It is HIGHLY recommended to NEVER shave and or trim a Double Coated breed/Northern breed such as a Husky or Malamute in the summer months. Their double coat insulates them, their skin from the winter cold/snow as well as insulates them from the summer heat. IF THEIR COAT IS SHAVED/TRIMMED YOUR NORTHERN BREED CAN GET HEAT EXHAUSTION AND DIE!!
Other reasons to never trim/shave a northern (double coated breed) It can ruin their coat and it may never grow back the same as it was before (properly).
TRYING TO COOL YOUR DOUBLE COATED BREED OFF:
Please do NOT spray him or her with the garden hose. When the coat is wet/soaked it traps the heat in and does not allow the body to cool. This too can cause heat exhaustion.