St. Johns County, FL Climate

St. Johns County is located in Northeast Florida, and the climate there is warm and humid throughout the spring and summer months, with temperatures ranging from the mid-70s to the low 90s. In the winter months, temperatures tend to stay mild during the day but can drop into the 40s at night. Precipitation is fairly evenly distributed throughout the year, with around 62 inches of rain falling every year on average. The area also experiences tropical storms and hurricanes during hurricane season (typically June through November).

St. Johns County, Florida gets 51 inches of rain, on average, per year. The US average is 38 inches of rain per year.

St. Johns County averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 224 sunny days per year in St. Johns County. The US average is 205 sunny days.

St. Johns County gets some kind of precipitation, on average, 117 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 91 degrees
Winter Low: the January low is 45
Rain: averages 51 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for St. Johns County is 7.3 (10=best), which means it is one of the most pleasant places in Florida.

3.8 Summer - 8.7 Winter

April, November and March are the most pleasant months in St. Johns County, while July and August are the least comfortable months.

Climate	St. Johns, Florida	United States
	50.5 in.	38.1 in.
	0.0 in.	27.8 in.
	117.0 days	106.2 days
	224 days	205 days
	90.6°	85.8°
	45.4°	21.7°
	7.3	7
	5.7	4.3
	19 ft.	2443 ft.

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for St. Johns County with an average high temperature of 90.6°, which ranks it as about average compared to other places in Florida. In St. Johns County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Johns County are April, October and November.

In St. Johns County, there are 55.8 days annually when the high temperature is over 90°, which is cooler than most places in Florida.

January has the coldest nighttime temperatures for St. Johns County with an average of 45.4°. This is colder than most places in Florida.

In St. Johns County, there are 6.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Florida.

In St. Johns County, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Florida.

Humidity in St. Johns County can be oppressive in the summer, but pleasant for much of the year. The humidity here has been described as stifling in August and July. The humid season extends from May-October and the most comfortable months are November-April.

September is the wettest month in St. Johns County with 7.6 inches of rain, and the driest month is November with 2.4 inches. The wettest season is Autumn with 37% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 50.5 inches in St. Johns County means that it is one of the driest places in Florida.

August is the rainiest month in St. Johns County with 14.9 days of rain, and April is the driest month with only 5.8 rainy days. There are 117.0 rainy days annually in St. Johns County, which is rainier than most places in Florida. The rainiest season is Autumn when it rains 36% of the time and the driest is Summer with only a 18% chance of a rainy day.

There is rarely any recorded snowfall in St. Johns County, ranking it as one of the least snowy places in Florida. Any measurable snowfall is a rare occurance in St. Johns County.

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