Daily maximum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1928. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 -6.1 14.4 24.4 29.4 32.2 35.0 36.7 35.6 30.0 34.4 26.1 18.9 2 -1.1 14.4 17.8 25.6 31.1 31.1 37.8 36.1 35.6 32.8 16.7 23.9 3 -0.6 17.2 18.3 25.6 30.6 30.0 37.8 35.0 35.0 32.8 15.6 18.3 4 10.6 20.6 26.7 30.6 23.3 32.2 38.9 34.4 32.8 35.0 17.8 26.1 5 14.4 21.1 20.6 25.6 25.0 25.6 36.7 36.7 32.8 35.0 13.3 15.0 6 12.8 23.9 21.1 23.9 27.2 31.1 36.7 36.1 32.8 33.9 17.8 9.4 7 15.6 21.7 20.6 18.9 30.0 33.9 31.7 36.7 33.3 33.9 27.8 13.3 8 15.6 20.0 23.9 20.0 34.4 33.3 33.3 35.0 30.0 33.3 23.3 12.8 9 19.4 16.7 25.6 6.1 33.9 33.9 36.7 37.2 31.1 32.8 21.7 12.2 10 22.8 13.9 24.4 14.4 33.9 34.4 36.1 38.3 32.2 32.2 20.6 10.6 11 23.3 14.4 29.4 30.0 30.0 34.4 36.7 37.2 33.3 33.3 23.9 8.3 12 24.4 13.9 31.7 25.6 30.6 31.7 37.8 38.9 34.4 33.9 22.2 12.2 13 25.6 20.6 28.3 31.7 29.4 30.6 38.9 37.2 34.4 33.9 21.7 18.3 14 25.6 16.7 27.2 30.0 27.2 33.3 38.9 36.7 35.0 33.3 22.2 20.6 15 26.1 13.3 26.1 15.0 30.0 29.4 38.9 36.7 34.4 32.2 24.4 16.7 16 24.4 10.0 25.6 24.4 31.1 32.2 37.8 37.2 35.6 27.8 27.8 21.7 17 25.6 16.7 15.0 30.6 31.7 34.4 36.7 37.2 35.0 23.9 20.0 21.1 18 22.2 16.7 18.3 30.0 30.6 34.4 37.2 36.7 32.2 28.9 17.8 12.8 19 19.4 19.4 17.2 29.4 32.2 34.4 37.2 35.0 31.1 31.1 13.9 11.7 20 12.2 19.4 25.6 28.9 31.1 35.6 37.8 37.2 33.3 29.4 16.1 10.6 21 5.0 16.7 25.0 31.1 30.6 36.7 37.2 37.2 35.0 29.4 21.7 14.4 22 11.1 21.7 27.2 30.0 28.3 37.8 38.3 37.8 23.9 24.4 22.8 12.8 23 18.3 21.7 25.6 22.8 31.1 37.2 38.3 38.3 22.8 26.7 16.7 18.9 24 17.8 10.6 33.3 28.9 33.3 36.1 37.2 36.1 26.7 29.4 27.2 26.7 25 17.8 7.8 38.3 30.6 35.0 33.3 34.4 33.9 27.2 28.3 20.6 16.7 26 21.1 12.8 33.9 30.6 32.8 32.2 32.2 36.1 19.4 28.9 10.6 21.1 27 18.3 18.3 26.7 21.1 37.8 35.0 29.4 37.2 22.2 30.0 6.1 22.8 28 21.1 22.8 32.2 27.2 38.9 37.8 32.8 37.2 29.4 28.9 15.0 25.6 29 24.4 28.9 30.6 31.1 36.7 37.8 33.9 38.9 33.9 27.2 21.1 20.6 30 25.6 0.0 19.4 34.4 36.1 37.2 34.4 35.0 33.3 14.4 17.8 14.4 31 20.0 0.0 27.8 0.0 36.7 0.0 34.4 33.9 0.0 15.6 0.0 16.1 ----------------------------------------------------------------------------------------- Max 26.1 28.9 38.3 34.4 38.9 37.8 38.9 38.9 35.6 35.0 27.8 26.7 Min -6.1 7.8 15.0 6.1 23.3 25.6 29.4 33.9 19.4 14.4 6.1 8.3 Mean 17.2 17.5 25.4 26.1 31.7 33.7 36.2 36.5 31.3 29.9 19.7 16.9 -----------------------------------------------------------------------------------------