Overview Realtime Historical Map View
Heat Advisory
2026-07-14T20:00:00-04:00

* WHAT...Heat index values 95 to 100 expected. * WHERE...Portions of south central, southwest, and western Maine and central, northern, and southern New Hampshire. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Low temperatures in the 70s south of the mountains will cause heat stress to accumulate overnight Tuesday, ahead of another hot day Wednesday.

Kennebec River At North Sidney, Maine 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 12780.0
01-02 11813.75
01-03 12246.67
01-04 12417.14
01-05 11811.25
01-06 11181.43
01-07 10613.33
01-08 10955.0
01-09 10275.0
01-10 10336.0
01-11 16734.0
01-12 17656.0
01-13 14212.0
01-14 15226.0
01-15 14410.0
01-16 12520.0
01-17 12264.0
01-18 12587.5
01-19 12428.0
01-20 11792.0
01-21 16684.0
01-22 16188.0
01-23 16947.5
01-24 15178.0
01-25 17190.0
01-26 17552.5
01-27 16705.0
01-28 14594.0
01-29 13282.0
01-30 11795.0
01-31 9228.0
02-01 9002.0
02-02 8724.0
02-03 9027.5
02-04 8127.5
02-05 8845.0
02-06 9052.5
02-07 8913.33
02-08 7713.33
02-09 8067.5
02-10 8520.0
02-11 7540.0
02-12 7552.5
02-13 7647.5
02-14 7692.5
02-15 7545.0
02-16 6597.5
02-17 8380.0
02-18 9897.5
02-19 7965.0
02-20 11695.0
02-21 11555.0
02-22 12035.0
02-23 11760.0
02-24 8996.67
02-25 9630.0
02-26 15253.33
02-27 14566.67
02-28 12516.67
02-29 15385.0
03-01 16100.0
03-02 13500.0
03-03 13195.0
03-04 15300.0
03-05 14350.0
03-06 15200.0
03-07 21100.0
03-08 35300.0
03-09 15160.0
03-10 14762.5
03-11 19527.5
03-12 14448.0
03-13 14611.67
03-14 14715.0
03-15 15758.57
03-16 12830.0
03-17 13678.0
03-18 18197.0
03-19 17045.0
03-20 17675.56
03-21 16783.0
03-22 17312.22
03-23 15459.0
03-24 13925.0
03-25 13097.0
03-26 13279.0
03-27 13904.0
03-28 13331.0
03-29 15390.0
03-30 15666.67
03-31 15786.36
04-01 16487.5
04-02 18265.83
04-03 18801.67
04-04 18107.5
04-05 17718.33
04-06 17894.17
04-07 17434.62
04-08 18273.08
04-09 18516.67
04-10 17236.15
04-11 17138.46
04-12 18576.92
04-13 20328.57
04-14 23958.57
04-15 27830.77
04-16 27060.0
04-17 29150.77
04-18 28085.38
04-19 24205.38
04-20 21522.31
04-21 22472.86
04-22 21575.71
04-23 20349.29
04-24 22022.86
04-25 20849.23
04-26 17930.71
04-27 20312.14
04-28 22194.29
04-29 19631.43
04-30 17979.29
05-01 21039.33
05-02 26487.86
05-03 20668.57
05-04 21394.67
05-05 20243.57
05-06 20654.0
05-07 18780.67
05-08 17117.86
05-09 15969.29
05-10 15816.67
05-11 16482.14
05-12 14335.71
05-13 13348.57
05-14 10645.38
05-15 11135.38
05-16 15875.38
05-17 15318.57
05-18 15255.33
05-19 13607.33
05-20 11194.29
05-21 12966.0
05-22 13866.0
05-23 12304.67
05-24 10664.67
05-25 11644.0
05-26 11504.0
05-27 12765.33
05-28 11388.0
05-29 11776.0
05-30 11100.0
05-31 10721.33
06-01 9407.33
06-02 9314.67
06-03 9476.0
06-04 11916.0
06-05 12971.43
06-06 11201.33
06-07 10155.0
06-08 8614.29
06-09 8433.33
06-10 8859.33
06-11 7704.67
06-12 6857.14
06-13 7525.71
06-14 7787.86
06-15 9082.0
06-16 8332.67
06-17 7305.33
06-18 7386.0
06-19 9951.43
06-20 9985.71
06-21 9980.0
06-22 9640.0
06-23 8324.29
06-24 8107.86
06-25 7182.86
06-26 6910.71
06-27 8529.29
06-28 10997.14
06-29 10395.71
06-30 10613.57
07-01 10625.71
07-02 10491.43
07-03 11882.14
07-04 7541.67
07-05 6634.29
07-06 8676.43
07-07 7610.0
07-08 6814.62
07-09 6875.38
07-10 5971.43
07-11 5920.77
07-12 7070.83
07-13 5759.23
07-14 4537.14
07-15 4844.62
07-16 4627.5
07-17 6044.17
07-18 5977.5
07-19 6169.23
07-20 6026.92
07-21 5832.31
07-22 4969.23
07-23 4646.92
07-24 5034.62
07-25 4560.77
07-26 4118.46
07-27 3860.83
07-28 3904.62
07-29 4147.69
07-30 5129.23
07-31 4538.46
08-01 4442.73
08-02 3886.67
08-03 3619.23
08-04 3689.23
08-05 4349.23
08-06 4009.23
08-07 3967.69
08-08 3907.27
08-09 5805.0
08-10 6386.67
08-11 5246.15
08-12 5464.62
08-13 4954.62
08-14 4674.62
08-15 7118.46
08-16 5914.55
08-17 5795.0
08-18 5384.55
08-19 4765.0
08-20 5072.5
08-21 4900.83
08-22 4870.91
08-23 4476.92
08-24 4470.83
08-25 4158.33
08-26 4031.54
08-27 4570.71
08-28 4483.57
08-29 5230.71
08-30 8068.57
08-31 4693.85
09-01 4193.57
09-02 3984.29
09-03 4893.57
09-04 4861.43
09-05 4272.86
09-06 5266.92
09-07 6822.14
09-08 6200.0
09-09 5484.29
09-10 5720.0
09-11 5130.71
09-12 4533.57
09-13 4713.08
09-14 5765.71
09-15 5842.86
09-16 4885.0
09-17 4956.43
09-18 4465.71
09-19 4295.0
09-20 7038.57
09-21 6009.29
09-22 4196.67
09-23 5058.57
09-24 4780.71
09-25 4925.0
09-26 4908.57
09-27 5187.86
09-28 5058.57
09-29 4881.43
09-30 4676.92
10-01 8141.67
10-02 7559.23
10-03 6536.15
10-04 5795.83
10-05 5906.43
10-06 5915.38
10-07 5725.0
10-08 6030.71
10-09 7380.71
10-10 6348.57
10-11 5454.29
10-12 5086.43
10-13 4926.92
10-14 4845.0
10-15 5060.77
10-16 6916.15
10-17 7110.71
10-18 8175.71
10-19 7930.0
10-20 6930.77
10-21 6953.85
10-22 7087.86
10-23 7402.14
10-24 9617.86
10-25 9278.57
10-26 8600.0
10-27 8399.29
10-28 7488.46
10-29 8656.43
10-30 9456.15
10-31 10550.0
11-01 12247.14
11-02 11524.62
11-03 10258.46
11-04 11070.0
11-05 9605.38
11-06 7821.54
11-07 7340.0
11-08 7323.08
11-09 7055.38
11-10 6885.38
11-11 6973.85
11-12 8603.08
11-13 8486.15
11-14 8313.57
11-15 7699.29
11-16 7449.29
11-17 7692.86
11-18 7567.69
11-19 7653.08
11-20 7433.08
11-21 8017.14
11-22 6933.85
11-23 6690.77
11-24 7439.23
11-25 7541.54
11-26 7632.86
11-27 7383.33
11-28 9570.0
11-29 9120.71
11-30 8050.77
12-01 10275.38
12-02 15342.5
12-03 10646.92
12-04 10208.46
12-05 9800.0
12-06 9120.83
12-07 9063.85
12-08 9395.38
12-09 9847.5
12-10 8949.17
12-11 10870.83
12-12 14025.0
12-13 12091.67
12-14 11177.0
12-15 12524.55
12-16 11445.45
12-17 10782.73
12-18 11140.0
12-19 18676.67
12-20 21830.0
12-21 16049.0
12-22 16022.73
12-23 16490.0
12-24 17607.5
12-25 16603.64
12-26 21502.0
12-27 19040.0
12-28 16150.0
12-29 15080.0
12-30 12218.89
12-31 13996.67

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index