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

Edison Threshold Days by Year (USC00252560)

18 fixed thresholds counted per year at Edison (USC00252560): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Edison Thresholds

  • Edison: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 2006 with 26.
  • Edison: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 2008 with 11.
  • Edison: days with a maximum temperature at or above 30 C (86 F) in 15 years, most in 2012 with 98.
  • Edison: days with a maximum temperature at or above 35 C (95 F) in 15 years, most in 2012 with 48.
  • 18 fixed thresholds have at least one qualifying day at Edison.
15 years with a qualifying day
Days at or above 30 C (86 F) per year at Edison Days per year at Edison with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 98 in 2012. 02550751002011: 732012: 982013: 802014: 662015: 762016: 732017: 752018: 852019: 712020: 882021: 792022: 952023: 722024: 802025: 7920112013201520172019202120232025
Days per year at Edison with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 98 in 2012.
Days at or above 30 C (86 F) per year at Edison
YearDaysDecade average
20117377.4
20129877.4
20138077.4
20146677.4
20157677.4
20167377.4
20177577.4
20188577.4
20197177.4
20208882.2
20217982.2
20229582.2
20237282.2
20248082.2
20257982.2
First to last qualifying date each year at Edison For each year, a bar from the first to the last day at Edison meeting 30 C (86 F). 2011: 3 April 2011 to 5 October 20112012: 18 March 2012 to 4 October 20122013: 29 April 2013 to 27 September 20132014: 10 April 2014 to 25 October 20142015: 16 March 2015 to 19 October 20152016: 4 June 2016 to 28 September 20162017: 17 March 2017 to 24 September 20172018: 6 May 2018 to 4 October 20182019: 21 April 2019 to 1 October 20192020: 2 May 2020 to 12 October 20202021: 5 April 2021 to 9 October 20212022: 13 April 2022 to 24 October 20222023: 12 April 2023 to 24 October 20232024: 14 April 2024 to 11 October 20242025: 29 March 2025 to 12 October 202520112013201520172019202120232025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Edison meeting 30 C (86 F).
First to last qualifying date each year at Edison
YearFirst dateLast date
20112011-04-032011-10-05
20122012-03-182012-10-04
20132013-04-292013-09-27
20142014-04-102014-10-25
20152015-03-162015-10-19
20162016-06-042016-09-28
20172017-03-172017-09-24
20182018-05-062018-10-04
20192019-04-212019-10-01
20202020-05-022020-10-12
20212021-04-052021-10-09
20222022-04-132022-10-24
20232023-04-122023-10-24
20242024-04-142024-10-11
20252025-03-292025-10-12

Every Fixed Threshold

Fixed thresholds at Edison
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1598201279
35 C (95 F): Days1548201220
40 C (104 F): Days9620131
90 F (32.2 C): Days1580201249
100 F (37.8 C): Days131920126
110 F (43.3 C): Days2120121
0 C (32 F): Ice days (max1542201429
0 C (32 F): Frost days (min151852013172
-10 C (14 F): Days with min1568202259
-20 C (-4 F): Days with min1016202516
-30 C (-22 F): Days with min2420254
20 C (68 F): Tropical nights (min141520136
25 C (77 F): Days with min1220252
10 mm (0.39 in): Days with 10 mm or more rain2426200615
25 mm (0.98 in): Days with 25 mm or more rain241120082
50 mm (1.97 in): Days with 50 mm or more rain13220062
100 mm (3.94 in): Days with 100 mm or more rain3120071
10 cm (3.9 in): Days with 10 cm or more snowfall14320131

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2011.

Download the Data

  • Data for Edison 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).