Berlin Lock Weather Records (USC00470735)

Record envelope, standing records and threshold days for Berlin Lock (USC00470735), Wisconsin, United States, with 58 years of record.

Key Facts for Berlin Lock

Berlin Lock (USC00470735) is a weather station in Wisconsin, United States at 43.97 latitude and -88.95 longitude, 238 m (781 ft) above sea level.
The station reports from 1894 to 1951, 58 years of record.
1,460 records set at Berlin Lock still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Berlin Lock set a daily record precipitation of 14.7 mm (0.6 in) on 21 July 1951.

About the Station

Location: Wisconsin, United States, 43.97 latitude, -88.95 longitude.
Elevation: 238 m (781 ft).
Period of record: 1894 to 1951, 58 years.
Eligible elements: prcp.

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 Berlin Lock. 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 Berlin Lock, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	8.3 C (46.9 F)	-30.0 C (-22.0 F)	n/a	n/a
Feb	12.2 C (54.0 F)	-31.7 C (-25.1 F)	n/a	n/a
Mar	21.1 C (70.0 F)	-20.0 C (-4.0 F)	n/a	n/a
Apr	27.8 C (82.0 F)	-5.6 C (21.9 F)	n/a	n/a
May	34.4 C (93.9 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	33.9 C (93.0 F)	2.8 C (37.0 F)	n/a	n/a
Jul	37.2 C (99.0 F)	5.0 C (41.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	3.9 C (39.0 F)	n/a	n/a
Sep	35.0 C (95.0 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	28.3 C (82.9 F)	-11.7 C (10.9 F)	n/a	n/a
Nov	20.6 C (69.1 F)	-15.0 C (5.0 F)	n/a	n/a
Dec	13.9 C (57.0 F)	-23.9 C (-11.0 F)	n/a	n/a

Which Years Hold Standing Records

1,460 standing records

1,460 records at Berlin Lock still stand. 1905 holds the most, with 457.

Wettest Day of Each Month

Jul: 152.9 mm (6.0 in)

The wettest day on record for each calendar month at Berlin Lock. The most was 152.9 mm (6.0 in) on 1 July 1938.

Record daily precipitation for each month at Berlin Lock
Month	Record daily precipitation (mm)	Date
Jan	29.7 mm (1.2 in)	6 January 1939
Feb	37.1 mm (1.5 in)	21 February 1937
Mar	50.8 mm (2.0 in)	7 March 1906
Apr	40.9 mm (1.6 in)	25 April 1929
May	47.2 mm (1.9 in)	29 May 1947
Jun	99.1 mm (3.9 in)	6 June 1905
Jul	152.9 mm (6.0 in)	1 July 1938
Aug	111.8 mm (4.4 in)	4 August 1940
Sep	61.7 mm (2.4 in)	18 September 1938
Oct	32.8 mm (1.3 in)	20 October 1905
Nov	51.3 mm (2.0 in)	22 November 1934
Dec	30.5 mm (1.2 in)	28 December 1946

Period of Record Coverage

1894 to 1906

5 years of record at Berlin Lock, 1894 to 1906. 4 years have data for under 90 percent of days and are left out of rankings: 1894, 1895, 1904, 1906.

Latest Records

Latest records at Berlin Lock
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1951	Berlin Lock, US	daily rain	14.7 mm (0.6 in)	5.3 mm (0.21 in)	24 years	15 of 100 (Routine)
19 July 1951	Berlin Lock, US	daily rain	12.2 mm (0.5 in)	4.3 mm (0.17 in)	8 years	9 of 100 (Routine)
8 July 1951	Berlin Lock, US	daily rain	53.1 mm (2.1 in)	50.8 mm (2.0 in)	46 years	51 of 100 (Notable)
2 June 1951	Berlin Lock, US	daily rain	41.4 mm (1.6 in)	15.7 mm (0.6 in)	5 years	17 of 100 (Routine)
20 May 1951	Berlin Lock, US	daily rain	21.6 mm (0.9 in)	10.2 mm (0.4 in)	4 years	18 of 100 (Routine)
29 April 1951	Berlin Lock, US	daily rain	7.1 mm (0.28 in)	2.5 mm (0.10 in)	24 years	15 of 100 (Routine)
26 April 1951	Berlin Lock, US	daily rain	25.9 mm (1.0 in)	0.8 mm (0.03 in)	1 year	6 of 100 (Routine)
9 April 1951	Berlin Lock, US	daily rain	16.5 mm (0.6 in)	8.9 mm (0.35 in)	44 years	20 of 100 (Routine)
29 March 1951	Berlin Lock, US	daily rain	17.0 mm (0.7 in)	8.1 mm (0.32 in)	12 years	20 of 100 (Routine)
3 March 1951	Berlin Lock, US	daily rain	20.1 mm (0.8 in)	7.4 mm (0.29 in)	9 years	18 of 100 (Routine)
1 March 1951	Berlin Lock, US	daily rain	7.1 mm (0.28 in)	2.0 mm (0.08 in)	20 years	14 of 100 (Routine)
19 February 1951	Berlin Lock, US	daily rain	7.4 mm (0.29 in)	4.9 mm (0.19 in)	12 years	16 of 100 (Routine)
27 January 1951	Berlin Lock, US	daily rain	6.1 mm (0.24 in)	3.1 mm (0.12 in)	17 years	16 of 100 (Routine)

Extremes by Year

1894 to 1951

Yearly extremes at Berlin Lock: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.2 C (99.0 F)	1895	35.0 C (95.0 F)	5
Coldest night (TNn)	-31.7 C (-25.1 F)	1905	-25.0 C (-13.0 F)	5
Wettest day (Rx1day)	152.9 mm (6.0 in)	1938	49.7 mm (2.0 in)	32
Wettest five days (Rx5day)	197.3 mm (7.8 in)	1938	68.8 mm (2.7 in)	31
Longest dry spell (CDD)	40 days	1947	23 days	32

Hottest day (TXx)

The hottest day of the year at Berlin Lock, 1894 to 1951. The record is 37.2 C (99.0 F) in 1895, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Berlin Lock by year
Year	Hottest day (TXx)
1894	13.9 C (57.0 F)
1895	37.2 C (99.0 F)
1904	35.0 C (95.0 F)
1905	35.0 C (95.0 F)
1906	32.2 C (90.0 F)
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a

Coldest night (TNn)

The coldest night of the year at Berlin Lock, 1894 to 1951. The record is -31.7 C (-25.1 F) in 1905, marked on the chart; the median year is -25.0 C (-13.0 F).

Coldest night (TNn) at Berlin Lock by year
Year	Coldest night (TNn)
1894	-20.6 C (-5.1 F)
1895	-31.1 C (-24.0 F)
1904	-23.9 C (-11.0 F)
1905	-31.7 C (-25.1 F)
1906	-25.0 C (-13.0 F)
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a

Wettest day (Rx1day)

The wettest day of the year at Berlin Lock, 1894 to 1951. The record is 152.9 mm (6.0 in) in 1938, marked on the chart; the median year is 49.7 mm (2.0 in).

Wettest day (Rx1day) at Berlin Lock by year
Year	Wettest day (Rx1day)
1894	8.9 mm (0.35 in)
1895	40.6 mm (1.6 in)
1904	57.9 mm (2.3 in)
1905	99.1 mm (3.9 in)
1906	60.5 mm (2.4 in)
1925	57.2 mm (2.3 in)
1926	45.2 mm (1.8 in)
1927	50.3 mm (2.0 in)
1928	37.6 mm (1.5 in)
1929	40.9 mm (1.6 in)
1930	35.1 mm (1.4 in)
1931	49.0 mm (1.9 in)
1932	29.0 mm (1.1 in)
1933	29.0 mm (1.1 in)
1934	51.3 mm (2.0 in)
1935	48.3 mm (1.9 in)
1936	39.4 mm (1.6 in)
1937	69.3 mm (2.7 in)
1938	152.9 mm (6.0 in)
1939	50.8 mm (2.0 in)
1940	111.8 mm (4.4 in)
1941	39.6 mm (1.6 in)
1942	58.9 mm (2.3 in)
1943	37.6 mm (1.5 in)
1944	45.7 mm (1.8 in)
1945	96.3 mm (3.8 in)
1946	70.1 mm (2.8 in)
1947	47.2 mm (1.9 in)
1948	94.0 mm (3.7 in)
1949	35.6 mm (1.4 in)
1950	58.7 mm (2.3 in)
1951	53.1 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Berlin Lock, 1894 to 1951. The record is 197.3 mm (7.8 in) in 1938, marked on the chart; the median year is 68.8 mm (2.7 in).

Wettest five days (Rx5day) at Berlin Lock by year
Year	Wettest five days (Rx5day)
1894	n/a
1895	46.2 mm (1.8 in)
1904	94.5 mm (3.7 in)
1905	172.7 mm (6.8 in)
1906	69.6 mm (2.7 in)
1925	66.1 mm (2.6 in)
1926	59.7 mm (2.4 in)
1927	88.7 mm (3.5 in)
1928	62.2 mm (2.4 in)
1929	60.2 mm (2.4 in)
1930	65.9 mm (2.6 in)
1931	68.1 mm (2.7 in)
1932	57.1 mm (2.2 in)
1933	47.0 mm (1.9 in)
1934	86.6 mm (3.4 in)
1935	79.6 mm (3.1 in)
1936	49.5 mm (1.9 in)
1937	75.7 mm (3.0 in)
1938	197.3 mm (7.8 in)
1939	56.9 mm (2.2 in)
1940	144.8 mm (5.7 in)
1941	70.9 mm (2.8 in)
1942	87.1 mm (3.4 in)
1943	63.7 mm (2.5 in)
1944	64.4 mm (2.5 in)
1945	127.6 mm (5.0 in)
1946	80.3 mm (3.2 in)
1947	53.6 mm (2.1 in)
1948	94.0 mm (3.7 in)
1949	64.1 mm (2.5 in)
1950	105.4 mm (4.1 in)
1951	68.8 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Berlin Lock, 1894 to 1951. The record is 40 days in 1947, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Berlin Lock by year
Year	Longest dry spell (CDD)
1894	1 day
1895	30 days
1904	18 days
1905	26 days
1906	32 days
1925	16 days
1926	20 days
1927	33 days
1928	17 days
1929	17 days
1930	29 days
1931	18 days
1932	19 days
1933	24 days
1934	20 days
1935	12 days
1936	23 days
1937	23 days
1938	18 days
1939	23 days
1940	29 days
1941	29 days
1942	26 days
1943	25 days
1944	24 days
1945	22 days
1946	25 days
1947	40 days
1948	19 days
1949	34 days
1950	20 days
1951	14 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.

Download the Data

Data for Berlin Lock standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Berlin Lock 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Year	Days with data	Share of year	Complete
1894	31	8%	No
1895	270	74%	No
1904	209	57%	No
1905	360	99%	Yes
1906	221	61%	No