Tonopah Weather Records (USC00028641)

Record envelope, standing records and threshold days for Tonopah (USC00028641), Arizona, United States, with 60 years of record.

Key Facts for Tonopah

Tonopah (USC00028641) is a weather station in Arizona, United States at 33.42 latitude and -112.86 longitude, 396 m (1,300 ft) above sea level.
The station reports from 1951 to 2010, 60 years of record.
1,464 records set at Tonopah still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Arizona, United States, 33.42 latitude, -112.86 longitude.
Elevation: 396 m (1,300 ft).
Period of record: 1951 to 2010, 60 years.
Eligible elements: none yet.

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 Tonopah. 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 Tonopah, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	28.3 C (82.9 F)	-8.3 C (17.1 F)	n/a	n/a
Feb	32.8 C (91.0 F)	-5.6 C (21.9 F)	n/a	n/a
Mar	36.7 C (98.1 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	40.6 C (105.1 F)	-1.1 C (30.0 F)	n/a	n/a
May	46.1 C (115.0 F)	5.0 C (41.0 F)	n/a	n/a
Jun	49.4 C (120.9 F)	9.4 C (48.9 F)	n/a	n/a
Jul	48.3 C (118.9 F)	14.4 C (57.9 F)	n/a	n/a
Aug	47.2 C (117.0 F)	12.2 C (54.0 F)	n/a	n/a
Sep	45.0 C (113.0 F)	5.6 C (42.1 F)	n/a	n/a
Oct	44.4 C (111.9 F)	1.1 C (34.0 F)	n/a	n/a
Nov	34.4 C (93.9 F)	-3.9 C (25.0 F)	n/a	n/a
Dec	30.6 C (87.1 F)	-10.0 C (14.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tonopah still stand. 1956 holds the most, with 84.

Standing records at Tonopah by the year they were set
Year set	Standing records
1951	13
1952	56
1953	28
1954	7
1956	84
1957	47
1958	69
1959	23
1960	22
1961	45
1962	82
1963	63
1965	16
1966	12
1980	68
1981	43
1982	64
1983	41
1984	33
1985	79
1986	57
1987	40
1988	43
1989	54
1990	47
1991	52
1992	44
1993	26
1994	4
2004	11
2005	25
2006	38
2007	43
2008	25
2009	51
2010	9

Wettest Day of Each Month

Sep: 77.5 mm (3.1 in)

The wettest day on record for each calendar month at Tonopah. The most was 77.5 mm (3.1 in) on 5 September 1962.

Record daily precipitation for each month at Tonopah
Month	Record daily precipitation (mm)	Date
Jan	48.3 mm (1.9 in)	3 January 1989
Feb	60.5 mm (2.4 in)	5 February 1992
Mar	31.5 mm (1.2 in)	30 March 1992
Apr	31.2 mm (1.2 in)	2 April 2004
May	9.9 mm (0.39 in)	23 May 2008
Jun	20.3 mm (0.8 in)	12 June 2010
Jul	46.2 mm (1.8 in)	27 July 1952
Aug	43.2 mm (1.7 in)	24 August 1980
Sep	77.5 mm (3.1 in)	5 September 1962
Oct	37.3 mm (1.5 in)	18 October 2005
Nov	22.9 mm (0.9 in)	8 November 1982
Dec	73.7 mm (2.9 in)	31 December 1951

Period of Record Coverage

1951 to 2010

36 years of record at Tonopah, 1951 to 2010. 25 years have data for under 90 percent of days and are left out of rankings: 1951, 1953, 1954, 1956, 1957, 1959, 1960, 1961 and others.

Days with data per year at Tonopah
Year	Days with data	Share of year	Complete
1951	104	28%	No
1952	330	90%	Yes
1953	132	36%	No
1954	59	16%	No
1956	323	88%	No
1957	315	86%	No
1958	356	98%	Yes
1959	132	36%	No
1960	87	24%	No
1961	318	87%	No
1962	362	99%	Yes
1963	234	64%	No
1965	112	31%	No
1966	59	16%	No
1980	226	62%	No
1981	282	77%	No
1982	353	97%	Yes
1983	321	88%	No
1984	286	78%	No
1985	339	93%	Yes
1986	354	97%	Yes
1987	325	89%	No
1988	352	96%	Yes
1989	359	98%	Yes
1990	310	85%	No
1991	359	98%	Yes
1992	353	96%	Yes
1993	204	56%	No
1994	17	5%	No
2004	131	36%	No
2005	233	64%	No
2006	305	84%	No
2007	307	84%	No
2008	329	90%	No
2009	365	100%	Yes
2010	180	49%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

11 complete years, 1958 to 2009

One stripe for each of 11 complete years at Tonopah, 1958 to 2009. Blue stripes are years cooler than the station's own mean of 21.5 C (70.7 F); red stripes are warmer. The coolest year was 1962, at 20.5 C (68.9 F), and the warmest was 2009, at 22.4 C (72.4 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Tonopah as warming stripes, 1958 to 2009
Year	Annual mean temperature	Difference from the station mean
1958	21.7 C	+0.23 C
1962	20.5 C	-0.97 C
1982	20.7 C	-0.84 C
1985	20.6 C	-0.94 C
1986	21.7 C	+0.22 C
1988	21.6 C	+0.12 C
1989	22.0 C	+0.50 C
1991	21.5 C	+0.03 C
1992	21.7 C	+0.22 C
2008	22.0 C	+0.55 C
2009	22.4 C	+0.93 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

1951 to 2010

Yearly extremes at Tonopah: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	49.4 C (120.9 F)	1990	45.6 C (114.1 F)	36
Coldest night (TNn)	-10.0 C (14.0 F)	1990	-3.3 C (26.1 F)	36
Wettest day (Rx1day)	77.5 mm (3.1 in)	1962	30.9 mm (1.2 in)	36
Wettest five days (Rx5day)	103.2 mm (4.1 in)	1993	38.0 mm (1.5 in)	36
Longest dry spell (CDD)	159 days	1989	83 days	36

Hottest day (TXx)

The hottest day of the year at Tonopah, 1951 to 2010. The record is 49.4 C (120.9 F) in 1990, marked on the chart; the median year is 45.6 C (114.1 F).

Hottest day (TXx) at Tonopah by year
Year	Hottest day (TXx)
1951	40.0 C (104.0 F)
1952	45.0 C (113.0 F)
1953	32.8 C (91.0 F)
1954	30.6 C (87.1 F)
1956	46.1 C (115.0 F)
1957	47.2 C (117.0 F)
1958	48.3 C (118.9 F)
1959	42.8 C (109.0 F)
1960	46.7 C (116.1 F)
1961	45.6 C (114.1 F)
1962	44.4 C (111.9 F)
1963	43.3 C (109.9 F)
1965	34.4 C (93.9 F)
1966	25.0 C (77.0 F)
1980	46.1 C (115.0 F)
1981	45.6 C (114.1 F)
1982	45.0 C (113.0 F)
1983	46.1 C (115.0 F)
1984	46.1 C (115.0 F)
1985	48.3 C (118.9 F)
1986	45.6 C (114.1 F)
1987	45.0 C (113.0 F)
1988	45.0 C (113.0 F)
1989	46.7 C (116.1 F)
1990	49.4 C (120.9 F)
1991	44.4 C (111.9 F)
1992	45.0 C (113.0 F)
1993	47.2 C (117.0 F)
1994	27.2 C (81.0 F)
2004	42.8 C (109.0 F)
2005	47.8 C (118.0 F)
2006	47.8 C (118.0 F)
2007	47.2 C (117.0 F)
2008	46.7 C (116.1 F)
2009	46.1 C (115.0 F)
2010	46.1 C (115.0 F)

Coldest night (TNn)

The coldest night of the year at Tonopah, 1951 to 2010. The record is -10.0 C (14.0 F) in 1990, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at Tonopah by year
Year	Coldest night (TNn)
1951	-7.2 C (19.0 F)
1952	-4.4 C (24.1 F)
1953	-6.7 C (19.9 F)
1954	-2.8 C (27.0 F)
1956	-6.1 C (21.0 F)
1957	-3.3 C (26.1 F)
1958	-5.6 C (21.9 F)
1959	-2.8 C (27.0 F)
1960	-5.0 C (23.0 F)
1961	-4.4 C (24.1 F)
1962	-7.8 C (18.0 F)
1963	-8.3 C (17.1 F)
1965	-2.2 C (28.0 F)
1966	-3.3 C (26.1 F)
1980	0.6 C (33.1 F)
1981	-4.4 C (24.1 F)
1982	-2.2 C (28.0 F)
1983	-3.3 C (26.1 F)
1984	-2.8 C (27.0 F)
1985	-3.3 C (26.1 F)
1986	-3.3 C (26.1 F)
1987	-4.4 C (24.1 F)
1988	-5.0 C (23.0 F)
1989	-4.4 C (24.1 F)
1990	-10.0 C (14.0 F)
1991	-2.8 C (27.0 F)
1992	-2.8 C (27.0 F)
1993	-2.2 C (28.0 F)
1994	-2.8 C (27.0 F)
2004	-0.6 C (30.9 F)
2005	0.6 C (33.1 F)
2006	-5.0 C (23.0 F)
2007	-8.3 C (17.1 F)
2008	-3.3 C (26.1 F)
2009	-3.3 C (26.1 F)
2010	-0.6 C (30.9 F)

Wettest day (Rx1day)

The wettest day of the year at Tonopah, 1951 to 2010. The record is 77.5 mm (3.1 in) in 1962, marked on the chart; the median year is 30.9 mm (1.2 in).

Wettest day (Rx1day) at Tonopah by year
Year	Wettest day (Rx1day)
1951	73.7 mm (2.9 in)
1952	46.2 mm (1.8 in)
1953	10.4 mm (0.4 in)
1954	31.2 mm (1.2 in)
1956	9.1 mm (0.36 in)
1957	46.2 mm (1.8 in)
1958	32.3 mm (1.3 in)
1959	19.3 mm (0.8 in)
1960	13.0 mm (0.5 in)
1961	10.9 mm (0.4 in)
1962	77.5 mm (3.1 in)
1963	25.7 mm (1.0 in)
1965	40.6 mm (1.6 in)
1966	21.6 mm (0.9 in)
1980	43.2 mm (1.7 in)
1981	15.0 mm (0.6 in)
1982	22.9 mm (0.9 in)
1983	23.1 mm (0.9 in)
1984	76.2 mm (3.0 in)
1985	20.3 mm (0.8 in)
1986	22.9 mm (0.9 in)
1987	33.0 mm (1.3 in)
1988	19.3 mm (0.8 in)
1989	48.3 mm (1.9 in)
1990	31.8 mm (1.3 in)
1991	26.7 mm (1.1 in)
1992	60.5 mm (2.4 in)
1993	35.1 mm (1.4 in)
1994	0.0 mm (0.00 in)
2004	33.0 mm (1.3 in)
2005	45.2 mm (1.8 in)
2006	19.3 mm (0.8 in)
2007	35.3 mm (1.4 in)
2008	30.5 mm (1.2 in)
2009	20.3 mm (0.8 in)
2010	39.1 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tonopah, 1951 to 2010. The record is 103.2 mm (4.1 in) in 1993, marked on the chart; the median year is 38.0 mm (1.5 in).

Wettest five days (Rx5day) at Tonopah by year
Year	Wettest five days (Rx5day)
1951	78.7 mm (3.1 in)
1952	78.7 mm (3.1 in)
1953	20.1 mm (0.8 in)
1954	31.2 mm (1.2 in)
1956	10.2 mm (0.4 in)
1957	46.2 mm (1.8 in)
1958	35.3 mm (1.4 in)
1959	35.6 mm (1.4 in)
1960	14.0 mm (0.6 in)
1961	13.4 mm (0.5 in)
1962	77.5 mm (3.1 in)
1963	30.8 mm (1.2 in)
1965	65.6 mm (2.6 in)
1966	44.7 mm (1.8 in)
1980	43.2 mm (1.7 in)
1981	25.9 mm (1.0 in)
1982	47.9 mm (1.9 in)
1983	39.3 mm (1.5 in)
1984	76.2 mm (3.0 in)
1985	24.1 mm (0.9 in)
1986	24.2 mm (1.0 in)
1987	33.0 mm (1.3 in)
1988	26.7 mm (1.1 in)
1989	58.5 mm (2.3 in)
1990	44.6 mm (1.8 in)
1991	33.6 mm (1.3 in)
1992	60.5 mm (2.4 in)
1993	103.2 mm (4.1 in)
1994	0.0 mm (0.00 in)
2004	44.5 mm (1.8 in)
2005	73.6 mm (2.9 in)
2006	20.1 mm (0.8 in)
2007	48.0 mm (1.9 in)
2008	36.6 mm (1.4 in)
2009	20.3 mm (0.8 in)
2010	97.2 mm (3.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tonopah, 1951 to 2010. The record is 159 days in 1989, marked on the chart; the median year is 83 days.

Longest dry spell (CDD) at Tonopah by year
Year	Longest dry spell (CDD)
1951	28 days
1952	45 days
1953	47 days
1954	24 days
1956	141 days
1957	51 days
1958	115 days
1959	68 days
1960	30 days
1961	118 days
1962	99 days
1963	139 days
1965	28 days
1966	18 days
1980	104 days
1981	101 days
1982	72 days
1983	77 days
1984	90 days
1985	144 days
1986	99 days
1987	63 days
1988	54 days
1989	159 days
1990	61 days
1991	134 days
1992	54 days
1993	76 days
1994	31 days
2004	86 days
2005	125 days
2006	125 days
2007	113 days
2008	97 days
2009	92 days
2010	80 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.

Download the Data

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