Aylsham Threshold Days by Year (CA004070365)
15 fixed thresholds counted per year at Aylsham (CA004070365): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Aylsham Thresholds
- Aylsham: days with a maximum temperature at or below 0 C (32 F) in 14 years, most in 1972 with 156.
- Aylsham: nights with a minimum temperature at or below 0 C (32 F) in 14 years, most in 1969 with 215.
- Aylsham: nights with a minimum temperature at or below -10 C (14 F) in 14 years, most in 1982 with 135.
- Aylsham: nights with a minimum temperature at or below -20 C (-4 F) in 14 years, most in 1970 with 92.
- 15 fixed thresholds have at least one qualifying day at Aylsham.
Days at or above 30 C (86 F)
13 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1969 | 6 | 6 |
| 1970 | 13 | 5.8 |
| 1971 | 5 | 5.8 |
| 1972 | 6 | 5.8 |
| 1973 | 3 | 5.8 |
| 1974 | 5 | 5.8 |
| 1975 | 9 | 5.8 |
| 1976 | 2 | 5.8 |
| 1977 | 4 | 5.8 |
| 1978 | 5 | 5.8 |
| 1980 | 10 | 8.3 |
| 1981 | 5 | 8.3 |
| 1983 | 10 | 8.3 |
| Year | First date | Last date |
|---|---|---|
| 1969 | 1969-05-25 | 1969-09-13 |
| 1970 | 1970-06-02 | 1970-08-22 |
| 1971 | 1971-06-12 | 1971-09-11 |
| 1972 | 1972-06-06 | 1972-08-29 |
| 1973 | 1973-06-23 | 1973-08-13 |
| 1974 | 1974-06-24 | 1974-08-06 |
| 1975 | 1975-06-25 | 1975-07-29 |
| 1976 | 1976-08-23 | 1976-09-06 |
| 1977 | 1977-04-26 | 1977-07-22 |
| 1978 | 1978-06-05 | 1978-08-10 |
| 1980 | 1980-05-03 | 1980-09-07 |
| 1981 | 1981-05-21 | 1981-09-08 |
| 1983 | 1983-07-14 | 1983-09-01 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 13 | 13 | 1970 | 10 |
| 35 C (95 F): Days | 1 | 1 | 1970 | 1 |
| 90 F (32.2 C): Days | 9 | 5 | 1970 | 3 |
| 0 C (32 F): Ice days (max | 14 | 156 | 1972 | 139 |
| 0 C (32 F): Frost days (min | 14 | 215 | 1969 | 207 |
| -10 C (14 F): Days with min | 14 | 135 | 1982 | 119 |
| -20 C (-4 F): Days with min | 14 | 92 | 1970 | 66 |
| -30 C (-22 F): Days with min | 14 | 41 | 1972 | 23 |
| -40 C (-40 F): Days with min | 9 | 5 | 1972 | 1 |
| 20 C (68 F): Tropical nights (min | 3 | 2 | 1970 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 14 | 18 | 1973 | 10 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 14 | 6 | 1973 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 1 | 1971 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 12 | 5 | 1980 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1978 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.
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).