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

N.R.C. Threshold Days by Year (MI000067588)

3 fixed thresholds counted per year at N.R.C. (MI000067588): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for N.R.C. Thresholds

  • N.R.C.: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1989 with 47.
  • N.R.C.: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 1947 with 17.
  • N.R.C.: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1948 with 4.
  • 3 fixed thresholds have at least one qualifying day at N.R.C..
22 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at N.R.C. Days per year at N.R.C. with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1989. 02040601940: 251942: 251943: 281944: 281947: 341948: 361954: 231957: 301958: 321959: 131960: 301961: 311962: 311963: 301964: 261965: 211966: 261967: 191986: 271987: 251988: 221989: 4719401944195419591962196519861989
Days per year at N.R.C. with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1989.
Days with 10 mm (0.39 in) or more of precipitation per year at N.R.C.
YearDaysDecade average
19402529.3
19422529.3
19432829.3
19442829.3
19473429.3
19483629.3
19542324.5
19573024.5
19583224.5
19591324.5
19603026.8
19613126.8
19623126.8
19633026.8
19642626.8
19652126.8
19662626.8
19671926.8
19862730.3
19872530.3
19882230.3
19894730.3
First to last qualifying date each year at N.R.C. For each year, a bar from the first to the last day at N.R.C. meeting 10 mm (0.39 in). 1940: 2 January 1940 to 29 December 19401942: 8 January 1942 to 30 December 19421943: 1 January 1943 to 28 December 19431944: 4 January 1944 to 31 December 19441947: 1 January 1947 to 27 December 19471948: 5 January 1948 to 26 December 19481954: 6 January 1954 to 14 December 19541957: 4 January 1957 to 31 December 19571958: 1 January 1958 to 25 December 19581959: 3 January 1959 to 29 March 19591960: 4 January 1960 to 29 December 19601961: 5 January 1961 to 28 December 19611962: 3 January 1962 to 31 December 19621963: 1 January 1963 to 27 December 19631964: 8 January 1964 to 29 December 19641965: 1 January 1965 to 29 December 19651966: 1 January 1966 to 29 December 19661967: 23 January 1967 to 17 December 19671986: 3 January 1986 to 29 December 19861987: 19 January 1987 to 28 December 19871988: 5 January 1988 to 17 December 19881989: 3 January 1989 to 29 December 198919401944195419591962196519861989JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at N.R.C. meeting 10 mm (0.39 in).
First to last qualifying date each year at N.R.C.
YearFirst dateLast date
19401940-01-021940-12-29
19421942-01-081942-12-30
19431943-01-011943-12-28
19441944-01-041944-12-31
19471947-01-011947-12-27
19481948-01-051948-12-26
19541954-01-061954-12-14
19571957-01-041957-12-31
19581958-01-011958-12-25
19591959-01-031959-03-29
19601960-01-041960-12-29
19611961-01-051961-12-28
19621962-01-031962-12-31
19631963-01-011963-12-27
19641964-01-081964-12-29
19651965-01-011965-12-29
19661966-01-011966-12-29
19671967-01-231967-12-17
19861986-01-031986-12-29
19871987-01-191987-12-28
19881988-01-051988-12-17
19891989-01-031989-12-29

Every Fixed Threshold

Fixed thresholds at N.R.C.
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2247198947
25 mm (0.98 in): Days with 25 mm or more rain2217194713
50 mm (1.97 in): Days with 50 mm or more rain19419483

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

  • Data for N.R.C. 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).