Clayton Lake Threshold Days by Year (USC00171472)
15 fixed thresholds counted per year at Clayton Lake (USC00171472): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Clayton Lake Thresholds
- Clayton Lake: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1999 with 37.
- Clayton Lake: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 1990 with 11.
- Clayton Lake: days with a maximum temperature at or below 0 C (32 F) in 20 years, most in 1997 with 109.
- Clayton Lake: nights with a minimum temperature at or below 0 C (32 F) in 20 years, most in 2002 with 215.
- 15 fixed thresholds have at least one qualifying day at Clayton Lake.
Days at or above 30 C (86 F)
18 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1962 | 1 | 1 |
| 1986 | 1 | 6 |
| 1987 | 7 | 6 |
| 1988 | 10 | 6 |
| 1990 | 5 | 6.3 |
| 1992 | 2 | 6.3 |
| 1993 | 5 | 6.3 |
| 1995 | 15 | 6.3 |
| 1996 | 4 | 6.3 |
| 1997 | 3 | 6.3 |
| 1998 | 6 | 6.3 |
| 1999 | 10 | 6.3 |
| 2001 | 10 | 7 |
| 2002 | 13 | 7 |
| 2003 | 5 | 7 |
| 2005 | 6 | 7 |
| 2007 | 6 | 7 |
| 2009 | 2 | 7 |
| Year | First date | Last date |
|---|---|---|
| 1962 | 1962-05-20 | 1962-05-20 |
| 1986 | 1986-07-25 | 1986-07-25 |
| 1987 | 1987-07-09 | 1987-08-17 |
| 1988 | 1988-06-15 | 1988-08-06 |
| 1990 | 1990-07-28 | 1990-08-06 |
| 1992 | 1992-05-22 | 1992-05-23 |
| 1993 | 1993-06-15 | 1993-08-27 |
| 1995 | 1995-06-20 | 1995-08-12 |
| 1996 | 1996-06-12 | 1996-08-07 |
| 1997 | 1997-07-01 | 1997-07-03 |
| 1998 | 1998-07-16 | 1998-08-11 |
| 1999 | 1999-06-01 | 1999-09-06 |
| 2001 | 2001-06-16 | 2001-09-10 |
| 2002 | 2002-07-03 | 2002-09-22 |
| 2003 | 2003-06-23 | 2003-06-28 |
| 2005 | 2005-06-14 | 2005-07-20 |
| 2007 | 2007-05-25 | 2007-08-03 |
| 2009 | 2009-08-15 | 2009-08-21 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 18 | 15 | 1995 | 2 |
| 90 F (32.2 C): Days | 10 | 5 | 2002 | 1 |
| 0 C (32 F): Ice days (max | 20 | 109 | 1997 | 80 |
| 0 C (32 F): Frost days (min | 20 | 215 | 2002 | 204 |
| -10 C (14 F): Days with min | 20 | 112 | 2003 | 94 |
| -20 C (-4 F): Days with min | 20 | 63 | 1993 | 50 |
| -30 C (-22 F): Days with min | 20 | 20 | 1993 | 6 |
| -40 C (-40 F): Days with min | 2 | 2 | 2009 | 2 |
| 20 C (68 F): Tropical nights (min | 7 | 3 | 1987 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 24 | 37 | 1999 | 30 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 24 | 11 | 1990 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 12 | 2 | 1999 | 2 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 20 | 15 | 1997 | 7 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 14 | 3 | 1962 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 2 | 2003 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.
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).