Record envelope, standing records and threshold days for Belfield 1 SW (USC00320639), North Dakota, United States, with 31 years of record.
Key Facts for Belfield 1 SW
Belfield 1 SW (USC00320639) is a weather station in North Dakota, United States at 46.88 latitude and -103.18 longitude, 793 m (2,602 ft) above sea level.
The station reports from 1948 to 1978, 31 years of record.
1,464 records set at Belfield 1 SW still stand.
Records are tracked for tmax, prcp: an element needs 30 years of data to be eligible.
Belfield 1 SW set a daily record precipitation of 3.3 mm (0.13 in) on 30 January 1978.
About the Station
Location: North Dakota, United States, 46.88 latitude, -103.18 longitude.
Elevation: 793 m (2,602 ft).
Period of record: 1948 to 1978, 31 years.
Eligible elements: tmax, 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 Belfield 1 SW. 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 Belfield 1 SW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
14.4 C (57.9 F)
-40.6 C (-41.1 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-40.0 C (-40.0 F)
n/a
n/a
Mar
23.3 C (73.9 F)
-32.2 C (-26.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-27.2 C (-17.0 F)
n/a
n/a
May
36.1 C (97.0 F)
-13.3 C (8.1 F)
n/a
n/a
Jun
37.8 C (100.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
39.4 C (102.9 F)
0.6 C (33.1 F)
n/a
n/a
Aug
42.2 C (108.0 F)
-0.6 C (30.9 F)
n/a
n/a
Sep
39.4 C (102.9 F)
-9.4 C (15.1 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-15.6 C (3.9 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-29.4 C (-20.9 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-37.2 C (-35.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Belfield 1 SW still stand. 1963 holds the most, with 78.
Standing records at Belfield 1 SW by the year they were set
Year set
Standing records
1948
24
1949
73
1950
72
1951
69
1952
51
1953
41
1954
61
1955
51
1956
33
1957
40
1958
44
1959
47
1960
38
1961
48
1962
54
1963
78
1964
55
1965
52
1966
59
1967
31
1968
46
1969
35
1970
36
1971
41
1972
63
1973
42
1974
43
1975
39
1976
45
1977
51
1978
2
Wettest Day of Each Month
Sep: 74.4 mm (2.9 in)
The wettest day on record for each calendar month at Belfield 1 SW. The most was 74.4 mm (2.9 in) on 5 September 1971.
Record daily precipitation for each month at Belfield 1 SW
Month
Record daily precipitation (mm)
Date
Jan
12.2 mm (0.5 in)
23 January 1950
Feb
19.8 mm (0.8 in)
26 February 1958
Mar
31.5 mm (1.2 in)
12 March 1954
Apr
47.8 mm (1.9 in)
16 April 1967
May
48.5 mm (1.9 in)
8 May 1970
Jun
68.3 mm (2.7 in)
8 June 1964
Jul
60.2 mm (2.4 in)
2 July 1966
Aug
67.1 mm (2.6 in)
23 August 1968
Sep
74.4 mm (2.9 in)
5 September 1971
Oct
45.7 mm (1.8 in)
2 October 1971
Nov
15.7 mm (0.6 in)
14 November 1964
Dec
13.5 mm (0.5 in)
12 December 1968
Period of Record Coverage
1948 to 1978
Complete yearUnder 90 percent of days
31 years of record at Belfield 1 SW, 1948 to 1978. 3 years have data for under 90 percent of days and are left out of rankings: 1948, 1965, 1978.
Cooler than the station meanWarmer than the station mean
One stripe for each of 25 complete years at Belfield 1 SW, 1949 to 1977. Blue stripes are years cooler than the station's own mean of 5.3 C (41.5 F); red stripes are warmer. The coolest year was 1950, at 3.0 C (37.4 F), and the warmest was 1963, at 7.0 C (44.5 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Belfield 1 SW as warming stripes, 1949 to 1977
Year
Annual mean temperature
Difference from the station mean
1949
4.8 C
-0.49 C
1950
3.0 C
-2.29 C
1951
3.2 C
-2.10 C
1952
5.8 C
+0.53 C
1953
6.6 C
+1.34 C
1954
5.8 C
+0.57 C
1955
4.6 C
-0.63 C
1956
5.3 C
+0.03 C
1957
5.2 C
-0.04 C
1958
5.9 C
+0.64 C
1959
5.3 C
+0.00 C
1961
6.4 C
+1.11 C
1962
5.9 C
+0.63 C
1963
7.0 C
+1.68 C
1964
5.8 C
+0.53 C
1966
4.9 C
-0.36 C
1967
5.5 C
+0.25 C
1970
4.4 C
-0.89 C
1971
4.5 C
-0.77 C
1972
3.7 C
-1.62 C
1973
5.8 C
+0.53 C
1974
5.7 C
+0.39 C
1975
4.7 C
-0.53 C
1976
6.3 C
+1.03 C
1977
5.7 C
+0.40 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1948 to 1978
Yearly extremes at Belfield 1 SW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.2 C (108.0 F)
1949
37.2 C (99.0 F)
31
Coldest night (TNn)
-40.6 C (-41.1 F)
1949
-35.0 C (-31.0 F)
31
Wettest day (Rx1day)
74.4 mm (2.9 in)
1971
39.1 mm (1.5 in)
31
Wettest five days (Rx5day)
138.1 mm (5.4 in)
1964
66.0 mm (2.6 in)
31
Longest dry spell (CDD)
58 days
1960
29 days
31
Hottest day (TXx)
The hottest day of the year at Belfield 1 SW, 1948 to 1978. The record is 42.2 C (108.0 F) in 1949, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Belfield 1 SW by year
Year
Hottest day (TXx)
1948
39.4 C (102.9 F)
1949
42.2 C (108.0 F)
1950
35.6 C (96.1 F)
1951
37.2 C (99.0 F)
1952
37.8 C (100.0 F)
1953
34.4 C (93.9 F)
1954
36.7 C (98.1 F)
1955
37.8 C (100.0 F)
1956
36.7 C (98.1 F)
1957
37.2 C (99.0 F)
1958
38.3 C (100.9 F)
1959
37.8 C (100.0 F)
1960
37.2 C (99.0 F)
1961
36.1 C (97.0 F)
1962
35.0 C (95.0 F)
1963
36.1 C (97.0 F)
1964
36.7 C (98.1 F)
1965
36.1 C (97.0 F)
1966
35.6 C (96.1 F)
1967
37.2 C (99.0 F)
1968
36.7 C (98.1 F)
1969
36.7 C (98.1 F)
1970
36.7 C (98.1 F)
1971
38.9 C (102.0 F)
1972
37.2 C (99.0 F)
1973
40.0 C (104.0 F)
1974
37.8 C (100.0 F)
1975
39.4 C (102.9 F)
1976
39.4 C (102.9 F)
1977
38.3 C (100.9 F)
1978
-1.1 C (30.0 F)
Coldest night (TNn)
The coldest night of the year at Belfield 1 SW, 1948 to 1978. The record is -40.6 C (-41.1 F) in 1949, marked on the chart; the median year is -35.0 C (-31.0 F).
Coldest night (TNn) at Belfield 1 SW by year
Year
Coldest night (TNn)
1948
-27.8 C (-18.0 F)
1949
-40.6 C (-41.1 F)
1950
-37.8 C (-36.0 F)
1951
-37.2 C (-35.0 F)
1952
-33.3 C (-27.9 F)
1953
-31.7 C (-25.1 F)
1954
-38.3 C (-36.9 F)
1955
-33.9 C (-29.0 F)
1956
-34.4 C (-29.9 F)
1957
-35.0 C (-31.0 F)
1958
-30.0 C (-22.0 F)
1959
-36.7 C (-34.1 F)
1960
-30.0 C (-22.0 F)
1961
-31.1 C (-24.0 F)
1962
-40.0 C (-40.0 F)
1963
-35.0 C (-31.0 F)
1964
-33.3 C (-27.9 F)
1965
-27.8 C (-18.0 F)
1966
-38.9 C (-38.0 F)
1967
-32.2 C (-26.0 F)
1968
-33.9 C (-29.0 F)
1969
-32.2 C (-26.0 F)
1970
-38.3 C (-36.9 F)
1971
-32.8 C (-27.0 F)
1972
-36.7 C (-34.1 F)
1973
-35.6 C (-32.1 F)
1974
-37.2 C (-35.0 F)
1975
-30.6 C (-23.1 F)
1976
-35.0 C (-31.0 F)
1977
-37.2 C (-35.0 F)
1978
-35.6 C (-32.1 F)
Wettest day (Rx1day)
The wettest day of the year at Belfield 1 SW, 1948 to 1978. The record is 74.4 mm (2.9 in) in 1971, marked on the chart; the median year is 39.1 mm (1.5 in).
Wettest day (Rx1day) at Belfield 1 SW by year
Year
Wettest day (Rx1day)
1948
33.5 mm (1.3 in)
1949
31.8 mm (1.3 in)
1950
29.2 mm (1.1 in)
1951
29.0 mm (1.1 in)
1952
24.4 mm (1.0 in)
1953
48.8 mm (1.9 in)
1954
49.3 mm (1.9 in)
1955
59.4 mm (2.3 in)
1956
39.4 mm (1.6 in)
1957
50.3 mm (2.0 in)
1958
45.2 mm (1.8 in)
1959
29.0 mm (1.1 in)
1960
42.9 mm (1.7 in)
1961
36.3 mm (1.4 in)
1962
34.8 mm (1.4 in)
1963
27.7 mm (1.1 in)
1964
68.3 mm (2.7 in)
1965
39.1 mm (1.5 in)
1966
60.2 mm (2.4 in)
1967
47.8 mm (1.9 in)
1968
67.1 mm (2.6 in)
1969
56.4 mm (2.2 in)
1970
48.5 mm (1.9 in)
1971
74.4 mm (2.9 in)
1972
49.3 mm (1.9 in)
1973
27.9 mm (1.1 in)
1974
38.6 mm (1.5 in)
1975
33.0 mm (1.3 in)
1976
29.2 mm (1.1 in)
1977
33.0 mm (1.3 in)
1978
3.3 mm (0.13 in)
Wettest five days (Rx5day)
The wettest five days of the year at Belfield 1 SW, 1948 to 1978. The record is 138.1 mm (5.4 in) in 1964, marked on the chart; the median year is 66.0 mm (2.6 in).
Wettest five days (Rx5day) at Belfield 1 SW by year
Year
Wettest five days (Rx5day)
1948
78.4 mm (3.1 in)
1949
48.5 mm (1.9 in)
1950
50.8 mm (2.0 in)
1951
45.2 mm (1.8 in)
1952
53.1 mm (2.1 in)
1953
75.2 mm (3.0 in)
1954
60.2 mm (2.4 in)
1955
76.1 mm (3.0 in)
1956
65.0 mm (2.6 in)
1957
100.5 mm (4.0 in)
1958
72.9 mm (2.9 in)
1959
44.9 mm (1.8 in)
1960
58.2 mm (2.3 in)
1961
80.5 mm (3.2 in)
1962
58.4 mm (2.3 in)
1963
63.1 mm (2.5 in)
1964
138.1 mm (5.4 in)
1965
79.5 mm (3.1 in)
1966
65.7 mm (2.6 in)
1967
72.6 mm (2.9 in)
1968
84.8 mm (3.3 in)
1969
96.4 mm (3.8 in)
1970
101.5 mm (4.0 in)
1971
82.0 mm (3.2 in)
1972
83.8 mm (3.3 in)
1973
48.2 mm (1.9 in)
1974
46.7 mm (1.8 in)
1975
66.0 mm (2.6 in)
1976
52.5 mm (2.1 in)
1977
71.7 mm (2.8 in)
1978
4.1 mm (0.16 in)
Longest dry spell (CDD)
The longest dry spell of the year at Belfield 1 SW, 1948 to 1978. The record is 58 days in 1960, marked on the chart; the median year is 29 days.
Longest dry spell (CDD) at Belfield 1 SW by year
Year
Longest dry spell (CDD)
1948
29 days
1949
40 days
1950
19 days
1951
28 days
1952
54 days
1953
26 days
1954
28 days
1955
27 days
1956
21 days
1957
24 days
1958
36 days
1959
29 days
1960
58 days
1961
42 days
1962
31 days
1963
44 days
1964
28 days
1965
43 days
1966
34 days
1967
26 days
1968
21 days
1969
36 days
1970
34 days
1971
38 days
1972
26 days
1973
22 days
1974
31 days
1975
33 days
1976
29 days
1977
38 days
1978
12 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
25 years with a frost
Across 25 years with a frost, the median last spring frost at Belfield 1 SW falls on 20 May and the median first autumn frost on 18 September, which leaves a median of 121 days between them.
Fitted over all years, the growing season changes by +8.1 days per decade at this station.
Frost dates and growing season at Belfield 1 SW
Measure
Median, all years
Earliest period
Recent period (1949 to 1977)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
20 May
n/a
-4.9 days per decade
First autumn frost
18 September
n/a
18 September
n/a
+3.2 days per decade
Growing days
121 days
n/a
121 days
n/a
+8.1 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.
Download the Data
Data for Belfield 1 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Belfield 1 SW 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.