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Built 2026-10-19 (19 October 2026)

Polk Threshold Days by Year (USC00256837)

6 fixed thresholds counted per year at Polk (USC00256837): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Polk Thresholds

  • Polk: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1965 with 31.
  • Polk: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 1965 with 13.
  • Polk: days with 10 cm (3.9 in) or more of snowfall in 50 years, most in 1983 with 7.
  • Polk: days with 50 mm (1.97 in) or more of precipitation in 47 years, most in 1967 with 4.
  • 6 fixed thresholds have at least one qualifying day at Polk.
66 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Polk Days per year at Polk with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1965. 0102030401950: 211951: 281954: 181955: 121957: 271958: 221961: 221962: 251963: 191964: 201965: 311966: 111967: 151968: 221969: 201971: 211972: 271973: 251974: 101975: 91976: 191977: 291978: 131979: 221980: 131981: 131982: 241984: 241985: 221986: 281987: 241988: 141989: 161990: 191991: 181992: 281995: 191996: 281997: 221998: 231999: 212000: 122001: 222002: 182003: 182004: 202005: 172006: 242007: 282008: 262010: 172012: 132013: 192014: 252015: 252016: 192017: 232018: 232019: 302020: 172021: 192022: 152023: 182024: 262025: 172026: 221950196219691977198519922001200820172024
Days per year at Polk with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1965.
Days with 10 mm (0.39 in) or more of precipitation per year at Polk
YearDaysDecade average
19502121.3
19512821.3
19541821.3
19551221.3
19572721.3
19582221.3
19612220.6
19622520.6
19631920.6
19642020.6
19653120.6
19661120.6
19671520.6
19682220.6
19692020.6
19712119.4
19722719.4
19732519.4
19741019.4
1975919.4
19761919.4
19772919.4
19781319.4
19792219.4
19801319.8
19811319.8
19822419.8
19842419.8
19852219.8
19862819.8
19872419.8
19881419.8
19891619.8
19901922.3
19911822.3
19922822.3
19951922.3
19962822.3
19972222.3
19982322.3
19992122.3
20001220.6
20012220.6
20021820.6
20031820.6
20042020.6
20051720.6
20062420.6
20072820.6
20082620.6
20101721.6
20121321.6
20131921.6
20142521.6
20152521.6
20161921.6
20172321.6
20182321.6
20193021.6
20201719.1
20211919.1
20221519.1
20231819.1
20242619.1
20251719.1
20262219.1
First to last qualifying date each year at Polk For each year, a bar from the first to the last day at Polk meeting 10 mm (0.39 in). 1950: 26 January 1950 to 2 October 19501951: 2 January 1951 to 14 December 19511954: 19 March 1954 to 26 October 19541955: 21 March 1955 to 4 December 19551957: 10 January 1957 to 14 October 19571958: 27 February 1958 to 18 November 19581961: 18 February 1961 to 17 December 19611962: 15 February 1962 to 20 October 19621963: 11 March 1963 to 22 September 19631964: 3 February 1964 to 28 August 19641965: 1 March 1965 to 30 September 19651966: 9 February 1966 to 28 December 19661967: 13 April 1967 to 16 December 19671968: 26 March 1968 to 21 December 19681969: 15 February 1969 to 27 December 19691971: 3 January 1971 to 17 November 19711972: 21 March 1972 to 30 December 19721973: 14 March 1973 to 21 November 19731974: 4 April 1974 to 31 October 19741975: 11 January 1975 to 5 September 19751976: 4 March 1976 to 25 September 19761977: 24 February 1977 to 9 November 19771978: 6 April 1978 to 15 August 19781979: 22 March 1979 to 29 December 19791980: 16 January 1980 to 27 October 19801981: 22 March 1981 to 16 December 19811982: 2 February 1982 to 28 December 19821984: 4 March 1984 to 10 November 19841985: 4 March 1985 to 19 October 19851986: 12 March 1986 to 8 December 19861987: 17 March 1987 to 28 November 19871988: 19 January 1988 to 20 December 19881989: 28 January 1989 to 29 October 19891990: 20 January 1990 to 17 December 19901991: 13 March 1991 to 23 December 19911992: 15 February 1992 to 8 October 19921995: 3 February 1995 to 5 October 19951996: 18 January 1996 to 17 November 19961997: 4 February 1997 to 30 November 19971998: 28 March 1998 to 10 November 19981999: 22 March 1999 to 23 November 19992000: 24 March 2000 to 6 November 20002001: 30 January 2001 to 25 November 20012002: 19 March 2002 to 4 October 20022003: 15 February 2003 to 3 November 20032004: 26 January 2004 to 19 November 20042005: 13 February 2005 to 20 October 20052006: 5 March 2006 to 31 December 20062007: 21 January 2007 to 2 December 20072008: 5 February 2008 to 19 December 20082010: 9 March 2010 to 26 October 20102012: 4 February 2012 to 11 November 20122013: 22 February 2013 to 6 November 20132014: 14 April 2014 to 9 December 20142015: 1 February 2015 to 14 December 20152016: 18 April 2016 to 5 October 20162017: 17 January 2017 to 10 October 20172018: 24 March 2018 to 27 December 20182019: 13 March 2019 to 29 December 20192020: 22 January 2020 to 11 November 20202021: 26 January 2021 to 28 October 20212022: 22 March 2022 to 10 September 20222023: 3 January 2023 to 24 December 20232024: 9 January 2024 to 31 December 20242025: 25 April 2025 to 15 September 20252026: 2 April 2026 to 1 October 202619501964197419841995200420152024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Polk meeting 10 mm (0.39 in).
First to last qualifying date each year at Polk
YearFirst dateLast date
19501950-01-261950-10-02
19511951-01-021951-12-14
19541954-03-191954-10-26
19551955-03-211955-12-04
19571957-01-101957-10-14
19581958-02-271958-11-18
19611961-02-181961-12-17
19621962-02-151962-10-20
19631963-03-111963-09-22
19641964-02-031964-08-28
19651965-03-011965-09-30
19661966-02-091966-12-28
19671967-04-131967-12-16
19681968-03-261968-12-21
19691969-02-151969-12-27
19711971-01-031971-11-17
19721972-03-211972-12-30
19731973-03-141973-11-21
19741974-04-041974-10-31
19751975-01-111975-09-05
19761976-03-041976-09-25
19771977-02-241977-11-09
19781978-04-061978-08-15
19791979-03-221979-12-29
19801980-01-161980-10-27
19811981-03-221981-12-16
19821982-02-021982-12-28
19841984-03-041984-11-10
19851985-03-041985-10-19
19861986-03-121986-12-08
19871987-03-171987-11-28
19881988-01-191988-12-20
19891989-01-281989-10-29
19901990-01-201990-12-17
19911991-03-131991-12-23
19921992-02-151992-10-08
19951995-02-031995-10-05
19961996-01-181996-11-17
19971997-02-041997-11-30
19981998-03-281998-11-10
19991999-03-221999-11-23
20002000-03-242000-11-06
20012001-01-302001-11-25
20022002-03-192002-10-04
20032003-02-152003-11-03
20042004-01-262004-11-19
20052005-02-132005-10-20
20062006-03-052006-12-31
20072007-01-212007-12-02
20082008-02-052008-12-19
20102010-03-092010-10-26
20122012-02-042012-11-11
20132013-02-222013-11-06
20142014-04-142014-12-09
20152015-02-012015-12-14
20162016-04-182016-10-05
20172017-01-172017-10-10
20182018-03-242018-12-27
20192019-03-132019-12-29
20202020-01-222020-11-11
20212021-01-262021-10-28
20222022-03-222022-09-10
20232023-01-032023-12-24
20242024-01-092024-12-31
20252025-04-252025-09-15
20262026-04-022026-10-01

Every Fixed Threshold

Fixed thresholds at Polk
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain6631196522
25 mm (0.98 in): Days with 25 mm or more rain661319658
50 mm (1.97 in): Days with 50 mm or more rain47419671
100 mm (3.94 in): Days with 100 mm or more rain10119571
10 cm (3.9 in): Days with 10 cm or more snowfall50719831
25 cm (9.8 in): Days with 25 cm or more snowfall3119711

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

  • Data for Polk 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 (2026-10-17).