Osoyoos Weather Records (CA001125850)

Record envelope, standing records and threshold days for Osoyoos (CA001125850), British Columbia, Canada, with 38 years of record.

Key Facts for Osoyoos

Osoyoos (CA001125850) is a weather station in British Columbia, Canada at 49.03 latitude and -119.43 longitude, 297 m (974 ft) above sea level.
The station reports from 1954 to 1991, 38 years of record.
1,464 records set at Osoyoos still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: British Columbia, Canada, 49.03 latitude, -119.43 longitude.
Elevation: 297 m (974 ft).
Period of record: 1954 to 1991, 38 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 Osoyoos. 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 Osoyoos, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	11.7 C (53.1 F)	-25.0 C (-13.0 F)	n/a	n/a
Feb	15.5 C (59.9 F)	-22.0 C (-7.6 F)	n/a	n/a
Mar	23.3 C (73.9 F)	-17.8 C (0.0 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-6.7 C (19.9 F)	n/a	n/a
May	34.4 C (93.9 F)	-3.9 C (25.0 F)	n/a	n/a
Jun	36.7 C (98.1 F)	0.6 C (33.1 F)	n/a	n/a
Jul	39.5 C (103.1 F)	5.6 C (42.1 F)	n/a	n/a
Aug	37.2 C (99.0 F)	5.6 C (42.1 F)	n/a	n/a
Sep	33.9 C (93.0 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	26.0 C (78.8 F)	-5.6 C (21.9 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-18.3 C (-0.9 F)	n/a	n/a
Dec	14.5 C (58.1 F)	-25.6 C (-14.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Osoyoos still stand. 1955 holds the most, with 89.

Standing records at Osoyoos by the year they were set
Year set	Standing records
1954	55
1955	89
1956	64
1957	58
1958	68
1959	44
1960	67
1961	53
1962	47
1963	55
1964	38
1965	50
1966	36
1967	56
1968	50
1969	46
1970	35
1971	54
1972	59
1973	36
1974	40
1975	35
1976	38
1977	58
1978	40
1979	62
1980	37
1981	58
1982	36

Wettest Day of Each Month

Feb: 40.9 mm (1.6 in)

The wettest day on record for each calendar month at Osoyoos. The most was 40.9 mm (1.6 in) on 3 February 1973.

Record daily precipitation for each month at Osoyoos
Month	Record daily precipitation (mm)	Date
Jan	22.9 mm (0.9 in)	1 January 1965
Feb	40.9 mm (1.6 in)	3 February 1973
Mar	17.8 mm (0.7 in)	1 March 1975
Apr	18.8 mm (0.7 in)	9 April 1971
May	39.1 mm (1.5 in)	2 May 1977
Jun	27.4 mm (1.1 in)	10 June 1958
Jul	30.2 mm (1.2 in)	8 July 1974
Aug	19.3 mm (0.8 in)	9 August 1965
Sep	28.4 mm (1.1 in)	22 September 1973
Oct	23.6 mm (0.9 in)	2 October 1957
Nov	16.5 mm (0.6 in)	3 November 1958
Dec	25.4 mm (1.0 in)	19 December 1963

Period of Record Coverage

1954 to 1982

29 years of record at Osoyoos, 1954 to 1982. 2 years have data for under 90 percent of days and are left out of rankings: 1954, 1982.

Days with data per year at Osoyoos
Year	Days with data	Share of year	Complete
1954	275	75%	No
1955	364	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	365	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	334	92%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	242	66%	No

Latest Records

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

Climate Trend

26 complete years, 1955 to 1981

One stripe for each of 26 complete years at Osoyoos, 1955 to 1981. Blue stripes are years cooler than the station's own mean of 9.8 C (49.6 F); red stripes are warmer. The coolest year was 1955, at 8.1 C (46.5 F), and the warmest was 1967, at 11.3 C (52.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Osoyoos as warming stripes, 1955 to 1981
Year	Annual mean temperature	Difference from the station mean
1955	8.1 C	-1.74 C
1956	9.3 C	-0.45 C
1957	9.3 C	-0.53 C
1958	11.2 C	+1.45 C
1959	8.9 C	-0.91 C
1960	9.6 C	-0.23 C
1961	10.3 C	+0.46 C
1962	10.4 C	+0.57 C
1963	10.4 C	+0.56 C
1964	9.2 C	-0.56 C
1965	10.3 C	+0.47 C
1966	10.4 C	+0.63 C
1967	11.3 C	+1.49 C
1968	10.0 C	+0.17 C
1969	9.4 C	-0.37 C
1970	9.6 C	-0.18 C
1971	9.2 C	-0.63 C
1972	9.0 C	-0.79 C
1973	10.2 C	+0.42 C
1974	10.6 C	+0.79 C
1976	9.3 C	-0.47 C
1977	9.5 C	-0.33 C
1978	9.1 C	-0.68 C
1979	9.9 C	+0.07 C
1980	9.7 C	-0.07 C
1981	10.5 C	+0.73 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1954 to 1982

Yearly extremes at Osoyoos: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.5 C (103.1 F)	1979	36.7 C (98.1 F)	29
Coldest night (TNn)	-25.6 C (-14.1 F)	1968	-17.2 C (1.0 F)	29
Wettest day (Rx1day)	40.9 mm (1.6 in)	1973	20.8 mm (0.8 in)	29
Wettest five days (Rx5day)	66.0 mm (2.6 in)	1982	36.6 mm (1.4 in)	29
Longest dry spell (CDD)	68 days	1974	34 days	29

Hottest day (TXx)

The hottest day of the year at Osoyoos, 1954 to 1982. The record is 39.5 C (103.1 F) in 1979, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Osoyoos by year
Year	Hottest day (TXx)
1954	35.0 C (95.0 F)
1955	36.7 C (98.1 F)
1956	37.8 C (100.0 F)
1957	32.2 C (90.0 F)
1958	36.7 C (98.1 F)
1959	37.8 C (100.0 F)
1960	38.3 C (100.9 F)
1961	37.2 C (99.0 F)
1962	36.7 C (98.1 F)
1963	34.4 C (93.9 F)
1964	35.6 C (96.1 F)
1965	37.2 C (99.0 F)
1966	35.0 C (95.0 F)
1967	36.7 C (98.1 F)
1968	36.7 C (98.1 F)
1969	35.0 C (95.0 F)
1970	35.0 C (95.0 F)
1971	37.2 C (99.0 F)
1972	36.7 C (98.1 F)
1973	36.1 C (97.0 F)
1974	36.1 C (97.0 F)
1975	36.7 C (98.1 F)
1976	34.4 C (93.9 F)
1977	36.7 C (98.1 F)
1978	35.6 C (96.1 F)
1979	39.5 C (103.1 F)
1980	36.0 C (96.8 F)
1981	36.5 C (97.7 F)
1982	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Osoyoos, 1954 to 1982. The record is -25.6 C (-14.1 F) in 1968, marked on the chart; the median year is -17.2 C (1.0 F).

Coldest night (TNn) at Osoyoos by year
Year	Coldest night (TNn)
1954	-8.9 C (16.0 F)
1955	-18.3 C (-0.9 F)
1956	-20.6 C (-5.1 F)
1957	-21.1 C (-6.0 F)
1958	-12.8 C (9.0 F)
1959	-20.0 C (-4.0 F)
1960	-13.9 C (7.0 F)
1961	-11.1 C (12.0 F)
1962	-16.7 C (1.9 F)
1963	-18.9 C (-2.0 F)
1964	-23.9 C (-11.0 F)
1965	-11.1 C (12.0 F)
1966	-12.2 C (10.0 F)
1967	-12.2 C (10.0 F)
1968	-25.6 C (-14.1 F)
1969	-22.8 C (-9.0 F)
1970	-14.4 C (6.1 F)
1971	-16.7 C (1.9 F)
1972	-19.4 C (-2.9 F)
1973	-17.2 C (1.0 F)
1974	-18.9 C (-2.0 F)
1975	-15.6 C (3.9 F)
1976	-13.3 C (8.1 F)
1977	-17.2 C (1.0 F)
1978	-23.5 C (-10.3 F)
1979	-25.0 C (-13.0 F)
1980	-18.0 C (-0.4 F)
1981	-13.0 C (8.6 F)
1982	-17.5 C (0.5 F)

Wettest day (Rx1day)

The wettest day of the year at Osoyoos, 1954 to 1982. The record is 40.9 mm (1.6 in) in 1973, marked on the chart; the median year is 20.8 mm (0.8 in).

Wettest day (Rx1day) at Osoyoos by year
Year	Wettest day (Rx1day)
1954	35.1 mm (1.4 in)
1955	20.8 mm (0.8 in)
1956	20.1 mm (0.8 in)
1957	24.1 mm (0.9 in)
1958	27.4 mm (1.1 in)
1959	20.6 mm (0.8 in)
1960	15.5 mm (0.6 in)
1961	16.5 mm (0.6 in)
1962	11.4 mm (0.4 in)
1963	25.4 mm (1.0 in)
1964	17.8 mm (0.7 in)
1965	22.9 mm (0.9 in)
1966	13.2 mm (0.5 in)
1967	18.8 mm (0.7 in)
1968	32.8 mm (1.3 in)
1969	24.1 mm (0.9 in)
1970	15.5 mm (0.6 in)
1971	19.3 mm (0.8 in)
1972	15.7 mm (0.6 in)
1973	40.9 mm (1.6 in)
1974	30.2 mm (1.2 in)
1975	22.1 mm (0.9 in)
1976	13.2 mm (0.5 in)
1977	39.1 mm (1.5 in)
1978	12.7 mm (0.5 in)
1979	12.2 mm (0.5 in)
1980	24.8 mm (1.0 in)
1981	25.2 mm (1.0 in)
1982	26.6 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Osoyoos, 1954 to 1982. The record is 66.0 mm (2.6 in) in 1982, marked on the chart; the median year is 36.6 mm (1.4 in).

Wettest five days (Rx5day) at Osoyoos by year
Year	Wettest five days (Rx5day)
1954	35.1 mm (1.4 in)
1955	28.7 mm (1.1 in)
1956	41.9 mm (1.6 in)
1957	49.0 mm (1.9 in)
1958	32.7 mm (1.3 in)
1959	60.3 mm (2.4 in)
1960	29.2 mm (1.1 in)
1961	28.8 mm (1.1 in)
1962	21.1 mm (0.8 in)
1963	37.1 mm (1.5 in)
1964	26.4 mm (1.0 in)
1965	64.3 mm (2.5 in)
1966	41.6 mm (1.6 in)
1967	39.9 mm (1.6 in)
1968	48.7 mm (1.9 in)
1969	45.2 mm (1.8 in)
1970	30.5 mm (1.2 in)
1971	40.1 mm (1.6 in)
1972	30.5 mm (1.2 in)
1973	50.3 mm (2.0 in)
1974	41.9 mm (1.6 in)
1975	34.5 mm (1.4 in)
1976	33.1 mm (1.3 in)
1977	47.8 mm (1.9 in)
1978	27.2 mm (1.1 in)
1979	21.2 mm (0.8 in)
1980	36.0 mm (1.4 in)
1981	36.6 mm (1.4 in)
1982	66.0 mm (2.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Osoyoos, 1954 to 1982. The record is 68 days in 1974, marked on the chart; the median year is 34 days.

Longest dry spell (CDD) at Osoyoos by year
Year	Longest dry spell (CDD)
1954	40 days
1955	41 days
1956	30 days
1957	24 days
1958	35 days
1959	28 days
1960	45 days
1961	50 days
1962	46 days
1963	27 days
1964	24 days
1965	24 days
1966	24 days
1967	49 days
1968	30 days
1969	43 days
1970	25 days
1971	40 days
1972	50 days
1973	33 days
1974	68 days
1975	32 days
1976	29 days
1977	32 days
1978	37 days
1979	45 days
1980	47 days
1981	21 days
1982	34 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.

Frost Dates and Growing Season

26 years with a frost

Across 26 years with a frost, the median last spring frost at Osoyoos falls on 19 April and the median first autumn frost on 16 October, which leaves a median of 182 days between them.

Fitted over all years, the growing season changes by -0.3 days per decade at this station.

Frost dates and growing season at Osoyoos
Measure	Median, all years	Earliest period	Recent period (1955 to 1981)	Recent against earliest	Fitted trend
Last spring frost	19 April	n/a	19 April	n/a	+2.9 days per decade
First autumn frost	16 October	n/a	16 October	n/a	+2.7 days per decade
Growing days	182 days	n/a	182 days	n/a	-0.3 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Osoyoos standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Osoyoos 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).