CURRENT WATER RESOURCES CONDITIONS IN NEW HAMPSHIRE

U.S. Department of the Interior Seal

December 2019

USGS New England Water Science Center, New Hampshire-Vermont Office

PROVISIONAL DATA: All data presented in this report are provisional and subject to revision.
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Monthly Surface Water Conditions MapMonthly Groundwater Conditions Map

 

SURFACE WATER
Station
Number
Station
Name
Drainage
Area (mi2)
Years Of
Record
Normal
Range (cfs)
Monthly
Mean (cfs)
Monthly
Mean (in)
Percentile
Class
01052500 Diamond River near Wentworth Location, NH15278148 - 3002652.01 Normal
01073500 Lamprey River near Newmarket, NH18585192 - 4936303.93 Above normal
01076500 Pemigewasset River at Plymouth, NH622116691 - 156018503.43 Above normal
01092000 Merrimack River near Goffs Falls below Manchester, NH3092833100 - 754084303.14 Above normal
01137500 Ammonoosuc River at Bethlehem Junction, NH87.680104 - 2282633.46 Above normal

 

GROUNDWATER
Station
Number
Station
Name
Years Of
Record
Normal
Range (ft)
Monthly
Median (ft)
Departure
From Monthly
Median (ft)
Percentile
Class
431540071452801 WCW 1 (Warner, NH)511 32.70 - 31.0031.02-1.28 Normal
442450071052301 SJW 2 (Shelburne, NH)221 5.70 - 4.306.191.32 Below normal
1 Daily Value Records and Field Readings
2 Daily Value Records Only

 

Flow or Water LevelPercentile RangeExplanation
Low0thThe monthly mean streamflow or median water level during this month is the lowest ever recorded during the period of record for this site.
Much below normal0th to 10thThe monthly mean streamflow or median water level during this month is less than the 10th percentile when compared to all of the months during the period of record for this site.
Below normal10th to 25thThe monthly mean streamflow or median water level during this month is between the 10th and 25th percentiles when compared to all of the months during the period of record for this site.
Normal25th to 75thThe monthly mean streamflow or median water level during this month is between the 25th and 75th percentiles when compared to all of the months during the period of record for this site.
Above normal75th to 90thThe monthly mean streamflow or median water level during this month is between the 75th and 90th percentiles when compared to all of the months during the period of record for this site.
Much above normal90th to 100thThe monthly mean streamflow or median water level during this month is greater than the 90th percentile when compared to all of the months during the period of record for this site.
High100thThe monthly mean streamflow or median water level during this month is the highest ever recorded during the period of record for this site.
431540071452801 WCW 1 (Warner, NH), December 2019 mean water level 31.02 feet 442450071052301 SJW 2 (Shelburne, NH), December 2019 mean water level 6.19 feet 01052500 Diamond River near Wentworth Location, NH, December 2019 mean streamflow 265 cfs 01073500 Lamprey River near Newmarket, NH, December 2019 mean streamflow 630 cfs 01076500 Pemigewasset River at Plymouth, NH, December 2019 mean streamflow 1850 cfs 01092000 Merrimack River near Goffs Falls below Manchester, NH, December 2019 mean streamflow 8430 cfs 01137500 Ammonoosuc River at Bethlehem Junction, NH, December 2019 mean streamflow 263 cfs