Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Peterson Threshold Days by Year (USC00136590)

7 fixed thresholds counted per year at Peterson (USC00136590): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Peterson Thresholds

  • Peterson: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1983 with 43.
  • Peterson: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1982 with 17.
  • Peterson: days with 10 cm (3.9 in) or more of snowfall in 35 years, most in 1961 with 8.
  • Peterson: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1977 with 3.
  • 7 fixed thresholds have at least one qualifying day at Peterson.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Peterson Days per year at Peterson with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1983. 02040601954: 281955: 141956: 141957: 281958: 61959: 301960: 241961: 311962: 271963: 161964: 261965: 301966: 151967: 191968: 271970: 201971: 261972: 261973: 271974: 221975: 311976: 131977: 271978: 221979: 241980: 221981: 231982: 281983: 431984: 291985: 261986: 291987: 211988: 211989: 141990: 251991: 251992: 241954195819621966197119751979198319871991
Days per year at Peterson with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1983.
Days with 10 mm (0.39 in) or more of precipitation per year at Peterson
YearDaysDecade average
19542820
19551420
19561420
19572820
1958620
19593020
19602423.9
19613123.9
19622723.9
19631623.9
19642623.9
19653023.9
19661523.9
19671923.9
19682723.9
19702023.8
19712623.8
19722623.8
19732723.8
19742223.8
19753123.8
19761323.8
19772723.8
19782223.8
19792423.8
19802225.6
19812325.6
19822825.6
19834325.6
19842925.6
19852625.6
19862925.6
19872125.6
19882125.6
19891425.6
19902524.7
19912524.7
19922424.7
First to last qualifying date each year at Peterson For each year, a bar from the first to the last day at Peterson meeting 10 mm (0.39 in). 1954: 20 February 1954 to 26 October 19541955: 19 February 1955 to 4 December 19551956: 21 March 1956 to 5 November 19561957: 18 March 1957 to 16 November 19571958: 27 February 1958 to 7 July 19581959: 10 February 1959 to 28 December 19591960: 2 January 1960 to 28 November 19601961: 2 February 1961 to 17 December 19611962: 18 February 1962 to 7 October 19621963: 5 March 1963 to 21 October 19631964: 20 March 1964 to 11 December 19641965: 10 February 1965 to 11 December 19651966: 9 February 1966 to 15 October 19661967: 31 March 1967 to 29 October 19671968: 3 April 1968 to 22 December 19681970: 20 March 1970 to 11 December 19701971: 19 February 1971 to 30 December 19711972: 22 March 1972 to 30 December 19721973: 11 March 1973 to 24 December 19731974: 9 March 1974 to 31 October 19741975: 3 January 1975 to 13 December 19751976: 12 March 1976 to 24 October 19761977: 24 February 1977 to 9 November 19771978: 1 January 1978 to 3 December 19781979: 4 March 1979 to 22 November 19791980: 17 January 1980 to 17 October 19801981: 29 March 1981 to 14 December 19811982: 19 March 1982 to 28 December 19821983: 3 February 1983 to 28 November 19831984: 30 January 1984 to 16 December 19841985: 4 March 1985 to 19 November 19851986: 13 March 1986 to 8 November 19861987: 1 March 1987 to 28 December 19871988: 20 January 1988 to 20 December 19881989: 3 March 1989 to 8 September 19891990: 21 January 1990 to 19 September 19901991: 19 February 1991 to 30 November 19911992: 23 January 1992 to 9 October 199219541959196419701975198019851990JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Peterson meeting 10 mm (0.39 in).
First to last qualifying date each year at Peterson
YearFirst dateLast date
19541954-02-201954-10-26
19551955-02-191955-12-04
19561956-03-211956-11-05
19571957-03-181957-11-16
19581958-02-271958-07-07
19591959-02-101959-12-28
19601960-01-021960-11-28
19611961-02-021961-12-17
19621962-02-181962-10-07
19631963-03-051963-10-21
19641964-03-201964-12-11
19651965-02-101965-12-11
19661966-02-091966-10-15
19671967-03-311967-10-29
19681968-04-031968-12-22
19701970-03-201970-12-11
19711971-02-191971-12-30
19721972-03-221972-12-30
19731973-03-111973-12-24
19741974-03-091974-10-31
19751975-01-031975-12-13
19761976-03-121976-10-24
19771977-02-241977-11-09
19781978-01-011978-12-03
19791979-03-041979-11-22
19801980-01-171980-10-17
19811981-03-291981-12-14
19821982-03-191982-12-28
19831983-02-031983-11-28
19841984-01-301984-12-16
19851985-03-041985-11-19
19861986-03-131986-11-08
19871987-03-011987-12-28
19881988-01-201988-12-20
19891989-03-031989-09-08
19901990-01-211990-09-19
19911991-02-191991-11-30
19921992-01-231992-10-09

Every Fixed Threshold

Fixed thresholds at Peterson
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3843198324
25 mm (0.98 in): Days with 25 mm or more rain3817198215
50 mm (1.97 in): Days with 50 mm or more rain28319773
100 mm (3.94 in): Days with 100 mm or more rain3119731
200 mm (7.87 in): Days with 200 mm or more rain1119731
10 cm (3.9 in): Days with 10 cm or more snowfall35819613
25 cm (9.8 in): Days with 25 cm or more snowfall7219611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

  • Data for Peterson 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).