Biser Threshold Days by Year (RSM00028138)
13 fixed thresholds counted per year at Biser (RSM00028138): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Biser Thresholds
- Biser: days with 10 mm (0.39 in) or more of precipitation in 118 years, most in 1962 with 29.
- Biser: nights with a minimum temperature at or below 0 C (32 F) in 113 years, most in 1941 with 240.
- Biser: nights with a minimum temperature at or below -10 C (14 F) in 113 years, most in 1891 with 157.
- Biser: nights with a minimum temperature at or below -20 C (-4 F) in 113 years, most in 1902 with 84.
- 13 fixed thresholds have at least one qualifying day at Biser.
Days at or above 30 C (86 F)
44 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1936 | 6 | 2.7 |
| 1937 | 1 | 2.7 |
| 1938 | 1 | 2.7 |
| 1940 | 3 | 1.6 |
| 1944 | 2 | 1.6 |
| 1947 | 1 | 1.6 |
| 1948 | 1 | 1.6 |
| 1949 | 1 | 1.6 |
| 1951 | 4 | 3.9 |
| 1952 | 9 | 3.9 |
| 1953 | 4 | 3.9 |
| 1954 | 4 | 3.9 |
| 1955 | 1 | 3.9 |
| 1956 | 2 | 3.9 |
| 1957 | 1 | 3.9 |
| 1958 | 6 | 3.9 |
| 1960 | 1 | 1.4 |
| 1962 | 1 | 1.4 |
| 1963 | 3 | 1.4 |
| 1964 | 1 | 1.4 |
| 1965 | 1 | 1.4 |
| 1971 | 1 | 1.7 |
| 1973 | 2 | 1.7 |
| 1975 | 2 | 1.7 |
| 1981 | 1 | 2.4 |
| 1982 | 2 | 2.4 |
| 1987 | 6 | 2.4 |
| 1988 | 1 | 2.4 |
| 1989 | 2 | 2.4 |
| 1991 | 2 | 1.3 |
| 1995 | 1 | 1.3 |
| 1998 | 1 | 1.3 |
| 2000 | 1 | 1.6 |
| 2001 | 1 | 1.6 |
| 2003 | 2 | 1.6 |
| 2004 | 4 | 1.6 |
| 2005 | 1 | 1.6 |
| 2006 | 1 | 1.6 |
| 2008 | 1 | 1.6 |
| 2010 | 14 | 5.2 |
| 2012 | 4 | 5.2 |
| 2013 | 1 | 5.2 |
| 2015 | 3 | 5.2 |
| 2016 | 4 | 5.2 |
| Year | First date | Last date |
|---|---|---|
| 1936 | 1936-06-03 | 1936-08-09 |
| 1937 | 1937-07-01 | 1937-07-01 |
| 1938 | 1938-07-07 | 1938-07-07 |
| 1940 | 1940-07-08 | 1940-07-15 |
| 1944 | 1944-06-25 | 1944-06-26 |
| 1947 | 1947-07-15 | 1947-07-15 |
| 1948 | 1948-06-24 | 1948-06-24 |
| 1949 | 1949-06-23 | 1949-06-23 |
| 1951 | 1951-07-21 | 1951-08-20 |
| 1952 | 1952-05-27 | 1952-07-29 |
| 1953 | 1953-08-07 | 1953-08-10 |
| 1954 | 1954-06-29 | 1954-07-10 |
| 1955 | 1955-06-19 | 1955-06-19 |
| 1956 | 1956-06-27 | 1956-06-28 |
| 1957 | 1957-06-17 | 1957-06-17 |
| 1958 | 1958-06-20 | 1958-08-13 |
| 1960 | 1960-06-23 | 1960-06-23 |
| 1962 | 1962-07-17 | 1962-07-17 |
| 1963 | 1963-06-19 | 1963-06-25 |
| 1964 | 1964-07-15 | 1964-07-15 |
| 1965 | 1965-07-07 | 1965-07-07 |
| 1971 | 1971-07-25 | 1971-07-25 |
| 1973 | 1973-06-18 | 1973-06-19 |
| 1975 | 1975-07-05 | 1975-07-06 |
| 1981 | 1981-08-29 | 1981-08-29 |
| 1982 | 1982-06-17 | 1982-06-20 |
| 1987 | 1987-06-21 | 1987-08-04 |
| 1988 | 1988-07-17 | 1988-07-17 |
| 1989 | 1989-07-04 | 1989-07-05 |
| 1991 | 1991-06-28 | 1991-06-29 |
| 1995 | 1995-07-03 | 1995-07-03 |
| 1998 | 1998-06-13 | 1998-06-13 |
| 2000 | 2000-06-20 | 2000-06-20 |
| 2001 | 2001-08-02 | 2001-08-02 |
| 2003 | 2003-08-06 | 2003-08-07 |
| 2004 | 2004-07-16 | 2004-07-19 |
| 2005 | 2005-07-28 | 2005-07-28 |
| 2006 | 2006-06-06 | 2006-06-06 |
| 2008 | 2008-07-23 | 2008-07-23 |
| 2010 | 2010-07-16 | 2010-08-11 |
| 2012 | 2012-07-13 | 2012-07-18 |
| 2013 | 2013-06-20 | 2013-06-20 |
| 2015 | 2015-06-21 | 2015-06-23 |
| 2016 | 2016-08-04 | 2016-08-16 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 44 | 14 | 2010 | 4 |
| 90 F (32.2 C): Days | 11 | 3 | 2010 | 1 |
| 0 C (32 F): Ice days (max | 85 | 178 | 1952 | 159 |
| 0 C (32 F): Frost days (min | 113 | 240 | 1941 | 87 |
| -10 C (14 F): Days with min | 113 | 157 | 1891 | 43 |
| -20 C (-4 F): Days with min | 113 | 84 | 1902 | 9 |
| -30 C (-22 F): Days with min | 108 | 28 | 1902 | 2 |
| -40 C (-40 F): Days with min | 25 | 5 | 1940 | 2 |
| 20 C (68 F): Tropical nights (min | 6 | 2 | 2010 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 118 | 29 | 1962 | 24 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 97 | 8 | 1990 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 14 | 1 | 1896 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 2007 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.
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).