Black Rvr Falls Sewage Weather Records (USC00470855)

Record envelope, standing records and threshold days for Black Rvr Falls Sewage (USC00470855), Wisconsin, United States, with 134 years of record.

Key Facts for Black Rvr Falls Sewage

Black Rvr Falls Sewage (USC00470855) is a weather station in Wisconsin, United States at 44.29 latitude and -90.85 longitude, 247 m (810 ft) above sea level.
The station reports from 1893 to 2026, 134 years of record.
1,464 records set at Black Rvr Falls Sewage still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Black Rvr Falls Sewage set a daily record precipitation of 49.5 mm (1.9 in) on 19 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Wisconsin, United States, 44.29 latitude, -90.85 longitude.
Elevation: 247 m (810 ft).
Period of record: 1893 to 2026, 134 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Black Rvr Falls Sewage. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Black Rvr Falls Sewage, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	14.4 C (57.9 F)	-38.3 C (-36.9 F)	n/a	n/a
Feb	14.4 C (57.9 F)	-38.9 C (-38.0 F)	n/a	n/a
Mar	26.1 C (79.0 F)	-33.3 C (-27.9 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-12.8 C (9.0 F)	n/a	n/a
May	35.6 C (96.1 F)	-7.8 C (18.0 F)	n/a	n/a
Jun	41.7 C (107.1 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	42.2 C (108.0 F)	-1.1 C (30.0 F)	n/a	n/a
Aug	37.8 C (100.0 F)	0.0 C (32.0 F)	n/a	n/a
Sep	36.7 C (98.1 F)	-5.6 C (21.9 F)	n/a	n/a
Oct	33.9 C (93.0 F)	-16.1 C (3.0 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-26.7 C (-16.1 F)	n/a	n/a
Dec	15.0 C (59.0 F)	-36.7 C (-34.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Black Rvr Falls Sewage still stand. 1894 holds the most, with 153.

Standing records at Black Rvr Falls Sewage by the year they were set
Year set	Standing records
1893	142
1894	153
1895	122
1896	29
1933	93
1934	117
1935	85
1936	123
1937	88
1938	89
1939	111
1940	106
1941	24
1942	20
1943	43
1944	33
1945	26
1946	29
1947	15
1948	16

All-Time Record Progression

1 new records

1 all-time records were set at Black Rvr Falls Sewage between 8 August 2009 and 8 August 2009. Each dot is a new record.

Wettest Day of Each Month

Aug: 166.4 mm (6.6 in)

The wettest day on record for each calendar month at Black Rvr Falls Sewage. The most was 166.4 mm (6.6 in) on 8 August 2009.

Record daily precipitation for each month at Black Rvr Falls Sewage
Month	Record daily precipitation (mm)	Date
Jan	39.6 mm (1.6 in)	8 January 1937
Feb	36.8 mm (1.4 in)	29 February 2012
Mar	101.6 mm (4.0 in)	8 March 1909
Apr	61.5 mm (2.4 in)	20 April 2017
May	74.4 mm (2.9 in)	28 May 2020
Jun	134.1 mm (5.3 in)	26 June 1998
Jul	103.6 mm (4.1 in)	7 July 1994
Aug	166.4 mm (6.6 in)	8 August 2009
Sep	119.9 mm (4.7 in)	23 September 2010
Oct	158.2 mm (6.2 in)	25 October 2023
Nov	57.9 mm (2.3 in)	15 November 1996
Dec	48.0 mm (1.9 in)	14 December 2015

Period of Record Coverage

1893 to 1948

20 years of record at Black Rvr Falls Sewage, 1893 to 1948. 16 years have data for under 90 percent of days and are left out of rankings: 1895, 1896, 1933, 1935, 1936, 1937, 1938, 1940 and others.

Days with data per year at Black Rvr Falls Sewage
Year	Days with data	Share of year	Complete
1893	337	92%	Yes
1894	341	93%	Yes
1895	320	88%	No
1896	91	25%	No
1933	238	65%	No
1934	332	91%	Yes
1935	264	72%	No
1936	317	87%	No
1937	275	75%	No
1938	300	82%	No
1939	359	98%	Yes
1940	319	87%	No
1941	150	41%	No
1942	90	25%	No
1943	148	41%	No
1944	119	33%	No
1945	114	31%	No
1946	150	41%	No
1947	137	38%	No
1948	86	23%	No

Latest Records

Latest records at Black Rvr Falls Sewage
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 September 2026	Black Rvr Falls Sewage, US	daily rain (Provisional)	49.5 mm (1.9 in)	12.7 mm (0.5 in)	91 years	45 of 100 (Notable)
17 September 2026	Black Rvr Falls Sewage, US	daily rain (Provisional)	19.6 mm (0.8 in)	0.8 mm (0.03 in)	120 years	20 of 100 (Routine)
30 June 2026	Black Rvr Falls Sewage, US	daily rain	29.5 mm (1.2 in)	9.2 mm (0.36 in)	88 years	41 of 100 (Notable)
14 April 2026	Black Rvr Falls Sewage, US	daily rain	43.9 mm (1.7 in)	9.1 mm (0.36 in)	8 years	20 of 100 (Routine)
4 April 2026	Black Rvr Falls Sewage, US	daily rain	33.5 mm (1.3 in)	11.1 mm (0.4 in)	8 years	22 of 100 (Routine)
17 March 2026	Black Rvr Falls Sewage, US	daily snow depth	35.6 cm (14.0 in)	2.6 cm (1.0 in)	84 years	36 of 100 (Notable)
16 March 2026	Black Rvr Falls Sewage, US	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	91 years	41 of 100 (Notable)
16 March 2026	Black Rvr Falls Sewage, US	daily snow depth (Tie)	35.6 cm (14.0 in)	tie	7 years	3 of 100 (Routine)
15 March 2026	Black Rvr Falls Sewage, US	daily snowfall	27.9 cm (11.0 in)	22.8 cm (9.0 in)	89 years	75 of 100 (Major)
15 March 2026	Black Rvr Falls Sewage, US	daily rain	41.9 mm (1.6 in)	27.7 mm (1.1 in)	80 years	65 of 100 (Major)
7 March 2026	Black Rvr Falls Sewage, US	daily rain	18.8 mm (0.7 in)	13.2 mm (0.5 in)	91 years	20 of 100 (Routine)
20 February 2026	Black Rvr Falls Sewage, US	daily snowfall	10.2 cm (4.0 in)	3.8 cm (1.5 in)	88 years	43 of 100 (Notable)
16 January 2026	Black Rvr Falls Sewage, US	daily snowfall	2.5 cm (1.0 in)	0.7 cm (0.3 in)	8 years	13 of 100 (Routine)
9 January 2026	Black Rvr Falls Sewage, US	daily rain	25.4 mm (1.0 in)	15.0 mm (0.6 in)	26 years	47 of 100 (Notable)
30 November 2025	Black Rvr Falls Sewage, US	daily snowfall (Tie)	11.4 cm (4.5 in)	tie	84 years	8 of 100 (Routine)
29 November 2025	Black Rvr Falls Sewage, US	daily snowfall (Tie)	1.3 cm (0.5 in)	tie	84 years	8 of 100 (Routine)
20 September 2025	Black Rvr Falls Sewage, US	daily rain	36.6 mm (1.4 in)	1.8 mm (0.07 in)	0 years	11 of 100 (Routine)
13 September 2025	Black Rvr Falls Sewage, US	daily rain	42.4 mm (1.7 in)	1.0 mm (0.04 in)	6 years	11 of 100 (Routine)
10 August 2025	Black Rvr Falls Sewage, US	daily rain	33.8 mm (1.3 in)	7.1 mm (0.28 in)	76 years	36 of 100 (Notable)
4 July 2025	Black Rvr Falls Sewage, US	daily rain	90.9 mm (3.6 in)	61.7 mm (2.4 in)	18 years	55 of 100 (Notable)

Extremes by Year

1893 to 2026

Yearly extremes at Black Rvr Falls Sewage: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.2 C (108.0 F)	1936	36.7 C (98.1 F)	20
Coldest night (TNn)	-38.9 C (-38.0 F)	1936	-35.6 C (-32.1 F)	19
Wettest day (Rx1day)	166.4 mm (6.6 in)	2009	57.9 mm (2.3 in)	63
Wettest five days (Rx5day)	232.7 mm (9.2 in)	2023	92.5 mm (3.6 in)	63
Longest dry spell (CDD)	47 days	1894	22 days	63

Hottest day (TXx)

The hottest day of the year at Black Rvr Falls Sewage, 1893 to 2026. The record is 42.2 C (108.0 F) in 1936, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Black Rvr Falls Sewage by year
Year	Hottest day (TXx)
1893	37.2 C (99.0 F)
1894	39.4 C (102.9 F)
1895	37.8 C (100.0 F)
1896	36.7 C (98.1 F)
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1933	37.8 C (100.0 F)
1934	41.7 C (107.1 F)
1935	37.2 C (99.0 F)
1936	42.2 C (108.0 F)
1937	36.7 C (98.1 F)
1938	33.9 C (93.0 F)
1939	37.2 C (99.0 F)
1940	37.2 C (99.0 F)
1941	21.1 C (70.0 F)
1942	16.7 C (62.1 F)
1943	23.9 C (75.0 F)
1944	14.4 C (57.9 F)
1945	24.4 C (75.9 F)
1946	26.1 C (79.0 F)
1947	21.1 C (70.0 F)
1948	22.8 C (73.0 F)
1949	n/a
1950	n/a
1951	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Black Rvr Falls Sewage, 1893 to 2026. The record is -38.9 C (-38.0 F) in 1936, marked on the chart; the median year is -35.6 C (-32.1 F).

Coldest night (TNn) at Black Rvr Falls Sewage by year
Year	Coldest night (TNn)
1893	-37.8 C (-36.0 F)
1894	-33.9 C (-29.0 F)
1895	-35.6 C (-32.1 F)
1896	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1933	-35.0 C (-31.0 F)
1934	-28.3 C (-18.9 F)
1935	-38.3 C (-36.9 F)
1936	-38.9 C (-38.0 F)
1937	-38.3 C (-36.9 F)
1938	-29.4 C (-20.9 F)
1939	-26.7 C (-16.1 F)
1940	-36.7 C (-34.1 F)
1941	-27.8 C (-18.0 F)
1942	-35.6 C (-32.1 F)
1943	-35.0 C (-31.0 F)
1944	-27.8 C (-18.0 F)
1945	-32.8 C (-27.0 F)
1946	-35.6 C (-32.1 F)
1947	-37.8 C (-36.0 F)
1948	-38.3 C (-36.9 F)
1949	n/a
1950	n/a
1951	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Black Rvr Falls Sewage, 1893 to 2026. The record is 166.4 mm (6.6 in) in 2009, marked on the chart; the median year is 57.9 mm (2.3 in).

Wettest day (Rx1day) at Black Rvr Falls Sewage by year
Year	Wettest day (Rx1day)
1893	55.6 mm (2.2 in)
1894	50.8 mm (2.0 in)
1895	47.5 mm (1.9 in)
1896	43.2 mm (1.7 in)
1905	38.1 mm (1.5 in)
1906	32.5 mm (1.3 in)
1907	39.6 mm (1.6 in)
1908	52.8 mm (2.1 in)
1909	101.6 mm (4.0 in)
1933	31.0 mm (1.2 in)
1934	66.8 mm (2.6 in)
1935	47.8 mm (1.9 in)
1936	51.6 mm (2.0 in)
1937	39.6 mm (1.6 in)
1938	59.4 mm (2.3 in)
1939	96.5 mm (3.8 in)
1940	38.6 mm (1.5 in)
1941	32.8 mm (1.3 in)
1942	27.4 mm (1.1 in)
1943	34.3 mm (1.4 in)
1944	21.8 mm (0.9 in)
1945	23.6 mm (0.9 in)
1946	25.9 mm (1.0 in)
1947	22.1 mm (0.9 in)
1948	26.7 mm (1.1 in)
1949	69.6 mm (2.7 in)
1950	55.4 mm (2.2 in)
1951	55.4 mm (2.2 in)
1992	30.2 mm (1.2 in)
1993	67.3 mm (2.6 in)
1994	103.6 mm (4.1 in)
1995	145.3 mm (5.7 in)
1996	57.9 mm (2.3 in)
1997	52.6 mm (2.1 in)
1998	134.1 mm (5.3 in)
1999	55.9 mm (2.2 in)
2000	52.6 mm (2.1 in)
2001	62.2 mm (2.4 in)
2002	73.9 mm (2.9 in)
2003	39.4 mm (1.6 in)
2004	89.9 mm (3.5 in)
2005	85.9 mm (3.4 in)
2006	55.1 mm (2.2 in)
2007	62.2 mm (2.4 in)
2008	88.1 mm (3.5 in)
2009	166.4 mm (6.6 in)
2010	119.9 mm (4.7 in)
2011	59.2 mm (2.3 in)
2012	42.7 mm (1.7 in)
2013	72.9 mm (2.9 in)
2014	91.7 mm (3.6 in)
2015	71.9 mm (2.8 in)
2016	101.9 mm (4.0 in)
2017	61.5 mm (2.4 in)
2018	58.4 mm (2.3 in)
2019	85.6 mm (3.4 in)
2020	82.6 mm (3.3 in)
2021	96.0 mm (3.8 in)
2022	89.9 mm (3.5 in)
2023	158.2 mm (6.2 in)
2024	71.1 mm (2.8 in)
2025	90.9 mm (3.6 in)
2026	49.5 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Black Rvr Falls Sewage, 1893 to 2026. The record is 232.7 mm (9.2 in) in 2023, marked on the chart; the median year is 92.5 mm (3.6 in).

Wettest five days (Rx5day) at Black Rvr Falls Sewage by year
Year	Wettest five days (Rx5day)
1893	52.3 mm (2.1 in)
1894	50.8 mm (2.0 in)
1895	87.9 mm (3.5 in)
1896	38.1 mm (1.5 in)
1905	83.9 mm (3.3 in)
1906	56.1 mm (2.2 in)
1907	62.0 mm (2.4 in)
1908	108.7 mm (4.3 in)
1909	50.2 mm (2.0 in)
1933	53.1 mm (2.1 in)
1934	93.8 mm (3.7 in)
1935	74.7 mm (2.9 in)
1936	32.5 mm (1.3 in)
1937	70.9 mm (2.8 in)
1938	90.1 mm (3.5 in)
1939	98.0 mm (3.9 in)
1940	70.4 mm (2.8 in)
1941	32.8 mm (1.3 in)
1942	58.7 mm (2.3 in)
1943	24.2 mm (1.0 in)
1944	23.1 mm (0.9 in)
1945	37.3 mm (1.5 in)
1946	35.0 mm (1.4 in)
1947	38.1 mm (1.5 in)
1948	26.9 mm (1.1 in)
1949	101.2 mm (4.0 in)
1950	78.8 mm (3.1 in)
1951	59.9 mm (2.4 in)
1992	58.6 mm (2.3 in)
1993	110.9 mm (4.4 in)
1994	143.2 mm (5.6 in)
1995	208.9 mm (8.2 in)
1996	66.0 mm (2.6 in)
1997	71.1 mm (2.8 in)
1998	212.9 mm (8.4 in)
1999	112.1 mm (4.4 in)
2000	120.0 mm (4.7 in)
2001	94.7 mm (3.7 in)
2002	105.4 mm (4.1 in)
2003	79.1 mm (3.1 in)
2004	95.1 mm (3.7 in)
2005	115.1 mm (4.5 in)
2006	65.0 mm (2.6 in)
2007	91.4 mm (3.6 in)
2008	112.3 mm (4.4 in)
2009	166.9 mm (6.6 in)
2010	181.1 mm (7.1 in)
2011	114.6 mm (4.5 in)
2012	132.1 mm (5.2 in)
2013	102.6 mm (4.0 in)
2014	132.3 mm (5.2 in)
2015	92.5 mm (3.6 in)
2016	137.9 mm (5.4 in)
2017	103.0 mm (4.1 in)
2018	91.0 mm (3.6 in)
2019	133.3 mm (5.2 in)
2020	117.9 mm (4.6 in)
2021	98.5 mm (3.9 in)
2022	95.8 mm (3.8 in)
2023	232.7 mm (9.2 in)
2024	93.2 mm (3.7 in)
2025	111.5 mm (4.4 in)
2026	116.1 mm (4.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Black Rvr Falls Sewage, 1893 to 2026. The record is 47 days in 1894, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Black Rvr Falls Sewage by year
Year	Longest dry spell (CDD)
1893	24 days
1894	47 days
1895	32 days
1896	11 days
1905	31 days
1906	20 days
1907	26 days
1908	27 days
1909	23 days
1933	16 days
1934	27 days
1935	13 days
1936	24 days
1937	15 days
1938	21 days
1939	35 days
1940	20 days
1941	17 days
1942	22 days
1943	23 days
1944	21 days
1945	16 days
1946	26 days
1947	25 days
1948	15 days
1949	22 days
1950	23 days
1951	11 days
1992	17 days
1993	15 days
1994	20 days
1995	19 days
1996	18 days
1997	22 days
1998	22 days
1999	38 days
2000	21 days
2001	25 days
2002	29 days
2003	23 days
2004	18 days
2005	17 days
2006	26 days
2007	33 days
2008	16 days
2009	35 days
2010	29 days
2011	14 days
2012	27 days
2013	19 days
2014	15 days
2015	33 days
2016	23 days
2017	31 days
2018	20 days
2019	21 days
2020	28 days
2021	20 days
2022	20 days
2023	29 days
2024	32 days
2025	26 days
2026	27 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

41 years, 1894 to 2025

A day with at least 69.8 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 197.4 mm (7.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Black Rvr Falls Sewage: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	69.8 mm (2.7 in)
5 years	96.8 mm (3.8 in)
10 years	117.2 mm (4.6 in)
25 years	146.3 mm (5.8 in)
50 years	170.7 mm (6.7 in)	Longer than the 41 years of record
100 years	197.4 mm (7.8 in)	Longer than the 41 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 41 years of values from 1894 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 166.4 mm (6.6 in) in 2009; 158.2 mm (6.2 in) in 2023; 145.3 mm (5.7 in) in 1995.

Download the Data

Data for Black Rvr Falls Sewage standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Black Rvr Falls Sewage threshold days by year: CSV or JSON. Field meanings are on the data page.

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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).