Grave Flats Lo Weather Records (CA003052940)

Record envelope, standing records and threshold days for Grave Flats Lo (CA003052940), Alberta, Canada, with 52 years of record.

Key Facts for Grave Flats Lo

Grave Flats Lo (CA003052940) is a weather station in Alberta, Canada at 52.85 latitude and -117.00 longitude, 2,074 m (6,804 ft) above sea level.
The station reports from 1960 to 2011, 52 years of record.
812 records set at Grave Flats 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, 52.85 latitude, -117.00 longitude.
Elevation: 2,074 m (6,804 ft).
Period of record: 1960 to 2011, 52 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 Grave Flats 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 Grave Flats 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	16.0 C (60.8 F)	-20.0 C (-4.0 F)	n/a	n/a
May	22.8 C (73.0 F)	-9.0 C (15.8 F)	n/a	n/a
Jun	23.9 C (75.0 F)	-7.0 C (19.4 F)	n/a	n/a
Jul	25.6 C (78.1 F)	-2.8 C (27.0 F)	n/a	n/a
Aug	26.1 C (79.0 F)	-7.8 C (18.0 F)	n/a	n/a
Sep	22.8 C (73.0 F)	-13.3 C (8.1 F)	n/a	n/a
Oct	18.3 C (64.9 F)	-11.7 C (10.9 F)	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

812 standing records

812 records at Grave Flats Lo still stand. 1965 holds the most, with 77.

Standing records at Grave Flats Lo by the year they were set
Year set	Standing records
1963	35
1964	41
1965	77
1966	31
1967	69
1968	27
1969	37
1970	38
1971	42
1972	30
1973	20
1974	12
1975	45
1976	13
1977	37
1978	35
1979	47
1980	52
1981	73
1982	31
1983	20

Wettest Day of Each Month

Aug: 105.7 mm (4.2 in)

The wettest day on record for each calendar month at Grave Flats Lo. The most was 105.7 mm (4.2 in) on 5 August 1969.

Record daily precipitation for each month at Grave Flats Lo
Month	Record daily precipitation (mm)	Date
Apr	18.2 mm (0.7 in)	26 April 1983
May	58.3 mm (2.3 in)	15 May 1978
Jun	70.9 mm (2.8 in)	15 June 1970
Jul	76.5 mm (3.0 in)	3 July 1966
Aug	105.7 mm (4.2 in)	5 August 1969
Sep	58.4 mm (2.3 in)	19 September 1960
Oct	31.5 mm (1.2 in)	21 October 1963
Nov	3.8 mm (0.15 in)	6 November 1960

Period of Record Coverage

1963 to 1983

21 years of record at Grave Flats Lo, 1963 to 1983. 21 years have data for under 90 percent of days and are left out of rankings: 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970 and others.

Days with data per year at Grave Flats Lo
Year	Days with data	Share of year	Complete
1963	147	40%	No
1964	137	37%	No
1965	171	47%	No
1966	93	25%	No
1967	148	41%	No
1968	137	37%	No
1969	139	38%	No
1970	116	32%	No
1971	142	39%	No
1972	136	37%	No
1973	100	27%	No
1974	78	21%	No
1975	145	40%	No
1976	102	28%	No
1977	141	39%	No
1978	147	40%	No
1979	175	48%	No
1980	155	42%	No
1981	139	38%	No
1982	148	41%	No
1983	121	33%	No

Latest Records

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

Extremes by Year

1960 to 1983

Yearly extremes at Grave Flats Lo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	26.1 C (79.0 F)	1971	23.9 C (75.0 F)	21
Coldest night (TNn)	-20.0 C (-4.0 F)	1981	-8.0 C (17.6 F)	21
Wettest day (Rx1day)	105.7 mm (4.2 in)	1969	42.0 mm (1.7 in)	24
Wettest five days (Rx5day)	178.4 mm (7.0 in)	1969	75.2 mm (3.0 in)	24
Longest dry spell (CDD)	28 days	1962	14 days	24

Hottest day (TXx)

The hottest day of the year at Grave Flats Lo, 1960 to 1983. The record is 26.1 C (79.0 F) in 1971, marked on the chart; the median year is 23.9 C (75.0 F).

Hottest day (TXx) at Grave Flats Lo by year
Year	Hottest day (TXx)
1960	n/a
1961	n/a
1962	n/a
1963	22.8 C (73.0 F)
1964	23.9 C (75.0 F)
1965	22.8 C (73.0 F)
1966	23.9 C (75.0 F)
1967	25.6 C (78.1 F)
1968	22.8 C (73.0 F)
1969	22.2 C (72.0 F)
1970	23.9 C (75.0 F)
1971	26.1 C (79.0 F)
1972	22.8 C (73.0 F)
1973	25.0 C (77.0 F)
1974	24.4 C (75.9 F)
1975	25.6 C (78.1 F)
1976	21.0 C (69.8 F)
1977	21.0 C (69.8 F)
1978	24.0 C (75.2 F)
1979	23.0 C (73.4 F)
1980	22.0 C (71.6 F)
1981	24.0 C (75.2 F)
1982	23.0 C (73.4 F)
1983	25.0 C (77.0 F)

Coldest night (TNn)

The coldest night of the year at Grave Flats Lo, 1960 to 1983. The record is -20.0 C (-4.0 F) in 1981, marked on the chart; the median year is -8.0 C (17.6 F).

Coldest night (TNn) at Grave Flats Lo by year
Year	Coldest night (TNn)
1960	n/a
1961	n/a
1962	n/a
1963	-7.2 C (19.0 F)
1964	-11.7 C (10.9 F)
1965	-13.3 C (8.1 F)
1966	-10.6 C (12.9 F)
1967	-8.3 C (17.1 F)
1968	-7.8 C (18.0 F)
1969	-10.6 C (12.9 F)
1970	-11.7 C (10.9 F)
1971	-11.1 C (12.0 F)
1972	-13.3 C (8.1 F)
1973	-5.6 C (21.9 F)
1974	-4.4 C (24.1 F)
1975	-6.7 C (19.9 F)
1976	-3.9 C (25.0 F)
1977	-6.0 C (21.2 F)
1978	-8.0 C (17.6 F)
1979	-9.0 C (15.8 F)
1980	-6.0 C (21.2 F)
1981	-20.0 C (-4.0 F)
1982	-8.0 C (17.6 F)
1983	-7.0 C (19.4 F)

Wettest day (Rx1day)

The wettest day of the year at Grave Flats Lo, 1960 to 1983. The record is 105.7 mm (4.2 in) in 1969, marked on the chart; the median year is 42.0 mm (1.7 in).

Wettest day (Rx1day) at Grave Flats Lo by year
Year	Wettest day (Rx1day)
1960	58.4 mm (2.3 in)
1961	36.8 mm (1.4 in)
1962	41.7 mm (1.6 in)
1963	56.1 mm (2.2 in)
1964	54.4 mm (2.1 in)
1965	68.3 mm (2.7 in)
1966	76.5 mm (3.0 in)
1967	20.1 mm (0.8 in)
1968	26.4 mm (1.0 in)
1969	105.7 mm (4.2 in)
1970	70.9 mm (2.8 in)
1971	31.0 mm (1.2 in)
1972	42.2 mm (1.7 in)
1973	25.1 mm (1.0 in)
1974	39.4 mm (1.6 in)
1975	29.0 mm (1.1 in)
1976	22.0 mm (0.9 in)
1977	54.2 mm (2.1 in)
1978	58.3 mm (2.3 in)
1979	19.8 mm (0.8 in)
1980	55.8 mm (2.2 in)
1981	56.8 mm (2.2 in)
1982	32.6 mm (1.3 in)
1983	22.0 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Grave Flats Lo, 1960 to 1983. The record is 178.4 mm (7.0 in) in 1969, marked on the chart; the median year is 75.2 mm (3.0 in).

Wettest five days (Rx5day) at Grave Flats Lo by year
Year	Wettest five days (Rx5day)
1960	61.7 mm (2.4 in)
1961	67.1 mm (2.6 in)
1962	107.1 mm (4.2 in)
1963	68.1 mm (2.7 in)
1964	86.9 mm (3.4 in)
1965	148.4 mm (5.8 in)
1966	107.2 mm (4.2 in)
1967	39.5 mm (1.6 in)
1968	58.4 mm (2.3 in)
1969	178.4 mm (7.0 in)
1970	93.2 mm (3.7 in)
1971	108.2 mm (4.3 in)
1972	89.7 mm (3.5 in)
1973	41.4 mm (1.6 in)
1974	52.3 mm (2.1 in)
1975	42.0 mm (1.7 in)
1976	71.0 mm (2.8 in)
1977	80.3 mm (3.2 in)
1978	86.5 mm (3.4 in)
1979	28.0 mm (1.1 in)
1980	154.6 mm (6.1 in)
1981	75.2 mm (3.0 in)
1982	75.1 mm (3.0 in)
1983	46.6 mm (1.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Grave Flats Lo, 1960 to 1983. The record is 28 days in 1962, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Grave Flats Lo by year
Year	Longest dry spell (CDD)
1960	10 days
1961	11 days
1962	28 days
1963	13 days
1964	14 days
1965	11 days
1966	7 days
1967	28 days
1968	18 days
1969	11 days
1970	20 days
1971	15 days
1972	17 days
1973	14 days
1974	15 days
1975	12 days
1976	12 days
1977	10 days
1978	11 days
1979	18 days
1980	8 days
1981	20 days
1982	10 days
1983	17 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 Grave Flats Lo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grave Flats 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 2026-10-15 (15 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).