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John Martin Reservoir water level history

Daily records since 1993 · Level today: 3,805.62 ft

Highest on record
3,860.43 ft
May 9, 1999
Lowest on record
1,669.32 ft
Jul 21, 1993
Today
3,805.62 ft
Oct 21, 2026
Years of data
34
since 1993

In short

Across 30 complete years, 2006 had the lowest average level (3,799.78 ft) and 1999 the highest (3,850.82 ft).

On average the lake is lowest in October (3,813.12 ft) and highest in March (3,822.82 ft).

John Martin Reservoir level, all years

Loading chart…

Measured Normal range for the date (middle 50% of past years) Full pool

Lowest years

Years ranked by their lowest daily level.

Yearly highs and lows

YearAverageLowLow dateHighHigh date
2026 (292 days)3,806.563,800.95Sep 203,812.61Apr 14
20253,808.813,800.07Oct 293,819.13Apr 15
20243,807.813,799.50Oct 313,814.59Apr 3
20233,807.493,802.00Oct 13,823.30Jul 23
20223,802.763,797.23Oct 183,810.01Apr 19
20213,807.833,799.72Oct 293,816.55Jun 5
20203,815.593,806.42Nov 13,826.70Apr 6
20193,827.713,817.14Oct 283,834.82Apr 15
20183,839.113,828.71Oct 313,849.75Mar 19
20173,837.283,825.10Jan 13,845.26Dec 31
20163,833.613,822.09Nov 13,842.25Mar 8
20153,829.333,803.08Jan 13,850.45Jul 15
20143,803.343,794.48Oct 313,810.84Apr 14
20133,802.323,798.63Aug 43,805.33Apr 9
20123,803.363,799.16Oct 223,811.25Apr 15
20113,804.133,795.01Sep 253,814.91Apr 3
20103,811.323,802.07Sep 203,821.33Apr 19
20093,811.213,802.11Oct 313,819.53Apr 19
20083,809.033,799.71Aug 93,815.41Mar 24
20073,810.473,801.39Oct 93,820.59Jun 24
20063,799.783,790.15Aug 133,808.64Apr 10
20053,805.033,794.98Aug 183,818.98Apr 20
20043,800.343,792.47Jul 133,807.93Mar 25
2003 (321 days)3,804.293,800.65Oct 313,809.65Apr 13
2002 (296 days)3,812.003,801.65Oct 223,821.15Apr 10
20013,824.223,810.98Oct 293,834.14Apr 11
20003,839.783,824.76Oct 273,852.28Feb 22
19993,850.823,845.08Jan 13,860.43May 9
19983,847.363,841.91Oct 303,852.11Apr 28
19973,846.383,839.82Jan 133,851.78Dec 22
19963,843.153,828.21Nov 173,849.66Mar 18
19953,836.913,819.88Jan 13,853.76Jul 25
19943,819.333,748.94May 253,830.55Jun 15
1993 (274 days)3,793.321,669.32Jul 213,821.87Jun 24

Levels in feet. Partial years show the number of days with data.

Monthly averages

MonthAverageLowestHighest
January3,819.293,772.893,851.86
February3,821.143,780.313,852.28
March3,822.823,804.483,852.17
April3,822.743,796.993,852.11
May3,818.542,305.653,860.43
June3,821.773,793.003,856.73
July3,815.901,669.323,853.76
August3,815.713,775.013,852.86
September3,813.953,791.203,851.55
October3,813.123,791.703,850.28
November3,814.573,793.713,850.92
December3,817.153,798.543,851.78

Download

Daily levels as CSV (12,137 rows; credit the original agencies listed below)