Record envelope, standing records and threshold days for Bentonville 4 S (USC00030586), Arkansas, United States, with 65 years of record.
Key Facts for Bentonville 4 S
Bentonville 4 S (USC00030586) is a weather station in Arkansas, United States at 36.32 latitude and -94.22 longitude, 372 m (1,220 ft) above sea level.
The station reports from 1943 to 2007, 65 years of record.
1,464 records set at Bentonville 4 S still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bentonville 4 S set a daily record low maximum temperature of -3.3 C (26.1 F) on 15 February 2007.
About the Station
Location: Arkansas, United States, 36.32 latitude, -94.22 longitude.
Elevation: 372 m (1,220 ft).
Period of record: 1943 to 2007, 65 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 Bentonville 4 S. 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 Bentonville 4 S, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
24.4 C (75.9 F)
-26.1 C (-15.0 F)
n/a
n/a
Feb
30.0 C (86.0 F)
-26.7 C (-16.1 F)
n/a
n/a
Mar
31.1 C (88.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Apr
35.6 C (96.1 F)
-8.9 C (16.0 F)
n/a
n/a
May
33.9 C (93.0 F)
-2.8 C (27.0 F)
n/a
n/a
Jun
39.4 C (102.9 F)
4.4 C (39.9 F)
n/a
n/a
Jul
45.6 C (114.1 F)
7.2 C (45.0 F)
n/a
n/a
Aug
41.7 C (107.1 F)
6.7 C (44.1 F)
n/a
n/a
Sep
41.1 C (106.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
29.4 C (84.9 F)
-15.0 C (5.0 F)
n/a
n/a
Dec
25.6 C (78.1 F)
-26.1 C (-15.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bentonville 4 S still stand. 1954 holds the most, with 56.
Standing records at Bentonville 4 S by the year they were set
Year set
Standing records
1943
35
1944
22
1945
17
1946
24
1947
28
1948
30
1949
15
1950
33
1951
22
1952
42
1953
45
1954
56
1955
23
1956
34
1957
16
1958
20
1959
19
1960
25
1961
26
1962
30
1963
29
1964
17
1965
21
1966
20
1967
29
1968
14
1969
10
1970
24
1971
23
1972
22
1973
4
1974
24
1975
17
1976
29
1977
14
1978
22
1979
34
1980
25
1981
15
1982
16
1983
34
1984
17
1985
24
1986
26
1987
18
1988
17
1989
53
1990
15
1991
17
1992
16
1993
20
1994
12
1995
15
1996
24
1997
15
1998
18
1999
13
2000
24
2001
13
2002
17
2003
19
2004
21
2005
16
2006
28
2007
1
All-Time Record Progression
11 new records
11 all-time records were set at Bentonville 4 S between 9 June 1974 and 14 March 1999. Each dot is a new record.
When Bentonville 4 S set new all-time records
Date
Kind
Detail
1974-06-09
Record daily precipitation
Record daily precipitation 119.9 mm (4.7 in)
1975-07-27
Record daily precipitation
Record daily precipitation 150.6 mm (5.9 in)
1977-01-10
Record low maximum temperature
Record low maximum temperature -13.9 C (7.0 F)
1977-01-10
Record low minimum temperature
Record low minimum temperature -26.1 C (-15.0 F)
1982-01-11
Record low maximum temperature
Record low maximum temperature -16.7 C (1.9 F)
1983-12-25
Record low maximum temperature
Record low maximum temperature -18.3 C (-0.9 F)
1989-03-06
Record snow depth
Record snow depth 27.9 cm (11.0 in)
1994-03-09
Record daily snowfall
Record daily snowfall 34.3 cm (13.5 in)
1994-03-09
Record snow depth
Record snow depth 35.6 cm (14.0 in)
1996-02-04
Record low minimum temperature
Record low minimum temperature -26.7 C (-16.1 F)
1999-03-14
Record daily snowfall
Record daily snowfall 35.6 cm (14.0 in)
Wettest Day of Each Month
Jul: 150.6 mm (5.9 in)
The wettest day on record for each calendar month at Bentonville 4 S. The most was 150.6 mm (5.9 in) on 27 July 1975.
Record daily precipitation for each month at Bentonville 4 S
Month
Record daily precipitation (mm)
Date
Jan
76.2 mm (3.0 in)
30 January 1969
Feb
66.5 mm (2.6 in)
18 February 1951
Mar
80.0 mm (3.1 in)
29 March 1988
Apr
90.9 mm (3.6 in)
3 April 1965
May
112.3 mm (4.4 in)
20 May 1961
Jun
119.9 mm (4.7 in)
9 June 1974
Jul
150.6 mm (5.9 in)
27 July 1975
Aug
110.5 mm (4.4 in)
5 August 1950
Sep
143.5 mm (5.6 in)
21 September 1990
Oct
92.2 mm (3.6 in)
3 October 1944
Nov
101.6 mm (4.0 in)
30 November 2006
Dec
97.8 mm (3.9 in)
21 December 1984
Period of Record Coverage
1943 to 2007
Complete yearUnder 90 percent of days
65 years of record at Bentonville 4 S, 1943 to 2007. 5 years have data for under 90 percent of days and are left out of rankings: 1943, 1950, 1951, 1974, 2007.
Cooler than the station meanWarmer than the station mean
One stripe for each of 55 complete years at Bentonville 4 S, 1945 to 2005. Blue stripes are years cooler than the station's own mean of 13.8 C (56.9 F); red stripes are warmer. The coolest year was 1979, at 12.0 C (53.5 F), and the warmest was 1965, at 15.3 C (59.6 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Bentonville 4 S as warming stripes, 1945 to 2005
Year
Annual mean temperature
Difference from the station mean
1945
13.6 C
-0.28 C
1946
15.3 C
+1.43 C
1948
13.3 C
-0.54 C
1949
14.1 C
+0.26 C
1952
14.5 C
+0.60 C
1953
14.9 C
+1.07 C
1954
15.0 C
+1.15 C
1955
14.4 C
+0.50 C
1956
14.5 C
+0.64 C
1957
14.1 C
+0.28 C
1958
13.3 C
-0.51 C
1959
13.9 C
+0.05 C
1961
13.4 C
-0.42 C
1962
14.1 C
+0.28 C
1963
14.7 C
+0.85 C
1964
15.1 C
+1.27 C
1965
15.3 C
+1.48 C
1966
13.9 C
+0.06 C
1967
14.4 C
+0.54 C
1968
13.4 C
-0.41 C
1969
14.0 C
+0.15 C
1970
13.8 C
-0.08 C
1971
14.3 C
+0.48 C
1972
14.0 C
+0.15 C
1973
14.2 C
+0.33 C
1975
13.2 C
-0.65 C
1976
12.4 C
-1.41 C
1977
13.9 C
+0.01 C
1978
12.8 C
-1.10 C
1979
12.0 C
-1.88 C
1980
13.8 C
-0.08 C
1981
13.2 C
-0.67 C
1982
12.7 C
-1.11 C
1983
12.6 C
-1.30 C
1984
13.6 C
-0.30 C
1986
14.3 C
+0.42 C
1987
13.8 C
-0.01 C
1988
13.1 C
-0.80 C
1989
12.4 C
-1.42 C
1990
14.2 C
+0.36 C
1991
14.2 C
+0.32 C
1992
13.4 C
-0.43 C
1993
12.6 C
-1.23 C
1994
13.7 C
-0.17 C
1995
13.5 C
-0.36 C
1996
13.1 C
-0.79 C
1997
13.0 C
-0.82 C
1998
15.3 C
+1.42 C
1999
14.8 C
+0.91 C
2000
14.0 C
+0.11 C
2001
14.3 C
+0.45 C
2002
13.7 C
-0.11 C
2003
13.8 C
-0.05 C
2004
14.2 C
+0.31 C
2005
14.8 C
+0.91 C
The fitted trend in annual mean temperature here over 1945 to 2005 is -0.11 C (-0.22 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.19 F (-0.40 to 0.02) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bentonville 4 S
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.11 C (-0.22 to 0.01) per decade
-0.19 F (-0.40 to 0.02) per decade
1945 to 2005
55
Not clearly different from zero
Mean daily maximum
-0.15 C (-0.31 to 0.00) per decade
-0.28 F (-0.56 to 0.00) per decade
1945 to 2005
55
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.2 to 0.1) per decade
-0.1 F (-0.3 to 0.1) per decade
1945 to 2005
55
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
1943 to 2007
Yearly extremes at Bentonville 4 S: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
45.6 C (114.1 F)
1954
37.2 C (99.0 F)
65
Coldest night (TNn)
-26.7 C (-16.1 F)
1996
-17.8 C (0.0 F)
65
Wettest day (Rx1day)
150.6 mm (5.9 in)
1975
73.9 mm (2.9 in)
65
Wettest five days (Rx5day)
243.4 mm (9.6 in)
1961
112.6 mm (4.4 in)
65
Longest dry spell (CDD)
43 days
2000
22 days
65
Hottest day (TXx)
The hottest day of the year at Bentonville 4 S, 1943 to 2007. The record is 45.6 C (114.1 F) in 1954, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Bentonville 4 S by year
Year
Hottest day (TXx)
1943
40.6 C (105.1 F)
1944
37.8 C (100.0 F)
1945
37.2 C (99.0 F)
1946
39.4 C (102.9 F)
1947
40.6 C (105.1 F)
1948
36.1 C (97.0 F)
1949
36.1 C (97.0 F)
1950
36.1 C (97.0 F)
1951
34.4 C (93.9 F)
1952
38.9 C (102.0 F)
1953
39.4 C (102.9 F)
1954
45.6 C (114.1 F)
1955
36.1 C (97.0 F)
1956
41.1 C (106.0 F)
1957
37.8 C (100.0 F)
1958
36.1 C (97.0 F)
1959
35.0 C (95.0 F)
1960
35.0 C (95.0 F)
1961
34.4 C (93.9 F)
1962
37.2 C (99.0 F)
1963
41.1 C (106.0 F)
1964
41.7 C (107.1 F)
1965
37.2 C (99.0 F)
1966
37.8 C (100.0 F)
1967
36.1 C (97.0 F)
1968
35.0 C (95.0 F)
1969
38.9 C (102.0 F)
1970
40.0 C (104.0 F)
1971
36.1 C (97.0 F)
1972
36.7 C (98.1 F)
1973
34.4 C (93.9 F)
1974
40.0 C (104.0 F)
1975
34.4 C (93.9 F)
1976
35.0 C (95.0 F)
1977
38.3 C (100.9 F)
1978
36.7 C (98.1 F)
1979
32.8 C (91.0 F)
1980
40.6 C (105.1 F)
1981
35.6 C (96.1 F)
1982
35.6 C (96.1 F)
1983
37.2 C (99.0 F)
1984
38.3 C (100.9 F)
1985
35.6 C (96.1 F)
1986
40.6 C (105.1 F)
1987
37.8 C (100.0 F)
1988
37.2 C (99.0 F)
1989
35.0 C (95.0 F)
1990
37.2 C (99.0 F)
1991
37.8 C (100.0 F)
1992
33.3 C (91.9 F)
1993
37.2 C (99.0 F)
1994
36.1 C (97.0 F)
1995
37.2 C (99.0 F)
1996
36.1 C (97.0 F)
1997
36.1 C (97.0 F)
1998
40.0 C (104.0 F)
1999
39.4 C (102.9 F)
2000
41.1 C (106.0 F)
2001
36.7 C (98.1 F)
2002
36.1 C (97.0 F)
2003
38.3 C (100.9 F)
2004
34.4 C (93.9 F)
2005
39.4 C (102.9 F)
2006
38.3 C (100.9 F)
2007
23.3 C (73.9 F)
Coldest night (TNn)
The coldest night of the year at Bentonville 4 S, 1943 to 2007. The record is -26.7 C (-16.1 F) in 1996, marked on the chart; the median year is -17.8 C (0.0 F).
Coldest night (TNn) at Bentonville 4 S by year
Year
Coldest night (TNn)
1943
-17.8 C (0.0 F)
1944
-16.7 C (1.9 F)
1945
-20.6 C (-5.1 F)
1946
-15.0 C (5.0 F)
1947
-19.4 C (-2.9 F)
1948
-24.4 C (-11.9 F)
1949
-17.2 C (1.0 F)
1950
-14.4 C (6.1 F)
1951
-18.3 C (-0.9 F)
1952
-12.2 C (10.0 F)
1953
-15.6 C (3.9 F)
1954
-18.3 C (-0.9 F)
1955
-16.7 C (1.9 F)
1956
-14.4 C (6.1 F)
1957
-15.0 C (5.0 F)
1958
-17.8 C (0.0 F)
1959
-20.0 C (-4.0 F)
1960
-16.7 C (1.9 F)
1961
-17.2 C (1.0 F)
1962
-20.6 C (-5.1 F)
1963
-21.7 C (-7.1 F)
1964
-17.8 C (0.0 F)
1965
-16.7 C (1.9 F)
1966
-20.0 C (-4.0 F)
1967
-13.3 C (8.1 F)
1968
-20.0 C (-4.0 F)
1969
-15.6 C (3.9 F)
1970
-23.3 C (-9.9 F)
1971
-22.8 C (-9.0 F)
1972
-19.4 C (-2.9 F)
1973
-19.4 C (-2.9 F)
1974
-17.8 C (0.0 F)
1975
-15.6 C (3.9 F)
1976
-19.4 C (-2.9 F)
1977
-26.1 C (-15.0 F)
1978
-19.4 C (-2.9 F)
1979
-22.2 C (-8.0 F)
1980
-16.7 C (1.9 F)
1981
-22.2 C (-8.0 F)
1982
-23.3 C (-9.9 F)
1983
-23.3 C (-9.9 F)
1984
-23.9 C (-11.0 F)
1985
-24.4 C (-11.9 F)
1986
-16.1 C (3.0 F)
1987
-11.7 C (10.9 F)
1988
-21.7 C (-7.1 F)
1989
-26.1 C (-15.0 F)
1990
-16.1 C (3.0 F)
1991
-16.1 C (3.0 F)
1992
-12.8 C (9.0 F)
1993
-18.9 C (-2.0 F)
1994
-13.3 C (8.1 F)
1995
-15.0 C (5.0 F)
1996
-26.7 C (-16.1 F)
1997
-20.6 C (-5.1 F)
1998
-13.9 C (7.0 F)
1999
-15.6 C (3.9 F)
2000
-16.7 C (1.9 F)
2001
-16.1 C (3.0 F)
2002
-20.0 C (-4.0 F)
2003
-16.1 C (3.0 F)
2004
-15.0 C (5.0 F)
2005
-16.1 C (3.0 F)
2006
-13.3 C (8.1 F)
2007
-12.8 C (9.0 F)
Wettest day (Rx1day)
The wettest day of the year at Bentonville 4 S, 1943 to 2007. The record is 150.6 mm (5.9 in) in 1975, marked on the chart; the median year is 73.9 mm (2.9 in).
Wettest day (Rx1day) at Bentonville 4 S by year
Year
Wettest day (Rx1day)
1943
55.4 mm (2.2 in)
1944
92.2 mm (3.6 in)
1945
86.4 mm (3.4 in)
1946
87.6 mm (3.4 in)
1947
64.0 mm (2.5 in)
1948
78.0 mm (3.1 in)
1949
75.2 mm (3.0 in)
1950
110.5 mm (4.4 in)
1951
81.3 mm (3.2 in)
1952
73.9 mm (2.9 in)
1953
35.3 mm (1.4 in)
1954
55.6 mm (2.2 in)
1955
52.8 mm (2.1 in)
1956
77.5 mm (3.1 in)
1957
69.6 mm (2.7 in)
1958
54.6 mm (2.1 in)
1959
78.0 mm (3.1 in)
1960
87.9 mm (3.5 in)
1961
112.3 mm (4.4 in)
1962
69.3 mm (2.7 in)
1963
49.0 mm (1.9 in)
1964
61.2 mm (2.4 in)
1965
90.9 mm (3.6 in)
1966
57.7 mm (2.3 in)
1967
62.2 mm (2.4 in)
1968
79.5 mm (3.1 in)
1969
78.0 mm (3.1 in)
1970
73.4 mm (2.9 in)
1971
65.0 mm (2.6 in)
1972
78.2 mm (3.1 in)
1973
73.7 mm (2.9 in)
1974
119.9 mm (4.7 in)
1975
150.6 mm (5.9 in)
1976
81.3 mm (3.2 in)
1977
91.4 mm (3.6 in)
1978
68.3 mm (2.7 in)
1979
73.7 mm (2.9 in)
1980
74.2 mm (2.9 in)
1981
53.3 mm (2.1 in)
1982
97.0 mm (3.8 in)
1983
49.5 mm (1.9 in)
1984
97.8 mm (3.9 in)
1985
95.3 mm (3.8 in)
1986
132.1 mm (5.2 in)
1987
68.6 mm (2.7 in)
1988
80.0 mm (3.1 in)
1989
56.6 mm (2.2 in)
1990
143.5 mm (5.6 in)
1991
63.2 mm (2.5 in)
1992
72.4 mm (2.9 in)
1993
104.1 mm (4.1 in)
1994
100.1 mm (3.9 in)
1995
53.6 mm (2.1 in)
1996
88.9 mm (3.5 in)
1997
53.1 mm (2.1 in)
1998
76.2 mm (3.0 in)
1999
57.9 mm (2.3 in)
2000
66.3 mm (2.6 in)
2001
65.8 mm (2.6 in)
2002
72.6 mm (2.9 in)
2003
49.0 mm (1.9 in)
2004
124.5 mm (4.9 in)
2005
54.1 mm (2.1 in)
2006
101.6 mm (4.0 in)
2007
52.3 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bentonville 4 S, 1943 to 2007. The record is 243.4 mm (9.6 in) in 1961, marked on the chart; the median year is 112.6 mm (4.4 in).
Wettest five days (Rx5day) at Bentonville 4 S by year
Year
Wettest five days (Rx5day)
1943
82.9 mm (3.3 in)
1944
111.0 mm (4.4 in)
1945
203.3 mm (8.0 in)
1946
140.0 mm (5.5 in)
1947
107.4 mm (4.2 in)
1948
139.8 mm (5.5 in)
1949
98.7 mm (3.9 in)
1950
202.5 mm (8.0 in)
1951
100.0 mm (3.9 in)
1952
99.8 mm (3.9 in)
1953
65.3 mm (2.6 in)
1954
118.3 mm (4.7 in)
1955
91.2 mm (3.6 in)
1956
131.9 mm (5.2 in)
1957
186.7 mm (7.4 in)
1958
92.9 mm (3.7 in)
1959
148.3 mm (5.8 in)
1960
147.3 mm (5.8 in)
1961
243.4 mm (9.6 in)
1962
92.5 mm (3.6 in)
1963
53.0 mm (2.1 in)
1964
113.2 mm (4.5 in)
1965
175.5 mm (6.9 in)
1966
81.3 mm (3.2 in)
1967
97.3 mm (3.8 in)
1968
140.5 mm (5.5 in)
1969
149.7 mm (5.9 in)
1970
114.0 mm (4.5 in)
1971
112.7 mm (4.4 in)
1972
108.4 mm (4.3 in)
1973
159.5 mm (6.3 in)
1974
213.4 mm (8.4 in)
1975
164.8 mm (6.5 in)
1976
111.7 mm (4.4 in)
1977
103.1 mm (4.1 in)
1978
125.0 mm (4.9 in)
1979
102.9 mm (4.1 in)
1980
96.5 mm (3.8 in)
1981
94.5 mm (3.7 in)
1982
116.9 mm (4.6 in)
1983
66.8 mm (2.6 in)
1984
105.1 mm (4.1 in)
1985
118.6 mm (4.7 in)
1986
231.4 mm (9.1 in)
1987
110.7 mm (4.4 in)
1988
129.8 mm (5.1 in)
1989
85.4 mm (3.4 in)
1990
177.2 mm (7.0 in)
1991
112.6 mm (4.4 in)
1992
125.5 mm (4.9 in)
1993
122.1 mm (4.8 in)
1994
162.8 mm (6.4 in)
1995
77.5 mm (3.1 in)
1996
161.3 mm (6.4 in)
1997
95.5 mm (3.8 in)
1998
111.3 mm (4.4 in)
1999
111.7 mm (4.4 in)
2000
142.8 mm (5.6 in)
2001
99.4 mm (3.9 in)
2002
84.4 mm (3.3 in)
2003
105.2 mm (4.1 in)
2004
150.4 mm (5.9 in)
2005
119.4 mm (4.7 in)
2006
109.2 mm (4.3 in)
2007
87.9 mm (3.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bentonville 4 S, 1943 to 2007. The record is 43 days in 2000, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Bentonville 4 S by year
Year
Longest dry spell (CDD)
1943
28 days
1944
27 days
1945
18 days
1946
27 days
1947
20 days
1948
38 days
1949
22 days
1950
28 days
1951
17 days
1952
26 days
1953
35 days
1954
23 days
1955
30 days
1956
22 days
1957
20 days
1958
17 days
1959
26 days
1960
28 days
1961
14 days
1962
27 days
1963
38 days
1964
20 days
1965
22 days
1966
19 days
1967
26 days
1968
18 days
1969
21 days
1970
27 days
1971
21 days
1972
29 days
1973
18 days
1974
21 days
1975
14 days
1976
20 days
1977
19 days
1978
14 days
1979
24 days
1980
24 days
1981
19 days
1982
14 days
1983
19 days
1984
16 days
1985
18 days
1986
23 days
1987
18 days
1988
17 days
1989
24 days
1990
18 days
1991
19 days
1992
19 days
1993
17 days
1994
12 days
1995
31 days
1996
25 days
1997
24 days
1998
21 days
1999
28 days
2000
43 days
2001
25 days
2002
19 days
2003
23 days
2004
25 days
2005
27 days
2006
23 days
2007
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
55 years with a frost
Across 55 years with a frost, the median last spring frost at Bentonville 4 S falls on 15 April and the median first autumn frost on 19 October, which leaves a median of 187 days between them.
Fitted over all years, the growing season changes by -0.3 days per decade at this station.
Frost dates and growing season at Bentonville 4 S
Measure
Median, all years
Earliest period
Recent period (1975 to 2005)
Recent against earliest
Fitted trend
Last spring frost
15 April
n/a
18 April
n/a
+1.1 days per decade
First autumn frost
19 October
n/a
19 October
n/a
+0.8 days per decade
Growing days
187 days
n/a
184 days
n/a
-0.3 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
60 years, 1944 to 2006
A day with at least 73.0 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 153.5 mm (6.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Bentonville 4 S: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
73.0 mm (2.9 in)
5 years
93.1 mm (3.7 in)
10 years
107.0 mm (4.2 in)
25 years
125.2 mm (4.9 in)
50 years
139.2 mm (5.5 in)
100 years
153.5 mm (6.0 in)
Longer than the 60 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, 60 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: 150.6 mm (5.9 in) in 1975; 143.5 mm (5.6 in) in 1990; 132.1 mm (5.2 in) in 1986.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Bentonville 4 S, at 1955. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1955 ran 0.3 C (0.6 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Bentonville 4 S, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1955
+0.3
+0.6
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 Bentonville 4 S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bentonville 4 S 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.