Last Updated: December 27, 2025
New Jersey's river systems are currently experiencing notably reduced streamflows, with the majority of rivers reporting flows well below normal levels, which could be indicative of low water conditions affecting recreational activities and aquatic ecosystems. For water enthusiasts, this trend suggests caution in planning activities that depend on higher water levels, such as boating or fishing. The current streamflow in the Delaware River at Montague indicates a flow of 3,840 cubic feet per second (cfs), which is 66.79% below normal, and a slight increase of 8.47 cfs in the last 24 hours. Similar conditions are observed in the Delaware River at Trenton, with a flow of 6,880 cfs, down 7.03 cfs from the previous day, and 69.17% below normal. The river at Belvidere also mirrors this trend with a flow of 4,390 cfs, a decrease of 12.72 cfs, and 70.44% below normal levels.
Areas such as Trenton, Montague, and Belvidere along the Delaware River, as well as other regions by the Passaic and Raritan rivers, may see impacts due to these low flow conditions. For instance, the Passaic River near Chatham has a flow of 129 cfs, a significant decline of 18.35 cfs in the last day, and is 64.41% below normal. The Passaic River at Little Falls is displaying a severely reduced flow at 81.85% below normal, currently at 420 cfs with a decrease of 14.29 cfs. Whitewater trails and recreational spots along these rivers may not be viable until streamflows return to higher levels. With the current gage height of 1.34 feet at Little Falls, enthusiasts should remain aware of the potential for flow-related safety and accessibility concerns. Overall, the state is experiencing a widespread pattern of reduced water levels across its rivers, which merits close monitoring for any changes that could affect both the environment and river-based recreational activities.
New Jersey's hydrology is characterized by a humid climate, with frequent precipitation and abundant water resources. Two major surface flows, the Delaware River and the Hudson River, comprise New Jersey's eastern and western borders respectively. The state has numerous reservoirs and dams that are used for water supply, flood control, and recreation. The largest reservoirs include Round Valley Reservoir and Wanaque Reservoir. The state's major rivers and tributaries include the Passaic River, Raritan River, and Hackensack River, which all flow into the Atlantic Ocean. The state's watershed data indicates that the state experiences variable rainfall and snowpack, with some areas experiencing drought conditions while others are prone to flooding. Overall, New Jersey's hydrology is complex and influenced by a range of factors, including climate variability and anthropogenic activities.
New Jersey residents are urged to exercise caution this morning as the National Weather Service has issued multiple Special Weather Statements and Winter Weather Advisories for various regions of the state, including central and northern parts. Snowfall is gradually diminishing but can still contribute an additional inch in certain areas, while mixed precipitation may lead to light ice glazing. Road conditions are expected to be hazardous, particularly secondary roads that remain snow-covered. Travelers are advised to be particularly careful and plan for slippery roads, especially in areas like Mount Holly. The advisories are in effect until 10 AM EST today.