Mettler Threshold Days by Year
13 fixed thresholds counted per year at Mettler (ASN00009754): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Mettler Thresholds
- Mettler: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 1976 with 25.
- Mettler: days with 25 mm (0.98 in) or more of precipitation in 50 years, most in 1978 with 7.
- Mettler: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 2005 with 3.
- Mettler: days with a maximum temperature at or above 30 C (86 F) in 17 years, most in 1972 with 32.
- 13 fixed thresholds have at least one qualifying day at Mettler.
Days at or above 30 C (86 F)
17 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1967 | 14 | 14 |
| 1971 | 13 | 20.1 |
| 1972 | 32 | 20.1 |
| 1973 | 18 | 20.1 |
| 1974 | 21 | 20.1 |
| 1976 | 14 | 20.1 |
| 1977 | 24 | 20.1 |
| 1978 | 21 | 20.1 |
| 1979 | 18 | 20.1 |
| 1980 | 20 | 18.9 |
| 1981 | 24 | 18.9 |
| 1982 | 21 | 18.9 |
| 1983 | 16 | 18.9 |
| 1984 | 16 | 18.9 |
| 1985 | 13 | 18.9 |
| 1988 | 22 | 18.9 |
| 1991 | 22 | 22 |
| Year | First date | Last date |
|---|---|---|
| 1967 | 1967-01-17 | 1967-11-26 |
| 1971 | 1971-01-21 | 1971-12-15 |
| 1972 | 1972-01-13 | 1972-12-31 |
| 1973 | 1973-01-01 | 1973-12-18 |
| 1974 | 1974-01-07 | 1974-12-20 |
| 1976 | 1976-01-28 | 1976-12-18 |
| 1977 | 1977-01-04 | 1977-12-28 |
| 1978 | 1978-01-04 | 1978-12-31 |
| 1979 | 1979-01-03 | 1979-12-29 |
| 1980 | 1980-01-01 | 1980-12-29 |
| 1981 | 1981-01-04 | 1981-12-28 |
| 1982 | 1982-01-04 | 1982-12-30 |
| 1983 | 1983-01-06 | 1983-12-23 |
| 1984 | 1984-01-09 | 1984-12-27 |
| 1985 | 1985-01-09 | 1985-11-07 |
| 1988 | 1988-01-04 | 1988-11-11 |
| 1991 | 1991-01-07 | 1991-12-11 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 17 | 32 | 1972 | 22 |
| 35 C (95 F): Days | 17 | 9 | 1972 | 7 |
| 40 C (104 F): Days | 12 | 3 | 1991 | 3 |
| 45 C (113 F): Days | 1 | 2 | 1991 | 2 |
| 90 F (32.2 C): Days | 17 | 18 | 1972 | 14 |
| 100 F (37.8 C): Days | 15 | 4 | 1981 | 4 |
| 110 F (43.3 C): Days | 1 | 2 | 1991 | 2 |
| 0 C (32 F): Frost days (min | 7 | 3 | 1971 | 1 |
| 20 C (68 F): Tropical nights (min | 5 | 1 | 1978 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 53 | 25 | 1976 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 50 | 7 | 1978 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 24 | 3 | 2005 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 5 | 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 1967.
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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-16).