t-bulb reading of 16C, a dry-bulb of 16.5C, and a relative humidity of 95%. Major condensation within the caves was visible. The microclimate at this site will be inferred through literature on the climate of the Peterborough region.Part IV: Comparison of Sites and Previous Literature Understanding the climate of this region may help to understand the microclimates of the areas visited. Barnes (1965, p.136) states that “climatically the Otonabee Watershed lied in a ‘transition zone’ between the mild section of the Ontario lakeshore to the south and the more severe interior climatic region of Southern Ontario to the north east.”. Moderate temperatures are largely influence by the proximity of many lakes, and although small, they do have an effect. The number of frost-free days for the region is between 120 and 150 days with a mean monthly temperature of 6.4C (Barnes, 1965, p. 136). Precipitation averages 73.41cm annually, 79% of which is in the form of rain and 21% is in the form of snow. Snowfall occurs primarily between December and February and averages 15.19cm annually. The average evapotranspiration rate for the Otonabee Watershed is 52% of the total precipitation and when evapotranspiration rates exceed precipitation rates, soil moisture deficit results. (Otonabee Region Conservation Report, 1983, p. 8-4) The characteristics of climate have now been identified but some detail on how to apply this to microclimates was mentioned in Part I. ConclusionGenerally, the Peterborough region contains a gradient from exposed bedrock to high levels of glacial till. The complex geology and repeated glaciation of the area has developed a variety of glacial landforms such as drumlins, eskers, moraines, spillways, caves and kettles. Drumlins are by far the most common glacial landform in the area and Boyce and Eyles (1991, p. 787) state that: “Previous work in the area, based on limited subsurface data,...