Share. Flea and tick collars vary in their active ingredient. Often, these collars contain amitraz (a chemical that is an alpha2-adrenergic agonist and monoamine oxidase inhibitor), organophosphates or carbamates, or pyrethrins/pyrethroids. Please see each individual active ingredient for more information.
The mean minimum temperature for May 2012 at Adelaide (Kent Town) was 9.3 C, 0.9 C below the long term May average of 10.2 C. This resulted in the coolest May since 2006. By comparison, May 2011 saw minimum temperature for the month average 10.0 C.
May Weather in Vancouver Island Vancouver Island temperatures in May are similar to that of Vancouver and the Lower Mainland. The average high temperature for Victoria, BC is 16 C (61 F) and the low is 8 C (46 F), for an average May temperature of 12 C (54 F).2 mm. On average, there are about 12 rain days in Vancouver for the month of May (but for most of those, the amount is only about 3 or 4 mm). Precipitation is usually in the form of rain, although it can still snow in the higher elevations of North & West Vancouver in May.