Grand Coteau, LA
Climate overview — based on NOAA 1991-2020 normals from GRAND COTEAU, LA US.
Year-round temperatures (°F)
Climate summary
Grand Coteau has an annual average temperature of 68.3°F with about 61.6 inches of precipitation per year. The warmest month is August (average high 92.0°F), and the coldest is January (average low 41.4°F). June is typically the wettest month (6.97 in) and March the driest (3.75 in).
Best time to visit Grand Coteau
Full guide →Climate change signal
All-time records →18 of 366 (4.9%) of Grand Coteau's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1890s | 9 | |
| 1900s | 38 | |
| 1910s | 77 | |
| 1920s | 56 | |
| 1930s | 51 | |
| 1940s | 17 | |
| 1950s | 16 | |
| 1960s | 14 | |
| 1970s | 4 | |
| 1980s | 12 | |
| 1990s | 14 | |
| 2000s | 37 | |
| 2010s | 10 | |
| 2020s | 11 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 63.5°F | 41.4°F | 52.5°F | 6.54 in | — | 9 |
| February | 67.2°F | 44.7°F | 56.0°F | 4.51 in | — | 8 |
| March | 73.5°F | 50.7°F | 62.1°F | 3.75 in | — | 8 |
| April | 79.4°F | 56.8°F | 68.1°F | 5.34 in | — | 7 |
| May | 85.5°F | 64.5°F | 75.0°F | 5.72 in | — | 8 |
| June | 90.2°F | 70.4°F | 80.3°F | 6.97 in | — | 10 |
| July | 91.6°F | 72.6°F | 82.1°F | 4.41 in | — | 10 |
| August | 92.0°F | 72.3°F | 82.1°F | 4.36 in | — | 10 |
| September | 88.3°F | 67.7°F | 78.0°F | 5.14 in | — | 10 |
| October | 81.2°F | 57.8°F | 69.5°F | 5.04 in | — | 8 |
| November | 71.4°F | 48.3°F | 59.9°F | 4.97 in | — | 9 |
| December | 65.1°F | 43.3°F | 54.2°F | 4.88 in | — | 10 |
Climate twins of Grand Coteau
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).