Overview Realtime Historical Map View
Extreme Heat Watch
2026-07-27T20:00:00-07:00

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 105 to 116. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...A portion of south central Arizona. * WHEN...From Thursday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Hassayampa River Near Morristown, Az. Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-02 226.0
01-17 0.72
01-18 261.0
01-19 2.91
01-20 2.0
01-21 2.0
01-22 2.0
01-23 2.0
01-24 1.62
01-25 1.45
01-26 1.17
01-27 1.06
01-28 1.17
01-29 1.3
01-30 1.3
01-31 1.3
02-01 1.06
02-02 24.01
02-03 1.17
02-04 1.3
02-05 1.3
02-06 1.3
02-07 1.3
02-08 1.13
02-09 1.13
02-10 1.13
02-11 2.95
02-12 1.17
02-13 0.89
02-14 0.89
02-15 168.56
02-16 0.69
02-17 1.28
02-18 1.28
02-19 0.74
02-20 0.69
02-21 0.79
02-22 45.53
02-23 0.89
02-24 0.89
02-25 1.28
02-26 0.74
02-27 0.84
02-28 0.84
02-29 0.4
03-01 0.84
03-02 152.2
03-03 125.47
03-04 51.61
03-05 14.31
03-06 0.67
03-07 1.62
03-08 1.62
03-09 1.62
03-10 1.62
03-11 0.91
03-12 3.12
03-13 187.81
03-14 474.31
03-15 190.81
03-16 712.0
03-17 221.35
03-18 58.75
03-19 106.5
03-20 333.3
03-21 199.25
03-22 3970.0
03-23 1896.0
03-24 1517.0
03-25 98.1
03-26 92.0
03-27 83.4
03-28 77.8
03-29 69.9
03-30 62.4
04-01 544.0
06-25 0.72
06-30 111.0
07-01 51.0
07-18 45.0
07-19 767.5
07-20 521.46
07-21 74.7
07-22 2.9
07-23 18.0
07-24 13.2
07-25 11.1
07-26 100.95
07-27 71.03
07-28 51.47
07-29 32.87
07-30 7.55
07-31 112.45
08-01 146.0
08-02 44.4
08-03 73.9
08-04 55.3
08-05 29.15
08-06 24.75
08-07 23.7
08-08 22.7
08-09 21.45
08-10 124.2
08-11 77.7
08-12 63.2
08-13 450.0
08-14 104.0
08-15 304.0
08-16 203.0
08-17 182.0
08-18 146.55
08-19 256.0
08-20 401.0
08-21 203.0
08-22 581.5
08-23 344.37
08-24 441.25
08-25 830.0
08-26 11.1
08-27 1.71
08-28 31.4
08-29 19.3
08-30 12.2
08-31 19.0
09-01 19.0
09-02 19.0
09-03 544.0
09-04 289.0
09-05 120.0
09-06 106.5
09-07 100.0
09-08 98.0
09-09 266.5
09-10 177.5
09-11 205.0
09-12 169.0
09-13 169.0
09-14 165.0
09-15 165.0
09-16 165.0
09-17 161.0
09-18 161.0
09-19 161.0
09-20 161.0
09-21 161.0
09-22 169.0
09-23 169.0
09-24 169.0
09-25 169.0
09-26 188.5
09-27 205.5
09-28 165.0
09-29 165.0
09-30 165.0
10-01 2.6
10-02 161.0
10-03 161.0
10-04 161.0
10-05 161.0
10-06 173.0
10-07 173.0
10-08 173.0
10-09 173.0
10-10 169.0
10-11 169.0
10-12 169.0
10-13 169.0
10-14 125.15
10-15 73.5
10-16 173.0
10-17 169.0
10-18 169.0
10-19 118.0
10-20 228.0
10-21 161.0
10-22 94.0
10-23 169.0
10-24 169.0
10-25 169.0
10-26 169.0
10-27 169.0
10-28 169.0
10-29 169.0
10-30 169.0
10-31 165.0
11-01 165.0
11-19 850.0
11-20 169.0
11-21 40.5
11-22 5.27
11-23 4.0
11-24 3.44
11-25 3.44
11-26 3.44
11-27 2.91
11-28 2.91
11-29 2.91
11-30 311.45
12-01 2.91
12-02 2.91
12-03 2.91
12-04 2.91

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index