Guga Threshold Days by Year
13 fixed thresholds counted per year at Guga (RSM00031421): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Guga Thresholds
- Guga: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1943 with 19.
- Guga: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1943 with 6.
- Guga: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 1980 with 40.
- Guga: days with a maximum temperature at or below 0 C (32 F) in 23 years, most in 1979 with 146.
- 13 fixed thresholds have at least one qualifying day at Guga.
Days at or above 30 C (86 F)
23 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1967 | 11 | 12.7 |
| 1968 | 20 | 12.7 |
| 1969 | 7 | 12.7 |
| 1970 | 28 | 16.4 |
| 1973 | 10 | 16.4 |
| 1975 | 17 | 16.4 |
| 1976 | 9 | 16.4 |
| 1977 | 26 | 16.4 |
| 1978 | 15 | 16.4 |
| 1979 | 10 | 16.4 |
| 1980 | 40 | 20.9 |
| 1982 | 23 | 20.9 |
| 1983 | 19 | 20.9 |
| 1984 | 14 | 20.9 |
| 1985 | 6 | 20.9 |
| 1986 | 23 | 20.9 |
| 1987 | 10 | 20.9 |
| 1988 | 33 | 20.9 |
| 1989 | 20 | 20.9 |
| 1990 | 22 | 15.3 |
| 1991 | 8 | 15.3 |
| 1992 | 11 | 15.3 |
| 1993 | 20 | 15.3 |
| Year | First date | Last date |
|---|---|---|
| 1967 | 1967-07-04 | 1967-08-07 |
| 1968 | 1968-05-27 | 1968-08-17 |
| 1969 | 1969-07-07 | 1969-07-14 |
| 1970 | 1970-05-29 | 1970-08-24 |
| 1973 | 1973-06-07 | 1973-08-03 |
| 1975 | 1975-05-27 | 1975-07-27 |
| 1976 | 1976-06-14 | 1976-08-17 |
| 1977 | 1977-05-12 | 1977-08-30 |
| 1978 | 1978-05-20 | 1978-08-14 |
| 1979 | 1979-05-26 | 1979-08-11 |
| 1980 | 1980-06-10 | 1980-08-11 |
| 1982 | 1982-06-21 | 1982-08-15 |
| 1983 | 1983-07-02 | 1983-08-16 |
| 1984 | 1984-05-21 | 1984-08-09 |
| 1985 | 1985-06-30 | 1985-07-21 |
| 1986 | 1986-06-04 | 1986-08-23 |
| 1987 | 1987-06-01 | 1987-08-17 |
| 1988 | 1988-06-20 | 1988-08-12 |
| 1989 | 1989-06-01 | 1989-08-16 |
| 1990 | 1990-05-18 | 1990-07-21 |
| 1991 | 1991-07-01 | 1991-08-17 |
| 1992 | 1992-06-20 | 1992-07-18 |
| 1993 | 1993-06-10 | 1993-08-06 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 23 | 40 | 1980 | 20 |
| 35 C (95 F): Days | 9 | 15 | 1980 | 2 |
| 90 F (32.2 C): Days | 22 | 24 | 1980 | 7 |
| 100 F (37.8 C): Days | 1 | 2 | 1980 | 2 |
| 0 C (32 F): Ice days (max | 23 | 146 | 1979 | 132 |
| 0 C (32 F): Frost days (min | 7 | 250 | 1976 | 231 |
| -10 C (14 F): Days with min | 7 | 170 | 1970 | 153 |
| -20 C (-4 F): Days with min | 7 | 131 | 1970 | 122 |
| -30 C (-22 F): Days with min | 7 | 98 | 1969 | 81 |
| -40 C (-40 F): Days with min | 7 | 48 | 1969 | 12 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 51 | 19 | 1943 | 13 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 42 | 6 | 1943 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 7 | 1 | 1943 | 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).