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Built 2026-10-19 (19 October 2026)

Extreme rain in United States, 26 to 29 September 2026

Extreme rain in United States, 26 to 29 September 2026: 44 records at 36 stations, peak on 27 September 2026. Closed.

Data as of . Last revised (2026-10-17).

Key Facts

  • Extreme rain in United States, 26 to 29 September 2026 set or tied 44 station records at 36 stations.
  • It ran from 26 September 2026 to 29 September 2026 (4 days) and its peak day was 27 September 2026.
  • Status: closed.
  • Blue Hill Lcd set a daily record precipitation of 130.8 mm (5.1 in) on 27 September 2026 (provisional).
  • The busiest day was 27 September 2026 with 24 records.
  • The oldest broken record in the ranked list had stood for 68 years.

Footprint

26 to 29 September 2026
Footprint of Extreme rain in United States, 26 to 29 September 2026 The area covered by Extreme rain in United States, 26 to 29 September 2026 is outlined, with 17 of the stations that set records marked, coloured by record type.
The area covered by Extreme rain in United States, 26 to 29 September 2026 is outlined, with 17 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Extreme rain in United States, 26 to 29 September 2026: stations that set records in the event
StationTypeValueDate
Blue Hill LcdRecord daily precipitation130.8 mm (5.1 in)2026-09-27
N Foster 1 ERecord daily precipitation97.3 mm (3.8 in)2026-09-27
BrocktonRecord daily precipitation123.4 mm (4.9 in)2026-09-27
Blue Hill CoopRecord daily precipitation120.1 mm (4.7 in)2026-09-27
HinghamRecord daily precipitation69.3 mm (2.7 in)2026-09-27
RochesterRecord daily precipitation124.0 mm (4.9 in)2026-09-27
EdgartownRecord daily precipitation96.5 mm (3.8 in)2026-09-27
Walpole 2Record daily precipitation70.6 mm (2.8 in)2026-09-28
Long Branch-OakhurstRecord daily precipitation94.7 mm (3.7 in)2026-09-27
Islip-Li Macarthur APRecord daily precipitation48.8 mm (1.9 in)2026-09-27
Norwich Public Utility PltRecord daily precipitation46.7 mm (1.8 in)2026-09-27
MiddleboroRecord daily precipitation91.9 mm (3.6 in)2026-09-27
Philadelphia/Mt Holly WFORecord daily precipitation59.7 mm (2.4 in)2026-09-27
Jamaica PlainRecord daily precipitation64.8 mm (2.6 in)2026-09-28
NWS Boston/NortonRecord daily precipitation59.2 mm (2.3 in)2026-09-28
Atlantic City Intl APRecord daily precipitation64.5 mm (2.5 in)2026-09-27
Phila Franklin InstRecord daily precipitation60.5 mm (2.4 in)2026-09-29
Pennsauken 1NRecord daily precipitation64.0 mm (2.5 in)2026-09-27
Upton Coop - Nwsfo New YorkRecord daily precipitation51.6 mm (2.0 in)2026-09-28
MilfordRecord daily precipitation49.8 mm (2.0 in)2026-09-27
Estell ManorRecord daily precipitation70.4 mm (2.8 in)2026-09-27
Portland JetportRecord daily precipitation47.8 mm (1.9 in)2026-09-27
Norton WRecord daily precipitation66.5 mm (2.6 in)2026-09-28
N ConwayRecord daily precipitation23.1 mm (0.9 in)2026-09-29
Jaffrey Muni AP Silver RchRecord daily precipitation39.1 mm (1.5 in)2026-09-27
Lebanon Muni APRecord daily precipitation20.1 mm (0.8 in)2026-09-28
HollisRecord daily precipitation57.2 mm (2.3 in)2026-09-28
HyannisRecord daily precipitation54.9 mm (2.2 in)2026-09-27
WoonsocketRecord daily precipitation55.4 mm (2.2 in)2026-09-27
GreenlandRecord daily precipitation27.2 mm (1.1 in)2026-09-28
Lansing ManorRecord daily precipitation41.1 mm (1.6 in)2026-09-28
HarrisonRecord daily precipitation37.1 mm (1.5 in)2026-09-27
New SharonRecord daily precipitation26.7 mm (1.1 in)2026-09-29
GrayRecord daily precipitation26.4 mm (1.0 in)2026-09-28

Records per Day

Peak day 24
Records per day during Extreme rain in United States, 26 to 29 September 2026 Records set or tied each day from 26 September 2026 to 29 September 2026. The most in one day was 24 on 27 September 2026. 0 6 13 19 25 09-2609-2709-2809-29
Records set or tied each day from 26 September 2026 to 29 September 2026. The most in one day was 24 on 27 September 2026.
Records per day during Extreme rain in United States, 26 to 29 September 2026
DateRecords
2026-09-262
2026-09-2724
2026-09-2813
2026-09-295

Top Records by Margin

Margin over the record replaced
Top records of Extreme rain in United States, 26 to 29 September 2026 ranked by margin
Brockton, 09-2784.3 mm (3.3 in)
Blue Hill Lcd, 09-2773.4 mm (2.9 in)
N Foster 1 E, 09-2770.1 mm (2.8 in)
Blue Hill Coop, 09-2762.4 mm (2.5 in)
Rochester, 09-2749.3 mm (1.9 in)
Edgartown, 09-2743.7 mm (1.7 in)
Walpole 2, 09-2842.4 mm (1.7 in)
Phila Franklin Inst, 09-2938.7 mm (1.5 in)
NWS Boston/Norton, 09-2838.1 mm (1.5 in)
Walpole 2, 09-2734.3 mm (1.4 in)
Hingham, 09-2729.9 mm (1.2 in)
Philadelphia/Mt Holly WFO, 09-2729.0 mm (1.1 in)
Long Branch-Oakhurst, 09-2727.4 mm (1.1 in)
Blue Hill Coop, 09-2826.9 mm (1.1 in)
Middleboro, 09-2723.1 mm (0.9 in)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

Margin against age of the broken record in Extreme rain in United States, 26 to 29 September 2026 44 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right. 0 20 40 60 80 0255075100 Margin (mm) Years the old record stood
44 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.
Margin against age of the broken record in Extreme rain in United States, 26 to 29 September 2026
Margin (mm)Years the old record stood
7364
7051
8417
6217
2764
3064
4917
4417
4217
2732
3417
1751
1551
764
2317
3821
1340
2924
3927
468
2824
318
752
2517
2117
1817
940
1317
932
1717
1424
144
2117
85
723
1113
017
168
517
617
623
524
423
117

Compared With Other Events

Station records per event
Station records in Extreme rain in United States, 26 to 29 September 2026 compared with similar events
Extreme rain in United States and Mexico, 23 February to 15 March 20192,223 records
Extreme rain in United States, 3 to 19 January 20242,133 records
Extreme rain in Australia, 7 to 26 March 20212,099 records
Extreme rain in United States and Mexico, 29 September to 19 October 20181,970 records
Extreme rain in United States, 19 December 2022 to 13 January 20231,941 records
Extreme rain in United States, 26 to 29 September 2026 (this event)44 records

Every Record Set

44 of 44
Every record set or tied during Extreme rain in United States, 26 to 29 September 2026, in date order
DateStationRecordValueMarginYears stoodSignificance
2026-09-26Blue Hill LcdRecord daily precipitation (provisional)85.1 mm (3.4 in)24.9 mm (1.0 in)1725 of 100 (Routine)
2026-09-26HinghamRecord daily precipitation (provisional)60.2 mm (2.4 in)17.0 mm (0.7 in)1721 of 100 (Routine)
2026-09-27Blue Hill LcdRecord daily precipitation (provisional)130.8 mm (5.1 in)73.4 mm (2.9 in)6465 of 100 (Major)
2026-09-27N Foster 1 ERecord daily precipitation (provisional)97.3 mm (3.8 in)70.1 mm (2.8 in)5160 of 100 (Major)
2026-09-27BrocktonRecord daily precipitation (provisional)123.4 mm (4.9 in)84.3 mm (3.3 in)1755 of 100 (Notable)
2026-09-27Blue Hill CoopRecord daily precipitation (provisional)120.1 mm (4.7 in)62.4 mm (2.5 in)1752 of 100 (Notable)
2026-09-27HinghamRecord daily precipitation (provisional)69.3 mm (2.7 in)29.9 mm (1.2 in)6443 of 100 (Notable)
2026-09-27RochesterRecord daily precipitation (provisional)124.0 mm (4.9 in)49.3 mm (1.9 in)1743 of 100 (Notable)
2026-09-27EdgartownRecord daily precipitation (provisional)96.5 mm (3.8 in)43.7 mm (1.7 in)1739 of 100 (Notable)
2026-09-27Long Branch-OakhurstRecord daily precipitation (provisional)94.7 mm (3.7 in)27.4 mm (1.1 in)3234 of 100 (Routine)
2026-09-27Walpole 2Record daily precipitation (provisional)84.1 mm (3.3 in)34.3 mm (1.4 in)1733 of 100 (Routine)
2026-09-27Islip-Li Macarthur APRecord daily precipitation (provisional)48.8 mm (1.9 in)17.0 mm (0.7 in)5133 of 100 (Routine)
2026-09-27Norwich Public Utility PltRecord daily precipitation (provisional)46.7 mm (1.8 in)15.2 mm (0.6 in)5130 of 100 (Routine)
2026-09-27MiddleboroRecord daily precipitation (provisional)91.9 mm (3.6 in)23.1 mm (0.9 in)1729 of 100 (Routine)
2026-09-27Philadelphia/Mt Holly WFORecord daily precipitation (provisional)59.7 mm (2.4 in)29.0 mm (1.1 in)2429 of 100 (Routine)
2026-09-27Atlantic City Intl APRecord daily precipitation (provisional)64.5 mm (2.5 in)4.3 mm (0.17 in)6828 of 100 (Routine)
2026-09-27Pennsauken 1NRecord daily precipitation (provisional)64.0 mm (2.5 in)28.2 mm (1.1 in)2426 of 100 (Routine)
2026-09-27Jamaica PlainRecord daily precipitation (provisional)75.9 mm (3.0 in)21.0 mm (0.8 in)1724 of 100 (Routine)
2026-09-27MilfordRecord daily precipitation (provisional)49.8 mm (2.0 in)17.5 mm (0.7 in)1724 of 100 (Routine)
2026-09-27Estell ManorRecord daily precipitation (provisional)70.4 mm (2.8 in)9.4 mm (0.37 in)4023 of 100 (Routine)
2026-09-27Portland JetportRecord daily precipitation (provisional)47.8 mm (1.9 in)9.4 mm (0.37 in)3222 of 100 (Routine)
2026-09-27Jaffrey Muni AP Silver RchRecord daily precipitation (provisional)39.1 mm (1.5 in)14.2 mm (0.6 in)2419 of 100 (Routine)
2026-09-27NWS Boston/NortonRecord daily precipitation (provisional)114.3 mm (4.5 in)7.6 mm (0.30 in)518 of 100 (Routine)
2026-09-27HyannisRecord daily precipitation (provisional)54.9 mm (2.2 in)0.3 mm (0.01 in)1715 of 100 (Routine)
2026-09-27WoonsocketRecord daily precipitation (provisional)55.4 mm (2.2 in)4.6 mm (0.18 in)1715 of 100 (Routine)
2026-09-27HarrisonRecord daily precipitation (provisional)37.1 mm (1.5 in)4.8 mm (0.19 in)2412 of 100 (Routine)
2026-09-27Norton WRecord daily precipitation (tie) (provisional)99.1 mm (3.9 in)tie10810 of 100 (Routine)
2026-09-28Blue Hill CoopRecord daily precipitation (provisional)91.7 mm (3.6 in)26.9 mm (1.1 in)6444 of 100 (Notable)
2026-09-28Walpole 2Record daily precipitation (provisional)70.6 mm (2.8 in)42.4 mm (1.7 in)1739 of 100 (Notable)
2026-09-28Jamaica PlainRecord daily precipitation (provisional)64.8 mm (2.6 in)7.1 mm (0.28 in)6429 of 100 (Routine)
2026-09-28NWS Boston/NortonRecord daily precipitation (provisional)59.2 mm (2.3 in)38.1 mm (1.5 in)2129 of 100 (Routine)
2026-09-28Long Branch-OakhurstRecord daily precipitation (provisional)55.1 mm (2.2 in)12.7 mm (0.5 in)4029 of 100 (Routine)
2026-09-28Upton Coop - Nwsfo New YorkRecord daily precipitation (provisional)51.6 mm (2.0 in)30.8 mm (1.2 in)826 of 100 (Routine)
2026-09-28Norton WRecord daily precipitation (provisional)66.5 mm (2.6 in)12.7 mm (0.5 in)1722 of 100 (Routine)
2026-09-28Lebanon Muni APRecord daily precipitation (provisional)20.1 mm (0.8 in)1.0 mm (0.04 in)4419 of 100 (Routine)
2026-09-28HollisRecord daily precipitation (provisional)57.2 mm (2.3 in)21.4 mm (0.8 in)1718 of 100 (Routine)
2026-09-28Philadelphia/Mt Holly WFORecord daily precipitation (provisional)37.8 mm (1.5 in)16.2 mm (0.6 in)815 of 100 (Routine)
2026-09-28GreenlandRecord daily precipitation (provisional)27.2 mm (1.1 in)6.4 mm (0.25 in)1714 of 100 (Routine)
2026-09-28Lansing ManorRecord daily precipitation (provisional)41.1 mm (1.6 in)5.5 mm (0.22 in)2314 of 100 (Routine)
2026-09-28GrayRecord daily precipitation (provisional)26.4 mm (1.0 in)1.3 mm (0.05 in)178 of 100 (Routine)
2026-09-28HinghamRecord daily precipitation (tie) (provisional)48.3 mm (1.9 in)tie213 of 100 (Routine)
2026-09-29Phila Franklin InstRecord daily precipitation (provisional)60.5 mm (2.4 in)38.7 mm (1.5 in)2728 of 100 (Routine)
2026-09-29N ConwayRecord daily precipitation (provisional)23.1 mm (0.9 in)7.1 mm (0.28 in)5220 of 100 (Routine)
2026-09-29New SharonRecord daily precipitation (provisional)26.7 mm (1.1 in)3.8 mm (0.15 in)2311 of 100 (Routine)

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Download the Data

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.