Overview Realtime Historical Map View
Extreme Heat Warning
2026-08-04T20:00:00-07:00

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 110 to 118. Major to Extreme Heat Risk. * WHERE...Yuma, La Paz, and Eastern Riverside Counties, including the Colorado River Valley. * WHEN...Until 8 PM MST /8 PM PDT/ Tuesday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death.

Colorado River Below Palo Verde Dam, Az-Ca Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 2271.67
01-02 2832.73
01-03 2443.83
01-04 2404.36
01-05 3125.83
01-06 2352.58
01-07 2710.92
01-08 2336.33
01-09 2745.67
01-10 2994.55
01-11 3520.0
01-12 3558.33
01-13 3349.25
01-14 3191.42
01-15 3111.36
01-16 3738.33
01-17 3643.08
01-18 3746.33
01-19 3673.46
01-20 3967.77
01-21 3830.0
01-22 3651.54
01-23 3950.0
01-24 3658.46
01-25 3790.0
01-26 4339.17
01-27 3946.0
01-28 3516.92
01-29 3532.31
01-30 3072.14
01-31 3286.5
02-01 3687.93
02-02 3632.86
02-03 3933.57
02-04 3981.36
02-05 4777.14
02-06 4128.46
02-07 5917.46
02-08 4845.69
02-09 4837.43
02-10 4827.36
02-11 5140.85
02-12 4949.57
02-13 5150.79
02-14 5404.36
02-15 5600.21
02-16 5888.86
02-17 5850.0
02-18 6373.85
02-19 5931.54
02-20 6330.71
02-21 6117.86
02-22 6415.71
02-23 6852.36
02-24 6616.43
02-25 6854.17
02-26 6675.38
02-27 7839.29
02-28 6192.93
02-29 7665.0
03-01 6982.14
03-02 7385.0
03-03 7673.57
03-04 7689.29
03-05 7677.86
03-06 7068.0
03-07 7713.57
03-08 7510.71
03-09 7567.14
03-10 7880.71
03-11 8112.14
03-12 7695.71
03-13 8569.29
03-14 8317.57
03-15 7728.57
03-16 7487.14
03-17 8498.57
03-18 8087.14
03-19 8208.0
03-20 7891.43
03-21 8004.67
03-22 8825.71
03-23 8380.67
03-24 8852.0
03-25 9258.67
03-26 9513.33
03-27 9824.0
03-28 9683.33
03-29 9628.0
03-30 10232.0
03-31 9489.29
04-01 9460.67
04-02 10072.0
04-03 9316.67
04-04 9596.0
04-05 9763.33
04-06 9277.14
04-07 10280.67
04-08 9448.67
04-09 9520.71
04-10 9774.67
04-11 9561.33
04-12 8835.71
04-13 10005.71
04-14 10387.86
04-15 10780.0
04-16 10090.77
04-17 10426.15
04-18 10255.38
04-19 10183.85
04-20 10362.31
04-21 10591.43
04-22 9757.86
04-23 10591.43
04-24 10687.14
04-25 10432.31
04-26 10260.71
04-27 10099.29
04-28 10076.43
04-29 9570.0
04-30 8683.85
05-01 9146.67
05-02 9225.71
05-03 9240.71
05-04 9350.67
05-05 9208.67
05-06 9127.33
05-07 8918.67
05-08 8840.71
05-09 8642.67
05-10 8589.29
05-11 9021.33
05-12 8928.67
05-13 8902.0
05-14 8780.0
05-15 9250.0
05-16 8772.86
05-17 8836.43
05-18 8678.0
05-19 8283.57
05-20 8370.0
05-21 8817.14
05-22 8419.33
05-23 8394.0
05-24 8370.67
05-25 8187.33
05-26 7832.0
05-27 8042.67
05-28 8386.0
05-29 7886.0
05-30 8607.33
05-31 8498.67
06-01 8127.33
06-02 8224.0
06-03 8406.0
06-04 8890.0
06-05 7869.29
06-06 8323.57
06-07 9071.43
06-08 8581.33
06-09 8118.0
06-10 8104.0
06-11 9227.33
06-12 8957.86
06-13 9015.71
06-14 8337.86
06-15 8575.0
06-16 8158.0
06-17 7954.0
06-18 8252.67
06-19 7447.14
06-20 8470.0
06-21 8147.14
06-22 8591.43
06-23 7577.14
06-24 8344.29
06-25 8626.43
06-26 8156.43
06-27 8514.29
06-28 8532.86
06-29 8252.86
06-30 8297.86
07-01 7944.29
07-02 8587.14
07-03 8347.86
07-04 8230.77
07-05 8002.0
07-06 7881.33
07-07 7370.0
07-08 7554.29
07-09 7559.29
07-10 7394.0
07-11 7540.67
07-12 7537.86
07-13 7200.0
07-14 7816.0
07-15 7502.67
07-16 7404.29
07-17 6864.0
07-18 7757.86
07-19 7530.67
07-20 7683.33
07-21 6838.0
07-22 6833.57
07-23 6926.67
07-24 6920.67
07-25 7146.67
07-26 6776.0
07-27 7032.67
07-28 6694.0
07-29 6772.07
07-30 7051.33
07-31 6304.67
08-01 6786.92
08-02 6464.29
08-03 6167.86
08-04 5755.71
08-05 5765.0
08-06 6178.57
08-07 6732.86
08-08 6258.46
08-09 5936.92
08-10 6272.31
08-11 6096.43
08-12 5968.86
08-13 6178.46
08-14 6148.57
08-15 6564.29
08-16 6128.46
08-17 6064.17
08-18 5263.33
08-19 5586.15
08-20 5747.69
08-21 5736.92
08-22 5664.69
08-23 5478.57
08-24 5196.92
08-25 5343.08
08-26 4962.86
08-27 5096.43
08-28 5275.71
08-29 5264.29
08-30 5339.23
08-31 5719.23
09-01 5509.29
09-02 5439.29
09-03 5785.71
09-04 5898.57
09-05 5596.43
09-06 5277.86
09-07 5467.14
09-08 5009.29
09-09 4925.07
09-10 4976.43
09-11 5422.14
09-12 5180.0
09-13 5713.85
09-14 5350.71
09-15 5506.43
09-16 5099.23
09-17 5365.71
09-18 5715.71
09-19 5932.14
09-20 5827.86
09-21 5552.31
09-22 5243.57
09-23 5411.5
09-24 5457.14
09-25 5848.57
09-26 5587.14
09-27 5150.71
09-28 6040.71
09-29 5263.57
09-30 4490.85
10-01 5127.92
10-02 5166.15
10-03 5646.92
10-04 5930.0
10-05 5648.57
10-06 5503.57
10-07 5236.71
10-08 5948.57
10-09 5352.14
10-10 5683.57
10-11 5908.57
10-12 5601.43
10-13 5065.0
10-14 5310.79
10-15 4928.08
10-16 5673.85
10-17 5437.14
10-18 5185.0
10-19 5281.5
10-20 4914.62
10-21 5305.38
10-22 5699.29
10-23 5081.43
10-24 4957.14
10-25 4867.86
10-26 4847.69
10-27 4327.86
10-28 4716.23
10-29 5327.14
10-30 5212.86
10-31 4857.14
11-01 4711.67
11-02 4797.69
11-03 4323.85
11-04 4587.14
11-05 4670.71
11-06 4454.62
11-07 5042.31
11-08 4945.38
11-09 4765.38
11-10 4619.77
11-11 4795.38
11-12 4372.31
11-13 4481.54
11-14 4000.71
11-15 4083.57
11-16 3723.57
11-17 4200.43
11-18 3809.31
11-19 4074.62
11-20 3883.85
11-21 3729.29
11-22 3453.85
11-23 3483.85
11-24 3253.62
11-25 2861.54
11-26 2927.86
11-27 2974.17
11-28 3315.38
11-29 3229.29
11-30 3212.14
12-01 3037.14
12-02 3425.0
12-03 3778.79
12-04 3345.0
12-05 3366.29
12-06 3620.77
12-07 3338.57
12-08 3405.0
12-09 2997.69
12-10 3510.0
12-11 3265.08
12-12 3720.0
12-13 3107.36
12-14 2879.23
12-15 2886.15
12-16 3246.09
12-17 3510.0
12-18 3046.08
12-19 3266.15
12-20 2737.5
12-21 2662.17
12-22 1216.92
12-23 1087.7
12-24 1678.5
12-25 2096.15
12-26 2567.55
12-27 2089.92
12-28 2260.58
12-29 2505.45
12-30 1582.82
12-31 2223.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index