Bayou Blue, LA climate
Bayou Blue has warm winters and warm summers, with plenty of rain. A typical July afternoon reaches 91°, a January night drops to 44°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Bayou Blue feels like
Winter
Spring
Summer
Fall
Bayou Blue weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 64° | 44° | 5.2" | 0 | 13 | 0 | 47° – 61° |
| February | 68° | 48° | 3.8" | 0 | 10 | 0 | 48° – 68° |
| March | 73° | 53° | 4.1" | 0 | 9 | 0 | 57° – 71° |
| April | 79° | 59° | 4.6" | 0 | 8 | 0 | 64° – 74° |
| May | 85° | 67° | 5.1" | 0 | 9 | 0 | 73° – 79° |
| June | 90° | 73° | 7.2" | 0 | 15 | 0 | 79° – 84° |
| July | 91° | 74° | 7.6" | 0 | 18 | 0 | 81° – 85° |
| August | 91° | 74° | 7.4" | 0 | 16 | 0 | 79° – 86° |
| September | 88° | 71° | 5.8" | 0 | 11 | 0 | 77° – 83° |
| October | 81° | 61° | 4.2" | 0 | 8 | 0 | 67° – 76° |
| November | 72° | 51° | 3.7" | 0 | 8 | 0 | 56° – 66° |
| December | 66° | 46° | 4.6" | 0 | 10 | 0 | 50° – 64° |
| Year | 79° | 60° | 63.3" | 0.0" | 134 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Bayou Blue
Bayou Blue gets 63 inches of rain and melted snow a year. July is the wettest month and November the driest. Rain or snow falls on about 134 days a year.
About 311 frost-free days a year
In half of years the last 32° night comes by February 5 and the first one by December 14. That leaves about 311 frost-free days for gardens, longer than 95% of U.S. towns.
Heating and cooling a home in Bayou Blue
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Bayou Blue, 28% of that work is heating and 72% is cooling, so air conditioning is the bigger bill.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Bayou Blue and its neighbors
Bayou Blue borders 3 towns with climate data. January nights across them vary by 1.1°. Schriever has the coldest January nights (44°) and Gray the hottest July afternoons (91°). Bayou Blue’s January low is 44° and its July high 91°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Bayou Blue compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Bayou Blue averaged 1.1° warmer than the 1900s. The biggest change is in February (+1.6°). The shift is smaller than in 66% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Bayou Blue’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 48° to 68°. June is the most reliable, staying within 4°.
Common questions about Bayou Blue’s climate
What is the coldest month in Bayou Blue?
January, with a typical high of 64° and a low of 44°.
What is the hottest month in Bayou Blue?
July, with a typical high of 91° and a low of 74°. About 83 days a year reach 90°.
How much snow does Bayou Blue get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Bayou Blue?
In half of years the first 32° night comes by December 14, and the last spring frost by February 5.
What is the rainiest month in Bayou Blue?
July, with 7.6 inches of rain and melted snow. The year totals 63 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Bayou Blue itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Thibodaux 4 Se, LA (11 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.