Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1979. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 -6.1 -3.9 5.6 15.6 17.8 18.3 22.2 23.9 22.2 18.3 7.2 -3.3 2 -11.1 2.8 10.0 10.0 19.4 19.4 21.1 22.8 21.7 18.3 7.8 0.0 3 -7.2 4.4 3.3 10.6 15.0 19.4 22.8 23.3 22.2 16.7 7.2 1.7 4 0.6 2.8 0.6 8.3 11.7 20.0 22.8 21.1 22.2 13.3 7.2 3.3 5 -1.1 2.2 0.0 7.2 10.6 20.0 23.9 22.8 21.7 13.3 12.2 3.9 6 -1.7 1.7 5.0 10.0 12.2 22.2 22.8 24.4 22.2 15.6 8.3 6.1 7 -3.9 0.6 7.2 13.9 16.1 25.0 23.9 23.9 21.1 13.9 6.1 3.9 8 -7.8 -3.9 8.3 18.3 20.6 24.4 22.2 21.1 22.2 20.0 8.9 6.1 9 -5.6 -7.2 11.7 11.1 19.4 22.8 22.2 21.1 18.3 15.0 11.1 3.9 10 0.6 -2.8 6.1 16.7 18.3 18.9 22.8 22.8 17.8 8.9 5.0 9.4 11 0.6 3.3 3.9 17.8 10.6 16.1 21.7 21.1 20.6 9.4 2.8 9.4 12 0.0 7.8 5.0 13.9 7.8 15.6 21.1 20.6 20.6 14.4 4.4 2.2 13 -6.1 6.7 9.4 12.8 10.0 17.8 22.2 22.2 21.7 19.4 3.9 1.7 14 -8.3 13.9 11.1 12.2 13.9 18.3 23.9 22.2 18.9 15.0 2.8 6.1 15 -5.6 3.3 7.2 15.6 16.1 18.3 23.9 22.2 15.6 15.6 3.3 5.0 16 3.9 -3.9 7.2 15.0 16.7 17.8 22.8 22.2 14.4 20.0 6.7 -0.6 17 12.8 -5.0 11.7 18.3 16.7 20.6 21.7 22.2 13.3 20.0 8.3 -5.6 18 16.7 -2.8 18.9 17.2 16.7 19.4 23.3 21.7 20.0 18.9 14.4 -4.4 19 12.2 -2.8 15.6 17.8 20.0 24.4 22.2 21.7 20.0 20.6 17.8 2.2 20 4.4 4.4 15.6 18.9 21.1 24.4 22.2 22.2 19.4 22.8 20.0 7.8 21 3.3 5.6 14.4 16.7 16.7 22.8 23.3 21.7 17.2 22.2 7.2 15.0 22 -0.6 16.7 13.9 16.1 16.7 22.8 23.3 18.9 18.3 9.4 1.7 15.6 23 -3.9 11.1 8.9 15.0 17.2 21.7 23.9 19.4 18.3 6.7 0.6 8.3 24 -5.0 2.8 5.6 15.0 17.8 21.7 23.3 21.1 17.8 8.9 4.4 6.1 25 1.7 2.2 5.6 16.1 14.4 22.2 23.9 20.0 15.0 10.6 4.4 3.9 26 4.4 1.7 11.1 16.1 15.0 22.2 23.3 21.1 15.6 10.6 5.6 5.0 27 0.0 4.4 16.7 13.3 17.8 21.1 23.3 22.2 17.8 12.2 7.8 10.6 28 -4.4 6.7 17.2 11.1 17.2 22.2 23.3 22.2 16.7 16.1 1.7 10.0 29 0.6 0.0 19.4 12.8 16.7 22.8 23.3 21.1 18.9 16.1 -1.7 4.4 30 -4.4 0.0 16.1 13.9 18.9 23.3 22.8 22.2 16.7 10.6 -5.0 2.8 31 -7.8 0.0 14.4 0.0 17.2 0.0 23.9 23.3 0.0 6.7 0.0 1.1 ----------------------------------------------------------------------------------------- Max 16.7 16.7 19.4 18.9 21.1 25.0 23.9 24.4 22.2 22.8 20.0 15.6 Min -11.1 -7.2 0.0 7.2 7.8 15.6 21.1 18.9 13.3 6.7 -5.0 -5.6 Mean -0.9 2.6 9.9 14.2 16.0 20.9 22.9 21.9 18.9 14.8 6.4 4.6 -----------------------------------------------------------------------------------------