Daily maximum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1918. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 18.3 -0.6 7.8 31.1 21.1 28.9 34.4 37.2 37.2 32.8 22.8 15.0 2 21.1 12.2 14.4 31.1 23.9 31.7 32.8 38.3 37.8 33.3 25.0 15.6 3 17.2 16.7 18.3 31.1 23.9 28.3 34.4 38.9 37.8 33.9 26.1 20.0 4 22.2 18.9 23.9 31.1 22.2 33.3 35.6 37.2 35.6 33.9 26.1 21.7 5 20.0 22.2 25.0 28.9 25.0 32.2 35.6 37.8 30.6 33.3 26.1 23.3 6 15.6 22.8 23.3 21.7 28.9 31.1 35.6 38.9 24.4 33.3 26.7 23.3 7 13.9 25.6 24.4 23.9 31.1 29.4 37.2 38.3 27.8 28.9 26.7 22.2 8 23.3 27.8 31.1 24.4 31.1 31.7 38.3 37.2 30.6 32.8 25.0 25.0 9 18.3 12.8 30.6 21.1 31.1 30.6 37.8 37.8 32.8 32.2 18.9 26.1 10 14.4 11.1 23.3 20.0 31.1 31.1 40.0 37.2 33.9 31.1 18.3 23.9 11 3.3 13.3 26.1 23.9 31.7 35.6 39.4 37.8 35.0 23.3 19.4 18.3 12 -1.1 24.4 32.2 24.4 26.7 36.1 38.3 36.1 37.8 30.6 21.1 16.7 13 5.0 29.4 30.6 21.1 28.9 25.6 36.7 37.8 38.3 29.4 22.2 16.1 14 7.8 26.7 27.2 26.7 29.4 35.0 37.8 37.8 40.0 28.9 18.9 16.1 15 13.3 24.4 18.9 28.3 30.6 29.4 39.4 37.8 36.7 25.6 23.3 17.8 16 11.7 22.8 17.2 28.9 30.6 28.9 36.7 37.8 33.3 26.7 23.9 15.6 17 10.0 9.4 20.0 26.7 30.6 34.4 39.4 38.9 32.2 23.9 22.2 17.8 18 15.6 8.3 20.6 30.6 32.2 40.0 40.6 40.0 35.6 27.2 20.6 15.6 19 15.0 22.2 26.7 29.4 30.0 33.9 36.7 40.6 34.4 28.9 22.2 13.9 20 2.8 19.4 31.1 18.3 32.2 36.1 36.1 37.8 20.6 31.1 20.6 17.8 21 1.7 3.9 28.3 21.1 30.0 38.3 35.6 38.9 23.3 26.7 17.8 19.4 22 11.1 18.3 30.6 28.3 30.6 37.2 37.2 39.4 26.1 25.6 6.1 13.9 23 21.1 25.0 28.9 28.9 32.2 36.7 37.2 37.8 28.9 22.2 3.9 15.0 24 20.6 28.3 26.7 31.7 32.2 36.7 34.4 37.2 31.7 20.6 7.2 8.9 25 30.0 37.8 26.7 28.3 31.7 37.2 38.3 34.4 33.3 25.6 6.1 4.4 26 28.3 32.2 29.4 28.3 32.8 39.4 36.1 36.1 30.0 21.1 4.4 10.0 27 21.1 29.4 29.4 28.3 31.7 37.2 38.9 37.8 31.7 18.3 4.4 11.7 28 5.6 23.3 26.7 22.8 32.8 38.3 40.0 37.8 26.7 22.8 13.9 13.9 29 10.0 0.0 29.4 20.6 32.8 37.2 37.2 37.8 30.6 22.2 10.0 15.0 30 14.4 0.0 21.7 22.2 32.2 38.3 37.8 38.3 32.8 21.7 11.1 17.8 31 5.0 0.0 28.3 0.0 32.2 0.0 37.8 36.1 0.0 21.7 0.0 18.3 ----------------------------------------------------------------------------------------- Max 30.0 37.8 32.2 31.7 32.8 40.0 40.6 40.6 40.0 33.9 26.7 26.1 Min -1.1 -0.6 7.8 18.3 21.1 25.6 32.8 34.4 20.6 18.3 3.9 4.4 Mean 14.1 20.3 25.1 26.1 29.8 34.0 37.2 37.8 32.2 27.4 18.0 17.1 -----------------------------------------------------------------------------------------