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

Florence Threshold Days by Year (USC00052955)

14 fixed thresholds counted per year at Florence (USC00052955): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Florence Thresholds

  • Florence: days with 10 mm (0.39 in) or more of precipitation in 10 years, most in 1909 with 16.
  • Florence: days with a maximum temperature at or above 30 C (86 F) in 9 years, most in 1934 with 106.
  • Florence: days with a maximum temperature at or above 35 C (95 F) in 9 years, most in 1948 with 36.
  • Florence: days with a maximum temperature at or above 90 F (32.2 C) in 9 years, most in 1948 with 79.
  • 14 fixed thresholds have at least one qualifying day at Florence.
9 years with a qualifying day
Days at or above 30 C (86 F) per year at Florence Days per year at Florence with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 106 in 1934. 0501001501909: 661933: 911934: 1061935: 811936: 851939: 931941: 801948: 1021949: 86190919331934193519361939194119481949
Days per year at Florence with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 106 in 1934.
Days at or above 30 C (86 F) per year at Florence
YearDaysDecade average
19096666
19339191.2
193410691.2
19358191.2
19368591.2
19399391.2
19418089.3
194810289.3
19498689.3
First to last qualifying date each year at Florence For each year, a bar from the first to the last day at Florence meeting 30 C (86 F). 1909: 3 June 1909 to 28 October 19091933: 18 May 1933 to 29 September 19331934: 5 May 1934 to 8 October 19341935: 5 June 1935 to 3 October 19351936: 3 May 1936 to 25 September 19361939: 9 May 1939 to 22 September 19391941: 8 May 1941 to 12 October 19411948: 17 April 1948 to 4 October 19481949: 23 April 1949 to 16 October 194919091934193619411949JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Florence meeting 30 C (86 F).
First to last qualifying date each year at Florence
YearFirst dateLast date
19091909-06-031909-10-28
19331933-05-181933-09-29
19341934-05-051934-10-08
19351935-06-051935-10-03
19361936-05-031936-09-25
19391939-05-091939-09-22
19411941-05-081941-10-12
19481948-04-171948-10-04
19491949-04-231949-10-16

Every Fixed Threshold

Fixed thresholds at Florence
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days9106193486
35 C (95 F): Days936194833
40 C (104 F): Days1119491
90 F (32.2 C): Days979194867
100 F (37.8 C): Days710194910
0 C (32 F): Ice days (max921194814
0 C (32 F): Frost days (min81421935133
-10 C (14 F): Days with min848194839
-20 C (-4 F): Days with min6919486
20 C (68 F): Tropical nights (min6819361
10 mm (0.39 in): Days with 10 mm or more rain1016190914
25 mm (0.98 in): Days with 25 mm or more rain7419334
50 mm (1.97 in): Days with 50 mm or more rain2119331
10 cm (3.9 in): Days with 10 cm or more snowfall7919093

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

  • Data for Florence 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).