Tucson Camp Ave Exp Weather Records (USC00028796)

Record envelope, standing records and threshold days for Tucson Camp Ave Exp (USC00028796), Arizona, United States, with 120 years of record.

Key Facts for Tucson Camp Ave Exp

Tucson Camp Ave Exp (USC00028796) is a weather station in Arizona, United States at 32.28 latitude and -110.94 longitude, 710 m (2,330 ft) above sea level.
The station reports from 1893 to 2012, 120 years of record.
1,464 records set at Tucson Camp Ave Exp still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Tucson Camp Ave Exp set a monthly record high maximum temperature of 31.7 C (89.1 F) on 6 December 2012.

About the Station

Location: Arizona, United States, 32.28 latitude, -110.94 longitude.
Elevation: 710 m (2,330 ft).
Period of record: 1893 to 2012, 120 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 Tucson Camp Ave Exp. 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 Tucson Camp Ave Exp, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.2 C (90.0 F)	-12.8 C (9.0 F)	n/a	n/a
Feb	33.3 C (91.9 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	35.6 C (96.1 F)	-8.3 C (17.1 F)	n/a	n/a
Apr	38.3 C (100.9 F)	-1.1 C (30.0 F)	n/a	n/a
May	42.2 C (108.0 F)	-0.6 C (30.9 F)	n/a	n/a
Jun	46.1 C (115.0 F)	6.1 C (43.0 F)	n/a	n/a
Jul	45.6 C (114.1 F)	12.2 C (54.0 F)	n/a	n/a
Aug	43.9 C (111.0 F)	11.1 C (52.0 F)	n/a	n/a
Sep	42.8 C (109.0 F)	3.3 C (37.9 F)	n/a	n/a
Oct	41.1 C (106.0 F)	-3.9 C (25.0 F)	n/a	n/a
Nov	34.4 C (93.9 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	31.7 C (89.1 F)	-11.1 C (12.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tucson Camp Ave Exp still stand. 1950 holds the most, with 55.

Standing records at Tucson Camp Ave Exp by the year they were set
Year set	Standing records
1893	26
1894	13
1895	15
1896	9
1949	46
1950	55
1951	29
1952	26
1953	41
1954	21
1955	47
1956	37
1957	29
1959	19
1960	28
1961	20
1962	42
1963	22
1964	34
1965	40
1966	19
1967	19
1968	11
1969	14
1970	24
1971	37
1972	25
1973	21
1974	15
1975	21
1976	15
1977	9
1978	20
1979	29
1980	20
1981	15
1982	13
1983	22
1984	18
1985	22
1986	17
1987	17
1988	10
1989	13
1990	22
1991	15
1992	14
1993	13
1994	13
1995	12
1996	16
1997	14
1998	14
1999	25
2000	27
2001	19
2002	10
2003	26
2004	18
2005	22
2006	22
2007	21
2008	9
2009	28
2010	19
2011	20
2012	20

All-Time Record Progression

8 new records

8 all-time records were set at Tucson Camp Ave Exp between 28 August 1981 and 3 February 2011. Each dot is a new record.

When Tucson Camp Ave Exp set new all-time records
Date	Kind	Detail
1981-08-28	Record high minimum temperature	Record high minimum temperature 29.4 C (84.9 F)
1982-08-31	Record daily precipitation	Record daily precipitation 92.7 mm (3.6 in)
1990-02-15	Record snow depth	Record snow depth 2.5 cm (1.0 in)
1990-06-26	Record high maximum temperature	Record high maximum temperature 46.1 C (115.0 F)
1994-06-28	Record high minimum temperature	Record high minimum temperature 30.0 C (86.0 F)
2005-07-18	Record high minimum temperature	Record high minimum temperature 31.1 C (88.0 F)
2006-07-22	Record high minimum temperature	Record high minimum temperature 32.2 C (90.0 F)
2011-02-03	Record low maximum temperature	Record low maximum temperature 3.3 C (37.9 F)

Wettest Day of Each Month

Aug: 92.7 mm (3.6 in)

The wettest day on record for each calendar month at Tucson Camp Ave Exp. The most was 92.7 mm (3.6 in) on 31 August 1982.

Record daily precipitation for each month at Tucson Camp Ave Exp
Month	Record daily precipitation (mm)	Date
Jan	35.8 mm (1.4 in)	8 January 1993
Feb	32.8 mm (1.3 in)	10 February 1963
Mar	28.4 mm (1.1 in)	10 March 1968
Apr	43.2 mm (1.7 in)	20 April 1952
May	20.8 mm (0.8 in)	6 May 1978
Jun	63.0 mm (2.5 in)	22 June 1950
Jul	55.9 mm (2.2 in)	23 July 1955
Aug	92.7 mm (3.6 in)	31 August 1982
Sep	74.2 mm (2.9 in)	26 September 1962
Oct	87.6 mm (3.4 in)	2 October 1983
Nov	38.4 mm (1.5 in)	11 November 1994
Dec	49.3 mm (1.9 in)	15 December 1967

Period of Record Coverage

1893 to 2012

67 years of record at Tucson Camp Ave Exp, 1893 to 2012. 19 years have data for under 90 percent of days and are left out of rankings: 1894, 1895, 1896, 1949, 1989, 1990, 1991, 1992 and others.

Days with data per year at Tucson Camp Ave Exp
Year	Days with data	Share of year	Complete
1893	364	100%	Yes
1894	181	50%	No
1895	121	33%	No
1896	119	33%	No
1949	324	89%	No
1950	365	100%	Yes
1951	364	100%	Yes
1952	366	100%	Yes
1953	359	98%	Yes
1954	359	98%	Yes
1955	354	97%	Yes
1956	355	97%	Yes
1957	355	97%	Yes
1959	352	96%	Yes
1960	363	99%	Yes
1961	365	100%	Yes
1962	363	99%	Yes
1963	331	91%	Yes
1964	366	100%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	366	100%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	360	98%	Yes
1973	361	99%	Yes
1974	363	99%	Yes
1975	362	99%	Yes
1976	363	99%	Yes
1977	364	100%	Yes
1978	364	100%	Yes
1979	360	99%	Yes
1980	361	99%	Yes
1981	365	100%	Yes
1982	364	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	363	99%	Yes
1986	332	91%	Yes
1987	364	100%	Yes
1988	362	99%	Yes
1989	327	90%	No
1990	323	88%	No
1991	314	86%	No
1992	306	84%	No
1993	323	88%	No
1994	316	87%	No
1995	312	85%	No
1996	304	83%	No
1997	311	85%	No
1998	339	93%	Yes
1999	352	96%	Yes
2000	343	94%	Yes
2001	319	87%	No
2002	328	90%	No
2003	282	77%	No
2004	301	82%	No
2005	351	96%	Yes
2006	327	90%	No
2007	360	99%	Yes
2008	306	84%	No
2009	365	100%	Yes
2010	359	98%	Yes
2011	363	99%	Yes
2012	364	99%	Yes

Latest Records

Latest records at Tucson Camp Ave Exp
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 December 2012	Tucson Camp Ave Exp, US	monthly high max	31.7 C (89.1 F)	0.6 C (1.1 F)	58 years	38 of 100 (Notable)
5 December 2012	Tucson Camp Ave Exp, US	daily high max (Tie)	27.8 C (82.0 F)	tie	47 years	6 of 100 (Routine)
2 December 2012	Tucson Camp Ave Exp, US	daily high max (Tie)	27.8 C (82.0 F)	tie	32 years	4 of 100 (Routine)
18 November 2012	Tucson Camp Ave Exp, US	daily high min	12.8 C (55.0 F)	1.1 C (2.0 F)	26 years	19 of 100 (Routine)
11 November 2012	Tucson Camp Ave Exp, US	daily low max	16.1 C (61.0 F)	1.7 C (3.1 F)	118 years	43 of 100 (Notable)
8 November 2012	Tucson Camp Ave Exp, US	daily high max	33.3 C (91.9 F)	0.5 C (0.9 F)	7 years	13 of 100 (Routine)
11 September 2012	Tucson Camp Ave Exp, US	daily low max	29.4 C (84.9 F)	1.2 C (2.2 F)	16 years	18 of 100 (Routine)
7 September 2012	Tucson Camp Ave Exp, US	daily low max	30.0 C (86.0 F)	1.1 C (2.0 F)	42 years	25 of 100 (Routine)
27 August 2012	Tucson Camp Ave Exp, US	daily high min	26.7 C (80.1 F)	1.1 C (2.0 F)	45 years	27 of 100 (Routine)
17 August 2012	Tucson Camp Ave Exp, US	daily low max	31.1 C (88.0 F)	0.6 C (1.1 F)	15 years	16 of 100 (Routine)
14 August 2012	Tucson Camp Ave Exp, US	daily high max	42.2 C (108.0 F)	0.5 C (0.9 F)	59 years	28 of 100 (Routine)
13 August 2012	Tucson Camp Ave Exp, US	monthly high max (Tie)	43.9 C (111.0 F)	tie	0 years	5 of 100 (Routine)
12 August 2012	Tucson Camp Ave Exp, US	monthly high max	43.9 C (111.0 F)	0.6 C (1.1 F)	50 years	37 of 100 (Notable)
4 July 2012	Tucson Camp Ave Exp, US	daily low max	33.3 C (91.9 F)	0.6 C (1.1 F)	50 years	27 of 100 (Routine)
26 June 2012	Tucson Camp Ave Exp, US	daily high min	27.8 C (82.0 F)	1.1 C (2.0 F)	10 years	15 of 100 (Routine)
1 June 2012	Tucson Camp Ave Exp, US	daily high max (Tie)	41.7 C (107.1 F)	tie	35 years	5 of 100 (Routine)
25 May 2012	Tucson Camp Ave Exp, US	daily high min	21.7 C (71.1 F)	0.6 C (1.1 F)	7 years	13 of 100 (Routine)
21 May 2012	Tucson Camp Ave Exp, US	daily high max (Tie)	41.1 C (106.0 F)	tie	7 years	3 of 100 (Routine)
16 May 2012	Tucson Camp Ave Exp, US	daily high max (Tie)	38.9 C (102.0 F)	tie	118 years	10 of 100 (Routine)
16 May 2012	Tucson Camp Ave Exp, US	daily high min (Tie)	23.3 C (73.9 F)	tie	3 years	2 of 100 (Routine)

Climate Trend

57 complete years, 1893 to 2012

One stripe for each of 57 complete years at Tucson Camp Ave Exp, 1893 to 2012. Blue stripes are years cooler than the station's own mean of 19.7 C (67.5 F); red stripes are warmer. The coolest year was 1964, at 17.9 C (64.2 F), and the warmest was 2012, at 21.4 C (70.6 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Tucson Camp Ave Exp as warming stripes, 1893 to 2012
Year	Annual mean temperature	Difference from the station mean
1893	20.2 C	+0.41 C
1950	19.2 C	-0.51 C
1951	19.1 C	-0.69 C
1952	18.8 C	-0.96 C
1953	18.9 C	-0.89 C
1954	20.0 C	+0.21 C
1955	18.8 C	-0.95 C
1956	19.4 C	-0.36 C
1957	19.8 C	+0.03 C
1959	19.7 C	-0.03 C
1960	19.3 C	-0.42 C
1961	19.2 C	-0.54 C
1962	19.1 C	-0.63 C
1964	17.9 C	-1.85 C
1965	18.9 C	-0.88 C
1966	19.2 C	-0.51 C
1967	19.0 C	-0.73 C
1968	19.0 C	-0.75 C
1969	19.5 C	-0.27 C
1970	18.7 C	-1.02 C
1971	18.4 C	-1.40 C
1972	18.7 C	-1.01 C
1973	18.6 C	-1.16 C
1974	19.3 C	-0.49 C
1975	18.9 C	-0.83 C
1976	19.6 C	-0.19 C
1977	20.1 C	+0.31 C
1978	20.2 C	+0.44 C
1979	19.4 C	-0.37 C
1980	20.1 C	+0.35 C
1981	20.8 C	+1.08 C
1982	19.2 C	-0.54 C
1983	19.3 C	-0.50 C
1984	19.1 C	-0.61 C
1985	19.5 C	-0.27 C
1987	19.4 C	-0.34 C
1988	19.5 C	-0.29 C
1989	19.0 C	-0.77 C
1990	19.5 C	-0.27 C
1991	19.9 C	+0.13 C
1993	20.2 C	+0.48 C
1995	20.4 C	+0.66 C
1996	20.8 C	+1.08 C
1997	20.5 C	+0.75 C
1998	19.9 C	+0.15 C
1999	21.0 C	+1.24 C
2000	21.1 C	+1.38 C
2001	21.0 C	+1.23 C
2002	21.0 C	+1.29 C
2004	20.5 C	+0.73 C
2005	21.1 C	+1.37 C
2007	21.2 C	+1.41 C
2008	20.7 C	+0.91 C
2009	21.3 C	+1.52 C
2010	20.8 C	+1.05 C
2011	20.6 C	+0.89 C
2012	21.4 C	+1.67 C

The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1893 to 2012. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 57 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Tucson Camp Ave Exp
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.2 to 0.3) per decade	0.4 F (0.3 to 0.6) per decade	1893 to 2012	57	Rise
Mean daily maximum	0.11 C (0.02 to 0.19) per decade	0.19 F (0.04 to 0.35) per decade	1893 to 2012	57	Rise
Mean daily minimum	0.4 C (0.3 to 0.5) per decade	0.7 F (0.5 to 0.9) per decade	1893 to 2012	57	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

1893 to 2012

Yearly extremes at Tucson Camp Ave Exp: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.1 C (115.0 F)	1990	43.3 C (109.9 F)	67
Coldest night (TNn)	-12.8 C (9.0 F)	1950	-6.7 C (19.9 F)	67
Wettest day (Rx1day)	92.7 mm (3.6 in)	1982	34.3 mm (1.4 in)	67
Wettest five days (Rx5day)	184.9 mm (7.3 in)	1983	56.1 mm (2.2 in)	67
Longest dry spell (CDD)	154 days	1959	74 days	67

Hottest day (TXx)

The hottest day of the year at Tucson Camp Ave Exp, 1893 to 2012. The record is 46.1 C (115.0 F) in 1990, marked on the chart; the median year is 43.3 C (109.9 F).

Hottest day (TXx) at Tucson Camp Ave Exp by year
Year	Hottest day (TXx)
1893	42.8 C (109.0 F)
1894	41.7 C (107.1 F)
1895	41.1 C (106.0 F)
1896	32.8 C (91.0 F)
1949	41.7 C (107.1 F)
1950	42.8 C (109.0 F)
1951	42.8 C (109.0 F)
1952	43.3 C (109.9 F)
1953	44.4 C (111.9 F)
1954	43.9 C (111.0 F)
1955	43.9 C (111.0 F)
1956	43.3 C (109.9 F)
1957	44.4 C (111.9 F)
1959	43.3 C (109.9 F)
1960	45.0 C (113.0 F)
1961	45.6 C (114.1 F)
1962	43.3 C (109.9 F)
1963	40.6 C (105.1 F)
1964	41.7 C (107.1 F)
1965	41.7 C (107.1 F)
1966	42.8 C (109.0 F)
1967	42.2 C (108.0 F)
1968	43.9 C (111.0 F)
1969	43.3 C (109.9 F)
1970	45.6 C (114.1 F)
1971	43.3 C (109.9 F)
1972	43.3 C (109.9 F)
1973	43.3 C (109.9 F)
1974	45.0 C (113.0 F)
1975	43.3 C (109.9 F)
1976	43.9 C (111.0 F)
1977	43.3 C (109.9 F)
1978	43.9 C (111.0 F)
1979	43.9 C (111.0 F)
1980	43.9 C (111.0 F)
1981	42.8 C (109.0 F)
1982	42.2 C (108.0 F)
1983	45.0 C (113.0 F)
1984	41.7 C (107.1 F)
1985	43.9 C (111.0 F)
1986	43.3 C (109.9 F)
1987	41.7 C (107.1 F)
1988	43.3 C (109.9 F)
1989	41.7 C (107.1 F)
1990	46.1 C (115.0 F)
1991	41.7 C (107.1 F)
1992	42.8 C (109.0 F)
1993	43.3 C (109.9 F)
1994	45.0 C (113.0 F)
1995	45.6 C (114.1 F)
1996	42.2 C (108.0 F)
1997	42.8 C (109.0 F)
1998	43.3 C (109.9 F)
1999	42.8 C (109.0 F)
2000	42.8 C (109.0 F)
2001	44.4 C (111.9 F)
2002	43.3 C (109.9 F)
2003	43.9 C (111.0 F)
2004	42.8 C (109.0 F)
2005	43.9 C (111.0 F)
2006	43.9 C (111.0 F)
2007	43.3 C (109.9 F)
2008	42.8 C (109.0 F)
2009	42.2 C (108.0 F)
2010	42.2 C (108.0 F)
2011	44.4 C (111.9 F)
2012	43.9 C (111.0 F)

Coldest night (TNn)

The coldest night of the year at Tucson Camp Ave Exp, 1893 to 2012. The record is -12.8 C (9.0 F) in 1950, marked on the chart; the median year is -6.7 C (19.9 F).

Coldest night (TNn) at Tucson Camp Ave Exp by year
Year	Coldest night (TNn)
1893	-4.4 C (24.1 F)
1894	-6.7 C (19.9 F)
1895	-8.9 C (16.0 F)
1896	-6.1 C (21.0 F)
1949	-8.3 C (17.1 F)
1950	-12.8 C (9.0 F)
1951	-7.2 C (19.0 F)
1952	-7.2 C (19.0 F)
1953	-9.4 C (15.1 F)
1954	-9.4 C (15.1 F)
1955	-8.9 C (16.0 F)
1956	-7.2 C (19.0 F)
1957	-6.1 C (21.0 F)
1959	-6.1 C (21.0 F)
1960	-8.9 C (16.0 F)
1961	-5.6 C (21.9 F)
1962	-9.4 C (15.1 F)
1963	-9.4 C (15.1 F)
1964	-11.7 C (10.9 F)
1965	-8.3 C (17.1 F)
1966	-8.3 C (17.1 F)
1967	-10.0 C (14.0 F)
1968	-8.3 C (17.1 F)
1969	-6.1 C (21.0 F)
1970	-7.8 C (18.0 F)
1971	-11.7 C (10.9 F)
1972	-9.4 C (15.1 F)
1973	-6.7 C (19.9 F)
1974	-11.1 C (12.0 F)
1975	-7.2 C (19.0 F)
1976	-7.2 C (19.0 F)
1977	-6.7 C (19.9 F)
1978	-9.4 C (15.1 F)
1979	-6.7 C (19.9 F)
1980	-5.0 C (23.0 F)
1981	-4.4 C (24.1 F)
1982	-2.8 C (27.0 F)
1983	-3.3 C (26.1 F)
1984	-3.9 C (25.0 F)
1985	-5.6 C (21.9 F)
1986	-4.4 C (24.1 F)
1987	-6.1 C (21.0 F)
1988	-10.0 C (14.0 F)
1989	-7.2 C (19.0 F)
1990	-7.8 C (18.0 F)
1991	-3.9 C (25.0 F)
1992	-3.3 C (26.1 F)
1993	-3.9 C (25.0 F)
1994	-4.4 C (24.1 F)
1995	-3.3 C (26.1 F)
1996	-6.7 C (19.9 F)
1997	-4.4 C (24.1 F)
1998	-4.4 C (24.1 F)
1999	-4.4 C (24.1 F)
2000	-3.9 C (25.0 F)
2001	-4.4 C (24.1 F)
2002	-6.1 C (21.0 F)
2003	-3.3 C (26.1 F)
2004	-6.7 C (19.9 F)
2005	-5.0 C (23.0 F)
2006	-5.0 C (23.0 F)
2007	-7.8 C (18.0 F)
2008	-3.9 C (25.0 F)
2009	-3.9 C (25.0 F)
2010	-5.6 C (21.9 F)
2011	-7.8 C (18.0 F)
2012	-2.8 C (27.0 F)

Wettest day (Rx1day)

The wettest day of the year at Tucson Camp Ave Exp, 1893 to 2012. The record is 92.7 mm (3.6 in) in 1982, marked on the chart; the median year is 34.3 mm (1.4 in).

Wettest day (Rx1day) at Tucson Camp Ave Exp by year
Year	Wettest day (Rx1day)
1893	26.4 mm (1.0 in)
1894	16.8 mm (0.7 in)
1895	52.3 mm (2.1 in)
1896	11.7 mm (0.5 in)
1949	17.0 mm (0.7 in)
1950	63.0 mm (2.5 in)
1951	53.8 mm (2.1 in)
1952	43.2 mm (1.7 in)
1953	39.9 mm (1.6 in)
1954	47.5 mm (1.9 in)
1955	55.9 mm (2.2 in)
1956	19.3 mm (0.8 in)
1957	23.1 mm (0.9 in)
1959	36.1 mm (1.4 in)
1960	33.8 mm (1.3 in)
1961	47.5 mm (1.9 in)
1962	74.2 mm (2.9 in)
1963	32.8 mm (1.3 in)
1964	53.3 mm (2.1 in)
1965	44.5 mm (1.8 in)
1966	38.1 mm (1.5 in)
1967	49.3 mm (1.9 in)
1968	29.7 mm (1.2 in)
1969	21.6 mm (0.9 in)
1970	34.3 mm (1.4 in)
1971	35.8 mm (1.4 in)
1972	36.1 mm (1.4 in)
1973	17.8 mm (0.7 in)
1974	58.4 mm (2.3 in)
1975	29.5 mm (1.2 in)
1976	24.4 mm (1.0 in)
1977	31.8 mm (1.3 in)
1978	44.5 mm (1.8 in)
1979	27.9 mm (1.1 in)
1980	28.2 mm (1.1 in)
1981	28.7 mm (1.1 in)
1982	92.7 mm (3.6 in)
1983	87.6 mm (3.4 in)
1984	33.0 mm (1.3 in)
1985	19.1 mm (0.8 in)
1986	23.9 mm (0.9 in)
1987	27.7 mm (1.1 in)
1988	35.1 mm (1.4 in)
1989	27.7 mm (1.1 in)
1990	39.4 mm (1.6 in)
1991	30.7 mm (1.2 in)
1992	43.7 mm (1.7 in)
1993	35.8 mm (1.4 in)
1994	38.4 mm (1.5 in)
1995	27.2 mm (1.1 in)
1996	48.8 mm (1.9 in)
1997	24.4 mm (1.0 in)
1998	27.9 mm (1.1 in)
1999	38.6 mm (1.5 in)
2000	51.1 mm (2.0 in)
2001	30.5 mm (1.2 in)
2002	52.1 mm (2.1 in)
2003	29.0 mm (1.1 in)
2004	19.1 mm (0.8 in)
2005	32.3 mm (1.3 in)
2006	40.4 mm (1.6 in)
2007	39.4 mm (1.6 in)
2008	46.7 mm (1.8 in)
2009	27.7 mm (1.1 in)
2010	31.5 mm (1.2 in)
2011	37.8 mm (1.5 in)
2012	20.6 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tucson Camp Ave Exp, 1893 to 2012. The record is 184.9 mm (7.3 in) in 1983, marked on the chart; the median year is 56.1 mm (2.2 in).

Wettest five days (Rx5day) at Tucson Camp Ave Exp by year
Year	Wettest five days (Rx5day)
1893	58.5 mm (2.3 in)
1894	18.1 mm (0.7 in)
1895	75.2 mm (3.0 in)
1896	13.5 mm (0.5 in)
1949	29.2 mm (1.1 in)
1950	66.8 mm (2.6 in)
1951	59.1 mm (2.3 in)
1952	49.5 mm (1.9 in)
1953	65.7 mm (2.6 in)
1954	59.9 mm (2.4 in)
1955	70.7 mm (2.8 in)
1956	23.9 mm (0.9 in)
1957	31.5 mm (1.2 in)
1959	68.3 mm (2.7 in)
1960	49.2 mm (1.9 in)
1961	47.8 mm (1.9 in)
1962	74.7 mm (2.9 in)
1963	60.2 mm (2.4 in)
1964	58.2 mm (2.3 in)
1965	75.3 mm (3.0 in)
1966	77.7 mm (3.1 in)
1967	82.3 mm (3.2 in)
1968	57.9 mm (2.3 in)
1969	24.7 mm (1.0 in)
1970	75.5 mm (3.0 in)
1971	70.3 mm (2.8 in)
1972	59.9 mm (2.4 in)
1973	36.6 mm (1.4 in)
1974	72.4 mm (2.9 in)
1975	30.8 mm (1.2 in)
1976	31.2 mm (1.2 in)
1977	68.9 mm (2.7 in)
1978	54.2 mm (2.1 in)
1979	50.1 mm (2.0 in)
1980	53.4 mm (2.1 in)
1981	38.4 mm (1.5 in)
1982	94.2 mm (3.7 in)
1983	184.9 mm (7.3 in)
1984	64.5 mm (2.5 in)
1985	46.5 mm (1.8 in)
1986	35.8 mm (1.4 in)
1987	53.1 mm (2.1 in)
1988	48.1 mm (1.9 in)
1989	48.3 mm (1.9 in)
1990	64.0 mm (2.5 in)
1991	34.8 mm (1.4 in)
1992	56.2 mm (2.2 in)
1993	89.2 mm (3.5 in)
1994	52.6 mm (2.1 in)
1995	39.9 mm (1.6 in)
1996	57.7 mm (2.3 in)
1997	31.7 mm (1.2 in)
1998	59.5 mm (2.3 in)
1999	73.4 mm (2.9 in)
2000	54.4 mm (2.1 in)
2001	33.8 mm (1.3 in)
2002	58.9 mm (2.3 in)
2003	56.1 mm (2.2 in)
2004	29.5 mm (1.2 in)
2005	60.2 mm (2.4 in)
2006	66.3 mm (2.6 in)
2007	50.8 mm (2.0 in)
2008	51.1 mm (2.0 in)
2009	36.1 mm (1.4 in)
2010	58.2 mm (2.3 in)
2011	49.2 mm (1.9 in)
2012	20.6 mm (0.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tucson Camp Ave Exp, 1893 to 2012. The record is 154 days in 1959, marked on the chart; the median year is 74 days.

Longest dry spell (CDD) at Tucson Camp Ave Exp by year
Year	Longest dry spell (CDD)
1893	52 days
1894	55 days
1895	31 days
1896	56 days
1949	75 days
1950	103 days
1951	71 days
1952	48 days
1953	117 days
1954	63 days
1955	78 days
1956	76 days
1957	40 days
1959	154 days
1960	100 days
1961	113 days
1962	122 days
1963	65 days
1964	99 days
1965	73 days
1966	63 days
1967	49 days
1968	66 days
1969	58 days
1970	79 days
1971	87 days
1972	149 days
1973	87 days
1974	102 days
1975	75 days
1976	41 days
1977	45 days
1978	51 days
1979	65 days
1980	51 days
1981	58 days
1982	62 days
1983	86 days
1984	90 days
1985	68 days
1986	45 days
1987	56 days
1988	87 days
1989	115 days
1990	45 days
1991	77 days
1992	74 days
1993	46 days
1994	38 days
1995	83 days
1996	70 days
1997	67 days
1998	70 days
1999	98 days
2000	80 days
2001	63 days
2002	124 days
2003	43 days
2004	75 days
2005	82 days
2006	79 days
2007	72 days
2008	100 days
2009	85 days
2010	118 days
2011	84 days
2012	112 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

57 years with a frost

Across 57 years with a frost, the median last spring frost at Tucson Camp Ave Exp falls on 18 March and the median first autumn frost on 20 November, which leaves a median of 242 days between them.

Fitted over all years, the growing season changes by +5.3 days per decade at this station.

Frost dates and growing season at Tucson Camp Ave Exp
Measure	Median, all years	Earliest period	Recent period (1978 to 2012)	Recent against earliest	Fitted trend
Last spring frost	18 March	n/a	4 March	n/a	-3.7 days per decade
First autumn frost	20 November	n/a	26 November	n/a	+1.5 days per decade
Growing days	242 days	n/a	267 days	n/a	+5.3 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

63 years, 1893 to 2012

A day with at least 34.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 92.2 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Tucson Camp Ave Exp: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	34.6 mm (1.4 in)
5 years	47.3 mm (1.9 in)
10 years	56.7 mm (2.2 in)
25 years	69.8 mm (2.7 in)
50 years	80.6 mm (3.2 in)
100 years	92.2 mm (3.6 in)	Longer than the 63 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, 63 years of values from 1893 to 2012.

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: 92.7 mm (3.6 in) in 1982; 87.6 mm (3.4 in) in 1983; 74.2 mm (2.9 in) in 1962.

Station Changes

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

Download the Data

Data for Tucson Camp Ave Exp standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tucson Camp Ave Exp 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).