Willow Grove (Melrose) Threshold Days by Year (ASN00085095)
4 fixed thresholds counted per year at Willow Grove (Melrose) (ASN00085095): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Willow Grove (Melrose) Thresholds
- Willow Grove (Melrose): days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1956 with 47.
- Willow Grove (Melrose): days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1953 with 9.
- Willow Grove (Melrose): days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1939 with 2.
- Willow Grove (Melrose): days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1971 with 1.
- 4 fixed thresholds have at least one qualifying day at Willow Grove (Melrose).
Days with 10 mm (0.39 in) or more of precipitation
37 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1938 | 20 | 24.5 |
| 1939 | 29 | 24.5 |
| 1940 | 25 | 25.5 |
| 1941 | 28 | 25.5 |
| 1942 | 28 | 25.5 |
| 1943 | 23 | 25.5 |
| 1944 | 24 | 25.5 |
| 1945 | 25 | 25.5 |
| 1953 | 38 | 33.3 |
| 1954 | 33 | 33.3 |
| 1955 | 31 | 33.3 |
| 1956 | 47 | 33.3 |
| 1957 | 27 | 33.3 |
| 1958 | 33 | 33.3 |
| 1959 | 24 | 33.3 |
| 1960 | 30 | 29.1 |
| 1961 | 26 | 29.1 |
| 1962 | 25 | 29.1 |
| 1963 | 25 | 29.1 |
| 1964 | 38 | 29.1 |
| 1965 | 27 | 29.1 |
| 1966 | 34 | 29.1 |
| 1967 | 18 | 29.1 |
| 1968 | 38 | 29.1 |
| 1969 | 30 | 29.1 |
| 1970 | 36 | 29.9 |
| 1971 | 21 | 29.9 |
| 1972 | 18 | 29.9 |
| 1973 | 35 | 29.9 |
| 1974 | 38 | 29.9 |
| 1975 | 35 | 29.9 |
| 1976 | 28 | 29.9 |
| 1977 | 22 | 29.9 |
| 1978 | 44 | 29.9 |
| 1979 | 22 | 29.9 |
| 1980 | 29 | 28 |
| 1981 | 27 | 28 |
| Year | First date | Last date |
|---|---|---|
| 1938 | 1938-01-07 | 1938-12-01 |
| 1939 | 1939-02-02 | 1939-12-05 |
| 1940 | 1940-01-06 | 1940-12-28 |
| 1941 | 1941-01-05 | 1941-12-05 |
| 1942 | 1942-01-20 | 1942-12-19 |
| 1943 | 1943-01-16 | 1943-11-18 |
| 1944 | 1944-02-09 | 1944-12-21 |
| 1945 | 1945-01-11 | 1945-12-27 |
| 1953 | 1953-01-06 | 1953-12-31 |
| 1954 | 1954-01-28 | 1954-12-17 |
| 1955 | 1955-02-14 | 1955-12-31 |
| 1956 | 1956-01-03 | 1956-12-29 |
| 1957 | 1957-01-20 | 1957-12-26 |
| 1958 | 1958-02-18 | 1958-12-17 |
| 1959 | 1959-01-26 | 1959-12-26 |
| 1960 | 1960-02-01 | 1960-12-16 |
| 1961 | 1961-02-09 | 1961-12-18 |
| 1962 | 1962-01-19 | 1962-12-31 |
| 1963 | 1963-01-28 | 1963-12-06 |
| 1964 | 1964-01-15 | 1964-12-29 |
| 1965 | 1965-01-12 | 1965-12-08 |
| 1966 | 1966-01-13 | 1966-12-20 |
| 1967 | 1967-01-28 | 1967-12-30 |
| 1968 | 1968-01-21 | 1968-12-27 |
| 1969 | 1969-01-26 | 1969-12-12 |
| 1970 | 1970-01-02 | 1970-12-30 |
| 1971 | 1971-01-30 | 1971-12-14 |
| 1972 | 1972-01-01 | 1972-11-25 |
| 1973 | 1973-01-13 | 1973-12-23 |
| 1974 | 1974-01-11 | 1974-12-28 |
| 1975 | 1975-01-11 | 1975-12-30 |
| 1976 | 1976-01-25 | 1976-12-16 |
| 1977 | 1977-01-15 | 1977-12-28 |
| 1978 | 1978-01-06 | 1978-12-14 |
| 1979 | 1979-01-17 | 1979-12-30 |
| 1980 | 1980-01-10 | 1980-12-29 |
| 1981 | 1981-01-19 | 1981-11-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 10 mm (0.39 in): Days with 10 mm or more rain | 37 | 47 | 1956 | 27 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 37 | 9 | 1953 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 2 | 1939 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1971 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.
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).