Cochise 4 SSE Weather Records (USC00021870)

Record envelope, standing records and threshold days for Cochise 4 SSE (USC00021870), Arizona, United States, with 56 years of record.

Key Facts for Cochise 4 SSE

Cochise 4 SSE (USC00021870) is a weather station in Arizona, United States at 32.06 latitude and -109.89 longitude, 1,274 m (4,180 ft) above sea level.
The station reports from 1899 to 1954, 56 years of record.
1,464 records set at Cochise 4 SSE still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Cochise 4 SSE set a daily record precipitation of 7.1 mm (0.28 in) on 1 September 1954.

About the Station

Location: Arizona, United States, 32.06 latitude, -109.89 longitude.
Elevation: 1,274 m (4,180 ft).
Period of record: 1899 to 1954, 56 years.
Eligible elements: 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 Cochise 4 SSE. 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 Cochise 4 SSE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	26.1 C (79.0 F)	-17.8 C (0.0 F)	n/a	n/a
Feb	26.7 C (80.1 F)	-12.2 C (10.0 F)	n/a	n/a
Mar	31.7 C (89.1 F)	-10.0 C (14.0 F)	n/a	n/a
Apr	33.3 C (91.9 F)	-9.4 C (15.1 F)	n/a	n/a
May	45.6 C (114.1 F)	-1.1 C (30.0 F)	n/a	n/a
Jun	41.1 C (106.0 F)	2.2 C (36.0 F)	n/a	n/a
Jul	42.2 C (108.0 F)	9.4 C (48.9 F)	n/a	n/a
Aug	38.9 C (102.0 F)	8.9 C (48.0 F)	n/a	n/a
Sep	38.3 C (100.9 F)	1.7 C (35.1 F)	n/a	n/a
Oct	34.4 C (93.9 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	31.7 C (89.1 F)	-11.1 C (12.0 F)	n/a	n/a
Dec	24.4 C (75.9 F)	-20.0 C (-4.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Cochise 4 SSE still stand. 1911 holds the most, with 111.

Standing records at Cochise 4 SSE by the year they were set
Year set	Standing records
1908	22
1909	69
1910	92
1911	111
1912	76
1913	102
1914	45
1915	72
1916	69
1917	71
1918	76
1919	52
1920	67
1921	66
1922	64
1923	59
1924	63
1925	25
1943	1
1944	73
1945	60
1946	56
1947	58
1948	15

Wettest Day of Each Month

Sep: 76.2 mm (3.0 in)

The wettest day on record for each calendar month at Cochise 4 SSE. The most was 76.2 mm (3.0 in) on 6 September 1899.

Record daily precipitation for each month at Cochise 4 SSE
Month	Record daily precipitation (mm)	Date
Jan	55.4 mm (2.2 in)	10 January 1905
Feb	55.9 mm (2.2 in)	15 February 1903
Mar	35.6 mm (1.4 in)	31 March 1905
Apr	15.0 mm (0.6 in)	19 April 1951
May	17.8 mm (0.7 in)	10 May 1904
Jun	43.7 mm (1.7 in)	22 June 1950
Jul	72.4 mm (2.9 in)	17 July 1915
Aug	44.5 mm (1.8 in)	22 August 1947
Sep	76.2 mm (3.0 in)	6 September 1899
Oct	41.9 mm (1.6 in)	30 October 1951
Nov	43.4 mm (1.7 in)	22 November 1919
Dec	27.9 mm (1.1 in)	22 December 1914

Period of Record Coverage

1908 to 1948

24 years of record at Cochise 4 SSE, 1908 to 1948. 5 years have data for under 90 percent of days and are left out of rankings: 1908, 1909, 1925, 1943, 1948.

Days with data per year at Cochise 4 SSE
Year	Days with data	Share of year	Complete
1908	153	42%	No
1909	224	61%	No
1910	363	99%	Yes
1911	359	98%	Yes
1912	362	99%	Yes
1913	361	99%	Yes
1914	365	100%	Yes
1915	365	100%	Yes
1916	364	99%	Yes
1917	365	100%	Yes
1918	361	99%	Yes
1919	364	100%	Yes
1920	332	91%	Yes
1921	365	100%	Yes
1922	361	99%	Yes
1923	365	100%	Yes
1924	366	100%	Yes
1925	151	41%	No
1943	31	8%	No
1944	365	100%	Yes
1945	364	100%	Yes
1946	360	99%	Yes
1947	364	100%	Yes
1948	67	18%	No

Latest Records

Latest records at Cochise 4 SSE
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 September 1954	Cochise 4 SSE, US	daily rain	7.1 mm (0.28 in)	4.1 mm (0.16 in)	31 years	17 of 100 (Routine)
3 August 1954	Cochise 4 SSE, US	daily rain	7.6 mm (0.30 in)	1.2 mm (0.05 in)	54 years	20 of 100 (Routine)
30 June 1954	Cochise 4 SSE, US	daily rain	2.3 mm (0.09 in)	0.8 mm (0.03 in)	40 years	17 of 100 (Routine)
25 June 1954	Cochise 4 SSE, US	daily rain	5.6 mm (0.22 in)	2.8 mm (0.11 in)	32 years	16 of 100 (Routine)
18 May 1954	Cochise 4 SSE, US	daily rain	6.6 mm (0.26 in)	6.6 mm (0.26 in)	54 years	20 of 100 (Routine)
22 March 1954	Cochise 4 SSE, US	daily rain	9.9 mm (0.39 in)	4.3 mm (0.17 in)	37 years	20 of 100 (Routine)
20 January 1954	Cochise 4 SSE, US	daily rain	4.3 mm (0.17 in)	1.3 mm (0.05 in)	48 years	20 of 100 (Routine)
29 October 1953	Cochise 4 SSE, US	daily rain	3.0 mm (0.12 in)	0.2 mm (0.01 in)	2 years	5 of 100 (Routine)
12 August 1953	Cochise 4 SSE, US	daily rain	9.7 mm (0.38 in)	2.6 mm (0.10 in)	36 years	18 of 100 (Routine)
6 July 1953	Cochise 4 SSE, US	daily rain	17.5 mm (0.7 in)	15.0 mm (0.6 in)	34 years	20 of 100 (Routine)
12 June 1953	Cochise 4 SSE, US	daily rain	2.8 mm (0.11 in)	1.0 mm (0.04 in)	32 years	14 of 100 (Routine)
11 June 1953	Cochise 4 SSE, US	daily rain	3.0 mm (0.12 in)	1.7 mm (0.07 in)	42 years	18 of 100 (Routine)
7 March 1953	Cochise 4 SSE, US	daily rain	4.1 mm (0.16 in)	0.8 mm (0.03 in)	4 years	7 of 100 (Routine)
3 March 1953	Cochise 4 SSE, US	daily rain	4.6 mm (0.18 in)	2.6 mm (0.10 in)	38 years	20 of 100 (Routine)
14 August 1952	Cochise 4 SSE, US	daily rain	19.8 mm (0.8 in)	7.1 mm (0.28 in)	7 years	14 of 100 (Routine)
6 July 1952	Cochise 4 SSE, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	33 years	3 of 100 (Routine)
3 July 1952	Cochise 4 SSE, US	daily rain	12.2 mm (0.5 in)	2.0 mm (0.08 in)	31 years	15 of 100 (Routine)
2 June 1952	Cochise 4 SSE, US	daily rain	39.1 mm (1.5 in)	36.6 mm (1.4 in)	42 years	57 of 100 (Notable)
20 April 1952	Cochise 4 SSE, US	daily rain	8.6 mm (0.34 in)	3.8 mm (0.15 in)	1 year	15 of 100 (Routine)
11 April 1952	Cochise 4 SSE, US	daily rain	1.0 mm (0.04 in)	1.0 mm (0.04 in)	52 years	20 of 100 (Routine)

Climate Trend

15 complete years, 1911 to 1947

One stripe for each of 15 complete years at Cochise 4 SSE, 1911 to 1947. Blue stripes are years cooler than the station's own mean of 15.5 C (60.0 F); red stripes are warmer. The coolest year was 1944, at 14.8 C (58.7 F), and the warmest was 1911, at 16.4 C (61.6 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Cochise 4 SSE as warming stripes, 1911 to 1947
Year	Annual mean temperature	Difference from the station mean
1911	16.4 C	+0.90 C
1914	15.8 C	+0.21 C
1915	15.0 C	-0.59 C
1916	15.8 C	+0.30 C
1917	15.5 C	-0.09 C
1918	15.8 C	+0.26 C
1919	15.2 C	-0.36 C
1921	16.0 C	+0.46 C
1922	15.5 C	-0.05 C
1923	15.2 C	-0.37 C
1924	16.1 C	+0.54 C
1944	14.8 C	-0.73 C
1945	15.0 C	-0.52 C
1946	15.7 C	+0.12 C
1947	15.5 C	-0.03 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1899 to 1954

Yearly extremes at Cochise 4 SSE: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.6 C (114.1 F)	1912	39.2 C (102.5 F)	24
Coldest night (TNn)	-20.0 C (-4.0 F)	1911	-11.4 C (11.5 F)	24
Wettest day (Rx1day)	76.2 mm (3.0 in)	1899	35.6 mm (1.4 in)	39
Wettest five days (Rx5day)	124.2 mm (4.9 in)	1915	53.4 mm (2.1 in)	39
Longest dry spell (CDD)	285 days	1900	66 days	39

Hottest day (TXx)

The hottest day of the year at Cochise 4 SSE, 1899 to 1954. The record is 45.6 C (114.1 F) in 1912, marked on the chart; the median year is 39.2 C (102.5 F).

Hottest day (TXx) at Cochise 4 SSE by year
Year	Hottest day (TXx)
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	33.9 C (93.0 F)
1909	41.1 C (106.0 F)
1910	40.0 C (104.0 F)
1911	38.3 C (100.9 F)
1912	45.6 C (114.1 F)
1913	42.2 C (108.0 F)
1914	38.9 C (102.0 F)
1915	38.9 C (102.0 F)
1916	38.9 C (102.0 F)
1917	39.4 C (102.9 F)
1918	37.8 C (100.0 F)
1919	39.4 C (102.9 F)
1920	40.0 C (104.0 F)
1921	40.0 C (104.0 F)
1922	38.9 C (102.0 F)
1923	40.0 C (104.0 F)
1924	41.1 C (106.0 F)
1925	36.7 C (98.1 F)
1943	21.1 C (70.0 F)
1944	38.9 C (102.0 F)
1945	40.6 C (105.1 F)
1946	38.9 C (102.0 F)
1947	39.4 C (102.9 F)
1948	25.0 C (77.0 F)
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a

Coldest night (TNn)

The coldest night of the year at Cochise 4 SSE, 1899 to 1954. The record is -20.0 C (-4.0 F) in 1911, marked on the chart; the median year is -11.4 C (11.5 F).

Coldest night (TNn) at Cochise 4 SSE by year
Year	Coldest night (TNn)
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	-8.3 C (17.1 F)
1909	-6.1 C (21.0 F)
1910	-15.0 C (5.0 F)
1911	-20.0 C (-4.0 F)
1912	-12.2 C (10.0 F)
1913	-17.8 C (0.0 F)
1914	-6.7 C (19.9 F)
1915	-10.0 C (14.0 F)
1916	-14.4 C (6.1 F)
1917	-8.9 C (16.0 F)
1918	-9.4 C (15.1 F)
1919	-11.1 C (12.0 F)
1920	-11.7 C (10.9 F)
1921	-11.1 C (12.0 F)
1922	-11.1 C (12.0 F)
1923	-12.2 C (10.0 F)
1924	-10.6 C (12.9 F)
1925	-12.2 C (10.0 F)
1943	-7.2 C (19.0 F)
1944	-12.2 C (10.0 F)
1945	-9.4 C (15.1 F)
1946	-11.7 C (10.9 F)
1947	-13.9 C (7.0 F)
1948	-14.4 C (6.1 F)
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a

Wettest day (Rx1day)

The wettest day of the year at Cochise 4 SSE, 1899 to 1954. The record is 76.2 mm (3.0 in) in 1899, marked on the chart; the median year is 35.6 mm (1.4 in).

Wettest day (Rx1day) at Cochise 4 SSE by year
Year	Wettest day (Rx1day)
1899	76.2 mm (3.0 in)
1900	20.3 mm (0.8 in)
1901	26.7 mm (1.1 in)
1902	31.8 mm (1.3 in)
1903	55.9 mm (2.2 in)
1904	38.1 mm (1.5 in)
1905	55.4 mm (2.2 in)
1906	24.1 mm (0.9 in)
1907	25.4 mm (1.0 in)
1908	35.6 mm (1.4 in)
1909	34.8 mm (1.4 in)
1910	48.8 mm (1.9 in)
1911	50.8 mm (2.0 in)
1912	30.5 mm (1.2 in)
1913	27.4 mm (1.1 in)
1914	41.9 mm (1.6 in)
1915	72.4 mm (2.9 in)
1916	44.2 mm (1.7 in)
1917	33.8 mm (1.3 in)
1918	33.0 mm (1.3 in)
1919	43.4 mm (1.7 in)
1920	15.5 mm (0.6 in)
1921	40.4 mm (1.6 in)
1922	29.0 mm (1.1 in)
1923	31.2 mm (1.2 in)
1924	14.2 mm (0.6 in)
1925	13.2 mm (0.5 in)
1943	7.4 mm (0.29 in)
1944	35.6 mm (1.4 in)
1945	32.3 mm (1.3 in)
1946	33.0 mm (1.3 in)
1947	44.5 mm (1.8 in)
1948	50.3 mm (2.0 in)
1949	50.3 mm (2.0 in)
1950	52.6 mm (2.1 in)
1951	41.9 mm (1.6 in)
1952	39.1 mm (1.5 in)
1953	17.5 mm (0.7 in)
1954	40.9 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cochise 4 SSE, 1899 to 1954. The record is 124.2 mm (4.9 in) in 1915, marked on the chart; the median year is 53.4 mm (2.1 in).

Wettest five days (Rx5day) at Cochise 4 SSE by year
Year	Wettest five days (Rx5day)
1899	86.4 mm (3.4 in)
1900	20.3 mm (0.8 in)
1901	44.5 mm (1.8 in)
1902	38.1 mm (1.5 in)
1903	55.9 mm (2.2 in)
1904	63.5 mm (2.5 in)
1905	55.4 mm (2.2 in)
1906	48.4 mm (1.9 in)
1907	59.8 mm (2.4 in)
1908	63.6 mm (2.5 in)
1909	38.4 mm (1.5 in)
1910	48.8 mm (1.9 in)
1911	50.8 mm (2.0 in)
1912	55.9 mm (2.2 in)
1913	41.1 mm (1.6 in)
1914	68.0 mm (2.7 in)
1915	124.2 mm (4.9 in)
1916	69.4 mm (2.7 in)
1917	68.8 mm (2.7 in)
1918	37.1 mm (1.5 in)
1919	66.6 mm (2.6 in)
1920	27.6 mm (1.1 in)
1921	70.4 mm (2.8 in)
1922	38.4 mm (1.5 in)
1923	67.5 mm (2.7 in)
1924	19.8 mm (0.8 in)
1925	15.5 mm (0.6 in)
1943	8.7 mm (0.34 in)
1944	54.9 mm (2.2 in)
1945	54.2 mm (2.1 in)
1946	35.3 mm (1.4 in)
1947	53.4 mm (2.1 in)
1948	54.8 mm (2.2 in)
1949	66.6 mm (2.6 in)
1950	59.7 mm (2.4 in)
1951	46.0 mm (1.8 in)
1952	39.1 mm (1.5 in)
1953	23.7 mm (0.9 in)
1954	42.9 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cochise 4 SSE, 1899 to 1954. The record is 285 days in 1900, marked on the chart; the median year is 66 days.

Longest dry spell (CDD) at Cochise 4 SSE by year
Year	Longest dry spell (CDD)
1899	114 days
1900	285 days
1901	59 days
1902	68 days
1903	95 days
1904	110 days
1905	33 days
1906	96 days
1907	55 days
1908	64 days
1909	63 days
1910	65 days
1911	40 days
1912	102 days
1913	57 days
1914	62 days
1915	76 days
1916	71 days
1917	102 days
1918	46 days
1919	43 days
1920	47 days
1921	46 days
1922	52 days
1923	70 days
1924	92 days
1925	60 days
1943	16 days
1944	83 days
1945	85 days
1946	68 days
1947	50 days
1948	43 days
1949	66 days
1950	87 days
1951	83 days
1952	48 days
1953	94 days
1954	97 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.

Rainfall Return Levels

35 years, 1899 to 1954

A day with at least 36.4 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 78.4 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Cochise 4 SSE: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	36.4 mm (1.4 in)
5 years	49.2 mm (1.9 in)
10 years	57.0 mm (2.2 in)
25 years	66.2 mm (2.6 in)
50 years	72.5 mm (2.9 in)	Longer than the 35 years of record
100 years	78.4 mm (3.1 in)	Longer than the 35 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, 35 years of values from 1899 to 1954.

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: 76.2 mm (3.0 in) in 1899; 72.4 mm (2.9 in) in 1915; 55.9 mm (2.2 in) in 1903.

Download the Data

Data for Cochise 4 SSE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cochise 4 SSE 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.

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