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Built 2026-10-19 (19 October 2026)

Sunflower 3 NNW Threshold Days by Year (USC00028273)

6 fixed thresholds counted per year at Sunflower 3 NNW (USC00028273): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sunflower 3 NNW Thresholds

  • Sunflower 3 NNW: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1978 with 33.
  • Sunflower 3 NNW: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 1978 with 15.
  • Sunflower 3 NNW: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1951 with 5.
  • Sunflower 3 NNW: days with 10 cm (3.9 in) or more of snowfall in 4 years, most in 1959 with 2.
  • 6 fixed thresholds have at least one qualifying day at Sunflower 3 NNW.
24 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Sunflower 3 NNW Days per year at Sunflower 3 NNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1978. 0102030401950: 151951: 181952: 221953: 111956: 71958: 241959: 171960: 171961: 131962: 131963: 201969: 191970: 181971: 211972: 171973: 231974: 141977: 181978: 331979: 161980: 271981: 81982: 211983: 2119501953195919621970197319781981
Days per year at Sunflower 3 NNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1978.
Days with 10 mm (0.39 in) or more of precipitation per year at Sunflower 3 NNW
YearDaysDecade average
19501516.3
19511816.3
19522216.3
19531116.3
1956716.3
19582416.3
19591716.3
19601716.4
19611316.4
19621316.4
19632016.4
19691916.4
19701820
19712120
19721720
19732320
19741420
19771820
19783320
19791620
19802719.3
1981819.3
19822119.3
19832119.3
First to last qualifying date each year at Sunflower 3 NNW For each year, a bar from the first to the last day at Sunflower 3 NNW meeting 10 mm (0.39 in). 1950: 30 January 1950 to 15 November 19501951: 30 January 1951 to 31 December 19511952: 14 January 1952 to 21 December 19521953: 7 January 1953 to 5 December 19531956: 21 January 1956 to 29 October 19561958: 4 February 1958 to 27 November 19581959: 7 January 1959 to 26 December 19591960: 1 January 1960 to 7 November 19601961: 27 January 1961 to 16 December 19611962: 14 January 1962 to 25 December 19621963: 3 January 1963 to 21 November 19631969: 14 January 1969 to 3 December 19691970: 28 February 1970 to 21 December 19701971: 3 January 1971 to 29 December 19711972: 30 May 1972 to 28 December 19721973: 11 February 1973 to 22 November 19731974: 1 January 1974 to 5 December 19741977: 1 January 1977 to 28 December 19771978: 10 January 1978 to 19 December 19781979: 6 January 1979 to 8 November 19791980: 9 January 1980 to 7 December 19801981: 10 July 1981 to 7 November 19811982: 1 January 1982 to 23 December 19821983: 25 January 1983 to 26 December 198319501953195919621970197319781981JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sunflower 3 NNW meeting 10 mm (0.39 in).
First to last qualifying date each year at Sunflower 3 NNW
YearFirst dateLast date
19501950-01-301950-11-15
19511951-01-301951-12-31
19521952-01-141952-12-21
19531953-01-071953-12-05
19561956-01-211956-10-29
19581958-02-041958-11-27
19591959-01-071959-12-26
19601960-01-011960-11-07
19611961-01-271961-12-16
19621962-01-141962-12-25
19631963-01-031963-11-21
19691969-01-141969-12-03
19701970-02-281970-12-21
19711971-01-031971-12-29
19721972-05-301972-12-28
19731973-02-111973-11-22
19741974-01-011974-12-05
19771977-01-011977-12-28
19781978-01-101978-12-19
19791979-01-061979-11-08
19801980-01-091980-12-07
19811981-07-101981-11-07
19821982-01-011982-12-23
19831983-01-251983-12-26

Every Fixed Threshold

Fixed thresholds at Sunflower 3 NNW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2433197821
25 mm (0.98 in): Days with 25 mm or more rain2415197810
50 mm (1.97 in): Days with 50 mm or more rain15519514
100 mm (3.94 in): Days with 100 mm or more rain3119511
200 mm (7.87 in): Days with 200 mm or more rain1119701
10 cm (3.9 in): Days with 10 cm or more snowfall4219591

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 Sunflower 3 NNW 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).