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Built 2026-10-15 (15 October 2026)

Glenham Weather Records (USC00393339)

Record envelope, standing records and threshold days for Glenham (USC00393339), South Dakota, United States, with 32 years of record.

Key Facts for Glenham

  • Glenham (USC00393339) is a weather station in South Dakota, United States at 45.53 latitude and -100.27 longitude, 509 m (1,670 ft) above sea level.
  • The station reports from 1921 to 1952, 32 years of record.
  • 646 records set at Glenham still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: South Dakota, United States, 45.53 latitude, -100.27 longitude.
  • Elevation: 509 m (1,670 ft).
  • Period of record: 1921 to 1952, 32 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Glenham, with 2026 drawn through them The band shows the record high and record low for each calendar day at Glenham. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Glenham. 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 Glenham, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
May-0.6 C (30.9 F)-17.8 C (0.0 F)n/an/a
Jun38.9 C (102.0 F)9.4 C (48.9 F)n/an/a
Jul38.9 C (102.0 F)5.6 C (42.1 F)n/an/a
Aug37.2 C (99.0 F)3.3 C (37.9 F)n/an/a
Sep35.0 C (95.0 F)-1.7 C (28.9 F)n/an/a
Oct30.0 C (86.0 F)-6.1 C (21.0 F)n/an/a
Nov25.6 C (78.1 F)-22.8 C (-9.0 F)n/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

646 standing records
Standing records at Glenham by the year they were set 646 records at Glenham still stand. 1921 holds the most, with 642. 02004006008001921: 6421931: 419211931
646 records at Glenham still stand. 1921 holds the most, with 642.
Standing records at Glenham by the year they were set
Year setStanding records
1921642
19314

Wettest Day of Each Month

Jun: 70.6 mm (2.8 in)
Record daily precipitation for each month at Glenham The wettest day on record for each calendar month at Glenham. The most was 70.6 mm (2.8 in) on 4 June 1942. 020406080 Jan: 25.4 mm (1.0 in), 20 January 1949 Jan Feb: 19.1 mm (0.8 in), 24 February 1930 Feb Mar: 16.8 mm (0.7 in), 16 March 1946 Mar Apr: 31.5 mm (1.2 in), 25 April 1948 Apr May: 60.5 mm (2.4 in), 31 May 1949 May Jun: 70.6 mm (2.8 in), 4 June 1942 Jun Jul: 52.3 mm (2.1 in), 15 July 1945 Jul Aug: 50.0 mm (2.0 in), 30 August 1951 Aug Sep: 50.8 mm (2.0 in), 9 September 1927 Sep Oct: 40.6 mm (1.6 in), 10 October 1949 Oct Nov: 21.1 mm (0.8 in), 14 November 1928 Nov Dec: 12.4 mm (0.5 in), 11 December 1949 Dec
The wettest day on record for each calendar month at Glenham. The most was 70.6 mm (2.8 in) on 4 June 1942.
Record daily precipitation for each month at Glenham
MonthRecord daily precipitation (mm)Date
Jan25.4 mm (1.0 in)20 January 1949
Feb19.1 mm (0.8 in)24 February 1930
Mar16.8 mm (0.7 in)16 March 1946
Apr31.5 mm (1.2 in)25 April 1948
May60.5 mm (2.4 in)31 May 1949
Jun70.6 mm (2.8 in)4 June 1942
Jul52.3 mm (2.1 in)15 July 1945
Aug50.0 mm (2.0 in)30 August 1951
Sep50.8 mm (2.0 in)9 September 1927
Oct40.6 mm (1.6 in)10 October 1949
Nov21.1 mm (0.8 in)14 November 1928
Dec12.4 mm (0.5 in)11 December 1949

Period of Record Coverage

1921 to 1931
Days with data per year at Glenham 2 years of record at Glenham, 1921 to 1931. 2 years have data for under 90 percent of days and are left out of rankings: 1921, 1931. 1921: 161 of 365 days1931: 1 of 365 days
2 years of record at Glenham, 1921 to 1931. 2 years have data for under 90 percent of days and are left out of rankings: 1921, 1931.
Days with data per year at Glenham
YearDays with dataShare of yearComplete
192116144%No
193110%No

Latest Records

0

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

Extremes by Year

1921 to 1952
Yearly extremes at Glenham: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)192119.2 C (66.5 F)2
Coldest night (TNn)-22.8 C (-9.0 F)1921-20.3 C (-4.5 F)2
Wettest day (Rx1day)70.6 mm (2.8 in)194235.2 mm (1.4 in)28
Wettest five days (Rx5day)111.0 mm (4.4 in)194154.2 mm (2.1 in)28
Longest dry spell (CDD)78 days195238 days28

Hottest day (TXx)

Hottest day (TXx) at Glenham by year The hottest day of the year at Glenham, 1921 to 1952. The record is 38.9 C (102.0 F) in 1921, marked on the chart; the median year is 19.2 C (66.5 F). -10010203040193019401950Record: 38.9 C (102.0 F) in 1921
The hottest day of the year at Glenham, 1921 to 1952. The record is 38.9 C (102.0 F) in 1921, marked on the chart; the median year is 19.2 C (66.5 F).
Hottest day (TXx) at Glenham by year
YearHottest day (TXx)
192138.9 C (102.0 F)
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931-0.6 C (30.9 F)
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a

Coldest night (TNn)

Coldest night (TNn) at Glenham by year The coldest night of the year at Glenham, 1921 to 1952. The record is -22.8 C (-9.0 F) in 1921, marked on the chart; the median year is -20.3 C (-4.5 F). -24-22-20-18-16193019401950Record: -22.8 C (-9.0 F) in 1921
The coldest night of the year at Glenham, 1921 to 1952. The record is -22.8 C (-9.0 F) in 1921, marked on the chart; the median year is -20.3 C (-4.5 F).
Coldest night (TNn) at Glenham by year
YearColdest night (TNn)
1921-22.8 C (-9.0 F)
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931-17.8 C (0.0 F)
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Glenham by year The wettest day of the year at Glenham, 1921 to 1952. The record is 70.6 mm (2.8 in) in 1942, marked on the chart; the median year is 35.2 mm (1.4 in). 020406080193019401950Record: 70.6 mm (2.8 in) in 1942
The wettest day of the year at Glenham, 1921 to 1952. The record is 70.6 mm (2.8 in) in 1942, marked on the chart; the median year is 35.2 mm (1.4 in).
Wettest day (Rx1day) at Glenham by year
YearWettest day (Rx1day)
192148.3 mm (1.9 in)
192625.9 mm (1.0 in)
192750.8 mm (2.0 in)
192834.8 mm (1.4 in)
192921.8 mm (0.9 in)
193033.0 mm (1.3 in)
193143.7 mm (1.7 in)
193234.5 mm (1.4 in)
193320.8 mm (0.8 in)
193418.0 mm (0.7 in)
193538.9 mm (1.5 in)
193617.0 mm (0.7 in)
193734.0 mm (1.3 in)
193826.7 mm (1.1 in)
193956.9 mm (2.2 in)
194035.6 mm (1.4 in)
194168.6 mm (2.7 in)
194270.6 mm (2.8 in)
194359.7 mm (2.4 in)
194428.4 mm (1.1 in)
194552.3 mm (2.1 in)
194650.8 mm (2.0 in)
194731.2 mm (1.2 in)
194833.3 mm (1.3 in)
194960.5 mm (2.4 in)
195033.0 mm (1.3 in)
195150.0 mm (2.0 in)
195245.7 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Glenham by year The wettest five days of the year at Glenham, 1921 to 1952. The record is 111.0 mm (4.4 in) in 1941, marked on the chart; the median year is 54.2 mm (2.1 in). 0255075100125193019401950Record: 111.0 mm (4.4 in) in 1941
The wettest five days of the year at Glenham, 1921 to 1952. The record is 111.0 mm (4.4 in) in 1941, marked on the chart; the median year is 54.2 mm (2.1 in).
Wettest five days (Rx5day) at Glenham by year
YearWettest five days (Rx5day)
192148.7 mm (1.9 in)
192643.9 mm (1.7 in)
192776.7 mm (3.0 in)
192851.9 mm (2.0 in)
192923.1 mm (0.9 in)
193040.9 mm (1.6 in)
193147.8 mm (1.9 in)
193261.9 mm (2.4 in)
193329.2 mm (1.1 in)
193429.5 mm (1.2 in)
193558.4 mm (2.3 in)
193617.0 mm (0.7 in)
193734.0 mm (1.3 in)
193835.4 mm (1.4 in)
193964.0 mm (2.5 in)
194037.2 mm (1.5 in)
1941111.0 mm (4.4 in)
194294.6 mm (3.7 in)
194364.3 mm (2.5 in)
194452.3 mm (2.1 in)
194562.8 mm (2.5 in)
194676.2 mm (3.0 in)
194755.1 mm (2.2 in)
194853.3 mm (2.1 in)
194969.1 mm (2.7 in)
195074.7 mm (2.9 in)
195157.2 mm (2.3 in)
195255.9 mm (2.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Glenham by year The longest dry spell of the year at Glenham, 1921 to 1952. The record is 78 days in 1952, marked on the chart; the median year is 38 days. 20406080193019401950Record: 78 days in 1952
The longest dry spell of the year at Glenham, 1921 to 1952. The record is 78 days in 1952, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Glenham by year
YearLongest dry spell (CDD)
192135 days
192635 days
192733 days
192829 days
192925 days
193042 days
193140 days
193248 days
193346 days
193462 days
193544 days
193638 days
193736 days
193827 days
193964 days
194041 days
194141 days
194238 days
194347 days
194434 days
194545 days
194627 days
194729 days
194825 days
194951 days
195033 days
195136 days
195278 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 Glenham standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Glenham 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 . Last revised (2025-12-31).