Alhambra Weather Records (USC00020104)

Record envelope, standing records and threshold days for Alhambra (USC00020104), Arizona, United States, with 31 years of record.

Key Facts for Alhambra

Alhambra (USC00020104) is a weather station in Arizona, United States at 33.52 latitude and -112.12 longitude, 348 m (1,142 ft) above sea level.
The station reports from 1946 to 1976, 31 years of record.
1,464 records set at Alhambra still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Alhambra set a daily record low maximum temperature of 29.4 C (84.9 F) on 26 September 1976.

About the Station

Location: Arizona, United States, 33.52 latitude, -112.12 longitude.
Elevation: 348 m (1,142 ft).
Period of record: 1946 to 1976, 31 years.
Eligible elements: tmax, tmin, prcp.

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 Alhambra. 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 Alhambra, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.1 C (88.0 F)	-9.4 C (15.1 F)	n/a	n/a
Feb	33.3 C (91.9 F)	-7.2 C (19.0 F)	n/a	n/a
Mar	36.1 C (97.0 F)	-4.4 C (24.1 F)	n/a	n/a
Apr	38.9 C (102.0 F)	-0.6 C (30.9 F)	n/a	n/a
May	45.0 C (113.0 F)	3.3 C (37.9 F)	n/a	n/a
Jun	46.7 C (116.1 F)	7.2 C (45.0 F)	n/a	n/a
Jul	47.2 C (117.0 F)	14.4 C (57.9 F)	n/a	n/a
Aug	46.1 C (115.0 F)	12.2 C (54.0 F)	n/a	n/a
Sep	46.1 C (115.0 F)	8.9 C (48.0 F)	n/a	n/a
Oct	40.6 C (105.1 F)	-1.1 C (30.0 F)	n/a	n/a
Nov	33.9 C (93.0 F)	-3.9 C (25.0 F)	n/a	n/a
Dec	30.6 C (87.1 F)	-6.7 C (19.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Alhambra still stand. 1949 holds the most, with 95.

Standing records at Alhambra by the year they were set
Year set	Standing records
1946	62
1947	57
1948	66
1949	95
1950	65
1951	47
1952	45
1953	53
1954	38
1955	85
1956	55
1957	49
1958	46
1959	37
1960	46
1961	26
1962	59
1963	36
1964	34
1965	57
1966	35
1967	43
1968	36
1969	41
1970	23
1971	57
1972	52
1973	26
1974	21
1975	38
1976	34

Wettest Day of Each Month

Sep: 69.6 mm (2.7 in)

The wettest day on record for each calendar month at Alhambra. The most was 69.6 mm (2.7 in) on 13 September 1966.

Record daily precipitation for each month at Alhambra
Month	Record daily precipitation (mm)	Date
Jan	41.4 mm (1.6 in)	30 January 1951
Feb	32.5 mm (1.3 in)	6 February 1965
Mar	27.4 mm (1.1 in)	9 March 1968
Apr	22.9 mm (0.9 in)	4 April 1965
May	24.9 mm (1.0 in)	31 May 1973
Jun	28.2 mm (1.1 in)	22 June 1972
Jul	36.8 mm (1.4 in)	24 July 1955
Aug	51.8 mm (2.0 in)	16 August 1963
Sep	69.6 mm (2.7 in)	13 September 1966
Oct	41.1 mm (1.6 in)	19 October 1972
Nov	25.9 mm (1.0 in)	19 November 1973
Dec	41.7 mm (1.6 in)	15 December 1967

Period of Record Coverage

1946 to 1976

31 years of record at Alhambra, 1946 to 1976. 2 years have data for under 90 percent of days and are left out of rankings: 1954, 1976.

Days with data per year at Alhambra
Year	Days with data	Share of year	Complete
1946	359	98%	Yes
1947	359	98%	Yes
1948	364	99%	Yes
1949	364	100%	Yes
1950	365	100%	Yes
1951	363	99%	Yes
1952	366	100%	Yes
1953	360	99%	Yes
1954	275	75%	No
1955	358	98%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	365	100%	Yes
1961	363	99%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	364	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	274	75%	No

Latest Records

Latest records at Alhambra
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 September 1976	Alhambra, US	daily low max	29.4 C (84.9 F)	1.2 C (2.2 F)	14 years	10 of 100 (Routine)
24 September 1976	Alhambra, US	daily low max	26.7 C (80.1 F)	3.3 C (5.9 F)	18 years	17 of 100 (Routine)
24 September 1976	Alhambra, US	daily rain	15.0 mm (0.6 in)	9.9 mm (0.39 in)	22 years	16 of 100 (Routine)
23 September 1976	Alhambra, US	daily rain	19.6 mm (0.8 in)	9.2 mm (0.36 in)	18 years	15 of 100 (Routine)
10 September 1976	Alhambra, US	daily low max	33.3 C (91.9 F)	1.7 C (3.1 F)	15 years	12 of 100 (Routine)
9 September 1976	Alhambra, US	daily low max	32.2 C (90.0 F)	2.8 C (5.0 F)	12 years	14 of 100 (Routine)
9 September 1976	Alhambra, US	daily high min (Tie)	25.6 C (78.1 F)	tie	5 years	1 of 100 (Routine)
25 August 1976	Alhambra, US	daily high min (Tie)	26.7 C (80.1 F)	tie	23 years	2 of 100 (Routine)
22 August 1976	Alhambra, US	daily high min	26.1 C (79.0 F)	0.5 C (0.9 F)	7 years	6 of 100 (Routine)
17 August 1976	Alhambra, US	daily low max (Tie)	35.6 C (96.1 F)	tie	18 years	2 of 100 (Routine)
15 August 1976	Alhambra, US	daily low min	12.8 C (55.0 F)	2.8 C (5.0 F)	27 years	21 of 100 (Routine)
15 August 1976	Alhambra, US	daily low max (Tie)	35.6 C (96.1 F)	tie	5 years	1 of 100 (Routine)
8 August 1976	Alhambra, US	daily rain	1.5 mm (0.06 in)	1.5 mm (0.06 in)	30 years	13 of 100 (Routine)
6 August 1976	Alhambra, US	daily low min	16.7 C (62.1 F)	1.6 C (2.9 F)	23 years	14 of 100 (Routine)
5 August 1976	Alhambra, US	daily low min	15.6 C (60.1 F)	1.6 C (2.9 F)	20 years	14 of 100 (Routine)
10 July 1976	Alhambra, US	daily high min (Tie)	28.9 C (84.0 F)	tie	3 years	0 of 100 (Routine)
9 July 1976	Alhambra, US	daily high min	27.8 C (82.0 F)	0.6 C (1.1 F)	30 years	14 of 100 (Routine)
7 July 1976	Alhambra, US	daily high max (Tie)	44.4 C (111.9 F)	tie	18 years	2 of 100 (Routine)
5 July 1976	Alhambra, US	daily high max (Tie)	43.9 C (111.0 F)	tie	11 years	1 of 100 (Routine)
1 July 1976	Alhambra, US	daily high min	26.7 C (80.1 F)	1.7 C (3.1 F)	28 years	17 of 100 (Routine)

Climate Trend

29 complete years, 1946 to 1975

One stripe for each of 29 complete years at Alhambra, 1946 to 1975. Blue stripes are years cooler than the station's own mean of 20.7 C (69.3 F); red stripes are warmer. The coolest year was 1964, at 20.0 C (68.0 F), and the warmest was 1969, at 21.4 C (70.6 F). The strongest colour marks a difference of 0.8 C (1.4 F).

Annual mean temperature at Alhambra as warming stripes, 1946 to 1975
Year	Annual mean temperature	Difference from the station mean
1946	20.1 C	-0.64 C
1947	20.3 C	-0.43 C
1948	20.2 C	-0.51 C
1949	20.2 C	-0.54 C
1950	21.1 C	+0.35 C
1951	20.4 C	-0.35 C
1952	20.3 C	-0.46 C
1953	20.6 C	-0.15 C
1955	20.2 C	-0.52 C
1956	20.5 C	-0.26 C
1957	20.8 C	+0.09 C
1958	21.4 C	+0.67 C
1959	21.4 C	+0.61 C
1960	21.0 C	+0.28 C
1961	21.1 C	+0.38 C
1962	21.3 C	+0.60 C
1963	21.3 C	+0.57 C
1964	20.0 C	-0.73 C
1965	20.3 C	-0.41 C
1966	21.2 C	+0.44 C
1967	21.2 C	+0.49 C
1968	20.9 C	+0.12 C
1969	21.4 C	+0.69 C
1970	20.9 C	+0.18 C
1971	20.3 C	-0.43 C
1972	21.1 C	+0.31 C
1973	20.6 C	-0.12 C
1974	21.2 C	+0.44 C
1975	20.0 C	-0.72 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

1946 to 1976

Yearly extremes at Alhambra: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.2 C (117.0 F)	1958	45.0 C (113.0 F)	31
Coldest night (TNn)	-9.4 C (15.1 F)	1950	-5.6 C (21.9 F)	31
Wettest day (Rx1day)	69.6 mm (2.7 in)	1966	25.9 mm (1.0 in)	31
Wettest five days (Rx5day)	98.8 mm (3.9 in)	1951	40.7 mm (1.6 in)	31
Longest dry spell (CDD)	173 days	1972	79 days	31

Hottest day (TXx)

The hottest day of the year at Alhambra, 1946 to 1976. The record is 47.2 C (117.0 F) in 1958, marked on the chart; the median year is 45.0 C (113.0 F).

Hottest day (TXx) at Alhambra by year
Year	Hottest day (TXx)
1946	44.4 C (111.9 F)
1947	45.6 C (114.1 F)
1948	46.1 C (115.0 F)
1949	45.0 C (113.0 F)
1950	46.1 C (115.0 F)
1951	45.0 C (113.0 F)
1952	44.4 C (111.9 F)
1953	44.4 C (111.9 F)
1954	45.0 C (113.0 F)
1955	45.0 C (113.0 F)
1956	45.0 C (113.0 F)
1957	46.7 C (116.1 F)
1958	47.2 C (117.0 F)
1959	45.6 C (114.1 F)
1960	46.1 C (115.0 F)
1961	45.6 C (114.1 F)
1962	45.6 C (114.1 F)
1963	44.4 C (111.9 F)
1964	43.9 C (111.0 F)
1965	47.2 C (117.0 F)
1966	43.3 C (109.9 F)
1967	44.4 C (111.9 F)
1968	45.6 C (114.1 F)
1969	44.4 C (111.9 F)
1970	45.6 C (114.1 F)
1971	43.9 C (111.0 F)
1972	45.6 C (114.1 F)
1973	45.6 C (114.1 F)
1974	46.1 C (115.0 F)
1975	45.0 C (113.0 F)
1976	44.4 C (111.9 F)

Coldest night (TNn)

The coldest night of the year at Alhambra, 1946 to 1976. The record is -9.4 C (15.1 F) in 1950, marked on the chart; the median year is -5.6 C (21.9 F).

Coldest night (TNn) at Alhambra by year
Year	Coldest night (TNn)
1946	-6.1 C (21.0 F)
1947	-6.7 C (19.9 F)
1948	-7.8 C (18.0 F)
1949	-8.3 C (17.1 F)
1950	-9.4 C (15.1 F)
1951	-6.1 C (21.0 F)
1952	-5.0 C (23.0 F)
1953	-4.4 C (24.1 F)
1954	-6.7 C (19.9 F)
1955	-6.1 C (21.0 F)
1956	-6.1 C (21.0 F)
1957	-2.8 C (27.0 F)
1958	-3.9 C (25.0 F)
1959	-3.3 C (26.1 F)
1960	-5.6 C (21.9 F)
1961	-2.8 C (27.0 F)
1962	-6.7 C (19.9 F)
1963	-7.2 C (19.0 F)
1964	-5.6 C (21.9 F)
1965	-3.9 C (25.0 F)
1966	-4.4 C (24.1 F)
1967	-5.0 C (23.0 F)
1968	-5.6 C (21.9 F)
1969	-3.3 C (26.1 F)
1970	-5.0 C (23.0 F)
1971	-7.2 C (19.0 F)
1972	-6.1 C (21.0 F)
1973	-2.8 C (27.0 F)
1974	-4.4 C (24.1 F)
1975	-3.3 C (26.1 F)
1976	-6.7 C (19.9 F)

Wettest day (Rx1day)

The wettest day of the year at Alhambra, 1946 to 1976. The record is 69.6 mm (2.7 in) in 1966, marked on the chart; the median year is 25.9 mm (1.0 in).

Wettest day (Rx1day) at Alhambra by year
Year	Wettest day (Rx1day)
1946	47.0 mm (1.9 in)
1947	11.9 mm (0.5 in)
1948	18.8 mm (0.7 in)
1949	16.5 mm (0.6 in)
1950	17.5 mm (0.7 in)
1951	49.0 mm (1.9 in)
1952	36.3 mm (1.4 in)
1953	20.6 mm (0.8 in)
1954	15.0 mm (0.6 in)
1955	36.8 mm (1.4 in)
1956	34.3 mm (1.4 in)
1957	26.7 mm (1.1 in)
1958	25.7 mm (1.0 in)
1959	23.1 mm (0.9 in)
1960	25.9 mm (1.0 in)
1961	23.9 mm (0.9 in)
1962	16.5 mm (0.6 in)
1963	51.8 mm (2.0 in)
1964	53.6 mm (2.1 in)
1965	32.5 mm (1.3 in)
1966	69.6 mm (2.7 in)
1967	41.7 mm (1.6 in)
1968	34.0 mm (1.3 in)
1969	18.8 mm (0.7 in)
1970	35.6 mm (1.4 in)
1971	24.1 mm (0.9 in)
1972	41.1 mm (1.6 in)
1973	25.9 mm (1.0 in)
1974	21.6 mm (0.9 in)
1975	15.7 mm (0.6 in)
1976	27.4 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Alhambra, 1946 to 1976. The record is 98.8 mm (3.9 in) in 1951, marked on the chart; the median year is 40.7 mm (1.6 in).

Wettest five days (Rx5day) at Alhambra by year
Year	Wettest five days (Rx5day)
1946	88.4 mm (3.5 in)
1947	13.8 mm (0.5 in)
1948	24.2 mm (1.0 in)
1949	29.0 mm (1.1 in)
1950	21.3 mm (0.8 in)
1951	98.8 mm (3.9 in)
1952	51.0 mm (2.0 in)
1953	33.1 mm (1.3 in)
1954	18.0 mm (0.7 in)
1955	87.6 mm (3.4 in)
1956	46.2 mm (1.8 in)
1957	40.7 mm (1.6 in)
1958	40.9 mm (1.6 in)
1959	52.6 mm (2.1 in)
1960	27.7 mm (1.1 in)
1961	24.4 mm (1.0 in)
1962	36.8 mm (1.4 in)
1963	52.3 mm (2.1 in)
1964	56.6 mm (2.2 in)
1965	47.2 mm (1.9 in)
1966	91.1 mm (3.6 in)
1967	91.0 mm (3.6 in)
1968	34.0 mm (1.3 in)
1969	30.0 mm (1.2 in)
1970	70.1 mm (2.8 in)
1971	32.7 mm (1.3 in)
1972	42.6 mm (1.7 in)
1973	43.4 mm (1.7 in)
1974	36.8 mm (1.4 in)
1975	17.5 mm (0.7 in)
1976	34.6 mm (1.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Alhambra, 1946 to 1976. The record is 173 days in 1972, marked on the chart; the median year is 79 days.

Longest dry spell (CDD) at Alhambra by year
Year	Longest dry spell (CDD)
1946	78 days
1947	71 days
1948	79 days
1949	77 days
1950	101 days
1951	64 days
1952	47 days
1953	80 days
1954	67 days
1955	55 days
1956	95 days
1957	47 days
1958	45 days
1959	90 days
1960	46 days
1961	94 days
1962	99 days
1963	102 days
1964	77 days
1965	41 days
1966	120 days
1967	64 days
1968	116 days
1969	72 days
1970	131 days
1971	91 days
1972	173 days
1973	126 days
1974	110 days
1975	88 days
1976	64 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Alhambra falls on 5 March and the median first autumn frost on 25 November, which leaves a median of 266 days between them.

Fitted over all years, the growing season changes by +15.1 days per decade at this station.

Frost dates and growing season at Alhambra
Measure	Median, all years	Earliest period	Recent period (1946 to 1975)	Recent against earliest	Fitted trend
Last spring frost	5 March	n/a	5 March	n/a	-8.7 days per decade
First autumn frost	25 November	n/a	25 November	n/a	+6.3 days per decade
Growing days	266 days	n/a	266 days	n/a	+15.1 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

30 years, 1946 to 1975

A day with at least 27.4 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 80.3 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Alhambra: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	27.4 mm (1.1 in)
5 years	40.0 mm (1.6 in)
10 years	48.9 mm (1.9 in)
25 years	60.9 mm (2.4 in)
50 years	70.3 mm (2.8 in)	Longer than the 30 years of record
100 years	80.3 mm (3.2 in)	Longer than the 30 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, 30 years of values from 1946 to 1975.

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: 69.6 mm (2.7 in) in 1966; 53.6 mm (2.1 in) in 1964; 51.8 mm (2.0 in) in 1963.

Download the Data

Data for Alhambra standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Alhambra 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).