Moree has warm summers, moderate and variable rainfall and a winter of cool clear days and cold frosty nights, with often a rapid transition of perhaps a month from summer to winter.
Average maximum temperatures range from 17oC-19oC in the winter to 33oC in the summer months. Average minimum temperatures range from between 4oC and 5oC in the winter to between 18oC and 20oC in the summer. In winter the minimum is below zero on an average of 10.4 days. In summer, on average, more than 25 days reach 35oC or higher. Records show a slight increase in the minimum temperature with time. At least part of this trend may be due to increased urbanisation.
The annual average rainfall for Moree is 585mm. Summer months usually provide the best falls, with the remaining months providing generally even falls. Summer rain tends to be more variable than winter rain due to the incidence of thunderstorms in summer. The highest daily rainfall recorded in Moree was 161.8mm on the 9th February 1888 and the highest monthly rainfall recorded was 461.3mm in March 1894. The highest annual rainfall recorded in Moree was 1107mm in 1894 and the lowest annual rainfall was 202.7mm in 1902.
Humidity in Moree is generally quite low. Winter frosts are quite common. Fogs are generally rare with only 1 or 2 days per month from May to September.