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

Loomis Threshold Days by Year (USC00454782)

10 fixed thresholds counted per year at Loomis (USC00454782): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Loomis Thresholds

  • Loomis: days with a maximum temperature at or above 30 C (86 F) in 5 years, most in 1904 with 53.
  • Loomis: days with a maximum temperature at or above 35 C (95 F) in 5 years, most in 1905 with 17.
  • Loomis: days with a maximum temperature at or above 90 F (32.2 C) in 5 years, most in 1904 with 35.
  • Loomis: days with a maximum temperature at or below 0 C (32 F) in 5 years, most in 1898 with 56.
  • 10 fixed thresholds have at least one qualifying day at Loomis.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Loomis Days per year at Loomis with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 53 in 1904. 02040601897: 511898: 491903: 331904: 531905: 3918971898190319041905
Days per year at Loomis with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 53 in 1904.
Days at or above 30 C (86 F) per year at Loomis
YearDaysDecade average
18975150
18984950
19033341.7
19045341.7
19053941.7
First to last qualifying date each year at Loomis For each year, a bar from the first to the last day at Loomis meeting 30 C (86 F). 1897: 12 May 1897 to 21 September 18971898: 7 June 1898 to 11 September 18981903: 30 May 1903 to 19 August 19031904: 15 June 1904 to 16 September 19041905: 2 July 1905 to 23 August 190518971898190319041905JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Loomis meeting 30 C (86 F).
First to last qualifying date each year at Loomis
YearFirst dateLast date
18971897-05-121897-09-21
18981898-06-071898-09-11
19031903-05-301903-08-19
19041904-06-151904-09-16
19051905-07-021905-08-23

Every Fixed Threshold

Fixed thresholds at Loomis
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days553190439
35 C (95 F): Days517190517
90 F (32.2 C): Days535190424
100 F (37.8 C): Days4718985
0 C (32 F): Ice days (max556189836
0 C (32 F): Frost days (min51411897132
-10 C (14 F): Days with min529190321
20 C (68 F): Tropical nights (min41318985
10 mm (0.39 in): Days with 10 mm or more rain316190314
25 mm (0.98 in): Days with 25 mm or more rain1219032

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.

Download the Data

  • Data for Loomis 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).