Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1943. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 7.8 6.7 5.0 16.7 16.1 23.3 18.3 22.2 20.6 17.8 18.3 2.8 2 10.0 8.3 -3.9 14.4 16.1 23.3 20.0 23.3 23.3 17.8 10.6 6.7 3 9.4 17.8 -10.0 15.6 16.1 24.4 23.3 23.9 22.8 17.8 7.2 7.2 4 1.7 10.6 -3.3 16.7 16.1 24.4 22.2 23.3 22.8 15.0 10.6 8.9 5 2.8 6.1 8.3 16.7 19.4 21.7 21.7 23.9 21.7 12.8 12.2 13.3 6 2.8 2.8 -2.2 13.9 20.0 22.2 22.2 23.3 21.7 9.4 18.9 8.9 7 2.8 3.9 -6.7 15.6 16.1 21.1 22.2 23.9 19.4 9.4 7.8 6.7 8 1.7 6.1 -1.1 14.4 21.7 21.7 23.9 23.3 20.6 11.7 0.0 8.9 9 -1.7 7.8 4.4 16.1 22.2 20.6 22.8 23.3 21.1 13.9 1.7 16.7 10 2.8 5.6 9.4 17.2 17.2 20.6 21.1 23.9 20.0 16.1 2.8 6.1 11 8.3 -2.8 6.1 20.0 12.8 20.6 21.1 22.8 17.8 16.7 4.4 3.3 12 9.4 0.0 7.2 12.2 15.6 21.1 21.1 22.8 17.2 20.0 5.6 4.4 13 6.7 0.0 9.4 10.0 16.1 21.7 22.2 22.8 18.9 13.3 8.3 6.7 14 5.6 5.6 6.7 10.0 15.0 22.8 23.3 22.2 20.0 11.7 11.7 6.1 15 5.6 -0.6 17.2 6.7 20.6 20.6 23.3 22.2 20.6 11.1 11.7 -8.3 16 11.7 0.6 6.1 15.0 22.2 21.7 22.2 21.7 21.1 5.6 10.0 -7.2 17 0.0 4.4 3.3 17.2 22.2 20.6 23.9 23.9 18.3 7.2 5.6 -5.0 18 -3.9 11.7 15.0 12.8 22.2 22.2 23.3 21.7 14.4 11.1 7.2 -3.3 19 -12.8 10.6 6.1 12.2 20.0 22.8 22.8 20.6 14.4 17.8 8.3 -0.6 20 -8.9 13.3 2.8 6.1 17.8 22.2 23.3 17.2 16.7 18.9 8.3 0.0 21 -2.2 8.9 1.7 12.8 16.1 21.7 22.8 22.2 16.1 16.1 6.1 2.8 22 2.8 1.7 2.8 16.7 16.1 22.2 22.2 21.7 16.7 16.7 7.8 8.3 23 8.3 6.7 4.4 17.2 15.0 21.7 22.2 22.2 19.4 17.8 6.1 1.7 24 15.0 7.2 11.1 15.0 20.0 21.7 22.8 21.7 18.3 14.4 5.0 -1.1 25 -3.3 7.2 11.1 17.8 13.9 20.6 26.1 22.8 17.8 8.9 2.8 -0.6 26 -5.6 3.3 8.9 17.2 14.4 21.7 23.9 21.7 15.0 5.6 6.1 -0.6 27 -5.6 2.8 7.8 16.7 21.7 22.2 18.9 21.7 12.2 1.7 6.1 5.6 28 -1.1 5.0 11.7 16.7 22.2 23.9 22.8 23.3 14.4 4.4 5.0 0.0 29 -1.1 0.0 12.2 16.1 18.3 18.9 20.0 25.6 18.9 15.6 2.8 -3.3 30 1.7 0.0 11.7 16.7 18.9 17.8 22.8 22.8 20.0 18.3 -1.1 -1.7 31 14.4 0.0 16.1 0.0 20.0 0.0 23.3 22.2 0.0 14.4 0.0 1.1 ----------------------------------------------------------------------------------------- Max 15.0 17.8 17.2 20.0 22.2 24.4 26.1 25.6 23.3 20.0 18.9 16.7 Min -12.8 -2.8 -10.0 6.1 12.8 17.8 18.3 17.2 12.2 1.7 -1.1 -8.3 Mean 2.7 5.8 5.8 14.7 18.1 21.7 22.3 22.6 18.7 13.2 7.3 3.0 -----------------------------------------------------------------------------------------