Record envelope, standing records and threshold days for Marmarth (USC00325573), North Dakota, United States, with 49 years of record.
Key Facts for Marmarth
Marmarth (USC00325573) is a weather station in North Dakota, United States at 46.30 latitude and -103.92 longitude, 827 m (2,713 ft) above sea level.
The station reports from 1909 to 1957, 49 years of record.
1,464 records set at Marmarth still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Marmarth set a daily record high maximum temperature of 23.9 C (75.0 F) on 21 March 1957.
About the Station
Location: North Dakota, United States, 46.30 latitude, -103.92 longitude.
Elevation: 827 m (2,713 ft).
Period of record: 1909 to 1957, 49 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Marmarth. 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 Marmarth, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.6 C (60.1 F)
-42.8 C (-45.0 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-46.7 C (-52.1 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-32.2 C (-26.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-20.0 C (-4.0 F)
n/a
n/a
May
40.0 C (104.0 F)
-11.7 C (10.9 F)
n/a
n/a
Jun
42.2 C (108.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
42.2 C (108.0 F)
0.0 C (32.0 F)
n/a
n/a
Aug
43.3 C (109.9 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
38.3 C (100.9 F)
-11.7 C (10.9 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-20.6 C (-5.1 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-30.6 C (-23.1 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-38.9 C (-38.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Marmarth still stand. 1936 holds the most, with 84.
Standing records at Marmarth by the year they were set
Year set
Standing records
1911
25
1912
25
1913
27
1914
30
1915
38
1916
49
1917
43
1918
52
1919
70
1920
32
1921
29
1922
23
1923
14
1924
19
1925
25
1926
21
1927
32
1928
8
1929
48
1930
33
1931
53
1932
29
1933
22
1934
51
1935
31
1936
84
1937
36
1938
22
1939
39
1940
26
1941
21
1942
27
1943
21
1944
18
1945
41
1946
26
1947
18
1948
32
1949
33
1950
29
1951
24
1952
28
1953
17
1954
31
1955
31
1956
27
1957
4
All-Time Record Progression
1 new records
1 all-time records were set at Marmarth between 7 August 1949 and 7 August 1949. Each dot is a new record.
When Marmarth set new all-time records
Date
Kind
Detail
1949-08-07
Record high maximum temperature
Record high maximum temperature 43.3 C (109.9 F)
Wettest Day of Each Month
Jun: 90.2 mm (3.6 in)
The wettest day on record for each calendar month at Marmarth. The most was 90.2 mm (3.6 in) on 12 June 1915.
Record daily precipitation for each month at Marmarth
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
16 January 1933
Feb
16.5 mm (0.6 in)
15 February 1910
Mar
22.9 mm (0.9 in)
24 March 1937
Apr
32.3 mm (1.3 in)
14 April 1910
May
67.3 mm (2.6 in)
23 May 1933
Jun
90.2 mm (3.6 in)
12 June 1915
Jul
47.0 mm (1.9 in)
5 July 1939
Aug
68.1 mm (2.7 in)
15 August 1918
Sep
40.1 mm (1.6 in)
20 September 1931
Oct
26.9 mm (1.1 in)
5 October 1946
Nov
20.3 mm (0.8 in)
4 November 1948
Dec
15.7 mm (0.6 in)
14 December 1927
Period of Record Coverage
1911 to 1957
Complete yearUnder 90 percent of days
47 years of record at Marmarth, 1911 to 1957. 14 years have data for under 90 percent of days and are left out of rankings: 1911, 1912, 1914, 1922, 1923, 1924, 1925, 1927 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Marmarth, 1913 to 1955. Blue stripes are years cooler than the station's own mean of 6.1 C (42.9 F); red stripes are warmer. The coolest year was 1916, at 3.1 C (37.5 F), and the warmest was 1931, at 8.3 C (46.9 F). The strongest colour marks a difference of 3.1 C (5.6 F).
Annual mean temperature at Marmarth as warming stripes, 1913 to 1955
Year
Annual mean temperature
Difference from the station mean
1913
5.8 C
-0.24 C
1915
5.0 C
-1.06 C
1916
3.1 C
-3.01 C
1917
3.1 C
-2.96 C
1918
5.1 C
-0.94 C
1920
5.3 C
-0.74 C
1921
6.7 C
+0.61 C
1926
6.4 C
+0.34 C
1927
5.4 C
-0.66 C
1930
6.8 C
+0.76 C
1931
8.3 C
+2.20 C
1933
6.6 C
+0.47 C
1934
8.3 C
+2.18 C
1935
6.5 C
+0.38 C
1936
6.2 C
+0.11 C
1938
7.1 C
+0.99 C
1939
6.7 C
+0.62 C
1940
6.2 C
+0.07 C
1941
7.4 C
+1.29 C
1942
6.4 C
+0.32 C
1943
6.2 C
+0.12 C
1944
5.8 C
-0.27 C
1945
5.5 C
-0.58 C
1946
7.3 C
+1.26 C
1947
6.1 C
-0.01 C
1948
6.4 C
+0.34 C
1949
5.7 C
-0.41 C
1950
4.1 C
-1.95 C
1951
4.1 C
-1.98 C
1953
7.6 C
+1.48 C
1954
7.3 C
+1.19 C
1955
6.2 C
+0.11 C
The fitted trend in annual mean temperature here over 1913 to 1955 is 0.31 C (-0.04 to 0.66) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.6 F (-0.1 to 1.2) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Marmarth
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.31 C (-0.04 to 0.66) per decade
0.6 F (-0.1 to 1.2) per decade
1913 to 1955
32
Not clearly different from zero
Mean daily maximum
0.4 C (0.1 to 0.8) per decade
0.8 F (0.1 to 1.5) per decade
1913 to 1955
32
Rise
Mean daily minimum
0.2 C (-0.2 to 0.5) per decade
0.3 F (-0.3 to 1.0) per decade
1913 to 1955
32
Not clearly different from zero
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1909 to 1957
Yearly extremes at Marmarth: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.3 C (109.9 F)
1949
38.3 C (100.9 F)
47
Coldest night (TNn)
-46.7 C (-52.1 F)
1936
-36.1 C (-33.0 F)
47
Wettest day (Rx1day)
90.2 mm (3.6 in)
1915
35.6 mm (1.4 in)
49
Wettest five days (Rx5day)
158.5 mm (6.2 in)
1929
51.6 mm (2.0 in)
49
Longest dry spell (CDD)
116 days
1952
33 days
49
Hottest day (TXx)
The hottest day of the year at Marmarth, 1909 to 1957. The record is 43.3 C (109.9 F) in 1949, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Marmarth by year
Year
Hottest day (TXx)
1909
n/a
1910
n/a
1911
40.0 C (104.0 F)
1912
40.0 C (104.0 F)
1913
36.7 C (98.1 F)
1914
38.3 C (100.9 F)
1915
34.4 C (93.9 F)
1916
35.6 C (96.1 F)
1917
40.0 C (104.0 F)
1918
36.1 C (97.0 F)
1919
42.2 C (108.0 F)
1920
38.3 C (100.9 F)
1921
38.9 C (102.0 F)
1922
22.2 C (72.0 F)
1923
12.2 C (54.0 F)
1924
33.3 C (91.9 F)
1925
36.7 C (98.1 F)
1926
40.0 C (104.0 F)
1927
32.2 C (90.0 F)
1928
22.2 C (72.0 F)
1929
37.8 C (100.0 F)
1930
38.9 C (102.0 F)
1931
41.7 C (107.1 F)
1932
38.3 C (100.9 F)
1933
40.0 C (104.0 F)
1934
39.4 C (102.9 F)
1935
40.6 C (105.1 F)
1936
42.2 C (108.0 F)
1937
39.4 C (102.9 F)
1938
37.8 C (100.0 F)
1939
36.1 C (97.0 F)
1940
38.3 C (100.9 F)
1941
39.4 C (102.9 F)
1942
36.7 C (98.1 F)
1943
37.2 C (99.0 F)
1944
35.0 C (95.0 F)
1945
38.3 C (100.9 F)
1946
37.2 C (99.0 F)
1947
37.8 C (100.0 F)
1948
38.3 C (100.9 F)
1949
43.3 C (109.9 F)
1950
36.1 C (97.0 F)
1951
38.9 C (102.0 F)
1952
38.3 C (100.9 F)
1953
35.6 C (96.1 F)
1954
38.3 C (100.9 F)
1955
39.4 C (102.9 F)
1956
37.2 C (99.0 F)
1957
23.9 C (75.0 F)
Coldest night (TNn)
The coldest night of the year at Marmarth, 1909 to 1957. The record is -46.7 C (-52.1 F) in 1936, marked on the chart; the median year is -36.1 C (-33.0 F).
Coldest night (TNn) at Marmarth by year
Year
Coldest night (TNn)
1909
n/a
1910
n/a
1911
-32.8 C (-27.0 F)
1912
-31.7 C (-25.1 F)
1913
-32.8 C (-27.0 F)
1914
-35.0 C (-31.0 F)
1915
-37.2 C (-35.0 F)
1916
-42.8 C (-45.0 F)
1917
-40.0 C (-40.0 F)
1918
-38.9 C (-38.0 F)
1919
-34.4 C (-29.9 F)
1920
-32.8 C (-27.0 F)
1921
-30.6 C (-23.1 F)
1922
-37.2 C (-35.0 F)
1923
-36.1 C (-33.0 F)
1924
-35.6 C (-32.1 F)
1925
-38.9 C (-38.0 F)
1926
-32.2 C (-26.0 F)
1927
-39.4 C (-38.9 F)
1928
-40.6 C (-41.1 F)
1929
-38.9 C (-38.0 F)
1930
-34.4 C (-29.9 F)
1931
-25.6 C (-14.1 F)
1932
-35.0 C (-31.0 F)
1933
-42.8 C (-45.0 F)
1934
-30.0 C (-22.0 F)
1935
-33.3 C (-27.9 F)
1936
-46.7 C (-52.1 F)
1937
-38.3 C (-36.9 F)
1938
-36.7 C (-34.1 F)
1939
-37.8 C (-36.0 F)
1940
-38.3 C (-36.9 F)
1941
-25.0 C (-13.0 F)
1942
-36.7 C (-34.1 F)
1943
-36.1 C (-33.0 F)
1944
-37.2 C (-35.0 F)
1945
-36.1 C (-33.0 F)
1946
-33.3 C (-27.9 F)
1947
-32.8 C (-27.0 F)
1948
-32.2 C (-26.0 F)
1949
-41.7 C (-43.1 F)
1950
-35.6 C (-32.1 F)
1951
-37.2 C (-35.0 F)
1952
-33.9 C (-29.0 F)
1953
-28.9 C (-20.0 F)
1954
-38.3 C (-36.9 F)
1955
-30.6 C (-23.1 F)
1956
-30.0 C (-22.0 F)
1957
-37.2 C (-35.0 F)
Wettest day (Rx1day)
The wettest day of the year at Marmarth, 1909 to 1957. The record is 90.2 mm (3.6 in) in 1915, marked on the chart; the median year is 35.6 mm (1.4 in).
Wettest day (Rx1day) at Marmarth by year
Year
Wettest day (Rx1day)
1909
44.7 mm (1.8 in)
1910
32.3 mm (1.3 in)
1911
32.5 mm (1.3 in)
1912
27.9 mm (1.1 in)
1913
25.4 mm (1.0 in)
1914
34.5 mm (1.4 in)
1915
90.2 mm (3.6 in)
1916
26.7 mm (1.1 in)
1917
41.4 mm (1.6 in)
1918
68.1 mm (2.7 in)
1919
14.5 mm (0.6 in)
1920
20.1 mm (0.8 in)
1921
41.9 mm (1.6 in)
1922
16.5 mm (0.6 in)
1923
7.6 mm (0.30 in)
1924
25.4 mm (1.0 in)
1925
53.3 mm (2.1 in)
1926
27.4 mm (1.1 in)
1927
48.5 mm (1.9 in)
1928
5.1 mm (0.20 in)
1929
51.6 mm (2.0 in)
1930
45.7 mm (1.8 in)
1931
40.1 mm (1.6 in)
1932
27.7 mm (1.1 in)
1933
67.3 mm (2.6 in)
1934
23.9 mm (0.9 in)
1935
30.5 mm (1.2 in)
1936
24.1 mm (0.9 in)
1937
44.5 mm (1.8 in)
1938
26.7 mm (1.1 in)
1939
47.0 mm (1.9 in)
1940
29.2 mm (1.1 in)
1941
45.2 mm (1.8 in)
1942
35.6 mm (1.4 in)
1943
45.7 mm (1.8 in)
1944
36.8 mm (1.4 in)
1945
26.7 mm (1.1 in)
1946
35.8 mm (1.4 in)
1947
36.8 mm (1.4 in)
1948
39.4 mm (1.6 in)
1949
24.9 mm (1.0 in)
1950
38.1 mm (1.5 in)
1951
33.0 mm (1.3 in)
1952
38.1 mm (1.5 in)
1953
54.6 mm (2.1 in)
1954
36.3 mm (1.4 in)
1955
33.3 mm (1.3 in)
1956
36.6 mm (1.4 in)
1957
3.3 mm (0.13 in)
Wettest five days (Rx5day)
The wettest five days of the year at Marmarth, 1909 to 1957. The record is 158.5 mm (6.2 in) in 1929, marked on the chart; the median year is 51.6 mm (2.0 in).
Wettest five days (Rx5day) at Marmarth by year
Year
Wettest five days (Rx5day)
1909
89.7 mm (3.5 in)
1910
32.8 mm (1.3 in)
1911
41.7 mm (1.6 in)
1912
46.7 mm (1.8 in)
1913
48.6 mm (1.9 in)
1914
54.1 mm (2.1 in)
1915
109.3 mm (4.3 in)
1916
28.9 mm (1.1 in)
1917
49.5 mm (1.9 in)
1918
88.1 mm (3.5 in)
1919
18.8 mm (0.7 in)
1920
20.9 mm (0.8 in)
1921
54.1 mm (2.1 in)
1922
19.1 mm (0.8 in)
1923
8.9 mm (0.35 in)
1924
36.3 mm (1.4 in)
1925
57.4 mm (2.3 in)
1926
54.6 mm (2.1 in)
1927
64.3 mm (2.5 in)
1928
5.3 mm (0.21 in)
1929
158.5 mm (6.2 in)
1930
51.6 mm (2.0 in)
1931
59.4 mm (2.3 in)
1932
48.1 mm (1.9 in)
1933
74.1 mm (2.9 in)
1934
42.4 mm (1.7 in)
1935
32.0 mm (1.3 in)
1936
28.0 mm (1.1 in)
1937
92.0 mm (3.6 in)
1938
60.0 mm (2.4 in)
1939
99.3 mm (3.9 in)
1940
61.7 mm (2.4 in)
1941
82.8 mm (3.3 in)
1942
47.9 mm (1.9 in)
1943
82.8 mm (3.3 in)
1944
68.6 mm (2.7 in)
1945
43.1 mm (1.7 in)
1946
58.9 mm (2.3 in)
1947
81.5 mm (3.2 in)
1948
54.4 mm (2.1 in)
1949
26.2 mm (1.0 in)
1950
45.0 mm (1.8 in)
1951
48.0 mm (1.9 in)
1952
44.2 mm (1.7 in)
1953
54.6 mm (2.1 in)
1954
55.2 mm (2.2 in)
1955
46.2 mm (1.8 in)
1956
58.6 mm (2.3 in)
1957
4.6 mm (0.18 in)
Longest dry spell (CDD)
The longest dry spell of the year at Marmarth, 1909 to 1957. The record is 116 days in 1952, marked on the chart; the median year is 33 days.
Longest dry spell (CDD) at Marmarth by year
Year
Longest dry spell (CDD)
1909
35 days
1910
38 days
1911
55 days
1912
49 days
1913
61 days
1914
45 days
1915
47 days
1916
24 days
1917
39 days
1918
21 days
1919
34 days
1920
29 days
1921
37 days
1922
29 days
1923
25 days
1924
22 days
1925
32 days
1926
37 days
1927
28 days
1928
61 days
1929
25 days
1930
38 days
1931
33 days
1932
40 days
1933
30 days
1934
33 days
1935
36 days
1936
46 days
1937
51 days
1938
33 days
1939
33 days
1940
29 days
1941
42 days
1942
26 days
1943
38 days
1944
45 days
1945
30 days
1946
27 days
1947
26 days
1948
29 days
1949
51 days
1950
28 days
1951
33 days
1952
116 days
1953
31 days
1954
31 days
1955
43 days
1956
36 days
1957
4 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.
Frost Dates and Growing Season
32 years with a frost
Across 32 years with a frost, the median last spring frost at Marmarth falls on 17 May and the median first autumn frost on 16 September, which leaves a median of 121 days between them.
Fitted over all years, the growing season changes by +0.9 days per decade at this station.
Frost dates and growing season at Marmarth
Measure
Median, all years
Earliest period
Recent period (1916 to 1955)
Recent against earliest
Fitted trend
Last spring frost
17 May
n/a
16 May
n/a
-2.4 days per decade
First autumn frost
16 September
n/a
16 September
n/a
-1.5 days per decade
Growing days
121 days
n/a
122 days
n/a
+0.9 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
42 years, 1909 to 1955
A day with at least 35.1 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 85.6 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Marmarth: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
35.1 mm (1.4 in)
5 years
47.0 mm (1.9 in)
10 years
55.5 mm (2.2 in)
25 years
67.0 mm (2.6 in)
50 years
76.0 mm (3.0 in)
Longer than the 42 years of record
100 years
85.6 mm (3.4 in)
Longer than the 42 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, 42 years of values from 1909 to 1955.
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: 90.2 mm (3.6 in) in 1915; 68.1 mm (2.7 in) in 1918; 67.3 mm (2.6 in) in 1933.
Download the Data
Data for Marmarth standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Marmarth 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.