That time of year again… -3C and falling this morning. This is cold enough to kill off any garden plant still standing above ground. We harvest peppers the day before. Phew!
The years of growing season with heavy frost (we define as -3C or colder) have been:
Year #weeks #days
2003 28 198
2004 29 201
2005 32 222
2006 no data no data
2007 22 153
2008 23 160
2009 26 179
2010 20 143
2011 24 167
2012 24 165
2013 24 168
2014 21 147
2015 21 147
2016 20 138
2017 23 160
min 20 138
average 24 168
median 24 163
max 32 222
stddev 4 24
The years of growing season with light frost (-1C) where plants can survive if covered have been:
Year #weeks #days
2003 25 176
2004 22 156
2005 22 156
2006 no data no data
2007 21 147
2008 22 154
2009 18 129
2010 17 119
2011 21 149
2012 23 162
2013 18 125
2014 18 124
2015 20 140
2016 19 130
2017 20 143
min 17 119
average 20 144
median 21 145
max 25 176
stddev 2 17