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

Medora Threshold Days by Year (USC00145180)

6 fixed thresholds counted per year at Medora (USC00145180): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Medora Thresholds

  • Medora: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1927 with 32.
  • Medora: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 1938 with 13.
  • Medora: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1929 with 3.
  • Medora: days with 10 cm (3.9 in) or more of snowfall in 2 years, most in 1932 with 4.
  • 6 fixed thresholds have at least one qualifying day at Medora.
24 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Medora Days per year at Medora with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1927. 0102030401917: 171919: 241920: 181921: 151922: 301923: 291924: 201925: 261926: 261927: 321928: 311929: 271930: 271931: 171932: 231933: 151934: 191935: 251936: 151937: 191938: 211939: 231940: 221941: 2219171921192419271930193319361939
Days per year at Medora with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1927.
Days with 10 mm (0.39 in) or more of precipitation per year at Medora
YearDaysDecade average
19171720.5
19192420.5
19201825.4
19211525.4
19223025.4
19232925.4
19242025.4
19252625.4
19262625.4
19273225.4
19283125.4
19292725.4
19302720.4
19311720.4
19322320.4
19331520.4
19341920.4
19352520.4
19361520.4
19371920.4
19382120.4
19392320.4
19402222
19412222
First to last qualifying date each year at Medora For each year, a bar from the first to the last day at Medora meeting 10 mm (0.39 in). 1917: 12 April 1917 to 27 September 19171919: 2 February 1919 to 29 November 19191920: 3 February 1920 to 21 December 19201921: 24 January 1921 to 4 December 19211922: 22 February 1922 to 12 November 19221923: 12 March 1923 to 12 November 19231924: 17 March 1924 to 24 December 19241925: 1 January 1925 to 7 November 19251926: 9 January 1926 to 8 November 19261927: 13 February 1927 to 30 October 19271928: 6 February 1928 to 28 November 19281929: 5 January 1929 to 17 November 19291930: 18 March 1930 to 30 November 19301931: 20 March 1931 to 23 November 19311932: 6 January 1932 to 23 December 19321933: 4 March 1933 to 2 December 19331934: 3 January 1934 to 21 November 19341935: 8 January 1935 to 26 November 19351936: 2 January 1936 to 30 December 19361937: 8 January 1937 to 16 November 19371938: 17 February 1938 to 3 November 19381939: 27 February 1939 to 26 December 19391940: 7 January 1940 to 25 November 19401941: 4 March 1941 to 25 December 194119171921192419271930193319361939JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Medora meeting 10 mm (0.39 in).
First to last qualifying date each year at Medora
YearFirst dateLast date
19171917-04-121917-09-27
19191919-02-021919-11-29
19201920-02-031920-12-21
19211921-01-241921-12-04
19221922-02-221922-11-12
19231923-03-121923-11-12
19241924-03-171924-12-24
19251925-01-011925-11-07
19261926-01-091926-11-08
19271927-02-131927-10-30
19281928-02-061928-11-28
19291929-01-051929-11-17
19301930-03-181930-11-30
19311931-03-201931-11-23
19321932-01-061932-12-23
19331933-03-041933-12-02
19341934-01-031934-11-21
19351935-01-081935-11-26
19361936-01-021936-12-30
19371937-01-081937-11-16
19381938-02-171938-11-03
19391939-02-271939-12-26
19401940-01-071940-11-25
19411941-03-041941-12-25

Every Fixed Threshold

Fixed thresholds at Medora
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2432192722
25 mm (0.98 in): Days with 25 mm or more rain241319387
50 mm (1.97 in): Days with 50 mm or more rain18319291
100 mm (3.94 in): Days with 100 mm or more rain1119261
10 cm (3.9 in): Days with 10 cm or more snowfall2419321
25 cm (9.8 in): Days with 25 cm or more snowfall1119411

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1917.

Download the Data

  • Data for Medora 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).