Record envelope, standing records and threshold days for Bisbee (USC00020768), Arizona, United States, with 94 years of record.
Key Facts for Bisbee
Bisbee (USC00020768) is a weather station in Arizona, United States at 31.43 latitude and -109.92 longitude, 1,618 m (5,307 ft) above sea level.
The station reports from 1892 to 1985, 94 years of record.
1,464 records set at Bisbee still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bisbee tied a daily record low minimum temperature of -5.0 C (23.0 F) on 24 February 1985.
About the Station
Location: Arizona, United States, 31.43 latitude, -109.92 longitude.
Elevation: 1,618 m (5,307 ft).
Period of record: 1892 to 1985, 94 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 Bisbee. 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 Bisbee, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
29.4 C (84.9 F)
-14.4 C (6.1 F)
n/a
n/a
Feb
29.4 C (84.9 F)
-11.7 C (10.9 F)
n/a
n/a
Mar
31.1 C (88.0 F)
-6.1 C (21.0 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-2.8 C (27.0 F)
n/a
n/a
May
38.3 C (100.9 F)
0.0 C (32.0 F)
n/a
n/a
Jun
41.1 C (106.0 F)
3.3 C (37.9 F)
n/a
n/a
Jul
40.0 C (104.0 F)
11.7 C (53.1 F)
n/a
n/a
Aug
38.3 C (100.9 F)
8.3 C (46.9 F)
n/a
n/a
Sep
37.8 C (100.0 F)
5.0 C (41.0 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-2.2 C (28.0 F)
n/a
n/a
Nov
32.2 C (90.0 F)
-8.9 C (16.0 F)
n/a
n/a
Dec
25.6 C (78.1 F)
-10.6 C (12.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bisbee still stand. 1927 holds the most, with 85.
Standing records at Bisbee by the year they were set
Year set
Standing records
1892
7
1893
34
1894
17
1895
33
1896
31
1897
21
1898
25
1899
27
1900
20
1901
21
1902
17
1903
12
1904
20
1905
9
1906
38
1907
23
1908
15
1909
28
1910
14
1911
25
1912
26
1913
11
1914
9
1915
16
1916
24
1917
14
1918
21
1919
18
1920
24
1921
22
1922
22
1923
16
1924
53
1925
54
1926
42
1927
85
1928
25
1929
18
1930
25
1931
18
1932
14
1933
20
1934
18
1935
13
1936
11
1937
18
1938
20
1939
19
1940
14
1941
11
1942
6
1943
11
1944
15
1945
15
1946
16
1947
17
1948
17
1949
22
1950
27
1951
13
1952
15
1953
15
1954
14
1955
13
1956
15
1957
13
1958
14
1959
6
1960
18
1961
3
1982
10
1983
17
1984
11
1985
3
All-Time Record Progression
2 new records
2 all-time records were set at Bisbee between 17 January 1949 and 31 January 1949. Each dot is a new record.
When Bisbee set new all-time records
Date
Kind
Detail
1949-01-17
Record snow depth
Record snow depth 50.8 cm (20.0 in)
1949-01-31
Record low minimum temperature
Record low minimum temperature -14.4 C (6.1 F)
Wettest Day of Each Month
Jul: 108.0 mm (4.3 in)
The wettest day on record for each calendar month at Bisbee. The most was 108.0 mm (4.3 in) on 22 July 1910.
Record daily precipitation for each month at Bisbee
Month
Record daily precipitation (mm)
Date
Jan
50.0 mm (2.0 in)
30 January 1983
Feb
52.8 mm (2.1 in)
28 February 1942
Mar
40.1 mm (1.6 in)
10 March 1898
Apr
36.8 mm (1.4 in)
26 April 1919
May
33.8 mm (1.3 in)
29 May 1907
Jun
50.8 mm (2.0 in)
24 June 1925
Jul
108.0 mm (4.3 in)
22 July 1910
Aug
76.7 mm (3.0 in)
12 August 1917
Sep
103.6 mm (4.1 in)
27 September 1926
Oct
52.1 mm (2.1 in)
5 October 1911
Nov
69.9 mm (2.8 in)
22 November 1919
Dec
62.5 mm (2.5 in)
3 December 1906
Period of Record Coverage
1892 to 1985
Complete yearUnder 90 percent of days
74 years of record at Bisbee, 1892 to 1985. 24 years have data for under 90 percent of days and are left out of rankings: 1892, 1894, 1903, 1905, 1913, 1916, 1917, 1943 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 58 complete years at Bisbee, 1893 to 1983. Blue stripes are years cooler than the station's own mean of 16.4 C (61.5 F); red stripes are warmer. The coolest year was 1908, at 14.9 C (58.8 F), and the warmest was 1927, at 19.1 C (66.3 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Bisbee as warming stripes, 1893 to 1983
Year
Annual mean temperature
Difference from the station mean
1893
16.5 C
+0.10 C
1896
16.7 C
+0.35 C
1897
15.9 C
-0.46 C
1898
15.8 C
-0.63 C
1899
15.8 C
-0.64 C
1900
16.5 C
+0.12 C
1901
15.7 C
-0.65 C
1904
16.1 C
-0.27 C
1906
15.0 C
-1.43 C
1907
15.1 C
-1.28 C
1908
14.9 C
-1.52 C
1909
15.0 C
-1.44 C
1910
16.3 C
-0.12 C
1911
15.0 C
-1.43 C
1914
15.9 C
-0.54 C
1915
16.2 C
-0.22 C
1918
16.5 C
+0.07 C
1919
16.2 C
-0.16 C
1920
16.5 C
+0.15 C
1921
17.1 C
+0.75 C
1922
16.7 C
+0.31 C
1923
16.1 C
-0.33 C
1924
17.8 C
+1.41 C
1925
17.8 C
+1.44 C
1926
17.4 C
+1.01 C
1927
19.1 C
+2.69 C
1928
15.9 C
-0.50 C
1929
16.8 C
+0.39 C
1930
16.4 C
-0.04 C
1931
16.9 C
+0.52 C
1932
16.4 C
+0.04 C
1933
17.0 C
+0.57 C
1935
16.0 C
-0.43 C
1936
16.5 C
+0.12 C
1937
17.1 C
+0.71 C
1938
16.9 C
+0.52 C
1939
17.1 C
+0.66 C
1941
15.8 C
-0.57 C
1942
16.4 C
+0.04 C
1943
16.4 C
+0.05 C
1944
15.1 C
-1.28 C
1945
16.1 C
-0.30 C
1946
16.7 C
+0.33 C
1947
16.5 C
+0.14 C
1948
16.7 C
+0.28 C
1949
16.0 C
-0.41 C
1950
17.6 C
+1.23 C
1951
16.4 C
+0.01 C
1952
16.0 C
-0.36 C
1953
16.3 C
-0.12 C
1954
17.3 C
+0.90 C
1955
16.0 C
-0.41 C
1956
16.8 C
+0.39 C
1957
16.5 C
+0.09 C
1958
16.4 C
-0.03 C
1959
16.5 C
+0.13 C
1960
16.6 C
+0.18 C
1983
16.0 C
-0.40 C
The fitted trend in annual mean temperature here over 1893 to 1983 is 0.09 C (-0.01 to 0.19) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.16 F (-0.01 to 0.33) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bisbee
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.09 C (-0.01 to 0.19) per decade
0.16 F (-0.01 to 0.33) per decade
1893 to 1983
58
Not clearly different from zero
Mean daily maximum
0.2 C (0.1 to 0.4) per decade
0.4 F (0.1 to 0.7) per decade
1893 to 1983
58
Rise
Mean daily minimum
-0.05 C (-0.11 to 0.02) per decade
-0.08 F (-0.20 to 0.04) per decade
1893 to 1983
58
Not clearly different from zero
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 1985
Yearly extremes at Bisbee: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
1924
37.2 C (99.0 F)
74
Coldest night (TNn)
-14.4 C (6.1 F)
1949
-6.1 C (21.0 F)
74
Wettest day (Rx1day)
108.0 mm (4.3 in)
1910
47.3 mm (1.9 in)
74
Wettest five days (Rx5day)
162.5 mm (6.4 in)
1926
75.2 mm (3.0 in)
74
Longest dry spell (CDD)
126 days
1949
60 days
74
Hottest day (TXx)
The hottest day of the year at Bisbee, 1892 to 1985. The record is 41.1 C (106.0 F) in 1924, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Bisbee by year
Year
Hottest day (TXx)
1892
22.2 C (72.0 F)
1893
36.7 C (98.1 F)
1894
35.6 C (96.1 F)
1895
35.6 C (96.1 F)
1896
37.8 C (100.0 F)
1897
35.6 C (96.1 F)
1898
37.2 C (99.0 F)
1899
35.6 C (96.1 F)
1900
37.2 C (99.0 F)
1901
36.7 C (98.1 F)
1902
37.2 C (99.0 F)
1903
36.7 C (98.1 F)
1904
35.0 C (95.0 F)
1905
31.1 C (88.0 F)
1906
34.4 C (93.9 F)
1907
36.1 C (97.0 F)
1908
33.3 C (91.9 F)
1909
34.4 C (93.9 F)
1910
35.0 C (95.0 F)
1911
33.3 C (91.9 F)
1912
35.0 C (95.0 F)
1913
31.1 C (88.0 F)
1914
36.1 C (97.0 F)
1915
39.4 C (102.9 F)
1916
35.0 C (95.0 F)
1917
36.7 C (98.1 F)
1918
36.7 C (98.1 F)
1919
38.3 C (100.9 F)
1920
40.0 C (104.0 F)
1921
37.2 C (99.0 F)
1922
37.2 C (99.0 F)
1923
37.8 C (100.0 F)
1924
41.1 C (106.0 F)
1925
38.9 C (102.0 F)
1926
40.0 C (104.0 F)
1927
40.6 C (105.1 F)
1928
37.8 C (100.0 F)
1929
40.6 C (105.1 F)
1930
38.9 C (102.0 F)
1931
38.3 C (100.9 F)
1932
37.2 C (99.0 F)
1933
38.3 C (100.9 F)
1934
37.8 C (100.0 F)
1935
37.8 C (100.0 F)
1936
37.2 C (99.0 F)
1937
37.8 C (100.0 F)
1938
37.2 C (99.0 F)
1939
40.0 C (104.0 F)
1940
37.2 C (99.0 F)
1941
34.4 C (93.9 F)
1942
37.2 C (99.0 F)
1943
35.6 C (96.1 F)
1944
37.2 C (99.0 F)
1945
38.3 C (100.9 F)
1946
37.8 C (100.0 F)
1947
37.2 C (99.0 F)
1948
38.3 C (100.9 F)
1949
36.7 C (98.1 F)
1950
37.8 C (100.0 F)
1951
37.8 C (100.0 F)
1952
36.1 C (97.0 F)
1953
37.8 C (100.0 F)
1954
36.7 C (98.1 F)
1955
37.2 C (99.0 F)
1956
37.2 C (99.0 F)
1957
37.2 C (99.0 F)
1958
39.4 C (102.9 F)
1959
37.2 C (99.0 F)
1960
38.3 C (100.9 F)
1961
32.2 C (90.0 F)
1982
36.7 C (98.1 F)
1983
37.2 C (99.0 F)
1984
36.1 C (97.0 F)
1985
22.2 C (72.0 F)
Coldest night (TNn)
The coldest night of the year at Bisbee, 1892 to 1985. The record is -14.4 C (6.1 F) in 1949, marked on the chart; the median year is -6.1 C (21.0 F).
Coldest night (TNn) at Bisbee by year
Year
Coldest night (TNn)
1892
-6.1 C (21.0 F)
1893
-4.4 C (24.1 F)
1894
-7.8 C (18.0 F)
1895
-6.7 C (19.9 F)
1896
-3.3 C (26.1 F)
1897
-5.6 C (21.9 F)
1898
-10.0 C (14.0 F)
1899
-8.3 C (17.1 F)
1900
-5.6 C (21.9 F)
1901
-7.8 C (18.0 F)
1902
-6.7 C (19.9 F)
1903
-9.4 C (15.1 F)
1904
-7.8 C (18.0 F)
1905
-3.3 C (26.1 F)
1906
-8.9 C (16.0 F)
1907
-5.6 C (21.9 F)
1908
-7.2 C (19.0 F)
1909
-6.1 C (21.0 F)
1910
-10.6 C (12.9 F)
1911
-10.0 C (14.0 F)
1912
-7.8 C (18.0 F)
1913
-13.3 C (8.1 F)
1914
-6.1 C (21.0 F)
1915
-6.7 C (19.9 F)
1916
-6.1 C (21.0 F)
1917
-5.0 C (23.0 F)
1918
-7.8 C (18.0 F)
1919
-7.2 C (19.0 F)
1920
-5.6 C (21.9 F)
1921
-4.4 C (24.1 F)
1922
-5.6 C (21.9 F)
1923
-11.7 C (10.9 F)
1924
-6.1 C (21.0 F)
1925
-5.6 C (21.9 F)
1926
-6.7 C (19.9 F)
1927
-1.7 C (28.9 F)
1928
-6.1 C (21.0 F)
1929
-5.6 C (21.9 F)
1930
-6.1 C (21.0 F)
1931
-5.0 C (23.0 F)
1932
-7.8 C (18.0 F)
1933
-5.0 C (23.0 F)
1934
-5.6 C (21.9 F)
1935
-9.4 C (15.1 F)
1936
-5.0 C (23.0 F)
1937
-10.0 C (14.0 F)
1938
-6.1 C (21.0 F)
1939
-8.9 C (16.0 F)
1940
-2.2 C (28.0 F)
1941
-5.6 C (21.9 F)
1942
-4.4 C (24.1 F)
1943
-3.9 C (25.0 F)
1944
-6.7 C (19.9 F)
1945
-5.6 C (21.9 F)
1946
-6.7 C (19.9 F)
1947
-10.0 C (14.0 F)
1948
-11.7 C (10.9 F)
1949
-14.4 C (6.1 F)
1950
-6.1 C (21.0 F)
1951
-5.6 C (21.9 F)
1952
-5.6 C (21.9 F)
1953
-8.3 C (17.1 F)
1954
-5.6 C (21.9 F)
1955
-7.8 C (18.0 F)
1956
-11.1 C (12.0 F)
1957
-6.7 C (19.9 F)
1958
-6.7 C (19.9 F)
1959
-4.4 C (24.1 F)
1960
-7.8 C (18.0 F)
1961
-4.4 C (24.1 F)
1982
-5.6 C (21.9 F)
1983
-4.4 C (24.1 F)
1984
-4.4 C (24.1 F)
1985
-9.4 C (15.1 F)
Wettest day (Rx1day)
The wettest day of the year at Bisbee, 1892 to 1985. The record is 108.0 mm (4.3 in) in 1910, marked on the chart; the median year is 47.3 mm (1.9 in).
Wettest day (Rx1day) at Bisbee by year
Year
Wettest day (Rx1day)
1892
5.6 mm (0.22 in)
1893
50.8 mm (2.0 in)
1894
73.7 mm (2.9 in)
1895
34.3 mm (1.4 in)
1896
48.8 mm (1.9 in)
1897
47.5 mm (1.9 in)
1898
50.3 mm (2.0 in)
1899
61.2 mm (2.4 in)
1900
45.7 mm (1.8 in)
1901
29.0 mm (1.1 in)
1902
27.2 mm (1.1 in)
1903
45.7 mm (1.8 in)
1904
55.9 mm (2.2 in)
1905
31.2 mm (1.2 in)
1906
62.5 mm (2.5 in)
1907
35.6 mm (1.4 in)
1908
55.1 mm (2.2 in)
1909
52.8 mm (2.1 in)
1910
108.0 mm (4.3 in)
1911
52.1 mm (2.1 in)
1912
65.3 mm (2.6 in)
1913
43.9 mm (1.7 in)
1914
46.0 mm (1.8 in)
1915
47.0 mm (1.9 in)
1916
43.2 mm (1.7 in)
1917
76.7 mm (3.0 in)
1918
36.6 mm (1.4 in)
1919
69.9 mm (2.8 in)
1920
32.5 mm (1.3 in)
1921
34.5 mm (1.4 in)
1922
48.3 mm (1.9 in)
1923
59.7 mm (2.4 in)
1924
32.5 mm (1.3 in)
1925
50.8 mm (2.0 in)
1926
103.6 mm (4.1 in)
1927
56.6 mm (2.2 in)
1928
51.3 mm (2.0 in)
1929
53.8 mm (2.1 in)
1930
34.3 mm (1.4 in)
1931
61.2 mm (2.4 in)
1932
50.3 mm (2.0 in)
1933
41.9 mm (1.6 in)
1934
39.6 mm (1.6 in)
1935
54.9 mm (2.2 in)
1936
36.8 mm (1.4 in)
1937
50.3 mm (2.0 in)
1938
71.4 mm (2.8 in)
1939
92.2 mm (3.6 in)
1940
34.8 mm (1.4 in)
1941
27.4 mm (1.1 in)
1942
52.8 mm (2.1 in)
1943
60.2 mm (2.4 in)
1944
27.2 mm (1.1 in)
1945
39.4 mm (1.6 in)
1946
31.5 mm (1.2 in)
1947
58.7 mm (2.3 in)
1948
28.2 mm (1.1 in)
1949
28.4 mm (1.1 in)
1950
44.7 mm (1.8 in)
1951
50.8 mm (2.0 in)
1952
38.9 mm (1.5 in)
1953
45.2 mm (1.8 in)
1954
63.5 mm (2.5 in)
1955
37.1 mm (1.5 in)
1956
35.8 mm (1.4 in)
1957
51.1 mm (2.0 in)
1958
40.6 mm (1.6 in)
1959
51.6 mm (2.0 in)
1960
36.8 mm (1.4 in)
1961
11.7 mm (0.5 in)
1982
50.8 mm (2.0 in)
1983
50.0 mm (2.0 in)
1984
46.7 mm (1.8 in)
1985
19.1 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bisbee, 1892 to 1985. The record is 162.5 mm (6.4 in) in 1926, marked on the chart; the median year is 75.2 mm (3.0 in).
Wettest five days (Rx5day) at Bisbee by year
Year
Wettest five days (Rx5day)
1892
5.6 mm (0.22 in)
1893
69.6 mm (2.7 in)
1894
153.2 mm (6.0 in)
1895
65.1 mm (2.6 in)
1896
98.6 mm (3.9 in)
1897
102.8 mm (4.0 in)
1898
130.3 mm (5.1 in)
1899
66.7 mm (2.6 in)
1900
69.8 mm (2.7 in)
1901
51.1 mm (2.0 in)
1902
53.4 mm (2.1 in)
1903
71.3 mm (2.8 in)
1904
71.9 mm (2.8 in)
1905
74.6 mm (2.9 in)
1906
93.0 mm (3.7 in)
1907
74.7 mm (2.9 in)
1908
71.9 mm (2.8 in)
1909
119.9 mm (4.7 in)
1910
117.2 mm (4.6 in)
1911
56.9 mm (2.2 in)
1912
112.6 mm (4.4 in)
1913
74.6 mm (2.9 in)
1914
149.1 mm (5.9 in)
1915
88.4 mm (3.5 in)
1916
80.8 mm (3.2 in)
1917
125.2 mm (4.9 in)
1918
43.0 mm (1.7 in)
1919
91.8 mm (3.6 in)
1920
42.5 mm (1.7 in)
1921
88.8 mm (3.5 in)
1922
82.3 mm (3.2 in)
1923
85.1 mm (3.4 in)
1924
64.2 mm (2.5 in)
1925
109.5 mm (4.3 in)
1926
162.5 mm (6.4 in)
1927
88.4 mm (3.5 in)
1928
81.0 mm (3.2 in)
1929
86.3 mm (3.4 in)
1930
75.9 mm (3.0 in)
1931
101.2 mm (4.0 in)
1932
95.5 mm (3.8 in)
1933
55.9 mm (2.2 in)
1934
63.0 mm (2.5 in)
1935
104.1 mm (4.1 in)
1936
78.2 mm (3.1 in)
1937
81.5 mm (3.2 in)
1938
115.3 mm (4.5 in)
1939
97.0 mm (3.8 in)
1940
49.3 mm (1.9 in)
1941
50.0 mm (2.0 in)
1942
59.4 mm (2.3 in)
1943
80.0 mm (3.1 in)
1944
63.0 mm (2.5 in)
1945
58.1 mm (2.3 in)
1946
57.9 mm (2.3 in)
1947
73.2 mm (2.9 in)
1948
53.8 mm (2.1 in)
1949
62.8 mm (2.5 in)
1950
64.0 mm (2.5 in)
1951
70.1 mm (2.8 in)
1952
50.8 mm (2.0 in)
1953
55.9 mm (2.2 in)
1954
83.9 mm (3.3 in)
1955
116.6 mm (4.6 in)
1956
75.7 mm (3.0 in)
1957
68.1 mm (2.7 in)
1958
50.1 mm (2.0 in)
1959
84.6 mm (3.3 in)
1960
59.2 mm (2.3 in)
1961
18.3 mm (0.7 in)
1982
81.0 mm (3.2 in)
1983
92.3 mm (3.6 in)
1984
95.1 mm (3.7 in)
1985
51.0 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bisbee, 1892 to 1985. The record is 126 days in 1949, marked on the chart; the median year is 60 days.
Longest dry spell (CDD) at Bisbee by year
Year
Longest dry spell (CDD)
1892
14 days
1893
54 days
1894
98 days
1895
68 days
1896
54 days
1897
44 days
1898
74 days
1899
78 days
1900
96 days
1901
46 days
1902
51 days
1903
24 days
1904
77 days
1905
33 days
1906
88 days
1907
37 days
1908
65 days
1909
91 days
1910
54 days
1911
67 days
1912
42 days
1913
55 days
1914
81 days
1915
80 days
1916
35 days
1917
87 days
1918
46 days
1919
33 days
1920
44 days
1921
67 days
1922
52 days
1923
73 days
1924
85 days
1925
35 days
1926
33 days
1927
37 days
1928
57 days
1929
103 days
1930
44 days
1931
36 days
1932
67 days
1933
58 days
1934
46 days
1935
60 days
1936
83 days
1937
85 days
1938
54 days
1939
95 days
1940
43 days
1941
49 days
1942
55 days
1943
63 days
1944
83 days
1945
84 days
1946
68 days
1947
42 days
1948
122 days
1949
126 days
1950
100 days
1951
64 days
1952
48 days
1953
95 days
1954
82 days
1955
55 days
1956
61 days
1957
46 days
1958
51 days
1959
60 days
1960
63 days
1961
100 days
1982
57 days
1983
59 days
1984
61 days
1985
15 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
58 years with a frost
Across 58 years with a frost, the median last spring frost at Bisbee falls on 27 March and the median first autumn frost on 19 November, which leaves a median of 236 days between them.
Fitted over all years, the growing season changes by -1.2 days per decade at this station.
Frost dates and growing season at Bisbee
Measure
Median, all years
Earliest period
Recent period (1930 to 1983)
Recent against earliest
Fitted trend
Last spring frost
27 March
n/a
27 March
n/a
+0.4 days per decade
First autumn frost
19 November
n/a
19 November
n/a
-0.8 days per decade
Growing days
236 days
n/a
230 days
n/a
-1.2 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
64 years, 1893 to 1983
A day with at least 46.3 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 101.4 mm (4.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Bisbee: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
46.3 mm (1.8 in)
5 years
60.5 mm (2.4 in)
10 years
70.2 mm (2.8 in)
25 years
82.6 mm (3.3 in)
50 years
91.9 mm (3.6 in)
100 years
101.4 mm (4.0 in)
Longer than the 64 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, 64 years of values from 1893 to 1983.
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: 108.0 mm (4.3 in) in 1910; 103.6 mm (4.1 in) in 1926; 92.2 mm (3.6 in) in 1939.
Download the Data
Data for Bisbee standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bisbee 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.