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Built 2026-10-19 (19 October 2026)

Old Mission Threshold Days by Year (USC00206156)

16 fixed thresholds counted per year at Old Mission (USC00206156): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Old Mission Thresholds

  • Old Mission: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1911 with 38.
  • Old Mission: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1898 with 13.
  • Old Mission: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1895 with 41.
  • Old Mission: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 1904 with 96.
  • 16 fixed thresholds have at least one qualifying day at Old Mission.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at Old Mission Days per year at Old Mission with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 41 in 1895. 02040601895: 411896: 301897: 181898: 201899: 191900: 191901: 231903: 61904: 41905: 61906: 211907: 41908: 191909: 171910: 231911: 171912: 111913: 211914: 151915: 41916: 301917: 101918: 141919: 411920: 31921: 401922: 101923: 111924: 41925: 171926: 61927: 111928: 91929: 191930: 25189518991904190819121916192019241928
Days per year at Old Mission with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 41 in 1895.
Days at or above 30 C (86 F) per year at Old Mission
YearDaysDecade average
18954125.6
18963025.6
18971825.6
18982025.6
18991925.6
19001913.2
19012313.2
1903613.2
1904413.2
1905613.2
19062113.2
1907413.2
19081913.2
19091713.2
19102318.6
19111718.6
19121118.6
19132118.6
19141518.6
1915418.6
19163018.6
19171018.6
19181418.6
19194118.6
1920313
19214013
19221013
19231113
1924413
19251713
1926613
19271113
1928913
19291913
19302525
First to last qualifying date each year at Old Mission For each year, a bar from the first to the last day at Old Mission meeting 30 C (86 F). 1895: 4 May 1895 to 23 September 18951896: 7 May 1896 to 12 August 18961897: 13 June 1897 to 15 September 18971898: 4 June 1898 to 29 September 18981899: 29 April 1899 to 16 September 18991900: 13 May 1900 to 6 October 19001901: 5 June 1901 to 21 August 19011903: 4 July 1903 to 12 September 19031904: 24 June 1904 to 18 July 19041905: 16 June 1905 to 29 September 19051906: 28 June 1906 to 11 September 19061907: 17 June 1907 to 15 August 19071908: 25 May 1908 to 26 September 19081909: 21 June 1909 to 13 September 19091910: 17 June 1910 to 22 August 19101911: 27 May 1911 to 31 July 19111912: 25 June 1912 to 9 September 19121913: 14 June 1913 to 7 September 19131914: 7 June 1914 to 21 September 19141915: 6 June 1915 to 30 July 19151916: 6 July 1916 to 21 August 19161917: 22 July 1917 to 1 August 19171918: 31 May 1918 to 13 August 19181919: 29 May 1919 to 8 September 19191920: 10 June 1920 to 13 July 19201921: 20 May 1921 to 2 September 19211922: 7 June 1922 to 5 September 19221923: 20 June 1923 to 11 August 19231924: 21 July 1924 to 30 August 19241925: 1 June 1925 to 4 September 19251926: 8 July 1926 to 28 August 19261927: 28 June 1927 to 14 September 19271928: 2 July 1928 to 16 August 19281929: 16 May 1929 to 5 September 19291930: 6 May 1930 to 12 September 19301895190019061911191619211926JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Old Mission meeting 30 C (86 F).
First to last qualifying date each year at Old Mission
YearFirst dateLast date
18951895-05-041895-09-23
18961896-05-071896-08-12
18971897-06-131897-09-15
18981898-06-041898-09-29
18991899-04-291899-09-16
19001900-05-131900-10-06
19011901-06-051901-08-21
19031903-07-041903-09-12
19041904-06-241904-07-18
19051905-06-161905-09-29
19061906-06-281906-09-11
19071907-06-171907-08-15
19081908-05-251908-09-26
19091909-06-211909-09-13
19101910-06-171910-08-22
19111911-05-271911-07-31
19121912-06-251912-09-09
19131913-06-141913-09-07
19141914-06-071914-09-21
19151915-06-061915-07-30
19161916-07-061916-08-21
19171917-07-221917-08-01
19181918-05-311918-08-13
19191919-05-291919-09-08
19201920-06-101920-07-13
19211921-05-201921-09-02
19221922-06-071922-09-05
19231923-06-201923-08-11
19241924-07-211924-08-30
19251925-06-011925-09-04
19261926-07-081926-08-28
19271927-06-281927-09-14
19281928-07-021928-08-16
19291929-05-161929-09-05
19301930-05-061930-09-12

Every Fixed Threshold

Fixed thresholds at Old Mission
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3541189525
35 C (95 F): Days15719161
90 F (32.2 C): Days3219191912
100 F (37.8 C): Days2219162
0 C (32 F): Ice days (max3596190451
0 C (32 F): Frost days (min331911917142
-10 C (14 F): Days with min3384191256
-20 C (-4 F): Days with min252119122
-30 C (-22 F): Days with min3118991
20 C (68 F): Tropical nights (min301219009
25 C (77 F): Days with min2119271
10 mm (0.39 in): Days with 10 mm or more rain3738191114
25 mm (0.98 in): Days with 25 mm or more rain371318982
50 mm (1.97 in): Days with 50 mm or more rain13218961
10 cm (3.9 in): Days with 10 cm or more snowfall20919013
25 cm (9.8 in): Days with 25 cm or more snowfall4118991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

Download the Data

  • Data for Old Mission 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).