Ray Brook Threshold Days by Year (USC00306957)
16 fixed thresholds counted per year at Ray Brook (USC00306957): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ray Brook Thresholds
- Ray Brook: days with a maximum temperature at or below 0 C (32 F) in 31 years, most in 1978 with 94.
- Ray Brook: days with 10 cm (3.9 in) or more of snowfall in 31 years, most in 1993 with 13.
- Ray Brook: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 1999 with 22.
- Ray Brook: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1976 with 39.
- 16 fixed thresholds have at least one qualifying day at Ray Brook.
Days at or above 30 C (86 F)
28 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1971 | 4 | 5.1 |
| 1972 | 1 | 5.1 |
| 1973 | 7 | 5.1 |
| 1974 | 2 | 5.1 |
| 1975 | 10 | 5.1 |
| 1976 | 2 | 5.1 |
| 1977 | 6 | 5.1 |
| 1978 | 9 | 5.1 |
| 1981 | 2 | 7.5 |
| 1982 | 2 | 7.5 |
| 1983 | 8 | 7.5 |
| 1985 | 1 | 7.5 |
| 1986 | 1 | 7.5 |
| 1987 | 13 | 7.5 |
| 1988 | 21 | 7.5 |
| 1989 | 12 | 7.5 |
| 1990 | 6 | 8.8 |
| 1991 | 8 | 8.8 |
| 1993 | 8 | 8.8 |
| 1994 | 8 | 8.8 |
| 1995 | 15 | 8.8 |
| 1996 | 2 | 8.8 |
| 1997 | 3 | 8.8 |
| 1998 | 7 | 8.8 |
| 1999 | 22 | 8.8 |
| 2000 | 1 | 5 |
| 2001 | 10 | 5 |
| 2003 | 4 | 5 |
| Year | First date | Last date |
|---|---|---|
| 1971 | 1971-05-20 | 1971-08-20 |
| 1972 | 1972-07-13 | 1972-07-13 |
| 1973 | 1973-07-09 | 1973-09-06 |
| 1974 | 1974-06-11 | 1974-07-15 |
| 1975 | 1975-05-21 | 1975-08-04 |
| 1976 | 1976-06-16 | 1976-08-22 |
| 1977 | 1977-05-22 | 1977-07-21 |
| 1978 | 1978-05-27 | 1978-08-20 |
| 1981 | 1981-06-17 | 1981-07-09 |
| 1982 | 1982-07-17 | 1982-07-19 |
| 1983 | 1983-06-14 | 1983-07-13 |
| 1985 | 1985-08-15 | 1985-08-15 |
| 1986 | 1986-07-20 | 1986-07-20 |
| 1987 | 1987-05-31 | 1987-08-18 |
| 1988 | 1988-06-14 | 1988-08-15 |
| 1989 | 1989-05-19 | 1989-08-02 |
| 1990 | 1990-04-29 | 1990-08-05 |
| 1991 | 1991-05-17 | 1991-08-31 |
| 1993 | 1993-06-26 | 1993-08-28 |
| 1994 | 1994-05-23 | 1994-08-11 |
| 1995 | 1995-06-19 | 1995-08-21 |
| 1996 | 1996-08-07 | 1996-08-08 |
| 1997 | 1997-07-02 | 1997-08-11 |
| 1998 | 1998-05-17 | 1998-07-22 |
| 1999 | 1999-05-31 | 1999-09-06 |
| 2000 | 2000-06-27 | 2000-06-27 |
| 2001 | 2001-06-13 | 2001-08-10 |
| 2003 | 2003-06-25 | 2003-07-09 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 28 | 22 | 1999 | 4 |
| 35 C (95 F): Days | 1 | 1 | 1988 | 1 |
| 90 F (32.2 C): Days | 13 | 10 | 1988 | 2 |
| 0 C (32 F): Ice days (max | 31 | 94 | 1978 | 73 |
| 0 C (32 F): Frost days (min | 24 | 213 | 1980 | 161 |
| -10 C (14 F): Days with min | 24 | 108 | 1978 | 70 |
| -20 C (-4 F): Days with min | 24 | 48 | 1980 | 30 |
| -30 C (-22 F): Days with min | 21 | 14 | 1994 | 7 |
| 20 C (68 F): Tropical nights (min | 6 | 2 | 1988 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 28 | 39 | 1976 | 28 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 28 | 11 | 1990 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 3 | 1982 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1996 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 31 | 13 | 1993 | 6 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 17 | 3 | 1971 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 3 | 1 | 1993 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1971.
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 (2025-12-31).