Ironstone Lo Weather Records (CA003053505)

Record envelope, standing records and threshold days for Ironstone Lo (CA003053505), Alberta, Canada, with 51 years of record.

Key Facts for Ironstone Lo

Ironstone Lo (CA003053505) is a weather station in Alberta, Canada at 49.57 latitude and -114.47 longitude, 2,073 m (6,801 ft) above sea level.
The station reports from 1961 to 2011, 51 years of record.
778 records set at Ironstone Lo still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Alberta, Canada, 49.57 latitude, -114.47 longitude.
Elevation: 2,073 m (6,801 ft).
Period of record: 1961 to 2011, 51 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 Ironstone Lo. 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 Ironstone Lo, 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	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	10.0 C (50.0 F)	-8.0 C (17.6 F)	n/a	n/a
May	22.0 C (71.6 F)	-14.0 C (6.8 F)	n/a	n/a
Jun	26.0 C (78.8 F)	-6.7 C (19.9 F)	n/a	n/a
Jul	27.2 C (81.0 F)	-4.4 C (24.1 F)	n/a	n/a
Aug	28.9 C (84.0 F)	-3.3 C (26.1 F)	n/a	n/a
Sep	28.0 C (82.4 F)	-12.2 C (10.0 F)	n/a	n/a
Oct	19.4 C (66.9 F)	-10.6 C (12.9 F)	n/a	n/a
Nov	7.2 C (45.0 F)	-11.7 C (10.9 F)	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

778 standing records

778 records at Ironstone Lo still stand. 1965 holds the most, with 76.

Standing records at Ironstone Lo by the year they were set
Year set	Standing records
1962	22
1963	38
1964	24
1965	76
1966	22
1967	60
1968	23
1969	25
1970	35
1971	32
1972	19
1973	38
1974	43
1975	38
1976	31
1977	45
1978	16
1979	37
1980	45
1981	38
1982	26
1983	45

Wettest Day of Each Month

May: 75.8 mm (3.0 in)

The wettest day on record for each calendar month at Ironstone Lo. The most was 75.8 mm (3.0 in) on 15 May 1981.

Record daily precipitation for each month at Ironstone Lo
Month	Record daily precipitation (mm)	Date
Apr	14.4 mm (0.6 in)	25 April 1983
May	75.8 mm (3.0 in)	15 May 1981
Jun	58.4 mm (2.3 in)	17 June 1965
Jul	45.6 mm (1.8 in)	17 July 1978
Aug	49.7 mm (2.0 in)	5 August 1976
Sep	34.3 mm (1.4 in)	5 September 1972
Oct	40.6 mm (1.6 in)	23 October 1967
Nov	8.9 mm (0.35 in)	4 November 1965

Period of Record Coverage

1962 to 1983

22 years of record at Ironstone Lo, 1962 to 1983. 22 years have data for under 90 percent of days and are left out of rankings: 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969 and others.

Days with data per year at Ironstone Lo
Year	Days with data	Share of year	Complete
1962	139	38%	No
1963	144	39%	No
1964	122	33%	No
1965	157	43%	No
1966	140	38%	No
1967	149	41%	No
1968	133	36%	No
1969	131	36%	No
1970	116	32%	No
1971	134	37%	No
1972	111	30%	No
1973	152	42%	No
1974	141	39%	No
1975	156	43%	No
1976	164	45%	No
1977	161	44%	No
1978	131	36%	No
1979	162	44%	No
1980	167	46%	No
1981	152	42%	No
1982	159	44%	No
1983	169	46%	No

Latest Records

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

Extremes by Year

1961 to 1983

Yearly extremes at Ironstone Lo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	28.9 C (84.0 F)	1969	25.5 C (77.9 F)	22
Coldest night (TNn)	-14.0 C (6.8 F)	1981	-7.9 C (17.8 F)	22
Wettest day (Rx1day)	75.8 mm (3.0 in)	1981	31.8 mm (1.3 in)	23
Wettest five days (Rx5day)	136.0 mm (5.4 in)	1981	65.3 mm (2.6 in)	23
Longest dry spell (CDD)	45 days	1969	15 days	23

Hottest day (TXx)

The hottest day of the year at Ironstone Lo, 1961 to 1983. The record is 28.9 C (84.0 F) in 1969, marked on the chart; the median year is 25.5 C (77.9 F).

Hottest day (TXx) at Ironstone Lo by year
Year	Hottest day (TXx)
1961	n/a
1962	23.9 C (75.0 F)
1963	27.2 C (81.0 F)
1964	25.0 C (77.0 F)
1965	26.7 C (80.1 F)
1966	26.1 C (79.0 F)
1967	27.8 C (82.0 F)
1968	25.0 C (77.0 F)
1969	28.9 C (84.0 F)
1970	25.0 C (77.0 F)
1971	27.8 C (82.0 F)
1972	24.4 C (75.9 F)
1973	26.1 C (79.0 F)
1974	24.4 C (75.9 F)
1975	27.2 C (81.0 F)
1976	23.0 C (73.4 F)
1977	26.0 C (78.8 F)
1978	25.0 C (77.0 F)
1979	27.0 C (80.6 F)
1980	25.0 C (77.0 F)
1981	28.0 C (82.4 F)
1982	24.0 C (75.2 F)
1983	25.0 C (77.0 F)

Coldest night (TNn)

The coldest night of the year at Ironstone Lo, 1961 to 1983. The record is -14.0 C (6.8 F) in 1981, marked on the chart; the median year is -7.9 C (17.8 F).

Coldest night (TNn) at Ironstone Lo by year
Year	Coldest night (TNn)
1961	n/a
1962	-7.8 C (18.0 F)
1963	-5.6 C (21.9 F)
1964	-10.0 C (14.0 F)
1965	-12.2 C (10.0 F)
1966	-5.6 C (21.9 F)
1967	-8.3 C (17.1 F)
1968	-6.7 C (19.9 F)
1969	-5.0 C (23.0 F)
1970	-11.7 C (10.9 F)
1971	-6.1 C (21.0 F)
1972	-11.1 C (12.0 F)
1973	-6.7 C (19.9 F)
1974	-8.3 C (17.1 F)
1975	-10.0 C (14.0 F)
1976	-8.0 C (17.6 F)
1977	-7.0 C (19.4 F)
1978	-4.0 C (24.8 F)
1979	-9.0 C (15.8 F)
1980	-6.0 C (21.2 F)
1981	-14.0 C (6.8 F)
1982	-7.0 C (19.4 F)
1983	-10.0 C (14.0 F)

Wettest day (Rx1day)

The wettest day of the year at Ironstone Lo, 1961 to 1983. The record is 75.8 mm (3.0 in) in 1981, marked on the chart; the median year is 31.8 mm (1.3 in).

Wettest day (Rx1day) at Ironstone Lo by year
Year	Wettest day (Rx1day)
1961	17.3 mm (0.7 in)
1962	25.4 mm (1.0 in)
1963	48.5 mm (1.9 in)
1964	47.8 mm (1.9 in)
1965	58.4 mm (2.3 in)
1966	20.3 mm (0.8 in)
1967	40.6 mm (1.6 in)
1968	25.9 mm (1.0 in)
1969	31.8 mm (1.3 in)
1970	19.6 mm (0.8 in)
1971	37.8 mm (1.5 in)
1972	34.3 mm (1.4 in)
1973	26.4 mm (1.0 in)
1974	21.6 mm (0.9 in)
1975	31.0 mm (1.2 in)
1976	49.7 mm (2.0 in)
1977	23.1 mm (0.9 in)
1978	45.6 mm (1.8 in)
1979	33.8 mm (1.3 in)
1980	46.0 mm (1.8 in)
1981	75.8 mm (3.0 in)
1982	19.5 mm (0.8 in)
1983	26.2 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ironstone Lo, 1961 to 1983. The record is 136.0 mm (5.4 in) in 1981, marked on the chart; the median year is 65.3 mm (2.6 in).

Wettest five days (Rx5day) at Ironstone Lo by year
Year	Wettest five days (Rx5day)
1961	30.4 mm (1.2 in)
1962	43.4 mm (1.7 in)
1963	90.0 mm (3.5 in)
1964	73.5 mm (2.9 in)
1965	102.8 mm (4.0 in)
1966	52.4 mm (2.1 in)
1967	56.1 mm (2.2 in)
1968	77.8 mm (3.1 in)
1969	76.9 mm (3.0 in)
1970	46.7 mm (1.8 in)
1971	55.1 mm (2.2 in)
1972	70.4 mm (2.8 in)
1973	56.1 mm (2.2 in)
1974	64.3 mm (2.5 in)
1975	88.6 mm (3.5 in)
1976	125.2 mm (4.9 in)
1977	40.5 mm (1.6 in)
1978	72.9 mm (2.9 in)
1979	65.3 mm (2.6 in)
1980	72.6 mm (2.9 in)
1981	136.0 mm (5.4 in)
1982	44.0 mm (1.7 in)
1983	32.4 mm (1.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ironstone Lo, 1961 to 1983. The record is 45 days in 1969, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at Ironstone Lo by year
Year	Longest dry spell (CDD)
1961	15 days
1962	12 days
1963	15 days
1964	9 days
1965	10 days
1966	11 days
1967	34 days
1968	15 days
1969	45 days
1970	25 days
1971	24 days
1972	16 days
1973	13 days
1974	18 days
1975	15 days
1976	13 days
1977	12 days
1978	11 days
1979	17 days
1980	12 days
1981	14 days
1982	17 days
1983	13 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 Ironstone Lo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ironstone Lo 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).