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Built 2026-10-19 (19 October 2026)

Chandler Threshold Days by Year (USC00021511)

15 fixed thresholds counted per year at Chandler (USC00021511): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chandler Thresholds

  • Chandler: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1978 with 15.
  • Chandler: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1931 with 4.
  • Chandler: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 1931 with 196.
  • Chandler: days with a maximum temperature at or above 35 C (95 F) in 24 years, most in 1922 with 150.
  • 15 fixed thresholds have at least one qualifying day at Chandler.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Chandler Days per year at Chandler with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 196 in 1931. 0501001502001913: 1881915: 1761916: 1821917: 1721918: 1801919: 1621920: 1651921: 1901922: 1851923: 1621924: 1861925: 1771926: 1851927: 1701930: 1711931: 1961932: 1691933: 1721973: 1851974: 1871975: 1691976: 1761977: 1841978: 18219131917192019231926193119731976
Days per year at Chandler with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 196 in 1931.
Days at or above 30 C (86 F) per year at Chandler
YearDaysDecade average
1913188176.7
1915176176.7
1916182176.7
1917172176.7
1918180176.7
1919162176.7
1920165177.5
1921190177.5
1922185177.5
1923162177.5
1924186177.5
1925177177.5
1926185177.5
1927170177.5
1930171177
1931196177
1932169177
1933172177
1973185180.5
1974187180.5
1975169180.5
1976176180.5
1977184180.5
1978182180.5
First to last qualifying date each year at Chandler For each year, a bar from the first to the last day at Chandler meeting 30 C (86 F). 1913: 30 March 1913 to 10 November 19131915: 24 March 1915 to 5 November 19151916: 9 March 1916 to 2 November 19161917: 28 March 1917 to 5 November 19171918: 31 March 1918 to 12 November 19181919: 31 March 1919 to 19 October 19191920: 6 April 1920 to 28 October 19201921: 24 February 1921 to 5 November 19211922: 19 April 1922 to 26 October 19221923: 12 April 1923 to 22 October 19231924: 5 April 1924 to 22 November 19241925: 3 February 1925 to 19 November 19251926: 13 March 1926 to 4 November 19261927: 23 March 1927 to 23 October 19271930: 18 February 1930 to 6 November 19301931: 21 March 1931 to 6 November 19311932: 1 April 1932 to 4 November 19321933: 1 April 1933 to 20 November 19331973: 11 April 1973 to 6 November 19731974: 17 March 1974 to 27 October 19741975: 21 April 1975 to 6 November 19751976: 23 March 1976 to 8 November 19761977: 20 February 1977 to 5 November 19771978: 18 March 1978 to 8 November 197819131917192019231926193119731976JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chandler meeting 30 C (86 F).
First to last qualifying date each year at Chandler
YearFirst dateLast date
19131913-03-301913-11-10
19151915-03-241915-11-05
19161916-03-091916-11-02
19171917-03-281917-11-05
19181918-03-311918-11-12
19191919-03-311919-10-19
19201920-04-061920-10-28
19211921-02-241921-11-05
19221922-04-191922-10-26
19231923-04-121923-10-22
19241924-04-051924-11-22
19251925-02-031925-11-19
19261926-03-131926-11-04
19271927-03-231927-10-23
19301930-02-181930-11-06
19311931-03-211931-11-06
19321932-04-011932-11-04
19331933-04-011933-11-20
19731973-04-111973-11-06
19741974-03-171974-10-27
19751975-04-211975-11-06
19761976-03-231976-11-08
19771977-02-201977-11-05
19781978-03-181978-11-08

Every Fixed Threshold

Fixed thresholds at Chandler
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days241961931182
35 C (95 F): Days241501922143
40 C (104 F): Days2476192250
45 C (113 F): Days16719333
90 F (32.2 C): Days241741931162
100 F (37.8 C): Days241171922106
110 F (43.3 C): Days242319336
120 F (48.9 C): Days1119251
0 C (32 F): Frost days (min2267192430
-10 C (14 F): Days with min2319131
20 C (68 F): Tropical nights (min22101193351
25 C (77 F): Days with min224819336
10 mm (0.39 in): Days with 10 mm or more rain421519787
25 mm (0.98 in): Days with 25 mm or more rain27419312
50 mm (1.97 in): Days with 50 mm or more rain2119151

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

  • Data for Chandler 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).