Altoona 3 W Threshold Days by Year (USC00360140)
15 fixed thresholds counted per year at Altoona 3 W (USC00360140): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Altoona 3 W Thresholds
- Altoona 3 W: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 2018 with 61.
- Altoona 3 W: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1996 with 18.
- Altoona 3 W: days with a maximum temperature at or above 30 C (86 F) in 55 years, most in 2002 with 41.
- Altoona 3 W: days with a maximum temperature at or below 0 C (32 F) in 55 years, most in 1978 with 62.
- 15 fixed thresholds have at least one qualifying day at Altoona 3 W.
Days at or above 30 C (86 F)
55 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1968 | 31 | 27.5 |
| 1969 | 24 | 27.5 |
| 1970 | 31 | 17.2 |
| 1971 | 21 | 17.2 |
| 1972 | 14 | 17.2 |
| 1973 | 26 | 17.2 |
| 1974 | 20 | 17.2 |
| 1975 | 18 | 17.2 |
| 1976 | 10 | 17.2 |
| 1977 | 19 | 17.2 |
| 1978 | 9 | 17.2 |
| 1979 | 4 | 17.2 |
| 1980 | 13 | 16.5 |
| 1981 | 10 | 16.5 |
| 1982 | 9 | 16.5 |
| 1983 | 32 | 16.5 |
| 1984 | 9 | 16.5 |
| 1985 | 15 | 16.5 |
| 1986 | 8 | 16.5 |
| 1987 | 21 | 16.5 |
| 1988 | 39 | 16.5 |
| 1989 | 9 | 16.5 |
| 1990 | 6 | 14.1 |
| 1991 | 27 | 14.1 |
| 1992 | 3 | 14.1 |
| 1993 | 23 | 14.1 |
| 1994 | 16 | 14.1 |
| 1995 | 22 | 14.1 |
| 1996 | 4 | 14.1 |
| 1997 | 12 | 14.1 |
| 2002 | 41 | 19.9 |
| 2003 | 11 | 19.9 |
| 2004 | 5 | 19.9 |
| 2005 | 34 | 19.9 |
| 2006 | 20 | 19.9 |
| 2007 | 22 | 19.9 |
| 2008 | 19 | 19.9 |
| 2009 | 7 | 19.9 |
| 2010 | 34 | 22.5 |
| 2011 | 34 | 22.5 |
| 2012 | 27 | 22.5 |
| 2013 | 22 | 22.5 |
| 2014 | 8 | 22.5 |
| 2015 | 18 | 22.5 |
| 2016 | 30 | 22.5 |
| 2017 | 15 | 22.5 |
| 2018 | 22 | 22.5 |
| 2019 | 15 | 22.5 |
| 2020 | 27 | 20.7 |
| 2021 | 27 | 20.7 |
| 2022 | 16 | 20.7 |
| 2023 | 10 | 20.7 |
| 2024 | 31 | 20.7 |
| 2025 | 26 | 20.7 |
| 2026 | 8 | 20.7 |
| Year | First date | Last date |
|---|---|---|
| 1968 | 1968-06-07 | 1968-09-05 |
| 1969 | 1969-05-30 | 1969-09-02 |
| 1970 | 1970-05-02 | 1970-09-26 |
| 1971 | 1971-05-20 | 1971-09-10 |
| 1972 | 1972-05-29 | 1972-09-18 |
| 1973 | 1973-06-11 | 1973-09-06 |
| 1974 | 1974-05-17 | 1974-08-28 |
| 1975 | 1975-05-22 | 1975-08-27 |
| 1976 | 1976-04-18 | 1976-08-27 |
| 1977 | 1977-05-18 | 1977-09-03 |
| 1978 | 1978-06-28 | 1978-08-20 |
| 1979 | 1979-05-11 | 1979-08-09 |
| 1980 | 1980-06-08 | 1980-09-03 |
| 1981 | 1981-06-16 | 1981-07-21 |
| 1982 | 1982-06-28 | 1982-08-11 |
| 1983 | 1983-06-13 | 1983-09-12 |
| 1984 | 1984-06-09 | 1984-08-11 |
| 1985 | 1985-04-23 | 1985-09-09 |
| 1986 | 1986-06-12 | 1986-08-07 |
| 1987 | 1987-05-30 | 1987-08-18 |
| 1988 | 1988-06-08 | 1988-08-18 |
| 1989 | 1989-06-02 | 1989-09-10 |
| 1990 | 1990-04-28 | 1990-08-29 |
| 1991 | 1991-05-26 | 1991-09-17 |
| 1992 | 1992-07-02 | 1992-07-15 |
| 1993 | 1993-06-19 | 1993-09-03 |
| 1994 | 1994-06-14 | 1994-07-21 |
| 1995 | 1995-06-20 | 1995-09-01 |
| 1996 | 1996-05-19 | 1996-07-01 |
| 1997 | 1997-06-21 | 1997-08-17 |
| 2002 | 2002-04-18 | 2002-09-11 |
| 2003 | 2003-06-23 | 2003-08-22 |
| 2004 | 2004-06-09 | 2004-08-28 |
| 2005 | 2005-06-06 | 2005-09-22 |
| 2006 | 2006-05-29 | 2006-08-14 |
| 2007 | 2007-05-30 | 2007-09-25 |
| 2008 | 2008-05-26 | 2008-09-14 |
| 2009 | 2009-04-26 | 2009-08-18 |
| 2010 | 2010-04-06 | 2010-09-24 |
| 2011 | 2011-05-29 | 2011-09-03 |
| 2012 | 2012-05-03 | 2012-09-07 |
| 2013 | 2013-05-21 | 2013-09-11 |
| 2014 | 2014-06-16 | 2014-08-27 |
| 2015 | 2015-06-11 | 2015-09-19 |
| 2016 | 2016-05-27 | 2016-09-10 |
| 2017 | 2017-05-17 | 2017-09-25 |
| 2018 | 2018-05-15 | 2018-09-06 |
| 2019 | 2019-06-27 | 2019-10-01 |
| 2020 | 2020-06-09 | 2020-08-22 |
| 2021 | 2021-06-05 | 2021-08-26 |
| 2022 | 2022-05-21 | 2022-08-08 |
| 2023 | 2023-06-02 | 2023-09-06 |
| 2024 | 2024-06-17 | 2024-08-28 |
| 2025 | 2025-06-04 | 2025-08-17 |
| 2026 | 2026-05-18 | 2026-07-15 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 55 | 41 | 2002 | 8 |
| 35 C (95 F): Days | 8 | 4 | 1988 | 1 |
| 90 F (32.2 C): Days | 45 | 25 | 1988 | 3 |
| 0 C (32 F): Ice days (max | 55 | 62 | 1978 | 33 |
| 0 C (32 F): Frost days (min | 55 | 157 | 1976 | 73 |
| -10 C (14 F): Days with min | 55 | 50 | 1978 | 26 |
| -20 C (-4 F): Days with min | 33 | 7 | 2014 | 3 |
| 20 C (68 F): Tropical nights (min | 51 | 21 | 1988 | 6 |
| 25 C (77 F): Days with min | 1 | 1 | 2011 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 56 | 61 | 2018 | 25 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 56 | 18 | 1996 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 39 | 4 | 1996 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1997 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 43 | 7 | 1994 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 14 | 1 | 1971 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.
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 (2026-10-12).