Old Jefferson, LA Climate


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The climate in Old Jefferson, LA is warm and subtropical. During the summer months temperatures can reach up to 90 degrees Fahrenheit, while during the winter months temperatures typically stay between 50 and 70 degrees Fahrenheit. The area experiences a lot of rain throughout the year and is also known for its high humidity levels. The area enjoys mild winters and hot summers, with occasional thunderstorms providing relief from the heat during the warmer months.

Old Jefferson, Louisiana gets 64 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Old Jefferson averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 218 sunny days per year in Old Jefferson. The US average is 205 sunny days.

Old Jefferson gets some kind of precipitation, on average, 108 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 92 degrees
Winter Low: the January low is 41
Rain: averages 64 inches of rain a year
Snow: averages 0 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Old Jefferson is 6.8 (10=best), which means it is less comfortable than most places in Louisiana.

3 Summer - 7.9 Winter
October, April and March are the most pleasant months in Old Jefferson, while July and August are the least comfortable months.

  ClimateOld Jefferson, LouisianaUnited States
  63.7 in.38.1 in.
  0.1 in.27.8 in.
  107.6 days106.2 days
  218 days205 days
  91.5°85.8°
  40.9°21.7°
  6.87
  5.94.3
  30 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 Old Jefferson with an average high temperature of 91.8°, which ranks it as cooler than most places in Louisiana. In Old Jefferson, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Old Jefferson are April, October and March.
In Old Jefferson, there are 81.2 days annually when the high temperature is over 90°, which is hotter than most places in Louisiana.
January has the coldest nighttime temperatures for Old Jefferson with an average of 40.9°. This is warmer than most places in Louisiana.
In Old Jefferson, there are 15.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Louisiana.
In Old Jefferson, 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 Old Jefferson 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.
August is the wettest month in Old Jefferson with 6.6 inches of rain, and the driest month is November with 4.4 inches. The wettest season is Autumn with 30% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 63.7 inches in Old Jefferson means that it is one of the wettest places in Louisiana.
July is the rainiest month in Old Jefferson with 12.3 days of rain, and April is the driest month with only 6.6 rainy days. There are 107.6 rainy days annually in Old Jefferson, which is rainier than most places in Louisiana. The rainiest season is Autumn when it rains 32% of the time and the driest is Summer with only a 21% chance of a rainy day.
An annual snowfall of 0.1 inches in Old Jefferson means that it is snowier than most places in Louisiana. December is the snowiest month in Old Jefferson with 0.0 inches of snow, and no months of the year have significant snowfall.
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