The rain forests themselves will be quite a bit cooler -- they tend to average 80F&#x2F;27C, with temperatures rarely much higher than 92F&#x2F;33C.  I think it&#x27;s a side effect of the constant rain.<p>I&#x27;m not sure about your non-rain forests.  It&#x27;s possible they are seasonally operating at a loss -- storing sugars during the cool seasons and burning them during the hot seasons.