Lacon Threshold Days by Year (USC00114805)
17 fixed thresholds counted per year at Lacon (USC00114805): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Lacon Thresholds
- Lacon: days with 10 mm (0.39 in) or more of precipitation in 58 years, most in 1970 with 43.
- Lacon: days with 25 mm (0.98 in) or more of precipitation in 58 years, most in 1970 with 20.
- Lacon: days with 50 mm (1.97 in) or more of precipitation in 46 years, most in 1970 with 5.
- Lacon: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 2005 with 86.
- 17 fixed thresholds have at least one qualifying day at Lacon.
Days at or above 30 C (86 F)
43 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1960 | 51 | 50.7 |
| 1962 | 70 | 50.7 |
| 1965 | 46 | 50.7 |
| 1966 | 53 | 50.7 |
| 1967 | 31 | 50.7 |
| 1968 | 53 | 50.7 |
| 1969 | 51 | 50.7 |
| 1970 | 51 | 57.8 |
| 1971 | 68 | 57.8 |
| 1972 | 51 | 57.8 |
| 1973 | 49 | 57.8 |
| 1974 | 36 | 57.8 |
| 1975 | 51 | 57.8 |
| 1976 | 64 | 57.8 |
| 1977 | 69 | 57.8 |
| 1978 | 75 | 57.8 |
| 1979 | 64 | 57.8 |
| 1980 | 75 | 62.1 |
| 1981 | 37 | 62.1 |
| 1982 | 48 | 62.1 |
| 1983 | 82 | 62.1 |
| 1984 | 63 | 62.1 |
| 1988 | 85 | 62.1 |
| 1989 | 45 | 62.1 |
| 1990 | 33 | 54.8 |
| 1991 | 78 | 54.8 |
| 1992 | 36 | 54.8 |
| 1993 | 44 | 54.8 |
| 1994 | 59 | 54.8 |
| 1995 | 67 | 54.8 |
| 1996 | 52 | 54.8 |
| 1997 | 53 | 54.8 |
| 1998 | 73 | 54.8 |
| 1999 | 53 | 54.8 |
| 2000 | 58 | 61.4 |
| 2001 | 58 | 61.4 |
| 2002 | 77 | 61.4 |
| 2003 | 52 | 61.4 |
| 2004 | 37 | 61.4 |
| 2005 | 86 | 61.4 |
| 2006 | 60 | 61.4 |
| 2007 | 82 | 61.4 |
| 2008 | 43 | 61.4 |
| Year | First date | Last date |
|---|---|---|
| 1960 | 1960-04-22 | 1960-09-08 |
| 1962 | 1962-04-26 | 1962-10-15 |
| 1965 | 1965-05-23 | 1965-09-20 |
| 1966 | 1966-05-05 | 1966-09-13 |
| 1967 | 1967-05-25 | 1967-10-04 |
| 1968 | 1968-05-02 | 1968-09-23 |
| 1969 | 1969-05-03 | 1969-10-04 |
| 1970 | 1970-04-28 | 1970-09-21 |
| 1971 | 1971-04-12 | 1971-10-02 |
| 1972 | 1972-05-19 | 1972-09-20 |
| 1973 | 1973-06-09 | 1973-09-28 |
| 1974 | 1974-05-21 | 1974-09-19 |
| 1975 | 1975-05-19 | 1975-10-13 |
| 1976 | 1976-06-05 | 1976-10-03 |
| 1977 | 1977-04-16 | 1977-09-08 |
| 1978 | 1978-05-25 | 1978-09-20 |
| 1979 | 1979-05-08 | 1979-10-21 |
| 1980 | 1980-04-22 | 1980-09-22 |
| 1981 | 1981-04-27 | 1981-10-01 |
| 1982 | 1982-05-04 | 1982-10-05 |
| 1983 | 1983-06-09 | 1983-10-02 |
| 1984 | 1984-05-18 | 1984-09-25 |
| 1988 | 1988-05-20 | 1988-09-23 |
| 1989 | 1989-04-25 | 1989-08-27 |
| 1990 | 1990-04-25 | 1990-09-07 |
| 1991 | 1991-05-12 | 1991-09-16 |
| 1992 | 1992-05-01 | 1992-09-16 |
| 1993 | 1993-05-08 | 1993-08-31 |
| 1994 | 1994-05-21 | 1994-09-30 |
| 1995 | 1995-06-07 | 1995-09-13 |
| 1996 | 1996-05-17 | 1996-09-07 |
| 1997 | 1997-06-18 | 1997-10-08 |
| 1998 | 1998-05-14 | 1998-09-27 |
| 1999 | 1999-05-30 | 1999-09-25 |
| 2000 | 2000-06-01 | 2000-09-19 |
| 2001 | 2001-05-03 | 2001-09-08 |
| 2002 | 2002-04-15 | 2002-10-01 |
| 2003 | 2003-04-15 | 2003-10-20 |
| 2004 | 2004-04-17 | 2004-09-23 |
| 2005 | 2005-05-10 | 2005-10-05 |
| 2006 | 2006-05-24 | 2006-10-03 |
| 2007 | 2007-04-30 | 2007-10-08 |
| 2008 | 2008-06-01 | 2008-10-11 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 43 | 86 | 2005 | 43 |
| 35 C (95 F): Days | 37 | 35 | 1988 | 1 |
| 90 F (32.2 C): Days | 43 | 65 | 1983 | 14 |
| 100 F (37.8 C): Days | 7 | 14 | 1988 | 2 |
| 0 C (32 F): Ice days (max | 43 | 61 | 1978 | 43 |
| 0 C (32 F): Frost days (min | 43 | 148 | 1969 | 124 |
| -10 C (14 F): Days with min | 43 | 60 | 1978 | 42 |
| -20 C (-4 F): Days with min | 41 | 19 | 1977 | 3 |
| -30 C (-22 F): Days with min | 3 | 1 | 1972 | 1 |
| 20 C (68 F): Tropical nights (min | 43 | 52 | 1983 | 31 |
| 25 C (77 F): Days with min | 24 | 11 | 1983 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 58 | 43 | 1970 | 25 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 58 | 20 | 1970 | 9 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 46 | 5 | 1970 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 1 | 1977 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 38 | 4 | 1960 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 1 | 1991 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.
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).