Built 2026-10-19 (19 October 2026)

Ona Threshold Days by Year (NOE00109719)

6 fixed thresholds counted per year at Ona (NOE00109719): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ona Thresholds

  • Ona: nights with a minimum temperature at or below 0 C (32 F) in 46 years, most in 1917 with 84.
  • Ona: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1921 with 67.
  • Ona: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1921 with 12.
  • Ona: days with a maximum temperature at or below 0 C (32 F) in 22 years, most in 1958 with 21.
  • 6 fixed thresholds have at least one qualifying day at Ona.
46 years with a qualifying day
Nights at or below 0 C (32 F) per year at Ona Days per year at Ona with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 84 in 1917. 02550751001911: 401912: 351913: 461914: 271915: 751916: 341917: 841918: 441919: 681920: 261921: 281922: 531923: 511924: 601925: 601926: 391927: 431928: 231929: 401930: 291931: 661932: 381933: 431934: 331935: 371936: 441943: 321944: 331945: 471946: 331947: 731948: 281949: 271950: 291951: 461952: 571953: 361954: 341955: 701956: 501957: 401958: 781959: 311960: 411961: 391962: 471911191619211926193119361947195219571962
Days per year at Ona with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 84 in 1917.
Nights at or below 0 C (32 F) per year at Ona
YearDaysDecade average
19114050.3
19123550.3
19134650.3
19142750.3
19157550.3
19163450.3
19178450.3
19184450.3
19196850.3
19202642.3
19212842.3
19225342.3
19235142.3
19246042.3
19256042.3
19263942.3
19274342.3
19282342.3
19294042.3
19302941.4
19316641.4
19323841.4
19334341.4
19343341.4
19353741.4
19364441.4
19433239
19443339
19454739
19463339
19477339
19482839
19492739
19502947.1
19514647.1
19525747.1
19533647.1
19543447.1
19557047.1
19565047.1
19574047.1
19587847.1
19593147.1
19604142.3
19613942.3
19624742.3
First to last qualifying date each year at Ona For each year, a bar from the first to the last day at Ona meeting 0 C (32 F). 1911: 3 January 1911 to 30 December 19111912: 5 January 1912 to 30 November 19121913: 13 January 1913 to 31 December 19131914: 6 January 1914 to 25 December 19141915: 8 January 1915 to 31 December 19151916: 14 January 1916 to 21 December 19161917: 2 January 1917 to 27 December 19171918: 1 January 1918 to 25 December 19181919: 1 January 1919 to 30 December 19191920: 5 January 1920 to 28 December 19201921: 12 January 1921 to 31 December 19211922: 2 January 1922 to 19 December 19221923: 13 January 1923 to 31 December 19231924: 1 January 1924 to 4 December 19241925: 28 January 1925 to 29 December 19251926: 16 January 1926 to 22 December 19261927: 1 January 1927 to 31 December 19271928: 1 January 1928 to 17 December 19281929: 1 January 1929 to 27 December 19291930: 31 January 1930 to 28 December 19301931: 7 January 1931 to 31 December 19311932: 1 January 1932 to 8 December 19321933: 18 January 1933 to 31 December 19331934: 1 January 1934 to 28 December 19341935: 6 January 1935 to 23 December 19351936: 5 January 1936 to 23 December 19361943: 1 January 1943 to 31 December 19431944: 3 January 1944 to 31 December 19441945: 3 January 1945 to 31 December 19451946: 11 January 1946 to 16 December 19461947: 8 January 1947 to 31 December 19471948: 1 January 1948 to 21 December 19481949: 8 January 1949 to 12 December 19491950: 4 January 1950 to 31 December 19501951: 1 January 1951 to 11 December 19511952: 10 January 1952 to 31 December 19521953: 1 January 1953 to 19 April 19531954: 6 January 1954 to 25 March 19541955: 11 January 1955 to 31 December 19551956: 1 January 1956 to 27 December 19561957: 2 January 1957 to 31 December 19571958: 1 January 1958 to 28 December 19581959: 3 January 1959 to 13 December 19591960: 8 January 1960 to 25 December 19601961: 9 January 1961 to 30 December 19611962: 1 January 1962 to 31 December 196219111917192319291935194719531959JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ona meeting 0 C (32 F).
First to last qualifying date each year at Ona
YearFirst dateLast date
19111911-01-031911-12-30
19121912-01-051912-11-30
19131913-01-131913-12-31
19141914-01-061914-12-25
19151915-01-081915-12-31
19161916-01-141916-12-21
19171917-01-021917-12-27
19181918-01-011918-12-25
19191919-01-011919-12-30
19201920-01-051920-12-28
19211921-01-121921-12-31
19221922-01-021922-12-19
19231923-01-131923-12-31
19241924-01-011924-12-04
19251925-01-281925-12-29
19261926-01-161926-12-22
19271927-01-011927-12-31
19281928-01-011928-12-17
19291929-01-011929-12-27
19301930-01-311930-12-28
19311931-01-071931-12-31
19321932-01-011932-12-08
19331933-01-181933-12-31
19341934-01-011934-12-28
19351935-01-061935-12-23
19361936-01-051936-12-23
19431943-01-011943-12-31
19441944-01-031944-12-31
19451945-01-031945-12-31
19461946-01-111946-12-16
19471947-01-081947-12-31
19481948-01-011948-12-21
19491949-01-081949-12-12
19501950-01-041950-12-31
19511951-01-011951-12-11
19521952-01-101952-12-31
19531953-01-011953-04-19
19541954-01-061954-03-25
19551955-01-111955-12-31
19561956-01-011956-12-27
19571957-01-021957-12-31
19581958-01-011958-12-28
19591959-01-031959-12-13
19601960-01-081960-12-25
19611961-01-091961-12-30
19621962-01-011962-12-31

Every Fixed Threshold

Fixed thresholds at Ona
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max222119587
0 C (32 F): Frost days (min4684191747
-10 C (14 F): Days with min2119191
10 mm (0.39 in): Days with 10 mm or more rain3867192138
25 mm (0.98 in): Days with 25 mm or more rain341219214
50 mm (1.97 in): Days with 50 mm or more rain9319211

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1932.

Download the Data

  • Data for Ona 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).