Altawan Weather Records (CA003040223)

Record envelope, standing records and threshold days for Altawan (CA003040223), Alberta, Canada, with 43 years of record.

Key Facts for Altawan

Altawan (CA003040223) is a weather station in Alberta, Canada at 49.25 latitude and -110.02 longitude, 945 m (3,100 ft) above sea level.
The station reports from 1965 to 2007, 43 years of record.
1,464 records set at Altawan 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, 49.25 latitude, -110.02 longitude.
Elevation: 945 m (3,100 ft).
Period of record: 1965 to 2007, 43 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 Altawan. 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 Altawan, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	13.9 C (57.0 F)	-45.6 C (-50.1 F)	n/a	n/a
Feb	17.8 C (64.0 F)	-37.0 C (-34.6 F)	n/a	n/a
Mar	21.7 C (71.1 F)	-36.0 C (-32.8 F)	n/a	n/a
Apr	30.0 C (86.0 F)	-29.4 C (-20.9 F)	n/a	n/a
May	33.3 C (91.9 F)	-10.5 C (13.1 F)	n/a	n/a
Jun	37.8 C (100.0 F)	-5.0 C (23.0 F)	n/a	n/a
Jul	40.0 C (104.0 F)	0.0 C (32.0 F)	n/a	n/a
Aug	41.1 C (106.0 F)	-2.8 C (27.0 F)	n/a	n/a
Sep	37.8 C (100.0 F)	-11.7 C (10.9 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-25.6 C (-14.1 F)	n/a	n/a
Nov	24.0 C (75.2 F)	-32.0 C (-25.6 F)	n/a	n/a
Dec	16.0 C (60.8 F)	-46.0 C (-50.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Altawan still stand. 1972 holds the most, with 117.

Standing records at Altawan by the year they were set
Year set	Standing records
1965	12
1966	88
1967	83
1968	104
1969	108
1970	62
1971	28
1972	117
1973	101
1974	101
1975	66
1976	98
1977	72
1978	80
1979	89
1980	36
1981	52
1982	103
1983	64

Wettest Day of Each Month

Jun: 95.3 mm (3.8 in)

The wettest day on record for each calendar month at Altawan. The most was 95.3 mm (3.8 in) on 29 June 1970.

Record daily precipitation for each month at Altawan
Month	Record daily precipitation (mm)	Date
Jan	19.3 mm (0.8 in)	4 January 1978
Feb	30.3 mm (1.2 in)	10 February 1979
Mar	20.3 mm (0.8 in)	29 March 1967
Apr	35.8 mm (1.4 in)	7 April 1975
May	36.8 mm (1.4 in)	6 May 1975
Jun	95.3 mm (3.8 in)	29 June 1970
Jul	37.2 mm (1.5 in)	5 July 1978
Aug	22.9 mm (0.9 in)	23 August 1975
Sep	36.2 mm (1.4 in)	10 September 1978
Oct	13.0 mm (0.5 in)	12 October 1981
Nov	30.2 mm (1.2 in)	8 November 1978
Dec	20.1 mm (0.8 in)	23 December 1980

Period of Record Coverage

1965 to 1983

19 years of record at Altawan, 1965 to 1983. 10 years have data for under 90 percent of days and are left out of rankings: 1965, 1967, 1968, 1971, 1976, 1977, 1980, 1981 and others.

Days with data per year at Altawan
Year	Days with data	Share of year	Complete
1965	61	17%	No
1966	333	91%	Yes
1967	242	66%	No
1968	244	67%	No
1969	333	91%	Yes
1970	332	91%	Yes
1971	181	50%	No
1972	334	91%	Yes
1973	350	96%	Yes
1974	333	91%	Yes
1975	335	92%	Yes
1976	299	82%	No
1977	299	82%	No
1978	348	95%	Yes
1979	330	90%	Yes
1980	146	40%	No
1981	298	82%	No
1982	327	90%	No
1983	318	87%	No

Latest Records

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

Extremes by Year

1965 to 1983

Yearly extremes at Altawan: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.1 C (106.0 F)	1970	36.7 C (98.1 F)	19
Coldest night (TNn)	-46.0 C (-50.8 F)	1983	-37.8 C (-36.0 F)	19
Wettest day (Rx1day)	95.3 mm (3.8 in)	1970	22.0 mm (0.9 in)	19
Wettest five days (Rx5day)	120.4 mm (4.7 in)	1970	40.7 mm (1.6 in)	19
Longest dry spell (CDD)	87 days	1976	38 days	19

Hottest day (TXx)

The hottest day of the year at Altawan, 1965 to 1983. The record is 41.1 C (106.0 F) in 1970, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Altawan by year
Year	Hottest day (TXx)
1965	18.9 C (66.0 F)
1966	35.0 C (95.0 F)
1967	37.8 C (100.0 F)
1968	36.7 C (98.1 F)
1969	40.6 C (105.1 F)
1970	41.1 C (106.0 F)
1971	28.9 C (84.0 F)
1972	35.6 C (96.1 F)
1973	40.0 C (104.0 F)
1974	39.4 C (102.9 F)
1975	40.0 C (104.0 F)
1976	36.1 C (97.0 F)
1977	36.7 C (98.1 F)
1978	39.0 C (102.2 F)
1979	35.0 C (95.0 F)
1980	30.0 C (86.0 F)
1981	35.0 C (95.0 F)
1982	34.0 C (93.2 F)
1983	38.0 C (100.4 F)

Coldest night (TNn)

The coldest night of the year at Altawan, 1965 to 1983. The record is -46.0 C (-50.8 F) in 1983, marked on the chart; the median year is -37.8 C (-36.0 F).

Coldest night (TNn) at Altawan by year
Year	Coldest night (TNn)
1965	-30.0 C (-22.0 F)
1966	-37.8 C (-36.0 F)
1967	-30.6 C (-23.1 F)
1968	-35.0 C (-31.0 F)
1969	-45.6 C (-50.1 F)
1970	-37.8 C (-36.0 F)
1971	-38.9 C (-38.0 F)
1972	-43.3 C (-45.9 F)
1973	-33.3 C (-27.9 F)
1974	-43.3 C (-45.9 F)
1975	-36.7 C (-34.1 F)
1976	-32.2 C (-26.0 F)
1977	-32.0 C (-25.6 F)
1978	-36.5 C (-33.7 F)
1979	-40.0 C (-40.0 F)
1980	-41.0 C (-41.8 F)
1981	-35.0 C (-31.0 F)
1982	-42.0 C (-43.6 F)
1983	-46.0 C (-50.8 F)

Wettest day (Rx1day)

The wettest day of the year at Altawan, 1965 to 1983. The record is 95.3 mm (3.8 in) in 1970, marked on the chart; the median year is 22.0 mm (0.9 in).

Wettest day (Rx1day) at Altawan by year
Year	Wettest day (Rx1day)
1965	20.3 mm (0.8 in)
1966	21.6 mm (0.9 in)
1967	20.3 mm (0.8 in)
1968	16.8 mm (0.7 in)
1969	27.2 mm (1.1 in)
1970	95.3 mm (3.8 in)
1971	16.3 mm (0.6 in)
1972	51.8 mm (2.0 in)
1973	17.0 mm (0.7 in)
1974	35.6 mm (1.4 in)
1975	36.8 mm (1.4 in)
1976	11.9 mm (0.5 in)
1977	19.3 mm (0.8 in)
1978	37.2 mm (1.5 in)
1979	30.3 mm (1.2 in)
1980	22.0 mm (0.9 in)
1981	20.3 mm (0.8 in)
1982	35.4 mm (1.4 in)
1983	22.4 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Altawan, 1965 to 1983. The record is 120.4 mm (4.7 in) in 1970, marked on the chart; the median year is 40.7 mm (1.6 in).

Wettest five days (Rx5day) at Altawan by year
Year	Wettest five days (Rx5day)
1965	25.9 mm (1.0 in)
1966	36.6 mm (1.4 in)
1967	22.6 mm (0.9 in)
1968	32.0 mm (1.3 in)
1969	40.6 mm (1.6 in)
1970	120.4 mm (4.7 in)
1971	25.4 mm (1.0 in)
1972	53.4 mm (2.1 in)
1973	47.4 mm (1.9 in)
1974	62.8 mm (2.5 in)
1975	83.8 mm (3.3 in)
1976	32.0 mm (1.3 in)
1977	25.7 mm (1.0 in)
1978	63.2 mm (2.5 in)
1979	45.2 mm (1.8 in)
1980	38.0 mm (1.5 in)
1981	40.7 mm (1.6 in)
1982	53.0 mm (2.1 in)
1983	49.3 mm (1.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Altawan, 1965 to 1983. The record is 87 days in 1976, marked on the chart; the median year is 38 days.

Longest dry spell (CDD) at Altawan by year
Year	Longest dry spell (CDD)
1965	17 days
1966	28 days
1967	35 days
1968	45 days
1969	74 days
1970	60 days
1971	28 days
1972	33 days
1973	38 days
1974	74 days
1975	17 days
1976	87 days
1977	43 days
1978	35 days
1979	28 days
1980	44 days
1981	81 days
1982	31 days
1983	50 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 Altawan standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Altawan 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).