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

Bluff City 3 SW Threshold Days by Year (USC00030800)

15 fixed thresholds counted per year at Bluff City 3 SW (USC00030800): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bluff City 3 SW Thresholds

  • Bluff City 3 SW: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1957 with 60.
  • Bluff City 3 SW: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 1957 with 26.
  • Bluff City 3 SW: days with 50 mm (1.97 in) or more of precipitation in 54 years, most in 1991 with 11.
  • Bluff City 3 SW: days with 100 mm (3.94 in) or more of precipitation in 20 years, most in 1987 with 3.
  • 15 fixed thresholds have at least one qualifying day at Bluff City 3 SW.
3 years with a qualifying day
Days at or above 30 C (86 F) per year at Bluff City 3 SW Days per year at Bluff City 3 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 129 in 1943. 0501001501942: 1051943: 1291944: 127194219431944
Days per year at Bluff City 3 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 129 in 1943.
Days at or above 30 C (86 F) per year at Bluff City 3 SW
YearDaysDecade average
1942105120.3
1943129120.3
1944127120.3
First to last qualifying date each year at Bluff City 3 SW For each year, a bar from the first to the last day at Bluff City 3 SW meeting 30 C (86 F). 1942: 27 May 1942 to 17 October 19421943: 10 April 1943 to 16 September 19431944: 12 May 1944 to 29 October 1944194219431944JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bluff City 3 SW meeting 30 C (86 F).
First to last qualifying date each year at Bluff City 3 SW
YearFirst dateLast date
19421942-05-271942-10-17
19431943-04-101943-09-16
19441944-05-121944-10-29

Every Fixed Threshold

Fixed thresholds at Bluff City 3 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days31291943127
35 C (95 F): Days361194351
40 C (104 F): Days3819431
90 F (32.2 C): Days3102194392
100 F (37.8 C): Days32819438
0 C (32 F): Ice days (max1619426
0 C (32 F): Frost days (min246194344
-10 C (14 F): Days with min2519431
20 C (68 F): Tropical nights (min295194380
25 C (77 F): Days with min2619432
10 mm (0.39 in): Days with 10 mm or more rain5460195734
25 mm (0.98 in): Days with 25 mm or more rain5426195712
50 mm (1.97 in): Days with 50 mm or more rain541119916
100 mm (3.94 in): Days with 100 mm or more rain20319873
10 cm (3.9 in): Days with 10 cm or more snowfall6319661

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

  • Data for Bluff City 3 SW 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).