Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1988. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 -2.2 16.1 14.4 13.9 12.2 17.8 22.8 23.3 21.7 17.2 12.2 3.3 2 2.2 1.7 8.9 6.7 12.8 18.3 23.3 22.8 22.2 15.0 11.1 5.6 3 2.2 2.8 3.3 11.7 15.6 17.8 23.9 23.9 23.9 15.0 15.6 5.0 4 0.0 -5.0 1.7 11.1 11.7 17.8 22.2 23.3 21.7 13.9 15.0 7.2 5 -0.6 1.7 4.4 17.2 14.4 16.1 22.2 23.3 16.7 13.9 11.7 8.3 6 -0.6 -2.8 4.4 10.0 16.1 18.9 21.7 23.9 18.9 12.8 8.9 8.9 7 -3.3 -5.6 6.7 11.1 17.8 20.6 21.7 24.4 16.1 12.8 15.6 12.2 8 -5.0 4.4 8.9 12.2 21.7 20.0 21.1 25.0 17.2 13.3 11.7 2.8 9 -3.9 3.9 6.1 12.8 21.7 20.0 21.7 24.4 17.2 16.1 21.1 1.7 10 -7.2 -0.6 6.1 7.8 21.1 19.4 21.7 22.8 19.4 10.6 13.9 4.4 11 -5.0 -5.0 12.8 6.1 17.8 16.7 23.9 24.4 18.3 12.8 15.0 5.6 12 4.4 -7.2 7.8 6.1 16.1 17.2 23.3 24.4 22.2 13.3 13.3 3.3 13 -3.3 0.0 1.7 8.3 15.0 16.7 23.9 23.3 21.7 11.1 10.0 2.2 14 -1.1 9.4 -2.2 11.1 15.0 20.0 22.2 23.3 21.7 11.1 17.2 5.0 15 -1.7 3.3 0.6 16.1 17.2 20.0 24.4 23.3 22.2 13.9 16.1 6.1 16 11.7 1.7 8.9 15.0 18.9 20.0 23.9 23.9 22.8 16.7 6.7 0.6 17 11.1 11.1 3.9 16.7 16.7 20.6 23.3 23.3 23.9 17.2 3.9 0.6 18 6.1 4.4 0.6 9.4 15.0 19.4 22.8 23.3 24.4 19.4 12.2 2.2 19 6.1 3.9 0.0 6.1 17.2 20.0 22.8 21.1 25.0 15.0 7.2 5.0 20 0.6 5.0 3.9 10.0 16.7 20.6 22.2 23.3 24.4 16.1 4.4 14.4 21 -5.6 2.8 4.4 16.1 16.1 20.6 21.7 23.3 21.7 16.7 2.2 13.9 22 -1.7 3.3 10.0 20.6 15.0 20.0 20.6 23.9 21.7 15.0 3.9 14.4 23 -2.8 6.7 16.7 18.3 13.3 20.0 21.1 23.9 22.2 17.8 3.9 13.3 24 2.2 3.3 17.8 12.2 16.1 21.1 21.1 25.0 21.7 12.8 5.6 12.8 25 -1.7 3.3 16.7 15.6 16.7 21.7 22.2 22.2 15.6 19.4 18.3 13.3 26 -3.3 9.4 15.6 12.8 17.2 20.6 22.2 23.3 17.2 18.3 13.3 11.7 27 -1.7 13.9 15.0 11.7 13.9 22.2 22.8 22.8 17.8 18.3 6.1 11.1 28 1.7 8.9 18.9 13.9 15.0 23.9 21.7 22.2 19.4 13.9 0.6 -1.1 29 5.6 14.4 6.1 15.6 20.0 22.2 21.7 22.8 16.1 13.9 3.3 -1.1 30 15.6 0.0 3.3 15.6 20.6 21.7 21.1 22.2 15.0 16.7 4.4 5.6 31 17.2 0.0 9.4 0.0 21.7 0.0 21.7 21.1 0.0 12.2 0.0 6.7 ----------------------------------------------------------------------------------------- Max 17.2 16.1 18.9 20.6 21.7 23.9 24.4 25.0 25.0 19.4 21.1 14.4 Min -7.2 -7.2 -2.2 6.1 11.7 16.1 20.6 21.1 15.0 10.6 0.6 -1.1 Mean 1.2 3.8 7.6 12.4 16.6 19.7 22.3 23.4 20.3 14.9 10.1 6.6 -----------------------------------------------------------------------------------------