Built 2026-10-19 (19 October 2026)

Dona Threshold Days by Year (CA006042063)

5 fixed thresholds counted per year at Dona (CA006042063): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dona Thresholds

  • Dona: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1943 with 30.
  • Dona: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1938 with 10.
  • Dona: days with 10 cm (3.9 in) or more of snowfall in 30 years, most in 1937 with 10.
  • Dona: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1950 with 3.
  • 5 fixed thresholds have at least one qualifying day at Dona.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Dona Days per year at Dona with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1943. 01020301928: 201929: 181930: 181931: 131932: 211933: 211934: 211935: 241936: 151937: 261938: 221939: 171940: 191941: 261942: 151943: 301944: 301945: 171946: 241947: 241948: 171949: 201950: 301951: 241952: 171953: 241954: 201955: 241956: 201957: 181958: 1619281932193619401944194819521956
Days per year at Dona with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1943.
Days with 10 mm (0.39 in) or more of precipitation per year at Dona
YearDaysDecade average
19282019
19291819
19301819.8
19311319.8
19322119.8
19332119.8
19342119.8
19352419.8
19361519.8
19372619.8
19382219.8
19391719.8
19401922.2
19412622.2
19421522.2
19433022.2
19443022.2
19451722.2
19462422.2
19472422.2
19481722.2
19492022.2
19503021.4
19512421.4
19521721.4
19532421.4
19542021.4
19552421.4
19562021.4
19571821.4
19581621.4
First to last qualifying date each year at Dona For each year, a bar from the first to the last day at Dona meeting 10 mm (0.39 in). 1928: 12 April 1928 to 14 October 19281929: 22 January 1929 to 30 December 19291930: 30 April 1930 to 20 November 19301931: 24 May 1931 to 24 November 19311932: 17 January 1932 to 3 December 19321933: 10 January 1933 to 14 December 19331934: 5 March 1934 to 30 November 19341935: 2 January 1935 to 22 December 19351936: 13 February 1936 to 30 December 19361937: 2 January 1937 to 31 December 19371938: 13 February 1938 to 25 December 19381939: 9 January 1939 to 9 October 19391940: 16 February 1940 to 26 November 19401941: 1 January 1941 to 6 October 19411942: 29 April 1942 to 30 October 19421943: 13 January 1943 to 8 November 19431944: 2 March 1944 to 29 November 19441945: 15 February 1945 to 1 December 19451946: 5 January 1946 to 16 December 19461947: 13 January 1947 to 30 December 19471948: 18 March 1948 to 15 December 19481949: 23 January 1949 to 26 November 19491950: 3 January 1950 to 23 November 19501951: 5 February 1951 to 31 December 19511952: 29 February 1952 to 25 November 19521953: 13 January 1953 to 5 December 19531954: 6 January 1954 to 26 November 19541955: 11 January 1955 to 21 December 19551956: 19 January 1956 to 16 December 19561957: 21 January 1957 to 18 November 19571958: 21 April 1958 to 2 December 195819281932193619401944194819521956JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Dona meeting 10 mm (0.39 in).
First to last qualifying date each year at Dona
YearFirst dateLast date
19281928-04-121928-10-14
19291929-01-221929-12-30
19301930-04-301930-11-20
19311931-05-241931-11-24
19321932-01-171932-12-03
19331933-01-101933-12-14
19341934-03-051934-11-30
19351935-01-021935-12-22
19361936-02-131936-12-30
19371937-01-021937-12-31
19381938-02-131938-12-25
19391939-01-091939-10-09
19401940-02-161940-11-26
19411941-01-011941-10-06
19421942-04-291942-10-30
19431943-01-131943-11-08
19441944-03-021944-11-29
19451945-02-151945-12-01
19461946-01-051946-12-16
19471947-01-131947-12-30
19481948-03-181948-12-15
19491949-01-231949-11-26
19501950-01-031950-11-23
19511951-02-051951-12-31
19521952-02-291952-11-25
19531953-01-131953-12-05
19541954-01-061954-11-26
19551955-01-111955-12-21
19561956-01-191956-12-16
19571957-01-211957-11-18
19581958-04-211958-12-02

Every Fixed Threshold

Fixed thresholds at Dona
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3130194316
25 mm (0.98 in): Days with 25 mm or more rain311019381
50 mm (1.97 in): Days with 50 mm or more rain7319501
10 cm (3.9 in): Days with 10 cm or more snowfall301019373
25 cm (9.8 in): Days with 25 cm or more snowfall7319563

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1928.

Download the Data

  • Data for Dona 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).