Helmet Peak Ruby Star Weather Records (USC00027330)

Record envelope, standing records and threshold days for Helmet Peak Ruby Star (USC00027330), Arizona, United States, with 34 years of record.

Key Facts for Helmet Peak Ruby Star

Helmet Peak Ruby Star (USC00027330) is a weather station in Arizona, United States at 31.92 latitude and -111.08 longitude, 1,110 m (3,642 ft) above sea level.
The station reports from 1950 to 1983, 34 years of record.
4 records set at Helmet Peak Ruby Star still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Helmet Peak Ruby Star set a daily record precipitation of 53.3 mm (2.1 in) on 2 October 1983.

About the Station

Location: Arizona, United States, 31.92 latitude, -111.08 longitude.
Elevation: 1,110 m (3,642 ft).
Period of record: 1950 to 1983, 34 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 Helmet Peak Ruby Star. 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 Helmet Peak Ruby Star, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	12.8 C (55.0 F)	6.7 C (44.1 F)	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

4 standing records

4 records at Helmet Peak Ruby Star still stand. 1953 holds the most, with 4.

All-Time Record Progression

1 new records

1 all-time records were set at Helmet Peak Ruby Star between 19 August 1983 and 19 August 1983. Each dot is a new record.

Wettest Day of Each Month

Aug: 121.9 mm (4.8 in)

The wettest day on record for each calendar month at Helmet Peak Ruby Star. The most was 121.9 mm (4.8 in) on 19 August 1983.

Record daily precipitation for each month at Helmet Peak Ruby Star
Month	Record daily precipitation (mm)	Date
Jan	38.4 mm (1.5 in)	18 January 1966
Feb	50.8 mm (2.0 in)	14 February 1980
Mar	29.2 mm (1.1 in)	3 March 1983
Apr	19.3 mm (0.8 in)	25 April 1963
May	11.7 mm (0.5 in)	6 May 1978
Jun	26.2 mm (1.0 in)	21 June 1950
Jul	73.4 mm (2.9 in)	17 July 1967
Aug	121.9 mm (4.8 in)	19 August 1983
Sep	63.5 mm (2.5 in)	4 September 1970
Oct	63.2 mm (2.5 in)	30 October 1951
Nov	36.1 mm (1.4 in)	23 November 1978
Dec	52.8 mm (2.1 in)	15 December 1967

Period of Record Coverage

1953 to 1953

1 years of record at Helmet Peak Ruby Star, 1953 to 1953. 1 years have data for under 90 percent of days and are left out of rankings: 1953.

Latest Records

Latest records at Helmet Peak Ruby Star
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 October 1983	Helmet Peak Ruby Star, US	daily rain	53.3 mm (2.1 in)	46.2 mm (1.8 in)	28 years	51 of 100 (Notable)
1 October 1983	Helmet Peak Ruby Star, US	daily rain	50.8 mm (2.0 in)	39.6 mm (1.6 in)	6 years	42 of 100 (Notable)
30 September 1983	Helmet Peak Ruby Star, US	daily rain	58.4 mm (2.3 in)	41.9 mm (1.6 in)	12 years	46 of 100 (Notable)
29 September 1983	Helmet Peak Ruby Star, US	daily rain	41.9 mm (1.6 in)	7.6 mm (0.30 in)	16 years	15 of 100 (Routine)
28 September 1983	Helmet Peak Ruby Star, US	daily rain	15.7 mm (0.6 in)	15.7 mm (0.6 in)	32 years	20 of 100 (Routine)
22 September 1983	Helmet Peak Ruby Star, US	daily rain	15.5 mm (0.6 in)	6.6 mm (0.26 in)	28 years	17 of 100 (Routine)
20 September 1983	Helmet Peak Ruby Star, US	daily rain	15.5 mm (0.6 in)	8.9 mm (0.35 in)	30 years	20 of 100 (Routine)
28 August 1983	Helmet Peak Ruby Star, US	daily rain	28.7 mm (1.1 in)	20.1 mm (0.8 in)	13 years	26 of 100 (Routine)
19 August 1983	Helmet Peak Ruby Star, US	all-time rain	121.9 mm (4.8 in)	48.5 mm (1.9 in)	16 years	67 of 100 (Major)
21 July 1983	Helmet Peak Ruby Star, US	daily rain	30.7 mm (1.2 in)	12.4 mm (0.5 in)	12 years	17 of 100 (Routine)
20 April 1983	Helmet Peak Ruby Star, US	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	32 years	13 of 100 (Routine)
24 March 1983	Helmet Peak Ruby Star, US	daily rain	7.9 mm (0.31 in)	7.9 mm (0.31 in)	32 years	20 of 100 (Routine)
3 March 1983	Helmet Peak Ruby Star, US	monthly rain	29.2 mm (1.1 in)	4.3 mm (0.17 in)	1 year	20 of 100 (Routine)
3 February 1983	Helmet Peak Ruby Star, US	daily rain	16.0 mm (0.6 in)	13.5 mm (0.5 in)	25 years	20 of 100 (Routine)
2 February 1983	Helmet Peak Ruby Star, US	daily rain	6.1 mm (0.24 in)	6.1 mm (0.24 in)	32 years	19 of 100 (Routine)
29 January 1983	Helmet Peak Ruby Star, US	daily rain	31.8 mm (1.3 in)	16.6 mm (0.7 in)	25 years	35 of 100 (Notable)
27 January 1983	Helmet Peak Ruby Star, US	daily rain (Tie)	5.3 mm (0.21 in)	tie	21 years	2 of 100 (Routine)
19 January 1983	Helmet Peak Ruby Star, US	daily rain	7.4 mm (0.29 in)	3.3 mm (0.13 in)	4 years	8 of 100 (Routine)

Extremes by Year

1950 to 1983

Yearly extremes at Helmet Peak Ruby Star: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	12.8 C (55.0 F)	1953	12.8 C (55.0 F)	1
Coldest night (TNn)	6.7 C (44.1 F)	1953	6.7 C (44.1 F)	1
Wettest day (Rx1day)	121.9 mm (4.8 in)	1983	40.6 mm (1.6 in)	33
Wettest five days (Rx5day)	220.1 mm (8.7 in)	1983	63.0 mm (2.5 in)	33
Longest dry spell (CDD)	176 days	1955	84 days	33

Hottest day (TXx)

The hottest day of the year at Helmet Peak Ruby Star, 1950 to 1983. The record is 12.8 C (55.0 F) in 1953, marked on the chart; the median year is 12.8 C (55.0 F).

Hottest day (TXx) at Helmet Peak Ruby Star by year
Year	Hottest day (TXx)
1950	n/a
1951	n/a
1952	n/a
1953	12.8 C (55.0 F)
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a

Coldest night (TNn)

The coldest night of the year at Helmet Peak Ruby Star, 1950 to 1983. The record is 6.7 C (44.1 F) in 1953, marked on the chart; the median year is 6.7 C (44.1 F).

Coldest night (TNn) at Helmet Peak Ruby Star by year
Year	Coldest night (TNn)
1950	n/a
1951	n/a
1952	n/a
1953	6.7 C (44.1 F)
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a

Wettest day (Rx1day)

The wettest day of the year at Helmet Peak Ruby Star, 1950 to 1983. The record is 121.9 mm (4.8 in) in 1983, marked on the chart; the median year is 40.6 mm (1.6 in).

Wettest day (Rx1day) at Helmet Peak Ruby Star by year
Year	Wettest day (Rx1day)
1950	49.5 mm (1.9 in)
1951	63.2 mm (2.5 in)
1952	32.5 mm (1.3 in)
1953	30.5 mm (1.2 in)
1954	30.5 mm (1.2 in)
1955	53.3 mm (2.1 in)
1956	41.1 mm (1.6 in)
1957	28.7 mm (1.1 in)
1958	26.4 mm (1.0 in)
1959	44.5 mm (1.8 in)
1960	35.6 mm (1.4 in)
1961	40.1 mm (1.6 in)
1962	38.1 mm (1.5 in)
1963	30.5 mm (1.2 in)
1965	37.3 mm (1.5 in)
1966	38.4 mm (1.5 in)
1967	73.4 mm (2.9 in)
1968	46.7 mm (1.8 in)
1969	42.4 mm (1.7 in)
1970	63.5 mm (2.5 in)
1971	35.6 mm (1.4 in)
1972	37.6 mm (1.5 in)
1973	18.8 mm (0.7 in)
1974	29.2 mm (1.1 in)
1975	40.9 mm (1.6 in)
1976	52.1 mm (2.1 in)
1977	36.3 mm (1.4 in)
1978	49.5 mm (1.9 in)
1979	40.6 mm (1.6 in)
1980	50.8 mm (2.0 in)
1981	43.2 mm (1.7 in)
1982	41.9 mm (1.6 in)
1983	121.9 mm (4.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Helmet Peak Ruby Star, 1950 to 1983. The record is 220.1 mm (8.7 in) in 1983, marked on the chart; the median year is 63.0 mm (2.5 in).

Wettest five days (Rx5day) at Helmet Peak Ruby Star by year
Year	Wettest five days (Rx5day)
1950	111.0 mm (4.4 in)
1951	63.2 mm (2.5 in)
1952	55.3 mm (2.2 in)
1953	63.0 mm (2.5 in)
1954	69.6 mm (2.7 in)
1955	138.1 mm (5.4 in)
1956	48.7 mm (1.9 in)
1957	43.7 mm (1.7 in)
1958	41.4 mm (1.6 in)
1959	53.6 mm (2.1 in)
1960	35.6 mm (1.4 in)
1961	79.4 mm (3.1 in)
1962	38.1 mm (1.5 in)
1963	46.5 mm (1.8 in)
1965	79.3 mm (3.1 in)
1966	64.5 mm (2.5 in)
1967	96.8 mm (3.8 in)
1968	70.3 mm (2.8 in)
1969	58.4 mm (2.3 in)
1970	71.4 mm (2.8 in)
1971	66.0 mm (2.6 in)
1972	62.4 mm (2.5 in)
1973	42.2 mm (1.7 in)
1974	37.3 mm (1.5 in)
1975	56.2 mm (2.2 in)
1976	83.8 mm (3.3 in)
1977	42.2 mm (1.7 in)
1978	65.0 mm (2.6 in)
1979	46.3 mm (1.8 in)
1980	50.8 mm (2.0 in)
1981	86.4 mm (3.4 in)
1982	72.2 mm (2.8 in)
1983	220.1 mm (8.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Helmet Peak Ruby Star, 1950 to 1983. The record is 176 days in 1955, marked on the chart; the median year is 84 days.

Longest dry spell (CDD) at Helmet Peak Ruby Star by year
Year	Longest dry spell (CDD)
1950	114 days
1951	71 days
1952	37 days
1953	121 days
1954	84 days
1955	176 days
1956	101 days
1957	42 days
1958	67 days
1959	115 days
1960	100 days
1961	92 days
1962	104 days
1963	39 days
1965	36 days
1966	71 days
1967	49 days
1968	84 days
1969	57 days
1970	70 days
1971	78 days
1972	153 days
1973	95 days
1974	107 days
1975	86 days
1976	40 days
1977	86 days
1978	53 days
1979	50 days
1980	95 days
1981	54 days
1982	57 days
1983	84 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 Helmet Peak Ruby Star standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Helmet Peak Ruby Star 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).