Pontotoc Exp STN Weather Records (USC00227111)
Record envelope, standing records and threshold days for Pontotoc Exp STN (USC00227111), Mississippi, United States, with 74 years of record.
Key Facts for Pontotoc Exp STN
- Pontotoc Exp STN (USC00227111) is a weather station in Mississippi, United States at 34.14 latitude and -89.01 longitude, 150 m (492 ft) above sea level.
- The station reports from 1953 to 2026, 74 years of record.
- 1,464 records set at Pontotoc Exp STN still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Pontotoc Exp STN tied a daily record high maximum temperature of 36.7 C (98.1 F) on 20 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Mississippi, United States, 34.14 latitude, -89.01 longitude.
- Elevation: 150 m (492 ft).
- Period of record: 1953 to 2026, 74 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
14 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 26.1 C (79.0 F) | -21.1 C (-6.0 F) | 21.1 C (70.0 F) | -11.7 C (10.9 F) |
| Feb | 28.9 C (84.0 F) | -16.7 C (1.9 F) | 25.0 C (77.0 F) | -10.6 C (12.9 F) |
| Mar | 31.1 C (88.0 F) | -11.1 C (12.0 F) | 30.0 C (86.0 F) | -4.4 C (24.1 F) |
| Apr | 33.9 C (93.0 F) | -4.4 C (24.1 F) | 30.0 C (86.0 F) | 5.6 C (42.1 F) |
| May | 35.6 C (96.1 F) | 1.7 C (35.1 F) | 31.1 C (88.0 F) | 6.1 C (43.0 F) |
| Jun | 38.9 C (102.0 F) | 6.7 C (44.1 F) | 33.9 C (93.0 F) | 16.7 C (62.1 F) |
| Jul | 40.6 C (105.1 F) | 10.6 C (51.1 F) | 36.1 C (97.0 F) | 20.6 C (69.1 F) |
| Aug | 40.0 C (104.0 F) | 8.9 C (48.0 F) | 38.3 C (100.9 F) | 18.3 C (64.9 F) |
| Sep | 38.9 C (102.0 F) | 1.7 C (35.1 F) | 36.7 C (98.1 F) | 21.1 C (70.0 F) |
| Oct | 35.6 C (96.1 F) | -3.3 C (26.1 F) | 32.2 C (90.0 F) | 13.9 C (57.0 F) |
| Nov | 30.6 C (87.1 F) | -11.1 C (12.0 F) | n/a | n/a |
| Dec | 26.1 C (79.0 F) | -21.7 C (-7.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1953 | 32 |
| 1954 | 60 |
| 1955 | 26 |
| 1956 | 13 |
| 1957 | 17 |
| 1958 | 15 |
| 1959 | 14 |
| 1960 | 20 |
| 1961 | 19 |
| 1962 | 30 |
| 1963 | 32 |
| 1964 | 22 |
| 1965 | 28 |
| 1966 | 18 |
| 1967 | 40 |
| 1968 | 19 |
| 1969 | 21 |
| 1970 | 24 |
| 1971 | 17 |
| 1972 | 28 |
| 1973 | 8 |
| 1974 | 27 |
| 1975 | 15 |
| 1976 | 24 |
| 1977 | 25 |
| 1978 | 14 |
| 1979 | 11 |
| 1980 | 38 |
| 1981 | 12 |
| 1982 | 18 |
| 1983 | 30 |
| 1984 | 36 |
| 1985 | 25 |
| 1986 | 25 |
| 1987 | 20 |
| 1988 | 20 |
| 1989 | 39 |
| 1990 | 17 |
| 1991 | 28 |
| 1992 | 11 |
| 1993 | 24 |
| 1994 | 8 |
| 1995 | 9 |
| 1996 | 28 |
| 1997 | 16 |
| 1998 | 22 |
| 1999 | 14 |
| 2000 | 18 |
| 2001 | 7 |
| 2002 | 13 |
| 2003 | 10 |
| 2004 | 19 |
| 2005 | 22 |
| 2006 | 15 |
| 2007 | 17 |
| 2008 | 18 |
| 2009 | 7 |
| 2010 | 25 |
| 2011 | 17 |
| 2012 | 15 |
| 2013 | 20 |
| 2014 | 22 |
| 2015 | 26 |
| 2016 | 17 |
| 2017 | 19 |
| 2018 | 11 |
| 2019 | 16 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 14 |
| 2024 | 15 |
| 2025 | 21 |
| 2026 | 13 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1985-01-21 | Record low maximum temperature | Record low maximum temperature -15.6 C (3.9 F) |
| 1986-07-31 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
| 1989-12-23 | Record low minimum temperature | Record low minimum temperature -21.7 C (-7.1 F) |
| 2023-08-07 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
Wettest Day of Each Month
Mar: 240.0 mm (9.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 116.3 mm (4.6 in) | 23 January 1999 |
| Feb | 154.4 mm (6.1 in) | 19 February 1991 |
| Mar | 240.0 mm (9.4 in) | 21 March 1955 |
| Apr | 118.6 mm (4.7 in) | 12 April 1979 |
| May | 124.2 mm (4.9 in) | 3 May 1997 |
| Jun | 100.1 mm (3.9 in) | 9 June 1959 |
| Jul | 113.5 mm (4.5 in) | 21 July 1953 |
| Aug | 143.5 mm (5.6 in) | 30 August 2005 |
| Sep | 137.7 mm (5.4 in) | 27 September 2002 |
| Oct | 124.0 mm (4.9 in) | 12 October 1970 |
| Nov | 97.3 mm (3.8 in) | 9 November 2000 |
| Dec | 158.8 mm (6.3 in) | 26 December 1982 |
Period of Record Coverage
1953 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1953 | 243 | 67% | No |
| 1954 | 361 | 99% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 363 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 363 | 99% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 359 | 98% | Yes |
| 1970 | 363 | 99% | Yes |
| 1971 | 330 | 90% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 363 | 99% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 360 | 99% | Yes |
| 1999 | 351 | 96% | Yes |
| 2000 | 356 | 97% | Yes |
| 2001 | 357 | 98% | Yes |
| 2002 | 354 | 97% | Yes |
| 2003 | 360 | 99% | Yes |
| 2004 | 359 | 98% | Yes |
| 2005 | 352 | 96% | Yes |
| 2006 | 346 | 95% | Yes |
| 2007 | 358 | 98% | Yes |
| 2008 | 361 | 99% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 355 | 97% | Yes |
| 2011 | 361 | 99% | Yes |
| 2012 | 349 | 95% | Yes |
| 2013 | 355 | 97% | Yes |
| 2014 | 357 | 98% | Yes |
| 2015 | 357 | 98% | Yes |
| 2016 | 347 | 95% | Yes |
| 2017 | 250 | 68% | No |
| 2018 | 200 | 55% | No |
| 2019 | 157 | 43% | No |
| 2020 | 146 | 40% | No |
| 2021 | 61 | 17% | No |
| 2022 | 141 | 39% | No |
| 2023 | 254 | 70% | No |
| 2024 | 325 | 89% | No |
| 2025 | 323 | 88% | No |
| 2026 | 227 | 62% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 20 September 2026 | Pontotoc Exp STN, US | daily high max (Tie, Provisional) | 36.7 C (98.1 F) | tie | 72 years | 7 of 100 (Routine) |
| 18 September 2026 | Pontotoc Exp STN, US | daily high max (Tie, Provisional) | 36.7 C (98.1 F) | tie | 72 years | 7 of 100 (Routine) |
| 9 September 2026 | Pontotoc Exp STN, US | daily high min (Provisional) | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 65 years | 27 of 100 (Routine) |
| 8 September 2026 | Pontotoc Exp STN, US | daily high min (Provisional) | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 65 years | 27 of 100 (Routine) |
| 7 September 2026 | Pontotoc Exp STN, US | daily high min (Provisional) | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 72 years | 29 of 100 (Routine) |
| 18 August 2026 | Pontotoc Exp STN, US | daily high max (Tie, Provisional) | 38.3 C (100.9 F) | tie | 25 years | 3 of 100 (Routine) |
| 29 July 2026 | Pontotoc Exp STN, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 0 years | 1 of 100 (Routine) |
| 25 July 2026 | Pontotoc Exp STN, US | daily high min (Tie) | 23.9 C (75.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 23 July 2026 | Pontotoc Exp STN, US | daily high min | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 52 years | 24 of 100 (Routine) |
| 2 July 2026 | Pontotoc Exp STN, US | daily high min (Tie) | 23.9 C (75.0 F) | tie | 45 years | 5 of 100 (Routine) |
| 27 June 2026 | Pontotoc Exp STN, US | daily high min (Tie) | 23.3 C (73.9 F) | tie | 72 years | 7 of 100 (Routine) |
| 19 June 2026 | Pontotoc Exp STN, US | daily low max (Tie) | 25.0 C (77.0 F) | tie | 52 years | 5 of 100 (Routine) |
| 7 June 2026 | Pontotoc Exp STN, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 17 years | 3 of 100 (Routine) |
| 1 June 2026 | Pontotoc Exp STN, US | daily high min | 25.0 C (77.0 F) | 1.7 C (3.1 F) | 28 years | 21 of 100 (Routine) |
| 19 May 2026 | Pontotoc Exp STN, US | daily high min | 21.7 C (71.1 F) | 0.6 C (1.1 F) | 25 years | 15 of 100 (Routine) |
| 8 May 2026 | Pontotoc Exp STN, US | daily low max (Tie) | 17.8 C (64.0 F) | tie | 49 years | 5 of 100 (Routine) |
| 3 April 2026 | Pontotoc Exp STN, US | daily high max (Tie) | 29.4 C (84.9 F) | tie | 0 years | 1 of 100 (Routine) |
| 2 April 2026 | Pontotoc Exp STN, US | daily high max | 29.4 C (84.9 F) | 0.5 C (0.9 F) | 63 years | 26 of 100 (Routine) |
| 27 March 2026 | Pontotoc Exp STN, US | daily high max | 30.0 C (86.0 F) | 1.7 C (3.1 F) | 35 years | 19 of 100 (Routine) |
| 26 March 2026 | Pontotoc Exp STN, US | daily high max | 30.0 C (86.0 F) | 1.7 C (3.1 F) | 19 years | 14 of 100 (Routine) |
Climate Trend
62 complete years, 1954 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1954 | 17.8 C | +1.66 C |
| 1955 | 16.9 C | +0.74 C |
| 1956 | 17.2 C | +1.08 C |
| 1957 | 16.8 C | +0.60 C |
| 1958 | 15.6 C | -0.61 C |
| 1959 | 16.7 C | +0.57 C |
| 1960 | 15.7 C | -0.47 C |
| 1961 | 16.1 C | -0.10 C |
| 1962 | 16.8 C | +0.60 C |
| 1963 | 16.1 C | -0.09 C |
| 1964 | 16.6 C | +0.45 C |
| 1965 | 17.0 C | +0.83 C |
| 1966 | 16.0 C | -0.19 C |
| 1967 | 15.5 C | -0.65 C |
| 1968 | 14.7 C | -1.51 C |
| 1969 | 15.1 C | -1.03 C |
| 1970 | 15.7 C | -0.44 C |
| 1972 | 16.0 C | -0.19 C |
| 1973 | 16.3 C | +0.18 C |
| 1974 | 16.0 C | -0.18 C |
| 1975 | 15.9 C | -0.26 C |
| 1976 | 14.9 C | -1.24 C |
| 1977 | 16.2 C | +0.00 C |
| 1978 | 15.6 C | -0.58 C |
| 1979 | 14.8 C | -1.39 C |
| 1980 | 15.8 C | -0.33 C |
| 1981 | 16.0 C | -0.12 C |
| 1982 | 16.1 C | -0.05 C |
| 1983 | 15.3 C | -0.85 C |
| 1984 | 16.1 C | -0.04 C |
| 1985 | 15.7 C | -0.50 C |
| 1986 | 16.6 C | +0.44 C |
| 1987 | 16.2 C | +0.08 C |
| 1988 | 15.6 C | -0.55 C |
| 1989 | 15.2 C | -0.94 C |
| 1990 | 17.1 C | +0.96 C |
| 1991 | 16.7 C | +0.55 C |
| 1992 | 15.8 C | -0.37 C |
| 1993 | 15.7 C | -0.43 C |
| 1994 | 16.2 C | +0.04 C |
| 1995 | 16.2 C | +0.04 C |
| 1996 | 16.1 C | -0.10 C |
| 1997 | 15.8 C | -0.37 C |
| 1998 | 17.5 C | +1.35 C |
| 1999 | 17.2 C | +1.00 C |
| 2000 | 16.6 C | +0.45 C |
| 2001 | 16.2 C | +0.03 C |
| 2002 | 16.3 C | +0.09 C |
| 2003 | 15.6 C | -0.55 C |
| 2004 | 16.1 C | -0.07 C |
| 2005 | 16.4 C | +0.27 C |
| 2006 | 16.8 C | +0.64 C |
| 2007 | 16.9 C | +0.70 C |
| 2008 | 15.7 C | -0.45 C |
| 2009 | 15.9 C | -0.31 C |
| 2010 | 16.1 C | -0.03 C |
| 2011 | 16.6 C | +0.39 C |
| 2012 | 17.1 C | +0.97 C |
| 2013 | 15.7 C | -0.51 C |
| 2014 | 15.3 C | -0.90 C |
| 2015 | 16.7 C | +0.54 C |
| 2025 | 17.3 C | +1.13 C |
The fitted trend in annual mean temperature here over 1954 to 2025 is 0.02 C (-0.07 to 0.12) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.13 to 0.21) per decade. The slope is a straight line fitted to 62 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 (-0.07 to 0.12) per decade | 0.04 F (-0.13 to 0.21) per decade | 1954 to 2025 | 62 | Not clearly different from zero |
| Mean daily maximum | -0.1 C (-0.2 to 0.1) per decade | -0.1 F (-0.3 to 0.1) per decade | 1954 to 2025 | 62 | Not clearly different from zero |
| Mean daily minimum | 0.10 C (0.01 to 0.20) per decade | 0.19 F (0.02 to 0.36) per decade | 1954 to 2025 | 62 | 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
1953 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.6 C (105.1 F) | 1986 | 36.7 C (98.1 F) | 74 |
| Coldest night (TNn) | -21.7 C (-7.1 F) | 1989 | -11.9 C (10.5 F) | 74 |
| Wettest day (Rx1day) | 240.0 mm (9.4 in) | 1955 | 89.7 mm (3.5 in) | 74 |
| Wettest five days (Rx5day) | 333.4 mm (13.1 in) | 1991 | 142.0 mm (5.6 in) | 74 |
| Longest dry spell (CDD) | 52 days | 2023 | 21 days | 74 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1953 | 38.3 C (100.9 F) |
| 1954 | 40.0 C (104.0 F) |
| 1955 | 35.6 C (96.1 F) |
| 1956 | 37.8 C (100.0 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 37.8 C (100.0 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 38.3 C (100.9 F) |
| 1965 | 37.2 C (99.0 F) |
| 1966 | 38.9 C (102.0 F) |
| 1967 | 33.9 C (93.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 36.1 C (97.0 F) |
| 1971 | 36.7 C (98.1 F) |
| 1972 | 36.7 C (98.1 F) |
| 1973 | 35.0 C (95.0 F) |
| 1974 | 34.4 C (93.9 F) |
| 1975 | 34.4 C (93.9 F) |
| 1976 | 36.7 C (98.1 F) |
| 1977 | 38.9 C (102.0 F) |
| 1978 | 37.2 C (99.0 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 40.0 C (104.0 F) |
| 1981 | 37.2 C (99.0 F) |
| 1982 | 35.0 C (95.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 35.6 C (96.1 F) |
| 1985 | 36.1 C (97.0 F) |
| 1986 | 40.6 C (105.1 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 38.3 C (100.9 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 39.4 C (102.9 F) |
| 1991 | 37.2 C (99.0 F) |
| 1992 | 33.9 C (93.0 F) |
| 1993 | 37.8 C (100.0 F) |
| 1994 | 35.0 C (95.0 F) |
| 1995 | 36.1 C (97.0 F) |
| 1996 | 35.6 C (96.1 F) |
| 1997 | 36.1 C (97.0 F) |
| 1998 | 37.2 C (99.0 F) |
| 1999 | 37.2 C (99.0 F) |
| 2000 | 40.0 C (104.0 F) |
| 2001 | 35.0 C (95.0 F) |
| 2002 | 36.1 C (97.0 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 33.9 C (93.0 F) |
| 2005 | 36.1 C (97.0 F) |
| 2006 | 38.3 C (100.9 F) |
| 2007 | 40.0 C (104.0 F) |
| 2008 | 36.7 C (98.1 F) |
| 2009 | 36.1 C (97.0 F) |
| 2010 | 38.3 C (100.9 F) |
| 2011 | 38.3 C (100.9 F) |
| 2012 | 38.9 C (102.0 F) |
| 2013 | 35.6 C (96.1 F) |
| 2014 | 34.4 C (93.9 F) |
| 2015 | 35.6 C (96.1 F) |
| 2016 | 36.7 C (98.1 F) |
| 2017 | 35.0 C (95.0 F) |
| 2018 | 35.0 C (95.0 F) |
| 2019 | 36.1 C (97.0 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 31.1 C (88.0 F) |
| 2022 | 36.7 C (98.1 F) |
| 2023 | 38.3 C (100.9 F) |
| 2024 | 37.2 C (99.0 F) |
| 2025 | 36.1 C (97.0 F) |
| 2026 | 38.3 C (100.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1953 | -11.1 C (12.0 F) |
| 1954 | -7.8 C (18.0 F) |
| 1955 | -11.1 C (12.0 F) |
| 1956 | -7.8 C (18.0 F) |
| 1957 | -11.7 C (10.9 F) |
| 1958 | -14.4 C (6.1 F) |
| 1959 | -13.3 C (8.1 F) |
| 1960 | -11.7 C (10.9 F) |
| 1961 | -10.6 C (12.9 F) |
| 1962 | -20.6 C (-5.1 F) |
| 1963 | -18.9 C (-2.0 F) |
| 1964 | -11.1 C (12.0 F) |
| 1965 | -13.9 C (7.0 F) |
| 1966 | -21.1 C (-6.0 F) |
| 1967 | -11.7 C (10.9 F) |
| 1968 | -11.7 C (10.9 F) |
| 1969 | -12.2 C (10.0 F) |
| 1970 | -15.0 C (5.0 F) |
| 1971 | -13.3 C (8.1 F) |
| 1972 | -14.4 C (6.1 F) |
| 1973 | -9.4 C (15.1 F) |
| 1974 | -7.8 C (18.0 F) |
| 1975 | -10.6 C (12.9 F) |
| 1976 | -12.8 C (9.0 F) |
| 1977 | -18.3 C (-0.9 F) |
| 1978 | -11.7 C (10.9 F) |
| 1979 | -12.2 C (10.0 F) |
| 1980 | -11.1 C (12.0 F) |
| 1981 | -16.7 C (1.9 F) |
| 1982 | -18.9 C (-2.0 F) |
| 1983 | -19.4 C (-2.9 F) |
| 1984 | -13.9 C (7.0 F) |
| 1985 | -21.1 C (-6.0 F) |
| 1986 | -13.3 C (8.1 F) |
| 1987 | -10.6 C (12.9 F) |
| 1988 | -15.0 C (5.0 F) |
| 1989 | -21.7 C (-7.1 F) |
| 1990 | -10.0 C (14.0 F) |
| 1991 | -9.4 C (15.1 F) |
| 1992 | -11.1 C (12.0 F) |
| 1993 | -9.4 C (15.1 F) |
| 1994 | -14.4 C (6.1 F) |
| 1995 | -12.2 C (10.0 F) |
| 1996 | -16.1 C (3.0 F) |
| 1997 | -13.3 C (8.1 F) |
| 1998 | -8.9 C (16.0 F) |
| 1999 | -12.8 C (9.0 F) |
| 2000 | -11.1 C (12.0 F) |
| 2001 | -11.7 C (10.9 F) |
| 2002 | -9.4 C (15.1 F) |
| 2003 | -14.4 C (6.1 F) |
| 2004 | -14.4 C (6.1 F) |
| 2005 | -11.1 C (12.0 F) |
| 2006 | -10.6 C (12.9 F) |
| 2007 | -10.6 C (12.9 F) |
| 2008 | -11.1 C (12.0 F) |
| 2009 | -12.2 C (10.0 F) |
| 2010 | -12.8 C (9.0 F) |
| 2011 | -12.2 C (10.0 F) |
| 2012 | -7.8 C (18.0 F) |
| 2013 | -8.3 C (17.1 F) |
| 2014 | -15.6 C (3.9 F) |
| 2015 | -15.0 C (5.0 F) |
| 2016 | -9.4 C (15.1 F) |
| 2017 | -12.2 C (10.0 F) |
| 2018 | -16.1 C (3.0 F) |
| 2019 | -10.0 C (14.0 F) |
| 2020 | -5.6 C (21.9 F) |
| 2021 | -13.3 C (8.1 F) |
| 2022 | -10.0 C (14.0 F) |
| 2023 | -6.1 C (21.0 F) |
| 2024 | -14.4 C (6.1 F) |
| 2025 | -10.6 C (12.9 F) |
| 2026 | -11.7 C (10.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1953 | 113.5 mm (4.5 in) |
| 1954 | 103.1 mm (4.1 in) |
| 1955 | 240.0 mm (9.4 in) |
| 1956 | 88.9 mm (3.5 in) |
| 1957 | 78.2 mm (3.1 in) |
| 1958 | 111.8 mm (4.4 in) |
| 1959 | 100.1 mm (3.9 in) |
| 1960 | 68.6 mm (2.7 in) |
| 1961 | 73.7 mm (2.9 in) |
| 1962 | 124.0 mm (4.9 in) |
| 1963 | 75.2 mm (3.0 in) |
| 1964 | 83.8 mm (3.3 in) |
| 1965 | 37.6 mm (1.5 in) |
| 1966 | 111.8 mm (4.4 in) |
| 1967 | 79.0 mm (3.1 in) |
| 1968 | 89.9 mm (3.5 in) |
| 1969 | 137.2 mm (5.4 in) |
| 1970 | 124.0 mm (4.9 in) |
| 1971 | 58.9 mm (2.3 in) |
| 1972 | 73.7 mm (2.9 in) |
| 1973 | 175.8 mm (6.9 in) |
| 1974 | 69.1 mm (2.7 in) |
| 1975 | 85.1 mm (3.4 in) |
| 1976 | 73.9 mm (2.9 in) |
| 1977 | 127.0 mm (5.0 in) |
| 1978 | 73.2 mm (2.9 in) |
| 1979 | 118.6 mm (4.7 in) |
| 1980 | 101.6 mm (4.0 in) |
| 1981 | 54.9 mm (2.2 in) |
| 1982 | 158.8 mm (6.3 in) |
| 1983 | 120.7 mm (4.8 in) |
| 1984 | 97.5 mm (3.8 in) |
| 1985 | 63.2 mm (2.5 in) |
| 1986 | 87.4 mm (3.4 in) |
| 1987 | 68.6 mm (2.7 in) |
| 1988 | 59.2 mm (2.3 in) |
| 1989 | 71.1 mm (2.8 in) |
| 1990 | 80.3 mm (3.2 in) |
| 1991 | 156.7 mm (6.2 in) |
| 1992 | 94.7 mm (3.7 in) |
| 1993 | 63.5 mm (2.5 in) |
| 1994 | 106.7 mm (4.2 in) |
| 1995 | 131.6 mm (5.2 in) |
| 1996 | 91.7 mm (3.6 in) |
| 1997 | 124.2 mm (4.9 in) |
| 1998 | 63.8 mm (2.5 in) |
| 1999 | 116.3 mm (4.6 in) |
| 2000 | 105.9 mm (4.2 in) |
| 2001 | 109.7 mm (4.3 in) |
| 2002 | 137.7 mm (5.4 in) |
| 2003 | 108.0 mm (4.3 in) |
| 2004 | 110.5 mm (4.4 in) |
| 2005 | 143.5 mm (5.6 in) |
| 2006 | 104.9 mm (4.1 in) |
| 2007 | 72.4 mm (2.9 in) |
| 2008 | 95.3 mm (3.8 in) |
| 2009 | 111.0 mm (4.4 in) |
| 2010 | 62.2 mm (2.4 in) |
| 2011 | 72.4 mm (2.9 in) |
| 2012 | 76.2 mm (3.0 in) |
| 2013 | 82.3 mm (3.2 in) |
| 2014 | 83.8 mm (3.3 in) |
| 2015 | 97.8 mm (3.9 in) |
| 2016 | 82.6 mm (3.3 in) |
| 2017 | 68.6 mm (2.7 in) |
| 2018 | 71.1 mm (2.8 in) |
| 2019 | 142.2 mm (5.6 in) |
| 2020 | 76.2 mm (3.0 in) |
| 2021 | 61.0 mm (2.4 in) |
| 2022 | 116.8 mm (4.6 in) |
| 2023 | 95.0 mm (3.7 in) |
| 2024 | 89.4 mm (3.5 in) |
| 2025 | 49.5 mm (1.9 in) |
| 2026 | 73.7 mm (2.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1953 | 144.8 mm (5.7 in) |
| 1954 | 131.0 mm (5.2 in) |
| 1955 | 270.2 mm (10.6 in) |
| 1956 | 133.6 mm (5.3 in) |
| 1957 | 169.6 mm (6.7 in) |
| 1958 | 185.7 mm (7.3 in) |
| 1959 | 154.7 mm (6.1 in) |
| 1960 | 77.5 mm (3.1 in) |
| 1961 | 147.1 mm (5.8 in) |
| 1962 | 216.4 mm (8.5 in) |
| 1963 | 122.0 mm (4.8 in) |
| 1964 | 116.8 mm (4.6 in) |
| 1965 | 101.1 mm (4.0 in) |
| 1966 | 154.8 mm (6.1 in) |
| 1967 | 106.0 mm (4.2 in) |
| 1968 | 158.0 mm (6.2 in) |
| 1969 | 250.0 mm (9.8 in) |
| 1970 | 164.4 mm (6.5 in) |
| 1971 | 134.1 mm (5.3 in) |
| 1972 | 137.4 mm (5.4 in) |
| 1973 | 219.7 mm (8.6 in) |
| 1974 | 114.3 mm (4.5 in) |
| 1975 | 165.6 mm (6.5 in) |
| 1976 | 94.4 mm (3.7 in) |
| 1977 | 147.6 mm (5.8 in) |
| 1978 | 148.0 mm (5.8 in) |
| 1979 | 167.6 mm (6.6 in) |
| 1980 | 187.0 mm (7.4 in) |
| 1981 | 86.6 mm (3.4 in) |
| 1982 | 258.7 mm (10.2 in) |
| 1983 | 202.5 mm (8.0 in) |
| 1984 | 146.1 mm (5.8 in) |
| 1985 | 84.8 mm (3.3 in) |
| 1986 | 187.2 mm (7.4 in) |
| 1987 | 95.6 mm (3.8 in) |
| 1988 | 119.9 mm (4.7 in) |
| 1989 | 129.9 mm (5.1 in) |
| 1990 | 154.2 mm (6.1 in) |
| 1991 | 333.4 mm (13.1 in) |
| 1992 | 122.6 mm (4.8 in) |
| 1993 | 133.1 mm (5.2 in) |
| 1994 | 159.3 mm (6.3 in) |
| 1995 | 187.1 mm (7.4 in) |
| 1996 | 129.3 mm (5.1 in) |
| 1997 | 167.9 mm (6.6 in) |
| 1998 | 184.5 mm (7.3 in) |
| 1999 | 168.1 mm (6.6 in) |
| 2000 | 183.4 mm (7.2 in) |
| 2001 | 156.2 mm (6.1 in) |
| 2002 | 221.3 mm (8.7 in) |
| 2003 | 135.5 mm (5.3 in) |
| 2004 | 220.0 mm (8.7 in) |
| 2005 | 145.0 mm (5.7 in) |
| 2006 | 139.2 mm (5.5 in) |
| 2007 | 109.6 mm (4.3 in) |
| 2008 | 149.4 mm (5.9 in) |
| 2009 | 114.9 mm (4.5 in) |
| 2010 | 98.0 mm (3.9 in) |
| 2011 | 95.6 mm (3.8 in) |
| 2012 | 138.9 mm (5.5 in) |
| 2013 | 110.4 mm (4.3 in) |
| 2014 | 222.5 mm (8.8 in) |
| 2015 | 149.3 mm (5.9 in) |
| 2016 | 119.7 mm (4.7 in) |
| 2017 | 77.9 mm (3.1 in) |
| 2018 | 51.6 mm (2.0 in) |
| 2019 | 47.0 mm (1.9 in) |
| 2020 | 52.1 mm (2.1 in) |
| 2021 | 34.3 mm (1.4 in) |
| 2022 | 60.9 mm (2.4 in) |
| 2023 | 101.1 mm (4.0 in) |
| 2024 | 155.6 mm (6.1 in) |
| 2025 | 43.5 mm (1.7 in) |
| 2026 | 86.6 mm (3.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1953 | 36 days |
| 1954 | 26 days |
| 1955 | 23 days |
| 1956 | 24 days |
| 1957 | 26 days |
| 1958 | 21 days |
| 1959 | 18 days |
| 1960 | 12 days |
| 1961 | 24 days |
| 1962 | 22 days |
| 1963 | 34 days |
| 1964 | 32 days |
| 1965 | 30 days |
| 1966 | 26 days |
| 1967 | 19 days |
| 1968 | 19 days |
| 1969 | 16 days |
| 1970 | 20 days |
| 1971 | 21 days |
| 1972 | 18 days |
| 1973 | 17 days |
| 1974 | 16 days |
| 1975 | 12 days |
| 1976 | 17 days |
| 1977 | 18 days |
| 1978 | 23 days |
| 1979 | 12 days |
| 1980 | 24 days |
| 1981 | 21 days |
| 1982 | 13 days |
| 1983 | 20 days |
| 1984 | 24 days |
| 1985 | 17 days |
| 1986 | 21 days |
| 1987 | 22 days |
| 1988 | 21 days |
| 1989 | 17 days |
| 1990 | 26 days |
| 1991 | 23 days |
| 1992 | 20 days |
| 1993 | 17 days |
| 1994 | 14 days |
| 1995 | 26 days |
| 1996 | 23 days |
| 1997 | 17 days |
| 1998 | 35 days |
| 1999 | 27 days |
| 2000 | 28 days |
| 2001 | 29 days |
| 2002 | 17 days |
| 2003 | 17 days |
| 2004 | 21 days |
| 2005 | 35 days |
| 2006 | 25 days |
| 2007 | 26 days |
| 2008 | 20 days |
| 2009 | 16 days |
| 2010 | 16 days |
| 2011 | 18 days |
| 2012 | 18 days |
| 2013 | 17 days |
| 2014 | 19 days |
| 2015 | 17 days |
| 2016 | 29 days |
| 2017 | 13 days |
| 2018 | 9 days |
| 2019 | 23 days |
| 2020 | 7 days |
| 2021 | 4 days |
| 2022 | 5 days |
| 2023 | 52 days |
| 2024 | 31 days |
| 2025 | 23 days |
| 2026 | 13 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
62 years with a frostAcross 62 years with a frost, the median last spring frost at Pontotoc Exp STN falls on 31 March and the median first autumn frost on 5 November, which leaves a median of 220 days between them.
In 1987 to 2025 the median growing season was 226 days. That is 10 days more than in 1954 to 1984.
Fitted over all years, the growing season changes by +2.3 days per decade at this station.
| Measure | Median, all years | Earliest period (1954 to 1984) | Recent period (1987 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 31 March | 31 March | 31 March | no change | -0.8 days per decade |
| First autumn frost | 5 November | 4 November | 6 November | 2 days later | +1.5 days per decade |
| Growing days | 220 days | 216 days | 226 days | 10 days more | +2.3 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
62 years, 1954 to 2016A day with at least 92.0 mm (3.6 in) of rain is expected about once in 2 years. A day with at least 207.6 mm (8.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 92.0 mm (3.6 in) | |
| 5 years | 120.7 mm (4.8 in) | |
| 10 years | 140.5 mm (5.5 in) | |
| 25 years | 166.6 mm (6.6 in) | |
| 50 years | 186.8 mm (7.4 in) | |
| 100 years | 207.6 mm (8.2 in) | Longer than the 62 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, 62 years of values from 1954 to 2016.
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; 175.8 mm (6.9 in) in 1973; 158.8 mm (6.3 in) in 1982.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Pontotoc Exp STN, at 2002. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2002 ran 0.2 C (0.4 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 2002 | -0.2 | -0.4 | 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.
Climate Twins
2002 to 2025 against 1961 to 1990Over 2002 to 2025, Pontotoc Exp STN had a mean temperature of 16.3 C (61.3 F) and 1,469.7 mm (57.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Moulton 2 (United States, 162 km away), Kosciusko (United States, 131 km away) and Louisville (United States, 112 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Moulton 2 | United States | 162 km (101 mi) | 16.1 C (61.0 F) | 1,432.2 mm (56.4 in) | 0.39 |
| Kosciusko | United States | 131 km (81 mi) | 16.6 C (61.8 F) | 1,496.8 mm (58.9 in) | 0.48 |
| Louisville | United States | 112 km (70 mi) | 16.5 C (61.7 F) | 1,494.6 mm (58.8 in) | 0.51 |
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 (2026-10-14).