Copper Harbor Ft Wilkins Threshold Days by Year
14 fixed thresholds counted per year at Copper Harbor Ft Wilkins (USC00201780): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Copper Harbor Ft Wilkins Thresholds
- Copper Harbor Ft Wilkins: days with a maximum temperature at or below 0 C (32 F) in 18 years, most in 1996 with 105.
- Copper Harbor Ft Wilkins: nights with a minimum temperature at or below 0 C (32 F) in 18 years, most in 1997 with 184.
- Copper Harbor Ft Wilkins: nights with a minimum temperature at or below -10 C (14 F) in 18 years, most in 1989 with 82.
- Copper Harbor Ft Wilkins: days with a maximum temperature at or above 30 C (86 F) in 16 years, most in 2005 with 14.
- 14 fixed thresholds have at least one qualifying day at Copper Harbor Ft Wilkins.
Days at or above 30 C (86 F)
16 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1989 | 3 | 3 |
| 1991 | 7 | 4.1 |
| 1992 | 1 | 4.1 |
| 1993 | 4 | 4.1 |
| 1995 | 9 | 4.1 |
| 1996 | 1 | 4.1 |
| 1997 | 2 | 4.1 |
| 1998 | 5 | 4.1 |
| 2005 | 14 | 6.3 |
| 2007 | 7 | 6.3 |
| 2008 | 3 | 6.3 |
| 2009 | 1 | 6.3 |
| 2010 | 8 | 5.5 |
| 2011 | 3 | 5.5 |
| 2012 | 7 | 5.5 |
| 2013 | 4 | 5.5 |
| Year | First date | Last date |
|---|---|---|
| 1989 | 1989-07-26 | 1989-08-03 |
| 1991 | 1991-07-16 | 1991-08-31 |
| 1992 | 1992-05-21 | 1992-05-21 |
| 1993 | 1993-08-12 | 1993-08-26 |
| 1995 | 1995-06-17 | 1995-08-20 |
| 1996 | 1996-06-29 | 1996-06-29 |
| 1997 | 1997-06-27 | 1997-08-07 |
| 1998 | 1998-07-13 | 1998-09-06 |
| 2005 | 2005-06-27 | 2005-09-12 |
| 2007 | 2007-06-13 | 2007-09-06 |
| 2008 | 2008-08-17 | 2008-09-02 |
| 2009 | 2009-05-21 | 2009-05-21 |
| 2010 | 2010-07-03 | 2010-08-31 |
| 2011 | 2011-06-13 | 2011-09-12 |
| 2012 | 2012-07-12 | 2012-08-31 |
| 2013 | 2013-07-06 | 2013-08-26 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 16 | 14 | 2005 | 4 |
| 35 C (95 F): Days | 1 | 1 | 1998 | 1 |
| 90 F (32.2 C): Days | 6 | 6 | 2005 | 2 |
| 0 C (32 F): Ice days (max | 18 | 105 | 1996 | 81 |
| 0 C (32 F): Frost days (min | 18 | 184 | 1997 | 165 |
| -10 C (14 F): Days with min | 18 | 82 | 1989 | 57 |
| -20 C (-4 F): Days with min | 16 | 17 | 1994 | 4 |
| -30 C (-22 F): Days with min | 1 | 1 | 1994 | 1 |
| 20 C (68 F): Tropical nights (min | 14 | 8 | 2005 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 13 | 32 | 1991 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 12 | 9 | 1996 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 3 | 1 | 1994 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 15 | 14 | 1989 | 10 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 8 | 3 | 1996 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1989.
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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-16).