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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Palmer Valley Threshold Days by Year (ASN00015519)

4 fixed thresholds counted per year at Palmer Valley (ASN00015519): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Palmer Valley Thresholds

  • Palmer Valley: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1974 with 20.
  • Palmer Valley: days with 25 mm (0.98 in) or more of precipitation in 21 years, most in 2000 with 7.
  • Palmer Valley: days with 50 mm (1.97 in) or more of precipitation in 9 years, most in 1953 with 3.
  • Palmer Valley: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1975 with 1.
  • 4 fixed thresholds have at least one qualifying day at Palmer Valley.
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Palmer Valley Days per year at Palmer Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1974. 051015201953: 91954: 51955: 71956: 51957: 61958: 51959: 21960: 41961: 21962: 71973: 91974: 201975: 121976: 81977: 81981: 51996: 11997: 71998: 62000: 172001: 202002: 42003: 42004: 82005: 62007: 32008: 52019: 11953195619591962197519811998200220052019
Days per year at Palmer Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1974.
Days with 10 mm (0.39 in) or more of precipitation per year at Palmer Valley
YearDaysDecade average
195395.6
195455.6
195575.6
195655.6
195765.6
195855.6
195925.6
196044.3
196124.3
196274.3
1973911.4
19742011.4
19751211.4
1976811.4
1977811.4
198155
199614.7
199774.7
199864.7
2000178.4
2001208.4
200248.4
200348.4
200488.4
200568.4
200738.4
200858.4
201911
First to last qualifying date each year at Palmer Valley For each year, a bar from the first to the last day at Palmer Valley meeting 10 mm (0.39 in). 1953: 5 January 1953 to 31 December 19531954: 15 April 1954 to 5 December 19541955: 24 April 1955 to 25 November 19551956: 22 February 1956 to 12 December 19561957: 26 April 1957 to 30 December 19571958: 6 March 1958 to 16 July 19581959: 13 February 1959 to 21 May 19591960: 17 January 1960 to 31 December 19601961: 16 April 1961 to 17 April 19611962: 11 January 1962 to 12 October 19621973: 3 January 1973 to 30 October 19731974: 17 January 1974 to 16 October 19741975: 2 July 1975 to 17 December 19751976: 5 January 1976 to 30 October 19761977: 17 February 1977 to 29 November 19771981: 27 January 1981 to 13 November 19811996: 26 July 1996 to 26 July 19961997: 22 January 1997 to 4 October 19971998: 8 February 1998 to 27 November 19982000: 26 January 2000 to 12 December 20002001: 26 January 2001 to 27 December 20012002: 20 February 2002 to 29 November 20022003: 20 February 2003 to 21 December 20032004: 2 February 2004 to 27 May 20042005: 7 July 2005 to 6 November 20052007: 21 March 2007 to 31 October 20072008: 16 November 2008 to 12 December 20082019: 18 May 2019 to 18 May 20191953195719611975199620012005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Palmer Valley meeting 10 mm (0.39 in).
First to last qualifying date each year at Palmer Valley
YearFirst dateLast date
19531953-01-051953-12-31
19541954-04-151954-12-05
19551955-04-241955-11-25
19561956-02-221956-12-12
19571957-04-261957-12-30
19581958-03-061958-07-16
19591959-02-131959-05-21
19601960-01-171960-12-31
19611961-04-161961-04-17
19621962-01-111962-10-12
19731973-01-031973-10-30
19741974-01-171974-10-16
19751975-07-021975-12-17
19761976-01-051976-10-30
19771977-02-171977-11-29
19811981-01-271981-11-13
19961996-07-261996-07-26
19971997-01-221997-10-04
19981998-02-081998-11-27
20002000-01-262000-12-12
20012001-01-262001-12-27
20022002-02-202002-11-29
20032003-02-202003-12-21
20042004-02-022004-05-27
20052005-07-072005-11-06
20072007-03-212007-10-31
20082008-11-162008-12-12
20192019-05-182019-05-18

Every Fixed Threshold

Fixed thresholds at Palmer Valley
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain282019741
25 mm (0.98 in): Days with 25 mm or more rain21720002
50 mm (1.97 in): Days with 50 mm or more rain9319531
100 mm (3.94 in): Days with 100 mm or more rain2119751

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

Download the Data

  • Data for Palmer Valley 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).