Extreme rain in United States, 14 to 15 September 2026

Name: Extreme rain in United States, 14 to 15 September 2026
Start: 2026-09-14
End: 2026-09-15
Location: United States

Extreme rain in United States, 14 to 15 September 2026: 12 records at 12 stations, peak on 15 September 2026. Closed.

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

Key Facts

Extreme rain in United States, 14 to 15 September 2026 set or tied 12 station records at 12 stations.
It ran from 14 September 2026 to 15 September 2026 (2 days) and its peak day was 15 September 2026.
Status: closed.
Britton set a daily record precipitation of 27.4 mm (1.1 in) on 15 September 2026 (provisional).
The busiest day was 15 September 2026 with 11 records.
The oldest broken record in the ranked list had stood for 104 years.

Footprint

14 to 15 September 2026

The area covered by Extreme rain in United States, 14 to 15 September 2026 is outlined, with 12 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Extreme rain in United States, 14 to 15 September 2026: stations that set records in the event
Station	Type	Value	Date
Britton	Record daily precipitation	27.4 mm (1.1 in)	2026-09-15
Mayville	Record daily precipitation	44.5 mm (1.8 in)	2026-09-15
Lisbon	Record daily precipitation	26.9 mm (1.1 in)	2026-09-15
Big Falls	Record daily precipitation	20.3 mm (0.8 in)	2026-09-15
Brimson 2S	Record daily precipitation	24.9 mm (1.0 in)	2026-09-15
Embarrass	Record daily precipitation	27.9 mm (1.1 in)	2026-09-15
Kelliher	Record daily precipitation	19.3 mm (0.8 in)	2026-09-15
Chaffee 5 NE	Record daily precipitation	36.1 mm (1.4 in)	2026-09-15
Wheaton	Record daily precipitation	25.1 mm (1.0 in)	2026-09-15
Victor 4 N	Record daily precipitation	31.2 mm (1.2 in)	2026-09-15
Forman 5 SSE	Record daily precipitation	22.1 mm (0.9 in)	2026-09-15
Georgetown 1 E	Record daily precipitation	25.4 mm (1.0 in)	2026-09-14

Records per Day

Peak day 11

Records set or tied each day from 14 September 2026 to 15 September 2026. The most in one day was 11 on 15 September 2026.

Top Records by Margin

Margin over the record replaced

Top records of Extreme rain in United States, 14 to 15 September 2026 ranked by margin
Mayville, 09-15	17.8 mm (0.7 in)
Embarrass, 09-15	11.1 mm (0.4 in)
Chaffee 5 NE, 09-15	9.4 mm (0.37 in)
Lisbon, 09-15	8.9 mm (0.35 in)
Britton, 09-15	7.6 mm (0.30 in)
Kelliher, 09-15	5.3 mm (0.21 in)
Brimson 2S, 09-15	2.0 mm (0.08 in)
Big Falls, 09-15	1.5 mm (0.06 in)
Victor 4 N, 09-15	1.5 mm (0.06 in)
Wheaton, 09-15	1.0 mm (0.04 in)
Georgetown 1 E, 09-14	1.0 mm (0.04 in)
Forman 5 SSE, 09-15	0.5 mm (0.02 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

12 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.

Compared With Other Events

Station records per event

Station records in Extreme rain in United States, 14 to 15 September 2026 compared with similar events
Extreme rain in United States and Mexico, 23 February to 15 March 2019	2,223 records
Extreme rain in United States, 3 to 19 January 2024	2,133 records
Extreme rain in Australia, 7 to 26 March 2021	2,099 records
Extreme rain in United States and Mexico, 29 September to 19 October 2018	1,970 records
Extreme rain in United States, 19 December 2022 to 13 January 2023	1,941 records
Extreme rain in United States, 14 to 15 September 2026 (this event)	12 records

Every Record Set

12 of 12

Every record set or tied during Extreme rain in United States, 14 to 15 September 2026, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2026-09-14	Georgetown 1 E	Record daily precipitation (provisional)	25.4 mm (1.0 in)	1.0 mm (0.04 in)	12	9 of 100 (Routine)
2026-09-15	Britton	Record daily precipitation (provisional)	27.4 mm (1.1 in)	7.6 mm (0.30 in)	104	47 of 100 (Notable)
2026-09-15	Mayville	Record daily precipitation (provisional)	44.5 mm (1.8 in)	17.8 mm (0.7 in)	43	36 of 100 (Notable)
2026-09-15	Lisbon	Record daily precipitation (provisional)	26.9 mm (1.1 in)	8.9 mm (0.35 in)	40	30 of 100 (Routine)
2026-09-15	Big Falls	Record daily precipitation (provisional)	20.3 mm (0.8 in)	1.5 mm (0.06 in)	43	20 of 100 (Routine)
2026-09-15	Brimson 2S	Record daily precipitation (provisional)	24.9 mm (1.0 in)	2.0 mm (0.08 in)	56	20 of 100 (Routine)
2026-09-15	Embarrass	Record daily precipitation (provisional)	27.9 mm (1.1 in)	11.1 mm (0.4 in)	31	20 of 100 (Routine)
2026-09-15	Kelliher	Record daily precipitation (provisional)	19.3 mm (0.8 in)	5.3 mm (0.21 in)	43	20 of 100 (Routine)
2026-09-15	Chaffee 5 NE	Record daily precipitation (provisional)	36.1 mm (1.4 in)	9.4 mm (0.37 in)	12	17 of 100 (Routine)
2026-09-15	Wheaton	Record daily precipitation (provisional)	25.1 mm (1.0 in)	1.0 mm (0.04 in)	21	16 of 100 (Routine)
2026-09-15	Victor 4 N	Record daily precipitation (provisional)	31.2 mm (1.2 in)	1.5 mm (0.06 in)	12	14 of 100 (Routine)
2026-09-15	Forman 5 SSE	Record daily precipitation (provisional)	22.1 mm (0.9 in)	0.5 mm (0.02 in)	12	13 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.