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

Brentwood Threshold Days by Year (USC00300862)

12 fixed thresholds counted per year at Brentwood (USC00300862): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brentwood Thresholds

  • Brentwood: nights with a minimum temperature at or below 0 C (32 F) in 5 years, most in 1895 with 147.
  • Brentwood: nights with a minimum temperature at or below -10 C (14 F) in 5 years, most in 1895 with 34.
  • Brentwood: nights with a minimum temperature at or above 20 C (68 F) in 5 years, most in 1898 with 23.
  • Brentwood: days with 10 mm (0.39 in) or more of precipitation in 5 years, most in 1898 with 62.
  • 12 fixed thresholds have at least one qualifying day at Brentwood.
3 years with a qualifying day
Days at or above 30 C (86 F) per year at Brentwood Days per year at Brentwood with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 1898. 02040601895: 321897: 201898: 42189518971898
Days per year at Brentwood with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 1898.
Days at or above 30 C (86 F) per year at Brentwood
YearDaysDecade average
18953231.3
18972031.3
18984231.3
First to last qualifying date each year at Brentwood For each year, a bar from the first to the last day at Brentwood meeting 30 C (86 F). 1895: 10 May 1895 to 26 September 18951897: 25 June 1897 to 16 October 18971898: 20 May 1898 to 19 September 1898189518971898JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Brentwood meeting 30 C (86 F).
First to last qualifying date each year at Brentwood
YearFirst dateLast date
18951895-05-101895-09-26
18971897-06-251897-10-16
18981898-05-201898-09-19

Every Fixed Threshold

Fixed thresholds at Brentwood
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days342189842
35 C (95 F): Days2318951
90 F (32.2 C): Days320189820
100 F (37.8 C): Days1118981
0 C (32 F): Ice days (max330189512
0 C (32 F): Frost days (min51471895142
-10 C (14 F): Days with min534189528
-20 C (-4 F): Days with min4318984
20 C (68 F): Tropical nights (min523189815
10 mm (0.39 in): Days with 10 mm or more rain562189838
25 mm (0.98 in): Days with 25 mm or more rain52718987
50 mm (1.97 in): Days with 50 mm or more rain4818981

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

Download the Data

  • Data for Brentwood 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).