Lake Lanier Georgia Statistics

Pertinent data for Lake Lanier (volumes, shoreline estimates, etc). Latest ACoE data and 5 week forecast (PDF).
ACoE graph of lake elevation for the last 365 days. Real-time water data for Buford Dam.
Graph of the lake elevation for the life of the project. More graphs and trivia.
Buford Dam water release info: 770-945-1466. Lake Lanier info: 770-945-1467.
How can inflow be negative? Answer here. ACF basin diagram (PDF)

With the exception of the values for the change in 12 AM and 6 AM levels, all lake
level values to the right of the decimal point are 100'ths of a foot.

Lake Allatoona data now available (full pool rule still needs work)

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Hey, check out the nifty new graph!

Lake Lanier Georgia Statistics Last Updated on 01-25-2026 at 5:05 PM
12:00 AM Pool Level	1065.52 MSL (up 0.24" since yesterday)
6:00 AM Pool Level	1065.53 MSL (up 0.48" since yesterday)
Full Pool Level	1070.00 MSL (-4.48' deficit at 12:00 AM)
Average 12:00 AM Level	1066.43 MSL (this day, past 66 years)
Next Record High	0.00' (1065.52 MSL on 2026-01-25)
Next Record Low	-0.05' (1065.47 MSL on 2026-01-21)
Inflow	1355 CFS
Outflow	1018 CFS (337 CFS surplus)
Power Generation	101 MWH
Rainfall (6AM-6AM)	0.00 Inches
All data comes from the Army Corps of Engineers. Data is normally updated by the ACoE around 7:30 AM CST, this page at 9:05 AM EST MSL = Mean Sea Level, CFS = Cubic Feet per Second, MWH = Megawatt Hours

Flow Rate Conversions Last Updated on 01-25-2026 at 5:05 PM
	Cubic Feet Per Second	Gallons Per Second	Gallons Per Minute	Gallons Per Hour	Gallons Per Day
Inflow	1355	10,136	608,166	36,489,973	875,759,373
Outflow	1018	7,615	456,910	27,414,607	657,950,584
Difference	337	2,520	151,256	9,075,366	217,808,788

Lake Lanier Records Last Updated on 01-25-2026 at 5:05 PM
	Monthly	Yearly	Record	Last*
12:00 AM Full Pool High	1065.52 MSL on 2026-01-25	1065.52 MSL on 2026-01-25	1077.15 MSL on 1964-04-14	1065.52 MSL on 2026-01-17 (8 days ago)
12:00 AM Full Pool Low	1064.26 MSL on 2026-01-09	1064.26 MSL on 2026-01-09	1050.79 MSL on 2007-12-26	1065.5 MSL on 2026-01-24 (1 days ago)
6:00 AM Full Pool High	1065.53 MSL on 2026-01-25	1065.53 MSL on 2026-01-25	1077.17 MSL on 1964-04-14	1065.58 MSL on 2025-11-11 (75 days ago)
6:00 AM Full Pool Low	1064.27 MSL on 2026-01-09	1064.27 MSL on 2026-01-09	728 MSL on 2023-10-14	1065.49 MSL on 2026-01-24 (1 days ago)
Inflow Low	215 CFS on 2026-01-05	215 CFS on 2026-01-05	-2529 CFS on 2005-02-01	993 CFS on 2026-01-24 (1 days ago)
Inflow High	14207 CFS on 2026-01-11	14207 CFS on 2026-01-11	56913 CFS on 1961-12-12	1383 CFS on 2026-01-23 (2 days ago)
Outflow Low	836 CFS on 2026-01-03	836 CFS on 2026-01-03	-1733 CFS on 2019-08-05	993 CFS on 2026-01-24 (1 days ago)
Outflow High	1269 CFS on 2026-01-04	1269 CFS on 2026-01-04	9827 CFS on 1990-02-26	1020 CFS on 2026-01-23 (2 days ago)
Generation Low	101 MWH on 2026-01-25	101 MWH on 2026-01-25	0 MWH on 1960-07-01	0 MWH on 2024-10-25 (457 days ago)
Generation High	280 MWH on 2026-01-15	280 MWH on 2026-01-15	2554 MWH on 1990-02-26	182 MWH on 2026-01-24 (1 days ago)
Rainfall Low	0 Inches on 2026-01-01	0 Inches on 2026-01-01	-4 Inches on 2018-02-01	0 Inches on 2026-01-24 (1 days ago)
Rainfall High	0 Inches on 2026-01-25	0 Inches on 2026-01-25	5.9 Inches on 2000-08-02	1 Inches on 2025-06-13 (226 days ago)
* 'Last' means the last date the item of interest was lower or higher than the value for today. Example: the current 6AM full pool level is 1070.00 on January 1st, 2007, and the lake level has been slowly lowering. If the last date the lake was at 1070.00 was exactly two years ago, January 1st, 2005 will be displayed. This display is not intuitive, so feel free to email jcwren@jcwren.com with any suggestions.
All data comes from the Army Corps of Engineers. Data is normally updated by the ACoE around 7:30 AM CST, this page at 9:05 AM EST MSL = Mean Sea Level, CFS = Cubic Feet per Second, MWH = Megawatt Hours