Monroe, LA climate
Monroe has mild winters and hot summers, with plenty of rain. A typical July afternoon reaches 93°, a January night drops to 36°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Monroe feels like
Winter
Spring
Summer
Fall
Monroe 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 | 57° | 36° | 5.5" | 0 | 8 | 0 | 40° – 53° |
| February | 61° | 39° | 5.0" | 0 | 8 | 0 | 42° – 58° |
| March | 69° | 46° | 5.4" | 0 | 8 | 0 | 52° – 67° |
| April | 77° | 53° | 6.2" | 0 | 7 | 0 | 60° – 70° |
| May | 84° | 62° | 4.4" | 0 | 8 | 0 | 70° – 77° |
| June | 90° | 69° | 4.4" | 0 | 8 | 0 | 77° – 84° |
| July | 93° | 72° | 4.1" | 0 | 7 | 0 | 78° – 86° |
| August | 93° | 71° | 3.7" | 0 | 7 | 0 | 77° – 87° |
| September | 88° | 65° | 3.4" | 0 | 6 | 0 | 74° – 82° |
| October | 79° | 53° | 4.8" | 0 | 6 | 0 | 62° – 72° |
| November | 67° | 43° | 4.5" | 0 | 7 | 0 | 50° – 60° |
| December | 59° | 38° | 5.4" | 0.1" | 8 | 0 | 38° – 55° |
| Year | 77° | 54° | 56.8" | 0.1" | 87 | 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 Monroe
Monroe gets 57 inches of rain and melted snow a year. April is the wettest month and September the driest. Rain or snow falls on about 87 days a year.
About 253 frost-free days a year
In half of years the last 32° night comes by March 8 and the first one by November 15. That leaves about 253 frost-free days for gardens, longer than 91% of U.S. towns.
Heating and cooling a home in Monroe
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Monroe, 47% of that work is heating and 53% 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.
Monroe and its neighbors
Monroe borders 3 towns with climate data. January nights across them vary by 0.3°. West Monroe has both the coldest January nights (36°) and the hottest July afternoons (93°). Monroe’s January low is 36° and its July high 93°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Monroe 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 Monroe averaged 0.7° warmer than the 1900s. The biggest change is in March (+1.0°). The shift is smaller than in 88% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Monroe’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 38° to 55°. May is the most reliable, staying within 7°.
Common questions about Monroe’s climate
What is the coldest month in Monroe?
January, with a typical high of 57° and a low of 36°.
What is the hottest month in Monroe?
August, with a typical high of 93° and a low of 71°. About 97 days a year reach 90°.
How much snow does Monroe get?
Almost none. A normal year brings 0.1 inches.
When is the first frost in Monroe?
In half of years the first 32° night comes by November 15, and the last spring frost by March 8.
What is the rainiest month in Monroe?
April, with 6.2 inches of rain and melted snow. The year totals 57 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Monroe itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at West Monroe, LA (6 mi, snow) and Monroe Rgnl Airport, LA (2 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.