John Flannagan Lake Threshold Days by Year (USC00444410)
13 fixed thresholds counted per year at John Flannagan Lake (USC00444410): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for John Flannagan Lake Thresholds
- John Flannagan Lake: days with 10 mm (0.39 in) or more of precipitation in 25 years, most in 1994 with 49.
- John Flannagan Lake: days with 25 mm (0.98 in) or more of precipitation in 25 years, most in 1972 with 14.
- John Flannagan Lake: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 1987 with 7.
- John Flannagan Lake: days with 50 mm (1.97 in) or more of precipitation in 14 years, most in 1998 with 4.
- 13 fixed thresholds have at least one qualifying day at John Flannagan Lake.
Days with 10 mm (0.39 in) or more of precipitation
25 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1970 | 28 | 38.4 |
| 1971 | 34 | 38.4 |
| 1972 | 43 | 38.4 |
| 1973 | 37 | 38.4 |
| 1974 | 37 | 38.4 |
| 1975 | 47 | 38.4 |
| 1976 | 34 | 38.4 |
| 1977 | 39 | 38.4 |
| 1978 | 38 | 38.4 |
| 1979 | 47 | 38.4 |
| 1980 | 30 | 33.1 |
| 1981 | 30 | 33.1 |
| 1982 | 41 | 33.1 |
| 1983 | 29 | 33.1 |
| 1984 | 36 | 33.1 |
| 1986 | 41 | 33.1 |
| 1987 | 25 | 33.1 |
| 1990 | 43 | 40.3 |
| 1994 | 49 | 40.3 |
| 1995 | 43 | 40.3 |
| 1996 | 44 | 40.3 |
| 1997 | 31 | 40.3 |
| 1998 | 37 | 40.3 |
| 1999 | 35 | 40.3 |
| 2026 | 18 | 18 |
| Year | First date | Last date |
|---|---|---|
| 1970 | 1970-02-15 | 1970-12-23 |
| 1971 | 1971-01-01 | 1971-12-20 |
| 1972 | 1972-01-02 | 1972-12-22 |
| 1973 | 1973-03-08 | 1973-12-26 |
| 1974 | 1974-01-01 | 1974-12-28 |
| 1975 | 1975-01-01 | 1975-12-26 |
| 1976 | 1976-01-01 | 1976-12-07 |
| 1977 | 1977-01-15 | 1977-12-25 |
| 1978 | 1978-01-09 | 1978-12-31 |
| 1979 | 1979-01-02 | 1979-12-25 |
| 1980 | 1980-01-14 | 1980-11-24 |
| 1981 | 1981-02-02 | 1981-12-22 |
| 1982 | 1982-01-01 | 1982-12-12 |
| 1983 | 1983-01-21 | 1983-12-12 |
| 1984 | 1984-01-11 | 1984-12-31 |
| 1986 | 1986-01-20 | 1986-12-25 |
| 1987 | 1987-01-19 | 1987-12-26 |
| 1990 | 1990-01-30 | 1990-12-31 |
| 1994 | 1994-01-04 | 1994-12-12 |
| 1995 | 1995-01-12 | 1995-12-19 |
| 1996 | 1996-01-02 | 1996-12-20 |
| 1997 | 1997-01-06 | 1997-12-01 |
| 1998 | 1998-01-08 | 1998-12-24 |
| 1999 | 1999-01-04 | 1999-12-14 |
| 2026 | 2026-02-20 | 2026-10-05 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 1 | 0 | n/a | 37 |
| 35 C (95 F): Days | 1 | 0 | n/a | 2 |
| 90 F (32.2 C): Days | 1 | 0 | n/a | 16 |
| 0 C (32 F): Ice days (max | 1 | 0 | n/a | 8 |
| 0 C (32 F): Frost days (min | 1 | 0 | n/a | 38 |
| -10 C (14 F): Days with min | 1 | 0 | n/a | 5 |
| 20 C (68 F): Tropical nights (min | 1 | 0 | n/a | 6 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 25 | 49 | 1994 | 18 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 25 | 14 | 1972 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 14 | 4 | 1998 | 4 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 16 | 7 | 1987 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1971 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1987 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2026.
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).