Florence Weather Records (USC00023027)

Record envelope, standing records and threshold days for Florence (USC00023027), Arizona, United States, with 118 years of record.

Key Facts for Florence

Florence (USC00023027) is a weather station in Arizona, United States at 33.04 latitude and -111.39 longitude, 427 m (1,400 ft) above sea level.
The station reports from 1892 to 2009, 118 years of record.
1,464 records set at Florence still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Florence set a daily record high minimum temperature of 17.2 C (63.0 F) on 4 February 2009.

About the Station

Location: Arizona, United States, 33.04 latitude, -111.39 longitude.
Elevation: 427 m (1,400 ft).
Period of record: 1892 to 2009, 118 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Florence. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Florence, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.7 C (89.1 F)	-11.7 C (10.9 F)	n/a	n/a
Feb	33.3 C (91.9 F)	-7.8 C (18.0 F)	n/a	n/a
Mar	37.2 C (99.0 F)	-6.7 C (19.9 F)	n/a	n/a
Apr	40.6 C (105.1 F)	-5.0 C (23.0 F)	n/a	n/a
May	46.1 C (115.0 F)	0.0 C (32.0 F)	n/a	n/a
Jun	47.8 C (118.0 F)	7.2 C (45.0 F)	n/a	n/a
Jul	48.3 C (118.9 F)	12.2 C (54.0 F)	n/a	n/a
Aug	47.8 C (118.0 F)	11.1 C (52.0 F)	n/a	n/a
Sep	47.2 C (117.0 F)	5.0 C (41.0 F)	n/a	n/a
Oct	44.4 C (111.9 F)	-1.1 C (30.0 F)	n/a	n/a
Nov	36.1 C (97.0 F)	-10.0 C (14.0 F)	n/a	n/a
Dec	32.8 C (91.0 F)	-8.9 C (16.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Florence still stand. 2008 holds the most, with 129.

Standing records at Florence by the year they were set
Year set	Standing records
1892	4
1893	6
1894	2
1908	6
1909	16
1910	35
1911	4
1913	18
1914	4
1915	10
1916	15
1917	10
1918	3
1919	5
1921	5
1923	20
1924	10
1925	15
1926	21
1927	11
1928	30
1929	11
1930	13
1931	15
1932	17
1933	13
1934	19
1935	13
1936	13
1937	22
1938	15
1939	35
1940	17
1941	14
1942	8
1943	16
1944	11
1945	19
1946	10
1947	30
1948	22
1949	30
1950	32
1951	15
1952	10
1953	20
1954	13
1955	25
1956	23
1957	13
1958	15
1959	7
1960	16
1961	4
1962	10
1963	8
1964	19
1965	18
1966	7
1967	10
1968	22
1969	6
1970	19
1971	19
1972	12
1973	9
1974	8
1975	14
1976	14
1977	6
1978	6
1979	11
1980	11
1981	10
1982	12
1983	9
1984	6
1985	23
1986	16
1987	12
1988	6
1989	10
1990	18
1991	13
1992	7
1993	9
1994	14
1995	9
1996	9
1997	11
1998	7
1999	7
2000	17
2001	7
2003	15
2004	13
2005	9
2006	14
2007	13
2008	129
2009	4

All-Time Record Progression

4 new records

4 all-time records were set at Florence between 12 August 1964 and 22 July 2006. Each dot is a new record.

When Florence set new all-time records
Date	Kind	Detail
1964-08-12	Record daily precipitation	Record daily precipitation 71.9 mm (2.8 in)
1983-07-05	Record high maximum temperature	Record high maximum temperature 48.3 C (118.9 F)
1988-07-29	Record daily precipitation	Record daily precipitation 82.6 mm (3.3 in)
2006-07-22	Record high minimum temperature	Record high minimum temperature 35.6 C (96.1 F)

Wettest Day of Each Month

Jul: 82.6 mm (3.3 in)

The wettest day on record for each calendar month at Florence. The most was 82.6 mm (3.3 in) on 29 July 1988.

Record daily precipitation for each month at Florence
Month	Record daily precipitation (mm)	Date
Jan	42.4 mm (1.7 in)	10 January 1993
Feb	51.8 mm (2.0 in)	14 February 2003
Mar	39.6 mm (1.6 in)	22 March 1954
Apr	40.6 mm (1.6 in)	12 April 1926
May	39.1 mm (1.5 in)	10 May 1944
Jun	51.1 mm (2.0 in)	22 June 1972
Jul	82.6 mm (3.3 in)	29 July 1988
Aug	71.9 mm (2.8 in)	12 August 1964
Sep	59.9 mm (2.4 in)	2 September 1971
Oct	68.6 mm (2.7 in)	19 October 1972
Nov	63.5 mm (2.5 in)	5 November 1995
Dec	64.3 mm (2.5 in)	18 December 1978

Period of Record Coverage

1892 to 2009

102 years of record at Florence, 1892 to 2009. 22 years have data for under 90 percent of days and are left out of rankings: 1892, 1894, 1908, 1909, 1911, 1917, 1918, 1919 and others.

Days with data per year at Florence
Year	Days with data	Share of year	Complete
1892	31	8%	No
1893	334	92%	Yes
1894	59	16%	No
1908	67	18%	No
1909	274	75%	No
1910	365	100%	Yes
1911	153	42%	No
1913	365	100%	Yes
1914	358	98%	Yes
1915	364	100%	Yes
1916	366	100%	Yes
1917	159	44%	No
1918	104	28%	No
1919	77	21%	No
1921	47	13%	No
1923	303	83%	No
1924	365	100%	Yes
1925	363	99%	Yes
1926	354	97%	Yes
1927	284	78%	No
1928	358	98%	Yes
1929	289	79%	No
1930	331	91%	Yes
1931	363	99%	Yes
1932	363	99%	Yes
1933	353	97%	Yes
1934	325	89%	No
1935	358	98%	Yes
1936	361	99%	Yes
1937	349	96%	Yes
1938	355	97%	Yes
1939	353	97%	Yes
1940	345	94%	Yes
1941	364	100%	Yes
1942	365	100%	Yes
1943	364	100%	Yes
1944	365	100%	Yes
1945	363	99%	Yes
1946	359	98%	Yes
1947	362	99%	Yes
1948	365	100%	Yes
1949	365	100%	Yes
1950	362	99%	Yes
1951	359	98%	Yes
1952	361	99%	Yes
1953	351	96%	Yes
1954	364	100%	Yes
1955	365	100%	Yes
1956	365	100%	Yes
1957	360	99%	Yes
1958	365	100%	Yes
1959	363	99%	Yes
1960	365	100%	Yes
1961	362	99%	Yes
1962	364	100%	Yes
1963	364	100%	Yes
1964	366	100%	Yes
1965	362	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	363	99%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	350	96%	Yes
1983	346	95%	Yes
1984	342	93%	Yes
1985	347	95%	Yes
1986	358	98%	Yes
1987	361	99%	Yes
1988	335	92%	Yes
1989	364	100%	Yes
1990	365	100%	Yes
1991	363	99%	Yes
1992	360	98%	Yes
1993	362	99%	Yes
1994	363	99%	Yes
1995	350	96%	Yes
1996	332	91%	Yes
1997	343	94%	Yes
1998	324	89%	No
1999	279	76%	No
2000	335	92%	Yes
2001	284	78%	No
2002	55	15%	No
2003	304	83%	No
2004	364	99%	Yes
2005	331	91%	Yes
2006	322	88%	No
2007	298	82%	No
2008	306	84%	No
2009	45	12%	No

Latest Records

Latest records at Florence
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 February 2009	Florence, US	daily high min	17.2 C (63.0 F)	3.3 C (5.9 F)	74 years	39 of 100 (Notable)
24 January 2009	Florence, US	daily high min	12.8 C (55.0 F)	0.6 C (1.1 F)	4 years	12 of 100 (Routine)
22 January 2009	Florence, US	daily high min	16.1 C (61.0 F)	2.2 C (4.0 F)	67 years	35 of 100 (Notable)
19 January 2009	Florence, US	daily high min	14.4 C (57.9 F)	2.2 C (4.0 F)	32 years	24 of 100 (Routine)
27 December 2008	Florence, US	daily low max	9.4 C (48.9 F)	0.6 C (1.1 F)	82 years	35 of 100 (Notable)
22 November 2008	Florence, US	daily high min	16.7 C (62.1 F)	1.1 C (2.0 F)	59 years	29 of 100 (Routine)
19 November 2008	Florence, US	daily high min	19.4 C (66.9 F)	1.6 C (2.9 F)	81 years	37 of 100 (Notable)
18 November 2008	Florence, US	daily high min	21.1 C (70.0 F)	3.9 C (7.0 F)	81 years	42 of 100 (Notable)
17 November 2008	Florence, US	daily high min	17.8 C (64.0 F)	2.2 C (4.0 F)	81 years	38 of 100 (Notable)
16 November 2008	Florence, US	daily high min	17.8 C (64.0 F)	1.1 C (2.0 F)	72 years	33 of 100 (Routine)
15 November 2008	Florence, US	daily high min	19.4 C (66.9 F)	3.3 C (5.9 F)	72 years	38 of 100 (Notable)
3 November 2008	Florence, US	daily high min	17.8 C (64.0 F)	0.6 C (1.1 F)	94 years	39 of 100 (Notable)
1 November 2008	Florence, US	daily high min	21.7 C (71.1 F)	5.0 C (9.0 F)	84 years	46 of 100 (Notable)
30 October 2008	Florence, US	daily high min	20.6 C (69.1 F)	1.7 C (3.1 F)	72 years	34 of 100 (Routine)
29 October 2008	Florence, US	daily high min (Tie)	22.8 C (73.0 F)	tie	1 year	2 of 100 (Routine)
28 October 2008	Florence, US	daily high min	22.8 C (73.0 F)	4.5 C (8.1 F)	65 years	38 of 100 (Notable)
27 October 2008	Florence, US	daily high min	25.6 C (78.1 F)	5.6 C (10.1 F)	93 years	49 of 100 (Notable)
20 October 2008	Florence, US	daily high min	23.9 C (75.0 F)	2.2 C (4.0 F)	61 years	32 of 100 (Routine)
18 October 2008	Florence, US	daily high min	26.1 C (79.0 F)	5.5 C (9.9 F)	8 years	24 of 100 (Routine)
17 October 2008	Florence, US	daily high min (Tie)	22.8 C (73.0 F)	tie	80 years	8 of 100 (Routine)

Climate Trend

73 complete years, 1910 to 2008

One stripe for each of 73 complete years at Florence, 1910 to 2008. Blue stripes are years cooler than the station's own mean of 21.2 C (70.2 F); red stripes are warmer. The coolest year was 1964, at 19.4 C (66.8 F), and the warmest was 2008, at 24.4 C (75.9 F). The strongest colour marks a difference of 3.3 C (5.9 F).

Annual mean temperature at Florence as warming stripes, 1910 to 2008
Year	Annual mean temperature	Difference from the station mean
1910	21.8 C	+0.55 C
1913	20.5 C	-0.75 C
1914	21.7 C	+0.45 C
1916	21.4 C	+0.23 C
1924	20.2 C	-0.97 C
1925	20.3 C	-0.87 C
1926	20.3 C	-0.93 C
1931	20.8 C	-0.42 C
1932	20.1 C	-1.13 C
1933	20.7 C	-0.47 C
1935	21.0 C	-0.19 C
1936	21.7 C	+0.46 C
1937	21.7 C	+0.46 C
1938	20.6 C	-0.64 C
1939	21.1 C	-0.08 C
1940	21.7 C	+0.53 C
1941	20.3 C	-0.94 C
1942	21.1 C	-0.10 C
1943	22.0 C	+0.82 C
1944	20.1 C	-1.07 C
1945	20.3 C	-0.90 C
1946	21.0 C	-0.24 C
1947	21.3 C	+0.13 C
1948	20.9 C	-0.27 C
1950	21.4 C	+0.17 C
1951	20.8 C	-0.42 C
1952	20.9 C	-0.35 C
1955	20.6 C	-0.65 C
1956	21.2 C	+0.00 C
1957	21.3 C	+0.05 C
1958	21.8 C	+0.61 C
1959	21.7 C	+0.50 C
1960	21.4 C	+0.17 C
1961	21.2 C	-0.01 C
1962	21.2 C	+0.04 C
1963	21.1 C	-0.15 C
1964	19.4 C	-1.84 C
1965	20.4 C	-0.80 C
1966	21.3 C	+0.09 C
1967	20.8 C	-0.43 C
1968	19.8 C	-1.44 C
1969	21.3 C	+0.08 C
1970	21.3 C	+0.05 C
1971	20.7 C	-0.55 C
1972	21.2 C	+0.04 C
1973	20.8 C	-0.44 C
1974	21.2 C	-0.01 C
1975	20.5 C	-0.75 C
1976	21.2 C	-0.03 C
1977	22.0 C	+0.76 C
1978	21.6 C	+0.39 C
1979	21.1 C	-0.12 C
1980	21.9 C	+0.67 C
1981	22.3 C	+1.09 C
1982	20.9 C	-0.33 C
1983	20.7 C	-0.48 C
1984	21.0 C	-0.22 C
1985	21.0 C	-0.18 C
1986	21.2 C	+0.02 C
1987	21.5 C	+0.28 C
1989	22.2 C	+1.02 C
1990	21.4 C	+0.16 C
1991	21.0 C	-0.23 C
1992	21.3 C	+0.09 C
1993	21.5 C	+0.27 C
1994	21.7 C	+0.51 C
1995	21.9 C	+0.72 C
1996	22.2 C	+1.04 C
1997	22.0 C	+0.84 C
2004	21.9 C	+0.73 C
2005	22.2 C	+1.02 C
2006	22.3 C	+1.06 C
2008	24.4 C	+3.20 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1910 to 2008. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 73 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Florence
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (0.1 to 0.2) per decade	0.2 F (0.1 to 0.3) per decade	1910 to 2008	73	Rise
Mean daily maximum	-0.08 C (-0.16 to -0.01) per decade	-0.15 F (-0.28 to -0.02) per decade	1910 to 2008	73	Fall
Mean daily minimum	0.3 C (0.2 to 0.5) per decade	0.6 F (0.4 to 0.8) per decade	1910 to 2008	73	Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1892 to 2009

Yearly extremes at Florence: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	48.3 C (118.9 F)	1983	45.9 C (114.5 F)	102
Coldest night (TNn)	-11.7 C (10.9 F)	1913	-5.0 C (23.0 F)	102
Wettest day (Rx1day)	82.6 mm (3.3 in)	1988	32.3 mm (1.3 in)	104
Wettest five days (Rx5day)	139.3 mm (5.5 in)	1983	46.0 mm (1.8 in)	104
Longest dry spell (CDD)	150 days	1972	75 days	104

Hottest day (TXx)

The hottest day of the year at Florence, 1892 to 2009. The record is 48.3 C (118.9 F) in 1983, marked on the chart; the median year is 45.9 C (114.5 F).

Hottest day (TXx) at Florence by year
Year	Hottest day (TXx)
1892	23.9 C (75.0 F)
1893	43.3 C (109.9 F)
1894	24.4 C (75.9 F)
1908	38.3 C (100.9 F)
1909	45.6 C (114.1 F)
1910	46.1 C (115.0 F)
1911	43.3 C (109.9 F)
1912	n/a
1913	45.6 C (114.1 F)
1914	44.4 C (111.9 F)
1915	45.0 C (113.0 F)
1916	45.0 C (113.0 F)
1917	45.0 C (113.0 F)
1918	39.4 C (102.9 F)
1919	38.9 C (102.0 F)
1921	40.6 C (105.1 F)
1922	n/a
1923	44.4 C (111.9 F)
1924	45.0 C (113.0 F)
1925	46.7 C (116.1 F)
1926	45.6 C (114.1 F)
1927	45.6 C (114.1 F)
1928	46.1 C (115.0 F)
1929	46.7 C (116.1 F)
1930	43.9 C (111.0 F)
1931	46.7 C (116.1 F)
1932	45.6 C (114.1 F)
1933	45.6 C (114.1 F)
1934	46.7 C (116.1 F)
1935	45.0 C (113.0 F)
1936	47.2 C (117.0 F)
1937	47.2 C (117.0 F)
1938	46.1 C (115.0 F)
1939	47.2 C (117.0 F)
1940	47.8 C (118.0 F)
1941	44.4 C (111.9 F)
1942	46.1 C (115.0 F)
1943	46.7 C (116.1 F)
1944	46.7 C (116.1 F)
1945	46.1 C (115.0 F)
1946	45.0 C (113.0 F)
1947	47.2 C (117.0 F)
1948	46.7 C (116.1 F)
1949	46.1 C (115.0 F)
1950	47.2 C (117.0 F)
1951	45.6 C (114.1 F)
1952	46.1 C (115.0 F)
1953	47.8 C (118.0 F)
1954	46.1 C (115.0 F)
1955	46.7 C (116.1 F)
1956	46.1 C (115.0 F)
1957	47.2 C (117.0 F)
1958	47.8 C (118.0 F)
1959	46.1 C (115.0 F)
1960	47.2 C (117.0 F)
1961	45.0 C (113.0 F)
1962	45.6 C (114.1 F)
1963	45.0 C (113.0 F)
1964	46.1 C (115.0 F)
1965	45.0 C (113.0 F)
1966	44.4 C (111.9 F)
1967	45.0 C (113.0 F)
1968	47.2 C (117.0 F)
1969	46.7 C (116.1 F)
1970	47.8 C (118.0 F)
1971	47.2 C (117.0 F)
1972	46.7 C (116.1 F)
1973	47.8 C (118.0 F)
1974	47.8 C (118.0 F)
1975	47.8 C (118.0 F)
1976	47.8 C (118.0 F)
1977	45.6 C (114.1 F)
1978	46.7 C (116.1 F)
1979	47.2 C (117.0 F)
1980	46.7 C (116.1 F)
1981	46.1 C (115.0 F)
1982	47.8 C (118.0 F)
1983	48.3 C (118.9 F)
1984	45.6 C (114.1 F)
1985	48.3 C (118.9 F)
1986	45.0 C (113.0 F)
1987	44.4 C (111.9 F)
1988	44.4 C (111.9 F)
1989	45.0 C (113.0 F)
1990	46.7 C (116.1 F)
1991	42.2 C (108.0 F)
1992	42.2 C (108.0 F)
1993	44.4 C (111.9 F)
1994	46.7 C (116.1 F)
1995	46.1 C (115.0 F)
1996	44.4 C (111.9 F)
1997	43.3 C (109.9 F)
1998	45.6 C (114.1 F)
1999	42.8 C (109.0 F)
2000	43.9 C (111.0 F)
2001	45.6 C (114.1 F)
2002	36.1 C (97.0 F)
2003	46.1 C (115.0 F)
2004	43.9 C (111.0 F)
2005	46.1 C (115.0 F)
2006	46.7 C (116.1 F)
2007	45.0 C (113.0 F)
2008	45.0 C (113.0 F)
2009	27.2 C (81.0 F)

Coldest night (TNn)

The coldest night of the year at Florence, 1892 to 2009. The record is -11.7 C (10.9 F) in 1913, marked on the chart; the median year is -5.0 C (23.0 F).

Coldest night (TNn) at Florence by year
Year	Coldest night (TNn)
1892	-5.6 C (21.9 F)
1893	-5.0 C (23.0 F)
1894	-3.3 C (26.1 F)
1908	0.0 C (32.0 F)
1909	-7.2 C (19.0 F)
1910	-5.6 C (21.9 F)
1911	2.2 C (36.0 F)
1912	n/a
1913	-11.7 C (10.9 F)
1914	-2.8 C (27.0 F)
1915	-4.4 C (24.1 F)
1916	-6.7 C (19.9 F)
1917	-3.9 C (25.0 F)
1918	-1.7 C (28.9 F)
1919	-1.1 C (30.0 F)
1921	10.0 C (50.0 F)
1922	n/a
1923	-3.9 C (25.0 F)
1924	-5.0 C (23.0 F)
1925	-6.1 C (21.0 F)
1926	-3.9 C (25.0 F)
1927	-2.8 C (27.0 F)
1928	-10.0 C (14.0 F)
1929	-1.7 C (28.9 F)
1930	-7.2 C (19.0 F)
1931	-6.7 C (19.9 F)
1932	-8.9 C (16.0 F)
1933	-6.7 C (19.9 F)
1934	-3.9 C (25.0 F)
1935	-3.9 C (25.0 F)
1936	-6.1 C (21.0 F)
1937	-7.8 C (18.0 F)
1938	-4.4 C (24.1 F)
1939	-6.1 C (21.0 F)
1940	-3.9 C (25.0 F)
1941	-3.3 C (26.1 F)
1942	-3.9 C (25.0 F)
1943	-4.4 C (24.1 F)
1944	-5.6 C (21.9 F)
1945	-5.0 C (23.0 F)
1946	-5.6 C (21.9 F)
1947	-6.7 C (19.9 F)
1948	-6.1 C (21.0 F)
1949	-6.7 C (19.9 F)
1950	-9.4 C (15.1 F)
1951	-6.7 C (19.9 F)
1952	-5.0 C (23.0 F)
1953	-5.6 C (21.9 F)
1954	-8.3 C (17.1 F)
1955	-6.1 C (21.0 F)
1956	-6.7 C (19.9 F)
1957	-5.0 C (23.0 F)
1958	-5.0 C (23.0 F)
1959	-3.9 C (25.0 F)
1960	-8.3 C (17.1 F)
1961	-3.9 C (25.0 F)
1962	-5.0 C (23.0 F)
1963	-7.8 C (18.0 F)
1964	-9.4 C (15.1 F)
1965	-7.2 C (19.0 F)
1966	-5.6 C (21.9 F)
1967	-8.3 C (17.1 F)
1968	-5.6 C (21.9 F)
1969	-5.0 C (23.0 F)
1970	-8.9 C (16.0 F)
1971	-10.0 C (14.0 F)
1972	-5.6 C (21.9 F)
1973	-3.9 C (25.0 F)
1974	-7.8 C (18.0 F)
1975	-5.6 C (21.9 F)
1976	-7.2 C (19.0 F)
1977	-3.3 C (26.1 F)
1978	-6.1 C (21.0 F)
1979	-5.0 C (23.0 F)
1980	-1.7 C (28.9 F)
1981	-4.4 C (24.1 F)
1982	-3.3 C (26.1 F)
1983	-3.9 C (25.0 F)
1984	-4.4 C (24.1 F)
1985	-6.7 C (19.9 F)
1986	-2.8 C (27.0 F)
1987	-3.9 C (25.0 F)
1988	-5.6 C (21.9 F)
1989	-2.8 C (27.0 F)
1990	-3.9 C (25.0 F)
1991	-2.8 C (27.0 F)
1992	-1.7 C (28.9 F)
1993	-2.2 C (28.0 F)
1994	-3.3 C (26.1 F)
1995	0.0 C (32.0 F)
1996	-1.7 C (28.9 F)
1997	-2.8 C (27.0 F)
1998	-3.9 C (25.0 F)
1999	-3.3 C (26.1 F)
2000	-2.8 C (27.0 F)
2001	-1.7 C (28.9 F)
2002	-1.7 C (28.9 F)
2003	-5.6 C (21.9 F)
2004	-3.9 C (25.0 F)
2005	-4.4 C (24.1 F)
2006	-5.0 C (23.0 F)
2007	-7.8 C (18.0 F)
2008	-3.9 C (25.0 F)
2009	-0.6 C (30.9 F)

Wettest day (Rx1day)

The wettest day of the year at Florence, 1892 to 2009. The record is 82.6 mm (3.3 in) in 1988, marked on the chart; the median year is 32.3 mm (1.3 in).

Wettest day (Rx1day) at Florence by year
Year	Wettest day (Rx1day)
1892	3.3 mm (0.13 in)
1893	46.7 mm (1.8 in)
1894	11.4 mm (0.4 in)
1908	3.6 mm (0.14 in)
1909	31.0 mm (1.2 in)
1910	35.6 mm (1.4 in)
1911	12.7 mm (0.5 in)
1912	27.9 mm (1.1 in)
1913	35.3 mm (1.4 in)
1914	35.1 mm (1.4 in)
1915	47.0 mm (1.9 in)
1916	48.3 mm (1.9 in)
1917	33.0 mm (1.3 in)
1918	27.2 mm (1.1 in)
1919	24.1 mm (0.9 in)
1921	57.7 mm (2.3 in)
1922	19.1 mm (0.8 in)
1923	27.9 mm (1.1 in)
1924	15.5 mm (0.6 in)
1925	50.5 mm (2.0 in)
1926	40.6 mm (1.6 in)
1927	26.7 mm (1.1 in)
1928	27.9 mm (1.1 in)
1929	35.8 mm (1.4 in)
1930	49.8 mm (2.0 in)
1931	30.2 mm (1.2 in)
1932	39.4 mm (1.6 in)
1933	27.9 mm (1.1 in)
1934	27.4 mm (1.1 in)
1935	28.2 mm (1.1 in)
1936	36.8 mm (1.4 in)
1937	49.3 mm (1.9 in)
1938	20.1 mm (0.8 in)
1939	41.9 mm (1.6 in)
1940	36.6 mm (1.4 in)
1941	38.1 mm (1.5 in)
1942	38.1 mm (1.5 in)
1943	15.7 mm (0.6 in)
1944	39.1 mm (1.5 in)
1945	26.7 mm (1.1 in)
1946	54.6 mm (2.1 in)
1947	20.6 mm (0.8 in)
1948	21.8 mm (0.9 in)
1949	19.1 mm (0.8 in)
1950	28.2 mm (1.1 in)
1951	39.9 mm (1.6 in)
1952	32.8 mm (1.3 in)
1953	24.1 mm (0.9 in)
1954	39.6 mm (1.6 in)
1955	56.1 mm (2.2 in)
1956	27.9 mm (1.1 in)
1957	39.1 mm (1.5 in)
1958	20.8 mm (0.8 in)
1959	48.0 mm (1.9 in)
1960	26.9 mm (1.1 in)
1961	55.1 mm (2.2 in)
1962	18.5 mm (0.7 in)
1963	41.7 mm (1.6 in)
1964	71.9 mm (2.8 in)
1965	53.1 mm (2.1 in)
1966	44.5 mm (1.8 in)
1967	45.2 mm (1.8 in)
1968	29.5 mm (1.2 in)
1969	16.5 mm (0.6 in)
1970	27.4 mm (1.1 in)
1971	59.9 mm (2.4 in)
1972	68.6 mm (2.7 in)
1973	17.8 mm (0.7 in)
1974	22.1 mm (0.9 in)
1975	25.4 mm (1.0 in)
1976	32.0 mm (1.3 in)
1977	36.3 mm (1.4 in)
1978	64.3 mm (2.5 in)
1979	28.7 mm (1.1 in)
1980	21.6 mm (0.9 in)
1981	27.7 mm (1.1 in)
1982	34.5 mm (1.4 in)
1983	50.8 mm (2.0 in)
1984	38.6 mm (1.5 in)
1985	49.8 mm (2.0 in)
1986	23.4 mm (0.9 in)
1987	35.6 mm (1.4 in)
1988	82.6 mm (3.3 in)
1989	26.7 mm (1.1 in)
1990	58.4 mm (2.3 in)
1991	22.1 mm (0.9 in)
1992	33.8 mm (1.3 in)
1993	42.4 mm (1.7 in)
1994	27.2 mm (1.1 in)
1995	63.5 mm (2.5 in)
1996	29.7 mm (1.2 in)
1997	30.5 mm (1.2 in)
1998	29.7 mm (1.2 in)
1999	20.3 mm (0.8 in)
2000	31.0 mm (1.2 in)
2001	25.4 mm (1.0 in)
2002	6.4 mm (0.25 in)
2003	51.8 mm (2.0 in)
2004	23.4 mm (0.9 in)
2005	42.4 mm (1.7 in)
2006	45.2 mm (1.8 in)
2007	38.9 mm (1.5 in)
2008	32.5 mm (1.3 in)
2009	12.7 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Florence, 1892 to 2009. The record is 139.3 mm (5.5 in) in 1983, marked on the chart; the median year is 46.0 mm (1.8 in).

Wettest five days (Rx5day) at Florence by year
Year	Wettest five days (Rx5day)
1892	3.3 mm (0.13 in)
1893	54.6 mm (2.1 in)
1894	18.8 mm (0.7 in)
1908	6.6 mm (0.26 in)
1909	32.2 mm (1.3 in)
1910	38.1 mm (1.5 in)
1911	22.9 mm (0.9 in)
1912	40.6 mm (1.6 in)
1913	54.6 mm (2.1 in)
1914	97.8 mm (3.9 in)
1915	60.8 mm (2.4 in)
1916	57.9 mm (2.3 in)
1917	51.6 mm (2.0 in)
1918	41.2 mm (1.6 in)
1919	34.3 mm (1.4 in)
1921	69.4 mm (2.7 in)
1922	19.1 mm (0.8 in)
1923	32.0 mm (1.3 in)
1924	27.2 mm (1.1 in)
1925	86.1 mm (3.4 in)
1926	48.2 mm (1.9 in)
1927	42.4 mm (1.7 in)
1928	29.9 mm (1.2 in)
1929	49.0 mm (1.9 in)
1930	66.8 mm (2.6 in)
1931	70.1 mm (2.8 in)
1932	47.7 mm (1.9 in)
1933	44.5 mm (1.8 in)
1934	34.0 mm (1.3 in)
1935	51.3 mm (2.0 in)
1936	62.5 mm (2.5 in)
1937	54.1 mm (2.1 in)
1938	35.1 mm (1.4 in)
1939	47.5 mm (1.9 in)
1940	64.3 mm (2.5 in)
1941	64.3 mm (2.5 in)
1942	42.7 mm (1.7 in)
1943	19.8 mm (0.8 in)
1944	47.9 mm (1.9 in)
1945	36.9 mm (1.5 in)
1946	90.7 mm (3.6 in)
1947	36.1 mm (1.4 in)
1948	36.9 mm (1.5 in)
1949	31.8 mm (1.3 in)
1950	35.8 mm (1.4 in)
1951	59.4 mm (2.3 in)
1952	39.9 mm (1.6 in)
1953	38.3 mm (1.5 in)
1954	71.1 mm (2.8 in)
1955	104.7 mm (4.1 in)
1956	35.2 mm (1.4 in)
1957	53.3 mm (2.1 in)
1958	26.4 mm (1.0 in)
1959	50.8 mm (2.0 in)
1960	47.4 mm (1.9 in)
1961	55.1 mm (2.2 in)
1962	30.7 mm (1.2 in)
1963	57.9 mm (2.3 in)
1964	71.9 mm (2.8 in)
1965	96.0 mm (3.8 in)
1966	59.5 mm (2.3 in)
1967	111.2 mm (4.4 in)
1968	36.3 mm (1.4 in)
1969	25.5 mm (1.0 in)
1970	56.3 mm (2.2 in)
1971	60.9 mm (2.4 in)
1972	92.5 mm (3.6 in)
1973	34.3 mm (1.4 in)
1974	31.5 mm (1.2 in)
1975	42.2 mm (1.7 in)
1976	32.0 mm (1.3 in)
1977	37.8 mm (1.5 in)
1978	73.4 mm (2.9 in)
1979	41.4 mm (1.6 in)
1980	42.7 mm (1.7 in)
1981	31.5 mm (1.2 in)
1982	36.3 mm (1.4 in)
1983	139.3 mm (5.5 in)
1984	60.1 mm (2.4 in)
1985	68.1 mm (2.7 in)
1986	39.9 mm (1.6 in)
1987	39.9 mm (1.6 in)
1988	84.1 mm (3.3 in)
1989	26.7 mm (1.1 in)
1990	72.4 mm (2.9 in)
1991	46.7 mm (1.8 in)
1992	57.9 mm (2.3 in)
1993	54.1 mm (2.1 in)
1994	54.4 mm (2.1 in)
1995	66.1 mm (2.6 in)
1996	59.4 mm (2.3 in)
1997	37.6 mm (1.5 in)
1998	42.4 mm (1.7 in)
1999	36.3 mm (1.4 in)
2000	45.0 mm (1.8 in)
2001	30.0 mm (1.2 in)
2002	12.8 mm (0.5 in)
2003	65.8 mm (2.6 in)
2004	24.4 mm (1.0 in)
2005	58.7 mm (2.3 in)
2006	64.7 mm (2.5 in)
2007	45.3 mm (1.8 in)
2008	60.4 mm (2.4 in)
2009	21.6 mm (0.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Florence, 1892 to 2009. The record is 150 days in 1972, marked on the chart; the median year is 75 days.

Longest dry spell (CDD) at Florence by year
Year	Longest dry spell (CDD)
1892	26 days
1893	60 days
1894	22 days
1908	41 days
1909	111 days
1910	81 days
1911	61 days
1912	58 days
1913	83 days
1914	61 days
1915	75 days
1916	107 days
1917	67 days
1918	24 days
1919	23 days
1921	39 days
1922	27 days
1923	76 days
1924	64 days
1925	69 days
1926	75 days
1927	86 days
1928	149 days
1929	99 days
1930	53 days
1931	59 days
1932	48 days
1933	51 days
1934	53 days
1935	54 days
1936	107 days
1937	63 days
1938	72 days
1939	77 days
1940	37 days
1941	75 days
1942	82 days
1943	148 days
1944	50 days
1945	116 days
1946	87 days
1947	83 days
1948	121 days
1949	77 days
1950	88 days
1951	62 days
1952	40 days
1953	81 days
1954	63 days
1955	143 days
1956	75 days
1957	46 days
1958	44 days
1959	67 days
1960	78 days
1961	94 days
1962	98 days
1963	85 days
1964	61 days
1965	59 days
1966	94 days
1967	49 days
1968	82 days
1969	73 days
1970	80 days
1971	81 days
1972	150 days
1973	112 days
1974	109 days
1975	92 days
1976	64 days
1977	63 days
1978	58 days
1979	37 days
1980	72 days
1981	55 days
1982	54 days
1983	78 days
1984	91 days
1985	48 days
1986	58 days
1987	70 days
1988	87 days
1989	67 days
1990	50 days
1991	97 days
1992	37 days
1993	76 days
1994	137 days
1995	64 days
1996	116 days
1997	86 days
1998	113 days
1999	92 days
2000	82 days
2001	97 days
2002	34 days
2003	104 days
2004	89 days
2005	74 days
2006	69 days
2007	96 days
2008	95 days
2009	18 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

70 years with a frost

Across 70 years with a frost, the median last spring frost at Florence falls on 10 March and the median first autumn frost on 25 November, which leaves a median of 264 days between them.

In 1968 to 2008 the median growing season was 281 days. That is 31 days more than in 1910 to 1957.

Fitted over all years, the growing season changes by +4.9 days per decade at this station.

Frost dates and growing season at Florence
Measure	Median, all years	Earliest period (1910 to 1957)	Recent period (1968 to 2008)	Recent against earliest	Fitted trend
Last spring frost	10 March	16 March	23 February	21 days earlier	-3.3 days per decade
First autumn frost	25 November	17 November	29 November	12 days later	+1.6 days per decade
Growing days	264 days	250 days	281 days	31 days more	+4.9 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

82 years, 1893 to 2008

A day with at least 34.5 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 79.6 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Florence: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	34.5 mm (1.4 in)
5 years	47.1 mm (1.9 in)
10 years	55.2 mm (2.2 in)
25 years	65.2 mm (2.6 in)
50 years	72.5 mm (2.9 in)
100 years	79.6 mm (3.1 in)	Longer than the 82 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 82 years of values from 1893 to 2008.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 82.6 mm (3.3 in) in 1988; 71.9 mm (2.8 in) in 1964; 68.6 mm (2.7 in) in 1972.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Florence standing records by year: CSV or JSON. Field meanings are on the data page.
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). Records are computed by this site and are not official.

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