Daily minimum temperature (degrees Celsius) recorded at Grassland Soil and Water Research Center for calendar year 1922. ----------------------------------------------------------------------------------------- Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ----------------------------------------------------------------------------------------- 1 0.6 10.0 -7.2 15.6 15.0 17.8 23.9 24.4 24.4 19.4 7.2 18.9 2 4.4 6.7 -7.2 11.1 18.3 22.2 23.9 23.9 26.7 18.3 10.0 17.8 3 12.8 6.1 -8.3 17.8 13.9 18.9 22.2 23.3 22.2 20.0 17.2 18.3 4 12.2 6.7 -5.6 8.9 17.2 17.2 19.4 26.1 20.6 18.3 19.4 17.8 5 -1.1 2.8 1.7 15.6 16.1 23.9 17.8 25.6 21.1 18.3 17.2 13.9 6 1.1 6.1 13.3 19.4 21.1 20.0 21.1 28.3 25.0 18.3 13.9 12.8 7 4.4 -6.1 -4.4 20.6 22.2 21.1 22.8 25.6 23.3 20.0 10.0 16.1 8 4.4 0.6 0.6 16.7 22.2 21.1 23.3 26.7 25.0 14.4 11.7 17.2 9 6.7 11.7 10.6 12.8 22.2 19.4 24.4 25.6 21.1 11.1 11.7 4.4 10 6.1 12.2 5.6 15.0 22.2 20.6 23.3 25.0 21.7 5.0 15.6 -2.8 11 2.2 10.0 4.4 10.0 22.2 21.7 23.9 15.6 15.6 7.8 16.7 4.4 12 -2.8 11.1 7.2 12.8 19.4 23.3 23.3 18.9 18.3 8.9 13.9 2.8 13 -3.9 3.3 11.1 21.1 20.0 20.6 26.1 20.0 15.6 10.6 3.9 3.9 14 -1.1 3.9 13.3 18.3 15.6 18.3 23.9 20.0 18.9 15.0 5.6 5.6 15 1.7 0.0 7.2 8.9 15.0 18.3 21.1 21.7 21.1 15.6 7.2 2.2 16 2.2 -7.2 7.2 20.0 12.8 22.2 22.2 21.1 21.7 18.9 6.7 2.2 17 -1.7 -3.9 10.6 21.1 16.7 21.1 25.6 23.9 18.9 8.9 7.8 5.0 18 3.3 15.6 16.7 7.8 18.3 22.2 24.4 22.8 21.1 9.4 8.3 0.0 19 -4.4 17.8 13.3 5.0 20.0 22.2 26.1 25.0 23.9 6.1 6.1 -3.9 20 -4.4 16.7 0.6 5.0 23.3 20.6 29.4 27.2 18.3 5.6 3.3 -5.0 21 -5.6 17.2 9.4 12.2 22.8 19.4 26.7 25.0 14.4 4.4 2.2 -4.4 22 0.6 13.3 7.2 13.3 21.1 20.6 22.8 22.8 15.6 9.4 2.2 -4.4 23 2.8 2.8 13.3 15.0 20.0 21.7 23.9 24.4 21.1 12.2 5.6 -2.8 24 -2.2 0.0 15.6 17.2 15.0 26.1 22.2 23.3 16.7 1.1 2.2 0.0 25 -1.1 3.3 15.6 17.2 13.3 26.7 21.1 23.3 21.1 6.7 8.3 -0.6 26 0.0 4.4 7.2 17.8 17.2 23.9 24.4 21.1 18.9 10.0 -1.1 16.7 27 2.2 0.6 12.2 13.9 17.2 22.2 25.0 20.6 21.1 7.8 3.9 7.8 28 -2.2 0.6 12.8 13.9 22.2 23.9 26.1 20.0 15.6 5.0 2.8 -3.9 29 1.7 0.0 15.0 12.8 16.7 22.2 22.2 22.2 13.9 11.1 7.2 2.2 30 6.1 0.0 13.9 16.7 17.8 22.8 20.6 22.8 16.7 17.2 18.3 15.6 31 6.7 0.0 10.0 0.0 18.3 0.0 23.9 23.3 0.0 13.3 0.0 3.3 ----------------------------------------------------------------------------------------- Max 12.8 17.8 16.7 21.1 23.3 26.7 29.4 28.3 26.7 20.0 19.4 18.9 Min -5.6 -7.2 -8.3 5.0 12.8 17.2 17.8 15.6 13.9 1.1 -1.1 -5.0 Mean 1.7 5.9 7.2 14.4 18.6 21.4 23.5 23.2 20.0 11.9 8.8 5.8 -----------------------------------------------------------------------------------------