Dzana Threshold Days by Year (RSM00031235)
13 fixed thresholds counted per year at Dzana (RSM00031235): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Dzana Thresholds
- Dzana: nights with a minimum temperature at or below 0 C (32 F) in 57 years, most in 1960 with 260.
- Dzana: nights with a minimum temperature at or below -10 C (14 F) in 57 years, most in 1987 with 193.
- Dzana: nights with a minimum temperature at or below -20 C (-4 F) in 57 years, most in 1984 with 150.
- Dzana: nights with a minimum temperature at or below -30 C (-22 F) in 57 years, most in 1969 with 96.
- 13 fixed thresholds have at least one qualifying day at Dzana.
Days at or above 30 C (86 F)
55 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1959 | 4 | 4 |
| 1960 | 7 | 6.6 |
| 1961 | 1 | 6.6 |
| 1962 | 5 | 6.6 |
| 1963 | 12 | 6.6 |
| 1964 | 3 | 6.6 |
| 1965 | 7 | 6.6 |
| 1966 | 8 | 6.6 |
| 1967 | 7 | 6.6 |
| 1968 | 10 | 6.6 |
| 1969 | 6 | 6.6 |
| 1970 | 16 | 5.8 |
| 1972 | 1 | 5.8 |
| 1973 | 7 | 5.8 |
| 1974 | 11 | 5.8 |
| 1975 | 4 | 5.8 |
| 1977 | 1 | 5.8 |
| 1978 | 5 | 5.8 |
| 1979 | 1 | 5.8 |
| 1980 | 23 | 9.8 |
| 1981 | 2 | 9.8 |
| 1982 | 8 | 9.8 |
| 1983 | 5 | 9.8 |
| 1984 | 2 | 9.8 |
| 1986 | 8 | 9.8 |
| 1987 | 7 | 9.8 |
| 1988 | 20 | 9.8 |
| 1989 | 13 | 9.8 |
| 1990 | 4 | 8.1 |
| 1991 | 8 | 8.1 |
| 1992 | 8 | 8.1 |
| 1993 | 8 | 8.1 |
| 1994 | 1 | 8.1 |
| 1995 | 8 | 8.1 |
| 1996 | 11 | 8.1 |
| 1997 | 3 | 8.1 |
| 1998 | 22 | 8.1 |
| 2000 | 4 | 7.8 |
| 2001 | 6 | 7.8 |
| 2002 | 1 | 7.8 |
| 2003 | 10 | 7.8 |
| 2004 | 9 | 7.8 |
| 2005 | 12 | 7.8 |
| 2006 | 9 | 7.8 |
| 2007 | 7 | 7.8 |
| 2008 | 15 | 7.8 |
| 2009 | 5 | 7.8 |
| 2010 | 9 | 11 |
| 2012 | 18 | 11 |
| 2013 | 8 | 11 |
| 2014 | 9 | 11 |
| 2015 | 20 | 11 |
| 2016 | 1 | 11 |
| 2017 | 16 | 11 |
| 2018 | 7 | 11 |
| Year | First date | Last date |
|---|---|---|
| 1959 | 1959-06-09 | 1959-07-17 |
| 1960 | 1960-06-28 | 1960-08-19 |
| 1961 | 1961-08-11 | 1961-08-11 |
| 1962 | 1962-07-08 | 1962-08-08 |
| 1963 | 1963-07-07 | 1963-08-09 |
| 1964 | 1964-06-12 | 1964-07-31 |
| 1965 | 1965-06-12 | 1965-07-25 |
| 1966 | 1966-06-17 | 1966-07-13 |
| 1967 | 1967-06-16 | 1967-07-31 |
| 1968 | 1968-05-27 | 1968-07-16 |
| 1969 | 1969-07-07 | 1969-07-13 |
| 1970 | 1970-06-29 | 1970-08-08 |
| 1972 | 1972-07-30 | 1972-07-30 |
| 1973 | 1973-06-06 | 1973-08-02 |
| 1974 | 1974-07-04 | 1974-07-26 |
| 1975 | 1975-05-26 | 1975-07-08 |
| 1977 | 1977-05-30 | 1977-05-30 |
| 1978 | 1978-06-30 | 1978-07-27 |
| 1979 | 1979-05-26 | 1979-05-26 |
| 1980 | 1980-06-19 | 1980-08-05 |
| 1981 | 1981-07-21 | 1981-07-22 |
| 1982 | 1982-06-20 | 1982-07-30 |
| 1983 | 1983-07-19 | 1983-07-23 |
| 1984 | 1984-07-06 | 1984-07-23 |
| 1986 | 1986-06-26 | 1986-08-10 |
| 1987 | 1987-06-13 | 1987-08-16 |
| 1988 | 1988-06-19 | 1988-08-11 |
| 1989 | 1989-05-29 | 1989-08-01 |
| 1990 | 1990-06-25 | 1990-08-14 |
| 1991 | 1991-07-01 | 1991-08-17 |
| 1992 | 1992-06-11 | 1992-06-29 |
| 1993 | 1993-07-01 | 1993-08-01 |
| 1994 | 1994-06-06 | 1994-06-06 |
| 1995 | 1995-06-11 | 1995-08-07 |
| 1996 | 1996-06-17 | 1996-08-13 |
| 1997 | 1997-07-20 | 1997-08-13 |
| 1998 | 1998-06-12 | 1998-08-11 |
| 2000 | 2000-06-10 | 2000-08-05 |
| 2001 | 2001-06-14 | 2001-08-12 |
| 2002 | 2002-06-14 | 2002-06-14 |
| 2003 | 2003-06-16 | 2003-07-26 |
| 2004 | 2004-06-02 | 2004-07-27 |
| 2005 | 2005-06-14 | 2005-08-25 |
| 2006 | 2006-06-23 | 2006-08-12 |
| 2007 | 2007-06-01 | 2007-08-04 |
| 2008 | 2008-06-02 | 2008-07-24 |
| 2009 | 2009-06-07 | 2009-08-09 |
| 2010 | 2010-06-10 | 2010-09-04 |
| 2012 | 2012-05-30 | 2012-08-05 |
| 2013 | 2013-06-28 | 2013-07-16 |
| 2014 | 2014-06-21 | 2014-08-31 |
| 2015 | 2015-06-13 | 2015-08-26 |
| 2016 | 2016-07-09 | 2016-07-09 |
| 2017 | 2017-06-21 | 2017-08-14 |
| 2018 | 2018-05-28 | 2018-07-28 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 55 | 23 | 1980 | 7 |
| 35 C (95 F): Days | 12 | 4 | 1998 | 3 |
| 90 F (32.2 C): Days | 36 | 14 | 1998 | 2 |
| 100 F (37.8 C): Days | 1 | 1 | 1970 | 1 |
| 0 C (32 F): Ice days (max | 56 | 184 | 1960 | 152 |
| 0 C (32 F): Frost days (min | 57 | 260 | 1960 | 240 |
| -10 C (14 F): Days with min | 57 | 193 | 1987 | 157 |
| -20 C (-4 F): Days with min | 57 | 150 | 1984 | 118 |
| -30 C (-22 F): Days with min | 57 | 96 | 1969 | 61 |
| -40 C (-40 F): Days with min | 46 | 18 | 1969 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 56 | 25 | 1981 | 9 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 42 | 5 | 1983 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 3 | 1 | 1960 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.
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).