Grand Canyon Np 2 Threshold Days by Year
15 fixed thresholds counted per year at Grand Canyon Np 2 (USC00023596): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Grand Canyon Np 2 Thresholds
- Grand Canyon Np 2: nights with a minimum temperature at or below 0 C (32 F) in 30 years, most in 1995 with 207.
- Grand Canyon Np 2: nights with a minimum temperature at or below -10 C (14 F) in 30 years, most in 1990 with 50.
- Grand Canyon Np 2: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1978 with 22.
- Grand Canyon Np 2: days with 10 cm (3.9 in) or more of snowfall in 28 years, most in 1982 with 8.
- 15 fixed thresholds have at least one qualifying day at Grand Canyon Np 2.
Days at or above 30 C (86 F)
24 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1977 | 34 | 35.7 |
| 1978 | 38 | 35.7 |
| 1979 | 35 | 35.7 |
| 1980 | 29 | 21.9 |
| 1981 | 32 | 21.9 |
| 1982 | 11 | 21.9 |
| 1983 | 12 | 21.9 |
| 1984 | 16 | 21.9 |
| 1985 | 38 | 21.9 |
| 1986 | 27 | 21.9 |
| 1987 | 11 | 21.9 |
| 1988 | 21 | 21.9 |
| 1990 | 38 | 35.3 |
| 1991 | 22 | 35.3 |
| 1992 | 21 | 35.3 |
| 1993 | 25 | 35.3 |
| 1994 | 53 | 35.3 |
| 1995 | 35 | 35.3 |
| 1996 | 53 | 35.3 |
| 2004 | 39 | 50.8 |
| 2005 | 41 | 50.8 |
| 2006 | 53 | 50.8 |
| 2007 | 64 | 50.8 |
| 2008 | 57 | 50.8 |
| Year | First date | Last date |
|---|---|---|
| 1977 | 1977-05-31 | 1977-09-09 |
| 1978 | 1978-06-09 | 1978-08-10 |
| 1979 | 1979-06-13 | 1979-08-27 |
| 1980 | 1980-06-18 | 1980-08-12 |
| 1981 | 1981-06-05 | 1981-08-09 |
| 1982 | 1982-06-27 | 1982-07-28 |
| 1983 | 1983-05-29 | 1983-07-19 |
| 1984 | 1984-05-23 | 1984-07-18 |
| 1985 | 1985-06-08 | 1985-08-31 |
| 1986 | 1986-06-16 | 1986-09-07 |
| 1987 | 1987-06-14 | 1987-08-20 |
| 1988 | 1988-06-23 | 1988-08-15 |
| 1990 | 1990-06-04 | 1990-09-13 |
| 1991 | 1991-06-17 | 1991-08-22 |
| 1992 | 1992-06-29 | 1992-08-21 |
| 1993 | 1993-06-14 | 1993-08-04 |
| 1994 | 1994-06-10 | 1994-08-26 |
| 1995 | 1995-06-13 | 1995-09-05 |
| 1996 | 1996-05-13 | 1996-09-04 |
| 2004 | 2004-06-02 | 2004-09-02 |
| 2005 | 2005-05-21 | 2005-09-01 |
| 2006 | 2006-06-01 | 2006-09-05 |
| 2007 | 2007-05-11 | 2007-09-10 |
| 2008 | 2008-05-19 | 2008-09-06 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 24 | 64 | 2007 | 57 |
| 35 C (95 F): Days | 7 | 11 | 2007 | 2 |
| 90 F (32.2 C): Days | 22 | 35 | 2007 | 31 |
| 100 F (37.8 C): Days | 1 | 1 | 2007 | 1 |
| 0 C (32 F): Ice days (max | 23 | 23 | 1987 | 16 |
| 0 C (32 F): Frost days (min | 30 | 207 | 1995 | 182 |
| -10 C (14 F): Days with min | 30 | 50 | 1990 | 26 |
| -20 C (-4 F): Days with min | 12 | 8 | 1985 | 1 |
| 20 C (68 F): Tropical nights (min | 2 | 2 | 2006 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 30 | 22 | 1978 | 8 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 25 | 6 | 2004 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 4 | 3 | 2004 | 3 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 28 | 8 | 1982 | 7 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 7 | 2 | 1990 | 2 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 0 | n/a | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.
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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).