Old Jefferson, Louisiana Climate
United States
Pop. 6,980 Elev. 11 m / 36 ft
TZ: America/Chicago (UTC-5) ·
Summers in Old Jefferson are warm, with August highs around 92°F (33°C), while winters are cool with January lows of 40°F (4°C). Humidity pushes the summer feels-like temperature to around 117°F (47°C). Expect around 63 rainy days annually (47.0 in / 1193 mm total), with snow on 1 days and 4 in (90 mm) of annual accumulation. The city averages 152 sunny days per year and around 54 thunderstorm days. Ocean water temperatures reach 89°F (32°C) in summer.
| Temperature | 92°F (33°C) high | 40°F (4°C) low |
| Feels like | 117°F (47°C) high | 40°F (4°C) low |
| Rain | 63 days | 47.0 in (1193 mm) /yr |
| Snow | 1 days | 3.5 in (90 mm) /yr |
| Sky | 152 sunny | 54 stormy |
| Wind | 1.8 mph (0.8 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Apr, Oct, Nov, Dec
Sky & Air by Month
Cloud cover (%)
56
Jan 59
Feb 47
Mar 48
Apr 59
May 59
Jun 54
Jul 49
Aug 37
Sep 28
Oct 36
Nov 52
Dec Humidity (%)
66
Jan 73
Feb 65
Mar 73
Apr 77
May 79
Jun 79
Jul 75
Aug 65
Sep 66
Oct 72
Nov 77
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 13 mi Baton Rouge Metropolitan Airport (BTR)
Ski resort 426 mi Cloudmont Ski Hill
National park 83 mi Natchez National Historical Park
Hospital 1 mi Woman's Hospital
Hiking trail 3 mi Poplar-Pine Loop
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 59°F 15°C | 40°F 4°C | 3.5 in 89 mm | 3.5 in90 mm | 11 |
| February | 69°F 21°C | 50°F 10°C | 5.1 in 130 mm | — | 8 |
| March | 76°F 25°C | 54°F 12°C | 4.3 in 108 mm | — | 12 |
| April | 81°F 27°C | 63°F 17°C | 4.5 in 116 mm | — | 11 |
| May | 84°F 29°C | 68°F 20°C | 6.9 in 176 mm | — | 7 |
| June | 89°F 32°C | 74°F 23°C | 4.6 in 116 mm | — | 10 |
| July | 91°F 33°C | 75°F 24°C | 4.9 in 125 mm | — | 12 |
| August | 92°F 33°C | 74°F 23°C | 3.4 in 87 mm | — | 10 |
| September | 91°F 33°C | 70°F 21°C | 1.3 in 33 mm | — | 18 |
| October | 83°F 29°C | 63°F 17°C | 5.1 in 129 mm | — | 22 |
| November | 74°F 23°C | 52°F 11°C | 0.8 in 19 mm | — | 18 |
| December | 67°F 19°C | 47°F 8°C | 2.6 in 66 mm | — | 13 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 11 | 2 |
| February | 8 | 4 |
| March | 12 | 4 |
| April | 11 | 6 |
| May | 7 | 7 |
| June | 10 | 10 |
| July | 12 | 10 |
| August | 10 | 4 |
| September | 18 | 2 |
| October | 22 | 3 |
| November | 18 | 1 |
| December | 13 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 61°F 16°C | 48°F 9°C |
| February | 63°F 17°C | 57°F 14°C |
| March | 71°F 22°C | 61°F 16°C |
| April | 80°F 26°C | 72°F 22°C |
| May | 84°F 29°C | 77°F 25°C |
| June | 87°F 31°C | 83°F 28°C |
| July | 89°F 32°C | 85°F 30°C |
| August | 89°F 32°C | 85°F 30°C |
| September | 86°F 30°C | 80°F 27°C |
| October | 83°F 28°C | 73°F 23°C |
| November | 71°F 22°C | 63°F 17°C |
| December | 65°F 19°C | 55°F 13°C |