Caribou Island Weather Records (CA006041221)

Record envelope, standing records and threshold days for Caribou Island (CA006041221), Ontario, Canada, with 54 years of record.

Key Facts for Caribou Island

Caribou Island (CA006041221) is a weather station in Ontario, Canada at 47.33 latitude and -85.83 longitude, 187 m (614 ft) above sea level.
The station reports from 1935 to 1988, 54 years of record.
998 records set at Caribou Island still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Caribou Island set a daily record low minimum temperature of -6.0 C (21.2 F) on 12 November 1983.

About the Station

Location: Ontario, Canada, 47.33 latitude, -85.83 longitude.
Elevation: 187 m (614 ft).
Period of record: 1935 to 1988, 54 years.
Eligible elements: tmax, tmin, prcp, snow.

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 Caribou Island. 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 Caribou Island, 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	14.4 C (57.9 F)	-6.1 C (21.0 F)	n/a	n/a
May	22.8 C (73.0 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	20.0 C (68.0 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	25.6 C (78.1 F)	1.7 C (35.1 F)	n/a	n/a
Aug	25.6 C (78.1 F)	4.5 C (40.1 F)	n/a	n/a
Sep	24.5 C (76.1 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	18.9 C (66.0 F)	-5.6 C (21.9 F)	n/a	n/a
Nov	12.8 C (55.0 F)	-18.0 C (-0.4 F)	n/a	n/a
Dec	8.9 C (48.0 F)	-17.2 C (1.0 F)	n/a	n/a

Which Years Hold Standing Records

998 standing records

998 records at Caribou Island still stand. 1942 holds the most, with 49.

Standing records at Caribou Island by the year they were set
Year set	Standing records
1935	30
1936	37
1937	13
1938	19
1939	19
1940	29
1941	32
1942	49
1943	26
1944	9
1945	28
1946	12
1947	20
1948	25
1949	24
1950	39
1951	16
1952	8
1953	40
1954	6
1955	38
1956	16
1957	9
1958	9
1959	12
1960	9
1961	13
1962	15
1963	23
1964	28
1965	8
1966	26
1967	21
1968	32
1969	11
1970	43
1971	14
1972	3
1973	24
1974	16
1975	24
1976	11
1977	18
1978	13
1979	11
1980	10
1981	9
1982	24
1983	27

All-Time Record Progression

3 new records

3 all-time records were set at Caribou Island between 21 August 1968 and 30 November 1979. Each dot is a new record.

When Caribou Island set new all-time records
Date	Kind	Detail
1968-08-21	Record daily precipitation	Record daily precipitation 78.7 mm (3.1 in)
1979-11-30	Record low maximum temperature	Record low maximum temperature -12.0 C (10.4 F)
1979-11-30	Record low minimum temperature	Record low minimum temperature -18.0 C (-0.4 F)

Wettest Day of Each Month

Aug: 78.7 mm (3.1 in)

The wettest day on record for each calendar month at Caribou Island. The most was 78.7 mm (3.1 in) on 21 August 1968.

Record daily precipitation for each month at Caribou Island
Month	Record daily precipitation (mm)	Date
Apr	31.0 mm (1.2 in)	21 April 1948
May	38.1 mm (1.5 in)	9 May 1970
Jun	62.5 mm (2.5 in)	25 June 1944
Jul	62.2 mm (2.4 in)	24 July 1964
Aug	78.7 mm (3.1 in)	21 August 1968
Sep	48.5 mm (1.9 in)	26 September 1951
Oct	71.1 mm (2.8 in)	24 October 1959
Nov	46.5 mm (1.8 in)	8 November 1945
Dec	17.0 mm (0.7 in)	1 December 1970

Period of Record Coverage

1935 to 1983

49 years of record at Caribou Island, 1935 to 1983. 49 years have data for under 90 percent of days and are left out of rankings: 1935, 1936, 1937, 1938, 1939, 1940, 1941, 1942 and others.

Days with data per year at Caribou Island
Year	Days with data	Share of year	Complete
1935	207	57%	No
1936	212	58%	No
1937	233	64%	No
1938	232	64%	No
1939	221	61%	No
1940	219	60%	No
1941	231	63%	No
1942	231	63%	No
1943	204	56%	No
1944	214	58%	No
1945	224	61%	No
1946	226	62%	No
1947	202	55%	No
1948	223	61%	No
1949	225	62%	No
1950	204	56%	No
1951	228	62%	No
1952	214	58%	No
1953	220	60%	No
1954	214	59%	No
1955	214	59%	No
1956	213	58%	No
1957	214	59%	No
1958	214	59%	No
1959	201	55%	No
1960	214	58%	No
1961	214	59%	No
1962	214	59%	No
1963	214	59%	No
1964	214	58%	No
1965	214	59%	No
1966	233	64%	No
1967	232	64%	No
1968	232	63%	No
1969	232	64%	No
1970	249	68%	No
1971	214	59%	No
1972	214	58%	No
1973	234	64%	No
1974	231	63%	No
1975	226	62%	No
1976	227	62%	No
1977	227	62%	No
1978	237	65%	No
1979	227	62%	No
1980	196	54%	No
1981	204	56%	No
1982	212	58%	No
1983	214	59%	No

Latest Records

Latest records at Caribou Island
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 November 1983	Caribou Island, CA	daily low min	-6.0 C (21.2 F)	0.4 C (0.7 F)	44 years	17 of 100 (Routine)
11 November 1983	Caribou Island, CA	daily low max	-1.5 C (29.3 F)	0.4 C (0.7 F)	44 years	18 of 100 (Routine)
13 October 1983	Caribou Island, CA	daily rain	28.4 mm (1.1 in)	10.1 mm (0.4 in)	40 years	30 of 100 (Routine)
2 October 1983	Caribou Island, CA	daily high max	16.0 C (60.8 F)	0.4 C (0.7 F)	29 years	13 of 100 (Routine)
2 October 1983	Caribou Island, CA	daily high min	11.5 C (52.7 F)	0.4 C (0.7 F)	12 years	8 of 100 (Routine)
1 October 1983	Caribou Island, CA	monthly high min	12.5 C (54.5 F)	0.3 C (0.5 F)	19 years	19 of 100 (Routine)
29 September 1983	Caribou Island, CA	daily high min	12.5 C (54.5 F)	1.4 C (2.5 F)	12 years	11 of 100 (Routine)
8 September 1983	Caribou Island, CA	daily high max (Tie)	20.0 C (68.0 F)	tie	21 years	2 of 100 (Routine)
3 September 1983	Caribou Island, CA	monthly high max	24.5 C (76.1 F)	1.2 C (2.2 F)	29 years	26 of 100 (Routine)
30 August 1983	Caribou Island, CA	daily high max	22.0 C (71.6 F)	0.9 C (1.6 F)	29 years	15 of 100 (Routine)
29 August 1983	Caribou Island, CA	daily high max	23.5 C (74.3 F)	1.3 C (2.3 F)	45 years	21 of 100 (Routine)
28 August 1983	Caribou Island, CA	daily high max	22.5 C (72.5 F)	0.8 C (1.4 F)	9 years	9 of 100 (Routine)
25 August 1983	Caribou Island, CA	daily high max	21.5 C (70.7 F)	0.9 C (1.6 F)	34 years	17 of 100 (Routine)
16 August 1983	Caribou Island, CA	daily high max	23.5 C (74.3 F)	1.3 C (2.3 F)	42 years	20 of 100 (Routine)
8 August 1983	Caribou Island, CA	daily high min	16.5 C (61.7 F)	1.5 C (2.7 F)	21 years	16 of 100 (Routine)
7 August 1983	Caribou Island, CA	daily high min	16.0 C (60.8 F)	1.0 C (1.8 F)	41 years	20 of 100 (Routine)
7 August 1983	Caribou Island, CA	daily high max	22.5 C (72.5 F)	0.3 C (0.5 F)	44 years	18 of 100 (Routine)
6 August 1983	Caribou Island, CA	daily high max	22.0 C (71.6 F)	1.4 C (2.5 F)	36 years	20 of 100 (Routine)
6 August 1983	Caribou Island, CA	daily high min	16.5 C (61.7 F)	2.1 C (3.8 F)	28 years	20 of 100 (Routine)
31 July 1983	Caribou Island, CA	daily high min	15.0 C (59.0 F)	0.6 C (1.1 F)	28 years	14 of 100 (Routine)

Extremes by Year

1935 to 1983

Yearly extremes at Caribou Island: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	25.6 C (78.1 F)	1955	21.1 C (70.0 F)	49
Coldest night (TNn)	-18.0 C (-0.4 F)	1979	-8.9 C (16.0 F)	49
Wettest day (Rx1day)	78.7 mm (3.1 in)	1968	36.8 mm (1.4 in)	49
Wettest five days (Rx5day)	95.6 mm (3.8 in)	1978	60.9 mm (2.4 in)	49
Longest dry spell (CDD)	27 days	1954	17 days	49

Hottest day (TXx)

The hottest day of the year at Caribou Island, 1935 to 1983. The record is 25.6 C (78.1 F) in 1955, marked on the chart; the median year is 21.1 C (70.0 F).

Hottest day (TXx) at Caribou Island by year
Year	Hottest day (TXx)
1935	23.9 C (75.0 F)
1936	23.3 C (73.9 F)
1937	22.2 C (72.0 F)
1938	20.0 C (68.0 F)
1939	22.2 C (72.0 F)
1940	22.2 C (72.0 F)
1941	21.1 C (70.0 F)
1942	22.2 C (72.0 F)
1943	18.9 C (66.0 F)
1944	21.1 C (70.0 F)
1945	22.2 C (72.0 F)
1946	21.1 C (70.0 F)
1947	22.2 C (72.0 F)
1948	21.7 C (71.1 F)
1949	22.2 C (72.0 F)
1950	18.3 C (64.9 F)
1951	21.7 C (71.1 F)
1952	21.1 C (70.0 F)
1953	23.3 C (73.9 F)
1954	20.0 C (68.0 F)
1955	25.6 C (78.1 F)
1956	21.1 C (70.0 F)
1957	25.6 C (78.1 F)
1958	21.7 C (71.1 F)
1959	21.1 C (70.0 F)
1960	21.1 C (70.0 F)
1961	22.2 C (72.0 F)
1962	20.6 C (69.1 F)
1963	21.1 C (70.0 F)
1964	22.8 C (73.0 F)
1965	18.9 C (66.0 F)
1966	20.6 C (69.1 F)
1967	20.6 C (69.1 F)
1968	20.0 C (68.0 F)
1969	21.1 C (70.0 F)
1970	22.8 C (73.0 F)
1971	20.0 C (68.0 F)
1972	19.4 C (66.9 F)
1973	23.3 C (73.9 F)
1974	19.4 C (66.9 F)
1975	22.2 C (72.0 F)
1976	22.8 C (73.0 F)
1977	17.8 C (64.0 F)
1978	19.4 C (66.9 F)
1979	20.5 C (68.9 F)
1980	21.0 C (69.8 F)
1981	21.0 C (69.8 F)
1982	18.5 C (65.3 F)
1983	24.5 C (76.1 F)

Coldest night (TNn)

The coldest night of the year at Caribou Island, 1935 to 1983. The record is -18.0 C (-0.4 F) in 1979, marked on the chart; the median year is -8.9 C (16.0 F).

Coldest night (TNn) at Caribou Island by year
Year	Coldest night (TNn)
1935	-12.8 C (9.0 F)
1936	-13.9 C (7.0 F)
1937	-11.1 C (12.0 F)
1938	-8.9 C (16.0 F)
1939	-5.6 C (21.9 F)
1940	-17.2 C (1.0 F)
1941	-8.3 C (17.1 F)
1942	-10.0 C (14.0 F)
1943	-8.3 C (17.1 F)
1944	-7.2 C (19.0 F)
1945	-6.7 C (19.9 F)
1946	-10.0 C (14.0 F)
1947	-10.0 C (14.0 F)
1948	-3.3 C (26.1 F)
1949	-12.2 C (10.0 F)
1950	-7.8 C (18.0 F)
1951	-8.9 C (16.0 F)
1952	-8.3 C (17.1 F)
1953	-3.3 C (26.1 F)
1954	-4.4 C (24.1 F)
1955	-6.7 C (19.9 F)
1956	-14.4 C (6.1 F)
1957	-12.2 C (10.0 F)
1958	-13.3 C (8.1 F)
1959	-10.0 C (14.0 F)
1960	-5.6 C (21.9 F)
1961	-6.7 C (19.9 F)
1962	-3.3 C (26.1 F)
1963	-9.4 C (15.1 F)
1964	-15.6 C (3.9 F)
1965	-7.2 C (19.0 F)
1966	-8.9 C (16.0 F)
1967	-14.4 C (6.1 F)
1968	-7.2 C (19.0 F)
1969	-8.9 C (16.0 F)
1970	-9.4 C (15.1 F)
1971	-7.8 C (18.0 F)
1972	-6.1 C (21.0 F)
1973	-5.6 C (21.9 F)
1974	-7.8 C (18.0 F)
1975	-11.1 C (12.0 F)
1976	-14.4 C (6.1 F)
1977	-15.6 C (3.9 F)
1978	-14.4 C (6.1 F)
1979	-18.0 C (-0.4 F)
1980	-6.5 C (20.3 F)
1981	-5.0 C (23.0 F)
1982	-10.5 C (13.1 F)
1983	-6.0 C (21.2 F)

Wettest day (Rx1day)

The wettest day of the year at Caribou Island, 1935 to 1983. The record is 78.7 mm (3.1 in) in 1968, marked on the chart; the median year is 36.8 mm (1.4 in).

Wettest day (Rx1day) at Caribou Island by year
Year	Wettest day (Rx1day)
1935	32.3 mm (1.3 in)
1936	19.1 mm (0.8 in)
1937	23.4 mm (0.9 in)
1938	43.2 mm (1.7 in)
1939	46.5 mm (1.8 in)
1940	30.7 mm (1.2 in)
1941	46.5 mm (1.8 in)
1942	43.2 mm (1.7 in)
1943	50.8 mm (2.0 in)
1944	62.5 mm (2.5 in)
1945	46.5 mm (1.8 in)
1946	41.4 mm (1.6 in)
1947	25.4 mm (1.0 in)
1948	35.6 mm (1.4 in)
1949	50.0 mm (2.0 in)
1950	43.2 mm (1.7 in)
1951	48.5 mm (1.9 in)
1952	27.2 mm (1.1 in)
1953	29.2 mm (1.1 in)
1954	24.4 mm (1.0 in)
1955	34.5 mm (1.4 in)
1956	31.2 mm (1.2 in)
1957	31.2 mm (1.2 in)
1958	64.0 mm (2.5 in)
1959	71.1 mm (2.8 in)
1960	28.4 mm (1.1 in)
1961	38.9 mm (1.5 in)
1962	36.8 mm (1.4 in)
1963	22.4 mm (0.9 in)
1964	62.2 mm (2.4 in)
1965	35.6 mm (1.4 in)
1966	31.2 mm (1.2 in)
1967	18.0 mm (0.7 in)
1968	78.7 mm (3.1 in)
1969	33.5 mm (1.3 in)
1970	44.7 mm (1.8 in)
1971	49.5 mm (1.9 in)
1972	43.2 mm (1.7 in)
1973	33.0 mm (1.3 in)
1974	35.1 mm (1.4 in)
1975	38.6 mm (1.5 in)
1976	19.3 mm (0.8 in)
1977	45.7 mm (1.8 in)
1978	46.5 mm (1.8 in)
1979	34.8 mm (1.4 in)
1980	29.8 mm (1.2 in)
1981	39.6 mm (1.6 in)
1982	38.0 mm (1.5 in)
1983	31.8 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Caribou Island, 1935 to 1983. The record is 95.6 mm (3.8 in) in 1978, marked on the chart; the median year is 60.9 mm (2.4 in).

Wettest five days (Rx5day) at Caribou Island by year
Year	Wettest five days (Rx5day)
1935	45.0 mm (1.8 in)
1936	35.6 mm (1.4 in)
1937	50.1 mm (2.0 in)
1938	72.5 mm (2.9 in)
1939	53.4 mm (2.1 in)
1940	59.8 mm (2.4 in)
1941	70.3 mm (2.8 in)
1942	87.2 mm (3.4 in)
1943	73.2 mm (2.9 in)
1944	80.0 mm (3.1 in)
1945	67.3 mm (2.6 in)
1946	69.3 mm (2.7 in)
1947	60.9 mm (2.4 in)
1948	52.1 mm (2.1 in)
1949	75.4 mm (3.0 in)
1950	62.0 mm (2.4 in)
1951	68.1 mm (2.7 in)
1952	43.6 mm (1.7 in)
1953	44.7 mm (1.8 in)
1954	54.8 mm (2.2 in)
1955	71.0 mm (2.8 in)
1956	57.7 mm (2.3 in)
1957	50.3 mm (2.0 in)
1958	76.7 mm (3.0 in)
1959	85.3 mm (3.4 in)
1960	81.8 mm (3.2 in)
1961	63.0 mm (2.5 in)
1962	56.6 mm (2.2 in)
1963	46.0 mm (1.8 in)
1964	62.2 mm (2.4 in)
1965	44.9 mm (1.8 in)
1966	47.7 mm (1.9 in)
1967	28.2 mm (1.1 in)
1968	90.7 mm (3.6 in)
1969	47.9 mm (1.9 in)
1970	60.8 mm (2.4 in)
1971	60.2 mm (2.4 in)
1972	81.8 mm (3.2 in)
1973	65.8 mm (2.6 in)
1974	55.1 mm (2.2 in)
1975	47.0 mm (1.9 in)
1976	37.5 mm (1.5 in)
1977	65.5 mm (2.6 in)
1978	95.6 mm (3.8 in)
1979	65.0 mm (2.6 in)
1980	43.0 mm (1.7 in)
1981	59.2 mm (2.3 in)
1982	62.4 mm (2.5 in)
1983	72.0 mm (2.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Caribou Island, 1935 to 1983. The record is 27 days in 1954, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Caribou Island by year
Year	Longest dry spell (CDD)
1935	11 days
1936	19 days
1937	24 days
1938	14 days
1939	19 days
1940	14 days
1941	13 days
1942	15 days
1943	11 days
1944	16 days
1945	25 days
1946	20 days
1947	17 days
1948	25 days
1949	23 days
1950	10 days
1951	12 days
1952	12 days
1953	18 days
1954	27 days
1955	16 days
1956	15 days
1957	20 days
1958	14 days
1959	12 days
1960	19 days
1961	21 days
1962	19 days
1963	23 days
1964	18 days
1965	13 days
1966	9 days
1967	19 days
1968	9 days
1969	16 days
1970	15 days
1971	9 days
1972	23 days
1973	14 days
1974	12 days
1975	25 days
1976	20 days
1977	15 days
1978	22 days
1979	19 days
1980	19 days
1981	23 days
1982	11 days
1983	27 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 Caribou Island standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Caribou Island 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 2026-10-13 (13 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).