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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Brownlee Threshold Days by Year

17 fixed thresholds counted per year at Brownlee (USC00251213): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brownlee Thresholds

  • Brownlee: days with 10 cm (3.9 in) or more of snowfall in 21 years, most in 1983 with 8.
  • Brownlee: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1983 with 21.
  • Brownlee: days with 25 mm (0.98 in) or more of precipitation in 18 years, most in 1983 with 5.
  • Brownlee: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1985 with 2.
  • 17 fixed thresholds have at least one qualifying day at Brownlee.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Brownlee Days per year at Brownlee with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 1983. 0204060801976: 551983: 621984: 561985: 531986: 401989: 42197619831984198519861989
Days per year at Brownlee with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 62 in 1983.
Days at or above 30 C (86 F) per year at Brownlee
YearDaysDecade average
19765555
19836250.6
19845650.6
19855350.6
19864050.6
19894250.6
First to last qualifying date each year at Brownlee For each year, a bar from the first to the last day at Brownlee meeting 30 C (86 F). 1976: 20 May 1976 to 3 October 19761983: 27 May 1983 to 28 September 19831984: 1 June 1984 to 22 September 19841985: 16 April 1985 to 19 September 19851986: 24 April 1986 to 11 September 19861989: 22 April 1989 to 1 October 1989197619831984198519861989JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Brownlee meeting 30 C (86 F).
First to last qualifying date each year at Brownlee
YearFirst dateLast date
19761976-05-201976-10-03
19831983-05-271983-09-28
19841984-06-011984-09-22
19851985-04-161985-09-19
19861986-04-241986-09-11
19891989-04-221989-10-01

Every Fixed Threshold

Fixed thresholds at Brownlee
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days662198342
35 C (95 F): Days61619844
40 C (104 F): Days1119851
90 F (32.2 C): Days643198326
100 F (37.8 C): Days6319852
0 C (32 F): Ice days (max658198539
0 C (32 F): Frost days (min61901989190
-10 C (14 F): Days with min679198979
-20 C (-4 F): Days with min627198526
-30 C (-22 F): Days with min5619835
20 C (68 F): Tropical nights (min4319861
10 mm (0.39 in): Days with 10 mm or more rain1921198316
25 mm (0.98 in): Days with 25 mm or more rain18519835
50 mm (1.97 in): Days with 50 mm or more rain7219852
100 mm (3.94 in): Days with 100 mm or more rain10n/a1
10 cm (3.9 in): Days with 10 cm or more snowfall21819834
25 cm (9.8 in): Days with 25 cm or more snowfall4119842

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.

Download the Data

  • Data for Brownlee 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).