Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1935. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 3.9 2.8 3.3 15.6 20.6 17.8 21.7 21.7 18.9 13.9 8.9 10.0 2 -2.8 5.0 11.1 13.9 16.1 21.7 22.2 23.3 21.7 12.2 12.2 0.0 3 1.1 3.3 13.9 10.0 14.4 18.9 22.2 23.9 21.7 15.6 20.0 2.2 4 2.2 5.0 11.1 12.8 10.0 19.4 21.7 22.2 21.1 14.4 12.2 7.2 5 2.2 3.9 9.4 20.0 7.2 18.9 21.1 22.8 20.6 15.6 4.4 7.8 6 10.6 9.4 12.8 13.9 7.2 17.8 21.7 18.9 18.9 16.7 4.4 13.9 7 9.4 13.3 1.7 10.0 12.2 20.6 22.2 17.2 18.9 11.1 11.7 12.8 8 9.4 12.2 5.6 6.1 12.8 18.3 23.9 18.9 18.9 12.8 8.9 11.1 9 5.6 8.3 8.3 14.4 16.7 13.9 25.0 20.6 19.4 14.4 14.4 5.6 10 8.9 3.3 14.4 15.6 16.1 21.1 25.0 21.1 17.8 14.4 12.8 11.7 11 8.3 4.4 13.3 12.8 18.3 21.7 24.4 20.0 17.8 16.1 2.2 7.2 12 12.8 6.7 3.9 10.0 18.3 20.0 21.1 20.6 17.8 16.1 -0.6 2.8 13 8.9 6.1 5.6 4.4 20.6 17.8 22.8 23.3 18.9 19.4 0.0 3.3 14 7.8 6.1 8.3 8.9 18.9 23.3 21.7 22.2 20.0 17.8 3.9 11.1 15 12.8 8.9 10.6 16.1 17.8 20.0 20.0 23.3 20.0 18.3 5.6 2.2 16 16.7 3.9 16.1 10.0 18.3 23.3 22.2 22.2 17.8 17.2 3.3 2.2 17 14.4 -2.8 7.8 18.3 17.2 23.9 21.7 21.7 18.3 15.6 3.9 -1.7 18 12.2 -0.6 9.4 20.0 15.6 21.1 22.2 22.8 18.3 18.9 8.3 -1.1 19 13.9 7.2 16.7 14.4 17.2 18.9 22.2 22.8 17.8 17.2 9.4 5.0 20 7.8 6.7 17.8 13.3 12.8 23.3 23.3 22.2 18.3 17.8 4.4 3.9 21 -10.6 8.3 18.9 10.0 15.0 23.3 23.3 21.1 18.9 21.7 5.0 1.7 22 -11.7 8.9 19.4 10.6 16.1 20.6 23.3 20.6 18.9 21.7 4.4 0.6 23 -3.9 2.8 17.8 12.8 17.8 21.1 23.3 22.2 19.4 6.1 1.7 3.9 24 -2.8 13.9 15.6 18.3 12.8 20.6 22.2 23.3 20.0 6.1 6.1 3.9 25 -2.8 -2.8 19.4 12.8 13.3 21.7 22.2 22.8 21.1 11.1 10.6 3.3 26 2.2 -3.9 18.3 13.9 16.1 21.1 22.2 22.2 21.7 9.4 13.3 -3.9 27 3.3 -2.8 16.7 12.8 18.9 21.1 23.3 21.1 13.9 14.4 8.9 -0.6 28 -0.6 -1.1 9.4 17.2 19.4 21.1 21.7 23.9 10.0 11.7 2.8 1.7 29 4.4 0.0 10.6 17.2 22.2 21.1 24.4 22.2 10.0 15.6 3.3 0.0 30 7.2 0.0 16.7 11.7 22.2 22.2 22.2 16.7 11.1 18.9 5.0 -2.2 31 2.8 0.0 11.7 0.0 22.2 0.0 22.8 16.7 0.0 19.4 0.0 3.3 ----------------------------------------------------------------------------------------- Max 16.7 13.9 19.4 20.0 22.2 23.9 25.0 23.9 21.7 21.7 20.0 13.9 Min -11.7 -3.9 1.7 4.4 7.2 13.9 20.0 16.7 10.0 6.1 -0.6 -3.9 Mean 5.0 4.9 12.1 13.3 16.3 20.5 22.6 21.4 18.3 15.2 7.1 4.2 -----------------------------------------------------------------------------------------