Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 2006. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 13.7 9.8 12.9 19.4 14.7 20.5 20.3 23.3 22.7 19.6 10.1 -2.9 2 10.9 10.3 13.3 20.6 21.1 20.5 20.3 23.4 24.9 21.1 6.3 1.1 3 9.4 7.8 14.2 20.6 18.6 20.1 21.7 24.0 23.9 19.3 3.7 -0.3 4 10.6 4.4 9.7 17.2 17.6 20.1 21.4 23.3 20.1 19.6 7.8 -3.8 5 6.5 3.4 16.1 18.7 19.3 19.5 22.1 22.8 18.3 21.1 15.5 0.1 6 3.0 5.8 13.9 19.1 16.9 19.3 22.2 22.7 17.0 22.2 12.2 11.1 7 2.2 1.8 15.2 15.2 17.7 19.9 20.9 20.7 18.9 15.9 9.8 3.4 8 8.7 4.4 17.7 10.6 16.1 21.3 21.3 22.0 19.0 16.0 12.1 -4.1 9 9.9 5.3 14.2 10.8 22.8 22.5 22.5 23.3 21.7 17.7 18.1 -0.3 10 2.5 5.7 8.6 11.3 16.8 20.7 23.9 23.1 20.7 18.7 13.2 6.2 11 1.9 0.8 19.7 13.4 13.4 21.3 23.3 23.6 21.1 15.2 6.5 11.4 12 10.6 -3.0 20.4 16.9 12.3 19.7 23.0 23.9 20.9 15.4 3.7 9.1 13 5.9 0.8 11.4 17.8 14.5 23.2 23.0 23.1 18.8 11.6 13.4 6.0 14 1.8 1.0 7.4 15.1 17.3 20.3 22.7 24.1 17.7 18.4 13.1 7.4 15 10.0 13.2 7.2 18.7 15.7 18.7 23.0 22.7 22.1 19.5 8.2 13.9 16 12.2 12.8 14.7 19.1 12.3 23.1 23.6 22.9 24.1 19.2 4.9 16.1 17 4.3 2.5 13.1 20.5 15.1 19.1 24.3 22.9 22.2 16.2 3.8 17.5 18 2.4 -3.4 12.0 20.3 15.7 18.5 25.1 25.3 18.2 12.8 6.3 19.6 19 11.6 -3.3 12.2 19.3 16.5 20.3 22.7 25.1 15.9 11.0 7.6 13.3 20 10.4 0.1 11.9 15.6 17.7 21.5 23.6 23.1 16.1 8.7 4.6 10.2 21 3.5 4.5 4.5 17.1 16.6 21.7 22.9 23.3 16.3 15.6 2.7 7.6 22 7.0 8.1 2.8 15.9 20.1 23.1 23.6 23.9 25.7 6.3 4.4 2.5 23 4.6 6.6 1.5 18.0 20.1 21.3 24.0 24.3 22.0 7.7 8.4 5.3 24 1.5 7.1 -0.9 20.3 21.0 22.4 21.5 23.2 17.7 10.1 9.8 5.6 25 4.4 9.9 4.8 14.1 21.9 23.1 22.1 24.6 13.9 17.2 9.6 5.0 26 6.3 6.1 5.2 11.2 20.9 22.2 22.2 25.1 15.5 21.0 12.9 0.2 27 6.6 4.5 5.6 10.6 22.1 19.7 23.2 24.4 15.4 12.2 15.4 2.5 28 9.8 10.2 15.0 17.2 20.9 20.4 24.9 24.5 18.0 8.4 17.2 12.6 29 7.0 0.0 13.9 15.8 19.5 20.9 24.6 23.2 13.9 9.4 20.2 20.5 30 7.4 0.0 13.3 11.6 19.3 21.5 22.6 20.4 19.6 14.0 -0.3 9.7 31 5.1 0.0 18.3 0.0 19.3 0.0 23.9 19.9 0.0 11.1 0.0 3.9 ----------------------------------------------------------------------------------------- Max 13.7 13.2 20.4 20.6 22.8 23.2 25.1 25.3 25.7 22.2 20.2 20.5 Min 1.5 -3.4 -0.9 10.6 12.3 18.5 20.3 19.9 13.9 6.3 -0.3 -4.1 Mean 6.8 4.9 11.3 16.4 17.9 20.9 22.8 23.3 19.4 15.2 9.4 6.8 -----------------------------------------------------------------------------------------