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
Record highRecord low2026 daily maximum2026 daily minimum
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
Year with most
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
Complete yearUnder 90 percent of days
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.
Cooler than the station meanWarmer than the station mean
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.