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

Siwa Threshold Days by Year (EG000062417)

12 fixed thresholds counted per year at Siwa (EG000062417): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Siwa Thresholds

  • Siwa: days with a maximum temperature at or above 30 C (86 F) in 45 years, most in 1962 with 216.
  • Siwa: days with a maximum temperature at or above 35 C (95 F) in 45 years, most in 2008 with 148.
  • Siwa: days with a maximum temperature at or above 40 C (104 F) in 45 years, most in 2008 with 41.
  • Siwa: days with a maximum temperature at or above 90 F (32.2 C) in 45 years, most in 2010 with 182.
  • 12 fixed thresholds have at least one qualifying day at Siwa.
45 years with a qualifying day
Days at or above 30 C (86 F) per year at Siwa Days per year at Siwa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 216 in 1962. 01002003001912: 1751913: 1901914: 1911921: 1671922: 1881925: 1881927: 1841929: 1921932: 1851934: 2031935: 1911936: 2091937: 1871945: 1841946: 1991947: 2131948: 1841957: 1911958: 1891960: 1931961: 1741962: 2161963: 1871964: 1891965: 1721994: 1931995: 1761996: 1821997: 1741998: 1842000: 1792001: 1832003: 1842004: 1942005: 1812006: 1922007: 1962008: 1892009: 1892010: 2062011: 1672012: 2052014: 1782016: 1862017: 154191219251935194719611994200020062011
Days per year at Siwa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 216 in 1962.
Days at or above 30 C (86 F) per year at Siwa
YearDaysDecade average
1912175185.3
1913190185.3
1914191185.3
1921167183.8
1922188183.8
1925188183.8
1927184183.8
1929192183.8
1932185195
1934203195
1935191195
1936209195
1937187195
1945184195
1946199195
1947213195
1948184195
1957191190
1958189190
1960193188.5
1961174188.5
1962216188.5
1963187188.5
1964189188.5
1965172188.5
1994193181.8
1995176181.8
1996182181.8
1997174181.8
1998184181.8
2000179187.4
2001183187.4
2003184187.4
2004194187.4
2005181187.4
2006192187.4
2007196187.4
2008189187.4
2009189187.4
2010206182.7
2011167182.7
2012205182.7
2014178182.7
2016186182.7
2017154182.7
First to last qualifying date each year at Siwa For each year, a bar from the first to the last day at Siwa meeting 30 C (86 F). 1912: 11 April 1912 to 21 November 19121913: 22 March 1913 to 9 November 19131914: 18 January 1914 to 26 November 19141921: 9 March 1921 to 31 October 19211922: 24 March 1922 to 5 November 19221925: 17 March 1925 to 30 November 19251927: 12 March 1927 to 17 November 19271929: 6 February 1929 to 15 November 19291932: 21 February 1932 to 2 November 19321934: 3 March 1934 to 16 November 19341935: 10 February 1935 to 28 October 19351936: 27 February 1936 to 31 December 19361937: 1 March 1937 to 5 November 19371945: 17 January 1945 to 14 November 19451946: 8 March 1946 to 23 November 19461947: 26 February 1947 to 30 November 19471948: 24 February 1948 to 13 November 19481957: 19 March 1957 to 16 December 19571958: 20 February 1958 to 16 November 19581960: 16 February 1960 to 9 November 19601961: 22 March 1961 to 13 November 19611962: 2 March 1962 to 23 November 19621963: 18 February 1963 to 30 October 19631964: 26 February 1964 to 4 December 19641965: 27 February 1965 to 22 October 19651994: 28 March 1994 to 27 October 19941995: 14 March 1995 to 5 November 19951996: 5 March 1996 to 12 November 19961997: 18 April 1997 to 26 October 19971998: 5 February 1998 to 6 December 19982000: 17 March 2000 to 4 November 20002001: 26 February 2001 to 24 October 20012003: 17 February 2003 to 3 November 20032004: 24 February 2004 to 15 November 20042005: 28 January 2005 to 27 November 20052006: 28 February 2006 to 26 October 20062007: 10 March 2007 to 5 December 20072008: 6 March 2008 to 26 November 20082009: 4 March 2009 to 10 November 20092010: 10 January 2010 to 26 November 20102011: 18 February 2011 to 26 October 20112012: 31 March 2012 to 7 November 20122014: 21 February 2014 to 21 November 20142016: 18 February 2016 to 9 November 20162017: 28 March 2017 to 19 October 201719121927193719581965200020072014JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Siwa meeting 30 C (86 F).
First to last qualifying date each year at Siwa
YearFirst dateLast date
19121912-04-111912-11-21
19131913-03-221913-11-09
19141914-01-181914-11-26
19211921-03-091921-10-31
19221922-03-241922-11-05
19251925-03-171925-11-30
19271927-03-121927-11-17
19291929-02-061929-11-15
19321932-02-211932-11-02
19341934-03-031934-11-16
19351935-02-101935-10-28
19361936-02-271936-12-31
19371937-03-011937-11-05
19451945-01-171945-11-14
19461946-03-081946-11-23
19471947-02-261947-11-30
19481948-02-241948-11-13
19571957-03-191957-12-16
19581958-02-201958-11-16
19601960-02-161960-11-09
19611961-03-221961-11-13
19621962-03-021962-11-23
19631963-02-181963-10-30
19641964-02-261964-12-04
19651965-02-271965-10-22
19941994-03-281994-10-27
19951995-03-141995-11-05
19961996-03-051996-11-12
19971997-04-181997-10-26
19981998-02-051998-12-06
20002000-03-172000-11-04
20012001-02-262001-10-24
20032003-02-172003-11-03
20042004-02-242004-11-15
20052005-01-282005-11-27
20062006-02-282006-10-26
20072007-03-102007-12-05
20082008-03-062008-11-26
20092009-03-042009-11-10
20102010-01-102010-11-26
20112011-02-182011-10-26
20122012-03-312012-11-07
20142014-02-212014-11-21
20162016-02-182016-11-09
20172017-03-282017-10-19

Every Fixed Threshold

Fixed thresholds at Siwa
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days452161962154
35 C (95 F): Days451482008105
40 C (104 F): Days4541200822
45 C (113 F): Days24719951
90 F (32.2 C): Days451822010142
100 F (37.8 C): Days4592200848
110 F (43.3 C): Days431219952
0 C (32 F): Frost days (min211119352
20 C (68 F): Tropical nights (min3613919981
25 C (77 F): Days with min3024199520
10 mm (0.39 in): Days with 10 mm or more rain6219451
25 mm (0.98 in): Days with 25 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

  • Data for Siwa 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).