In terms of precipitation, rainfall in Palmerston North ranges from 2.4 - 3.5 inches per month. June is typically the wettest month, when rainfall can reach 3.5 in. March is typically the driest time to visit Palmerston North when rainfall is around 2.4 in.
If weather is an important factor for your trip to Palmerston North, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 48.2 F).