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

* WHAT...Heat index values up to 105 expected. * WHERE...Berks, Lehigh, Northampton, Eastern Chester, Upper Bucks, Western Chester, and Western Montgomery Counties. * WHEN...From 10 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Schuylkill River At Pottstown, Pa 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 2962.42
01-02 3160.91
01-03 2817.0
01-04 2754.0
01-05 2691.0
01-06 2471.82
01-07 2534.55
01-08 2084.8
01-09 2015.7
01-10 3333.73
01-11 3878.18
01-12 3606.82
01-13 3454.27
01-14 3388.08
01-15 2835.17
01-16 2408.42
01-17 2644.36
01-18 2156.64
01-19 2059.15
01-20 2047.08
01-21 2514.55
01-22 2036.36
01-23 2004.44
01-24 3024.0
01-25 3757.0
01-26 4858.75
01-27 3981.25
01-28 3425.56
01-29 3242.9
01-30 2898.7
01-31 2955.56
02-01 3245.0
02-02 2673.5
02-03 2363.82
02-04 3222.73
02-05 4133.64
02-06 2722.0
02-07 2497.85
02-08 2599.5
02-09 2315.31
02-10 2138.83
02-11 2100.08
02-12 2343.92
02-13 2385.75
02-14 2274.15
02-15 2154.17
02-16 2089.09
02-17 2753.0
02-18 2764.55
02-19 2475.45
02-20 2397.5
02-21 2284.17
02-22 2330.0
02-23 2425.38
02-24 2525.38
02-25 3400.83
02-26 3308.33
02-27 3201.54
02-28 2932.31
02-29 3420.0
03-01 3168.46
03-02 3246.92
03-03 3297.69
03-04 2825.57
03-05 2949.29
03-06 2951.43
03-07 3015.71
03-08 2700.0
03-09 2487.14
03-10 2889.29
03-11 3086.43
03-12 3219.29
03-13 3930.0
03-14 3440.0
03-15 3346.43
03-16 3146.43
03-17 2860.0
03-18 2892.14
03-19 2604.0
03-20 2670.71
03-21 2456.67
03-22 2790.71
03-23 2900.0
03-24 2963.33
03-25 2890.0
03-26 2598.0
03-27 2444.33
03-28 2390.33
03-29 2637.87
03-30 2467.87
03-31 2676.86
04-01 3073.33
04-02 2893.33
04-03 2744.0
04-04 3458.53
04-05 3128.33
04-06 2682.2
04-07 2747.6
04-08 3359.8
04-09 3073.6
04-10 2621.73
04-11 2277.4
04-12 2104.86
04-13 2340.71
04-14 2998.93
04-15 2611.46
04-16 3028.0
04-17 2885.31
04-18 2500.38
04-19 2511.69
04-20 2398.31
04-21 2320.79
04-22 2315.86
04-23 2192.86
04-24 2112.71
04-25 1896.07
04-26 2016.93
04-27 2137.0
04-28 1921.29
04-29 1823.5
04-30 1866.5
05-01 4146.73
05-02 3915.36
05-03 2985.57
05-04 2512.0
05-05 2434.67
05-06 2486.0
05-07 2634.0
05-08 2994.67
05-09 2856.67
05-10 3094.0
05-11 2752.0
05-12 2470.2
05-13 2522.64
05-14 2738.4
05-15 2491.29
05-16 2424.14
05-17 2908.14
05-18 3049.6
05-19 2593.8
05-20 2949.79
05-21 3118.0
05-22 2532.27
05-23 2653.2
05-24 2380.27
05-25 2295.13
05-26 2032.07
05-27 1888.87
05-28 1982.67
05-29 2071.47
05-30 2512.29
05-31 2445.36
06-01 2475.8
06-02 2262.07
06-03 2433.33
06-04 2175.13
06-05 1877.67
06-06 1872.36
06-07 1716.6
06-08 1777.67
06-09 1607.6
06-10 1731.0
06-11 2426.0
06-12 2510.57
06-13 2096.36
06-14 2523.64
06-15 2016.87
06-16 1778.93
06-17 1696.53
06-18 1606.93
06-19 1632.64
06-20 1787.0
06-21 2147.86
06-22 1979.07
06-23 1623.21
06-24 1578.93
06-25 1848.29
06-26 1583.14
06-27 1631.14
06-28 1694.07
06-29 2092.86
06-30 1570.14
07-01 1669.57
07-02 3562.43
07-03 2572.5
07-04 1830.29
07-05 1635.53
07-06 1502.6
07-07 1587.86
07-08 1724.79
07-09 1910.0
07-10 2986.53
07-11 2011.47
07-12 2021.53
07-13 1547.67
07-14 1543.2
07-15 1831.64
07-16 1955.38
07-17 1535.0
07-18 1861.62
07-19 1486.15
07-20 1226.38
07-21 1225.15
07-22 1294.31
07-23 1966.43
07-24 1930.36
07-25 2414.29
07-26 2060.64
07-27 1919.79
07-28 1742.86
07-29 1644.79
07-30 1426.79
07-31 1589.57
08-01 1336.62
08-02 1741.57
08-03 1886.07
08-04 3456.86
08-05 3691.71
08-06 2519.64
08-07 1787.0
08-08 2889.23
08-09 1960.69
08-10 1635.23
08-11 1357.93
08-12 1527.07
08-13 1611.36
08-14 2921.0
08-15 2669.36
08-16 2096.62
08-17 1632.31
08-18 1549.0
08-19 1712.31
08-20 1860.54
08-21 1373.77
08-22 1735.25
08-23 1961.5
08-24 1882.46
08-25 1389.0
08-26 1193.86
08-27 1231.29
08-28 1193.71
08-29 2137.5
08-30 1497.14
08-31 1344.71
09-01 1719.29
09-02 3626.14
09-03 3037.36
09-04 1889.71
09-05 1751.64
09-06 1900.21
09-07 2709.93
09-08 3986.43
09-09 4007.0
09-10 3577.86
09-11 3142.93
09-12 2817.0
09-13 2509.43
09-14 2142.38
09-15 1822.71
09-16 1694.79
09-17 1432.86
09-18 1284.86
09-19 1506.79
09-20 1727.14
09-21 1361.21
09-22 1306.62
09-23 1254.14
09-24 2379.43
09-25 1749.57
09-26 1762.86
09-27 1572.57
09-28 1379.93
09-29 1857.71
09-30 1898.77
10-01 1546.62
10-02 1316.38
10-03 1583.08
10-04 1412.46
10-05 1529.79
10-06 1456.71
10-07 1224.5
10-08 1208.14
10-09 1275.08
10-10 1213.0
10-11 1200.36
10-12 1716.79
10-13 1533.21
10-14 1341.29
10-15 1480.77
10-16 1514.43
10-17 1985.71
10-18 1527.43
10-19 1322.07
10-20 1751.93
10-21 1640.43
10-22 1449.43
10-23 1354.14
10-24 1279.57
10-25 1195.29
10-26 1169.79
10-27 1241.21
10-28 1454.14
10-29 1387.71
10-30 2833.07
10-31 2764.93
11-01 2866.79
11-02 2638.71
11-03 2970.36
11-04 2194.71
11-05 1473.0
11-06 1682.0
11-07 1885.62
11-08 1707.62
11-09 1441.31
11-10 1558.08
11-11 1403.92
11-12 1434.31
11-13 1778.54
11-14 1773.64
11-15 1533.64
11-16 1503.71
11-17 1643.14
11-18 1605.15
11-19 1516.31
11-20 1468.38
11-21 1399.5
11-22 1368.69
11-23 1877.29
11-24 2455.31
11-25 2525.92
11-26 2117.07
11-27 2148.36
11-28 2279.86
11-29 1922.93
11-30 1960.21
12-01 2056.93
12-02 2054.93
12-03 2047.86
12-04 1930.14
12-05 1769.14
12-06 1703.08
12-07 1876.79
12-08 2400.21
12-09 2261.5
12-10 2076.43
12-11 2361.07
12-12 2180.36
12-13 1892.14
12-14 1763.0
12-15 1718.85
12-16 1916.0
12-17 2261.58
12-18 2471.08
12-19 3926.0
12-20 2522.08
12-21 2519.5
12-22 3369.46
12-23 2845.31
12-24 3422.62
12-25 3668.46
12-26 4075.69
12-27 3280.17
12-28 3737.92
12-29 3525.09
12-30 3331.67
12-31 3070.08

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index