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Built 2026-10-19 (19 October 2026)

Cairo Threshold Days by Year (USC00251390)

7 fixed thresholds counted per year at Cairo (USC00251390): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cairo Thresholds

  • Cairo: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1930 with 29.
  • Cairo: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1930 with 12.
  • Cairo: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1914 with 4.
  • Cairo: days with 10 cm (3.9 in) or more of snowfall in 12 years, most in 1924 with 4.
  • 7 fixed thresholds have at least one qualifying day at Cairo.
26 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Cairo Days per year at Cairo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1930. 01020301910: 151911: 191912: 221913: 281914: 211918: 201919: 231920: 271921: 211922: 161923: 241924: 191925: 221926: 151927: 211928: 151929: 171930: 291931: 211937: 181938: 201939: 151940: 121941: 181942: 201945: 22191019131919192219251928193119391942
Days per year at Cairo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1930.
Days with 10 mm (0.39 in) or more of precipitation per year at Cairo
YearDaysDecade average
19101521.1
19111921.1
19122221.1
19132821.1
19142121.1
19182021.1
19192321.1
19202719.7
19212119.7
19221619.7
19232419.7
19241919.7
19252219.7
19261519.7
19272119.7
19281519.7
19291719.7
19302920.6
19312120.6
19371820.6
19382020.6
19391520.6
19401218
19411818
19422018
19452218
First to last qualifying date each year at Cairo For each year, a bar from the first to the last day at Cairo meeting 10 mm (0.39 in). 1910: 2 May 1910 to 22 December 19101911: 16 February 1911 to 20 December 19111912: 16 January 1912 to 13 November 19121913: 21 February 1913 to 20 December 19131914: 28 March 1914 to 20 December 19141918: 10 January 1918 to 20 December 19181919: 2 February 1919 to 28 November 19191920: 23 March 1920 to 22 December 19201921: 26 January 1921 to 19 September 19211922: 19 March 1922 to 13 November 19221923: 20 April 1923 to 12 November 19231924: 17 March 1924 to 7 December 19241925: 22 February 1925 to 15 December 19251926: 31 January 1926 to 14 November 19261927: 14 February 1927 to 26 September 19271928: 7 February 1928 to 30 November 19281929: 20 April 1929 to 10 November 19291930: 13 April 1930 to 20 November 19301931: 22 February 1931 to 31 December 19311937: 20 March 1937 to 16 October 19371938: 14 February 1938 to 13 September 19381939: 24 February 1939 to 7 August 19391940: 3 February 1940 to 16 December 19401941: 2 April 1941 to 25 December 19411942: 25 March 1942 to 26 December 19421945: 2 March 1945 to 24 December 19451910191419211925192919381942JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Cairo meeting 10 mm (0.39 in).
First to last qualifying date each year at Cairo
YearFirst dateLast date
19101910-05-021910-12-22
19111911-02-161911-12-20
19121912-01-161912-11-13
19131913-02-211913-12-20
19141914-03-281914-12-20
19181918-01-101918-12-20
19191919-02-021919-11-28
19201920-03-231920-12-22
19211921-01-261921-09-19
19221922-03-191922-11-13
19231923-04-201923-11-12
19241924-03-171924-12-07
19251925-02-221925-12-15
19261926-01-311926-11-14
19271927-02-141927-09-26
19281928-02-071928-11-30
19291929-04-201929-11-10
19301930-04-131930-11-20
19311931-02-221931-12-31
19371937-03-201937-10-16
19381938-02-141938-09-13
19391939-02-241939-08-07
19401940-02-031940-12-16
19411941-04-021941-12-25
19421942-03-251942-12-26
19451945-03-021945-12-24

Every Fixed Threshold

Fixed thresholds at Cairo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2629193022
25 mm (0.98 in): Days with 25 mm or more rain261219305
50 mm (1.97 in): Days with 50 mm or more rain15419141
100 mm (3.94 in): Days with 100 mm or more rain5219231
10 cm (3.9 in): Days with 10 cm or more snowfall12419242
25 cm (9.8 in): Days with 25 cm or more snowfall4219201
50 cm (19.7 in): Days with 50 cm or more snowfall1119241

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

  • Data for Cairo 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).