Summersville Lake Weather Records (USC00468614)
Record envelope, standing records and threshold days for Summersville Lake (USC00468614), West Virginia, United States, with 60 years of record.
Key Facts for Summersville Lake
- Summersville Lake (USC00468614) is a weather station in West Virginia, United States at 38.22 latitude and -80.89 longitude, 539 m (1,768 ft) above sea level.
- The station reports from 1967 to 2026, 60 years of record.
- 1,464 records set at Summersville Lake still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Summersville Lake set a daily record precipitation of 28.2 mm (1.1 in) on 24 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: West Virginia, United States, 38.22 latitude, -80.89 longitude.
- Elevation: 539 m (1,768 ft).
- Period of record: 1967 to 2026, 60 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
11 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 21.7 C (71.1 F) | -28.9 C (-20.0 F) | 15.0 C (59.0 F) | -17.8 C (0.0 F) |
| Feb | 25.6 C (78.1 F) | -27.2 C (-17.0 F) | 20.6 C (69.1 F) | -18.9 C (-2.0 F) |
| Mar | 28.9 C (84.0 F) | -22.8 C (-9.0 F) | 27.2 C (81.0 F) | -10.6 C (12.9 F) |
| Apr | 33.3 C (91.9 F) | -10.0 C (14.0 F) | 29.4 C (84.9 F) | -2.8 C (27.0 F) |
| May | 31.7 C (89.1 F) | -2.8 C (27.0 F) | 30.6 C (87.1 F) | -1.1 C (30.0 F) |
| Jun | 33.9 C (93.0 F) | 0.6 C (33.1 F) | 29.4 C (84.9 F) | 6.7 C (44.1 F) |
| Jul | 37.2 C (99.0 F) | 5.0 C (41.0 F) | 31.1 C (88.0 F) | 11.1 C (52.0 F) |
| Aug | 35.6 C (96.1 F) | 3.9 C (39.0 F) | 28.9 C (84.0 F) | 8.9 C (48.0 F) |
| Sep | 33.3 C (91.9 F) | 0.0 C (32.0 F) | 31.7 C (89.1 F) | 4.4 C (39.9 F) |
| Oct | 31.7 C (89.1 F) | -9.4 C (15.1 F) | 26.7 C (80.1 F) | 3.9 C (39.0 F) |
| Nov | 26.7 C (80.1 F) | -15.0 C (5.0 F) | n/a | n/a |
| Dec | 23.9 C (75.0 F) | -26.7 C (-16.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1967 | 17 |
| 1968 | 25 |
| 1969 | 20 |
| 1970 | 40 |
| 1971 | 27 |
| 1972 | 33 |
| 1973 | 45 |
| 1974 | 35 |
| 1975 | 17 |
| 1976 | 67 |
| 1977 | 49 |
| 1978 | 37 |
| 1979 | 40 |
| 1980 | 21 |
| 1981 | 19 |
| 1982 | 31 |
| 1983 | 29 |
| 1984 | 47 |
| 1985 | 33 |
| 1986 | 36 |
| 1987 | 13 |
| 1988 | 39 |
| 1989 | 32 |
| 1990 | 27 |
| 1991 | 32 |
| 1992 | 21 |
| 1993 | 18 |
| 1994 | 21 |
| 1995 | 18 |
| 1996 | 26 |
| 1997 | 20 |
| 1998 | 26 |
| 1999 | 18 |
| 2000 | 24 |
| 2001 | 28 |
| 2002 | 28 |
| 2003 | 8 |
| 2004 | 19 |
| 2005 | 17 |
| 2006 | 18 |
| 2007 | 29 |
| 2008 | 13 |
| 2009 | 15 |
| 2010 | 11 |
| 2011 | 17 |
| 2012 | 32 |
| 2013 | 18 |
| 2014 | 24 |
| 2015 | 31 |
| 2016 | 14 |
| 2017 | 14 |
| 2018 | 23 |
| 2019 | 20 |
| 2020 | 16 |
| 2021 | 6 |
| 2022 | 12 |
| 2023 | 8 |
| 2024 | 17 |
| 2025 | 9 |
| 2026 | 14 |
All-Time Record Progression
11 new records| Date | Kind | Detail |
|---|---|---|
| 1999-07-02 | Record high minimum temperature | Record high minimum temperature 22.2 C (72.0 F) |
| 2007-08-17 | Record high maximum temperature | Record high maximum temperature 35.6 C (96.1 F) |
| 2009-12-19 | Record daily snowfall | Record daily snowfall 61.0 cm (24.0 in) |
| 2009-12-19 | Record snow depth | Record snow depth 61.0 cm (24.0 in) |
| 2009-12-20 | Record snow depth | Record snow depth 66.0 cm (26.0 in) |
| 2012-07-02 | Record high minimum temperature | Record high minimum temperature 23.9 C (75.0 F) |
| 2012-07-04 | Record high maximum temperature | Record high maximum temperature 36.1 C (97.0 F) |
| 2012-07-05 | Record high maximum temperature | Record high maximum temperature 36.7 C (98.1 F) |
| 2012-07-05 | Record high minimum temperature | Record high minimum temperature 24.4 C (75.9 F) |
| 2012-07-06 | Record high maximum temperature | Record high maximum temperature 37.2 C (99.0 F) |
| 2012-07-06 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
Wettest Day of Each Month
Jul: 131.1 mm (5.2 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 67.3 mm (2.6 in) | 28 January 1998 |
| Feb | 68.6 mm (2.7 in) | 17 February 2023 |
| Mar | 55.9 mm (2.2 in) | 1 March 2021 |
| Apr | 61.0 mm (2.4 in) | 16 April 2018 |
| May | 74.4 mm (2.9 in) | 30 May 1982 |
| Jun | 128.3 mm (5.1 in) | 24 June 2016 |
| Jul | 131.1 mm (5.2 in) | 2 July 1986 |
| Aug | 63.2 mm (2.5 in) | 24 August 1986 |
| Sep | 62.7 mm (2.5 in) | 20 September 2013 |
| Oct | 66.0 mm (2.6 in) | 9 October 1976 |
| Nov | 86.1 mm (3.4 in) | 5 November 1985 |
| Dec | 67.1 mm (2.6 in) | 3 December 1991 |
Period of Record Coverage
1967 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1967 | 184 | 50% | No |
| 1968 | 366 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 333 | 91% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 360 | 99% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 361 | 99% | Yes |
| 1984 | 363 | 99% | Yes |
| 1985 | 358 | 98% | Yes |
| 1986 | 357 | 98% | Yes |
| 1987 | 361 | 99% | Yes |
| 1988 | 359 | 98% | Yes |
| 1989 | 351 | 96% | Yes |
| 1990 | 353 | 97% | Yes |
| 1991 | 346 | 95% | Yes |
| 1992 | 355 | 97% | Yes |
| 1993 | 352 | 96% | Yes |
| 1994 | 354 | 97% | Yes |
| 1995 | 344 | 94% | Yes |
| 1996 | 352 | 96% | Yes |
| 1997 | 347 | 95% | Yes |
| 1998 | 343 | 94% | Yes |
| 1999 | 357 | 98% | Yes |
| 2000 | 359 | 98% | Yes |
| 2001 | 350 | 96% | Yes |
| 2002 | 298 | 82% | No |
| 2003 | 355 | 97% | Yes |
| 2004 | 355 | 97% | Yes |
| 2005 | 353 | 97% | Yes |
| 2006 | 353 | 97% | Yes |
| 2007 | 348 | 95% | Yes |
| 2008 | 331 | 90% | Yes |
| 2009 | 340 | 93% | Yes |
| 2010 | 358 | 98% | Yes |
| 2011 | 349 | 96% | Yes |
| 2012 | 306 | 84% | No |
| 2013 | 296 | 81% | No |
| 2014 | 346 | 95% | Yes |
| 2015 | 344 | 94% | Yes |
| 2016 | 330 | 90% | Yes |
| 2017 | 332 | 91% | Yes |
| 2018 | 317 | 87% | No |
| 2019 | 324 | 89% | No |
| 2020 | 322 | 88% | No |
| 2021 | 320 | 88% | No |
| 2022 | 321 | 88% | No |
| 2023 | 331 | 91% | Yes |
| 2024 | 310 | 85% | No |
| 2025 | 256 | 70% | No |
| 2026 | 220 | 60% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 24 September 2026 | Summersville Lake, US | daily rain (Provisional) | 28.2 mm (1.1 in) | 6.4 mm (0.25 in) | 8 years | 14 of 100 (Routine) |
| 21 September 2026 | Summersville Lake, US | daily rain (Provisional) | 22.9 mm (0.9 in) | 1.8 mm (0.07 in) | 51 years | 20 of 100 (Routine) |
| 21 September 2026 | Summersville Lake, US | daily high min (Tie, Provisional) | 18.3 C (64.9 F) | tie | 24 years | 3 of 100 (Routine) |
| 19 September 2026 | Summersville Lake, US | daily high min (Tie, Provisional) | 17.2 C (63.0 F) | tie | 48 years | 5 of 100 (Routine) |
| 12 September 2026 | Summersville Lake, US | daily high min (Tie, Provisional) | 18.9 C (66.0 F) | tie | 25 years | 3 of 100 (Routine) |
| 11 September 2026 | Summersville Lake, US | daily high min (Provisional) | 19.4 C (66.9 F) | 1.1 C (2.0 F) | 55 years | 24 of 100 (Routine) |
| 25 August 2026 | Summersville Lake, US | daily low min (Tie, Provisional) | 8.9 C (48.0 F) | tie | 55 years | 5 of 100 (Routine) |
| 17 August 2026 | Summersville Lake, US | daily rain (Provisional) | 42.7 mm (1.7 in) | 10.9 mm (0.4 in) | 32 years | 24 of 100 (Routine) |
| 15 August 2026 | Summersville Lake, US | daily high min (Tie, Provisional) | 20.0 C (68.0 F) | tie | 31 years | 3 of 100 (Routine) |
| 12 August 2026 | Summersville Lake, US | daily rain | 55.4 mm (2.2 in) | 9.2 mm (0.36 in) | 47 years | 28 of 100 (Routine) |
| 13 July 2026 | Summersville Lake, US | daily rain | 66.0 mm (2.6 in) | 39.8 mm (1.6 in) | 20 years | 40 of 100 (Notable) |
| 11 June 2026 | Summersville Lake, US | daily high min | 19.4 C (66.9 F) | 1.1 C (2.0 F) | 20 years | 14 of 100 (Routine) |
| 21 May 2026 | Summersville Lake, US | daily high min | 16.7 C (62.1 F) | 0.6 C (1.1 F) | 24 years | 14 of 100 (Routine) |
| 15 May 2026 | Summersville Lake, US | daily low max | 8.9 C (48.0 F) | 0.5 C (0.9 F) | 48 years | 20 of 100 (Routine) |
| 30 April 2026 | Summersville Lake, US | daily rain | 40.6 mm (1.6 in) | 6.3 mm (0.25 in) | 20 years | 19 of 100 (Routine) |
| 16 April 2026 | Summersville Lake, US | daily high max (Tie) | 29.4 C (84.9 F) | tie | 8 years | 2 of 100 (Routine) |
| 5 April 2026 | Summersville Lake, US | daily high max | 28.3 C (82.9 F) | 0.5 C (0.9 F) | 44 years | 19 of 100 (Routine) |
| 2 April 2026 | Summersville Lake, US | daily high min (Tie) | 11.7 C (53.1 F) | tie | 47 years | 5 of 100 (Routine) |
| 1 April 2026 | Summersville Lake, US | daily high min | 13.3 C (55.9 F) | 2.2 C (4.0 F) | 47 years | 24 of 100 (Routine) |
| 27 March 2026 | Summersville Lake, US | daily high max | 26.1 C (79.0 F) | 0.5 C (0.9 F) | 19 years | 11 of 100 (Routine) |
Climate Trend
48 complete years, 1968 to 2023| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1968 | 9.8 C | -0.87 C |
| 1969 | 9.9 C | -0.71 C |
| 1970 | 11.0 C | +0.40 C |
| 1972 | 10.5 C | -0.17 C |
| 1973 | 11.5 C | +0.91 C |
| 1974 | 11.1 C | +0.50 C |
| 1975 | 11.5 C | +0.83 C |
| 1976 | 9.4 C | -1.28 C |
| 1977 | 9.7 C | -0.90 C |
| 1978 | 9.5 C | -1.16 C |
| 1979 | 9.9 C | -0.77 C |
| 1980 | 9.9 C | -0.71 C |
| 1981 | 9.5 C | -1.16 C |
| 1983 | 10.6 C | -0.04 C |
| 1984 | 11.1 C | +0.42 C |
| 1985 | 11.3 C | +0.62 C |
| 1986 | 11.6 C | +1.00 C |
| 1987 | 11.1 C | +0.49 C |
| 1988 | 9.9 C | -0.73 C |
| 1989 | 9.9 C | -0.78 C |
| 1990 | 11.8 C | +1.15 C |
| 1991 | 11.6 C | +0.97 C |
| 1992 | 10.1 C | -0.53 C |
| 1993 | 10.5 C | -0.16 C |
| 1994 | 10.6 C | -0.04 C |
| 1995 | 10.2 C | -0.46 C |
| 1996 | 9.9 C | -0.70 C |
| 1997 | 10.0 C | -0.62 C |
| 1998 | 10.5 C | -0.11 C |
| 1999 | 11.3 C | +0.69 C |
| 2000 | 10.4 C | -0.26 C |
| 2001 | 10.9 C | +0.30 C |
| 2003 | 10.1 C | -0.55 C |
| 2004 | 10.8 C | +0.19 C |
| 2005 | 10.8 C | +0.16 C |
| 2006 | 10.8 C | +0.21 C |
| 2007 | 11.3 C | +0.65 C |
| 2008 | 10.5 C | -0.16 C |
| 2009 | 10.5 C | -0.13 C |
| 2010 | 10.0 C | -0.65 C |
| 2011 | 11.2 C | +0.59 C |
| 2014 | 9.7 C | -0.94 C |
| 2015 | 11.5 C | +0.83 C |
| 2016 | 11.6 C | +1.01 C |
| 2019 | 11.8 C | +1.16 C |
| 2020 | 11.6 C | +0.99 C |
| 2022 | 10.6 C | -0.02 C |
| 2023 | 11.4 C | +0.76 C |
The annual mean temperature here has risen by 0.14 C (0.02 to 0.27) per decade over 1968 to 2023. In Fahrenheit: 0.26 F (0.03 to 0.49) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.14 C (0.02 to 0.27) per decade | 0.26 F (0.03 to 0.49) per decade | 1968 to 2023 | 48 | Rise |
| Mean daily maximum | 0.1 C (-0.1 to 0.2) per decade | 0.1 F (-0.2 to 0.4) per decade | 1968 to 2023 | 48 | Not clearly different from zero |
| Mean daily minimum | 0.2 C (0.1 to 0.4) per decade | 0.4 F (0.1 to 0.7) per decade | 1968 to 2023 | 48 | 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
1967 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.2 C (99.0 F) | 2012 | 32.2 C (90.0 F) | 60 |
| Coldest night (TNn) | -28.9 C (-20.0 F) | 1985 | -19.4 C (-2.9 F) | 60 |
| Wettest day (Rx1day) | 131.1 mm (5.2 in) | 1986 | 53.0 mm (2.1 in) | 60 |
| Wettest five days (Rx5day) | 259.9 mm (10.2 in) | 2001 | 96.0 mm (3.8 in) | 60 |
| Longest dry spell (CDD) | 25 days | 1987 | 13 days | 60 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1967 | 31.7 C (89.1 F) |
| 1968 | 32.2 C (90.0 F) |
| 1969 | 33.3 C (91.9 F) |
| 1970 | 33.3 C (91.9 F) |
| 1971 | 32.8 C (91.0 F) |
| 1972 | 31.7 C (89.1 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 32.2 C (90.0 F) |
| 1975 | 32.2 C (90.0 F) |
| 1976 | 32.2 C (90.0 F) |
| 1977 | 33.3 C (91.9 F) |
| 1978 | 32.2 C (90.0 F) |
| 1979 | 31.1 C (88.0 F) |
| 1980 | 33.9 C (93.0 F) |
| 1981 | 30.6 C (87.1 F) |
| 1982 | 30.6 C (87.1 F) |
| 1983 | 34.4 C (93.9 F) |
| 1984 | 32.2 C (90.0 F) |
| 1985 | 32.8 C (91.0 F) |
| 1986 | 33.3 C (91.9 F) |
| 1987 | 33.3 C (91.9 F) |
| 1988 | 34.4 C (93.9 F) |
| 1989 | 30.0 C (86.0 F) |
| 1990 | 31.1 C (88.0 F) |
| 1991 | 32.8 C (91.0 F) |
| 1992 | 30.6 C (87.1 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 32.2 C (90.0 F) |
| 1995 | 32.8 C (91.0 F) |
| 1996 | 31.1 C (88.0 F) |
| 1997 | 30.0 C (86.0 F) |
| 1998 | 32.2 C (90.0 F) |
| 1999 | 33.3 C (91.9 F) |
| 2000 | 29.4 C (84.9 F) |
| 2001 | 30.6 C (87.1 F) |
| 2002 | 32.2 C (90.0 F) |
| 2003 | 30.0 C (86.0 F) |
| 2004 | 30.0 C (86.0 F) |
| 2005 | 32.2 C (90.0 F) |
| 2006 | 31.7 C (89.1 F) |
| 2007 | 35.6 C (96.1 F) |
| 2008 | 31.7 C (89.1 F) |
| 2009 | 30.6 C (87.1 F) |
| 2010 | 33.3 C (91.9 F) |
| 2011 | 33.3 C (91.9 F) |
| 2012 | 37.2 C (99.0 F) |
| 2013 | 32.8 C (91.0 F) |
| 2014 | 31.1 C (88.0 F) |
| 2015 | 32.2 C (90.0 F) |
| 2016 | 31.7 C (89.1 F) |
| 2017 | 30.6 C (87.1 F) |
| 2018 | 31.7 C (89.1 F) |
| 2019 | 33.3 C (91.9 F) |
| 2020 | 31.7 C (89.1 F) |
| 2021 | 31.7 C (89.1 F) |
| 2022 | 31.7 C (89.1 F) |
| 2023 | 32.2 C (90.0 F) |
| 2024 | 33.9 C (93.0 F) |
| 2025 | 31.1 C (88.0 F) |
| 2026 | 31.7 C (89.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1967 | -15.0 C (5.0 F) |
| 1968 | -23.9 C (-11.0 F) |
| 1969 | -21.1 C (-6.0 F) |
| 1970 | -24.4 C (-11.9 F) |
| 1971 | -18.9 C (-2.0 F) |
| 1972 | -24.4 C (-11.9 F) |
| 1973 | -19.4 C (-2.9 F) |
| 1974 | -12.8 C (9.0 F) |
| 1975 | -16.1 C (3.0 F) |
| 1976 | -20.0 C (-4.0 F) |
| 1977 | -27.2 C (-17.0 F) |
| 1978 | -25.0 C (-13.0 F) |
| 1979 | -23.9 C (-11.0 F) |
| 1980 | -22.8 C (-9.0 F) |
| 1981 | -23.9 C (-11.0 F) |
| 1982 | -27.8 C (-18.0 F) |
| 1983 | -25.6 C (-14.1 F) |
| 1984 | -25.6 C (-14.1 F) |
| 1985 | -28.9 C (-20.0 F) |
| 1986 | -18.9 C (-2.0 F) |
| 1987 | -21.7 C (-7.1 F) |
| 1988 | -17.8 C (0.0 F) |
| 1989 | -26.7 C (-16.1 F) |
| 1990 | -16.7 C (1.9 F) |
| 1991 | -16.7 C (1.9 F) |
| 1992 | -16.7 C (1.9 F) |
| 1993 | -17.2 C (1.0 F) |
| 1994 | -28.3 C (-18.9 F) |
| 1995 | -20.0 C (-4.0 F) |
| 1996 | -26.7 C (-16.1 F) |
| 1997 | -18.3 C (-0.9 F) |
| 1998 | -16.1 C (3.0 F) |
| 1999 | -15.0 C (5.0 F) |
| 2000 | -23.3 C (-9.9 F) |
| 2001 | -16.7 C (1.9 F) |
| 2002 | -15.6 C (3.9 F) |
| 2003 | -18.3 C (-0.9 F) |
| 2004 | -21.7 C (-7.1 F) |
| 2005 | -19.4 C (-2.9 F) |
| 2006 | -16.7 C (1.9 F) |
| 2007 | -22.2 C (-8.0 F) |
| 2008 | -16.1 C (3.0 F) |
| 2009 | -19.4 C (-2.9 F) |
| 2010 | -18.3 C (-0.9 F) |
| 2011 | -16.1 C (3.0 F) |
| 2012 | -12.8 C (9.0 F) |
| 2013 | -15.6 C (3.9 F) |
| 2014 | -22.8 C (-9.0 F) |
| 2015 | -27.2 C (-17.0 F) |
| 2016 | -19.4 C (-2.9 F) |
| 2017 | -17.8 C (0.0 F) |
| 2018 | -21.1 C (-6.0 F) |
| 2019 | -20.0 C (-4.0 F) |
| 2020 | -13.3 C (8.1 F) |
| 2021 | -13.9 C (7.0 F) |
| 2022 | -17.8 C (0.0 F) |
| 2023 | -12.8 C (9.0 F) |
| 2024 | -15.6 C (3.9 F) |
| 2025 | -21.1 C (-6.0 F) |
| 2026 | -18.9 C (-2.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1967 | 45.2 mm (1.8 in) |
| 1968 | 35.1 mm (1.4 in) |
| 1969 | 60.7 mm (2.4 in) |
| 1970 | 60.7 mm (2.4 in) |
| 1971 | 40.4 mm (1.6 in) |
| 1972 | 55.1 mm (2.2 in) |
| 1973 | 55.9 mm (2.2 in) |
| 1974 | 56.4 mm (2.2 in) |
| 1975 | 33.0 mm (1.3 in) |
| 1976 | 66.0 mm (2.6 in) |
| 1977 | 48.3 mm (1.9 in) |
| 1978 | 51.8 mm (2.0 in) |
| 1979 | 46.2 mm (1.8 in) |
| 1980 | 48.0 mm (1.9 in) |
| 1981 | 50.8 mm (2.0 in) |
| 1982 | 74.4 mm (2.9 in) |
| 1983 | 73.7 mm (2.9 in) |
| 1984 | 43.2 mm (1.7 in) |
| 1985 | 86.1 mm (3.4 in) |
| 1986 | 131.1 mm (5.2 in) |
| 1987 | 51.1 mm (2.0 in) |
| 1988 | 45.7 mm (1.8 in) |
| 1989 | 44.2 mm (1.7 in) |
| 1990 | 57.9 mm (2.3 in) |
| 1991 | 67.1 mm (2.6 in) |
| 1992 | 42.2 mm (1.7 in) |
| 1993 | 47.2 mm (1.9 in) |
| 1994 | 51.8 mm (2.0 in) |
| 1995 | 42.9 mm (1.7 in) |
| 1996 | 49.5 mm (1.9 in) |
| 1997 | 58.9 mm (2.3 in) |
| 1998 | 67.3 mm (2.6 in) |
| 1999 | 44.2 mm (1.7 in) |
| 2000 | 62.2 mm (2.4 in) |
| 2001 | 106.2 mm (4.2 in) |
| 2002 | 65.0 mm (2.6 in) |
| 2003 | 61.7 mm (2.4 in) |
| 2004 | 58.4 mm (2.3 in) |
| 2005 | 62.7 mm (2.5 in) |
| 2006 | 45.5 mm (1.8 in) |
| 2007 | 46.7 mm (1.8 in) |
| 2008 | 51.8 mm (2.0 in) |
| 2009 | 44.2 mm (1.7 in) |
| 2010 | 76.2 mm (3.0 in) |
| 2011 | 54.1 mm (2.1 in) |
| 2012 | 47.8 mm (1.9 in) |
| 2013 | 62.7 mm (2.5 in) |
| 2014 | 49.5 mm (1.9 in) |
| 2015 | 62.7 mm (2.5 in) |
| 2016 | 128.3 mm (5.1 in) |
| 2017 | 49.8 mm (2.0 in) |
| 2018 | 73.7 mm (2.9 in) |
| 2019 | 29.0 mm (1.1 in) |
| 2020 | 45.7 mm (1.8 in) |
| 2021 | 55.9 mm (2.2 in) |
| 2022 | 74.7 mm (2.9 in) |
| 2023 | 68.6 mm (2.7 in) |
| 2024 | 36.8 mm (1.4 in) |
| 2025 | 43.2 mm (1.7 in) |
| 2026 | 68.8 mm (2.7 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1967 | 69.1 mm (2.7 in) |
| 1968 | 77.5 mm (3.1 in) |
| 1969 | 127.5 mm (5.0 in) |
| 1970 | 94.2 mm (3.7 in) |
| 1971 | 85.4 mm (3.4 in) |
| 1972 | 128.5 mm (5.1 in) |
| 1973 | 119.7 mm (4.7 in) |
| 1974 | 105.0 mm (4.1 in) |
| 1975 | 59.2 mm (2.3 in) |
| 1976 | 119.5 mm (4.7 in) |
| 1977 | 66.6 mm (2.6 in) |
| 1978 | 109.3 mm (4.3 in) |
| 1979 | 98.0 mm (3.9 in) |
| 1980 | 99.6 mm (3.9 in) |
| 1981 | 71.2 mm (2.8 in) |
| 1982 | 105.5 mm (4.2 in) |
| 1983 | 129.7 mm (5.1 in) |
| 1984 | 62.0 mm (2.4 in) |
| 1985 | 143.8 mm (5.7 in) |
| 1986 | 185.2 mm (7.3 in) |
| 1987 | 92.4 mm (3.6 in) |
| 1988 | 98.8 mm (3.9 in) |
| 1989 | 133.7 mm (5.3 in) |
| 1990 | 96.8 mm (3.8 in) |
| 1991 | 114.1 mm (4.5 in) |
| 1992 | 66.1 mm (2.6 in) |
| 1993 | 63.5 mm (2.5 in) |
| 1994 | 96.6 mm (3.8 in) |
| 1995 | 115.6 mm (4.6 in) |
| 1996 | 85.4 mm (3.4 in) |
| 1997 | 102.4 mm (4.0 in) |
| 1998 | 117.1 mm (4.6 in) |
| 1999 | 83.8 mm (3.3 in) |
| 2000 | 95.4 mm (3.8 in) |
| 2001 | 259.9 mm (10.2 in) |
| 2002 | 66.3 mm (2.6 in) |
| 2003 | 93.8 mm (3.7 in) |
| 2004 | 112.6 mm (4.4 in) |
| 2005 | 76.0 mm (3.0 in) |
| 2006 | 128.1 mm (5.0 in) |
| 2007 | 93.3 mm (3.7 in) |
| 2008 | 71.8 mm (2.8 in) |
| 2009 | 107.7 mm (4.2 in) |
| 2010 | 99.6 mm (3.9 in) |
| 2011 | 83.6 mm (3.3 in) |
| 2012 | 68.4 mm (2.7 in) |
| 2013 | 68.6 mm (2.7 in) |
| 2014 | 73.7 mm (2.9 in) |
| 2015 | 122.5 mm (4.8 in) |
| 2016 | 201.2 mm (7.9 in) |
| 2017 | 75.3 mm (3.0 in) |
| 2018 | 118.7 mm (4.7 in) |
| 2019 | 57.6 mm (2.3 in) |
| 2020 | 89.1 mm (3.5 in) |
| 2021 | 78.7 mm (3.1 in) |
| 2022 | 143.3 mm (5.6 in) |
| 2023 | 100.3 mm (3.9 in) |
| 2024 | 60.5 mm (2.4 in) |
| 2025 | 80.3 mm (3.2 in) |
| 2026 | 91.9 mm (3.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1967 | 24 days |
| 1968 | 14 days |
| 1969 | 13 days |
| 1970 | 11 days |
| 1971 | 12 days |
| 1972 | 8 days |
| 1973 | 14 days |
| 1974 | 23 days |
| 1975 | 12 days |
| 1976 | 13 days |
| 1977 | 20 days |
| 1978 | 11 days |
| 1979 | 13 days |
| 1980 | 15 days |
| 1981 | 16 days |
| 1982 | 14 days |
| 1983 | 11 days |
| 1984 | 17 days |
| 1985 | 16 days |
| 1986 | 11 days |
| 1987 | 25 days |
| 1988 | 14 days |
| 1989 | 11 days |
| 1990 | 15 days |
| 1991 | 24 days |
| 1992 | 9 days |
| 1993 | 17 days |
| 1994 | 13 days |
| 1995 | 14 days |
| 1996 | 9 days |
| 1997 | 12 days |
| 1998 | 10 days |
| 1999 | 21 days |
| 2000 | 12 days |
| 2001 | 18 days |
| 2002 | 20 days |
| 2003 | 13 days |
| 2004 | 12 days |
| 2005 | 25 days |
| 2006 | 11 days |
| 2007 | 17 days |
| 2008 | 11 days |
| 2009 | 13 days |
| 2010 | 22 days |
| 2011 | 10 days |
| 2012 | 12 days |
| 2013 | 12 days |
| 2014 | 19 days |
| 2015 | 17 days |
| 2016 | 17 days |
| 2017 | 23 days |
| 2018 | 8 days |
| 2019 | 16 days |
| 2020 | 12 days |
| 2021 | 10 days |
| 2022 | 10 days |
| 2023 | 12 days |
| 2024 | 15 days |
| 2025 | 13 days |
| 2026 | 7 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
48 years with a frostAcross 48 years with a frost, the median last spring frost at Summersville Lake falls on 29 April and the median first autumn frost on 13 October, which leaves a median of 166 days between them.
Fitted over all years, the growing season changes by +4.4 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1988 to 2023) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 29 April | n/a | 28 April | n/a | -2.2 days per decade |
| First autumn frost | 13 October | n/a | 18 October | n/a | +2.2 days per decade |
| Growing days | 166 days | n/a | 172 days | n/a | +4.4 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
56 years, 1967 to 2024A day with at least 53.2 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 130.6 mm (5.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 53.2 mm (2.1 in) | |
| 5 years | 68.5 mm (2.7 in) | |
| 10 years | 80.5 mm (3.2 in) | |
| 25 years | 98.2 mm (3.9 in) | |
| 50 years | 113.5 mm (4.5 in) | |
| 100 years | 130.6 mm (5.1 in) | Longer than the 56 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, 56 years of values from 1967 to 2024.
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: 131.1 mm (5.2 in) in 1986; 128.3 mm (5.1 in) in 2016; 106.2 mm (4.2 in) in 2001.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2004 to 2023 against 1961 to 1990Over 2004 to 2023, Summersville Lake had a mean temperature of 10.9 C (51.7 F) and 1,237.5 mm (48.7 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Buckhannon (United States, 103 km away), Catoctin Mtn Park (United States, 335 km away) and Fairmont (United States, 153 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Buckhannon | United States | 103 km (64 mi) | 10.9 C (51.6 F) | 1,216.3 mm (47.9 in) | 0.34 |
| Catoctin Mtn Park | United States | 335 km (208 mi) | 10.6 C (51.1 F) | 1,229.2 mm (48.4 in) | 0.67 |
| Fairmont | United States | 153 km (95 mi) | 11.1 C (51.9 F) | 1,113.3 mm (43.8 in) | 0.71 |
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).