Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1996. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 2.9 -5.4 2.9 6.2 11.6 20.5 22.8 24.0 21.1 14.0 7.5 2.6 2 .7 -4.0 -.1 7.8 18.0 19.6 22.6 24.7 20.1 14.2 4.9 2.5 3 -4.0 -6.7 2.7 14.1 20.6 22.2 23.8 24.6 21.2 17.8 6.4 7.1 4 2.1 -10.3 9.0 13.4 19.4 18.2 25.0 24.0 20.3 18.6 9.5 8.0 5 2.0 -7.1 18.5 3.5 20.5 20.8 23.2 25.1 21.7 17.4 13.4 5.7 6 -3.4 7.7 2.0 3.6 19.4 22.4 23.0 23.4 21.2 16.9 21.4 10.3 7 -6.8 11.9 -2.7 3.6 21.4 18.3 23.0 23.8 21.0 15.9 9.8 7.6 8 -7.2 13.5 -4.0 8.6 20.1 17.0 24.2 23.8 21.2 14.9 6.8 3.5 9 -2.5 8.8 -5.5 12.9 21.0 16.2 24.3 22.5 22.2 12.0 4.3 5.7 10 2.3 16.1 -1.3 12.1 22.0 20.0 25.2 22.4 19.4 17.3 9.1 12.8 11 5.6 6.2 .7 18.2 18.4 21.6 24.2 23.4 19.9 13.0 10.1 15.9 12 3.1 1.9 5.0 17.6 17.0 21.2 23.1 21.0 20.5 13.9 12.9 11.2 13 4.7 4.7 12.4 10.2 21.2 22.5 23.1 22.0 19.9 14.2 15.4 8.8 14 6.1 8.7 17.9 15.8 19.7 23.1 24.5 22.8 19.7 15.4 15.5 11.9 15 6.2 8.8 13.1 9.2 21.1 22.8 24.6 22.8 21.3 18.6 16.6 2.7 16 5.3 .8 9.1 9.1 21.8 22.5 23.9 23.4 19.9 19.4 18.4 .8 17 14.2 -.5 12.1 12.6 21.5 22.6 23.8 24.8 19.4 17.7 9.3 -2.3 18 -3.4 6.2 8.2 18.9 22.7 24.0 23.6 24.6 20.1 11.0 9.1 -5.9 19 -7.1 12.2 5.5 20.2 22.1 23.8 24.3 21.9 20.7 9.3 12.5 -7.7 20 -2.3 11.1 2.6 16.4 22.2 23.4 24.1 19.6 20.7 17.9 16.0 -4.7 21 .8 12.2 -.8 18.5 21.6 20.3 23.3 22.7 18.4 11.4 11.7 3.0 22 10.6 14.7 8.5 12.5 21.1 22.6 23.9 22.2 18.5 6.9 9.9 14.3 23 5.5 14.8 14.6 9.1 22.3 22.2 24.6 21.5 21.4 4.9 14.7 2.9 24 -.6 9.6 16.8 11.7 22.0 23.4 23.7 21.6 23.2 10.6 -.1 -2.0 25 -.1 16.5 1.7 14.5 22.5 23.1 22.5 22.1 20.8 14.1 -.8 -3.1 26 1.1 18.4 2.5 18.1 24.6 23.2 22.6 21.7 16.4 19.8 .3 5.0 27 -2.5 13.6 3.6 16.6 22.9 23.4 23.2 21.8 11.8 23.5 1.5 3.6 28 1.0 2.2 4.0 17.3 24.0 22.7 23.0 22.5 9.1 15.3 5.1 7.3 29 6.6 2.2 6.2 9.4 23.9 21.8 23.3 21.5 12.8 16.5 6.4 10.9 30 -.9 .0 13.8 7.2 19.9 22.2 23.9 21.6 13.1 11.7 6.0 8.1 31 -4.4 .0 6.5 .0 22.5 .0 24.4 20.8 .0 18.9 .0 14.3 ----------------------------------------------------------------------------------------- Max 14.2 18.4 18.5 20.2 24.6 24.0 25.2 25.1 23.2 23.5 21.4 15.9 Min -7.2 -10.3 -5.5 3.5 11.6 16.2 22.5 19.6 9.1 4.9 -.8 -7.7 Mean 1.1 6.5 6.0 12.3 20.9 21.6 23.7 22.7 19.2 14.9 9.4 5.2 -----------------------------------------------------------------------------------------