Overview Realtime Historical Map View
Extreme Heat Warning
2026-08-25T17:00:00-04:00

* WHAT...Dangerously hot conditions with This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. expected. * WHERE...Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest. * WHEN...Until 5 PM AST this afternoon. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Rio Piedras At Hato Rey, Pr 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 34.81
01-02 26.3
01-03 29.06
01-04 32.56
01-05 22.7
01-06 26.7
01-07 28.66
01-08 30.71
01-09 28.1
01-10 25.29
01-11 28.06
01-12 36.05
01-13 35.15
01-14 44.36
01-15 23.19
01-16 32.74
01-17 22.63
01-18 25.97
01-19 22.77
01-20 39.97
01-21 23.31
01-22 21.71
01-23 50.23
01-24 28.59
01-25 41.06
01-26 22.17
01-27 32.47
01-28 23.44
01-29 22.9
01-30 18.55
01-31 43.14
02-01 21.84
02-02 27.22
02-03 29.71
02-04 49.63
02-05 36.99
02-06 25.65
02-07 27.86
02-08 44.39
02-09 45.92
02-10 25.93
02-11 20.56
02-12 24.46
02-13 19.91
02-14 25.34
02-15 183.88
02-16 45.79
02-17 48.78
02-18 19.9
02-19 21.9
02-20 25.63
02-21 18.49
02-22 26.06
02-23 20.71
02-24 18.26
02-25 24.91
02-26 27.54
02-27 27.97
02-28 23.86
02-29 23.52
03-01 19.69
03-02 20.21
03-03 24.56
03-04 27.87
03-05 21.91
03-06 17.87
03-07 18.56
03-08 22.22
03-09 20.02
03-10 25.36
03-11 28.56
03-12 26.34
03-13 19.27
03-14 32.57
03-15 26.95
03-16 20.05
03-17 23.56
03-18 66.45
03-19 29.1
03-20 60.48
03-21 36.12
03-22 37.55
03-23 42.43
03-24 33.59
03-25 76.93
03-26 23.66
03-27 27.18
03-28 20.15
03-29 32.09
03-30 34.06
03-31 30.31
04-01 27.16
04-02 32.97
04-03 27.24
04-04 20.87
04-05 27.83
04-06 48.34
04-07 28.4
04-08 74.57
04-09 26.41
04-10 20.87
04-11 19.69
04-12 23.53
04-13 19.95
04-14 20.9
04-15 26.63
04-16 22.25
04-17 32.08
04-18 29.05
04-19 20.79
04-20 22.58
04-21 18.89
04-22 27.18
04-23 41.36
04-24 19.02
04-25 18.86
04-26 19.52
04-27 20.22
04-28 22.57
04-29 33.84
04-30 39.1
05-01 29.38
05-02 33.84
05-03 190.47
05-04 26.18
05-05 24.87
05-06 30.29
05-07 27.54
05-08 31.36
05-09 46.95
05-10 47.74
05-11 73.63
05-12 28.13
05-13 27.09
05-14 29.9
05-15 28.55
05-16 29.85
05-17 36.19
05-18 57.46
05-19 31.05
05-20 27.34
05-21 72.6
05-22 42.38
05-23 41.1
05-24 31.04
05-25 24.25
05-26 42.28
05-27 45.88
05-28 35.6
05-29 31.34
05-30 34.27
05-31 38.08
06-01 25.51
06-02 24.69
06-03 25.78
06-04 25.8
06-05 40.0
06-06 27.55
06-07 23.71
06-08 26.46
06-09 24.49
06-10 28.92
06-11 30.0
06-12 23.6
06-13 27.22
06-14 20.87
06-15 64.85
06-16 19.95
06-17 69.92
06-18 80.18
06-19 19.85
06-20 117.13
06-21 28.84
06-22 91.92
06-23 23.62
06-24 28.57
06-25 23.22
06-26 38.56
06-27 38.61
06-28 20.86
06-29 17.34
06-30 19.8
07-01 18.39
07-02 18.21
07-03 24.26
07-04 23.78
07-05 23.35
07-06 19.18
07-07 18.69
07-08 35.77
07-09 109.48
07-10 45.03
07-11 22.91
07-12 36.66
07-13 21.56
07-14 29.01
07-15 35.54
07-16 29.6
07-17 46.76
07-18 30.58
07-19 40.56
07-20 34.31
07-21 37.74
07-22 38.54
07-23 33.68
07-24 28.4
07-25 27.17
07-26 24.3
07-27 24.09
07-28 23.03
07-29 33.84
07-30 46.42
07-31 27.55
08-01 28.92
08-02 21.36
08-03 36.58
08-04 30.7
08-05 32.69
08-06 81.11
08-07 26.75
08-08 23.09
08-09 25.08
08-10 26.13
08-11 35.8
08-12 24.43
08-13 31.21
08-14 106.24
08-15 40.45
08-16 31.18
08-17 52.04
08-18 40.63
08-19 48.1
08-20 44.22
08-21 32.73
08-22 85.67
08-23 182.28
08-24 95.1
08-25 26.85
08-26 27.31
08-27 23.88
08-28 33.59
08-29 28.64
08-30 38.9
08-31 34.13
09-01 36.28
09-02 31.55
09-03 52.61
09-04 45.46
09-05 54.97
09-06 34.41
09-07 38.27
09-08 38.55
09-09 37.05
09-10 28.69
09-11 27.9
09-12 34.58
09-13 28.44
09-14 27.97
09-15 30.39
09-16 31.89
09-17 68.53
09-18 38.86
09-19 83.25
09-20 272.01
09-21 69.25
09-22 71.19
09-23 70.61
09-24 63.33
09-25 79.93
09-26 70.87
09-27 63.85
09-28 65.02
09-29 74.67
09-30 69.97
10-01 80.36
10-02 42.38
10-03 42.15
10-04 45.32
10-05 40.03
10-06 35.52
10-07 38.29
10-08 29.52
10-09 28.11
10-10 32.3
10-11 37.74
10-12 32.5
10-13 38.39
10-14 44.33
10-15 31.16
10-16 37.06
10-17 33.86
10-18 31.25
10-19 43.48
10-20 27.06
10-21 32.5
10-22 33.05
10-23 43.22
10-24 27.25
10-25 28.03
10-26 51.33
10-27 33.56
10-28 31.06
10-29 48.82
10-30 29.94
10-31 44.86
11-01 145.58
11-02 50.07
11-03 39.22
11-04 37.9
11-05 33.39
11-06 42.67
11-07 34.9
11-08 54.8
11-09 35.1
11-10 35.86
11-11 28.56
11-12 29.04
11-13 25.91
11-14 27.68
11-15 29.32
11-16 89.05
11-17 32.04
11-18 29.79
11-19 23.86
11-20 25.8
11-21 37.32
11-22 111.28
11-23 41.51
11-24 57.53
11-25 26.46
11-26 29.24
11-27 41.89
11-28 33.99
11-29 29.91
11-30 34.84
12-01 61.0
12-02 35.72
12-03 28.48
12-04 101.84
12-05 31.8
12-06 59.42
12-07 44.68
12-08 33.75
12-09 48.98
12-10 26.8
12-11 36.07
12-12 60.68
12-13 36.53
12-14 27.01
12-15 25.66
12-16 51.74
12-17 53.27
12-18 28.77
12-19 30.1
12-20 25.8
12-21 29.66
12-22 58.72
12-23 40.41
12-24 34.19
12-25 51.78
12-26 28.46
12-27 31.67
12-28 25.76
12-29 33.99
12-30 37.02
12-31 27.61

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index