Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1970. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 -2.2 6.7 15.0 15.6 11.1 17.8 22.8 23.9 20.6 15.6 11.1 18.9 2 1.1 4.4 16.7 1.1 9.4 13.9 23.3 24.4 21.7 18.3 3.3 15.6 3 -2.2 -4.4 15.6 5.0 9.4 12.8 22.8 25.0 25.0 18.3 2.2 17.8 4 -2.8 -2.2 9.4 8.3 10.0 12.2 23.9 24.4 25.6 19.4 2.2 11.1 5 5.0 6.7 7.2 4.4 13.9 14.4 22.8 24.4 25.6 19.4 3.3 11.7 6 -5.6 12.2 8.9 5.6 12.8 16.7 19.4 25.0 25.6 18.3 3.9 9.4 7 -9.4 11.7 8.3 8.9 11.7 17.8 21.1 25.0 25.6 21.7 8.3 4.4 8 -3.9 10.0 6.1 12.2 17.8 30.0 23.3 26.1 23.9 12.8 17.2 10.0 9 -5.6 3.3 6.7 16.7 17.8 17.2 24.4 25.0 23.3 7.2 11.1 16.7 10 0.0 0.0 7.2 12.8 20.0 20.0 24.4 23.3 23.9 7.2 5.0 17.8 11 2.8 5.0 3.3 11.7 21.1 23.3 23.3 24.4 23.3 14.4 8.9 3.3 12 0.6 1.7 1.1 15.6 22.8 24.4 23.9 23.3 22.8 13.9 3.3 -1.1 13 2.8 5.6 0.6 12.8 20.0 25.0 23.3 23.9 23.9 11.7 7.8 5.6 14 3.3 12.8 1.7 12.2 20.0 24.4 21.7 22.2 24.4 13.9 6.1 4.4 15 0.6 2.8 5.0 11.7 15.6 21.1 21.7 22.8 22.8 10.6 1.7 8.9 16 7.8 0.6 12.2 20.6 10.0 22.2 21.7 25.0 23.9 9.4 -1.7 7.2 17 2.2 2.8 3.3 20.6 12.8 23.3 23.3 23.3 22.8 10.0 3.3 2.8 18 -5.0 6.7 3.9 19.4 13.9 22.2 23.3 24.4 21.7 9.4 6.7 11.1 19 -4.4 2.2 6.7 12.2 18.3 21.1 22.8 25.0 21.7 9.4 6.7 2.2 20 -3.9 4.4 3.9 11.1 17.8 21.7 22.8 26.1 21.7 11.7 7.2 5.6 21 -1.1 7.8 1.7 13.9 16.7 21.1 19.4 25.0 22.8 12.8 7.2 7.8 22 0.6 8.3 0.0 18.3 18.9 21.1 16.7 23.9 22.8 20.0 14.4 17.8 23 5.0 9.4 7.2 21.7 17.8 22.8 17.2 25.0 15.6 16.7 1.1 10.0 24 6.1 9.4 8.9 22.2 18.9 21.7 20.6 24.4 16.7 11.7 -4.4 -2.8 25 12.2 8.9 15.6 18.9 17.2 21.1 20.0 20.0 20.0 13.9 0.0 5.0 26 7.2 1.1 3.9 20.6 20.0 23.3 20.0 21.1 13.3 21.7 13.9 -2.2 27 11.1 5.6 3.3 22.2 15.6 22.8 23.3 20.0 12.8 15.0 17.2 1.7 28 14.4 12.2 11.7 22.2 16.7 34.4 23.3 21.7 14.4 6.1 12.2 11.7 29 7.2 0.0 4.4 22.2 20.0 23.9 22.8 20.0 13.9 5.6 13.3 13.3 30 -2.8 0.0 8.3 16.7 20.6 22.2 23.3 21.1 16.7 6.7 12.2 7.8 31 0.6 0.0 11.7 0.0 18.9 0.0 23.9 22.2 0.0 7.2 0.0 3.3 ----------------------------------------------------------------------------------------- Max 14.4 12.8 16.7 22.2 22.8 34.4 24.4 26.1 25.6 21.7 17.2 18.9 Min -9.4 -4.4 0.0 1.1 9.4 12.2 16.7 20.0 12.8 5.6 -4.4 -2.8 Mean 1.3 5.6 7.1 14.6 16.4 21.2 22.2 23.6 21.3 13.2 6.8 8.3 -----------------------------------------------------------------------------------------