Fort Gibson, OK has a humid subtropical climate with hot summers and mild winters. The average high temperatures in the summer months range from 88掳F to 95掳F while winter temperatures are usually between 34掳F and 48掳F. Precipitation is common throughout the year with an annual average of 44 inches of rain and 10 inches of snowfall. During the spring months, there is an increase in thunderstorms as warm moist air from the Gulf of Mexico moves northward across the region.
Fort Gibson (zip 74434), Oklahoma gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Fort Gibson (zip 74434) averages 6 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 229 sunny days per year in Fort Gibson (zip 74434). The US average is 205 sunny days.
Fort Gibson (zip 74434) gets some kind of precipitation, on average, 78 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 93 degrees
Winter Low: the January low is 28
Rain: averages 46 inches of rain a year
Snow: averages 6 inches of snow a year