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Built 2026-10-19 (19 October 2026)

Rocksprings 18 SW Threshold Days by Year (USC00417712)

5 fixed thresholds counted per year at Rocksprings 18 SW (USC00417712): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rocksprings 18 SW Thresholds

  • Rocksprings 18 SW: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1976 with 30.
  • Rocksprings 18 SW: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1981 with 16.
  • Rocksprings 18 SW: days with 50 mm (1.97 in) or more of precipitation in 20 years, most in 1964 with 7.
  • Rocksprings 18 SW: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1981 with 2.
  • 5 fixed thresholds have at least one qualifying day at Rocksprings 18 SW.
27 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rocksprings 18 SW Days per year at Rocksprings 18 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1976. 01020301964: 231965: 201966: 171967: 161968: 221969: 261970: 131972: 151973: 191974: 151975: 231976: 301977: 91978: 231979: 131980: 121981: 241982: 181983: 241984: 111986: 261987: 211988: 151989: 131990: 241991: 211992: 20196419671970197419771980198319871990
Days per year at Rocksprings 18 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1976.
Days with 10 mm (0.39 in) or more of precipitation per year at Rocksprings 18 SW
YearDaysDecade average
19642320.7
19652020.7
19661720.7
19671620.7
19682220.7
19692620.7
19701317.8
19721517.8
19731917.8
19741517.8
19752317.8
19763017.8
1977917.8
19782317.8
19791317.8
19801218.2
19812418.2
19821818.2
19832418.2
19841118.2
19862618.2
19872118.2
19881518.2
19891318.2
19902421.7
19912121.7
19922021.7
First to last qualifying date each year at Rocksprings 18 SW For each year, a bar from the first to the last day at Rocksprings 18 SW meeting 10 mm (0.39 in). 1964: 30 January 1964 to 12 November 19641965: 22 January 1965 to 2 December 19651966: 23 February 1966 to 5 October 19661967: 6 February 1967 to 15 December 19671968: 8 January 1968 to 1 December 19681969: 14 February 1969 to 29 December 19691970: 14 January 1970 to 27 September 19701972: 20 March 1972 to 24 November 19721973: 25 January 1973 to 13 October 19731974: 30 April 1974 to 31 October 19741975: 1 February 1975 to 3 November 19751976: 5 April 1976 to 14 December 19761977: 8 February 1977 to 8 November 19771978: 12 February 1978 to 31 December 19781979: 5 February 1979 to 12 December 19791980: 16 February 1980 to 8 December 19801981: 1 March 1981 to 22 October 19811982: 20 February 1982 to 27 December 19821983: 21 January 1983 to 5 November 19831984: 9 January 1984 to 31 December 19841986: 8 January 1986 to 23 December 19861987: 5 February 1987 to 19 December 19871988: 12 May 1988 to 18 September 19881989: 20 January 1989 to 22 November 19891990: 1 February 1990 to 8 November 19901991: 18 January 1991 to 21 December 19911992: 18 January 1992 to 14 December 19921964196819731977198119861990JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rocksprings 18 SW meeting 10 mm (0.39 in).
First to last qualifying date each year at Rocksprings 18 SW
YearFirst dateLast date
19641964-01-301964-11-12
19651965-01-221965-12-02
19661966-02-231966-10-05
19671967-02-061967-12-15
19681968-01-081968-12-01
19691969-02-141969-12-29
19701970-01-141970-09-27
19721972-03-201972-11-24
19731973-01-251973-10-13
19741974-04-301974-10-31
19751975-02-011975-11-03
19761976-04-051976-12-14
19771977-02-081977-11-08
19781978-02-121978-12-31
19791979-02-051979-12-12
19801980-02-161980-12-08
19811981-03-011981-10-22
19821982-02-201982-12-27
19831983-01-211983-11-05
19841984-01-091984-12-31
19861986-01-081986-12-23
19871987-02-051987-12-19
19881988-05-121988-09-18
19891989-01-201989-11-22
19901990-02-011990-11-08
19911991-01-181991-12-21
19921992-01-181992-12-14

Every Fixed Threshold

Fixed thresholds at Rocksprings 18 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2730197620
25 mm (0.98 in): Days with 25 mm or more rain271619818
50 mm (1.97 in): Days with 50 mm or more rain20719643
100 mm (3.94 in): Days with 100 mm or more rain5219812
200 mm (7.87 in): Days with 200 mm or more rain1119641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

  • Data for Rocksprings 18 SW 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).