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Built 2026-10-19 (19 October 2026)

Okolona Threshold Days by Year (USC00226515)

18 fixed thresholds counted per year at Okolona (USC00226515): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Okolona Thresholds

  • Okolona: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1974 with 62.
  • Okolona: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1974 with 30.
  • Okolona: days with 50 mm (1.97 in) or more of precipitation in 64 years, most in 1950 with 10.
  • Okolona: days with a maximum temperature at or above 30 C (86 F) in 30 years, most in 1921 with 158.
  • 18 fixed thresholds have at least one qualifying day at Okolona.
30 years with a qualifying day
Days at or above 30 C (86 F) per year at Okolona Days per year at Okolona with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 158 in 1921. 0501001502001895: 1281897: 1381898: 1461899: 1331900: 1281901: 1061902: 1311903: 1091904: 1371905: 1291907: 1101908: 1171909: 1101910: 1191911: 1281912: 1281913: 1121914: 1241915: 1171916: 1151917: 981918: 1301919: 1351920: 1331921: 1581922: 1461923: 1031924: 1421925: 1511926: 1381895189919021905190919121915191819211924
Days per year at Okolona with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 158 in 1921.
Days at or above 30 C (86 F) per year at Okolona
YearDaysDecade average
1895128136.3
1897138136.3
1898146136.3
1899133136.3
1900128119.7
1901106119.7
1902131119.7
1903109119.7
1904137119.7
1905129119.7
1907110119.7
1908117119.7
1909110119.7
1910119120.6
1911128120.6
1912128120.6
1913112120.6
1914124120.6
1915117120.6
1916115120.6
191798120.6
1918130120.6
1919135120.6
1920133138.7
1921158138.7
1922146138.7
1923103138.7
1924142138.7
1925151138.7
1926138138.7
First to last qualifying date each year at Okolona For each year, a bar from the first to the last day at Okolona meeting 30 C (86 F). 1895: 31 March 1895 to 7 October 18951897: 28 April 1897 to 22 October 18971898: 19 March 1898 to 11 October 18981899: 21 April 1899 to 26 October 18991900: 15 March 1900 to 6 October 19001901: 29 April 1901 to 23 September 19011902: 21 April 1902 to 27 October 19021903: 10 April 1903 to 23 October 19031904: 28 February 1904 to 11 October 19041905: 10 April 1905 to 7 October 19051907: 21 March 1907 to 7 October 19071908: 19 March 1908 to 21 October 19081909: 8 May 1909 to 6 November 19091910: 25 March 1910 to 20 October 19101911: 12 March 1911 to 16 October 19111912: 3 May 1912 to 13 October 19121913: 19 April 1913 to 11 October 19131914: 17 April 1914 to 14 October 19141915: 18 April 1915 to 18 October 19151916: 17 April 1916 to 30 October 19161917: 19 April 1917 to 6 October 19171918: 10 March 1918 to 10 October 19181919: 22 April 1919 to 31 October 19191920: 4 May 1920 to 22 October 19201921: 15 March 1921 to 26 October 19211922: 6 April 1922 to 3 November 19221923: 20 May 1923 to 14 October 19231924: 16 April 1924 to 7 November 19241925: 12 April 1925 to 16 October 19251926: 23 April 1926 to 19 October 192618951900190419091913191719211925JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Okolona meeting 30 C (86 F).
First to last qualifying date each year at Okolona
YearFirst dateLast date
18951895-03-311895-10-07
18971897-04-281897-10-22
18981898-03-191898-10-11
18991899-04-211899-10-26
19001900-03-151900-10-06
19011901-04-291901-09-23
19021902-04-211902-10-27
19031903-04-101903-10-23
19041904-02-281904-10-11
19051905-04-101905-10-07
19071907-03-211907-10-07
19081908-03-191908-10-21
19091909-05-081909-11-06
19101910-03-251910-10-20
19111911-03-121911-10-16
19121912-05-031912-10-13
19131913-04-191913-10-11
19141914-04-171914-10-14
19151915-04-181915-10-18
19161916-04-171916-10-30
19171917-04-191917-10-06
19181918-03-101918-10-10
19191919-04-221919-10-31
19201920-05-041920-10-22
19211921-03-151921-10-26
19221922-04-061922-11-03
19231923-05-201923-10-14
19241924-04-161924-11-07
19251925-04-121925-10-16
19261926-04-231926-10-19

Every Fixed Threshold

Fixed thresholds at Okolona
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days301581921138
35 C (95 F): Days3090192565
40 C (104 F): Days1016192516
90 F (32.2 C): Days301321925114
100 F (37.8 C): Days245319256
110 F (43.3 C): Days1319253
0 C (32 F): Ice days (max251019051
0 C (32 F): Frost days (min2880191475
-10 C (14 F): Days with min221219171
-20 C (-4 F): Days with min1119181
20 C (68 F): Tropical nights (min28108190556
25 C (77 F): Days with min131619021
10 mm (0.39 in): Days with 10 mm or more rain6462197435
25 mm (0.98 in): Days with 25 mm or more rain6430197417
50 mm (1.97 in): Days with 50 mm or more rain641019502
100 mm (3.94 in): Days with 100 mm or more rain15219111
200 mm (7.87 in): Days with 200 mm or more rain1119511
10 cm (3.9 in): Days with 10 cm or more snowfall11219671

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 Okolona 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).