This is for the crime scene:
We know that Christine was a
tiny female weighing approximately 40 lbs, with little to no body fat. Her remains were found in a cool place, a copse, laying on (partial) bare earth partially skeletonized and mummified.
The Cadaver Decompositon island can be found here
http://www.pawsoflife.org/Library/HRD/Aitkenhead_Peterson_2011.pdf
From October 3 1984 until Christine was found 3 months later The temperatures were unusually mild, with a few rain falls. The first rain fall occurred 15 days after Christine went missing with 1.00 CM of rain. The highs for October were up to 17C with the low’s being -1.0C. For November the high was 15.1 with low’s being -13.3C For December the high being -1.8C and the lowest being -14.1C. For December 31 1984 the day time temp -1.0 dropping to -6.5C overnight.
Barrie temperatures were used since Queensville Ont is not in the data base. The link is below.
http://www.almanac.com/weather/history/ON/Barrie/1984-10-10
Taking into consideration for a human body to decompose are:
 Temperature;
 The availability of oxygen;
 Prior embalming;
 Cause of death;
 Burial, depth of burial, and soil type;
 Access by scavengers;
 Trauma, including wounds and crushing blows;
 Humidity, or wetness;
 Rainfall;
 Body size and weight;
 Clothing;
 The surface on which the body rests;
 Foods/objects inside the specimen's digestive tract (bacon compared to lettuce).
Decomposition - Wikipedia, the free encyclopedia
One of the most through: A THESIS FOR M.D. (FORENSIC MEDICINE)
GOVT. MEDICAL COLLEGE, PATIALA AKASH DEEP AGGARWAL can be found here, taking into account all the seasons. If anyone has a sensitive nature please forego looking at the pictures. Pages 17 and 70 and 84 are of interest, as is the entire thesis.
http://www.anilaggrawal.com/ij/vol_006_no_002/others/thesis/akash_thesis.pdf