Bison Lo Weather Records (CA003070703)

Record envelope, standing records and threshold days for Bison Lo (CA003070703), Alberta, Canada, with 49 years of record.

Key Facts for Bison Lo

Bison Lo (CA003070703) is a weather station in Alberta, Canada at 57.12 latitude and -116.50 longitude, 732 m (2,402 ft) above sea level.
The station reports from 1963 to 2011, 49 years of record.
854 records set at Bison 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, 57.12 latitude, -116.50 longitude.
Elevation: 732 m (2,402 ft).
Period of record: 1963 to 2011, 49 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 Bison 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 Bison 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	26.0 C (78.8 F)	-21.1 C (-6.0 F)	n/a	n/a
May	30.0 C (86.0 F)	-11.7 C (10.9 F)	n/a	n/a
Jun	32.2 C (90.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	31.1 C (88.0 F)	1.0 C (33.8 F)	n/a	n/a
Aug	32.0 C (89.6 F)	-2.0 C (28.4 F)	n/a	n/a
Sep	29.0 C (84.2 F)	-12.2 C (10.0 F)	n/a	n/a
Oct	23.3 C (73.9 F)	-8.9 C (16.0 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

854 standing records

854 records at Bison Lo still stand. 1963 holds the most, with 118.

Standing records at Bison Lo by the year they were set
Year set	Standing records
1963	118
1964	77
1965	67
1966	29
1967	54
1968	32
1969	40
1970	19
1971	23
1972	41
1973	34
1974	34
1975	38
1976	21
1977	28
1978	29
1979	30
1980	38
1981	38
1982	39
1983	25

Wettest Day of Each Month

Jul: 111.0 mm (4.4 in)

The wettest day on record for each calendar month at Bison Lo. The most was 111.0 mm (4.4 in) on 22 July 1963.

Record daily precipitation for each month at Bison Lo
Month	Record daily precipitation (mm)	Date
Apr	35.2 mm (1.4 in)	24 April 1981
May	55.3 mm (2.2 in)	27 May 1979
Jun	69.5 mm (2.7 in)	2 June 1977
Jul	111.0 mm (4.4 in)	22 July 1963
Aug	59.2 mm (2.3 in)	17 August 1973
Sep	36.1 mm (1.4 in)	13 September 1969
Oct	9.9 mm (0.39 in)	20 October 1964

Period of Record Coverage

1963 to 1983

21 years of record at Bison 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 Bison Lo
Year	Days with data	Share of year	Complete
1963	209	57%	No
1964	200	55%	No
1965	177	48%	No
1966	131	36%	No
1967	162	44%	No
1968	153	42%	No
1969	159	44%	No
1970	138	38%	No
1971	124	34%	No
1972	150	41%	No
1973	159	44%	No
1974	163	45%	No
1975	166	45%	No
1976	130	36%	No
1977	137	38%	No
1978	139	38%	No
1979	125	34%	No
1980	149	41%	No
1981	130	36%	No
1982	131	36%	No
1983	123	34%	No

Latest Records

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

Extremes by Year

1963 to 1983

Yearly extremes at Bison Lo: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	32.2 C (90.0 F)	1970	30.0 C (86.0 F)	21
Coldest night (TNn)	-21.1 C (-6.0 F)	1964	-7.0 C (19.4 F)	21
Wettest day (Rx1day)	111.0 mm (4.4 in)	1963	36.1 mm (1.4 in)	21
Wettest five days (Rx5day)	128.5 mm (5.1 in)	1963	55.6 mm (2.2 in)	21
Longest dry spell (CDD)	38 days	1963	18 days	21

Hottest day (TXx)

The hottest day of the year at Bison Lo, 1963 to 1983. The record is 32.2 C (90.0 F) in 1970, marked on the chart; the median year is 30.0 C (86.0 F).

Hottest day (TXx) at Bison Lo by year
Year	Hottest day (TXx)
1963	30.0 C (86.0 F)
1964	29.4 C (84.9 F)
1965	31.1 C (88.0 F)
1966	27.2 C (81.0 F)
1967	31.7 C (89.1 F)
1968	29.4 C (84.9 F)
1969	28.3 C (82.9 F)
1970	32.2 C (90.0 F)
1971	31.1 C (88.0 F)
1972	27.8 C (82.0 F)
1973	29.4 C (84.9 F)
1974	30.6 C (87.1 F)
1975	31.1 C (88.0 F)
1976	26.1 C (79.0 F)
1977	27.0 C (80.6 F)
1978	29.0 C (84.2 F)
1979	30.0 C (86.0 F)
1980	27.0 C (80.6 F)
1981	32.0 C (89.6 F)
1982	31.0 C (87.8 F)
1983	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at Bison Lo, 1963 to 1983. The record is -21.1 C (-6.0 F) in 1964, marked on the chart; the median year is -7.0 C (19.4 F).

Coldest night (TNn) at Bison Lo by year
Year	Coldest night (TNn)
1963	-10.6 C (12.9 F)
1964	-21.1 C (-6.0 F)
1965	-12.8 C (9.0 F)
1966	-1.7 C (28.9 F)
1967	-6.7 C (19.9 F)
1968	-5.0 C (23.0 F)
1969	-6.1 C (21.0 F)
1970	-8.9 C (16.0 F)
1971	-9.4 C (15.1 F)
1972	-6.1 C (21.0 F)
1973	-1.7 C (28.9 F)
1974	-12.2 C (10.0 F)
1975	-4.4 C (24.1 F)
1976	-1.1 C (30.0 F)
1977	-3.0 C (26.6 F)
1978	-11.0 C (12.2 F)
1979	-8.0 C (17.6 F)
1980	-2.0 C (28.4 F)
1981	-10.0 C (14.0 F)
1982	-7.0 C (19.4 F)
1983	-7.0 C (19.4 F)

Wettest day (Rx1day)

The wettest day of the year at Bison Lo, 1963 to 1983. The record is 111.0 mm (4.4 in) in 1963, marked on the chart; the median year is 36.1 mm (1.4 in).

Wettest day (Rx1day) at Bison Lo by year
Year	Wettest day (Rx1day)
1963	111.0 mm (4.4 in)
1964	42.7 mm (1.7 in)
1965	23.4 mm (0.9 in)
1966	21.6 mm (0.9 in)
1967	24.1 mm (0.9 in)
1968	23.9 mm (0.9 in)
1969	36.1 mm (1.4 in)
1970	54.1 mm (2.1 in)
1971	30.5 mm (1.2 in)
1972	27.7 mm (1.1 in)
1973	59.2 mm (2.3 in)
1974	26.7 mm (1.1 in)
1975	56.9 mm (2.2 in)
1976	36.6 mm (1.4 in)
1977	69.5 mm (2.7 in)
1978	28.2 mm (1.1 in)
1979	55.3 mm (2.2 in)
1980	36.5 mm (1.4 in)
1981	35.2 mm (1.4 in)
1982	19.0 mm (0.7 in)
1983	36.4 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bison Lo, 1963 to 1983. The record is 128.5 mm (5.1 in) in 1963, marked on the chart; the median year is 55.6 mm (2.2 in).

Wettest five days (Rx5day) at Bison Lo by year
Year	Wettest five days (Rx5day)
1963	128.5 mm (5.1 in)
1964	60.5 mm (2.4 in)
1965	23.9 mm (0.9 in)
1966	47.0 mm (1.9 in)
1967	46.0 mm (1.8 in)
1968	38.3 mm (1.5 in)
1969	49.3 mm (1.9 in)
1970	55.6 mm (2.2 in)
1971	53.4 mm (2.1 in)
1972	44.2 mm (1.7 in)
1973	111.6 mm (4.4 in)
1974	52.8 mm (2.1 in)
1975	71.2 mm (2.8 in)
1976	74.3 mm (2.9 in)
1977	99.2 mm (3.9 in)
1978	46.7 mm (1.8 in)
1979	70.3 mm (2.8 in)
1980	49.8 mm (2.0 in)
1981	58.2 mm (2.3 in)
1982	67.7 mm (2.7 in)
1983	77.0 mm (3.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bison Lo, 1963 to 1983. The record is 38 days in 1963, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Bison Lo by year
Year	Longest dry spell (CDD)
1963	38 days
1964	14 days
1965	18 days
1966	20 days
1967	12 days
1968	19 days
1969	19 days
1970	21 days
1971	12 days
1972	23 days
1973	11 days
1974	12 days
1975	16 days
1976	12 days
1977	11 days
1978	18 days
1979	13 days
1980	24 days
1981	27 days
1982	37 days
1983	12 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 Bison Lo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bison 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).