Walden Threshold Days by Year (USC00058756)
13 fixed thresholds counted per year at Walden (USC00058756): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Walden Thresholds
- Walden: days with a maximum temperature at or below 0 C (32 F) in 90 years, most in 2022 with 105.
- Walden: nights with a minimum temperature at or below 0 C (32 F) in 90 years, most in 2021 with 287.
- Walden: nights with a minimum temperature at or below -10 C (14 F) in 90 years, most in 1952 with 148.
- Walden: nights with a minimum temperature at or below -20 C (-4 F) in 90 years, most in 2022 with 53.
- 13 fixed thresholds have at least one qualifying day at Walden.
Days at or above 30 C (86 F)
70 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1897 | 1 | 6.5 |
| 1898 | 12 | 6.5 |
| 1900 | 28 | 24 |
| 1901 | 20 | 24 |
| 1938 | 2 | 5 |
| 1939 | 8 | 5 |
| 1940 | 4 | 2.6 |
| 1941 | 2 | 2.6 |
| 1942 | 3 | 2.6 |
| 1943 | 2 | 2.6 |
| 1945 | 1 | 2.6 |
| 1946 | 2 | 2.6 |
| 1947 | 6 | 2.6 |
| 1948 | 1 | 2.6 |
| 1954 | 7 | 2.5 |
| 1956 | 1 | 2.5 |
| 1958 | 1 | 2.5 |
| 1959 | 1 | 2.5 |
| 1960 | 2 | 2.4 |
| 1961 | 1 | 2.4 |
| 1964 | 1 | 2.4 |
| 1966 | 4 | 2.4 |
| 1969 | 4 | 2.4 |
| 1970 | 2 | 2.7 |
| 1971 | 2 | 2.7 |
| 1972 | 2 | 2.7 |
| 1975 | 1 | 2.7 |
| 1978 | 4 | 2.7 |
| 1979 | 5 | 2.7 |
| 1980 | 3 | 4.2 |
| 1981 | 2 | 4.2 |
| 1982 | 6 | 4.2 |
| 1983 | 2 | 4.2 |
| 1984 | 1 | 4.2 |
| 1985 | 5 | 4.2 |
| 1986 | 1 | 4.2 |
| 1987 | 3 | 4.2 |
| 1988 | 8 | 4.2 |
| 1989 | 11 | 4.2 |
| 1990 | 8 | 4.3 |
| 1991 | 3 | 4.3 |
| 1992 | 1 | 4.3 |
| 1993 | 1 | 4.3 |
| 1994 | 3 | 4.3 |
| 1995 | 4 | 4.3 |
| 1996 | 5 | 4.3 |
| 1997 | 2 | 4.3 |
| 1998 | 12 | 4.3 |
| 1999 | 4 | 4.3 |
| 2000 | 14 | 8.8 |
| 2001 | 16 | 8.8 |
| 2002 | 21 | 8.8 |
| 2003 | 16 | 8.8 |
| 2005 | 4 | 8.8 |
| 2006 | 4 | 8.8 |
| 2007 | 2 | 8.8 |
| 2008 | 1 | 8.8 |
| 2009 | 1 | 8.8 |
| 2010 | 1 | 2.2 |
| 2012 | 5 | 2.2 |
| 2013 | 2 | 2.2 |
| 2017 | 1 | 2.2 |
| 2018 | 2 | 2.2 |
| 2020 | 1 | 4.4 |
| 2021 | 6 | 4.4 |
| 2022 | 3 | 4.4 |
| 2023 | 3 | 4.4 |
| 2024 | 3 | 4.4 |
| 2025 | 3 | 4.4 |
| 2026 | 12 | 4.4 |
| Year | First date | Last date |
|---|---|---|
| 1897 | 1897-08-01 | 1897-08-01 |
| 1898 | 1898-06-17 | 1898-09-30 |
| 1900 | 1900-06-20 | 1900-08-29 |
| 1901 | 1901-07-01 | 1901-08-03 |
| 1938 | 1938-08-01 | 1938-08-02 |
| 1939 | 1939-07-10 | 1939-07-20 |
| 1940 | 1940-07-21 | 1940-08-14 |
| 1941 | 1941-07-23 | 1941-08-05 |
| 1942 | 1942-07-13 | 1942-07-15 |
| 1943 | 1943-07-25 | 1943-07-26 |
| 1945 | 1945-07-30 | 1945-07-30 |
| 1946 | 1946-07-22 | 1946-07-23 |
| 1947 | 1947-07-13 | 1947-08-07 |
| 1948 | 1948-08-30 | 1948-08-30 |
| 1954 | 1954-06-22 | 1954-08-28 |
| 1956 | 1956-06-12 | 1956-06-12 |
| 1958 | 1958-08-08 | 1958-08-08 |
| 1959 | 1959-09-05 | 1959-09-05 |
| 1960 | 1960-07-20 | 1960-07-26 |
| 1961 | 1961-06-27 | 1961-06-27 |
| 1964 | 1964-07-20 | 1964-07-20 |
| 1966 | 1966-07-15 | 1966-07-31 |
| 1969 | 1969-07-28 | 1969-08-26 |
| 1970 | 1970-06-27 | 1970-08-02 |
| 1971 | 1971-07-13 | 1971-07-17 |
| 1972 | 1972-07-30 | 1972-08-13 |
| 1975 | 1975-07-01 | 1975-07-01 |
| 1978 | 1978-07-27 | 1978-09-07 |
| 1979 | 1979-07-11 | 1979-08-07 |
| 1980 | 1980-07-21 | 1980-08-08 |
| 1981 | 1981-06-25 | 1981-08-05 |
| 1982 | 1982-07-20 | 1982-08-15 |
| 1983 | 1983-08-08 | 1983-08-09 |
| 1984 | 1984-07-21 | 1984-07-21 |
| 1985 | 1985-07-06 | 1985-08-26 |
| 1986 | 1986-08-18 | 1986-08-18 |
| 1987 | 1987-07-21 | 1987-07-25 |
| 1988 | 1988-06-19 | 1988-08-25 |
| 1989 | 1989-06-19 | 1989-07-21 |
| 1990 | 1990-06-26 | 1990-09-15 |
| 1991 | 1991-07-14 | 1991-08-31 |
| 1992 | 1992-08-10 | 1992-08-10 |
| 1993 | 1993-07-29 | 1993-07-29 |
| 1994 | 1994-07-22 | 1994-08-07 |
| 1995 | 1995-07-08 | 1995-09-04 |
| 1996 | 1996-07-04 | 1996-08-14 |
| 1997 | 1997-07-18 | 1997-07-22 |
| 1998 | 1998-07-16 | 1998-09-07 |
| 1999 | 1999-07-06 | 1999-07-27 |
| 2000 | 2000-07-12 | 2000-09-16 |
| 2001 | 2001-06-23 | 2001-08-06 |
| 2002 | 2002-06-24 | 2002-08-01 |
| 2003 | 2003-07-10 | 2003-08-12 |
| 2005 | 2005-07-14 | 2005-07-23 |
| 2006 | 2006-07-16 | 2006-07-30 |
| 2007 | 2007-07-03 | 2007-07-23 |
| 2008 | 2008-07-21 | 2008-07-21 |
| 2009 | 2009-08-23 | 2009-08-23 |
| 2010 | 2010-07-27 | 2010-07-27 |
| 2012 | 2012-06-25 | 2012-07-21 |
| 2013 | 2013-06-28 | 2013-07-12 |
| 2017 | 2017-07-20 | 2017-07-20 |
| 2018 | 2018-07-11 | 2018-08-13 |
| 2020 | 2020-08-19 | 2020-08-19 |
| 2021 | 2021-06-14 | 2021-07-30 |
| 2022 | 2022-07-18 | 2022-08-12 |
| 2023 | 2023-07-25 | 2023-08-18 |
| 2024 | 2024-07-14 | 2024-08-04 |
| 2025 | 2025-08-20 | 2025-08-22 |
| 2026 | 2026-07-13 | 2026-08-09 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 70 | 28 | 1900 | 12 |
| 90 F (32.2 C): Days | 16 | 12 | 1900 | 2 |
| 0 C (32 F): Ice days (max | 90 | 105 | 2022 | 20 |
| 0 C (32 F): Frost days (min | 90 | 287 | 2021 | 187 |
| -10 C (14 F): Days with min | 90 | 148 | 1952 | 48 |
| -20 C (-4 F): Days with min | 90 | 53 | 2022 | 6 |
| -30 C (-22 F): Days with min | 81 | 12 | 2022 | 3 |
| -40 C (-40 F): Days with min | 8 | 2 | 1962 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 89 | 12 | 1995 | 3 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 18 | 2 | 1947 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 1 | 1 | 1952 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 75 | 9 | 2013 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 13 | 2 | 1982 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.
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).