Yes. The bottom of the hole stays 55°-58° (F.) year round. PoleCrete™ Stabilizer is formulated to react at this temperature.
We recommend drilling the hole just prior to setting the pole. If this is not possible, cover the hole with a tarp to prevent wind, snow, or rain from blowing in until you are ready to set the pole.
If the hole is left uncovered and freezes, you can still use the foam. Simply put a fire in the hole to warm it. Light a kerosene-soaked rag and throw it in the hole. When the fire goes out, set the pole in, plumb it, mix the PoleCrete Stabilizer, and pour the mixture in the hole.
In ten minutes the foam is hard enough to hold the pole, so you can move to the next pole. Springtime revisits are not needed.