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Built 2026-10-19 (19 October 2026)

Mahwah Threshold Days by Year (USC00285104)

8 fixed thresholds counted per year at Mahwah (USC00285104): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mahwah Thresholds

  • Mahwah: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1983 with 53.
  • Mahwah: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1983 with 23.
  • Mahwah: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1977 with 7.
  • Mahwah: days with 10 cm (3.9 in) or more of snowfall in 15 years, most in 1957 with 3.
  • 8 fixed thresholds have at least one qualifying day at Mahwah.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Mahwah Days per year at Mahwah with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1983. 02040601957: 301958: 431959: 431960: 401961: 381962: 421963: 371964: 261965: 301966: 341967: 451968: 361969: 401970: 331971: 371972: 501973: 461974: 361975: 501976: 351977: 381978: 301979: 441980: 291981: 261982: 371983: 531984: 401985: 311986: 411987: 3819571961196519691973197719811985
Days per year at Mahwah with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 53 in 1983.
Days with 10 mm (0.39 in) or more of precipitation per year at Mahwah
YearDaysDecade average
19573038.7
19584338.7
19594338.7
19604036.8
19613836.8
19624236.8
19633736.8
19642636.8
19653036.8
19663436.8
19674536.8
19683636.8
19694036.8
19703339.9
19713739.9
19725039.9
19734639.9
19743639.9
19755039.9
19763539.9
19773839.9
19783039.9
19794439.9
19802936.9
19812636.9
19823736.9
19835336.9
19844036.9
19853136.9
19864136.9
19873836.9
First to last qualifying date each year at Mahwah For each year, a bar from the first to the last day at Mahwah meeting 10 mm (0.39 in). 1957: 23 January 1957 to 27 December 19571958: 15 January 1958 to 4 December 19581959: 2 January 1959 to 29 December 19591960: 3 January 1960 to 30 December 19601961: 1 January 1961 to 19 December 19611962: 7 January 1962 to 22 December 19621963: 13 January 1963 to 24 December 19631964: 2 January 1964 to 28 December 19641965: 3 January 1965 to 26 December 19651966: 3 January 1966 to 29 December 19661967: 9 January 1967 to 29 December 19671968: 1 January 1968 to 23 December 19681969: 24 January 1969 to 27 December 19691970: 3 February 1970 to 17 December 19701971: 5 January 1971 to 31 December 19711972: 3 January 1972 to 22 December 19721973: 1 January 1973 to 27 December 19731974: 4 January 1974 to 17 December 19741975: 1 January 1975 to 31 December 19751976: 8 January 1976 to 8 December 19761977: 11 January 1977 to 22 December 19771978: 9 January 1978 to 25 December 19781979: 3 January 1979 to 25 December 19791980: 12 January 1980 to 29 November 19801981: 2 February 1981 to 21 November 19811982: 4 January 1982 to 17 December 19821983: 6 January 1983 to 29 December 19831984: 25 January 1984 to 22 December 19841985: 13 February 1985 to 12 December 19851986: 5 January 1986 to 25 December 19861987: 2 January 1987 to 16 December 198719571961196519691973197719811985JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mahwah meeting 10 mm (0.39 in).
First to last qualifying date each year at Mahwah
YearFirst dateLast date
19571957-01-231957-12-27
19581958-01-151958-12-04
19591959-01-021959-12-29
19601960-01-031960-12-30
19611961-01-011961-12-19
19621962-01-071962-12-22
19631963-01-131963-12-24
19641964-01-021964-12-28
19651965-01-031965-12-26
19661966-01-031966-12-29
19671967-01-091967-12-29
19681968-01-011968-12-23
19691969-01-241969-12-27
19701970-02-031970-12-17
19711971-01-051971-12-31
19721972-01-031972-12-22
19731973-01-011973-12-27
19741974-01-041974-12-17
19751975-01-011975-12-31
19761976-01-081976-12-08
19771977-01-111977-12-22
19781978-01-091978-12-25
19791979-01-031979-12-25
19801980-01-121980-11-29
19811981-02-021981-11-21
19821982-01-041982-12-17
19831983-01-061983-12-29
19841984-01-251984-12-22
19851985-02-131985-12-12
19861986-01-051986-12-25
19871987-01-021987-12-16

Every Fixed Threshold

Fixed thresholds at Mahwah
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3153198338
25 mm (0.98 in): Days with 25 mm or more rain3123198315
50 mm (1.97 in): Days with 50 mm or more rain27719772
100 mm (3.94 in): Days with 100 mm or more rain7219711
200 mm (7.87 in): Days with 200 mm or more rain1119711
10 cm (3.9 in): Days with 10 cm or more snowfall15319572
25 cm (9.8 in): Days with 25 cm or more snowfall6219601
50 cm (19.7 in): Days with 50 cm or more snowfall2119601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.

Download the Data

  • Data for Mahwah threshold days by year: CSV or JSON. Field meanings are on the data page.

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).