Keo Weather Records (USC00033862)
Record envelope, standing records and threshold days for Keo (USC00033862), Arkansas, United States, with 78 years of record.
Key Facts for Keo
- Keo (USC00033862) is a weather station in Arkansas, United States at 34.60 latitude and -91.99 longitude, 70 m (231 ft) above sea level.
- The station reports from 1948 to 2025, 78 years of record.
- 1,464 records set at Keo still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Keo set a daily record precipitation of 55.9 mm (2.2 in) on 29 December 2024.
About the Station
- Location: Arkansas, United States, 34.60 latitude, -91.99 longitude.
- Elevation: 70 m (231 ft).
- Period of record: 1948 to 2025, 78 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 27.2 C (81.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Feb | 28.3 C (82.9 F) | -19.4 C (-2.9 F) | n/a | n/a |
| Mar | 32.8 C (91.0 F) | -11.1 C (12.0 F) | n/a | n/a |
| Apr | 33.9 C (93.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| May | 35.6 C (96.1 F) | 3.3 C (37.9 F) | n/a | n/a |
| Jun | 39.4 C (102.9 F) | 8.9 C (48.0 F) | n/a | n/a |
| Jul | 41.1 C (106.0 F) | 12.2 C (54.0 F) | n/a | n/a |
| Aug | 41.7 C (107.1 F) | 10.0 C (50.0 F) | n/a | n/a |
| Sep | 39.4 C (102.9 F) | 1.1 C (34.0 F) | n/a | n/a |
| Oct | 35.0 C (95.0 F) | -4.4 C (24.1 F) | n/a | n/a |
| Nov | 31.1 C (88.0 F) | -9.4 C (15.1 F) | n/a | n/a |
| Dec | 27.2 C (81.0 F) | -20.0 C (-4.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 19 |
| 1949 | 18 |
| 1950 | 39 |
| 1951 | 39 |
| 1952 | 54 |
| 1953 | 49 |
| 1954 | 70 |
| 1955 | 31 |
| 1956 | 21 |
| 1957 | 18 |
| 1958 | 21 |
| 1959 | 18 |
| 1960 | 22 |
| 1961 | 27 |
| 1962 | 19 |
| 1963 | 26 |
| 1964 | 22 |
| 1965 | 16 |
| 1966 | 24 |
| 1967 | 28 |
| 1968 | 12 |
| 1969 | 11 |
| 1970 | 21 |
| 1971 | 14 |
| 1972 | 20 |
| 1973 | 5 |
| 1974 | 21 |
| 1975 | 14 |
| 1976 | 15 |
| 1977 | 11 |
| 1978 | 7 |
| 1979 | 10 |
| 1980 | 29 |
| 1981 | 10 |
| 1982 | 19 |
| 1983 | 22 |
| 1984 | 22 |
| 1985 | 18 |
| 1986 | 25 |
| 1987 | 20 |
| 1988 | 16 |
| 1989 | 34 |
| 1990 | 15 |
| 1991 | 18 |
| 1992 | 13 |
| 1993 | 12 |
| 1994 | 10 |
| 1995 | 15 |
| 1996 | 15 |
| 1997 | 13 |
| 1998 | 27 |
| 1999 | 12 |
| 2000 | 23 |
| 2001 | 10 |
| 2002 | 18 |
| 2003 | 13 |
| 2004 | 13 |
| 2005 | 8 |
| 2006 | 11 |
| 2007 | 9 |
| 2008 | 13 |
| 2009 | 8 |
| 2010 | 13 |
| 2011 | 26 |
| 2012 | 9 |
| 2013 | 15 |
| 2014 | 33 |
| 2015 | 14 |
| 2016 | 10 |
| 2017 | 9 |
| 2018 | 21 |
| 2019 | 15 |
| 2020 | 9 |
| 2021 | 27 |
| 2022 | 14 |
| 2023 | 6 |
| 2024 | 10 |
All-Time Record Progression
7 new records| Date | Kind | Detail |
|---|---|---|
| 1980-07-17 | Record high minimum temperature | Record high minimum temperature 26.1 C (79.0 F) |
| 1983-12-25 | Record low maximum temperature | Record low maximum temperature -10.6 C (12.9 F) |
| 1986-06-07 | Record high minimum temperature | Record high minimum temperature 29.4 C (84.9 F) |
| 1988-01-07 | Record snow depth | Record snow depth 25.4 cm (10.0 in) |
| 2021-02-16 | Record low maximum temperature | Record low maximum temperature -11.1 C (12.0 F) |
| 2021-02-18 | Record daily snowfall | Record daily snowfall 26.4 cm (10.4 in) |
| 2021-02-18 | Record snow depth | Record snow depth 45.7 cm (18.0 in) |
Wettest Day of Each Month
May: 240.0 mm (9.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 96.5 mm (3.8 in) | 10 January 1975 |
| Feb | 116.8 mm (4.6 in) | 11 February 1965 |
| Mar | 114.3 mm (4.5 in) | 1 March 2018 |
| Apr | 152.4 mm (6.0 in) | 5 April 1997 |
| May | 240.0 mm (9.4 in) | 27 May 1955 |
| Jun | 197.4 mm (7.8 in) | 3 June 1989 |
| Jul | 130.3 mm (5.1 in) | 6 July 2005 |
| Aug | 120.7 mm (4.8 in) | 13 August 1966 |
| Sep | 101.1 mm (4.0 in) | 13 September 1978 |
| Oct | 142.5 mm (5.6 in) | 9 October 1990 |
| Nov | 109.5 mm (4.3 in) | 24 November 2000 |
| Dec | 191.5 mm (7.5 in) | 24 December 2009 |
Period of Record Coverage
1948 to 2025| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 360 | 98% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 362 | 99% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 337 | 92% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 363 | 99% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 361 | 99% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 364 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 364 | 99% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 360 | 99% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 359 | 98% | Yes |
| 2018 | 360 | 99% | Yes |
| 2019 | 361 | 99% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 352 | 96% | Yes |
| 2022 | 356 | 98% | Yes |
| 2023 | 174 | 48% | No |
| 2024 | 230 | 63% | No |
| 2025 | 8 | 2% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 29 December 2024 | Keo, US | daily rain | 55.9 mm (2.2 in) | 3.6 mm (0.14 in) | 55 years | 24 of 100 (Routine) |
| 24 July 2024 | Keo, US | daily low max | 26.7 C (80.1 F) | 0.5 C (0.9 F) | 53 years | 23 of 100 (Routine) |
| 23 July 2024 | Keo, US | daily low max | 27.2 C (81.0 F) | 1.1 C (2.0 F) | 54 years | 26 of 100 (Routine) |
| 9 July 2024 | Keo, US | daily rain | 71.6 mm (2.8 in) | 44.9 mm (1.8 in) | 60 years | 53 of 100 (Notable) |
| 9 July 2024 | Keo, US | daily low max | 27.2 C (81.0 F) | 1.1 C (2.0 F) | 63 years | 28 of 100 (Routine) |
| 25 June 2024 | Keo, US | daily high min | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 72 years | 29 of 100 (Routine) |
| 24 June 2024 | Keo, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 2 years | 1 of 100 (Routine) |
| 25 May 2024 | Keo, US | daily rain | 50.8 mm (2.0 in) | 16.8 mm (0.7 in) | 43 years | 28 of 100 (Routine) |
| 8 May 2024 | Keo, US | daily rain | 39.1 mm (1.5 in) | 12.7 mm (0.5 in) | 12 years | 17 of 100 (Routine) |
| 21 April 2024 | Keo, US | daily low max | 13.3 C (55.9 F) | 0.6 C (1.1 F) | 33 years | 17 of 100 (Routine) |
| 15 March 2024 | Keo, US | daily rain | 34.0 mm (1.3 in) | 10.9 mm (0.4 in) | 17 years | 18 of 100 (Routine) |
| 24 January 2024 | Keo, US | daily rain | 47.0 mm (1.9 in) | 4.1 mm (0.16 in) | 74 years | 31 of 100 (Routine) |
| 17 January 2024 | Keo, US | daily low max | -8.3 C (17.1 F) | 0.5 C (0.9 F) | 41 years | 19 of 100 (Routine) |
| 16 January 2024 | Keo, US | daily low max | -9.4 C (15.1 F) | 6.1 C (11.0 F) | 14 years | 19 of 100 (Routine) |
| 16 January 2024 | Keo, US | daily low min | -13.9 C (7.0 F) | 1.1 C (2.0 F) | 5 years | 9 of 100 (Routine) |
| 15 January 2024 | Keo, US | daily snowfall | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 76 years | 40 of 100 (Notable) |
| 15 January 2024 | Keo, US | daily low max | -7.8 C (18.0 F) | 6.1 C (11.0 F) | 45 years | 28 of 100 (Routine) |
| 15 January 2024 | Keo, US | daily low min | -13.3 C (8.1 F) | 1.6 C (2.9 F) | 12 years | 12 of 100 (Routine) |
| 10 July 2023 | Keo, US | daily low max | 26.1 C (79.0 F) | 0.6 C (1.1 F) | 26 years | 17 of 100 (Routine) |
| 29 June 2023 | Keo, US | daily high min | 26.7 C (80.1 F) | 1.1 C (2.0 F) | 42 years | 22 of 100 (Routine) |
Climate Trend
74 complete years, 1948 to 2022| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1948 | 16.4 C | -0.19 C |
| 1949 | 17.1 C | +0.51 C |
| 1950 | 16.4 C | -0.15 C |
| 1951 | 16.5 C | -0.06 C |
| 1952 | 16.9 C | +0.30 C |
| 1953 | 17.3 C | +0.69 C |
| 1954 | 17.8 C | +1.25 C |
| 1955 | 16.8 C | +0.24 C |
| 1956 | 16.8 C | +0.23 C |
| 1957 | 16.6 C | +0.04 C |
| 1958 | 15.6 C | -1.03 C |
| 1959 | 16.4 C | -0.18 C |
| 1960 | 15.6 C | -0.94 C |
| 1961 | 15.8 C | -0.74 C |
| 1962 | 16.5 C | -0.12 C |
| 1963 | 16.3 C | -0.24 C |
| 1964 | 16.9 C | +0.29 C |
| 1965 | 16.9 C | +0.30 C |
| 1966 | 15.8 C | -0.82 C |
| 1967 | 16.1 C | -0.49 C |
| 1968 | 15.4 C | -1.22 C |
| 1970 | 16.4 C | -0.17 C |
| 1971 | 16.7 C | +0.12 C |
| 1972 | 16.6 C | +0.04 C |
| 1973 | 16.8 C | +0.26 C |
| 1974 | 16.8 C | +0.19 C |
| 1975 | 16.3 C | -0.26 C |
| 1976 | 15.9 C | -0.73 C |
| 1977 | 16.9 C | +0.27 C |
| 1978 | 15.7 C | -0.92 C |
| 1979 | 15.4 C | -1.17 C |
| 1980 | 16.6 C | 0.00 C |
| 1981 | 16.5 C | -0.04 C |
| 1982 | 16.4 C | -0.19 C |
| 1983 | 15.7 C | -0.85 C |
| 1984 | 16.6 C | +0.06 C |
| 1985 | 16.6 C | -0.03 C |
| 1986 | 17.4 C | +0.85 C |
| 1987 | 17.3 C | +0.69 C |
| 1988 | 16.5 C | -0.13 C |
| 1989 | 16.0 C | -0.60 C |
| 1990 | 17.6 C | +1.04 C |
| 1991 | 17.3 C | +0.71 C |
| 1992 | 16.6 C | -0.03 C |
| 1993 | 16.3 C | -0.32 C |
| 1994 | 16.7 C | +0.13 C |
| 1995 | 16.8 C | +0.20 C |
| 1996 | 16.4 C | -0.22 C |
| 1997 | 16.4 C | -0.15 C |
| 1998 | 18.2 C | +1.63 C |
| 1999 | 17.7 C | +1.08 C |
| 2000 | 17.0 C | +0.40 C |
| 2001 | 17.2 C | +0.63 C |
| 2002 | 17.0 C | +0.37 C |
| 2003 | 16.7 C | +0.12 C |
| 2004 | 17.1 C | +0.56 C |
| 2005 | 17.6 C | +0.97 C |
| 2006 | 17.4 C | +0.85 C |
| 2007 | 17.2 C | +0.60 C |
| 2008 | 16.3 C | -0.25 C |
| 2009 | 16.2 C | -0.41 C |
| 2010 | 16.7 C | +0.08 C |
| 2011 | 16.4 C | -0.19 C |
| 2012 | 17.4 C | +0.84 C |
| 2013 | 15.4 C | -1.21 C |
| 2014 | 14.8 C | -1.81 C |
| 2015 | 16.4 C | -0.19 C |
| 2016 | 17.2 C | +0.60 C |
| 2017 | 17.1 C | +0.48 C |
| 2018 | 16.3 C | -0.32 C |
| 2019 | 16.5 C | -0.10 C |
| 2020 | 16.2 C | -0.34 C |
| 2021 | 16.2 C | -0.40 C |
| 2022 | 16.4 C | -0.18 C |
The fitted trend in annual mean temperature here over 1948 to 2022 is 0.02 C (-0.05 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.08 to 0.16) per decade. The slope is a straight line fitted to 74 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.02 C (-0.05 to 0.09) per decade | 0.04 F (-0.08 to 0.16) per decade | 1948 to 2022 | 74 | Not clearly different from zero |
| Mean daily maximum | -0.2 C (-0.2 to -0.1) per decade | -0.3 F (-0.4 to -0.2) per decade | 1948 to 2022 | 74 | Fall |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1948 to 2022 | 74 | 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
1948 to 2025| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.7 C (107.1 F) | 1954 | 36.7 C (98.1 F) | 78 |
| Coldest night (TNn) | -20.6 C (-5.1 F) | 1962 | -10.8 C (12.5 F) | 78 |
| Wettest day (Rx1day) | 240.0 mm (9.4 in) | 1955 | 93.1 mm (3.7 in) | 78 |
| Wettest five days (Rx5day) | 255.2 mm (10.0 in) | 2009 | 134.2 mm (5.3 in) | 78 |
| Longest dry spell (CDD) | 50 days | 1954 | 22 days | 78 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 36.7 C (98.1 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 36.1 C (97.0 F) |
| 1951 | 39.4 C (102.9 F) |
| 1952 | 40.0 C (104.0 F) |
| 1953 | 38.3 C (100.9 F) |
| 1954 | 41.7 C (107.1 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 38.9 C (102.0 F) |
| 1957 | 37.2 C (99.0 F) |
| 1958 | 36.7 C (98.1 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 37.8 C (100.0 F) |
| 1961 | 36.1 C (97.0 F) |
| 1962 | 37.8 C (100.0 F) |
| 1963 | 37.2 C (99.0 F) |
| 1964 | 40.6 C (105.1 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 38.9 C (102.0 F) |
| 1967 | 33.9 C (93.0 F) |
| 1968 | 33.9 C (93.0 F) |
| 1969 | 40.0 C (104.0 F) |
| 1970 | 38.9 C (102.0 F) |
| 1971 | 37.8 C (100.0 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 38.3 C (100.9 F) |
| 1975 | 35.6 C (96.1 F) |
| 1976 | 36.7 C (98.1 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 37.8 C (100.0 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 40.6 C (105.1 F) |
| 1981 | 37.2 C (99.0 F) |
| 1982 | 37.2 C (99.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 40.6 C (105.1 F) |
| 1987 | 38.3 C (100.9 F) |
| 1988 | 37.8 C (100.0 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 37.2 C (99.0 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 33.9 C (93.0 F) |
| 1993 | 38.3 C (100.9 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 36.7 C (98.1 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 38.3 C (100.9 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 40.0 C (104.0 F) |
| 2001 | 35.6 C (96.1 F) |
| 2002 | 35.0 C (95.0 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 35.6 C (96.1 F) |
| 2005 | 36.1 C (97.0 F) |
| 2006 | 37.2 C (99.0 F) |
| 2007 | 37.2 C (99.0 F) |
| 2008 | 37.8 C (100.0 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 37.8 C (100.0 F) |
| 2011 | 41.1 C (106.0 F) |
| 2012 | 41.1 C (106.0 F) |
| 2013 | 36.7 C (98.1 F) |
| 2014 | 34.4 C (93.9 F) |
| 2015 | 36.7 C (98.1 F) |
| 2016 | 36.7 C (98.1 F) |
| 2017 | 36.7 C (98.1 F) |
| 2018 | 36.7 C (98.1 F) |
| 2019 | 35.6 C (96.1 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 36.7 C (98.1 F) |
| 2023 | 35.0 C (95.0 F) |
| 2024 | 35.0 C (95.0 F) |
| 2025 | 17.2 C (63.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -12.8 C (9.0 F) |
| 1949 | -17.8 C (0.0 F) |
| 1950 | -12.8 C (9.0 F) |
| 1951 | -19.4 C (-2.9 F) |
| 1952 | -5.6 C (21.9 F) |
| 1953 | -11.7 C (10.9 F) |
| 1954 | -10.0 C (14.0 F) |
| 1955 | -11.1 C (12.0 F) |
| 1956 | -7.8 C (18.0 F) |
| 1957 | -11.1 C (12.0 F) |
| 1958 | -15.6 C (3.9 F) |
| 1959 | -12.8 C (9.0 F) |
| 1960 | -8.9 C (16.0 F) |
| 1961 | -10.6 C (12.9 F) |
| 1962 | -20.6 C (-5.1 F) |
| 1963 | -20.0 C (-4.0 F) |
| 1964 | -11.1 C (12.0 F) |
| 1965 | -11.1 C (12.0 F) |
| 1966 | -18.3 C (-0.9 F) |
| 1967 | -11.7 C (10.9 F) |
| 1968 | -13.3 C (8.1 F) |
| 1969 | -9.4 C (15.1 F) |
| 1970 | -14.4 C (6.1 F) |
| 1971 | -10.6 C (12.9 F) |
| 1972 | -11.7 C (10.9 F) |
| 1973 | -10.0 C (14.0 F) |
| 1974 | -9.4 C (15.1 F) |
| 1975 | -9.4 C (15.1 F) |
| 1976 | -13.3 C (8.1 F) |
| 1977 | -15.6 C (3.9 F) |
| 1978 | -10.0 C (14.0 F) |
| 1979 | -13.9 C (7.0 F) |
| 1980 | -10.0 C (14.0 F) |
| 1981 | -12.8 C (9.0 F) |
| 1982 | -18.3 C (-0.9 F) |
| 1983 | -16.7 C (1.9 F) |
| 1984 | -15.0 C (5.0 F) |
| 1985 | -18.9 C (-2.0 F) |
| 1986 | -10.0 C (14.0 F) |
| 1987 | -5.0 C (23.0 F) |
| 1988 | -17.8 C (0.0 F) |
| 1989 | -17.8 C (0.0 F) |
| 1990 | -10.0 C (14.0 F) |
| 1991 | -6.7 C (19.9 F) |
| 1992 | -8.3 C (17.1 F) |
| 1993 | -8.9 C (16.0 F) |
| 1994 | -10.0 C (14.0 F) |
| 1995 | -10.0 C (14.0 F) |
| 1996 | -15.0 C (5.0 F) |
| 1997 | -10.6 C (12.9 F) |
| 1998 | -7.2 C (19.0 F) |
| 1999 | -9.4 C (15.1 F) |
| 2000 | -10.0 C (14.0 F) |
| 2001 | -11.7 C (10.9 F) |
| 2002 | -8.3 C (17.1 F) |
| 2003 | -11.1 C (12.0 F) |
| 2004 | -10.0 C (14.0 F) |
| 2005 | -8.9 C (16.0 F) |
| 2006 | -9.4 C (15.1 F) |
| 2007 | -7.2 C (19.0 F) |
| 2008 | -10.0 C (14.0 F) |
| 2009 | -9.4 C (15.1 F) |
| 2010 | -11.1 C (12.0 F) |
| 2011 | -14.4 C (6.1 F) |
| 2012 | -6.1 C (21.0 F) |
| 2013 | -7.2 C (19.0 F) |
| 2014 | -11.7 C (10.9 F) |
| 2015 | -12.2 C (10.0 F) |
| 2016 | -10.0 C (14.0 F) |
| 2017 | -10.6 C (12.9 F) |
| 2018 | -15.6 C (3.9 F) |
| 2019 | -7.2 C (19.0 F) |
| 2020 | -5.0 C (23.0 F) |
| 2021 | -19.4 C (-2.9 F) |
| 2022 | -15.6 C (3.9 F) |
| 2023 | -3.3 C (26.1 F) |
| 2024 | -14.4 C (6.1 F) |
| 2025 | -5.6 C (21.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 104.1 mm (4.1 in) |
| 1949 | 108.0 mm (4.3 in) |
| 1950 | 115.1 mm (4.5 in) |
| 1951 | 71.1 mm (2.8 in) |
| 1952 | 69.1 mm (2.7 in) |
| 1953 | 53.8 mm (2.1 in) |
| 1954 | 50.8 mm (2.0 in) |
| 1955 | 240.0 mm (9.4 in) |
| 1956 | 63.0 mm (2.5 in) |
| 1957 | 99.3 mm (3.9 in) |
| 1958 | 73.7 mm (2.9 in) |
| 1959 | 74.2 mm (2.9 in) |
| 1960 | 191.8 mm (7.6 in) |
| 1961 | 82.8 mm (3.3 in) |
| 1962 | 94.0 mm (3.7 in) |
| 1963 | 56.9 mm (2.2 in) |
| 1964 | 84.8 mm (3.3 in) |
| 1965 | 126.2 mm (5.0 in) |
| 1966 | 120.7 mm (4.8 in) |
| 1967 | 62.0 mm (2.4 in) |
| 1968 | 60.2 mm (2.4 in) |
| 1969 | 88.4 mm (3.5 in) |
| 1970 | 65.0 mm (2.6 in) |
| 1971 | 100.8 mm (4.0 in) |
| 1972 | 61.2 mm (2.4 in) |
| 1973 | 80.5 mm (3.2 in) |
| 1974 | 79.2 mm (3.1 in) |
| 1975 | 96.5 mm (3.8 in) |
| 1976 | 99.8 mm (3.9 in) |
| 1977 | 59.7 mm (2.4 in) |
| 1978 | 101.1 mm (4.0 in) |
| 1979 | 110.5 mm (4.4 in) |
| 1980 | 68.8 mm (2.7 in) |
| 1981 | 69.6 mm (2.7 in) |
| 1982 | 102.1 mm (4.0 in) |
| 1983 | 117.6 mm (4.6 in) |
| 1984 | 125.2 mm (4.9 in) |
| 1985 | 105.2 mm (4.1 in) |
| 1986 | 91.4 mm (3.6 in) |
| 1987 | 95.0 mm (3.7 in) |
| 1988 | 102.6 mm (4.0 in) |
| 1989 | 197.4 mm (7.8 in) |
| 1990 | 142.5 mm (5.6 in) |
| 1991 | 93.0 mm (3.7 in) |
| 1992 | 59.4 mm (2.3 in) |
| 1993 | 60.2 mm (2.4 in) |
| 1994 | 80.8 mm (3.2 in) |
| 1995 | 94.0 mm (3.7 in) |
| 1996 | 85.1 mm (3.4 in) |
| 1997 | 152.4 mm (6.0 in) |
| 1998 | 96.5 mm (3.8 in) |
| 1999 | 68.3 mm (2.7 in) |
| 2000 | 109.5 mm (4.3 in) |
| 2001 | 142.2 mm (5.6 in) |
| 2002 | 52.6 mm (2.1 in) |
| 2003 | 67.3 mm (2.6 in) |
| 2004 | 90.2 mm (3.6 in) |
| 2005 | 130.3 mm (5.1 in) |
| 2006 | 93.5 mm (3.7 in) |
| 2007 | 73.7 mm (2.9 in) |
| 2008 | 102.6 mm (4.0 in) |
| 2009 | 191.5 mm (7.5 in) |
| 2010 | 57.4 mm (2.3 in) |
| 2011 | 94.0 mm (3.7 in) |
| 2012 | 59.9 mm (2.4 in) |
| 2013 | 99.1 mm (3.9 in) |
| 2014 | 56.1 mm (2.2 in) |
| 2015 | 94.5 mm (3.7 in) |
| 2016 | 139.7 mm (5.5 in) |
| 2017 | 93.2 mm (3.7 in) |
| 2018 | 114.3 mm (4.5 in) |
| 2019 | 72.9 mm (2.9 in) |
| 2020 | 105.9 mm (4.2 in) |
| 2021 | 98.0 mm (3.9 in) |
| 2022 | 69.6 mm (2.7 in) |
| 2023 | 63.5 mm (2.5 in) |
| 2024 | 71.6 mm (2.8 in) |
| 2025 | 6.4 mm (0.25 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 113.5 mm (4.5 in) |
| 1949 | 144.2 mm (5.7 in) |
| 1950 | 152.9 mm (6.0 in) |
| 1951 | 129.1 mm (5.1 in) |
| 1952 | 69.1 mm (2.7 in) |
| 1953 | 88.2 mm (3.5 in) |
| 1954 | 93.9 mm (3.7 in) |
| 1955 | 248.9 mm (9.8 in) |
| 1956 | 133.1 mm (5.2 in) |
| 1957 | 163.3 mm (6.4 in) |
| 1958 | 158.8 mm (6.3 in) |
| 1959 | 164.8 mm (6.5 in) |
| 1960 | 247.9 mm (9.8 in) |
| 1961 | 123.4 mm (4.9 in) |
| 1962 | 172.7 mm (6.8 in) |
| 1963 | 67.8 mm (2.7 in) |
| 1964 | 159.0 mm (6.3 in) |
| 1965 | 170.7 mm (6.7 in) |
| 1966 | 195.4 mm (7.7 in) |
| 1967 | 120.1 mm (4.7 in) |
| 1968 | 144.0 mm (5.7 in) |
| 1969 | 148.6 mm (5.9 in) |
| 1970 | 130.3 mm (5.1 in) |
| 1971 | 129.3 mm (5.1 in) |
| 1972 | 168.7 mm (6.6 in) |
| 1973 | 153.4 mm (6.0 in) |
| 1974 | 140.2 mm (5.5 in) |
| 1975 | 109.7 mm (4.3 in) |
| 1976 | 99.8 mm (3.9 in) |
| 1977 | 98.3 mm (3.9 in) |
| 1978 | 130.0 mm (5.1 in) |
| 1979 | 144.5 mm (5.7 in) |
| 1980 | 126.0 mm (5.0 in) |
| 1981 | 100.8 mm (4.0 in) |
| 1982 | 201.1 mm (7.9 in) |
| 1983 | 142.2 mm (5.6 in) |
| 1984 | 177.3 mm (7.0 in) |
| 1985 | 158.6 mm (6.2 in) |
| 1986 | 106.6 mm (4.2 in) |
| 1987 | 215.7 mm (8.5 in) |
| 1988 | 133.6 mm (5.3 in) |
| 1989 | 240.3 mm (9.5 in) |
| 1990 | 180.6 mm (7.1 in) |
| 1991 | 156.2 mm (6.1 in) |
| 1992 | 97.7 mm (3.8 in) |
| 1993 | 108.8 mm (4.3 in) |
| 1994 | 112.4 mm (4.4 in) |
| 1995 | 94.0 mm (3.7 in) |
| 1996 | 120.9 mm (4.8 in) |
| 1997 | 176.3 mm (6.9 in) |
| 1998 | 129.5 mm (5.1 in) |
| 1999 | 80.5 mm (3.2 in) |
| 2000 | 122.5 mm (4.8 in) |
| 2001 | 173.2 mm (6.8 in) |
| 2002 | 88.4 mm (3.5 in) |
| 2003 | 81.9 mm (3.2 in) |
| 2004 | 136.2 mm (5.4 in) |
| 2005 | 158.2 mm (6.2 in) |
| 2006 | 97.1 mm (3.8 in) |
| 2007 | 125.5 mm (4.9 in) |
| 2008 | 134.8 mm (5.3 in) |
| 2009 | 255.2 mm (10.0 in) |
| 2010 | 81.3 mm (3.2 in) |
| 2011 | 162.1 mm (6.4 in) |
| 2012 | 111.0 mm (4.4 in) |
| 2013 | 187.2 mm (7.4 in) |
| 2014 | 91.9 mm (3.6 in) |
| 2015 | 130.6 mm (5.1 in) |
| 2016 | 165.9 mm (6.5 in) |
| 2017 | 135.7 mm (5.3 in) |
| 2018 | 217.1 mm (8.5 in) |
| 2019 | 113.5 mm (4.5 in) |
| 2020 | 164.9 mm (6.5 in) |
| 2021 | 222.6 mm (8.8 in) |
| 2022 | 104.7 mm (4.1 in) |
| 2023 | 92.5 mm (3.6 in) |
| 2024 | 149.7 mm (5.9 in) |
| 2025 | 55.9 mm (2.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 14 days |
| 1949 | 18 days |
| 1950 | 24 days |
| 1951 | 22 days |
| 1952 | 24 days |
| 1953 | 23 days |
| 1954 | 50 days |
| 1955 | 30 days |
| 1956 | 17 days |
| 1957 | 22 days |
| 1958 | 21 days |
| 1959 | 23 days |
| 1960 | 18 days |
| 1961 | 24 days |
| 1962 | 27 days |
| 1963 | 33 days |
| 1964 | 19 days |
| 1965 | 22 days |
| 1966 | 42 days |
| 1967 | 17 days |
| 1968 | 19 days |
| 1969 | 19 days |
| 1970 | 26 days |
| 1971 | 21 days |
| 1972 | 15 days |
| 1973 | 17 days |
| 1974 | 15 days |
| 1975 | 34 days |
| 1976 | 25 days |
| 1977 | 17 days |
| 1978 | 17 days |
| 1979 | 18 days |
| 1980 | 33 days |
| 1981 | 27 days |
| 1982 | 19 days |
| 1983 | 22 days |
| 1984 | 17 days |
| 1985 | 19 days |
| 1986 | 22 days |
| 1987 | 20 days |
| 1988 | 14 days |
| 1989 | 22 days |
| 1990 | 18 days |
| 1991 | 30 days |
| 1992 | 17 days |
| 1993 | 35 days |
| 1994 | 14 days |
| 1995 | 34 days |
| 1996 | 26 days |
| 1997 | 33 days |
| 1998 | 18 days |
| 1999 | 29 days |
| 2000 | 40 days |
| 2001 | 35 days |
| 2002 | 20 days |
| 2003 | 22 days |
| 2004 | 33 days |
| 2005 | 35 days |
| 2006 | 17 days |
| 2007 | 28 days |
| 2008 | 22 days |
| 2009 | 20 days |
| 2010 | 33 days |
| 2011 | 19 days |
| 2012 | 18 days |
| 2013 | 29 days |
| 2014 | 19 days |
| 2015 | 32 days |
| 2016 | 29 days |
| 2017 | 20 days |
| 2018 | 20 days |
| 2019 | 23 days |
| 2020 | 18 days |
| 2021 | 21 days |
| 2022 | 38 days |
| 2023 | 9 days |
| 2024 | 8 days |
| 2025 | 5 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
74 years with a frostAcross 74 years with a frost, the median last spring frost at Keo falls on 23 March and the median first autumn frost on 10 November, which leaves a median of 232 days between them.
In 1993 to 2022 the median growing season was 245 days. That is 22 days more than in 1948 to 1978.
Fitted over all years, the growing season changes by +5.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1948 to 1978) | Recent period (1993 to 2022) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 23 March | 27 March | 14 March | 13 days earlier | -2.7 days per decade |
| First autumn frost | 10 November | 3 November | 16 November | 13 days later | +2.7 days per decade |
| Growing days | 232 days | 223 days | 245 days | 22 days more | +5.5 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
75 years, 1948 to 2022A day with at least 87.7 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 221.3 mm (8.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 87.7 mm (3.5 in) | |
| 5 years | 117.4 mm (4.6 in) | |
| 10 years | 139.3 mm (5.5 in) | |
| 25 years | 169.8 mm (6.7 in) | |
| 50 years | 194.6 mm (7.7 in) | |
| 100 years | 221.3 mm (8.7 in) | Longer than the 75 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, 75 years of values from 1948 to 2022.
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: 240.0 mm (9.4 in) in 1955; 197.4 mm (7.8 in) in 1989; 191.8 mm (7.6 in) in 1960.
Station Changes
3 suspected3 changes were suspected in the annual mean temperature of Keo, at 1958, 2001 and 2011. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1958 ran 0.3 C (0.6 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2001 ran 0.3 C (0.5 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2011 ran 0.5 C (0.9 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1958 | +0.3 | +0.6 | likely | 5 |
| 2001 | +0.3 | +0.5 | likely | 5 |
| 2011 | -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
2008 to 2022 against 1961 to 1990Over 2008 to 2022, Keo had a mean temperature of 16.4 C (61.4 F) and 1,412.8 mm (55.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Tupelo Rgnl AP (United States, 298 km away), Marianna 2 S (United States, 113 km away) and Hope 3 NE (United States, 175 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Tupelo Rgnl AP | United States | 298 km (185 mi) | 16.3 C (61.3 F) | 1,420.0 mm (55.9 in) | 0.43 |
| Marianna 2 S | United States | 113 km (70 mi) | 16.4 C (61.5 F) | 1,341.4 mm (52.8 in) | 0.52 |
| Hope 3 NE | United States | 175 km (109 mi) | 16.4 C (61.4 F) | 1,356.7 mm (53.4 in) | 0.53 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).