Daily maximum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1923. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 22.2 23.3 17.8 18.9 25.0 30.6 30.6 36.7 33.3 18.3 7.2 17.8 2 21.7 23.9 20.0 21.1 23.3 32.2 31.1 36.7 33.3 29.4 9.4 18.3 3 17.2 12.8 25.6 22.8 24.4 32.2 33.3 37.8 28.9 21.7 12.2 13.3 4 22.8 -1.1 25.0 23.9 24.4 31.1 33.3 37.8 26.1 22.2 15.6 15.6 5 24.4 -0.6 15.6 23.9 25.0 31.7 30.0 35.0 28.9 23.9 14.4 17.8 6 24.4 6.1 14.4 23.3 25.6 31.7 29.4 35.0 28.9 23.9 18.3 22.8 7 22.8 23.3 16.7 26.7 25.6 31.1 27.2 35.0 25.6 25.0 16.7 23.3 8 30.6 10.0 20.0 26.7 23.3 30.6 30.0 35.0 27.8 18.3 21.1 26.1 9 26.1 15.6 21.1 21.1 22.8 26.7 33.3 31.7 27.8 26.7 23.9 26.1 10 14.4 12.8 23.9 23.9 27.8 29.4 33.9 33.3 30.6 25.0 23.9 22.8 11 27.2 12.8 23.9 23.3 28.3 31.7 34.4 33.3 30.6 14.4 23.9 12.2 12 18.3 22.2 22.8 18.3 24.4 31.1 33.9 36.7 28.9 17.8 25.0 9.4 13 24.4 21.1 22.2 21.1 29.4 30.6 34.4 36.7 30.0 22.8 26.7 7.8 14 24.4 21.1 21.7 21.1 29.4 31.1 34.4 35.0 31.1 17.8 20.6 10.6 15 18.9 5.0 21.1 16.7 25.6 32.2 36.1 35.6 30.6 12.8 21.1 10.6 16 16.1 5.0 9.4 15.0 25.0 32.2 36.1 35.6 25.6 16.7 25.6 10.6 17 21.1 10.0 16.7 18.9 26.7 30.0 35.6 37.2 26.1 23.9 21.1 11.1 18 23.9 10.0 16.1 21.1 29.4 31.7 35.0 37.2 28.3 23.9 21.1 8.3 19 23.9 18.3 7.8 21.1 30.6 31.7 33.9 33.9 29.4 19.4 25.0 20.6 20 23.9 21.7 13.3 20.0 30.6 30.6 29.4 33.9 29.4 20.0 26.1 13.9 21 23.9 20.0 24.4 24.4 30.0 29.4 29.4 35.6 26.1 16.7 23.9 15.0 22 13.9 15.6 24.4 25.6 28.9 28.9 33.9 35.6 27.8 16.7 26.1 13.9 23 9.4 12.2 18.3 25.6 23.3 29.4 34.4 29.4 27.8 15.6 27.8 10.0 24 18.3 9.4 19.4 25.6 30.6 32.8 35.6 30.6 26.7 21.1 26.7 15.0 25 18.9 17.2 25.0 27.2 30.6 32.8 36.1 35.0 28.3 12.2 26.7 15.0 26 23.9 21.7 23.9 27.2 29.4 32.8 36.1 35.6 29.4 12.8 23.3 21.1 27 22.8 21.7 18.3 24.4 30.0 33.3 35.6 27.2 29.4 12.8 18.9 23.9 28 18.9 15.0 13.3 25.6 30.0 31.1 35.6 23.9 28.3 16.1 10.0 23.3 29 17.8 0.0 13.3 25.6 30.6 30.6 35.0 31.1 28.9 17.2 15.6 29.4 30 23.9 0.0 13.9 25.0 31.1 30.6 33.3 34.4 28.3 18.3 20.0 25.6 31 23.9 0.0 13.9 0.0 30.0 0.0 35.6 34.4 0.0 8.3 0.0 22.2 ----------------------------------------------------------------------------------------- Max 30.6 23.9 25.6 27.2 31.1 33.3 36.1 37.8 33.3 29.4 27.8 29.4 Min 9.4 -1.1 7.8 15.0 22.8 26.7 27.2 23.9 25.6 8.3 7.2 7.8 Mean 21.4 14.5 18.8 22.8 27.5 31.1 33.4 34.2 28.7 19.1 20.6 17.2 -----------------------------------------------------------------------------------------