A Gardener's Guide to Frost
totototo@telus.net (Fri, 16 Nov 2007 12:22:15 PST)
On 13 Nov 07, at 15:24, Judy Glattstein wrote:
..."Bliss Formula" to wit: "At 1/2 hour after sunset, note air
temperature (a) and dew point temperature (b). Add these temperatures
and multiply the sum by .31 to get the lowest temperature likely (c). (a
+ b) x .31 = c"
Those would Fahrenheit temperatures, presumably.
--
Rodger Whitlock
Victoria, British Columbia, Canada
Maritime Zone 8, a cool Mediterranean climate
on beautiful Vancouver Island