Environmental Atlas of the Lake Pontchartrain Basin

	Physical Environments: Climate | Hurricane History | Circulation | Wave Climate | Relative Sea Level | Relative Sea Level Rise

Physical Environments - Climate

• Introduction
• New Orleans Climate History 1954-2000
• Baton Rouge Climate History 1960-2000
• Covington Climate History 1930-2000
• Slidell Climate History 1960-2000
• Plaquemines Climate History 1960-2000
• Buras Climate History 1948-2000
• National Data Buoy Climate History 1981-1993

	New Orleans Climate Records: Record High: 39°C (102°F) August 22, 1980 Record Low: -12°C (11°F) December 23, 1989 Record Monthly Precipitation: 53.79 cm (21.18 in) May 1995
Figure 1: Record high and low temperatures and record monthly precipitation for the New Orleans area.

Figure 2: Average monthly high and low temperatures (°F) for the New Orleans area for the years 1954-2000.

Figure 3: Average monthly precipitation and number of rain days for the New Orleans area for the years 1954-2000.

Figure 4: Rose diagram for the New Orleans area for the years 1961-1980. Vectors on a wind rose indicate the frequency of occurrence with wind coming from a given direction. The length of a vector reflects total percentage of hours with winds from a certain direction. Center circle represents the frequency of a "calm" wind. Concentric circles extending outward from center represent a five-percent increase.

Source and Acknowledgement: Historical climate data were provided by the Southern Regional Climate Center, Baton Rouge. Their contribution and cooperation in the project is greatly appreciated.