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Built 2026-10-19 (19 October 2026)

Studley 9NNW Threshold Days by Year (USC00147904)

6 fixed thresholds counted per year at Studley 9NNW (USC00147904): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Studley 9NNW Thresholds

  • Studley 9NNW: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1977 with 26.
  • Studley 9NNW: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 2008 with 12.
  • Studley 9NNW: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 2005 with 3.
  • Studley 9NNW: days with 10 cm (3.9 in) or more of snowfall in 6 years, most in 1970 with 3.
  • 6 fixed thresholds have at least one qualifying day at Studley 9NNW.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Studley 9NNW Days per year at Studley 9NNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1977. 01020301970: 121971: 191972: 171976: 121977: 261979: 181980: 111981: 211982: 151983: 131984: 121986: 111987: 171988: 111989: 141990: 221991: 171992: 211993: 231994: 191995: 231996: 201997: 161998: 191999: 182000: 202001: 202002: 92003: 132004: 182005: 162006: 172007: 172008: 182009: 232010: 122011: 192012: 102013: 132014: 142015: 18197019791984199019952000200520102015
Days per year at Studley 9NNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1977.
Days with 10 mm (0.39 in) or more of precipitation per year at Studley 9NNW
YearDaysDecade average
19701217.3
19711917.3
19721717.3
19761217.3
19772617.3
19791817.3
19801113.9
19812113.9
19821513.9
19831313.9
19841213.9
19861113.9
19871713.9
19881113.9
19891413.9
19902219.8
19911719.8
19922119.8
19932319.8
19941919.8
19952319.8
19962019.8
19971619.8
19981919.8
19991819.8
20002017.1
20012017.1
2002917.1
20031317.1
20041817.1
20051617.1
20061717.1
20071717.1
20081817.1
20092317.1
20101214.3
20111914.3
20121014.3
20131314.3
20141414.3
20151814.3
First to last qualifying date each year at Studley 9NNW For each year, a bar from the first to the last day at Studley 9NNW meeting 10 mm (0.39 in). 1970: 18 April 1970 to 16 September 19701971: 19 February 1971 to 17 November 19711972: 16 April 1972 to 13 November 19721976: 6 April 1976 to 27 October 19761977: 19 March 1977 to 17 December 19771979: 19 January 1979 to 31 October 19791980: 28 March 1980 to 27 October 19801981: 4 March 1981 to 30 November 19811982: 19 March 1982 to 28 November 19821983: 20 February 1983 to 19 November 19831984: 26 March 1984 to 25 October 19841986: 9 May 1986 to 11 October 19861987: 27 February 1987 to 8 November 19871988: 19 January 1988 to 14 September 19881989: 17 May 1989 to 13 September 19891990: 20 January 1990 to 3 November 19901991: 17 March 1991 to 12 December 19911992: 2 January 1992 to 12 November 19921993: 11 January 1993 to 12 November 19931994: 10 April 1994 to 21 November 19941995: 28 January 1995 to 21 September 19951996: 15 April 1996 to 16 November 19961997: 24 February 1997 to 29 November 19971998: 10 February 1998 to 3 November 19981999: 31 January 1999 to 29 August 19992000: 23 February 2000 to 12 November 20002001: 30 January 2001 to 24 November 20012002: 31 January 2002 to 23 October 20022003: 19 March 2003 to 10 September 20032004: 29 February 2004 to 18 November 20042005: 21 March 2005 to 11 October 20052006: 19 March 2006 to 31 December 20062007: 21 January 2007 to 10 September 20072008: 17 March 2008 to 11 November 20082009: 13 April 2009 to 7 December 20092010: 9 March 2010 to 15 September 20102011: 15 April 2011 to 9 October 20112012: 22 March 2012 to 15 December 20122013: 20 February 2013 to 5 November 20132014: 24 April 2014 to 15 December 20142015: 19 April 2015 to 14 December 20151970198019871993199920052011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Studley 9NNW meeting 10 mm (0.39 in).
First to last qualifying date each year at Studley 9NNW
YearFirst dateLast date
19701970-04-181970-09-16
19711971-02-191971-11-17
19721972-04-161972-11-13
19761976-04-061976-10-27
19771977-03-191977-12-17
19791979-01-191979-10-31
19801980-03-281980-10-27
19811981-03-041981-11-30
19821982-03-191982-11-28
19831983-02-201983-11-19
19841984-03-261984-10-25
19861986-05-091986-10-11
19871987-02-271987-11-08
19881988-01-191988-09-14
19891989-05-171989-09-13
19901990-01-201990-11-03
19911991-03-171991-12-12
19921992-01-021992-11-12
19931993-01-111993-11-12
19941994-04-101994-11-21
19951995-01-281995-09-21
19961996-04-151996-11-16
19971997-02-241997-11-29
19981998-02-101998-11-03
19991999-01-311999-08-29
20002000-02-232000-11-12
20012001-01-302001-11-24
20022002-01-312002-10-23
20032003-03-192003-09-10
20042004-02-292004-11-18
20052005-03-212005-10-11
20062006-03-192006-12-31
20072007-01-212007-09-10
20082008-03-172008-11-11
20092009-04-132009-12-07
20102010-03-092010-09-15
20112011-04-152011-10-09
20122012-03-222012-12-15
20132013-02-202013-11-05
20142014-04-242014-12-15
20152015-04-192015-12-14

Every Fixed Threshold

Fixed thresholds at Studley 9NNW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4126197718
25 mm (0.98 in): Days with 25 mm or more rain411220087
50 mm (1.97 in): Days with 50 mm or more rain26320051
100 mm (3.94 in): Days with 100 mm or more rain1119991
10 cm (3.9 in): Days with 10 cm or more snowfall6319701
25 cm (9.8 in): Days with 25 cm or more snowfall1120131

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

  • Data for Studley 9NNW 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).