Overview Realtime Historical Map View
Heat Advisory
2026-07-20T21:00:00-05:00

* WHAT...Heat index values up to 104 expected. * WHERE...A portion of north central Nebraska. * WHEN...From 11 AM CDT /10 AM MDT/ Sunday to 9 PM CDT /8 PM MDT/ Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Niobrara River At Mariaville, Ne Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
01-01 1576.2
01-02 2910.0
01-03 1786.67
01-04 1836.67
01-05 1983.33
01-06 2030.0
01-07 1600.0
01-08 1620.0
01-09 1655.0
01-10 1675.0
01-11 1650.0
01-12 1865.0
01-13 1663.33
01-14 1613.33
01-15 2366.67
01-16 1550.0
01-17 1885.0
01-18 2010.0
01-19 2200.0
01-20 2600.0
01-21 2230.0
01-22 1610.0
01-23 2480.0
01-24 2560.0
01-25 2300.0
02-08 1640.0
02-09 1520.0
02-10 1530.0
02-11 2143.33
02-12 2320.0
02-13 2340.0
02-14 2164.67
02-15 2813.33
02-16 2556.67
02-17 1803.33
02-18 1833.33
02-19 2296.67
02-20 2122.5
02-21 2215.0
02-22 1907.5
02-23 2337.5
02-24 2157.5
02-25 2265.0
02-26 2212.5
02-27 2000.0
02-28 2235.0
02-29 2383.33
03-01 2227.5
03-02 2057.5
03-03 2247.5
03-04 2103.33
03-05 2070.0
03-06 2214.29
03-07 1831.43
03-08 1812.86
03-09 1635.0
03-10 1636.0
03-11 1713.75
03-12 1645.0
03-13 1570.0
03-14 1728.89
03-15 1856.36
03-16 1821.0
03-17 1935.0
03-18 1826.67
03-19 1872.31
03-20 1903.33
03-21 1879.23
03-22 1893.33
03-23 2023.85
03-24 2068.46
03-25 2110.77
03-26 2010.0
03-27 2013.85
03-28 1796.0
03-29 1787.0
03-30 1818.54
03-31 1727.83
04-01 1878.57
04-02 1778.57
04-03 1755.71
04-04 1778.57
04-05 1877.86
04-06 1820.43
04-07 1735.86
04-08 1862.14
04-09 1491.54
04-10 1701.0
04-11 1669.64
04-12 1588.08
04-13 1619.23
04-14 1741.77
04-15 1719.42
04-16 1842.73
04-17 1807.27
04-18 1822.73
04-19 1770.91
04-20 1917.0
04-21 1790.0
04-22 1726.67
04-23 1776.15
04-24 1659.23
04-25 1704.17
04-26 1623.08
04-27 1705.38
04-28 1769.23
04-29 1796.15
04-30 1870.0
05-01 1803.85
05-02 1909.17
05-03 1808.83
05-04 1877.69
05-05 1790.0
05-06 1721.54
05-07 1873.08
05-08 1892.82
05-09 1958.33
05-10 1832.08
05-11 1842.92
05-12 1855.83
05-13 1851.54
05-14 1780.83
05-15 1862.5
05-16 1882.5
05-17 1985.83
05-18 1978.31
05-19 1919.25
05-20 2006.36
05-21 1910.83
05-22 1953.85
05-23 2046.15
05-24 2044.92
05-25 1942.43
05-26 1926.5
05-27 1980.71
05-28 1850.93
05-29 1916.07
05-30 1963.46
05-31 1932.31
06-01 1936.67
06-02 1910.83
06-03 1880.08
06-04 1824.29
06-05 1798.46
06-06 1893.33
06-07 1870.0
06-08 1875.21
06-09 1835.29
06-10 1939.29
06-11 1867.86
06-12 1786.92
06-13 1596.62
06-14 1487.69
06-15 1480.57
06-16 1510.71
06-17 1542.31
06-18 1485.79
06-19 1510.85
06-20 1431.15
06-21 1414.62
06-22 1461.92
06-23 1535.46
06-24 1807.46
06-25 1537.15
06-26 1604.08
06-27 1511.5
06-28 1522.58
06-29 1544.58
06-30 1533.08
07-01 1568.08
07-02 1521.67
07-03 1483.08
07-04 1462.0
07-05 1436.69
07-06 1617.69
07-07 1651.67
07-08 1623.75
07-09 1585.75
07-10 1603.92
07-11 1543.69
07-12 1405.75
07-13 1321.25
07-14 1372.79
07-15 1250.36
07-16 1450.14
07-17 1341.71
07-18 1284.0
07-19 1263.31
07-20 1340.0
07-21 1325.77
07-22 1254.17
07-23 1205.17
07-24 1150.46
07-25 1131.85
07-26 1196.92
07-27 1134.38
07-28 1127.54
07-29 1111.92
07-30 1111.0
07-31 1140.77
08-01 1183.0
08-02 1164.58
08-03 1128.75
08-04 1117.23
08-05 1157.0
08-06 1230.08
08-07 1186.54
08-08 1181.08
08-09 1205.83
08-10 1306.42
08-11 1224.0
08-12 1220.46
08-13 1245.69
08-14 1320.08
08-15 1276.15
08-16 1216.0
08-17 1183.67
08-18 1236.45
08-19 1263.42
08-20 1247.92
08-21 1302.08
08-22 1313.27
08-23 1260.0
08-24 1278.33
08-25 1199.67
08-26 1226.23
08-27 1293.77
08-28 1236.54
08-29 1251.31
08-30 1234.46
08-31 1166.67
09-01 1149.62
09-02 1156.46
09-03 1251.85
09-04 1316.92
09-05 1230.85
09-06 1248.23
09-07 1235.54
09-08 1232.92
09-09 1144.31
09-10 1134.31
09-11 1297.69
09-12 1417.85
09-13 1348.54
09-14 1172.38
09-15 1186.54
09-16 1151.38
09-17 1304.62
09-18 1191.31
09-19 1193.62
09-20 1156.23
09-21 1218.69
09-22 1261.25
09-23 1220.15
09-24 1209.92
09-25 1184.62
09-26 1170.31
09-27 1192.54
09-28 1196.15
09-29 1115.38
09-30 1194.58
10-01 1216.73
10-02 1203.17
10-03 1251.5
10-04 1345.67
10-05 1347.31
10-06 1311.77
10-07 1282.38
10-08 1339.31
10-09 1345.31
10-10 1295.31
10-11 1276.0
10-12 1237.38
10-13 1125.62
10-14 1080.0
10-15 1174.25
10-16 977.67
10-17 1130.38
10-18 1181.18
10-19 1115.92
10-20 1176.2
10-21 1283.7
10-22 1331.75
10-23 1395.36
10-24 1362.0
10-25 1378.33
10-26 1396.58
10-27 1341.92
10-28 1341.31
10-29 1454.8
10-30 1368.6
10-31 1393.0
11-01 1452.82
11-02 1554.4
11-03 1349.0
11-04 1308.08
11-05 1329.62
11-06 1301.0
11-07 1336.42
11-08 1299.17
11-09 1303.83
11-10 1344.27
11-11 1433.6
11-12 1470.27
11-13 1399.5
11-14 1444.27
11-15 1513.0
11-16 1370.5
11-17 1427.89
11-18 1324.25
11-19 1214.89
11-20 1246.89
11-21 1359.22
11-22 1498.89
11-23 1534.44
11-24 1503.88
11-25 1461.75
11-26 1523.78
11-27 1603.33
11-28 1725.56
11-29 1690.0
11-30 1763.0
12-01 1770.0
12-02 1721.0
12-03 1618.0
12-04 1721.11
12-05 1630.78
12-06 1755.0
12-07 1700.0
12-08 1856.25
12-09 1775.71
12-10 1792.86
12-11 1945.0
12-12 1795.56
12-13 1864.44
12-14 1922.5
12-15 1807.29
12-16 1823.0
12-17 1814.29
12-18 1828.5
12-19 1744.29
12-20 1903.75
12-21 1445.71
12-22 1641.25
12-23 1708.33
12-24 1980.0
12-25 1960.0
12-26 1905.0
12-27 2068.33
12-28 1916.67
12-29 2067.6
12-30 2301.67
12-31 1943.33

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index