Daily maximum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1964. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 18.3 15.6 17.8 22.2 25.6 27.2 34.4 36.7 35.0 25.0 26.1 15.0 2 21.7 15.0 23.9 24.4 32.8 29.4 35.0 36.7 36.1 28.9 26.1 23.3 3 22.8 13.3 23.3 29.4 32.2 30.0 35.0 37.2 35.0 29.4 26.1 21.1 4 18.9 13.3 21.7 28.9 30.6 32.2 36.7 38.9 35.6 28.3 22.8 14.4 5 16.1 11.7 20.0 25.0 25.6 31.7 36.1 40.6 35.6 24.4 20.0 7.2 6 15.6 12.2 22.2 29.4 23.9 35.6 36.7 39.4 34.4 22.2 21.1 8.3 7 18.9 10.6 22.8 27.2 25.0 35.0 36.7 38.9 33.9 23.3 23.3 11.1 8 21.7 14.4 23.9 15.6 27.8 35.0 36.1 36.7 35.0 26.7 25.0 11.1 9 20.0 19.4 22.8 21.1 28.9 36.1 36.7 37.2 34.4 26.7 25.0 10.0 10 13.3 21.7 18.9 23.9 31.7 36.1 36.7 38.9 35.6 23.3 23.9 13.3 11 14.4 20.0 21.7 26.1 30.0 35.0 37.2 39.4 36.7 26.7 25.6 17.8 12 10.0 19.4 22.2 29.4 30.0 36.1 36.7 38.3 32.2 26.7 24.4 21.1 13 2.2 19.4 22.8 28.9 28.3 36.1 36.1 37.2 29.4 22.8 26.7 18.9 14 6.1 10.0 22.2 26.1 31.7 35.6 35.0 38.3 28.9 23.9 26.7 14.4 15 5.0 13.9 21.1 28.3 29.4 25.0 35.6 37.8 32.8 26.1 27.2 14.4 16 1.1 13.3 21.7 27.2 31.1 27.8 35.0 36.1 29.4 29.4 27.8 21.7 17 8.9 13.3 24.4 28.3 30.6 31.7 35.0 35.0 28.3 30.6 27.2 19.4 18 18.9 16.7 23.9 27.8 30.6 33.3 35.0 37.2 29.4 28.9 22.8 -2.8 19 22.8 15.0 24.4 28.9 31.7 33.9 34.4 38.3 32.2 20.0 22.2 6.1 20 21.7 14.4 24.4 28.9 32.2 34.4 34.4 37.8 31.1 25.0 13.9 20.6 21 20.6 11.7 13.9 27.2 31.1 34.4 35.6 38.9 31.1 27.8 12.2 23.9 22 22.8 11.7 18.9 30.0 28.9 33.9 35.6 36.7 28.9 25.6 8.9 22.2 23 22.2 14.4 22.8 31.1 30.6 35.6 36.7 28.3 27.8 25.6 12.8 23.3 24 21.7 12.8 23.9 31.7 33.9 35.0 38.3 30.6 25.6 26.1 18.3 26.7 25 16.1 18.9 23.3 30.0 32.8 34.4 39.4 34.4 28.3 26.7 21.7 26.1 26 18.9 16.7 17.8 25.6 32.8 34.4 38.9 35.6 27.8 25.6 25.0 23.9 27 20.0 15.6 22.8 30.6 33.9 35.0 37.8 36.1 26.7 23.3 26.1 13.3 28 19.4 15.6 21.7 30.0 32.2 34.4 37.2 35.6 21.7 26.1 25.0 24.4 29 17.8 15.6 22.2 25.6 31.1 34.4 37.2 36.1 25.0 27.2 21.1 24.4 30 12.2 0.0 22.2 26.7 31.1 35.0 35.0 36.1 23.9 26.1 20.6 24.4 31 12.2 0.0 22.8 0.0 25.0 0.0 36.1 35.0 0.0 26.7 0.0 25.6 ----------------------------------------------------------------------------------------- Max 22.8 21.7 24.4 31.7 33.9 36.1 39.4 40.6 36.7 30.6 27.8 26.7 Min 1.1 10.0 13.9 15.6 23.9 25.0 34.4 28.3 21.7 20.0 8.9 -2.8 Mean 16.2 15.0 21.9 27.2 30.1 33.5 36.2 36.8 30.9 26.0 22.5 17.6 -----------------------------------------------------------------------------------------