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Built 2026-10-16 (16 October 2026)

Mary Valley Station Threshold Days by Year

4 fixed thresholds counted per year at Mary Valley Station (ASN00028016): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mary Valley Station Thresholds

  • Mary Valley Station: days with 10 mm (0.39 in) or more of precipitation in 25 years, most in 1974 with 49.
  • Mary Valley Station: days with 25 mm (0.98 in) or more of precipitation in 25 years, most in 1974 with 23.
  • Mary Valley Station: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 1973 with 9.
  • Mary Valley Station: days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1971 with 2.
  • 4 fixed thresholds have at least one qualifying day at Mary Valley Station.
25 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Mary Valley Station Days per year at Mary Valley Station with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 49 in 1974. 02040601969: 191970: 341971: 301972: 261973: 421974: 491975: 451979: 391980: 301981: 271982: 281983: 261984: 341985: 251986: 271987: 261988: 291989: 271990: 191991: 371992: 311993: 321994: 271995: 321996: 36196919721975198119841987199019931996
Days per year at Mary Valley Station with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 49 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Mary Valley Station
YearDaysDecade average
19691919
19703437.9
19713037.9
19722637.9
19734237.9
19744937.9
19754537.9
19793937.9
19803027.9
19812727.9
19822827.9
19832627.9
19843427.9
19852527.9
19862727.9
19872627.9
19882927.9
19892727.9
19901930.6
19913730.6
19923130.6
19933230.6
19942730.6
19953230.6
19963630.6
First to last qualifying date each year at Mary Valley Station For each year, a bar from the first to the last day at Mary Valley Station meeting 10 mm (0.39 in). 1969: 4 January 1969 to 17 December 19691970: 15 January 1970 to 31 December 19701971: 23 January 1971 to 22 December 19711972: 1 January 1972 to 18 December 19721973: 21 January 1973 to 29 December 19731974: 5 January 1974 to 29 December 19741975: 1 January 1975 to 27 December 19751979: 1 January 1979 to 31 December 19791980: 3 January 1980 to 21 December 19801981: 4 January 1981 to 26 November 19811982: 15 January 1982 to 10 December 19821983: 5 January 1983 to 20 November 19831984: 2 January 1984 to 27 December 19841985: 15 January 1985 to 29 December 19851986: 2 January 1986 to 20 December 19861987: 5 January 1987 to 29 December 19871988: 12 January 1988 to 30 December 19881989: 2 January 1989 to 31 December 19891990: 13 January 1990 to 23 December 19901991: 1 January 1991 to 18 December 19911992: 4 January 1992 to 28 December 19921993: 3 January 1993 to 31 December 19931994: 7 January 1994 to 28 December 19941995: 18 January 1995 to 26 December 19951996: 2 January 1996 to 27 December 19961969197319801984198819921996JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mary Valley Station meeting 10 mm (0.39 in).
First to last qualifying date each year at Mary Valley Station
YearFirst dateLast date
19691969-01-041969-12-17
19701970-01-151970-12-31
19711971-01-231971-12-22
19721972-01-011972-12-18
19731973-01-211973-12-29
19741974-01-051974-12-29
19751975-01-011975-12-27
19791979-01-011979-12-31
19801980-01-031980-12-21
19811981-01-041981-11-26
19821982-01-151982-12-10
19831983-01-051983-11-20
19841984-01-021984-12-27
19851985-01-151985-12-29
19861986-01-021986-12-20
19871987-01-051987-12-29
19881988-01-121988-12-30
19891989-01-021989-12-31
19901990-01-131990-12-23
19911991-01-011991-12-18
19921992-01-041992-12-28
19931993-01-031993-12-31
19941994-01-071994-12-28
19951995-01-181995-12-26
19961996-01-021996-12-27

Every Fixed Threshold

Fixed thresholds at Mary Valley Station
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2549197436
25 mm (0.98 in): Days with 25 mm or more rain2523197416
50 mm (1.97 in): Days with 50 mm or more rain25919735
100 mm (3.94 in): Days with 100 mm or more rain11219712

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

  • Data for Mary Valley Station 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).