Record envelope, standing records and threshold days for Glen Ullin (USC00323496), North Dakota, United States, with 69 years of record.
Key Facts for Glen Ullin
Glen Ullin (USC00323496) is a weather station in North Dakota, United States at 46.81 latitude and -101.83 longitude, 636 m (2,088 ft) above sea level.
The station reports from 1948 to 2016, 69 years of record.
0 records set at Glen Ullin still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Glen Ullin set a daily record precipitation of 15.2 mm (0.6 in) on 23 October 2015.
About the Station
Location: North Dakota, United States, 46.81 latitude, -101.83 longitude.
Elevation: 636 m (2,088 ft).
Period of record: 1948 to 2016, 69 years.
Eligible elements: prcp.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Glen Ullin. 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 Glen Ullin, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
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Feb
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Mar
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Apr
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May
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Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Which Years Hold Standing Records
0 standing records
0 records at Glen Ullin still stand.
Standing records at Glen Ullin by the year they were set
Year set
Standing records
Wettest Day of Each Month
Sep: 100.6 mm (4.0 in)
The wettest day on record for each calendar month at Glen Ullin. The most was 100.6 mm (4.0 in) on 15 September 1994.
Record daily precipitation for each month at Glen Ullin
Yearly extremes at Glen Ullin: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Wettest day (Rx1day)
100.6 mm (4.0 in)
1994
45.0 mm (1.8 in)
35
Wettest five days (Rx5day)
162.5 mm (6.4 in)
1996
50.8 mm (2.0 in)
35
Longest dry spell (CDD)
62 days
2013
38 days
35
Wettest day (Rx1day)
The wettest day of the year at Glen Ullin, 1948 to 2016. The record is 100.6 mm (4.0 in) in 1994, marked on the chart; the median year is 45.0 mm (1.8 in).
Wettest day (Rx1day) at Glen Ullin by year
Year
Wettest day (Rx1day)
1948
10.4 mm (0.4 in)
1949
37.3 mm (1.5 in)
1950
33.3 mm (1.3 in)
1951
38.6 mm (1.5 in)
1986
30.5 mm (1.2 in)
1987
44.2 mm (1.7 in)
1988
48.3 mm (1.9 in)
1989
45.2 mm (1.8 in)
1990
45.0 mm (1.8 in)
1991
50.8 mm (2.0 in)
1992
36.3 mm (1.4 in)
1993
48.3 mm (1.9 in)
1994
100.6 mm (4.0 in)
1995
63.5 mm (2.5 in)
1996
78.7 mm (3.1 in)
1997
45.7 mm (1.8 in)
1998
80.3 mm (3.2 in)
1999
69.3 mm (2.7 in)
2000
38.1 mm (1.5 in)
2001
40.1 mm (1.6 in)
2002
50.8 mm (2.0 in)
2003
46.0 mm (1.8 in)
2004
27.9 mm (1.1 in)
2005
50.8 mm (2.0 in)
2006
37.1 mm (1.5 in)
2007
43.2 mm (1.7 in)
2008
29.0 mm (1.1 in)
2009
41.9 mm (1.6 in)
2010
66.0 mm (2.6 in)
2011
81.3 mm (3.2 in)
2012
33.3 mm (1.3 in)
2013
82.6 mm (3.3 in)
2014
88.9 mm (3.5 in)
2015
33.0 mm (1.3 in)
2016
25.4 mm (1.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Glen Ullin, 1948 to 2016. The record is 162.5 mm (6.4 in) in 1996, marked on the chart; the median year is 50.8 mm (2.0 in).
Wettest five days (Rx5day) at Glen Ullin by year
Year
Wettest five days (Rx5day)
1948
25.6 mm (1.0 in)
1949
42.4 mm (1.7 in)
1950
39.1 mm (1.5 in)
1951
46.4 mm (1.8 in)
1986
45.9 mm (1.8 in)
1987
44.2 mm (1.7 in)
1988
48.3 mm (1.9 in)
1989
50.7 mm (2.0 in)
1990
47.5 mm (1.9 in)
1991
56.3 mm (2.2 in)
1992
62.7 mm (2.5 in)
1993
52.6 mm (2.1 in)
1994
105.6 mm (4.2 in)
1995
83.4 mm (3.3 in)
1996
162.5 mm (6.4 in)
1997
45.7 mm (1.8 in)
1998
144.3 mm (5.7 in)
1999
71.3 mm (2.8 in)
2000
53.3 mm (2.1 in)
2001
70.0 mm (2.8 in)
2002
55.4 mm (2.2 in)
2003
49.0 mm (1.9 in)
2004
47.2 mm (1.9 in)
2005
50.8 mm (2.0 in)
2006
41.9 mm (1.6 in)
2007
26.7 mm (1.1 in)
2008
50.8 mm (2.0 in)
2009
61.0 mm (2.4 in)
2010
66.0 mm (2.6 in)
2011
61.7 mm (2.4 in)
2012
42.2 mm (1.7 in)
2013
87.6 mm (3.4 in)
2014
101.6 mm (4.0 in)
2015
42.7 mm (1.7 in)
2016
25.4 mm (1.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Glen Ullin, 1948 to 2016. The record is 62 days in 2013, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Glen Ullin by year
Year
Longest dry spell (CDD)
1948
37 days
1949
32 days
1950
23 days
1951
33 days
1986
43 days
1987
54 days
1988
38 days
1989
45 days
1990
46 days
1991
38 days
1992
31 days
1993
61 days
1994
30 days
1995
27 days
1996
28 days
1997
31 days
1998
37 days
1999
55 days
2000
35 days
2001
42 days
2002
19 days
2003
25 days
2004
55 days
2005
26 days
2006
44 days
2007
43 days
2008
33 days
2009
42 days
2010
33 days
2011
1 day
2012
53 days
2013
62 days
2014
41 days
2015
43 days
2016
60 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 Glen Ullin standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Glen Ullin 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.