St. James Parish, LA Climate

St. James, LA County has a humid subtropical climate with hot and humid summers, mild winters, and plenty of precipitation year-round. The average temperature in St. James ranges from the upper 30s in the winter to the low 90s in the summer. The area also experiences thunderstorms and tornadoes occasionally, particularly during the late spring and early summer months. Rainfall is abundant throughout the year, with an average of about 48 inches annually. Snow is rare but not unheard of during winter months. Overall, St. James enjoys a mild climate well suited for outdoor activities all year round.

St. James County, Louisiana gets 63 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 219 sunny days per year in St. James County. The US average is 205 sunny days.

St. James County gets some kind of precipitation, on average, 98 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 42
Rain: averages 63 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for St. James Parish is 6.9 (10=best), which means it is more comfortable than most places in Louisiana.

3 Summer - 8.1 Winter

October, April and November are the most pleasant months in St. James Parish, while July and August are the least comfortable months.

Climate	St. James, Louisiana	United States
	62.9 in.	38.1 in.
	0.1 in.	27.8 in.
	98.4 days	106.2 days
	219 days	205 days
	91.1°	85.8°
	41.6°	21.7°
	6.9	7
	5.7	4.3
	6 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.

August is the hottest month for St. James Parish with an average high temperature of 91.2°, which ranks it as cooler than most places in Louisiana. In St. James Parish, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. James Parish are April, October and November.

In St. James Parish, there are 70.2 days annually when the high temperature is over 90°, which is cooler than most places in Louisiana.

January has the coldest nighttime temperatures for St. James Parish with an average of 41.6°. This is warmer than most places in Louisiana.

In St. James Parish, there are 12.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Louisiana.

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

Humidity in St. James Parish can be stifling in the summer, but pleasant for most of the year. The most uncomfortably humid months are July, August and June. The humid season runs from May-September and the least humid months are October-April.

June is the wettest month in St. James Parish with 8.0 inches of rain, and the driest month is November with 4.1 inches. The wettest season is Autumn with 33% of yearly precipitation and 21% occurs in Winter, which is the driest season. The annual rainfall of 62.9 inches in St. James Parish means that it is wetter than most places in Louisiana.

July is the rainiest month in St. James Parish with 12.2 days of rain, and April is the driest month with only 5.5 rainy days. There are 98.4 rainy days annually in St. James Parish, which is less rainy than most places in Louisiana. The rainiest season is Autumn when it rains 36% of the time and the driest is Summer with only a 19% chance of a rainy day.

An annual snowfall of 0.1 inches in St. James Parish means that it is snowier than most places in Louisiana. December is the snowiest month in St. James Parish with 0.1 inches of snow, and no months of the year have significant snowfall.

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