Bluefield Mercer Co AP Threshold Days by Year (USW00003859)
13 fixed thresholds counted per year at Bluefield Mercer Co AP (USW00003859): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Bluefield Mercer Co AP Thresholds
- Bluefield Mercer Co AP: days with a maximum temperature at or below 0 C (32 F) in 67 years, most in 1960 with 54.
- Bluefield Mercer Co AP: nights with a minimum temperature at or below 0 C (32 F) in 67 years, most in 1960 with 123.
- Bluefield Mercer Co AP: nights with a minimum temperature at or below -10 C (14 F) in 67 years, most in 1977 with 39.
- Bluefield Mercer Co AP: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 2004 with 49.
- 13 fixed thresholds have at least one qualifying day at Bluefield Mercer Co AP.
Days at or above 30 C (86 F)
53 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1960 | 2 | 4.3 |
| 1963 | 1 | 4.3 |
| 1964 | 1 | 4.3 |
| 1965 | 2 | 4.3 |
| 1966 | 9 | 4.3 |
| 1967 | 5 | 4.3 |
| 1968 | 2 | 4.3 |
| 1969 | 12 | 4.3 |
| 1970 | 1 | 4.5 |
| 1976 | 2 | 4.5 |
| 1977 | 13 | 4.5 |
| 1978 | 2 | 4.5 |
| 1980 | 3 | 10.4 |
| 1983 | 8 | 10.4 |
| 1984 | 2 | 10.4 |
| 1985 | 2 | 10.4 |
| 1986 | 5 | 10.4 |
| 1987 | 22 | 10.4 |
| 1988 | 39 | 10.4 |
| 1989 | 2 | 10.4 |
| 1990 | 8 | 13.6 |
| 1991 | 13 | 13.6 |
| 1993 | 23 | 13.6 |
| 1994 | 11 | 13.6 |
| 1995 | 21 | 13.6 |
| 1996 | 5 | 13.6 |
| 1997 | 5 | 13.6 |
| 1998 | 18 | 13.6 |
| 1999 | 18 | 13.6 |
| 2002 | 7 | 19.1 |
| 2004 | 4 | 19.1 |
| 2005 | 24 | 19.1 |
| 2006 | 26 | 19.1 |
| 2007 | 55 | 19.1 |
| 2008 | 14 | 19.1 |
| 2009 | 4 | 19.1 |
| 2010 | 37 | 17.6 |
| 2011 | 45 | 17.6 |
| 2012 | 28 | 17.6 |
| 2013 | 14 | 17.6 |
| 2014 | 12 | 17.6 |
| 2015 | 21 | 17.6 |
| 2016 | 3 | 17.6 |
| 2017 | 2 | 17.6 |
| 2018 | 2 | 17.6 |
| 2019 | 12 | 17.6 |
| 2020 | 2 | 4.6 |
| 2021 | 4 | 4.6 |
| 2022 | 3 | 4.6 |
| 2023 | 1 | 4.6 |
| 2024 | 13 | 4.6 |
| 2025 | 4 | 4.6 |
| 2026 | 5 | 4.6 |
| Year | First date | Last date |
|---|---|---|
| 1960 | 1960-08-03 | 1960-08-04 |
| 1963 | 1963-08-03 | 1963-08-03 |
| 1964 | 1964-06-23 | 1964-06-23 |
| 1965 | 1965-08-16 | 1965-08-17 |
| 1966 | 1966-06-09 | 1966-07-27 |
| 1967 | 1967-06-16 | 1967-07-01 |
| 1968 | 1968-06-30 | 1968-08-19 |
| 1969 | 1969-06-26 | 1969-07-20 |
| 1970 | 1970-07-19 | 1970-07-19 |
| 1976 | 1976-04-18 | 1976-04-20 |
| 1977 | 1977-07-06 | 1977-09-02 |
| 1978 | 1978-07-21 | 1978-07-23 |
| 1980 | 1980-07-16 | 1980-08-11 |
| 1983 | 1983-07-20 | 1983-08-23 |
| 1984 | 1984-06-07 | 1984-06-08 |
| 1985 | 1985-05-14 | 1985-06-10 |
| 1986 | 1986-07-06 | 1986-08-15 |
| 1987 | 1987-07-20 | 1987-08-26 |
| 1988 | 1988-06-14 | 1988-08-27 |
| 1989 | 1989-07-23 | 1989-07-24 |
| 1990 | 1990-04-27 | 1990-09-07 |
| 1991 | 1991-05-26 | 1991-09-18 |
| 1993 | 1993-07-04 | 1993-09-03 |
| 1994 | 1994-06-16 | 1994-08-13 |
| 1995 | 1995-07-13 | 1995-08-31 |
| 1996 | 1996-05-18 | 1996-06-17 |
| 1997 | 1997-06-21 | 1997-08-17 |
| 1998 | 1998-05-30 | 1998-09-20 |
| 1999 | 1999-06-09 | 1999-08-17 |
| 2002 | 2002-06-25 | 2002-08-14 |
| 2004 | 2004-07-10 | 2004-08-28 |
| 2005 | 2005-06-05 | 2005-09-19 |
| 2006 | 2006-05-28 | 2006-08-28 |
| 2007 | 2007-05-01 | 2007-10-08 |
| 2008 | 2008-06-05 | 2008-09-14 |
| 2009 | 2009-04-26 | 2009-08-10 |
| 2010 | 2010-04-02 | 2010-09-23 |
| 2011 | 2011-05-29 | 2011-09-04 |
| 2012 | 2012-05-03 | 2012-09-07 |
| 2013 | 2013-05-29 | 2013-09-10 |
| 2014 | 2014-05-07 | 2014-09-02 |
| 2015 | 2015-05-11 | 2015-09-07 |
| 2016 | 2016-07-23 | 2016-07-25 |
| 2017 | 2017-04-29 | 2017-07-22 |
| 2018 | 2018-06-30 | 2018-07-03 |
| 2019 | 2019-07-20 | 2019-10-03 |
| 2020 | 2020-07-18 | 2020-07-21 |
| 2021 | 2021-08-11 | 2021-08-25 |
| 2022 | 2022-05-20 | 2022-06-16 |
| 2023 | 2023-07-28 | 2023-07-28 |
| 2024 | 2024-06-21 | 2024-08-30 |
| 2025 | 2025-06-23 | 2025-07-07 |
| 2026 | 2026-07-01 | 2026-09-04 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 53 | 55 | 2007 | 5 |
| 35 C (95 F): Days | 3 | 2 | 1988 | 2 |
| 90 F (32.2 C): Days | 21 | 18 | 2007 | 1 |
| 0 C (32 F): Ice days (max | 67 | 54 | 1960 | 19 |
| 0 C (32 F): Frost days (min | 67 | 123 | 1960 | 51 |
| -10 C (14 F): Days with min | 67 | 39 | 1977 | 18 |
| -20 C (-4 F): Days with min | 26 | 5 | 1963 | 2 |
| 20 C (68 F): Tropical nights (min | 60 | 33 | 2010 | 9 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 67 | 49 | 2004 | 33 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 67 | 12 | 1972 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 39 | 4 | 2004 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 52 | 6 | 1966 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 7 | 2 | 2018 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.
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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).