Record envelope, standing records and threshold days for Beulah 1 W (USC00320766), North Dakota, United States, with 92 years of record.
Key Facts for Beulah 1 W
Beulah 1 W (USC00320766) is a weather station in North Dakota, United States at 47.26 latitude and -101.79 longitude, 544 m (1,785 ft) above sea level.
The station reports from 1916 to 2007, 92 years of record.
1,464 records set at Beulah 1 W still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Beulah 1 W set a daily record low minimum temperature of -19.4 C (-2.9 F) on 4 April 2007.
About the Station
Location: North Dakota, United States, 47.26 latitude, -101.79 longitude.
Elevation: 544 m (1,785 ft).
Period of record: 1916 to 2007, 92 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
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 Beulah 1 W. 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 Beulah 1 W, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-41.1 C (-42.0 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-41.1 C (-42.0 F)
n/a
n/a
Mar
27.2 C (81.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Apr
36.1 C (97.0 F)
-23.9 C (-11.0 F)
n/a
n/a
May
37.2 C (99.0 F)
-11.7 C (10.9 F)
n/a
n/a
Jun
40.6 C (105.1 F)
-2.8 C (27.0 F)
n/a
n/a
Jul
42.8 C (109.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
41.1 C (106.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
42.2 C (108.0 F)
-10.6 C (12.9 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-24.4 C (-11.9 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-43.3 C (-45.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Beulah 1 W still stand. 1988 holds the most, with 54.
Standing records at Beulah 1 W by the year they were set
Year set
Standing records
1954
6
1955
38
1956
34
1957
28
1958
27
1959
32
1960
19
1961
22
1962
34
1963
42
1964
21
1965
36
1966
28
1967
20
1968
31
1969
25
1970
14
1971
16
1972
34
1973
17
1974
22
1975
17
1976
20
1977
29
1978
22
1979
20
1980
19
1981
21
1982
30
1983
30
1984
18
1985
34
1986
31
1987
38
1988
54
1989
44
1990
36
1991
36
1992
42
1993
22
1994
26
1995
24
1996
24
1997
32
1998
20
1999
16
2000
26
2001
25
2002
35
2003
33
2004
31
2005
28
2006
23
2007
12
All-Time Record Progression
4 new records
4 all-time records were set at Beulah 1 W between 19 June 1986 and 15 July 2002. Each dot is a new record.
When Beulah 1 W set new all-time records
Date
Kind
Detail
1986-06-19
Record high minimum temperature
Record high minimum temperature 23.9 C (75.0 F)
1989-08-02
Record high minimum temperature
Record high minimum temperature 25.0 C (77.0 F)
1991-10-28
Record daily snowfall
Record daily snowfall 38.1 cm (15.0 in)
2002-07-15
Record high maximum temperature
Record high maximum temperature 42.8 C (109.0 F)
Wettest Day of Each Month
Jul: 106.2 mm (4.2 in)
The wettest day on record for each calendar month at Beulah 1 W. The most was 106.2 mm (4.2 in) on 18 July 1969.
Record daily precipitation for each month at Beulah 1 W
Month
Record daily precipitation (mm)
Date
Jan
20.8 mm (0.8 in)
5 January 1949
Feb
59.9 mm (2.4 in)
25 February 1998
Mar
31.2 mm (1.2 in)
24 March 1996
Apr
53.3 mm (2.1 in)
6 April 1997
May
103.6 mm (4.1 in)
12 May 1985
Jun
105.9 mm (4.2 in)
6 June 1941
Jul
106.2 mm (4.2 in)
18 July 1969
Aug
80.5 mm (3.2 in)
12 August 1999
Sep
59.7 mm (2.4 in)
15 September 1994
Oct
44.5 mm (1.8 in)
18 October 1994
Nov
28.2 mm (1.1 in)
14 November 1944
Dec
25.4 mm (1.0 in)
29 December 2006
Period of Record Coverage
1954 to 2007
Complete yearUnder 90 percent of days
54 years of record at Beulah 1 W, 1954 to 2007. 9 years have data for under 90 percent of days and are left out of rankings: 1954, 1962, 1964, 1985, 1992, 1993, 1994, 1995 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 47 complete years at Beulah 1 W, 1955 to 2006. Blue stripes are years cooler than the station's own mean of 5.4 C (41.7 F); red stripes are warmer. The coolest year was 1982, at 2.0 C (35.5 F), and the warmest was 1987, at 8.4 C (47.2 F). The strongest colour marks a difference of 3.5 C (6.3 F).
Annual mean temperature at Beulah 1 W as warming stripes, 1955 to 2006
Year
Annual mean temperature
Difference from the station mean
1955
2.7 C
-2.74 C
1956
3.4 C
-1.99 C
1957
4.8 C
-0.61 C
1958
5.1 C
-0.32 C
1959
5.2 C
-0.23 C
1960
5.8 C
+0.38 C
1961
6.8 C
+1.42 C
1963
6.9 C
+1.46 C
1965
4.2 C
-1.18 C
1966
4.2 C
-1.17 C
1967
4.2 C
-1.26 C
1968
4.0 C
-1.40 C
1969
4.1 C
-1.35 C
1970
3.8 C
-1.64 C
1971
4.3 C
-1.10 C
1972
3.6 C
-1.82 C
1973
5.5 C
+0.07 C
1974
5.1 C
-0.36 C
1975
4.6 C
-0.83 C
1976
5.8 C
+0.37 C
1977
5.7 C
+0.32 C
1978
4.0 C
-1.39 C
1979
3.4 C
-2.00 C
1980
5.5 C
+0.04 C
1981
6.0 C
+0.57 C
1982
2.0 C
-3.45 C
1984
4.8 C
-0.65 C
1987
8.4 C
+3.01 C
1988
7.2 C
+1.77 C
1989
5.4 C
-0.06 C
1990
7.3 C
+1.88 C
1991
7.1 C
+1.71 C
1992
6.6 C
+1.23 C
1993
4.7 C
-0.68 C
1994
5.7 C
+0.32 C
1995
5.4 C
-0.04 C
1996
3.7 C
-1.76 C
1997
6.1 C
+0.70 C
1998
7.4 C
+1.96 C
1999
7.1 C
+1.67 C
2000
6.2 C
+0.75 C
2001
6.8 C
+1.38 C
2002
6.2 C
+0.81 C
2003
6.1 C
+0.70 C
2004
6.4 C
+0.99 C
2005
7.2 C
+1.77 C
2006
8.2 C
+2.78 C
The annual mean temperature here has risen by 0.5 C (0.3 to 0.7) per decade over 1955 to 2006. In Fahrenheit: 0.9 F (0.5 to 1.3) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Beulah 1 W
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.5 C (0.3 to 0.7) per decade
0.9 F (0.5 to 1.3) per decade
1955 to 2006
47
Rise
Mean daily maximum
0.5 C (0.3 to 0.8) per decade
1.0 F (0.5 to 1.5) per decade
1955 to 2006
47
Rise
Mean daily minimum
0.5 C (0.3 to 0.7) per decade
0.8 F (0.5 to 1.2) per decade
1955 to 2006
47
Rise
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
1916 to 2007
Yearly extremes at Beulah 1 W: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
2002
38.9 C (102.0 F)
54
Coldest night (TNn)
-43.3 C (-45.9 F)
1983
-35.3 C (-31.5 F)
54
Wettest day (Rx1day)
106.2 mm (4.2 in)
1969
40.6 mm (1.6 in)
68
Wettest five days (Rx5day)
141.4 mm (5.6 in)
1941
63.5 mm (2.5 in)
68
Longest dry spell (CDD)
94 days
1987
37 days
68
Hottest day (TXx)
The hottest day of the year at Beulah 1 W, 1916 to 2007. The record is 42.8 C (109.0 F) in 2002, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Beulah 1 W by year
Year
Hottest day (TXx)
1916
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
1952
n/a
1953
n/a
1954
38.9 C (102.0 F)
1955
36.7 C (98.1 F)
1956
36.7 C (98.1 F)
1957
38.3 C (100.9 F)
1958
40.6 C (105.1 F)
1959
40.6 C (105.1 F)
1960
42.2 C (108.0 F)
1961
39.4 C (102.9 F)
1962
35.6 C (96.1 F)
1963
36.7 C (98.1 F)
1964
40.0 C (104.0 F)
1965
38.3 C (100.9 F)
1966
37.2 C (99.0 F)
1967
37.8 C (100.0 F)
1968
37.2 C (99.0 F)
1969
37.2 C (99.0 F)
1970
37.8 C (100.0 F)
1971
39.4 C (102.9 F)
1972
37.2 C (99.0 F)
1973
39.4 C (102.9 F)
1974
38.9 C (102.0 F)
1975
40.6 C (105.1 F)
1976
40.6 C (105.1 F)
1977
40.6 C (105.1 F)
1978
42.2 C (108.0 F)
1979
40.0 C (104.0 F)
1980
41.1 C (106.0 F)
1981
40.0 C (104.0 F)
1982
35.6 C (96.1 F)
1983
39.4 C (102.9 F)
1984
39.4 C (102.9 F)
1985
37.8 C (100.0 F)
1986
35.0 C (95.0 F)
1987
36.7 C (98.1 F)
1988
41.7 C (107.1 F)
1989
40.6 C (105.1 F)
1990
37.2 C (99.0 F)
1991
40.6 C (105.1 F)
1992
38.3 C (100.9 F)
1993
33.9 C (93.0 F)
1994
38.3 C (100.9 F)
1995
36.7 C (98.1 F)
1996
39.4 C (102.9 F)
1997
37.8 C (100.0 F)
1998
37.8 C (100.0 F)
1999
40.6 C (105.1 F)
2000
40.0 C (104.0 F)
2001
40.6 C (105.1 F)
2002
42.8 C (109.0 F)
2003
41.1 C (106.0 F)
2004
38.9 C (102.0 F)
2005
38.3 C (100.9 F)
2006
42.2 C (108.0 F)
2007
27.2 C (81.0 F)
Coldest night (TNn)
The coldest night of the year at Beulah 1 W, 1916 to 2007. The record is -43.3 C (-45.9 F) in 1983, marked on the chart; the median year is -35.3 C (-31.5 F).
Coldest night (TNn) at Beulah 1 W by year
Year
Coldest night (TNn)
1916
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
1952
n/a
1953
n/a
1954
-22.8 C (-9.0 F)
1955
-36.7 C (-34.1 F)
1956
-33.3 C (-27.9 F)
1957
-40.0 C (-40.0 F)
1958
-33.9 C (-29.0 F)
1959
-41.1 C (-42.0 F)
1960
-30.6 C (-23.1 F)
1961
-31.1 C (-24.0 F)
1962
-39.4 C (-38.9 F)
1963
-35.0 C (-31.0 F)
1964
-32.8 C (-27.0 F)
1965
-38.9 C (-38.0 F)
1966
-41.1 C (-42.0 F)
1967
-40.6 C (-41.1 F)
1968
-41.1 C (-42.0 F)
1969
-33.9 C (-29.0 F)
1970
-39.4 C (-38.9 F)
1971
-35.6 C (-32.1 F)
1972
-35.6 C (-32.1 F)
1973
-33.9 C (-29.0 F)
1974
-37.2 C (-35.0 F)
1975
-30.6 C (-23.1 F)
1976
-32.8 C (-27.0 F)
1977
-36.7 C (-34.1 F)
1978
-36.1 C (-33.0 F)
1979
-39.4 C (-38.9 F)
1980
-32.8 C (-27.0 F)
1981
-30.0 C (-22.0 F)
1982
-36.7 C (-34.1 F)
1983
-43.3 C (-45.9 F)
1984
-35.6 C (-32.1 F)
1985
-35.0 C (-31.0 F)
1986
-35.0 C (-31.0 F)
1987
-22.8 C (-9.0 F)
1988
-37.8 C (-36.0 F)
1989
-42.2 C (-44.0 F)
1990
-37.8 C (-36.0 F)
1991
-30.0 C (-22.0 F)
1992
-33.3 C (-27.9 F)
1993
-35.0 C (-31.0 F)
1994
-41.1 C (-42.0 F)
1995
-32.2 C (-26.0 F)
1996
-40.6 C (-41.1 F)
1997
-36.7 C (-34.1 F)
1998
-35.6 C (-32.1 F)
1999
-34.4 C (-29.9 F)
2000
-34.4 C (-29.9 F)
2001
-34.4 C (-29.9 F)
2002
-32.8 C (-27.0 F)
2003
-32.8 C (-27.0 F)
2004
-37.8 C (-36.0 F)
2005
-37.8 C (-36.0 F)
2006
-30.6 C (-23.1 F)
2007
-31.1 C (-24.0 F)
Wettest day (Rx1day)
The wettest day of the year at Beulah 1 W, 1916 to 2007. The record is 106.2 mm (4.2 in) in 1969, marked on the chart; the median year is 40.6 mm (1.6 in).
Wettest day (Rx1day) at Beulah 1 W by year
Year
Wettest day (Rx1day)
1916
62.0 mm (2.4 in)
1941
105.9 mm (4.2 in)
1942
60.5 mm (2.4 in)
1943
63.0 mm (2.5 in)
1944
60.2 mm (2.4 in)
1945
24.1 mm (0.9 in)
1946
34.5 mm (1.4 in)
1947
36.6 mm (1.4 in)
1948
56.1 mm (2.2 in)
1949
41.9 mm (1.6 in)
1950
21.6 mm (0.9 in)
1951
43.9 mm (1.7 in)
1952
40.6 mm (1.6 in)
1953
46.0 mm (1.8 in)
1954
29.2 mm (1.1 in)
1955
48.5 mm (1.9 in)
1956
38.6 mm (1.5 in)
1957
82.8 mm (3.3 in)
1958
37.3 mm (1.5 in)
1959
31.5 mm (1.2 in)
1960
70.1 mm (2.8 in)
1961
26.2 mm (1.0 in)
1962
51.8 mm (2.0 in)
1963
36.8 mm (1.4 in)
1964
45.2 mm (1.8 in)
1965
40.6 mm (1.6 in)
1966
55.4 mm (2.2 in)
1967
33.5 mm (1.3 in)
1968
75.7 mm (3.0 in)
1969
106.2 mm (4.2 in)
1970
61.0 mm (2.4 in)
1971
38.4 mm (1.5 in)
1972
48.3 mm (1.9 in)
1973
27.2 mm (1.1 in)
1974
31.0 mm (1.2 in)
1975
27.2 mm (1.1 in)
1976
38.6 mm (1.5 in)
1977
45.7 mm (1.8 in)
1978
31.0 mm (1.2 in)
1979
31.2 mm (1.2 in)
1980
41.7 mm (1.6 in)
1981
28.7 mm (1.1 in)
1982
38.9 mm (1.5 in)
1983
20.3 mm (0.8 in)
1984
45.7 mm (1.8 in)
1985
103.6 mm (4.1 in)
1986
31.2 mm (1.2 in)
1987
33.5 mm (1.3 in)
1988
44.7 mm (1.8 in)
1989
39.4 mm (1.6 in)
1990
50.8 mm (2.0 in)
1991
32.3 mm (1.3 in)
1992
26.2 mm (1.0 in)
1993
35.6 mm (1.4 in)
1994
59.7 mm (2.4 in)
1995
34.3 mm (1.4 in)
1996
31.2 mm (1.2 in)
1997
53.3 mm (2.1 in)
1998
59.9 mm (2.4 in)
1999
80.5 mm (3.2 in)
2000
36.1 mm (1.4 in)
2001
34.3 mm (1.4 in)
2002
61.0 mm (2.4 in)
2003
40.6 mm (1.6 in)
2004
30.7 mm (1.2 in)
2005
43.7 mm (1.7 in)
2006
46.2 mm (1.8 in)
2007
22.9 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Beulah 1 W, 1916 to 2007. The record is 141.4 mm (5.6 in) in 1941, marked on the chart; the median year is 63.5 mm (2.5 in).
Wettest five days (Rx5day) at Beulah 1 W by year
Year
Wettest five days (Rx5day)
1916
18.0 mm (0.7 in)
1941
141.4 mm (5.6 in)
1942
82.1 mm (3.2 in)
1943
89.1 mm (3.5 in)
1944
65.5 mm (2.6 in)
1945
29.7 mm (1.2 in)
1946
69.9 mm (2.8 in)
1947
134.4 mm (5.3 in)
1948
56.1 mm (2.2 in)
1949
55.3 mm (2.2 in)
1950
34.8 mm (1.4 in)
1951
81.2 mm (3.2 in)
1952
49.0 mm (1.9 in)
1953
54.6 mm (2.1 in)
1954
56.4 mm (2.2 in)
1955
48.8 mm (1.9 in)
1956
50.3 mm (2.0 in)
1957
85.8 mm (3.4 in)
1958
89.6 mm (3.5 in)
1959
53.4 mm (2.1 in)
1960
99.1 mm (3.9 in)
1961
44.8 mm (1.8 in)
1962
73.2 mm (2.9 in)
1963
73.9 mm (2.9 in)
1964
89.8 mm (3.5 in)
1965
62.9 mm (2.5 in)
1966
74.7 mm (2.9 in)
1967
86.2 mm (3.4 in)
1968
84.1 mm (3.3 in)
1969
133.1 mm (5.2 in)
1970
111.3 mm (4.4 in)
1971
52.9 mm (2.1 in)
1972
50.6 mm (2.0 in)
1973
41.6 mm (1.6 in)
1974
39.9 mm (1.6 in)
1975
64.0 mm (2.5 in)
1976
49.6 mm (2.0 in)
1977
68.6 mm (2.7 in)
1978
37.5 mm (1.5 in)
1979
46.2 mm (1.8 in)
1980
58.7 mm (2.3 in)
1981
57.4 mm (2.3 in)
1982
88.4 mm (3.5 in)
1983
44.6 mm (1.8 in)
1984
78.7 mm (3.1 in)
1985
106.7 mm (4.2 in)
1986
56.6 mm (2.2 in)
1987
66.8 mm (2.6 in)
1988
44.7 mm (1.8 in)
1989
57.5 mm (2.3 in)
1990
50.8 mm (2.0 in)
1991
47.5 mm (1.9 in)
1992
54.9 mm (2.2 in)
1993
80.6 mm (3.2 in)
1994
70.9 mm (2.8 in)
1995
71.4 mm (2.8 in)
1996
39.6 mm (1.6 in)
1997
99.8 mm (3.9 in)
1998
83.2 mm (3.3 in)
1999
94.5 mm (3.7 in)
2000
64.0 mm (2.5 in)
2001
81.5 mm (3.2 in)
2002
75.2 mm (3.0 in)
2003
62.2 mm (2.4 in)
2004
34.3 mm (1.4 in)
2005
73.2 mm (2.9 in)
2006
46.2 mm (1.8 in)
2007
24.2 mm (1.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Beulah 1 W, 1916 to 2007. The record is 94 days in 1987, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at Beulah 1 W by year
Year
Longest dry spell (CDD)
1916
16 days
1941
57 days
1942
43 days
1943
34 days
1944
34 days
1945
30 days
1946
37 days
1947
29 days
1948
33 days
1949
33 days
1950
23 days
1951
27 days
1952
45 days
1953
34 days
1954
62 days
1955
53 days
1956
35 days
1957
46 days
1958
32 days
1959
28 days
1960
65 days
1961
72 days
1962
46 days
1963
46 days
1964
43 days
1965
43 days
1966
37 days
1967
35 days
1968
25 days
1969
52 days
1970
34 days
1971
37 days
1972
27 days
1973
26 days
1974
39 days
1975
28 days
1976
30 days
1977
27 days
1978
29 days
1979
37 days
1980
43 days
1981
58 days
1982
25 days
1983
28 days
1984
36 days
1985
27 days
1986
44 days
1987
94 days
1988
64 days
1989
54 days
1990
45 days
1991
37 days
1992
28 days
1993
36 days
1994
42 days
1995
30 days
1996
27 days
1997
35 days
1998
46 days
1999
74 days
2000
46 days
2001
41 days
2002
41 days
2003
37 days
2004
27 days
2005
45 days
2006
59 days
2007
24 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
47 years with a frost
Across 47 years with a frost, the median last spring frost at Beulah 1 W falls on 20 May and the median first autumn frost on 16 September, which leaves a median of 120 days between them.
Fitted over all years, the growing season changes by -1.3 days per decade at this station.
Frost dates and growing season at Beulah 1 W
Measure
Median, all years
Earliest period
Recent period (1974 to 2006)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
18 May
n/a
+0.8 days per decade
First autumn frost
16 September
n/a
18 September
n/a
-0.6 days per decade
Growing days
120 days
n/a
121 days
n/a
-1.3 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
63 years, 1944 to 2006
A day with at least 39.6 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 112.9 mm (4.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Beulah 1 W: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
39.6 mm (1.6 in)
5 years
54.0 mm (2.1 in)
10 years
65.4 mm (2.6 in)
25 years
82.1 mm (3.2 in)
50 years
96.5 mm (3.8 in)
100 years
112.9 mm (4.4 in)
Longer than the 63 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, 63 years of values from 1944 to 2006.
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: 106.2 mm (4.2 in) in 1969; 103.6 mm (4.1 in) in 1985; 82.8 mm (3.3 in) in 1957.
Station Changes
2 suspected
2 changes were suspected in the annual mean temperature of Beulah 1 W, at 1979 and 1987. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1979 ran 0.8 C (1.5 F) lower than in the years before (possible change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 1.2 C (2.1 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Beulah 1 W, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1979
-0.8
-1.5
possible
5
1987
+1.2
+2.1
possible
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Beulah 1 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Beulah 1 W 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.