Blackddck Rs Weather Records (USC00210803)

Record envelope, standing records and threshold days for Blackddck Rs (USC00210803), Minnesota, United States, with 47 years of record.

Key Facts for Blackddck Rs

Blackddck Rs (USC00210803) is a weather station in Minnesota, United States at 47.72 latitude and -94.57 longitude, 427 m (1,401 ft) above sea level.
The station reports from 1907 to 1953, 47 years of record.
1,464 records set at Blackddck Rs still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Minnesota, United States, 47.72 latitude, -94.57 longitude.
Elevation: 427 m (1,401 ft).
Period of record: 1907 to 1953, 47 years.
Eligible elements: none yet.

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 Blackddck Rs. 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 Blackddck Rs, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	10.6 C (51.1 F)	-36.7 C (-34.1 F)	n/a	n/a
Feb	8.9 C (48.0 F)	-41.7 C (-43.1 F)	n/a	n/a
Mar	27.2 C (81.0 F)	-38.3 C (-36.9 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-18.9 C (-2.0 F)	n/a	n/a
May	37.2 C (99.0 F)	-10.0 C (14.0 F)	n/a	n/a
Jun	32.8 C (91.0 F)	-3.9 C (25.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	1.1 C (34.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	-1.1 C (30.0 F)	n/a	n/a
Sep	35.0 C (95.0 F)	-7.2 C (19.0 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-18.3 C (-0.9 F)	n/a	n/a
Nov	16.7 C (62.1 F)	-25.0 C (-13.0 F)	n/a	n/a
Dec	8.3 C (46.9 F)	-32.2 C (-26.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Blackddck Rs still stand. 1908 holds the most, with 224.

Wettest Day of Each Month

Sep: 87.9 mm (3.5 in)

The wettest day on record for each calendar month at Blackddck Rs. The most was 87.9 mm (3.5 in) on 2 September 1937.

Record daily precipitation for each month at Blackddck Rs
Month	Record daily precipitation (mm)	Date
Jan	13.0 mm (0.5 in)	24 January 1950
Feb	11.2 mm (0.4 in)	6 February 1946
Mar	16.0 mm (0.6 in)	6 March 1946
Apr	49.8 mm (2.0 in)	3 April 1940
May	81.8 mm (3.2 in)	30 May 1949
Jun	62.2 mm (2.4 in)	23 June 1950
Jul	55.9 mm (2.2 in)	4 July 1949
Aug	87.6 mm (3.4 in)	29 August 1937
Sep	87.9 mm (3.5 in)	2 September 1937
Oct	52.6 mm (2.1 in)	1 October 1907
Nov	22.1 mm (0.9 in)	14 November 1951
Dec	20.3 mm (0.8 in)	11 December 1949

Period of Record Coverage

1907 to 1949

16 years of record at Blackddck Rs, 1907 to 1949. 14 years have data for under 90 percent of days and are left out of rankings: 1907, 1935, 1936, 1937, 1938, 1939, 1940, 1942 and others.

Days with data per year at Blackddck Rs
Year	Days with data	Share of year	Complete
1907	327	90%	No
1908	361	99%	Yes
1935	30	8%	No
1936	203	55%	No
1937	205	56%	No
1938	210	58%	No
1939	210	58%	No
1940	182	50%	No
1942	210	58%	No
1943	195	53%	No
1944	177	48%	No
1945	351	96%	Yes
1946	277	76%	No
1947	133	36%	No
1948	216	59%	No
1949	79	22%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1907 to 1953

Yearly extremes at Blackddck Rs: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	1936	32.8 C (91.0 F)	16
Coldest night (TNn)	-41.7 C (-43.1 F)	1907	-18.3 C (-1.0 F)	16
Wettest day (Rx1day)	87.9 mm (3.5 in)	1937	39.1 mm (1.5 in)	23
Wettest five days (Rx5day)	176.5 mm (6.9 in)	1937	56.7 mm (2.2 in)	23
Longest dry spell (CDD)	28 days	1952	18 days	23

Hottest day (TXx)

The hottest day of the year at Blackddck Rs, 1907 to 1953. The record is 38.9 C (102.0 F) in 1936, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at Blackddck Rs by year
Year	Hottest day (TXx)
1907	32.2 C (90.0 F)
1908	32.8 C (91.0 F)
1932	n/a
1933	n/a
1934	n/a
1935	20.0 C (68.0 F)
1936	38.9 C (102.0 F)
1937	35.0 C (95.0 F)
1938	32.8 C (91.0 F)
1939	37.2 C (99.0 F)
1940	34.4 C (93.9 F)
1942	30.6 C (87.1 F)
1943	31.7 C (89.1 F)
1944	33.9 C (93.0 F)
1945	35.0 C (95.0 F)
1946	32.2 C (90.0 F)
1947	23.3 C (73.9 F)
1948	35.0 C (95.0 F)
1949	7.8 C (46.0 F)
1950	n/a
1951	n/a
1952	n/a
1953	n/a

Coldest night (TNn)

The coldest night of the year at Blackddck Rs, 1907 to 1953. The record is -41.7 C (-43.1 F) in 1907, marked on the chart; the median year is -18.3 C (-1.0 F).

Coldest night (TNn) at Blackddck Rs by year
Year	Coldest night (TNn)
1907	-41.7 C (-43.1 F)
1908	-36.1 C (-33.0 F)
1932	n/a
1933	n/a
1934	n/a
1935	-7.2 C (19.0 F)
1936	-18.9 C (-2.0 F)
1937	-17.8 C (0.0 F)
1938	-7.2 C (19.0 F)
1939	-15.6 C (3.9 F)
1940	-17.2 C (1.0 F)
1942	-14.4 C (6.1 F)
1943	-13.9 C (7.0 F)
1944	-6.1 C (21.0 F)
1945	-36.7 C (-34.1 F)
1946	-35.0 C (-31.0 F)
1947	-36.1 C (-33.0 F)
1948	-38.3 C (-36.9 F)
1949	-38.3 C (-36.9 F)
1950	n/a
1951	n/a
1952	n/a
1953	n/a

Wettest day (Rx1day)

The wettest day of the year at Blackddck Rs, 1907 to 1953. The record is 87.9 mm (3.5 in) in 1937, marked on the chart; the median year is 39.1 mm (1.5 in).

Wettest day (Rx1day) at Blackddck Rs by year
Year	Wettest day (Rx1day)
1907	52.6 mm (2.1 in)
1908	54.9 mm (2.2 in)
1932	15.7 mm (0.6 in)
1933	20.6 mm (0.8 in)
1934	39.1 mm (1.5 in)
1935	19.6 mm (0.8 in)
1936	38.1 mm (1.5 in)
1937	87.9 mm (3.5 in)
1938	39.1 mm (1.5 in)
1939	54.1 mm (2.1 in)
1940	49.8 mm (2.0 in)
1942	37.1 mm (1.5 in)
1943	57.2 mm (2.3 in)
1944	36.1 mm (1.4 in)
1945	26.4 mm (1.0 in)
1946	47.0 mm (1.9 in)
1947	35.3 mm (1.4 in)
1948	39.1 mm (1.5 in)
1949	81.8 mm (3.2 in)
1950	62.2 mm (2.4 in)
1951	35.1 mm (1.4 in)
1952	39.9 mm (1.6 in)
1953	62.2 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Blackddck Rs, 1907 to 1953. The record is 176.5 mm (6.9 in) in 1937, marked on the chart; the median year is 56.7 mm (2.2 in).

Wettest five days (Rx5day) at Blackddck Rs by year
Year	Wettest five days (Rx5day)
1907	52.6 mm (2.1 in)
1908	87.1 mm (3.4 in)
1932	17.8 mm (0.7 in)
1933	32.0 mm (1.3 in)
1934	49.6 mm (2.0 in)
1935	42.7 mm (1.7 in)
1936	58.2 mm (2.3 in)
1937	176.5 mm (6.9 in)
1938	71.3 mm (2.8 in)
1939	86.1 mm (3.4 in)
1940	56.7 mm (2.2 in)
1942	80.8 mm (3.2 in)
1943	56.6 mm (2.2 in)
1944	50.5 mm (2.0 in)
1945	49.3 mm (1.9 in)
1946	72.1 mm (2.8 in)
1947	14.7 mm (0.6 in)
1948	41.1 mm (1.6 in)
1949	136.4 mm (5.4 in)
1950	133.1 mm (5.2 in)
1951	67.5 mm (2.7 in)
1952	53.8 mm (2.1 in)
1953	84.4 mm (3.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Blackddck Rs, 1907 to 1953. The record is 28 days in 1952, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Blackddck Rs by year
Year	Longest dry spell (CDD)
1907	23 days
1908	25 days
1932	10 days
1933	22 days
1934	12 days
1935	13 days
1936	12 days
1937	11 days
1938	26 days
1939	17 days
1940	23 days
1942	3 days
1943	4 days
1944	25 days
1945	21 days
1946	17 days
1947	18 days
1948	20 days
1949	22 days
1950	27 days
1951	14 days
1952	28 days
1953	15 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 Blackddck Rs standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Blackddck Rs 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 2026-10-14 (14 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).