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

Riverton Lock 3 Threshold Days by Year (USC00167897)

5 fixed thresholds counted per year at Riverton Lock 3 (USC00167897): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Riverton Lock 3 Thresholds

  • Riverton Lock 3: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1961 with 54.
  • Riverton Lock 3: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1957 with 24.
  • Riverton Lock 3: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1957 with 7.
  • Riverton Lock 3: days with 100 mm (3.94 in) or more of precipitation in 13 years, most in 1968 with 2.
  • 5 fixed thresholds have at least one qualifying day at Riverton Lock 3.
27 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Riverton Lock 3 Days per year at Riverton Lock 3 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 54 in 1961. 02040601941: 431942: 401943: 321944: 431945: 441948: 381949: 481950: 451952: 301953: 361954: 271955: 411956: 301957: 501959: 411960: 321961: 541962: 381963: 341964: 321965: 291966: 401967: 361968: 461969: 261970: 401971: 42194119441949195319561960196319661969
Days per year at Riverton Lock 3 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 54 in 1961.
Days with 10 mm (0.39 in) or more of precipitation per year at Riverton Lock 3
YearDaysDecade average
19414341.1
19424041.1
19433241.1
19444341.1
19454441.1
19483841.1
19494841.1
19504537.5
19523037.5
19533637.5
19542737.5
19554137.5
19563037.5
19575037.5
19594137.5
19603236.7
19615436.7
19623836.7
19633436.7
19643236.7
19652936.7
19664036.7
19673636.7
19684636.7
19692636.7
19704041
19714241
First to last qualifying date each year at Riverton Lock 3 For each year, a bar from the first to the last day at Riverton Lock 3 meeting 10 mm (0.39 in). 1941: 16 January 1941 to 23 December 19411942: 19 January 1942 to 28 December 19421943: 7 January 1943 to 28 December 19431944: 2 January 1944 to 28 December 19441945: 1 January 1945 to 18 December 19451948: 1 January 1948 to 29 December 19481949: 3 January 1949 to 17 December 19491950: 4 January 1950 to 5 December 19501952: 27 January 1952 to 31 December 19521953: 9 January 1953 to 28 December 19531954: 10 January 1954 to 29 December 19541955: 8 January 1955 to 25 November 19551956: 19 January 1956 to 23 December 19561957: 4 January 1957 to 28 December 19571959: 1 January 1959 to 17 December 19591960: 6 January 1960 to 31 December 19601961: 7 January 1961 to 18 December 19611962: 1 January 1962 to 29 December 19621963: 20 January 1963 to 21 December 19631964: 6 January 1964 to 11 December 19641965: 10 January 1965 to 6 November 19651966: 2 January 1966 to 31 December 19661967: 14 January 1967 to 31 December 19671968: 4 January 1968 to 31 December 19681969: 31 January 1969 to 30 December 19691970: 6 January 1970 to 31 December 19701971: 4 January 1971 to 17 December 19711941194519521956196119651969JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Riverton Lock 3 meeting 10 mm (0.39 in).
First to last qualifying date each year at Riverton Lock 3
YearFirst dateLast date
19411941-01-161941-12-23
19421942-01-191942-12-28
19431943-01-071943-12-28
19441944-01-021944-12-28
19451945-01-011945-12-18
19481948-01-011948-12-29
19491949-01-031949-12-17
19501950-01-041950-12-05
19521952-01-271952-12-31
19531953-01-091953-12-28
19541954-01-101954-12-29
19551955-01-081955-11-25
19561956-01-191956-12-23
19571957-01-041957-12-28
19591959-01-011959-12-17
19601960-01-061960-12-31
19611961-01-071961-12-18
19621962-01-011962-12-29
19631963-01-201963-12-21
19641964-01-061964-12-11
19651965-01-101965-11-06
19661966-01-021966-12-31
19671967-01-141967-12-31
19681968-01-041968-12-31
19691969-01-311969-12-30
19701970-01-061970-12-31
19711971-01-041971-12-17

Every Fixed Threshold

Fixed thresholds at Riverton Lock 3
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2754196142
25 mm (0.98 in): Days with 25 mm or more rain2724195714
50 mm (1.97 in): Days with 50 mm or more rain27719576
100 mm (3.94 in): Days with 100 mm or more rain13219682
10 cm (3.9 in): Days with 10 cm or more snowfall1119491

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

  • Data for Riverton Lock 3 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).