Average Weather in New Iberia Louisiana, United States
In New Iberia, the summers are long, hot, and oppressive; the winters are short, cold, and windy; and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 44°F to 90°F and is rarely below 31°F or above 95°F.
Based on the tourism score, the best times of year to visit New Iberia for warm-weather activities are from late March to mid May and from late September to late October.
The hot season lasts for 4.3 months, from May 19 to September 27, with an average daily high temperature above 85°F. The hottest day of the year is August 12, with an average high of 90°F and low of 75°F.
The cool season lasts for 2.8 months, from December 2 to February 25, with an average daily high temperature below 67°F. The coldest day of the year is January 23, with an average low of 44°F and high of 62°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
El Hamma, Tunisia (5,692 miles away); Longmen, China (8,162 miles); and Roxby Downs, Australia (9,564 miles) are the far-away foreign places with temperatures most similar to New Iberia (view comparison).
In New Iberia, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in New Iberia begins around September 15 and lasts for 3.0 months, ending around December 16. On October 26, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 68% of the time, and overcast or mostly cloudy 32% of the time.
The cloudier part of the year begins around December 16 and lasts for 9.0 months, ending around September 15. On July 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 56% of the time, and clear, mostly clear, or partly cloudy 44% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in New Iberia varies significantly throughout the year.
The wetter season lasts 3.3 months, from June 2 to September 11, with a greater than 40% chance of a given day being a wet day. The chance of a wet day peaks at 58% on July 8.
The drier season lasts 8.7 months, from September 11 to June 2. The smallest chance of a wet day is 23% on October 28.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 58% on July 8.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. New Iberia experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in New Iberia. The most rain falls during the 31 days centered around June 27, with an average total accumulation of 6.1 inches.
The least rain falls around March 8, with an average total accumulation of 3.9 inches.
Average Monthly Rainfall
The length of the day in New Iberia varies significantly over the course of the year. In 2019, the shortest day is December 21, with 10 hours, 13 minutes of daylight; the longest day is June 21, with 14 hours, 5 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:05 AM on June 11, and the latest sunrise is 1 hour, 18 minutes later at 7:23 AM on March 10. The earliest sunset is at 5:06 PM on December 2, and the latest sunset is 3 hours, 6 minutes later at 8:12 PM on June 30.
Daylight saving time (DST) is observed in New Iberia during 2019, starting in the spring on March 10, lasting 7.8 months, and ending in the fall on November 3.
Sunrise & Sunset with Twilight and Daylight Saving Time
New Iberia experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 6.5 months, from April 11 to October 26, during which time the comfort level is muggy, oppressive, or miserable at least 29% of the time. The muggiest day of the year is July 22, with muggy conditions 99% of the time.
The least muggy day of the year is January 23, with muggy conditions 6% of the time.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in New Iberia experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 7.5 months, from October 5 to May 22, with average wind speeds of more than 8.6 miles per hour. The windiest day of the year is February 19, with an average hourly wind speed of 10.8 miles per hour.
The calmer time of year lasts for 4.5 months, from May 22 to October 5. The calmest day of the year is August 13, with an average hourly wind speed of 6.3 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in New Iberia varies throughout the year.
The wind is most often from the south for 5.1 months, from February 21 to July 25 and for 3.7 weeks, from August 3 to August 29, with a peak percentage of 56% on June 2. The wind is most often from the east for 2.4 months, from August 29 to November 10, with a peak percentage of 39% on September 20. The wind is most often from the north for 3.4 months, from November 10 to February 21, with a peak percentage of 38% on January 1.
New Iberia is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average water temperature experiences significant seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.9 months, from May 30 to September 27, with an average temperature above 81°F. The day of the year with the warmest water is July 29, with an average temperature of 86°F.
The time of year with cooler water lasts for 3.3 months, from December 8 to March 17, with an average temperature below 65°F. The day of the year with the coolest water is January 28, with an average temperature of 60°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in New Iberia throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit New Iberia for general outdoor tourist activities are from late March to mid May and from late September to late October, with a peak score in the last week of April.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit New Iberia for hot-weather activities are from early May to late June and from late August to late September, with a peak score in the last week of May.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in New Iberia typically lasts for 10 months (306 days), from around February 8 to around December 12, rarely starting after March 11, or ending before November 19.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in New Iberia should appear around January 17, only rarely appearing before January 11 or after January 28.
Growing Degree Days
The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.
The brighter period of the year lasts for 2.8 months, from March 31 to June 23, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest day of the year is May 19, with an average of 6.6 kWh.
The darker period of the year lasts for 2.5 months, from November 17 to February 1, with an average daily incident shortwave energy per square meter below 3.7 kWh. The darkest day of the year is December 24, with an average of 3.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of New Iberia are 30.004 deg latitude, -91.819 deg longitude, and 13 ft elevation.
The topography within 2 miles of New Iberia is essentially flat, with a maximum elevation change of 23 feet and an average elevation above sea level of 14 feet. Within 10 miles is essentially flat (144 feet). Within 50 miles also contains only modest variations in elevation (148 feet).
The area within 2 miles of New Iberia is covered by artificial surfaces (66%) and cropland (31%), within 10 miles by cropland (72%) and herbaceous vegetation (22%), and within 50 miles by herbaceous vegetation (43%) and cropland (34%).
This report illustrates the typical weather in New Iberia, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in New Iberia.
For each station, the records are corrected for the elevation difference between that station and New Iberia according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at New Iberia is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between New Iberia and a given station.
The stations contributing to this reconstruction are: Acadiana Regional Airport (90%, 7 kilometers, northwest); Salt Point (3.9%, 57 kilometers, southeast); Harry P Williams Memorial Airport (3.9%, 57 kilometers, southeast); and Baton Rouge Metropolitan Airport (2.0%, 88 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .