John H Kerr Dam Weather Records (USC00444414)
Record envelope, standing records and threshold days for John H Kerr Dam (USC00444414), Virginia, United States, with 79 years of record.
Key Facts for John H Kerr Dam
- John H Kerr Dam (USC00444414) is a weather station in Virginia, United States at 36.60 latitude and -78.30 longitude, 76 m (250 ft) above sea level.
- The station reports from 1948 to 2026, 79 years of record.
- 1,464 records set at John H Kerr Dam still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- John H Kerr Dam set a daily record high minimum temperature of 21.7 C (71.1 F) on 3 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Virginia, United States, 36.60 latitude, -78.30 longitude.
- Elevation: 76 m (250 ft).
- Period of record: 1948 to 2026, 79 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
36 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 26.7 C (80.1 F) | -20.6 C (-5.1 F) | 22.2 C (72.0 F) | -9.4 C (15.1 F) |
| Feb | 28.3 C (82.9 F) | -17.8 C (0.0 F) | 19.4 C (66.9 F) | -12.2 C (10.0 F) |
| Mar | 32.2 C (90.0 F) | -13.9 C (7.0 F) | 31.1 C (88.0 F) | -3.3 C (26.1 F) |
| Apr | 34.4 C (93.9 F) | -6.1 C (21.0 F) | 34.4 C (93.9 F) | -0.6 C (30.9 F) |
| May | 37.2 C (99.0 F) | -2.8 C (27.0 F) | 36.7 C (98.1 F) | 4.4 C (39.9 F) |
| Jun | 41.7 C (107.1 F) | 2.8 C (37.0 F) | 40.0 C (104.0 F) | 8.9 C (48.0 F) |
| Jul | 41.1 C (106.0 F) | 8.3 C (46.9 F) | 40.6 C (105.1 F) | 17.8 C (64.0 F) |
| Aug | 42.2 C (108.0 F) | 6.7 C (44.1 F) | 38.3 C (100.9 F) | 16.7 C (62.1 F) |
| Sep | 39.4 C (102.9 F) | 0.6 C (33.1 F) | 38.3 C (100.9 F) | 10.6 C (51.1 F) |
| Oct | 38.9 C (102.0 F) | -7.2 C (19.0 F) | 34.4 C (93.9 F) | 8.3 C (46.9 F) |
| Nov | 32.2 C (90.0 F) | -10.6 C (12.9 F) | n/a | n/a |
| Dec | 27.2 C (81.0 F) | -15.0 C (5.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 26 |
| 1949 | 21 |
| 1950 | 30 |
| 1951 | 12 |
| 1952 | 20 |
| 1953 | 18 |
| 1954 | 30 |
| 1955 | 14 |
| 1956 | 14 |
| 1957 | 14 |
| 1958 | 19 |
| 1959 | 19 |
| 1960 | 25 |
| 1961 | 16 |
| 1962 | 22 |
| 1963 | 29 |
| 1964 | 19 |
| 1965 | 14 |
| 1966 | 27 |
| 1967 | 30 |
| 1968 | 19 |
| 1969 | 22 |
| 1970 | 24 |
| 1971 | 29 |
| 1972 | 24 |
| 1973 | 19 |
| 1974 | 24 |
| 1975 | 13 |
| 1976 | 27 |
| 1977 | 12 |
| 1978 | 6 |
| 1979 | 23 |
| 1980 | 13 |
| 1981 | 15 |
| 1982 | 15 |
| 1983 | 20 |
| 1984 | 17 |
| 1985 | 26 |
| 1986 | 21 |
| 1987 | 4 |
| 1988 | 12 |
| 1989 | 19 |
| 1990 | 13 |
| 1991 | 20 |
| 1992 | 14 |
| 1993 | 15 |
| 1994 | 8 |
| 1995 | 7 |
| 1996 | 11 |
| 1997 | 14 |
| 1998 | 17 |
| 1999 | 12 |
| 2000 | 13 |
| 2001 | 15 |
| 2002 | 32 |
| 2003 | 18 |
| 2004 | 11 |
| 2005 | 17 |
| 2006 | 13 |
| 2007 | 20 |
| 2008 | 16 |
| 2009 | 15 |
| 2010 | 31 |
| 2011 | 19 |
| 2012 | 9 |
| 2013 | 9 |
| 2014 | 19 |
| 2015 | 20 |
| 2016 | 21 |
| 2017 | 25 |
| 2018 | 32 |
| 2019 | 27 |
| 2020 | 22 |
| 2021 | 12 |
| 2022 | 16 |
| 2023 | 15 |
| 2024 | 14 |
| 2025 | 18 |
| 2026 | 31 |
All-Time Record Progression
10 new records| Date | Kind | Detail |
|---|---|---|
| 1985-01-21 | Record low minimum temperature | Record low minimum temperature -20.6 C (-5.1 F) |
| 1989-02-19 | Record snow depth | Record snow depth 35.6 cm (14.0 in) |
| 1999-07-08 | Record daily precipitation | Record daily precipitation 114.3 mm (4.5 in) |
| 1999-09-16 | Record daily precipitation | Record daily precipitation 122.2 mm (4.8 in) |
| 2005-07-28 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
| 2006-07-06 | Record daily precipitation | Record daily precipitation 150.1 mm (5.9 in) |
| 2007-08-09 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 2007-08-10 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 2010-07-24 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
| 2010-07-25 | Record high minimum temperature | Record high minimum temperature 28.3 C (82.9 F) |
Wettest Day of Each Month
Jul: 150.1 mm (5.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 61.7 mm (2.4 in) | 3 January 1999 |
| Feb | 46.2 mm (1.8 in) | 7 February 2020 |
| Mar | 72.6 mm (2.9 in) | 30 March 2001 |
| Apr | 83.8 mm (3.3 in) | 16 April 1987 |
| May | 101.9 mm (4.0 in) | 18 May 2018 |
| Jun | 103.1 mm (4.1 in) | 17 June 2020 |
| Jul | 150.1 mm (5.9 in) | 6 July 2006 |
| Aug | 91.4 mm (3.6 in) | 18 August 1989 |
| Sep | 122.2 mm (4.8 in) | 16 September 1999 |
| Oct | 105.4 mm (4.1 in) | 6 October 1972 |
| Nov | 79.2 mm (3.1 in) | 7 November 1959 |
| Dec | 81.3 mm (3.2 in) | 29 December 1958 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 300 | 82% | No |
| 1949 | 365 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 60 | 16% | No |
| 1952 | 366 | 100% | Yes |
| 1953 | 331 | 91% | Yes |
| 1954 | 359 | 98% | Yes |
| 1955 | 353 | 97% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 358 | 98% | Yes |
| 1958 | 359 | 98% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 333 | 91% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 364 | 99% | Yes |
| 1969 | 363 | 99% | Yes |
| 1970 | 357 | 98% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 335 | 92% | Yes |
| 1975 | 362 | 99% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 243 | 67% | No |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 334 | 92% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 364 | 99% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 333 | 91% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 364 | 99% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 362 | 99% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 361 | 99% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 356 | 98% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 336 | 92% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 334 | 92% | Yes |
| 2011 | 271 | 74% | No |
| 2012 | 211 | 58% | No |
| 2013 | 272 | 75% | No |
| 2014 | 365 | 100% | Yes |
| 2015 | 363 | 99% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 305 | 84% | No |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 3 October 2026 | John H Kerr Dam, US | daily high min (Provisional) | 21.7 C (71.1 F) | 1.1 C (2.0 F) | 72 years | 29 of 100 (Routine) |
| 22 September 2026 | John H Kerr Dam, US | daily high max (Provisional) | 35.0 C (95.0 F) | 0.6 C (1.1 F) | 77 years | 31 of 100 (Routine) |
| 21 September 2026 | John H Kerr Dam, US | daily high min (Provisional) | 22.2 C (72.0 F) | 0.5 C (0.9 F) | 9 years | 10 of 100 (Routine) |
| 20 September 2026 | John H Kerr Dam, US | daily high min (Tie, Provisional) | 21.7 C (71.1 F) | tie | 48 years | 5 of 100 (Routine) |
| 19 September 2026 | John H Kerr Dam, US | daily high max (Provisional) | 35.6 C (96.1 F) | 1.7 C (3.1 F) | 72 years | 31 of 100 (Routine) |
| 13 September 2026 | John H Kerr Dam, US | daily high min (Provisional) | 24.4 C (75.9 F) | 1.1 C (2.0 F) | 8 years | 11 of 100 (Routine) |
| 12 September 2026 | John H Kerr Dam, US | daily high max (Provisional) | 37.8 C (100.0 F) | 1.1 C (2.0 F) | 43 years | 21 of 100 (Routine) |
| 12 September 2026 | John H Kerr Dam, US | daily high min (Tie, Provisional) | 23.9 C (75.0 F) | tie | 12 years | 2 of 100 (Routine) |
| 11 September 2026 | John H Kerr Dam, US | daily high min (Tie, Provisional) | 25.0 C (77.0 F) | tie | 9 years | 2 of 100 (Routine) |
| 5 September 2026 | John H Kerr Dam, US | daily high min (Tie, Provisional) | 23.9 C (75.0 F) | tie | 13 years | 2 of 100 (Routine) |
| 4 September 2026 | John H Kerr Dam, US | monthly high min (Provisional) | 25.6 C (78.1 F) | 0.6 C (1.1 F) | 33 years | 27 of 100 (Routine) |
| 3 September 2026 | John H Kerr Dam, US | daily high max (Provisional) | 38.3 C (100.9 F) | 1.6 C (2.9 F) | 12 years | 13 of 100 (Routine) |
| 2 September 2026 | John H Kerr Dam, US | monthly high min (Tie, Provisional) | 25.0 C (77.0 F) | tie | 32 years | 6 of 100 (Routine) |
| 21 August 2026 | John H Kerr Dam, US | daily high max (Tie, Provisional) | 37.2 C (99.0 F) | tie | 43 years | 4 of 100 (Routine) |
| 20 August 2026 | John H Kerr Dam, US | daily high max (Tie, Provisional) | 36.7 C (98.1 F) | tie | 7 years | 2 of 100 (Routine) |
| 18 August 2026 | John H Kerr Dam, US | daily high max (Provisional) | 38.3 C (100.9 F) | 1.1 C (2.0 F) | 19 years | 15 of 100 (Routine) |
| 15 August 2026 | John H Kerr Dam, US | daily high max | 37.8 C (100.0 F) | 1.1 C (2.0 F) | 45 years | 23 of 100 (Routine) |
| 7 August 2026 | John H Kerr Dam, US | daily high min | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 76 years | 31 of 100 (Routine) |
| 19 July 2026 | John H Kerr Dam, US | daily high max (Tie) | 38.3 C (100.9 F) | tie | 40 years | 4 of 100 (Routine) |
| 18 July 2026 | John H Kerr Dam, US | daily high max (Tie) | 37.8 C (100.0 F) | tie | 37 years | 4 of 100 (Routine) |
Climate Trend
64 complete years, 1949 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1949 | 15.8 C | +0.96 C |
| 1950 | 15.0 C | +0.10 C |
| 1952 | 15.0 C | +0.12 C |
| 1954 | 15.0 C | +0.13 C |
| 1955 | 14.5 C | -0.39 C |
| 1956 | 14.8 C | -0.06 C |
| 1957 | 14.9 C | +0.02 C |
| 1958 | 13.1 C | -1.76 C |
| 1959 | 14.6 C | -0.28 C |
| 1960 | 13.8 C | -1.04 C |
| 1961 | 14.2 C | -0.68 C |
| 1962 | 13.7 C | -1.13 C |
| 1963 | 13.2 C | -1.62 C |
| 1964 | 14.2 C | -0.68 C |
| 1966 | 13.4 C | -1.46 C |
| 1967 | 13.3 C | -1.60 C |
| 1968 | 13.4 C | -1.41 C |
| 1969 | 13.1 C | -1.77 C |
| 1970 | 14.7 C | -0.17 C |
| 1971 | 14.2 C | -0.67 C |
| 1972 | 14.2 C | -0.69 C |
| 1973 | 14.9 C | +0.07 C |
| 1975 | 15.2 C | +0.34 C |
| 1976 | 14.1 C | -0.71 C |
| 1978 | 13.6 C | -1.21 C |
| 1979 | 13.6 C | -1.26 C |
| 1980 | 14.2 C | -0.64 C |
| 1981 | 13.5 C | -1.36 C |
| 1982 | 14.3 C | -0.51 C |
| 1984 | 14.6 C | -0.25 C |
| 1985 | 15.0 C | +0.11 C |
| 1986 | 15.0 C | +0.11 C |
| 1987 | 14.4 C | -0.46 C |
| 1988 | 13.8 C | -1.08 C |
| 1989 | 14.3 C | -0.55 C |
| 1990 | 16.2 C | +1.31 C |
| 1991 | 15.9 C | +1.03 C |
| 1992 | 14.6 C | -0.29 C |
| 1993 | 15.0 C | +0.19 C |
| 1995 | 15.0 C | +0.16 C |
| 1996 | 14.6 C | -0.30 C |
| 1997 | 14.3 C | -0.59 C |
| 1998 | 15.6 C | +0.76 C |
| 1999 | 14.9 C | +0.09 C |
| 2000 | 14.3 C | -0.53 C |
| 2001 | 14.8 C | -0.02 C |
| 2002 | 15.3 C | +0.40 C |
| 2003 | 14.2 C | -0.69 C |
| 2004 | 15.5 C | +0.60 C |
| 2006 | 15.9 C | +1.02 C |
| 2007 | 16.2 C | +1.30 C |
| 2008 | 15.4 C | +0.57 C |
| 2009 | 15.4 C | +0.53 C |
| 2014 | 15.0 C | +0.12 C |
| 2015 | 16.1 C | +1.27 C |
| 2016 | 16.6 C | +1.70 C |
| 2018 | 16.1 C | +1.20 C |
| 2019 | 16.7 C | +1.89 C |
| 2020 | 16.6 C | +1.77 C |
| 2021 | 16.3 C | +1.44 C |
| 2022 | 15.9 C | +1.04 C |
| 2023 | 16.7 C | +1.85 C |
| 2024 | 17.0 C | +2.12 C |
| 2025 | 16.4 C | +1.52 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1949 to 2025. In Fahrenheit: 0.5 F (0.4 to 0.7) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.4 to 0.7) per decade | 1949 to 2025 | 64 | Rise |
| Mean daily maximum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.3 to 0.6) per decade | 1949 to 2025 | 64 | Rise |
| Mean daily minimum | 0.4 C (0.3 to 0.5) per decade | 0.6 F (0.5 to 0.8) per decade | 1949 to 2025 | 64 | 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 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 2007 | 37.2 C (99.0 F) | 79 |
| Coldest night (TNn) | -20.6 C (-5.1 F) | 1985 | -12.8 C (9.0 F) | 79 |
| Wettest day (Rx1day) | 150.1 mm (5.9 in) | 2006 | 63.5 mm (2.5 in) | 79 |
| Wettest five days (Rx5day) | 242.5 mm (9.5 in) | 1975 | 99.7 mm (3.9 in) | 79 |
| Longest dry spell (CDD) | 44 days | 2000 | 19 days | 79 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 38.9 C (102.0 F) |
| 1949 | 37.2 C (99.0 F) |
| 1950 | 36.7 C (98.1 F) |
| 1951 | 26.7 C (80.1 F) |
| 1952 | 40.6 C (105.1 F) |
| 1953 | 38.3 C (100.9 F) |
| 1954 | 39.4 C (102.9 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 36.7 C (98.1 F) |
| 1957 | 36.7 C (98.1 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 38.3 C (100.9 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 33.9 C (93.0 F) |
| 1966 | 37.8 C (100.0 F) |
| 1967 | 33.9 C (93.0 F) |
| 1968 | 38.9 C (102.0 F) |
| 1969 | 37.8 C (100.0 F) |
| 1970 | 38.3 C (100.9 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 36.7 C (98.1 F) |
| 1973 | 36.1 C (97.0 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 36.7 C (98.1 F) |
| 1979 | 37.8 C (100.0 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 36.1 C (97.0 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 38.9 C (102.0 F) |
| 1984 | 36.1 C (97.0 F) |
| 1985 | 36.1 C (97.0 F) |
| 1986 | 38.9 C (102.0 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 40.6 C (105.1 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 37.2 C (99.0 F) |
| 1991 | 36.7 C (98.1 F) |
| 1992 | 35.6 C (96.1 F) |
| 1993 | 37.2 C (99.0 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 36.1 C (97.0 F) |
| 1996 | 36.1 C (97.0 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 37.8 C (100.0 F) |
| 1999 | 38.3 C (100.9 F) |
| 2000 | 35.0 C (95.0 F) |
| 2001 | 36.7 C (98.1 F) |
| 2002 | 39.4 C (102.9 F) |
| 2003 | 36.7 C (98.1 F) |
| 2004 | 35.6 C (96.1 F) |
| 2005 | 41.1 C (106.0 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 42.2 C (108.0 F) |
| 2008 | 38.9 C (102.0 F) |
| 2009 | 37.8 C (100.0 F) |
| 2010 | 41.1 C (106.0 F) |
| 2011 | 40.6 C (105.1 F) |
| 2012 | 41.7 C (107.1 F) |
| 2013 | 36.7 C (98.1 F) |
| 2014 | 37.2 C (99.0 F) |
| 2015 | 37.2 C (99.0 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 38.9 C (102.0 F) |
| 2018 | 37.2 C (99.0 F) |
| 2019 | 38.9 C (102.0 F) |
| 2020 | 38.3 C (100.9 F) |
| 2021 | 36.7 C (98.1 F) |
| 2022 | 38.3 C (100.9 F) |
| 2023 | 38.3 C (100.9 F) |
| 2024 | 39.4 C (102.9 F) |
| 2025 | 38.9 C (102.0 F) |
| 2026 | 40.6 C (105.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -11.7 C (10.9 F) |
| 1949 | -8.9 C (16.0 F) |
| 1950 | -10.0 C (14.0 F) |
| 1951 | -13.3 C (8.1 F) |
| 1952 | -9.4 C (15.1 F) |
| 1953 | -10.0 C (14.0 F) |
| 1954 | -12.2 C (10.0 F) |
| 1955 | -11.7 C (10.9 F) |
| 1956 | -9.4 C (15.1 F) |
| 1957 | -12.8 C (9.0 F) |
| 1958 | -15.0 C (5.0 F) |
| 1959 | -13.9 C (7.0 F) |
| 1960 | -13.9 C (7.0 F) |
| 1961 | -12.8 C (9.0 F) |
| 1962 | -17.2 C (1.0 F) |
| 1963 | -16.7 C (1.9 F) |
| 1964 | -18.3 C (-0.9 F) |
| 1965 | -17.8 C (0.0 F) |
| 1966 | -15.6 C (3.9 F) |
| 1967 | -13.3 C (8.1 F) |
| 1968 | -14.4 C (6.1 F) |
| 1969 | -15.0 C (5.0 F) |
| 1970 | -16.7 C (1.9 F) |
| 1971 | -15.6 C (3.9 F) |
| 1972 | -17.8 C (0.0 F) |
| 1973 | -15.0 C (5.0 F) |
| 1974 | -9.4 C (15.1 F) |
| 1975 | -10.6 C (12.9 F) |
| 1976 | -15.0 C (5.0 F) |
| 1977 | -17.2 C (1.0 F) |
| 1978 | -11.7 C (10.9 F) |
| 1979 | -17.2 C (1.0 F) |
| 1980 | -14.4 C (6.1 F) |
| 1981 | -16.1 C (3.0 F) |
| 1982 | -15.0 C (5.0 F) |
| 1983 | -15.0 C (5.0 F) |
| 1984 | -14.4 C (6.1 F) |
| 1985 | -20.6 C (-5.1 F) |
| 1986 | -11.7 C (10.9 F) |
| 1987 | -12.8 C (9.0 F) |
| 1988 | -13.9 C (7.0 F) |
| 1989 | -14.4 C (6.1 F) |
| 1990 | -8.9 C (16.0 F) |
| 1991 | -10.0 C (14.0 F) |
| 1992 | -6.1 C (21.0 F) |
| 1993 | -8.9 C (16.0 F) |
| 1994 | -17.8 C (0.0 F) |
| 1995 | -10.0 C (14.0 F) |
| 1996 | -16.7 C (1.9 F) |
| 1997 | -13.3 C (8.1 F) |
| 1998 | -9.4 C (15.1 F) |
| 1999 | -12.8 C (9.0 F) |
| 2000 | -17.2 C (1.0 F) |
| 2001 | -11.7 C (10.9 F) |
| 2002 | -10.6 C (12.9 F) |
| 2003 | -12.8 C (9.0 F) |
| 2004 | -15.6 C (3.9 F) |
| 2005 | -12.2 C (10.0 F) |
| 2006 | -8.9 C (16.0 F) |
| 2007 | -11.1 C (12.0 F) |
| 2008 | -11.7 C (10.9 F) |
| 2009 | -15.6 C (3.9 F) |
| 2010 | -11.7 C (10.9 F) |
| 2011 | -11.1 C (12.0 F) |
| 2012 | -7.2 C (19.0 F) |
| 2013 | -8.3 C (17.1 F) |
| 2014 | -17.2 C (1.0 F) |
| 2015 | -13.3 C (8.1 F) |
| 2016 | -11.7 C (10.9 F) |
| 2017 | -17.8 C (0.0 F) |
| 2018 | -17.8 C (0.0 F) |
| 2019 | -10.6 C (12.9 F) |
| 2020 | -7.2 C (19.0 F) |
| 2021 | -8.3 C (17.1 F) |
| 2022 | -13.9 C (7.0 F) |
| 2023 | -7.2 C (19.0 F) |
| 2024 | -8.9 C (16.0 F) |
| 2025 | -12.8 C (9.0 F) |
| 2026 | -12.2 C (10.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 44.7 mm (1.8 in) |
| 1949 | 62.0 mm (2.4 in) |
| 1950 | 52.1 mm (2.1 in) |
| 1951 | 53.1 mm (2.1 in) |
| 1952 | 71.6 mm (2.8 in) |
| 1953 | 64.8 mm (2.6 in) |
| 1954 | 47.5 mm (1.9 in) |
| 1955 | 94.0 mm (3.7 in) |
| 1956 | 80.0 mm (3.1 in) |
| 1957 | 42.7 mm (1.7 in) |
| 1958 | 81.3 mm (3.2 in) |
| 1959 | 94.5 mm (3.7 in) |
| 1960 | 66.8 mm (2.6 in) |
| 1961 | 37.6 mm (1.5 in) |
| 1962 | 58.4 mm (2.3 in) |
| 1963 | 63.8 mm (2.5 in) |
| 1964 | 63.5 mm (2.5 in) |
| 1965 | 62.2 mm (2.4 in) |
| 1966 | 72.4 mm (2.9 in) |
| 1967 | 46.2 mm (1.8 in) |
| 1968 | 46.2 mm (1.8 in) |
| 1969 | 58.4 mm (2.3 in) |
| 1970 | 53.6 mm (2.1 in) |
| 1971 | 73.7 mm (2.9 in) |
| 1972 | 105.4 mm (4.1 in) |
| 1973 | 54.9 mm (2.2 in) |
| 1974 | 81.5 mm (3.2 in) |
| 1975 | 68.6 mm (2.7 in) |
| 1976 | 54.6 mm (2.1 in) |
| 1977 | 46.0 mm (1.8 in) |
| 1978 | 58.9 mm (2.3 in) |
| 1979 | 78.7 mm (3.1 in) |
| 1980 | 45.2 mm (1.8 in) |
| 1981 | 66.0 mm (2.6 in) |
| 1982 | 49.5 mm (1.9 in) |
| 1983 | 50.8 mm (2.0 in) |
| 1984 | 69.3 mm (2.7 in) |
| 1985 | 48.3 mm (1.9 in) |
| 1986 | 48.3 mm (1.9 in) |
| 1987 | 89.4 mm (3.5 in) |
| 1988 | 53.8 mm (2.1 in) |
| 1989 | 91.4 mm (3.6 in) |
| 1990 | 71.9 mm (2.8 in) |
| 1991 | 57.2 mm (2.3 in) |
| 1992 | 79.0 mm (3.1 in) |
| 1993 | 78.5 mm (3.1 in) |
| 1994 | 42.4 mm (1.7 in) |
| 1995 | 52.6 mm (2.1 in) |
| 1996 | 98.8 mm (3.9 in) |
| 1997 | 54.6 mm (2.1 in) |
| 1998 | 67.8 mm (2.7 in) |
| 1999 | 122.2 mm (4.8 in) |
| 2000 | 45.0 mm (1.8 in) |
| 2001 | 72.6 mm (2.9 in) |
| 2002 | 87.1 mm (3.4 in) |
| 2003 | 111.5 mm (4.4 in) |
| 2004 | 87.4 mm (3.4 in) |
| 2005 | 56.4 mm (2.2 in) |
| 2006 | 150.1 mm (5.9 in) |
| 2007 | 71.4 mm (2.8 in) |
| 2008 | 58.2 mm (2.3 in) |
| 2009 | 59.2 mm (2.3 in) |
| 2010 | 67.1 mm (2.6 in) |
| 2011 | 50.8 mm (2.0 in) |
| 2012 | 50.8 mm (2.0 in) |
| 2013 | 49.0 mm (1.9 in) |
| 2014 | 87.6 mm (3.4 in) |
| 2015 | 74.4 mm (2.9 in) |
| 2016 | 103.9 mm (4.1 in) |
| 2017 | 48.8 mm (1.9 in) |
| 2018 | 101.9 mm (4.0 in) |
| 2019 | 72.1 mm (2.8 in) |
| 2020 | 115.1 mm (4.5 in) |
| 2021 | 101.9 mm (4.0 in) |
| 2022 | 54.1 mm (2.1 in) |
| 2023 | 86.9 mm (3.4 in) |
| 2024 | 61.0 mm (2.4 in) |
| 2025 | 61.7 mm (2.4 in) |
| 2026 | 42.2 mm (1.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 71.7 mm (2.8 in) |
| 1949 | 122.7 mm (4.8 in) |
| 1950 | 101.6 mm (4.0 in) |
| 1951 | 81.1 mm (3.2 in) |
| 1952 | 101.6 mm (4.0 in) |
| 1953 | 75.7 mm (3.0 in) |
| 1954 | 79.0 mm (3.1 in) |
| 1955 | 151.9 mm (6.0 in) |
| 1956 | 103.3 mm (4.1 in) |
| 1957 | 83.6 mm (3.3 in) |
| 1958 | 97.1 mm (3.8 in) |
| 1959 | 126.8 mm (5.0 in) |
| 1960 | 86.6 mm (3.4 in) |
| 1961 | 76.2 mm (3.0 in) |
| 1962 | 74.9 mm (2.9 in) |
| 1963 | 89.2 mm (3.5 in) |
| 1964 | 79.5 mm (3.1 in) |
| 1965 | 92.7 mm (3.6 in) |
| 1966 | 75.2 mm (3.0 in) |
| 1967 | 64.3 mm (2.5 in) |
| 1968 | 88.9 mm (3.5 in) |
| 1969 | 64.8 mm (2.6 in) |
| 1970 | 80.1 mm (3.2 in) |
| 1971 | 135.0 mm (5.3 in) |
| 1972 | 121.2 mm (4.8 in) |
| 1973 | 97.8 mm (3.9 in) |
| 1974 | 158.2 mm (6.2 in) |
| 1975 | 242.5 mm (9.5 in) |
| 1976 | 71.6 mm (2.8 in) |
| 1977 | 74.4 mm (2.9 in) |
| 1978 | 103.7 mm (4.1 in) |
| 1979 | 153.1 mm (6.0 in) |
| 1980 | 59.0 mm (2.3 in) |
| 1981 | 83.9 mm (3.3 in) |
| 1982 | 99.7 mm (3.9 in) |
| 1983 | 106.0 mm (4.2 in) |
| 1984 | 97.5 mm (3.8 in) |
| 1985 | 104.8 mm (4.1 in) |
| 1986 | 59.0 mm (2.3 in) |
| 1987 | 140.6 mm (5.5 in) |
| 1988 | 96.1 mm (3.8 in) |
| 1989 | 109.7 mm (4.3 in) |
| 1990 | 85.3 mm (3.4 in) |
| 1991 | 89.5 mm (3.5 in) |
| 1992 | 112.8 mm (4.4 in) |
| 1993 | 78.5 mm (3.1 in) |
| 1994 | 94.1 mm (3.7 in) |
| 1995 | 62.1 mm (2.4 in) |
| 1996 | 118.6 mm (4.7 in) |
| 1997 | 142.0 mm (5.6 in) |
| 1998 | 145.2 mm (5.7 in) |
| 1999 | 136.6 mm (5.4 in) |
| 2000 | 74.9 mm (2.9 in) |
| 2001 | 102.9 mm (4.1 in) |
| 2002 | 123.2 mm (4.9 in) |
| 2003 | 144.3 mm (5.7 in) |
| 2004 | 115.3 mm (4.5 in) |
| 2005 | 92.5 mm (3.6 in) |
| 2006 | 180.5 mm (7.1 in) |
| 2007 | 126.8 mm (5.0 in) |
| 2008 | 120.5 mm (4.7 in) |
| 2009 | 142.8 mm (5.6 in) |
| 2010 | 115.2 mm (4.5 in) |
| 2011 | 54.6 mm (2.1 in) |
| 2012 | 64.8 mm (2.6 in) |
| 2013 | 75.7 mm (3.0 in) |
| 2014 | 100.6 mm (4.0 in) |
| 2015 | 103.6 mm (4.1 in) |
| 2016 | 133.6 mm (5.3 in) |
| 2017 | 93.5 mm (3.7 in) |
| 2018 | 142.6 mm (5.6 in) |
| 2019 | 123.7 mm (4.9 in) |
| 2020 | 195.3 mm (7.7 in) |
| 2021 | 124.2 mm (4.9 in) |
| 2022 | 78.1 mm (3.1 in) |
| 2023 | 98.3 mm (3.9 in) |
| 2024 | 106.7 mm (4.2 in) |
| 2025 | 112.0 mm (4.4 in) |
| 2026 | 50.0 mm (2.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 17 days |
| 1949 | 15 days |
| 1950 | 17 days |
| 1951 | 9 days |
| 1952 | 24 days |
| 1953 | 31 days |
| 1954 | 15 days |
| 1955 | 15 days |
| 1956 | 22 days |
| 1957 | 18 days |
| 1958 | 21 days |
| 1959 | 28 days |
| 1960 | 17 days |
| 1961 | 15 days |
| 1962 | 16 days |
| 1963 | 23 days |
| 1964 | 21 days |
| 1965 | 32 days |
| 1966 | 24 days |
| 1967 | 19 days |
| 1968 | 25 days |
| 1969 | 17 days |
| 1970 | 22 days |
| 1971 | 20 days |
| 1972 | 14 days |
| 1973 | 19 days |
| 1974 | 17 days |
| 1975 | 15 days |
| 1976 | 17 days |
| 1977 | 18 days |
| 1978 | 36 days |
| 1979 | 16 days |
| 1980 | 21 days |
| 1981 | 26 days |
| 1982 | 16 days |
| 1983 | 15 days |
| 1984 | 20 days |
| 1985 | 22 days |
| 1986 | 29 days |
| 1987 | 30 days |
| 1988 | 18 days |
| 1989 | 19 days |
| 1990 | 19 days |
| 1991 | 27 days |
| 1992 | 17 days |
| 1993 | 15 days |
| 1994 | 20 days |
| 1995 | 22 days |
| 1996 | 13 days |
| 1997 | 15 days |
| 1998 | 24 days |
| 1999 | 28 days |
| 2000 | 44 days |
| 2001 | 39 days |
| 2002 | 19 days |
| 2003 | 15 days |
| 2004 | 21 days |
| 2005 | 22 days |
| 2006 | 18 days |
| 2007 | 21 days |
| 2008 | 16 days |
| 2009 | 18 days |
| 2010 | 18 days |
| 2011 | 18 days |
| 2012 | 13 days |
| 2013 | 19 days |
| 2014 | 13 days |
| 2015 | 22 days |
| 2016 | 31 days |
| 2017 | 24 days |
| 2018 | 13 days |
| 2019 | 37 days |
| 2020 | 12 days |
| 2021 | 23 days |
| 2022 | 14 days |
| 2023 | 30 days |
| 2024 | 39 days |
| 2025 | 13 days |
| 2026 | 28 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
64 years with a frostAcross 64 years with a frost, the median last spring frost at John H Kerr Dam falls on 10 April and the median first autumn frost on 25 October, which leaves a median of 197 days between them.
In 1989 to 2025 the median growing season was 207 days. That is 15 days more than in 1949 to 1984.
Fitted over all years, the growing season changes by +3.9 days per decade at this station.
| Measure | Median, all years | Earliest period (1949 to 1984) | Recent period (1989 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 10 April | 16 April | 8 April | 8 days earlier | -1.8 days per decade |
| First autumn frost | 25 October | 21 October | 1 November | 11 days later | +2.1 days per decade |
| Growing days | 197 days | 192 days | 207 days | 15 days more | +3.9 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
71 years, 1949 to 2025A day with at least 66.5 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 144.7 mm (5.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 66.5 mm (2.6 in) | |
| 5 years | 85.7 mm (3.4 in) | |
| 10 years | 99.2 mm (3.9 in) | |
| 25 years | 116.8 mm (4.6 in) | |
| 50 years | 130.5 mm (5.1 in) | |
| 100 years | 144.7 mm (5.7 in) | Longer than the 71 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, 71 years of values from 1949 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: 150.1 mm (5.9 in) in 2006; 122.2 mm (4.8 in) in 1999; 115.1 mm (4.5 in) in 2020.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of John H Kerr Dam, at 2004. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2004 ran 0.5 C (0.8 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 2004 | +0.5 | +0.8 | 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
2006 to 2025 against 1961 to 1990Over 2006 to 2025, John H Kerr Dam had a mean temperature of 16.1 C (61.1 F) and 1,158.1 mm (45.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Fayetteville (Pwc) (United States, 179 km away), Pope AFB (United States, 171 km away) and Booneville 3 SSE (United States, 1,415 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Fayetteville (Pwc) | United States | 179 km (111 mi) | 15.9 C (60.7 F) | 1,179.7 mm (46.4 in) | 0.72 |
| Pope AFB | United States | 171 km (106 mi) | 16.2 C (61.1 F) | 1,152.6 mm (45.4 in) | 0.74 |
| Booneville 3 SSE | United States | 1,415 km (879 mi) | 16.3 C (61.4 F) | 1,107.9 mm (43.6 in) | 0.76 |
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).