Morrilton Weather Records (USC00034938)
Record envelope, standing records and threshold days for Morrilton (USC00034938), Arkansas, United States, with 108 years of record.
Key Facts for Morrilton
- Morrilton (USC00034938) is a weather station in Arkansas, United States at 35.16 latitude and -92.77 longitude, 104 m (340 ft) above sea level.
- The station reports from 1919 to 2026, 108 years of record.
- 1,464 records set at Morrilton still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Morrilton set a daily record high minimum temperature of 23.3 C (73.9 F) on 21 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Arkansas, United States, 35.16 latitude, -92.77 longitude.
- Elevation: 104 m (340 ft).
- Period of record: 1919 to 2026, 108 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
9 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 27.8 C (82.0 F) | -21.7 C (-7.1 F) | 23.3 C (73.9 F) | -15.0 C (5.0 F) |
| Feb | 31.1 C (88.0 F) | -26.1 C (-15.0 F) | 26.1 C (79.0 F) | -10.0 C (14.0 F) |
| Mar | 33.9 C (93.0 F) | -12.8 C (9.0 F) | 32.8 C (91.0 F) | -3.9 C (25.0 F) |
| Apr | 35.6 C (96.1 F) | -4.4 C (24.1 F) | 30.0 C (86.0 F) | 3.3 C (37.9 F) |
| May | 38.3 C (100.9 F) | 1.1 C (34.0 F) | 31.7 C (89.1 F) | 6.1 C (43.0 F) |
| Jun | 42.8 C (109.0 F) | 8.3 C (46.9 F) | 34.4 C (93.9 F) | 17.2 C (63.0 F) |
| Jul | 46.1 C (115.0 F) | 9.4 C (48.9 F) | 38.9 C (102.0 F) | 20.6 C (69.1 F) |
| Aug | 46.1 C (115.0 F) | 6.1 C (43.0 F) | 40.6 C (105.1 F) | 18.9 C (66.0 F) |
| Sep | 42.8 C (109.0 F) | 1.1 C (34.0 F) | 38.3 C (100.9 F) | 15.0 C (59.0 F) |
| Oct | 35.6 C (96.1 F) | -5.0 C (23.0 F) | 33.3 C (91.9 F) | 11.1 C (52.0 F) |
| Nov | 32.2 C (90.0 F) | -11.1 C (12.0 F) | n/a | n/a |
| Dec | 26.7 C (80.1 F) | -21.1 C (-6.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1919 | 12 |
| 1920 | 3 |
| 1921 | 2 |
| 1922 | 6 |
| 1923 | 11 |
| 1924 | 13 |
| 1925 | 8 |
| 1926 | 12 |
| 1927 | 25 |
| 1928 | 12 |
| 1929 | 9 |
| 1930 | 24 |
| 1931 | 17 |
| 1932 | 15 |
| 1933 | 15 |
| 1934 | 17 |
| 1935 | 8 |
| 1936 | 18 |
| 1937 | 7 |
| 1938 | 12 |
| 1939 | 10 |
| 1940 | 27 |
| 1941 | 8 |
| 1942 | 23 |
| 1943 | 24 |
| 1944 | 13 |
| 1945 | 18 |
| 1946 | 10 |
| 1947 | 13 |
| 1948 | 19 |
| 1949 | 10 |
| 1950 | 17 |
| 1951 | 20 |
| 1952 | 36 |
| 1953 | 17 |
| 1954 | 25 |
| 1955 | 19 |
| 1956 | 15 |
| 1957 | 11 |
| 1958 | 12 |
| 1959 | 5 |
| 1960 | 13 |
| 1961 | 10 |
| 1962 | 15 |
| 1963 | 26 |
| 1964 | 15 |
| 1965 | 19 |
| 1966 | 15 |
| 1967 | 15 |
| 1968 | 5 |
| 1969 | 8 |
| 1970 | 10 |
| 1971 | 10 |
| 1972 | 19 |
| 1973 | 4 |
| 1974 | 22 |
| 1975 | 8 |
| 1976 | 23 |
| 1977 | 8 |
| 1979 | 6 |
| 1980 | 11 |
| 1983 | 31 |
| 1984 | 8 |
| 1985 | 9 |
| 1986 | 21 |
| 1987 | 26 |
| 1988 | 22 |
| 1989 | 6 |
| 1990 | 1 |
| 1991 | 16 |
| 1992 | 22 |
| 1993 | 18 |
| 1994 | 11 |
| 1995 | 14 |
| 1996 | 18 |
| 1997 | 13 |
| 1998 | 4 |
| 1999 | 10 |
| 2000 | 19 |
| 2001 | 9 |
| 2002 | 11 |
| 2003 | 3 |
| 2004 | 21 |
| 2005 | 10 |
| 2006 | 14 |
| 2007 | 8 |
| 2008 | 10 |
| 2009 | 7 |
| 2010 | 10 |
| 2011 | 26 |
| 2012 | 21 |
| 2013 | 22 |
| 2014 | 24 |
| 2015 | 9 |
| 2016 | 9 |
| 2017 | 7 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 6 |
| 2021 | 22 |
| 2022 | 15 |
| 2023 | 9 |
| 2024 | 10 |
| 2025 | 15 |
| 2026 | 15 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1957-08-13 | Record daily precipitation | Record daily precipitation 154.4 mm (6.1 in) |
| 1962-01-10 | Record low maximum temperature | Record low maximum temperature -8.9 C (16.0 F) |
| 1983-12-25 | Record low maximum temperature | Record low maximum temperature -9.4 C (15.1 F) |
| 1985-11-27 | Record daily precipitation | Record daily precipitation 159.3 mm (6.3 in) |
| 1986-07-31 | Record high maximum temperature | Record high maximum temperature 46.1 C (115.0 F) |
| 1988-01-07 | Record snow depth | Record snow depth 30.5 cm (12.0 in) |
| 2003-05-16 | Record daily precipitation | Record daily precipitation 180.3 mm (7.1 in) |
| 2012-12-26 | Record daily snowfall | Record daily snowfall 31.8 cm (12.5 in) |
Wettest Day of Each Month
May: 180.3 mm (7.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 115.3 mm (4.5 in) | 30 January 1969 |
| Feb | 94.0 mm (3.7 in) | 21 February 1945 |
| Mar | 115.6 mm (4.6 in) | 19 March 2008 |
| Apr | 129.8 mm (5.1 in) | 11 April 1995 |
| May | 180.3 mm (7.1 in) | 16 May 2003 |
| Jun | 98.0 mm (3.9 in) | 17 June 1935 |
| Jul | 166.1 mm (6.5 in) | 9 July 2024 |
| Aug | 154.4 mm (6.1 in) | 13 August 1957 |
| Sep | 129.5 mm (5.1 in) | 22 September 1965 |
| Oct | 132.6 mm (5.2 in) | 7 October 1930 |
| Nov | 159.3 mm (6.3 in) | 27 November 1985 |
| Dec | 116.8 mm (4.6 in) | 24 December 2009 |
Period of Record Coverage
1919 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1919 | 121 | 33% | No |
| 1920 | 58 | 16% | No |
| 1921 | 119 | 33% | No |
| 1922 | 362 | 99% | Yes |
| 1923 | 263 | 72% | No |
| 1924 | 298 | 81% | No |
| 1925 | 169 | 46% | No |
| 1926 | 304 | 83% | No |
| 1927 | 352 | 96% | Yes |
| 1928 | 345 | 94% | Yes |
| 1929 | 344 | 94% | Yes |
| 1930 | 351 | 96% | Yes |
| 1931 | 349 | 96% | Yes |
| 1932 | 352 | 96% | Yes |
| 1933 | 341 | 93% | Yes |
| 1934 | 347 | 95% | Yes |
| 1935 | 327 | 90% | No |
| 1936 | 357 | 98% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 355 | 97% | Yes |
| 1939 | 321 | 88% | No |
| 1940 | 340 | 93% | Yes |
| 1941 | 335 | 92% | Yes |
| 1942 | 341 | 93% | Yes |
| 1943 | 343 | 94% | Yes |
| 1944 | 360 | 98% | Yes |
| 1945 | 353 | 97% | Yes |
| 1946 | 344 | 94% | Yes |
| 1947 | 334 | 92% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 359 | 98% | Yes |
| 1950 | 341 | 93% | Yes |
| 1951 | 351 | 96% | Yes |
| 1952 | 325 | 89% | No |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 363 | 99% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 361 | 99% | Yes |
| 1973 | 360 | 99% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 273 | 75% | No |
| 1979 | 192 | 53% | No |
| 1980 | 171 | 47% | No |
| 1983 | 128 | 35% | No |
| 1984 | 355 | 97% | Yes |
| 1985 | 249 | 68% | No |
| 1986 | 365 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 120 | 33% | No |
| 1990 | 31 | 8% | No |
| 1991 | 365 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 364 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 363 | 99% | Yes |
| 2005 | 347 | 95% | Yes |
| 2006 | 361 | 99% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 362 | 99% | Yes |
| 2012 | 363 | 99% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 360 | 99% | Yes |
| 2015 | 362 | 99% | Yes |
| 2016 | 360 | 98% | Yes |
| 2017 | 358 | 98% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 359 | 98% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 361 | 99% | Yes |
| 2022 | 357 | 98% | Yes |
| 2023 | 356 | 98% | Yes |
| 2024 | 364 | 99% | Yes |
| 2025 | 355 | 97% | Yes |
| 2026 | 281 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 21 September 2026 | Morrilton, US | daily high min (Provisional) | 23.3 C (73.9 F) | 0.5 C (0.9 F) | 95 years | 39 of 100 (Notable) |
| 20 September 2026 | Morrilton, US | daily high max (Tie, Provisional) | 37.2 C (99.0 F) | tie | 72 years | 7 of 100 (Routine) |
| 19 September 2026 | Morrilton, US | daily high max (Tie, Provisional) | 36.7 C (98.1 F) | tie | 11 years | 3 of 100 (Routine) |
| 18 September 2026 | Morrilton, US | daily high max (Provisional) | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 95 years | 39 of 100 (Notable) |
| 17 September 2026 | Morrilton, US | daily high min (Provisional) | 23.9 C (75.0 F) | 1.1 C (2.0 F) | 104 years | 42 of 100 (Notable) |
| 16 September 2026 | Morrilton, US | daily high min (Provisional) | 24.4 C (75.9 F) | 1.6 C (2.9 F) | 95 years | 41 of 100 (Notable) |
| 15 September 2026 | Morrilton, US | daily high min (Provisional) | 24.4 C (75.9 F) | 1.6 C (2.9 F) | 95 years | 41 of 100 (Notable) |
| 14 September 2026 | Morrilton, US | daily high min (Provisional) | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 32 years | 20 of 100 (Routine) |
| 12 September 2026 | Morrilton, US | daily high min (Tie, Provisional) | 22.8 C (73.0 F) | tie | 75 years | 8 of 100 (Routine) |
| 10 September 2026 | Morrilton, US | daily high min (Tie, Provisional) | 23.9 C (75.0 F) | tie | 87 years | 9 of 100 (Routine) |
| 7 September 2026 | Morrilton, US | daily high min (Provisional) | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 8 years | 13 of 100 (Routine) |
| 6 September 2026 | Morrilton, US | daily high min (Provisional) | 25.6 C (78.1 F) | 1.7 C (3.1 F) | 3 years | 13 of 100 (Routine) |
| 4 September 2026 | Morrilton, US | daily high min (Tie, Provisional) | 23.9 C (75.0 F) | tie | 89 years | 9 of 100 (Routine) |
| 3 September 2026 | Morrilton, US | daily high min (Tie, Provisional) | 23.9 C (75.0 F) | tie | 56 years | 6 of 100 (Routine) |
| 27 August 2026 | Morrilton, US | daily rain (Provisional) | 52.6 mm (2.1 in) | 20.8 mm (0.8 in) | 81 years | 47 of 100 (Notable) |
| 19 August 2026 | Morrilton, US | daily high min (Provisional) | 25.0 C (77.0 F) | 0.6 C (1.1 F) | 91 years | 39 of 100 (Notable) |
| 17 August 2026 | Morrilton, US | daily high min (Tie, Provisional) | 25.6 C (78.1 F) | tie | 101 years | 10 of 100 (Routine) |
| 14 August 2026 | Morrilton, US | daily high min (Tie) | 25.6 C (78.1 F) | tie | 16 years | 3 of 100 (Routine) |
| 11 August 2026 | Morrilton, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 96 years | 9 of 100 (Routine) |
| 10 August 2026 | Morrilton, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 16 years | 3 of 100 (Routine) |
Climate Trend
84 complete years, 1922 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1922 | 17.3 C | +0.89 C |
| 1927 | 17.8 C | +1.39 C |
| 1928 | 16.4 C | -0.04 C |
| 1929 | 16.0 C | -0.42 C |
| 1930 | 16.6 C | +0.25 C |
| 1931 | 17.1 C | +0.75 C |
| 1932 | 16.8 C | +0.40 C |
| 1933 | 16.9 C | +0.55 C |
| 1934 | 16.5 C | +0.06 C |
| 1937 | 16.8 C | +0.43 C |
| 1938 | 18.5 C | +2.11 C |
| 1940 | 15.1 C | -1.29 C |
| 1942 | 15.8 C | -0.57 C |
| 1943 | 16.4 C | +0.01 C |
| 1944 | 16.8 C | +0.39 C |
| 1946 | 17.0 C | +0.60 C |
| 1947 | 15.7 C | -0.73 C |
| 1948 | 15.9 C | -0.53 C |
| 1949 | 16.2 C | -0.15 C |
| 1950 | 16.2 C | -0.24 C |
| 1951 | 16.4 C | +0.01 C |
| 1953 | 17.3 C | +0.90 C |
| 1954 | 17.9 C | +1.47 C |
| 1955 | 16.8 C | +0.44 C |
| 1956 | 17.2 C | +0.78 C |
| 1957 | 16.7 C | +0.30 C |
| 1958 | 15.7 C | -0.69 C |
| 1959 | 16.4 C | +0.05 C |
| 1960 | 15.8 C | -0.59 C |
| 1961 | 16.0 C | -0.42 C |
| 1962 | 16.7 C | +0.26 C |
| 1963 | 17.0 C | +0.65 C |
| 1964 | 17.2 C | +0.77 C |
| 1965 | 17.6 C | +1.18 C |
| 1966 | 16.5 C | +0.08 C |
| 1967 | 16.8 C | +0.38 C |
| 1968 | 16.1 C | -0.26 C |
| 1969 | 16.8 C | +0.36 C |
| 1970 | 16.9 C | +0.50 C |
| 1971 | 17.1 C | +0.74 C |
| 1972 | 16.9 C | +0.55 C |
| 1973 | 17.0 C | +0.57 C |
| 1974 | 17.0 C | +0.56 C |
| 1975 | 16.4 C | -0.02 C |
| 1976 | 15.9 C | -0.54 C |
| 1977 | 16.9 C | +0.51 C |
| 1984 | 16.8 C | +0.43 C |
| 1986 | 17.4 C | +0.97 C |
| 1987 | 16.2 C | -0.21 C |
| 1988 | 16.6 C | +0.25 C |
| 1991 | 16.0 C | -0.39 C |
| 1992 | 15.2 C | -1.23 C |
| 1993 | 14.8 C | -1.59 C |
| 1994 | 15.3 C | -1.14 C |
| 1995 | 15.2 C | -1.21 C |
| 1996 | 14.8 C | -1.64 C |
| 1997 | 15.0 C | -1.42 C |
| 1998 | 16.9 C | +0.47 C |
| 1999 | 16.1 C | -0.27 C |
| 2000 | 15.6 C | -0.79 C |
| 2001 | 15.8 C | -0.62 C |
| 2002 | 15.3 C | -1.07 C |
| 2003 | 15.2 C | -1.15 C |
| 2004 | 15.7 C | -0.71 C |
| 2006 | 16.5 C | +0.11 C |
| 2007 | 16.3 C | -0.05 C |
| 2008 | 15.2 C | -1.21 C |
| 2009 | 15.3 C | -1.08 C |
| 2010 | 16.1 C | -0.25 C |
| 2011 | 16.4 C | +0.02 C |
| 2012 | 17.4 C | +1.05 C |
| 2013 | 15.3 C | -1.13 C |
| 2014 | 15.0 C | -1.43 C |
| 2015 | 16.2 C | -0.18 C |
| 2016 | 16.8 C | +0.43 C |
| 2017 | 16.6 C | +0.24 C |
| 2018 | 16.1 C | -0.30 C |
| 2019 | 16.3 C | -0.14 C |
| 2020 | 16.1 C | -0.25 C |
| 2021 | 16.4 C | +0.02 C |
| 2022 | 16.3 C | -0.07 C |
| 2023 | 17.5 C | +1.09 C |
| 2024 | 17.6 C | +1.25 C |
| 2025 | 16.9 C | +0.48 C |
The annual mean temperature here has fallen by 0.08 C (0.02 to 0.13) per decade over 1922 to 2025. In Fahrenheit: 0.14 F (0.04 to 0.24) per decade. The slope is a straight line fitted to 84 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.08 C (-0.13 to -0.02) per decade | -0.14 F (-0.24 to -0.04) per decade | 1922 to 2025 | 84 | Fall |
| Mean daily maximum | -0.05 C (-0.12 to 0.02) per decade | -0.09 F (-0.22 to 0.03) per decade | 1922 to 2025 | 84 | Not clearly different from zero |
| Mean daily minimum | -0.10 C (-0.16 to -0.05) per decade | -0.2 F (-0.3 to -0.1) per decade | 1922 to 2025 | 84 | 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
1919 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 46.1 C (115.0 F) | 1986 | 39.2 C (102.5 F) | 106 |
| Coldest night (TNn) | -26.1 C (-15.0 F) | 1951 | -12.2 C (10.0 F) | 106 |
| Wettest day (Rx1day) | 180.3 mm (7.1 in) | 2003 | 81.3 mm (3.2 in) | 106 |
| Wettest five days (Rx5day) | 239.8 mm (9.4 in) | 1970 | 117.8 mm (4.6 in) | 106 |
| Longest dry spell (CDD) | 48 days | 2007 | 23 days | 106 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1919 | 37.8 C (100.0 F) |
| 1920 | 21.1 C (70.0 F) |
| 1921 | 35.6 C (96.1 F) |
| 1922 | 38.3 C (100.9 F) |
| 1923 | 38.9 C (102.0 F) |
| 1924 | 40.6 C (105.1 F) |
| 1925 | 40.0 C (104.0 F) |
| 1926 | 41.7 C (107.1 F) |
| 1927 | 38.3 C (100.9 F) |
| 1928 | 38.3 C (100.9 F) |
| 1929 | 41.7 C (107.1 F) |
| 1930 | 43.9 C (111.0 F) |
| 1931 | 41.1 C (106.0 F) |
| 1932 | 40.0 C (104.0 F) |
| 1933 | 40.0 C (104.0 F) |
| 1934 | 41.1 C (106.0 F) |
| 1935 | 40.6 C (105.1 F) |
| 1936 | 45.6 C (114.1 F) |
| 1937 | 41.7 C (107.1 F) |
| 1938 | 39.4 C (102.9 F) |
| 1939 | 40.0 C (104.0 F) |
| 1940 | 37.2 C (99.0 F) |
| 1941 | 37.8 C (100.0 F) |
| 1942 | 38.3 C (100.9 F) |
| 1943 | 41.7 C (107.1 F) |
| 1944 | 41.1 C (106.0 F) |
| 1945 | 40.0 C (104.0 F) |
| 1946 | 39.4 C (102.9 F) |
| 1947 | 42.2 C (108.0 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 37.8 C (100.0 F) |
| 1950 | 36.7 C (98.1 F) |
| 1951 | 40.6 C (105.1 F) |
| 1952 | 40.6 C (105.1 F) |
| 1953 | 39.4 C (102.9 F) |
| 1954 | 43.9 C (111.0 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 42.8 C (109.0 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 36.7 C (98.1 F) |
| 1960 | 38.3 C (100.9 F) |
| 1961 | 35.6 C (96.1 F) |
| 1962 | 40.0 C (104.0 F) |
| 1963 | 40.6 C (105.1 F) |
| 1964 | 42.2 C (108.0 F) |
| 1965 | 37.8 C (100.0 F) |
| 1966 | 41.1 C (106.0 F) |
| 1967 | 37.2 C (99.0 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 40.0 C (104.0 F) |
| 1970 | 38.9 C (102.0 F) |
| 1971 | 40.6 C (105.1 F) |
| 1972 | 40.6 C (105.1 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 40.6 C (105.1 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 38.3 C (100.9 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 38.9 C (102.0 F) |
| 1979 | 35.6 C (96.1 F) |
| 1980 | 42.2 C (108.0 F) |
| 1983 | 42.2 C (108.0 F) |
| 1984 | 40.0 C (104.0 F) |
| 1985 | 41.7 C (107.1 F) |
| 1986 | 46.1 C (115.0 F) |
| 1987 | 43.3 C (109.9 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 32.8 C (91.0 F) |
| 1990 | 20.6 C (69.1 F) |
| 1991 | 37.8 C (100.0 F) |
| 1992 | 35.0 C (95.0 F) |
| 1993 | 39.4 C (102.9 F) |
| 1994 | 36.1 C (97.0 F) |
| 1995 | 39.4 C (102.9 F) |
| 1996 | 36.7 C (98.1 F) |
| 1997 | 39.4 C (102.9 F) |
| 1998 | 40.0 C (104.0 F) |
| 1999 | 40.6 C (105.1 F) |
| 2000 | 42.8 C (109.0 F) |
| 2001 | 38.3 C (100.9 F) |
| 2002 | 37.2 C (99.0 F) |
| 2003 | 37.2 C (99.0 F) |
| 2004 | 36.1 C (97.0 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 40.0 C (104.0 F) |
| 2007 | 40.0 C (104.0 F) |
| 2008 | 37.2 C (99.0 F) |
| 2009 | 37.2 C (99.0 F) |
| 2010 | 41.7 C (107.1 F) |
| 2011 | 46.1 C (115.0 F) |
| 2012 | 42.8 C (109.0 F) |
| 2013 | 38.9 C (102.0 F) |
| 2014 | 38.3 C (100.9 F) |
| 2015 | 38.9 C (102.0 F) |
| 2016 | 37.8 C (100.0 F) |
| 2017 | 37.2 C (99.0 F) |
| 2018 | 38.9 C (102.0 F) |
| 2019 | 37.8 C (100.0 F) |
| 2020 | 37.2 C (99.0 F) |
| 2021 | 38.9 C (102.0 F) |
| 2022 | 42.2 C (108.0 F) |
| 2023 | 40.6 C (105.1 F) |
| 2024 | 38.3 C (100.9 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 40.6 C (105.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1919 | -3.9 C (25.0 F) |
| 1920 | -9.4 C (15.1 F) |
| 1921 | -7.2 C (19.0 F) |
| 1922 | -6.1 C (21.0 F) |
| 1923 | -9.4 C (15.1 F) |
| 1924 | -13.3 C (8.1 F) |
| 1925 | -6.7 C (19.9 F) |
| 1926 | -10.0 C (14.0 F) |
| 1927 | -11.7 C (10.9 F) |
| 1928 | -15.6 C (3.9 F) |
| 1929 | -12.8 C (9.0 F) |
| 1930 | -21.1 C (-6.0 F) |
| 1931 | -7.2 C (19.0 F) |
| 1932 | -12.8 C (9.0 F) |
| 1933 | -15.6 C (3.9 F) |
| 1934 | -10.6 C (12.9 F) |
| 1935 | -12.2 C (10.0 F) |
| 1936 | -15.0 C (5.0 F) |
| 1937 | -10.0 C (14.0 F) |
| 1938 | -9.4 C (15.1 F) |
| 1939 | -7.8 C (18.0 F) |
| 1940 | -17.8 C (0.0 F) |
| 1941 | -8.3 C (17.1 F) |
| 1942 | -21.7 C (-7.1 F) |
| 1943 | -15.0 C (5.0 F) |
| 1944 | -21.1 C (-6.0 F) |
| 1945 | -12.2 C (10.0 F) |
| 1946 | -10.6 C (12.9 F) |
| 1947 | -11.1 C (12.0 F) |
| 1948 | -13.9 C (7.0 F) |
| 1949 | -13.3 C (8.1 F) |
| 1950 | -12.8 C (9.0 F) |
| 1951 | -26.1 C (-15.0 F) |
| 1952 | -5.6 C (21.9 F) |
| 1953 | -10.6 C (12.9 F) |
| 1954 | -10.0 C (14.0 F) |
| 1955 | -11.7 C (10.9 F) |
| 1956 | -7.8 C (18.0 F) |
| 1957 | -10.6 C (12.9 F) |
| 1958 | -15.6 C (3.9 F) |
| 1959 | -14.4 C (6.1 F) |
| 1960 | -11.1 C (12.0 F) |
| 1961 | -11.7 C (10.9 F) |
| 1962 | -20.6 C (-5.1 F) |
| 1963 | -15.6 C (3.9 F) |
| 1964 | -12.8 C (9.0 F) |
| 1965 | -9.4 C (15.1 F) |
| 1966 | -16.7 C (1.9 F) |
| 1967 | -12.2 C (10.0 F) |
| 1968 | -13.9 C (7.0 F) |
| 1969 | -11.1 C (12.0 F) |
| 1970 | -13.9 C (7.0 F) |
| 1971 | -11.7 C (10.9 F) |
| 1972 | -12.2 C (10.0 F) |
| 1973 | -10.6 C (12.9 F) |
| 1974 | -10.6 C (12.9 F) |
| 1975 | -10.0 C (14.0 F) |
| 1976 | -13.9 C (7.0 F) |
| 1977 | -17.2 C (1.0 F) |
| 1978 | -12.8 C (9.0 F) |
| 1979 | -11.7 C (10.9 F) |
| 1980 | -10.6 C (12.9 F) |
| 1983 | -21.1 C (-6.0 F) |
| 1984 | -14.4 C (6.1 F) |
| 1985 | -21.1 C (-6.0 F) |
| 1986 | -12.2 C (10.0 F) |
| 1987 | -10.6 C (12.9 F) |
| 1988 | -18.9 C (-2.0 F) |
| 1989 | -11.7 C (10.9 F) |
| 1990 | -12.8 C (9.0 F) |
| 1991 | -11.1 C (12.0 F) |
| 1992 | -9.4 C (15.1 F) |
| 1993 | -10.0 C (14.0 F) |
| 1994 | -10.6 C (12.9 F) |
| 1995 | -13.3 C (8.1 F) |
| 1996 | -17.8 C (0.0 F) |
| 1997 | -13.3 C (8.1 F) |
| 1998 | -10.0 C (14.0 F) |
| 1999 | -11.1 C (12.0 F) |
| 2000 | -13.3 C (8.1 F) |
| 2001 | -12.2 C (10.0 F) |
| 2002 | -11.7 C (10.9 F) |
| 2003 | -11.7 C (10.9 F) |
| 2004 | -13.9 C (7.0 F) |
| 2005 | -11.7 C (10.9 F) |
| 2006 | -11.7 C (10.9 F) |
| 2007 | -10.6 C (12.9 F) |
| 2008 | -11.1 C (12.0 F) |
| 2009 | -10.0 C (14.0 F) |
| 2010 | -13.3 C (8.1 F) |
| 2011 | -18.3 C (-0.9 F) |
| 2012 | -10.6 C (12.9 F) |
| 2013 | -8.3 C (17.1 F) |
| 2014 | -14.4 C (6.1 F) |
| 2015 | -13.9 C (7.0 F) |
| 2016 | -12.8 C (9.0 F) |
| 2017 | -14.4 C (6.1 F) |
| 2018 | -15.0 C (5.0 F) |
| 2019 | -8.9 C (16.0 F) |
| 2020 | -7.2 C (19.0 F) |
| 2021 | -21.1 C (-6.0 F) |
| 2022 | -16.7 C (1.9 F) |
| 2023 | -6.1 C (21.0 F) |
| 2024 | -17.2 C (1.0 F) |
| 2025 | -13.3 C (8.1 F) |
| 2026 | -15.0 C (5.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1919 | 66.0 mm (2.6 in) |
| 1920 | 50.8 mm (2.0 in) |
| 1921 | 104.1 mm (4.1 in) |
| 1922 | 45.5 mm (1.8 in) |
| 1923 | 90.2 mm (3.6 in) |
| 1924 | 76.2 mm (3.0 in) |
| 1925 | 33.0 mm (1.3 in) |
| 1926 | 55.1 mm (2.2 in) |
| 1927 | 145.5 mm (5.7 in) |
| 1928 | 83.8 mm (3.3 in) |
| 1929 | 81.3 mm (3.2 in) |
| 1930 | 132.6 mm (5.2 in) |
| 1931 | 104.1 mm (4.1 in) |
| 1932 | 82.6 mm (3.3 in) |
| 1933 | 70.6 mm (2.8 in) |
| 1934 | 78.7 mm (3.1 in) |
| 1935 | 98.0 mm (3.9 in) |
| 1936 | 54.6 mm (2.1 in) |
| 1937 | 74.9 mm (2.9 in) |
| 1938 | 121.9 mm (4.8 in) |
| 1939 | 93.0 mm (3.7 in) |
| 1940 | 75.7 mm (3.0 in) |
| 1941 | 90.4 mm (3.6 in) |
| 1942 | 91.4 mm (3.6 in) |
| 1943 | 63.0 mm (2.5 in) |
| 1944 | 67.3 mm (2.6 in) |
| 1945 | 101.6 mm (4.0 in) |
| 1946 | 114.8 mm (4.5 in) |
| 1947 | 57.2 mm (2.3 in) |
| 1948 | 83.8 mm (3.3 in) |
| 1949 | 100.6 mm (4.0 in) |
| 1950 | 64.8 mm (2.6 in) |
| 1951 | 76.2 mm (3.0 in) |
| 1952 | 87.6 mm (3.4 in) |
| 1953 | 76.5 mm (3.0 in) |
| 1954 | 65.5 mm (2.6 in) |
| 1955 | 57.9 mm (2.3 in) |
| 1956 | 100.6 mm (4.0 in) |
| 1957 | 154.4 mm (6.1 in) |
| 1958 | 79.8 mm (3.1 in) |
| 1959 | 81.3 mm (3.2 in) |
| 1960 | 74.2 mm (2.9 in) |
| 1961 | 72.1 mm (2.8 in) |
| 1962 | 62.2 mm (2.4 in) |
| 1963 | 41.9 mm (1.6 in) |
| 1964 | 72.9 mm (2.9 in) |
| 1965 | 129.5 mm (5.1 in) |
| 1966 | 69.1 mm (2.7 in) |
| 1967 | 71.1 mm (2.8 in) |
| 1968 | 77.5 mm (3.1 in) |
| 1969 | 115.3 mm (4.5 in) |
| 1970 | 150.6 mm (5.9 in) |
| 1971 | 96.3 mm (3.8 in) |
| 1972 | 70.6 mm (2.8 in) |
| 1973 | 90.7 mm (3.6 in) |
| 1974 | 89.9 mm (3.5 in) |
| 1975 | 78.7 mm (3.1 in) |
| 1976 | 38.1 mm (1.5 in) |
| 1977 | 84.8 mm (3.3 in) |
| 1978 | 66.0 mm (2.6 in) |
| 1979 | 81.3 mm (3.2 in) |
| 1980 | 75.2 mm (3.0 in) |
| 1983 | 61.7 mm (2.4 in) |
| 1984 | 96.8 mm (3.8 in) |
| 1985 | 159.3 mm (6.3 in) |
| 1986 | 62.2 mm (2.4 in) |
| 1987 | 88.9 mm (3.5 in) |
| 1988 | 79.8 mm (3.1 in) |
| 1989 | 78.7 mm (3.1 in) |
| 1990 | 38.4 mm (1.5 in) |
| 1991 | 111.8 mm (4.4 in) |
| 1992 | 67.3 mm (2.6 in) |
| 1993 | 95.3 mm (3.8 in) |
| 1994 | 96.5 mm (3.8 in) |
| 1995 | 129.8 mm (5.1 in) |
| 1996 | 89.7 mm (3.5 in) |
| 1997 | 100.1 mm (3.9 in) |
| 1998 | 91.4 mm (3.6 in) |
| 1999 | 66.5 mm (2.6 in) |
| 2000 | 69.1 mm (2.7 in) |
| 2001 | 62.2 mm (2.4 in) |
| 2002 | 69.9 mm (2.8 in) |
| 2003 | 180.3 mm (7.1 in) |
| 2004 | 107.4 mm (4.2 in) |
| 2005 | 88.1 mm (3.5 in) |
| 2006 | 96.5 mm (3.8 in) |
| 2007 | 90.2 mm (3.6 in) |
| 2008 | 115.6 mm (4.6 in) |
| 2009 | 116.8 mm (4.6 in) |
| 2010 | 77.5 mm (3.1 in) |
| 2011 | 108.7 mm (4.3 in) |
| 2012 | 95.2 mm (3.7 in) |
| 2013 | 80.3 mm (3.2 in) |
| 2014 | 77.7 mm (3.1 in) |
| 2015 | 97.8 mm (3.9 in) |
| 2016 | 95.5 mm (3.8 in) |
| 2017 | 103.9 mm (4.1 in) |
| 2018 | 80.0 mm (3.1 in) |
| 2019 | 80.0 mm (3.1 in) |
| 2020 | 56.6 mm (2.2 in) |
| 2021 | 68.6 mm (2.7 in) |
| 2022 | 62.2 mm (2.4 in) |
| 2023 | 88.1 mm (3.5 in) |
| 2024 | 166.1 mm (6.5 in) |
| 2025 | 91.4 mm (3.6 in) |
| 2026 | 63.0 mm (2.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1919 | 81.2 mm (3.2 in) |
| 1920 | 63.5 mm (2.5 in) |
| 1921 | 158.5 mm (6.2 in) |
| 1922 | 67.6 mm (2.7 in) |
| 1923 | 111.6 mm (4.4 in) |
| 1924 | 110.0 mm (4.3 in) |
| 1925 | 63.6 mm (2.5 in) |
| 1926 | 78.0 mm (3.1 in) |
| 1927 | 185.5 mm (7.3 in) |
| 1928 | 116.3 mm (4.6 in) |
| 1929 | 115.6 mm (4.6 in) |
| 1930 | 154.0 mm (6.1 in) |
| 1931 | 110.7 mm (4.4 in) |
| 1932 | 110.7 mm (4.4 in) |
| 1933 | 116.8 mm (4.6 in) |
| 1934 | 113.8 mm (4.5 in) |
| 1935 | 157.2 mm (6.2 in) |
| 1936 | 78.2 mm (3.1 in) |
| 1937 | 114.8 mm (4.5 in) |
| 1938 | 214.1 mm (8.4 in) |
| 1939 | 159.0 mm (6.3 in) |
| 1940 | 88.4 mm (3.5 in) |
| 1941 | 110.0 mm (4.3 in) |
| 1942 | 126.0 mm (5.0 in) |
| 1943 | 88.4 mm (3.5 in) |
| 1944 | 102.1 mm (4.0 in) |
| 1945 | 218.5 mm (8.6 in) |
| 1946 | 132.8 mm (5.2 in) |
| 1947 | 107.5 mm (4.2 in) |
| 1948 | 127.2 mm (5.0 in) |
| 1949 | 159.5 mm (6.3 in) |
| 1950 | 107.7 mm (4.2 in) |
| 1951 | 99.8 mm (3.9 in) |
| 1952 | 110.8 mm (4.4 in) |
| 1953 | 111.4 mm (4.4 in) |
| 1954 | 122.1 mm (4.8 in) |
| 1955 | 89.7 mm (3.5 in) |
| 1956 | 155.1 mm (6.1 in) |
| 1957 | 194.5 mm (7.7 in) |
| 1958 | 169.5 mm (6.7 in) |
| 1959 | 119.4 mm (4.7 in) |
| 1960 | 101.6 mm (4.0 in) |
| 1961 | 118.8 mm (4.7 in) |
| 1962 | 116.0 mm (4.6 in) |
| 1963 | 67.0 mm (2.6 in) |
| 1964 | 100.4 mm (4.0 in) |
| 1965 | 137.9 mm (5.4 in) |
| 1966 | 163.7 mm (6.4 in) |
| 1967 | 105.2 mm (4.1 in) |
| 1968 | 198.2 mm (7.8 in) |
| 1969 | 136.4 mm (5.4 in) |
| 1970 | 239.8 mm (9.4 in) |
| 1971 | 149.6 mm (5.9 in) |
| 1972 | 122.6 mm (4.8 in) |
| 1973 | 147.8 mm (5.8 in) |
| 1974 | 150.6 mm (5.9 in) |
| 1975 | 126.0 mm (5.0 in) |
| 1976 | 80.2 mm (3.2 in) |
| 1977 | 107.7 mm (4.2 in) |
| 1978 | 88.8 mm (3.5 in) |
| 1979 | 134.5 mm (5.3 in) |
| 1980 | 88.4 mm (3.5 in) |
| 1983 | 96.0 mm (3.8 in) |
| 1984 | 155.7 mm (6.1 in) |
| 1985 | 180.7 mm (7.1 in) |
| 1986 | 148.3 mm (5.8 in) |
| 1987 | 125.2 mm (4.9 in) |
| 1988 | 147.7 mm (5.8 in) |
| 1989 | 138.1 mm (5.4 in) |
| 1990 | 77.5 mm (3.1 in) |
| 1991 | 164.1 mm (6.5 in) |
| 1992 | 84.3 mm (3.3 in) |
| 1993 | 196.4 mm (7.7 in) |
| 1994 | 111.8 mm (4.4 in) |
| 1995 | 135.9 mm (5.4 in) |
| 1996 | 99.8 mm (3.9 in) |
| 1997 | 112.2 mm (4.4 in) |
| 1998 | 92.0 mm (3.6 in) |
| 1999 | 97.0 mm (3.8 in) |
| 2000 | 95.2 mm (3.7 in) |
| 2001 | 144.0 mm (5.7 in) |
| 2002 | 112.4 mm (4.4 in) |
| 2003 | 212.3 mm (8.4 in) |
| 2004 | 206.2 mm (8.1 in) |
| 2005 | 88.1 mm (3.5 in) |
| 2006 | 99.0 mm (3.9 in) |
| 2007 | 182.7 mm (7.2 in) |
| 2008 | 183.2 mm (7.2 in) |
| 2009 | 227.9 mm (9.0 in) |
| 2010 | 116.6 mm (4.6 in) |
| 2011 | 186.0 mm (7.3 in) |
| 2012 | 147.6 mm (5.8 in) |
| 2013 | 106.2 mm (4.2 in) |
| 2014 | 115.8 mm (4.6 in) |
| 2015 | 148.1 mm (5.8 in) |
| 2016 | 129.4 mm (5.1 in) |
| 2017 | 160.1 mm (6.3 in) |
| 2018 | 228.6 mm (9.0 in) |
| 2019 | 133.3 mm (5.2 in) |
| 2020 | 87.8 mm (3.5 in) |
| 2021 | 114.0 mm (4.5 in) |
| 2022 | 80.0 mm (3.1 in) |
| 2023 | 133.9 mm (5.3 in) |
| 2024 | 169.1 mm (6.7 in) |
| 2025 | 169.4 mm (6.7 in) |
| 2026 | 67.1 mm (2.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1919 | 30 days |
| 1920 | 35 days |
| 1921 | 27 days |
| 1922 | 25 days |
| 1923 | 29 days |
| 1924 | 28 days |
| 1925 | 38 days |
| 1926 | 22 days |
| 1927 | 29 days |
| 1928 | 34 days |
| 1929 | 37 days |
| 1930 | 37 days |
| 1931 | 40 days |
| 1932 | 21 days |
| 1933 | 16 days |
| 1934 | 26 days |
| 1935 | 19 days |
| 1936 | 44 days |
| 1937 | 23 days |
| 1938 | 22 days |
| 1939 | 23 days |
| 1940 | 20 days |
| 1941 | 14 days |
| 1942 | 28 days |
| 1943 | 26 days |
| 1944 | 27 days |
| 1945 | 21 days |
| 1946 | 30 days |
| 1947 | 29 days |
| 1948 | 19 days |
| 1949 | 21 days |
| 1950 | 17 days |
| 1951 | 23 days |
| 1952 | 33 days |
| 1953 | 40 days |
| 1954 | 19 days |
| 1955 | 29 days |
| 1956 | 23 days |
| 1957 | 17 days |
| 1958 | 22 days |
| 1959 | 20 days |
| 1960 | 21 days |
| 1961 | 14 days |
| 1962 | 23 days |
| 1963 | 35 days |
| 1964 | 20 days |
| 1965 | 32 days |
| 1966 | 31 days |
| 1967 | 25 days |
| 1968 | 17 days |
| 1969 | 33 days |
| 1970 | 28 days |
| 1971 | 26 days |
| 1972 | 30 days |
| 1973 | 23 days |
| 1974 | 26 days |
| 1975 | 34 days |
| 1976 | 29 days |
| 1977 | 38 days |
| 1978 | 17 days |
| 1979 | 30 days |
| 1980 | 36 days |
| 1983 | 27 days |
| 1984 | 18 days |
| 1985 | 19 days |
| 1986 | 26 days |
| 1987 | 19 days |
| 1988 | 20 days |
| 1989 | 14 days |
| 1990 | 11 days |
| 1991 | 19 days |
| 1992 | 21 days |
| 1993 | 23 days |
| 1994 | 15 days |
| 1995 | 19 days |
| 1996 | 22 days |
| 1997 | 15 days |
| 1998 | 22 days |
| 1999 | 27 days |
| 2000 | 41 days |
| 2001 | 19 days |
| 2002 | 21 days |
| 2003 | 22 days |
| 2004 | 39 days |
| 2005 | 41 days |
| 2006 | 33 days |
| 2007 | 48 days |
| 2008 | 20 days |
| 2009 | 16 days |
| 2010 | 23 days |
| 2011 | 35 days |
| 2012 | 26 days |
| 2013 | 22 days |
| 2014 | 21 days |
| 2015 | 28 days |
| 2016 | 20 days |
| 2017 | 21 days |
| 2018 | 13 days |
| 2019 | 16 days |
| 2020 | 28 days |
| 2021 | 15 days |
| 2022 | 35 days |
| 2023 | 26 days |
| 2024 | 28 days |
| 2025 | 23 days |
| 2026 | 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
84 years with a frostAcross 84 years with a frost, the median last spring frost at Morrilton falls on 29 March and the median first autumn frost on 3 November, which leaves a median of 219 days between them.
In 1995 to 2025 the median growing season was 210 days. That is 15 days fewer than in 1922 to 1961.
Fitted over all years, the growing season changes by -1.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1922 to 1961) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 29 March | 25 March | 4 April | 10 days later | +1.1 days per decade |
| First autumn frost | 3 November | 5 November | 1 November | 4 days earlier | -0.7 days per decade |
| Growing days | 219 days | 225 days | 210 days | 15 days fewer | -1.8 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
92 years, 1922 to 2025A day with at least 84.1 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 169.2 mm (6.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 84.1 mm (3.3 in) | |
| 5 years | 106.5 mm (4.2 in) | |
| 10 years | 121.5 mm (4.8 in) | |
| 25 years | 140.6 mm (5.5 in) | |
| 50 years | 154.9 mm (6.1 in) | |
| 100 years | 169.2 mm (6.7 in) | Longer than the 92 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, 92 years of values from 1922 to 2025.
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: 180.3 mm (7.1 in) in 2003; 166.1 mm (6.5 in) in 2024; 154.4 mm (6.1 in) in 1957.
Station Changes
3 suspected3 changes were suspected in the annual mean temperature of Morrilton, at 1950, 1987 and 2006. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1950 ran 0.5 C (0.8 F) higher than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 0.5 C (0.9 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2006 ran 0.5 C (0.9 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1950 | +0.5 | +0.8 | possible | 5 |
| 1987 | -0.5 | -0.9 | possible | 5 |
| 2006 | +0.5 | +0.9 | likely | 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.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Morrilton had a mean temperature of 16.5 C (61.6 F) and 1,351.0 mm (53.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Memphis Intl AP (United States, 253 km away), Saint Charles (United States, 174 km away) and Hernando (United States, 254 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Memphis Intl AP | United States | 253 km (157 mi) | 16.7 C (62.0 F) | 1,324.1 mm (52.1 in) | 0.55 |
| Saint Charles | United States | 174 km (108 mi) | 16.4 C (61.5 F) | 1,268.9 mm (50.0 in) | 0.58 |
| Hernando | United States | 254 km (158 mi) | 16.4 C (61.6 F) | 1,319.4 mm (51.9 in) | 0.60 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
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.
Data as of . Last revised (2026-10-13).