Tempe Downs Threshold Days by Year (ASN00015557)
14 fixed thresholds counted per year at Tempe Downs (ASN00015557): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Tempe Downs Thresholds
- Tempe Downs: days with 10 mm (0.39 in) or more of precipitation in 91 years, most in 1974 with 29.
- Tempe Downs: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1921 with 12.
- Tempe Downs: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 1974 with 5.
- Tempe Downs: days with a maximum temperature at or above 30 C (86 F) in 8 years, most in 1971 with 196.
- 14 fixed thresholds have at least one qualifying day at Tempe Downs.
Days at or above 30 C (86 F)
8 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1970 | 174 | 169.1 |
| 1971 | 196 | 169.1 |
| 1972 | 177 | 169.1 |
| 1973 | 170 | 169.1 |
| 1974 | 131 | 169.1 |
| 1977 | 175 | 169.1 |
| 1978 | 158 | 169.1 |
| 1979 | 172 | 169.1 |
| Year | First date | Last date |
|---|---|---|
| 1970 | 1970-01-03 | 1970-12-31 |
| 1971 | 1971-01-01 | 1971-12-31 |
| 1972 | 1972-01-01 | 1972-12-27 |
| 1973 | 1973-01-01 | 1973-12-29 |
| 1974 | 1974-01-01 | 1974-12-31 |
| 1977 | 1977-01-01 | 1977-12-31 |
| 1978 | 1978-01-01 | 1978-12-31 |
| 1979 | 1979-01-01 | 1979-12-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 8 | 196 | 1971 | 172 |
| 35 C (95 F): Days | 8 | 123 | 1971 | 111 |
| 40 C (104 F): Days | 8 | 30 | 1979 | 30 |
| 45 C (113 F): Days | 2 | 1 | 1970 | 1 |
| 90 F (32.2 C): Days | 8 | 167 | 1971 | 139 |
| 100 F (37.8 C): Days | 8 | 63 | 1979 | 63 |
| 110 F (43.3 C): Days | 7 | 7 | 1971 | 2 |
| 0 C (32 F): Frost days (min | 7 | 42 | 1977 | 7 |
| 20 C (68 F): Tropical nights (min | 8 | 87 | 1971 | 79 |
| 25 C (77 F): Days with min | 8 | 21 | 1971 | 12 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 91 | 29 | 1974 | 7 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 81 | 12 | 1921 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 37 | 5 | 1974 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1914 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.
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 (2026-10-17).