Record envelope, standing records and threshold days for Clarksville (USC00031455), Arkansas, United States, with 41 years of record.
Key Facts for Clarksville
Clarksville (USC00031455) is a weather station in Arkansas, United States at 35.48 latitude and -93.45 longitude, 138 m (454 ft) above sea level.
The station reports from 1953 to 1993, 41 years of record.
1,464 records set at Clarksville still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Clarksville set a monthly record low maximum temperature of 4.4 C (39.9 F) on 31 October 1993.
About the Station
Location: Arkansas, United States, 35.48 latitude, -93.45 longitude.
Elevation: 138 m (454 ft).
Period of record: 1953 to 1993, 41 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 Clarksville. 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 Clarksville, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.1 C (79.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Feb
30.6 C (87.1 F)
-18.3 C (-0.9 F)
n/a
n/a
Mar
33.3 C (91.9 F)
-12.8 C (9.0 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-6.7 C (19.9 F)
n/a
n/a
May
34.4 C (93.9 F)
0.6 C (33.1 F)
n/a
n/a
Jun
39.4 C (102.9 F)
6.7 C (44.1 F)
n/a
n/a
Jul
44.4 C (111.9 F)
10.0 C (50.0 F)
n/a
n/a
Aug
42.8 C (109.0 F)
7.8 C (46.0 F)
n/a
n/a
Sep
40.6 C (105.1 F)
1.7 C (35.1 F)
n/a
n/a
Oct
37.2 C (99.0 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
27.2 C (81.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Clarksville still stand. 1954 holds the most, with 65.
Standing records at Clarksville by the year they were set
Year set
Standing records
1953
25
1954
65
1955
56
1956
43
1957
31
1958
25
1959
37
1960
29
1961
36
1962
48
1963
61
1964
37
1965
38
1966
46
1967
40
1968
26
1969
20
1970
34
1971
23
1972
33
1973
16
1974
36
1975
25
1976
50
1977
24
1978
39
1979
34
1980
58
1981
30
1982
28
1983
40
1984
35
1985
41
1986
35
1987
25
1988
28
1989
56
1990
25
1991
32
1992
30
1993
24
All-Time Record Progression
2 new records
2 all-time records were set at Clarksville between 25 December 1983 and 7 January 1988. Each dot is a new record.
When Clarksville set new all-time records
Date
Kind
Detail
1983-12-25
Record low maximum temperature
Record low maximum temperature -11.7 C (10.9 F)
1988-01-07
Record daily snowfall
Record daily snowfall 17.8 cm (7.0 in)
Wettest Day of Each Month
Dec: 189.7 mm (7.5 in)
The wettest day on record for each calendar month at Clarksville. The most was 189.7 mm (7.5 in) on 3 December 1982.
Record daily precipitation for each month at Clarksville
Month
Record daily precipitation (mm)
Date
Jan
80.3 mm (3.2 in)
29 January 1969
Feb
109.7 mm (4.3 in)
9 February 1966
Mar
81.0 mm (3.2 in)
20 March 1979
Apr
100.3 mm (3.9 in)
3 April 1957
May
98.3 mm (3.9 in)
9 May 1958
Jun
140.2 mm (5.5 in)
5 June 1974
Jul
109.2 mm (4.3 in)
5 July 1967
Aug
72.1 mm (2.8 in)
14 August 1961
Sep
110.0 mm (4.3 in)
22 September 1965
Oct
112.5 mm (4.4 in)
29 October 1991
Nov
97.5 mm (3.8 in)
4 November 1959
Dec
189.7 mm (7.5 in)
3 December 1982
Period of Record Coverage
1953 to 1993
Complete yearUnder 90 percent of days
41 years of record at Clarksville, 1953 to 1993. 2 years have data for under 90 percent of days and are left out of rankings: 1953, 1993.
Cooler than the station meanWarmer than the station mean
One stripe for each of 37 complete years at Clarksville, 1954 to 1992. Blue stripes are years cooler than the station's own mean of 15.6 C (60.0 F); red stripes are warmer. The coolest year was 1979, at 13.5 C (56.4 F), and the warmest was 1954, at 17.4 C (63.4 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Clarksville as warming stripes, 1954 to 1992
Year
Annual mean temperature
Difference from the station mean
1954
17.4 C
+1.86 C
1955
16.5 C
+0.93 C
1956
16.6 C
+0.98 C
1958
15.4 C
-0.22 C
1959
16.0 C
+0.41 C
1960
15.5 C
-0.03 C
1961
15.7 C
+0.11 C
1962
16.3 C
+0.76 C
1963
16.8 C
+1.18 C
1964
16.6 C
+1.07 C
1965
16.8 C
+1.19 C
1966
15.9 C
+0.34 C
1967
16.0 C
+0.47 C
1968
15.5 C
-0.05 C
1969
16.1 C
+0.52 C
1970
16.1 C
+0.54 C
1971
16.3 C
+0.75 C
1972
16.1 C
+0.48 C
1973
16.3 C
+0.71 C
1974
15.7 C
+0.13 C
1975
14.6 C
-0.97 C
1976
13.9 C
-1.66 C
1977
15.1 C
-0.45 C
1978
14.4 C
-1.20 C
1979
13.5 C
-2.03 C
1980
15.1 C
-0.43 C
1981
14.9 C
-0.70 C
1982
14.7 C
-0.85 C
1984
14.9 C
-0.71 C
1985
15.1 C
-0.43 C
1986
15.8 C
+0.24 C
1987
15.4 C
-0.13 C
1988
14.7 C
-0.92 C
1989
14.2 C
-1.38 C
1990
15.8 C
+0.20 C
1991
15.6 C
+0.05 C
1992
14.8 C
-0.74 C
The annual mean temperature here has fallen by 0.5 C (0.3 to 0.7) per decade over 1954 to 1992. In Fahrenheit: 0.9 F (0.5 to 1.2) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Clarksville
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.5 C (-0.7 to -0.3) per decade
-0.9 F (-1.2 to -0.5) per decade
1954 to 1992
37
Fall
Mean daily maximum
-0.4 C (-0.6 to -0.2) per decade
-0.7 F (-1.1 to -0.4) per decade
1954 to 1992
37
Fall
Mean daily minimum
-0.6 C (-0.8 to -0.3) per decade
-1.0 F (-1.5 to -0.5) per decade
1954 to 1992
37
Fall
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
1953 to 1993
Yearly extremes at Clarksville: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.4 C (111.9 F)
1954
38.9 C (102.0 F)
41
Coldest night (TNn)
-23.9 C (-11.0 F)
1977
-14.4 C (6.1 F)
41
Wettest day (Rx1day)
189.7 mm (7.5 in)
1982
78.7 mm (3.1 in)
41
Wettest five days (Rx5day)
266.5 mm (10.5 in)
1991
125.2 mm (4.9 in)
41
Longest dry spell (CDD)
35 days
1963
22 days
41
Hottest day (TXx)
The hottest day of the year at Clarksville, 1953 to 1993. The record is 44.4 C (111.9 F) in 1954, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Clarksville by year
Year
Hottest day (TXx)
1953
40.0 C (104.0 F)
1954
44.4 C (111.9 F)
1955
37.8 C (100.0 F)
1956
42.8 C (109.0 F)
1957
39.4 C (102.9 F)
1958
37.2 C (99.0 F)
1959
35.6 C (96.1 F)
1960
39.4 C (102.9 F)
1961
35.6 C (96.1 F)
1962
38.9 C (102.0 F)
1963
41.7 C (107.1 F)
1964
42.8 C (109.0 F)
1965
39.4 C (102.9 F)
1966
39.4 C (102.9 F)
1967
36.7 C (98.1 F)
1968
37.8 C (100.0 F)
1969
40.0 C (104.0 F)
1970
40.0 C (104.0 F)
1971
39.4 C (102.9 F)
1972
38.9 C (102.0 F)
1973
38.3 C (100.9 F)
1974
41.1 C (106.0 F)
1975
37.8 C (100.0 F)
1976
39.4 C (102.9 F)
1977
37.8 C (100.0 F)
1978
41.1 C (106.0 F)
1979
35.6 C (96.1 F)
1980
42.8 C (109.0 F)
1981
38.3 C (100.9 F)
1982
38.3 C (100.9 F)
1983
39.4 C (102.9 F)
1984
37.8 C (100.0 F)
1985
39.4 C (102.9 F)
1986
42.2 C (108.0 F)
1987
38.9 C (102.0 F)
1988
38.3 C (100.9 F)
1989
37.8 C (100.0 F)
1990
38.3 C (100.9 F)
1991
37.2 C (99.0 F)
1992
36.7 C (98.1 F)
1993
38.9 C (102.0 F)
Coldest night (TNn)
The coldest night of the year at Clarksville, 1953 to 1993. The record is -23.9 C (-11.0 F) in 1977, marked on the chart; the median year is -14.4 C (6.1 F).
Coldest night (TNn) at Clarksville by year
Year
Coldest night (TNn)
1953
-13.3 C (8.1 F)
1954
-17.8 C (0.0 F)
1955
-12.8 C (9.0 F)
1956
-9.4 C (15.1 F)
1957
-13.3 C (8.1 F)
1958
-15.0 C (5.0 F)
1959
-15.0 C (5.0 F)
1960
-11.1 C (12.0 F)
1961
-12.8 C (9.0 F)
1962
-20.6 C (-5.1 F)
1963
-17.8 C (0.0 F)
1964
-15.6 C (3.9 F)
1965
-11.7 C (10.9 F)
1966
-18.3 C (-0.9 F)
1967
-11.7 C (10.9 F)
1968
-13.9 C (7.0 F)
1969
-11.7 C (10.9 F)
1970
-17.8 C (0.0 F)
1971
-12.8 C (9.0 F)
1972
-12.2 C (10.0 F)
1973
-11.7 C (10.9 F)
1974
-10.6 C (12.9 F)
1975
-12.8 C (9.0 F)
1976
-15.0 C (5.0 F)
1977
-23.9 C (-11.0 F)
1978
-16.7 C (1.9 F)
1979
-18.3 C (-0.9 F)
1980
-13.3 C (8.1 F)
1981
-16.1 C (3.0 F)
1982
-18.3 C (-0.9 F)
1983
-19.4 C (-2.9 F)
1984
-17.8 C (0.0 F)
1985
-20.6 C (-5.1 F)
1986
-15.6 C (3.9 F)
1987
-9.4 C (15.1 F)
1988
-20.6 C (-5.1 F)
1989
-22.8 C (-9.0 F)
1990
-14.4 C (6.1 F)
1991
-12.2 C (10.0 F)
1992
-11.7 C (10.9 F)
1993
-10.6 C (12.9 F)
Wettest day (Rx1day)
The wettest day of the year at Clarksville, 1953 to 1993. The record is 189.7 mm (7.5 in) in 1982, marked on the chart; the median year is 78.7 mm (3.1 in).
Wettest day (Rx1day) at Clarksville by year
Year
Wettest day (Rx1day)
1953
50.0 mm (2.0 in)
1954
78.7 mm (3.1 in)
1955
58.4 mm (2.3 in)
1956
68.8 mm (2.7 in)
1957
100.3 mm (3.9 in)
1958
98.3 mm (3.9 in)
1959
101.6 mm (4.0 in)
1960
62.2 mm (2.4 in)
1961
92.7 mm (3.6 in)
1962
57.4 mm (2.3 in)
1963
39.4 mm (1.6 in)
1964
78.7 mm (3.1 in)
1965
110.0 mm (4.3 in)
1966
109.7 mm (4.3 in)
1967
109.2 mm (4.3 in)
1968
66.3 mm (2.6 in)
1969
80.3 mm (3.2 in)
1970
68.1 mm (2.7 in)
1971
104.1 mm (4.1 in)
1972
81.3 mm (3.2 in)
1973
101.6 mm (4.0 in)
1974
140.2 mm (5.5 in)
1975
96.3 mm (3.8 in)
1976
58.4 mm (2.3 in)
1977
109.0 mm (4.3 in)
1978
61.7 mm (2.4 in)
1979
81.0 mm (3.2 in)
1980
52.1 mm (2.1 in)
1981
62.5 mm (2.5 in)
1982
189.7 mm (7.5 in)
1983
48.3 mm (1.9 in)
1984
72.4 mm (2.9 in)
1985
83.1 mm (3.3 in)
1986
53.6 mm (2.1 in)
1987
66.0 mm (2.6 in)
1988
75.2 mm (3.0 in)
1989
74.9 mm (2.9 in)
1990
87.9 mm (3.5 in)
1991
112.5 mm (4.4 in)
1992
74.9 mm (2.9 in)
1993
58.4 mm (2.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Clarksville, 1953 to 1993. The record is 266.5 mm (10.5 in) in 1991, marked on the chart; the median year is 125.2 mm (4.9 in).
Wettest five days (Rx5day) at Clarksville by year
Year
Wettest five days (Rx5day)
1953
52.6 mm (2.1 in)
1954
103.1 mm (4.1 in)
1955
107.7 mm (4.2 in)
1956
99.3 mm (3.9 in)
1957
130.8 mm (5.1 in)
1958
134.2 mm (5.3 in)
1959
144.8 mm (5.7 in)
1960
113.0 mm (4.4 in)
1961
169.2 mm (6.7 in)
1962
102.4 mm (4.0 in)
1963
79.4 mm (3.1 in)
1964
119.7 mm (4.7 in)
1965
123.4 mm (4.9 in)
1966
111.8 mm (4.4 in)
1967
109.2 mm (4.3 in)
1968
128.5 mm (5.1 in)
1969
129.3 mm (5.1 in)
1970
125.2 mm (4.9 in)
1971
212.1 mm (8.4 in)
1972
211.2 mm (8.3 in)
1973
196.3 mm (7.7 in)
1974
234.2 mm (9.2 in)
1975
125.6 mm (4.9 in)
1976
102.4 mm (4.0 in)
1977
129.9 mm (5.1 in)
1978
124.7 mm (4.9 in)
1979
144.0 mm (5.7 in)
1980
125.7 mm (4.9 in)
1981
102.6 mm (4.0 in)
1982
235.9 mm (9.3 in)
1983
103.4 mm (4.1 in)
1984
105.1 mm (4.1 in)
1985
132.3 mm (5.2 in)
1986
91.0 mm (3.6 in)
1987
102.1 mm (4.0 in)
1988
155.2 mm (6.1 in)
1989
144.8 mm (5.7 in)
1990
183.9 mm (7.2 in)
1991
266.5 mm (10.5 in)
1992
100.1 mm (3.9 in)
1993
93.1 mm (3.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Clarksville, 1953 to 1993. The record is 35 days in 1963, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Clarksville by year
Year
Longest dry spell (CDD)
1953
15 days
1954
20 days
1955
30 days
1956
16 days
1957
23 days
1958
12 days
1959
22 days
1960
19 days
1961
22 days
1962
23 days
1963
35 days
1964
23 days
1965
22 days
1966
29 days
1967
19 days
1968
19 days
1969
24 days
1970
26 days
1971
15 days
1972
22 days
1973
30 days
1974
26 days
1975
19 days
1976
19 days
1977
16 days
1978
17 days
1979
19 days
1980
23 days
1981
24 days
1982
17 days
1983
28 days
1984
12 days
1985
22 days
1986
23 days
1987
29 days
1988
16 days
1989
23 days
1990
18 days
1991
19 days
1992
21 days
1993
21 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
37 years with a frost
Across 37 years with a frost, the median last spring frost at Clarksville falls on 6 April and the median first autumn frost on 27 October, which leaves a median of 205 days between them.
Fitted over all years, the growing season changes by -2.2 days per decade at this station.
Frost dates and growing season at Clarksville
Measure
Median, all years
Earliest period
Recent period (1962 to 1992)
Recent against earliest
Fitted trend
Last spring frost
6 April
n/a
6 April
n/a
+1.6 days per decade
First autumn frost
27 October
n/a
27 October
n/a
-0.6 days per decade
Growing days
205 days
n/a
203 days
n/a
-2.2 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
39 years, 1954 to 1992
A day with at least 78.9 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 172.5 mm (6.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Clarksville: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
78.9 mm (3.1 in)
5 years
103.1 mm (4.1 in)
10 years
119.5 mm (4.7 in)
25 years
140.6 mm (5.5 in)
50 years
156.5 mm (6.2 in)
Longer than the 39 years of record
100 years
172.5 mm (6.8 in)
Longer than the 39 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, 39 years of values from 1954 to 1992.
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: 189.7 mm (7.5 in) in 1982; 140.2 mm (5.5 in) in 1974; 112.5 mm (4.4 in) in 1991.
Download the Data
Data for Clarksville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Clarksville 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.