National Weather Service United States Department of Commerce

Dangerous Heat in the Northeast and Northwest U.S.; Areas of Excessive Rainfall In the Ohio Valley and Southwest

Dangerous heat will continue to impact portions of the Northwest and Northeast U.S. through this evening. Monsoon showers and thunderstorms may result in flash flooding and debris flows from the Four Corners region into the Great Basin this week. A slow moving cold front will bring heavy thunderstorms which may produce excessive rainfall over the Ohio Valley and Mid-Atlantic through Wednesday. Read More >

 

Monthly County Precipitation Normals (1980 - 2010) for December


... CONNECTICUT ...

                        County 
                       Averaged 
                        Normal 

FAIRFIELD                3.96 
HARTFORD                 3.77 
LITCHFIELD               3.83 
MIDDLESEX                4.18 
NEW HAVEN                3.96 
NEW LONDON               4.23 
TOLLAND                  3.92 
WINDHAM                  4.14 

... MASSACHUSETTS ...

                        County 
                       Averaged 
                        Normal 

BARNSTABLE               4.21 
BERKSHIRE                3.77 
BRISTOL                  4.42 
DUKES                    4.33 
ESSEX                    4.17 
FRANKLIN                 3.87 
HAMPDEN                  3.83 
HAMPSHIRE                3.77 
MIDDLESEX                4.14 
NANTUCKET                3.68 
NORFOLK                  4.42 
PLYMOUTH                 4.54 
SUFFOLK                  4.29 
WORCESTER                3.99 

... MAINE ...

                        County 
                       Averaged 
                        Normal 

ANDROSCOGGIN             4.10 
AROOSTOOK                3.43 
CUMBERLAND               4.10 
FRANKLIN                 3.77 
HANCOCK                  4.35 
KENNEBEC                 3.82 
KNOX                     4.10 
LINCOLN                  4.29 
OXFORD                   3.83 
PENOBSCOT                3.73 
PISCATAQUIS              3.55 
SAGADAHOC                4.19 
SOMERSET                 3.46 
WALDO                    4.01 
WASHINGTON               4.45 
YORK                     4.10 

... NEW HAMPSHIRE ...

                        County 
                       Averaged 
                        Normal 

BELKNAP                  3.58 
CARROLL                  4.17 
CHESHIRE                 3.68 
COOS                     3.58 
GRAFTON                  3.70 
HILLSBOROUGH             3.80 
MERRIMACK                3.65 
ROCKINGHAM               3.73 
STRAFFORD                3.76 
SULLIVAN                 3.49 

... NEW YORK ...

                        County 
                       Averaged 
                        Normal 

ALBANY                   2.99 
ALLEGANY                 2.81 
BROOME *                 3.00 
CATTARAUGUS              3.49 
CAYUGA                   2.96 
CHAUTAUQUA               3.85 
CHEMUNG *                2.44 
CHENANGO *               3.15 
CLINTON                  2.68 
COLUMBIA                 3.18 
CORTLAND *               3.24 
DELAWARE *               3.34 
DUTCHESS                 3.61 
ERIE                     3.61 
ESSEX                    3.36 
FRANKLIN                 3.15 
FULTON                   3.72 
GENESEE                  2.71 
GREENE                   3.64 
HAMILTON                 4.02 
HERKIMER                 3.86 
JEFFERSON                3.52 
LEWIS                    4.36 
LIVINGSTON               2.34 
MADISON                  3.30 
MONROE                   2.59 
MONTGOMERY               2.94 
NASSAU                   3.90 
NEW YORK CITY            3.86 
NIAGARA                  2.96 
ONEIDA                   3.89 
ONONDAGA                 3.27 
ONTARIO                  2.44 
ORANGE                   3.67 
ORLEANS                  2.81 
OSWEGO                   4.30 
OTSEGO *                 3.10 
PUTNAM                   3.92 
RENSSELAER               3.12 
ROCKLAND                 3.86 
SARATOGA                 3.53 
SCHENECTADY              3.03 
SCHOHARIE                2.94 
SCHUYLER                 2.28 
SENECA                   2.41 
STEUBEN *                2.31 
ST LAWRENCE              3.00 
SUFFOLK                  4.02 
SULLIVAN *               3.74 
TIOGA *                  2.78 
TOMPKINS                 2.62 
ULSTER                   4.04 
WARREN                   3.74 
WASHINGTON               3.18 
WAYNE                    2.84 
WESTCHESTER              3.86 
WYOMING                  3.09 
YATES                    2.25 

... RHODE ISLAND ...

                        County 
                       Averaged 
                        Normal 

KENT                     4.32 
NEWPT&BRISTOL            4.36 
PROVIDENCE               4.35 
WASHINGTON               4.20 

... VERMONT ...

                        County 
                       Averaged 
                        Normal 

ADDISON                  2.99 
BENNINGTON               4.45 
CALEDONIA                3.27 
CHITTENDEN               2.90 
ESSEX                    3.33 
FRANKLIN                 3.27 
GRAND ISLE               2.50 
LAMOILLE                 3.67 
ORANGE                   3.15 
ORLEANS                  3.70 
RUTLAND                  3.73 
WASHINGTON               3.40 
WINDHAM                  4.24 
WINDSOR                  3.71 


NOTE: COUNTIES MARKED WITH A * ARE SERVICED
BY THE MIDDLE ATLANTIC RIVER FORECAST CENTER.