.9 7 19.4 20.6 15.0 25.0 23.3 36.1 38.3 36.7 36.7 35.6 29.4 8.9 8 15.6 22.2 12.2 22.8 30.0 35.0 38.3 37.8 36.7 35.0 28.3 8.9 9 11.7 15.0 15.6 23.9 25.6 34.4 36.7 37.8 37.8 35.0 30.6 21.1 10 9.4 14.4 19.4 20.6 28.3 33.3 36.7 37.8 37.8 35.6 30.0 21.7 11 10.0 16.7 21.7 25.6 23.3 31.1 37.2 34.4 34.4 35.0 26.1 21.7 12 11.7 16.1 24.4 26.7 26.1 35.6 37.8 34.4 36.1 33.9 28.9 23.9 13 16.1 22.2 21.1 23.3 30.0 36.1 37.2 36.7 36.7 33.9 28.9 22.8 14 13.9 16.1 25.6 27.2 30.6 36.1 35.6 36.7 37.2 33.9 25.6 12.8 15 11.1 9.4 21.7 27.8 33.3 35.6 31.1 33.9 36.7 34.4 29.4 11.7 16 8.9 21.1 16.1 28.3 31.1 36.7 33.3 31.7 36.7 28.9 27.2 10.6 17 11.1 20.6 20.6 28.9 30.0 32.2 29.4 31.1 36.1 26.7 25.6 7.8 18 10.6 17.8 25.6 25.0 26.1 32.8 28.9 37.2 36.1 27.8 24.4 12.2 19 10.0 22.2 25.0 25.6 24.4 35.0 28.9 37.2 35.6 28.9 22.8 8.9 20 11.7 22.8 22.2 27.2 26.7 35.0 34.4 36.7 36.1 30.0 23.3 13.3 21 18.3 19.4 19.4 23.9 30.6 35.0 36.1 38.3 36.1 27.2 25.6 17.2 22 17.2 18.9 22.8 18.9 30.0 35.0 35.6 34.4 36.7 33.3 28.9 21.7 23 17.2 18.9 28.3 16.7 29.4 36.1 35.6 32.2 36.7 30.6 27.8 25.0 24 20.0 12.8 22.2 23.3 31.7 35.0 36.7 32.8 36.7 33.3 25.6 21.7 25 18.3 14.4 20.6 30.0 32.8 36.1 36.7 35.6 37.8 32.2 9.4 21.7 26 16.7 17.2 26.7 27.8 31.7 36.7 36.1 37.2 34.4 31.7 9.4 25.6 27 15.6 14.4 25.0 24.4 31.7 33.9 37.2 36.7 32.8 32.8 12.2 23.3 28 16.1 15.0 12.2 23.3 30.6 35.0 36.1 37.2 31.1 28.9 10.6 21.1 29 18.3 0.0 18.3 19.4 27.8 36.1 35.6 34.4 30.6 25.6 12.2 23.9 30 20.0 0.0 16.7 26.1 26.1 35.6 35.6 36.7 31.1 21.1 12.2 21.1 31 21.7 -17.8 12.2 0.0 27.8 0.0 35.6 36.7 0.0 20.6 0.0 0.0 ----------------------------------------------------------------------------------------- Max 21.7 22.8 28.3 30.0 33.3 36.7 38.3 38.3 38.9 35.6 30.6 25.6 Min 8.9 9.4 11.7 16.7 23.3 31.1 28.9 31.1 30.6 20.6 9.4 0.0 Mean 15.0 18.3 19.8 24.4 28.3 34.6 35.6 35.9 36.0 31.3 24.1 16.5 -----------------------------------------------------------------------------------------