Heat Advisory
2026-07-15T20:00:00-04:00

* WHAT...Heat index values up to 101 expected. * WHERE...Portions of northern Connecticut, central, eastern, northeastern, southeastern, and western Massachusetts, and northern and southern Rhode Island. * WHEN...From 11 AM this morning to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Indian Head River At Hanover, Ma 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 94.13
01-02 88.56
01-03 74.7
01-04 71.38
01-05 74.59
01-06 87.63
01-07 87.58
01-08 83.98
01-09 67.88
01-10 76.01
01-11 113.73
01-12 102.97
01-13 102.03
01-14 103.58
01-15 87.02
01-16 74.87
01-17 91.1
01-18 89.79
01-19 77.3
01-20 77.88
01-21 85.79
01-22 68.98
01-23 63.99
01-24 82.19
01-25 108.08
01-26 116.29
01-27 109.83
01-28 97.36
01-29 84.36
01-30 71.58
01-31 63.85
02-01 69.34
02-02 72.51
02-03 78.68
02-04 73.34
02-05 85.89
02-06 73.66
02-07 74.78
02-08 84.27
02-09 80.65
02-10 68.73
02-11 68.28
02-12 75.68
02-13 73.49
02-14 83.2
02-15 77.21
02-16 74.89
02-17 108.25
02-18 100.89
02-19 87.41
02-20 82.82
02-21 78.31
02-22 75.9
02-23 82.44
02-24 87.28
02-25 111.27
02-26 102.43
02-27 88.13
02-28 108.52
02-29 93.8
03-01 104.57
03-02 97.27
03-03 137.68
03-04 140.41
03-05 119.38
03-06 105.41
03-07 112.42
03-08 127.1
03-09 122.11
03-10 102.34
03-11 120.7
03-12 121.78
03-13 123.34
03-14 126.21
03-15 145.79
03-16 138.76
03-17 129.99
03-18 130.46
03-19 105.84
03-20 101.66
03-21 92.49
03-22 91.74
03-23 93.89
03-24 126.41
03-25 131.21
03-26 107.79
03-27 99.64
03-28 101.79
03-29 121.13
03-30 121.91
03-31 124.98
04-01 121.24
04-02 148.65
04-03 133.34
04-04 147.43
04-05 151.47
04-06 127.37
04-07 125.3
04-08 129.38
04-09 123.91
04-10 106.35
04-11 90.46
04-12 76.39
04-13 73.29
04-14 79.84
04-15 75.08
04-16 80.49
04-17 114.57
04-18 100.89
04-19 84.12
04-20 79.95
04-21 70.21
04-22 68.81
04-23 83.36
04-24 96.22
04-25 77.38
04-26 74.77
04-27 103.94
04-28 103.36
04-29 84.33
04-30 72.26
05-01 77.02
05-02 86.08
05-03 74.12
05-04 63.68
05-05 67.54
05-06 69.75
05-07 62.75
05-08 52.29
05-09 48.86
05-10 62.16
05-11 69.05
05-12 52.94
05-13 49.36
05-14 38.92
05-15 44.92
05-16 53.01
05-17 65.96
05-18 55.11
05-19 43.78
05-20 42.85
05-21 50.75
05-22 43.82
05-23 72.37
05-24 70.89
05-25 61.86
05-26 56.39
05-27 47.05
05-28 36.91
05-29 39.21
05-30 46.93
05-31 53.15
06-01 46.54
06-02 38.27
06-03 36.85
06-04 33.67
06-05 35.02
06-06 45.74
06-07 53.74
06-08 67.41
06-09 72.48
06-10 56.87
06-11 41.54
06-12 58.29
06-13 56.02
06-14 50.8
06-15 57.93
06-16 45.21
06-17 38.35
06-18 39.9
06-19 36.91
06-20 30.77
06-21 26.98
06-22 30.83
06-23 34.19
06-24 36.19
06-25 27.74
06-26 28.61
06-27 25.21
06-28 31.91
06-29 42.73
06-30 30.0
07-01 25.31
07-02 28.38
07-03 35.35
07-04 39.01
07-05 38.05
07-06 35.42
07-07 28.05
07-08 33.0
07-09 26.14
07-10 46.18
07-11 62.42
07-12 34.84
07-13 34.19
07-14 30.58
07-15 28.22
07-16 24.66
07-17 42.38
07-18 36.98
07-19 28.44
07-20 21.71
07-21 20.28
07-22 19.85
07-23 20.75
07-24 26.46
07-25 21.63
07-26 18.47
07-27 19.23
07-28 18.26
07-29 15.18
07-30 16.91
07-31 15.35
08-01 13.92
08-02 13.64
08-03 11.79
08-04 10.83
08-05 17.1
08-06 45.56
08-07 31.06
08-08 23.11
08-09 22.04
08-10 29.35
08-11 31.03
08-12 24.61
08-13 18.07
08-14 15.09
08-15 12.7
08-16 14.94
08-17 17.37
08-18 12.62
08-19 19.18
08-20 15.56
08-21 12.29
08-22 13.29
08-23 18.03
08-24 32.71
08-25 31.02
08-26 23.58
08-27 16.39
08-28 12.99
08-29 16.67
08-30 17.8
08-31 13.45
09-01 12.15
09-02 23.93
09-03 48.78
09-04 33.26
09-05 20.43
09-06 15.79
09-07 18.21
09-08 21.96
09-09 30.01
09-10 32.37
09-11 30.18
09-12 38.91
09-13 30.78
09-14 25.97
09-15 18.6
09-16 18.04
09-17 17.19
09-18 14.09
09-19 31.91
09-20 25.42
09-21 19.18
09-22 16.6
09-23 25.95
09-24 22.35
09-25 23.63
09-26 53.5
09-27 45.29
09-28 27.78
09-29 29.44
09-30 26.71
10-01 32.53
10-02 28.24
10-03 21.2
10-04 17.12
10-05 49.04
10-06 50.63
10-07 35.34
10-08 25.42
10-09 22.8
10-10 22.59
10-11 18.67
10-12 30.84
10-13 41.59
10-14 62.2
10-15 49.29
10-16 37.25
10-17 42.11
10-18 37.8
10-19 30.48
10-20 29.31
10-21 46.65
10-22 42.5
10-23 35.8
10-24 52.86
10-25 47.49
10-26 38.5
10-27 51.1
10-28 71.51
10-29 60.02
10-30 69.94
10-31 86.93
11-01 80.52
11-02 67.42
11-03 58.59
11-04 58.09
11-05 48.36
11-06 43.93
11-07 47.96
11-08 48.09
11-09 48.83
11-10 63.55
11-11 60.39
11-12 56.44
11-13 55.82
11-14 56.94
11-15 49.16
11-16 47.57
11-17 63.21
11-18 66.55
11-19 61.28
11-20 51.89
11-21 49.66
11-22 45.14
11-23 47.41
11-24 61.53
11-25 70.02
11-26 70.29
11-27 86.97
11-28 98.72
11-29 74.03
11-30 56.84
12-01 66.2
12-02 65.15
12-03 79.99
12-04 78.6
12-05 61.89
12-06 71.63
12-07 68.64
12-08 76.94
12-09 83.04
12-10 101.77
12-11 107.58
12-12 103.34
12-13 77.18
12-14 73.47
12-15 74.46
12-16 71.06
12-17 87.94
12-18 107.19
12-19 110.81
12-20 100.18
12-21 80.39
12-22 82.3
12-23 78.71
12-24 91.78
12-25 93.52
12-26 95.43
12-27 81.63
12-28 81.86
12-29 87.85
12-30 97.55
12-31 100.42

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index