Portageville Threshold Days by Year
17 fixed thresholds counted per year at Portageville (USC00236804): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Portageville Thresholds
- Portageville: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1987 with 115.
- Portageville: days with a maximum temperature at or above 35 C (95 F) in 41 years, most in 1983 with 39.
- Portageville: days with a maximum temperature at or above 90 F (32.2 C) in 41 years, most in 1983 with 73.
- Portageville: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1978 with 39.
- 17 fixed thresholds have at least one qualifying day at Portageville.
Days at or above 30 C (86 F)
41 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1966 | 68 | 75.3 |
| 1967 | 64 | 75.3 |
| 1968 | 79 | 75.3 |
| 1969 | 90 | 75.3 |
| 1970 | 83 | 79 |
| 1971 | 85 | 79 |
| 1972 | 82 | 79 |
| 1973 | 78 | 79 |
| 1974 | 57 | 79 |
| 1975 | 79 | 79 |
| 1976 | 56 | 79 |
| 1977 | 102 | 79 |
| 1978 | 90 | 79 |
| 1979 | 78 | 79 |
| 1981 | 69 | 91 |
| 1983 | 95 | 91 |
| 1987 | 115 | 91 |
| 1988 | 93 | 91 |
| 1989 | 83 | 91 |
| 1990 | 83 | 78.8 |
| 1991 | 100 | 78.8 |
| 1992 | 46 | 78.8 |
| 1993 | 83 | 78.8 |
| 1994 | 66 | 78.8 |
| 1995 | 82 | 78.8 |
| 1996 | 69 | 78.8 |
| 1997 | 73 | 78.8 |
| 1998 | 104 | 78.8 |
| 1999 | 82 | 78.8 |
| 2000 | 84 | 77.9 |
| 2001 | 80 | 77.9 |
| 2002 | 90 | 77.9 |
| 2003 | 57 | 77.9 |
| 2004 | 54 | 77.9 |
| 2005 | 93 | 77.9 |
| 2006 | 86 | 77.9 |
| 2007 | 108 | 77.9 |
| 2008 | 74 | 77.9 |
| 2009 | 53 | 77.9 |
| 2010 | 88 | 90 |
| 2011 | 92 | 90 |
| Year | First date | Last date |
|---|---|---|
| 1966 | 1966-05-07 | 1966-10-10 |
| 1967 | 1967-04-06 | 1967-10-06 |
| 1968 | 1968-05-02 | 1968-09-24 |
| 1969 | 1969-05-14 | 1969-10-05 |
| 1970 | 1970-05-09 | 1970-09-23 |
| 1971 | 1971-04-20 | 1971-10-04 |
| 1972 | 1972-05-20 | 1972-09-21 |
| 1973 | 1973-05-23 | 1973-10-04 |
| 1974 | 1974-05-19 | 1974-08-28 |
| 1975 | 1975-05-19 | 1975-10-15 |
| 1976 | 1976-04-24 | 1976-10-05 |
| 1977 | 1977-04-14 | 1977-10-02 |
| 1978 | 1978-04-09 | 1978-10-23 |
| 1979 | 1979-05-11 | 1979-10-22 |
| 1981 | 1981-05-25 | 1981-10-06 |
| 1983 | 1983-06-11 | 1983-10-04 |
| 1987 | 1987-04-21 | 1987-09-28 |
| 1988 | 1988-05-13 | 1988-09-24 |
| 1989 | 1989-04-23 | 1989-10-14 |
| 1990 | 1990-06-02 | 1990-09-29 |
| 1991 | 1991-05-16 | 1991-09-30 |
| 1992 | 1992-05-16 | 1992-09-15 |
| 1993 | 1993-05-29 | 1993-09-23 |
| 1994 | 1994-04-28 | 1994-09-15 |
| 1995 | 1995-04-10 | 1995-09-16 |
| 1996 | 1996-04-20 | 1996-09-12 |
| 1997 | 1997-05-18 | 1997-10-12 |
| 1998 | 1998-05-14 | 1998-10-05 |
| 1999 | 1999-06-02 | 1999-09-29 |
| 2000 | 2000-05-18 | 2000-10-06 |
| 2001 | 2001-04-12 | 2001-09-24 |
| 2002 | 2002-04-19 | 2002-10-05 |
| 2003 | 2003-04-30 | 2003-09-19 |
| 2004 | 2004-05-08 | 2004-09-24 |
| 2005 | 2005-05-12 | 2005-10-20 |
| 2006 | 2006-04-15 | 2006-10-05 |
| 2007 | 2007-05-01 | 2007-10-09 |
| 2008 | 2008-05-20 | 2008-09-30 |
| 2009 | 2009-05-31 | 2009-09-09 |
| 2010 | 2010-05-08 | 2010-10-12 |
| 2011 | 2011-04-10 | 2011-09-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 41 | 115 | 1987 | 92 |
| 35 C (95 F): Days | 41 | 39 | 1983 | 27 |
| 40 C (104 F): Days | 1 | 1 | 2007 | 1 |
| 90 F (32.2 C): Days | 41 | 73 | 1983 | 59 |
| 100 F (37.8 C): Days | 15 | 5 | 1966 | 2 |
| 0 C (32 F): Ice days (max | 41 | 39 | 1978 | 12 |
| 0 C (32 F): Frost days (min | 41 | 92 | 2010 | 65 |
| -10 C (14 F): Days with min | 38 | 31 | 1978 | 8 |
| -20 C (-4 F): Days with min | 4 | 3 | 1977 | 1 |
| 20 C (68 F): Tropical nights (min | 41 | 102 | 1998 | 83 |
| 25 C (77 F): Days with min | 26 | 12 | 2010 | 9 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 41 | 58 | 1973 | 47 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 41 | 27 | 1973 | 24 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 38 | 7 | 1973 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 14 | 3 | 1973 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 13 | 2 | 1979 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1994 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.
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).