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

Romeo 1 N Threshold Days by Year (USC00207097)

12 fixed thresholds counted per year at Romeo 1 N (USC00207097): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Romeo 1 N Thresholds

  • Romeo 1 N: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1950 with 37.
  • Romeo 1 N: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1948 with 11.
  • Romeo 1 N: days with 10 cm (3.9 in) or more of snowfall in 14 years, most in 1954 with 4.
  • Romeo 1 N: days with 50 mm (1.97 in) or more of precipitation in 12 years, most in 1967 with 3.
  • 12 fixed thresholds have at least one qualifying day at Romeo 1 N.
26 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Romeo 1 N Days per year at Romeo 1 N with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1950. 0102030401941: 211943: 301944: 171948: 281950: 371952: 201953: 261954: 251955: 191956: 261957: 291958: 101959: 301960: 111961: 261962: 191963: 141964: 241965: 231966: 241967: 331968: 191969: 261970: 221971: 211972: 27194119481953195619591962196519681971
Days per year at Romeo 1 N with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Romeo 1 N
YearDaysDecade average
19412124
19433024
19441724
19482824
19503724.7
19522024.7
19532624.7
19542524.7
19551924.7
19562624.7
19572924.7
19581024.7
19593024.7
19601121.9
19612621.9
19621921.9
19631421.9
19642421.9
19652321.9
19662421.9
19673321.9
19681921.9
19692621.9
19702223.3
19712123.3
19722723.3
First to last qualifying date each year at Romeo 1 N For each year, a bar from the first to the last day at Romeo 1 N meeting 10 mm (0.39 in). 1941: 4 March 1941 to 24 December 19411943: 4 January 1943 to 7 November 19431944: 27 January 1944 to 11 December 19441948: 2 January 1948 to 14 December 19481950: 3 January 1950 to 7 December 19501952: 20 January 1952 to 21 December 19521953: 9 January 1953 to 28 October 19531954: 27 January 1954 to 28 December 19541955: 2 January 1955 to 16 November 19551956: 17 February 1956 to 22 December 19561957: 22 January 1957 to 26 December 19571958: 6 April 1958 to 10 October 19581959: 21 January 1959 to 28 December 19591960: 13 January 1960 to 16 November 19601961: 23 February 1961 to 5 December 19611962: 15 January 1962 to 10 November 19621963: 18 April 1963 to 1 November 19631964: 9 January 1964 to 20 September 19641965: 2 January 1965 to 25 December 19651966: 1 March 1966 to 29 December 19661967: 7 January 1967 to 22 December 19671968: 14 January 1968 to 28 December 19681969: 18 January 1969 to 19 November 19691970: 4 March 1970 to 11 December 19701971: 5 February 1971 to 30 December 19711972: 14 March 1972 to 31 December 19721941195019551959196319671971JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Romeo 1 N meeting 10 mm (0.39 in).
First to last qualifying date each year at Romeo 1 N
YearFirst dateLast date
19411941-03-041941-12-24
19431943-01-041943-11-07
19441944-01-271944-12-11
19481948-01-021948-12-14
19501950-01-031950-12-07
19521952-01-201952-12-21
19531953-01-091953-10-28
19541954-01-271954-12-28
19551955-01-021955-11-16
19561956-02-171956-12-22
19571957-01-221957-12-26
19581958-04-061958-10-10
19591959-01-211959-12-28
19601960-01-131960-11-16
19611961-02-231961-12-05
19621962-01-151962-11-10
19631963-04-181963-11-01
19641964-01-091964-09-20
19651965-01-021965-12-25
19661966-03-011966-12-29
19671967-01-071967-12-22
19681968-01-141968-12-28
19691969-01-181969-11-19
19701970-03-041970-12-11
19711971-02-051971-12-30
19721972-03-141972-12-31

Every Fixed Threshold

Fixed thresholds at Romeo 1 N
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days127189627
90 F (32.2 C): Days112189612
0 C (32 F): Ice days (max151189651
0 C (32 F): Frost days (min11471896147
-10 C (14 F): Days with min139189639
-20 C (-4 F): Days with min1218962
20 C (68 F): Tropical nights (min1518965
25 C (77 F): Days with min1318963
10 mm (0.39 in): Days with 10 mm or more rain2637195027
25 mm (0.98 in): Days with 25 mm or more rain261119487
50 mm (1.97 in): Days with 50 mm or more rain12319671
10 cm (3.9 in): Days with 10 cm or more snowfall14419541

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

  • Data for Romeo 1 N 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).