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

Mount Hope Threshold Days by Year (USC00305540)

18 fixed thresholds counted per year at Mount Hope (USC00305540): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mount Hope Thresholds

  • Mount Hope: nights with a minimum temperature at or below 0 C (32 F) in 30 years, most in 1904 with 160.
  • Mount Hope: nights with a minimum temperature at or below -10 C (14 F) in 30 years, most in 1904 with 50.
  • Mount Hope: nights with a minimum temperature at or above 20 C (68 F) in 30 years, most in 1901 with 26.
  • Mount Hope: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 1900 with 55.
  • 18 fixed thresholds have at least one qualifying day at Mount Hope.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Mount Hope Days per year at Mount Hope with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 1900. 02040601897: 331898: 461899: 371900: 551901: 431902: 291903: 261904: 221905: 251906: 391907: 301908: 391909: 311912: 301913: 441914: 401915: 341917: 181918: 231919: 181920: 71921: 161922: 151923: 241924: 151925: 241926: 141927: 101928: 121897190019031906190919141918192119241927
Days per year at Mount Hope with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 1900.
Days at or above 30 C (86 F) per year at Mount Hope
YearDaysDecade average
18973338.7
18984638.7
18993738.7
19005533.9
19014333.9
19022933.9
19032633.9
19042233.9
19052533.9
19063933.9
19073033.9
19083933.9
19093133.9
19123029.6
19134429.6
19144029.6
19153429.6
19171829.6
19182329.6
19191829.6
1920715.2
19211615.2
19221515.2
19232415.2
19241515.2
19252415.2
19261415.2
19271015.2
19281215.2
First to last qualifying date each year at Mount Hope For each year, a bar from the first to the last day at Mount Hope meeting 30 C (86 F). 1897: 10 May 1897 to 16 October 18971898: 20 May 1898 to 7 September 18981899: 2 May 1899 to 8 September 18991900: 13 May 1900 to 12 September 19001901: 6 June 1901 to 7 September 19011902: 22 April 1902 to 1 September 19021903: 29 April 1903 to 15 September 19031904: 24 May 1904 to 17 August 19041905: 3 May 1905 to 30 September 19051906: 13 May 1906 to 21 September 19061907: 14 May 1907 to 20 August 19071908: 13 May 1908 to 17 October 19081909: 21 June 1909 to 29 August 19091912: 21 May 1912 to 26 August 19121913: 2 May 1913 to 31 August 19131914: 20 May 1914 to 23 September 19141915: 25 April 1915 to 18 September 19151917: 2 July 1917 to 29 August 19171918: 6 May 1918 to 24 August 19181919: 5 May 1919 to 3 October 19191920: 11 June 1920 to 24 September 19201921: 22 May 1921 to 29 September 19211922: 10 April 1922 to 5 October 19221923: 21 April 1923 to 3 September 19231924: 25 June 1924 to 2 September 19241925: 23 May 1925 to 14 September 19251926: 30 June 1926 to 25 September 19261927: 20 April 1927 to 2 October 19271928: 4 July 1928 to 30 August 192818971901190519091915192019241928JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mount Hope meeting 30 C (86 F).
First to last qualifying date each year at Mount Hope
YearFirst dateLast date
18971897-05-101897-10-16
18981898-05-201898-09-07
18991899-05-021899-09-08
19001900-05-131900-09-12
19011901-06-061901-09-07
19021902-04-221902-09-01
19031903-04-291903-09-15
19041904-05-241904-08-17
19051905-05-031905-09-30
19061906-05-131906-09-21
19071907-05-141907-08-20
19081908-05-131908-10-17
19091909-06-211909-08-29
19121912-05-211912-08-26
19131913-05-021913-08-31
19141914-05-201914-09-23
19151915-04-251915-09-18
19171917-07-021917-08-29
19181918-05-061918-08-24
19191919-05-051919-10-03
19201920-06-111920-09-24
19211921-05-221921-09-29
19221922-04-101922-10-05
19231923-04-211923-09-03
19241924-06-251924-09-02
19251925-05-231925-09-14
19261926-06-301926-09-25
19271927-04-201927-10-02
19281928-07-041928-08-30

Every Fixed Threshold

Fixed thresholds at Mount Hope
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2955190012
35 C (95 F): Days23819001
40 C (104 F): Days1119011
90 F (32.2 C): Days282819005
100 F (37.8 C): Days3319002
0 C (32 F): Ice days (max2951190418
0 C (32 F): Frost days (min301601904129
-10 C (14 F): Days with min3050190418
-20 C (-4 F): Days with min17819071
20 C (68 F): Tropical nights (min3026190113
25 C (77 F): Days with min2119171
10 mm (0.39 in): Days with 10 mm or more rain2759191347
25 mm (0.98 in): Days with 25 mm or more rain2723191323
50 mm (1.97 in): Days with 50 mm or more rain24518974
100 mm (3.94 in): Days with 100 mm or more rain1119031
200 mm (7.87 in): Days with 200 mm or more rain1119031
10 cm (3.9 in): Days with 10 cm or more snowfall2419264
25 cm (9.8 in): Days with 25 cm or more snowfall2219262

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

  • Data for Mount Hope 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).