Cotton Valley, LA climate
Cotton Valley has mild winters and hot summers, with plenty of rain. A typical July afternoon reaches 93°, a January night drops to 35°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Cotton Valley feels like
Winter
Spring
Summer
Fall
Cotton Valley 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 | 56° | 35° | 4.8" | 0.5" | 9 | 0 | 41° – 52° |
| February | 60° | 39° | 4.7" | 0.2" | 8 | 0 | 41° – 58° |
| March | 69° | 45° | 5.4" | 0 | 9 | 0 | 51° – 65° |
| April | 76° | 52° | 5.0" | 0 | 7 | 0 | 59° – 69° |
| May | 83° | 61° | 4.9" | 0 | 8 | 0 | 69° – 78° |
| June | 90° | 69° | 4.5" | 0 | 8 | 0 | 76° – 84° |
| July | 93° | 72° | 3.8" | 0 | 7 | 0 | 79° – 87° |
| August | 93° | 71° | 3.5" | 0 | 6 | 0 | 78° – 89° |
| September | 88° | 65° | 3.7" | 0 | 7 | 0 | 73° – 83° |
| October | 77° | 53° | 4.7" | 0 | 6 | 0 | 61° – 71° |
| November | 66° | 43° | 4.2" | 0 | 8 | 0 | 50° – 59° |
| December | 58° | 37° | 5.3" | 0 | 8 | 0 | 38° – 54° |
| Year | 76° | 53° | 54.5" | 0.7" | 89 | 1 |
“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 Cotton Valley
Cotton Valley gets 54 inches of rain and melted snow a year. March is the wettest month and August the driest. Rain or snow falls on about 89 days a year.
About 241 frost-free days a year
In half of years the last 32° night comes by March 17 and the first one by November 14. That leaves about 241 frost-free days for gardens, longer than 89% of U.S. towns.
Heating and cooling a home in Cotton Valley
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Cotton Valley, 48% of that work is heating and 52% is cooling.
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.
How Cotton Valley 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 Cotton Valley averaged 0.7° warmer than the 1900s. The biggest change is in March (+1.2°). The shift is smaller than in 92% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Cotton Valley’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 41° to 58°. June is the most reliable, staying within 8°.
Common questions about Cotton Valley’s climate
What is the coldest month in Cotton Valley?
January, with a typical high of 56° and a low of 35°.
What is the hottest month in Cotton Valley?
August, with a typical high of 93° and a low of 71°. About 88 days a year reach 90°.
How much snow does Cotton Valley get?
Almost none. A normal year brings 0.7 inches.
When is the first frost in Cotton Valley?
In half of years the first 32° night comes by November 14, and the last spring frost by March 17.
What is the rainiest month in Cotton Valley?
March, with 5.4 inches of rain and melted snow. The year totals 54 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Cotton Valley itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cotton Valley 5 Nnw, LA (5 mi, snow) and Minden, LA (16 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.