Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1940. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 0.0 6.1 15.0 13.3 14.4 18.3 22.8 23.3 22.2 14.4 11.7 8.3 2 -3.9 11.1 11.7 20.6 10.6 19.4 23.3 23.3 22.2 15.6 7.8 3.9 3 -4.4 5.6 4.4 18.9 13.9 18.3 20.0 22.8 23.9 16.7 10.6 2.2 4 2.8 5.0 6.1 18.9 15.0 17.8 20.6 22.2 21.7 16.1 13.9 4.4 5 0.0 10.6 6.7 12.8 14.4 16.7 16.7 23.3 21.7 20.6 13.3 9.4 6 0.0 3.3 6.1 8.9 16.7 19.4 20.6 24.4 22.2 20.6 11.1 13.9 7 0.6 0.6 7.8 6.1 16.1 19.4 19.4 21.1 22.2 14.4 12.8 11.7 8 -6.7 7.8 2.8 8.9 19.4 21.1 21.1 24.4 22.2 10.0 8.9 3.3 9 -4.4 -2.8 6.1 10.0 18.9 23.3 22.8 22.2 23.3 10.6 9.4 5.6 10 6.7 -3.9 16.7 16.1 16.7 18.9 21.7 21.1 19.4 13.9 12.8 8.3 11 8.9 1.1 15.0 10.0 14.4 15.0 21.7 21.1 15.0 15.6 3.9 8.3 12 0.6 8.9 14.4 0.6 15.6 16.7 19.4 24.4 13.3 15.0 2.8 8.9 13 3.3 3.3 1.1 0.0 13.9 17.2 22.2 23.3 13.3 16.7 -2.2 5.0 14 -2.2 0.0 -1.1 5.6 15.0 18.3 21.1 24.4 13.9 16.7 -5.6 1.7 15 -3.3 7.8 3.9 11.7 17.8 17.8 20.0 24.4 15.0 9.4 -3.9 1.7 16 -3.3 10.0 2.8 18.9 17.8 18.3 20.0 25.0 18.3 6.7 -0.6 -1.7 17 -2.8 3.3 11.7 15.6 20.6 20.6 21.7 25.0 20.6 8.3 5.0 0.0 18 -8.9 2.2 16.7 8.3 22.2 20.6 22.2 22.2 19.4 11.7 8.9 4.4 19 -15.0 0.0 9.4 5.0 13.9 21.1 22.8 18.9 20.0 11.7 13.9 7.8 20 -8.9 1.1 10.6 7.2 13.3 21.7 23.3 16.7 20.0 12.8 16.7 11.1 21 -8.3 -2.2 9.4 10.6 18.3 21.7 22.2 15.6 20.0 15.0 10.0 6.7 22 -8.3 2.2 11.7 16.7 17.2 20.6 21.7 16.7 21.1 14.4 17.2 6.7 23 -15.0 7.8 11.1 14.4 16.7 20.6 22.8 18.9 20.6 14.4 16.7 6.7 24 -10.6 6.7 6.7 12.8 11.1 22.8 22.8 19.4 17.2 17.2 9.4 5.6 25 -10.0 0.6 3.9 12.8 14.4 15.6 22.8 22.8 18.9 18.9 7.2 9.4 26 -7.8 3.3 6.7 13.9 17.2 17.2 23.9 24.4 10.6 15.6 5.6 9.4 27 -8.3 13.9 11.1 17.2 17.8 22.8 24.4 24.4 10.0 17.8 3.9 7.2 28 -6.1 10.0 15.6 17.8 18.3 24.4 23.9 24.4 12.2 17.8 3.3 2.8 29 1.7 8.9 18.3 14.4 17.2 20.6 23.3 20.0 13.3 12.8 4.4 5.6 30 2.2 0.0 12.2 21.7 16.7 21.1 22.8 18.9 14.4 13.9 12.2 9.4 31 0.0 0.0 14.4 0.0 18.3 0.0 22.8 21.7 0.0 16.1 0.0 17.2 ----------------------------------------------------------------------------------------- Max 8.9 13.9 18.3 21.7 22.2 24.4 24.4 25.0 23.9 20.6 17.2 17.2 Min -15.0 -3.9 -1.1 0.0 10.6 15.0 16.7 15.6 10.0 6.7 -5.6 -1.7 Mean -3.6 4.6 9.3 12.3 16.3 19.6 21.8 22.0 18.3 14.6 8.0 6.6 -----------------------------------------------------------------------------------------