Renfrew Sand Point Weather Records (CA006107004)

Record envelope, standing records and threshold days for Renfrew Sand Point (CA006107004), Ontario, Canada, with 31 years of record.

Key Facts for Renfrew Sand Point

Renfrew Sand Point (CA006107004) is a weather station in Ontario, Canada at 45.48 latitude and -76.43 longitude, 127 m (417 ft) above sea level.
The station reports from 1929 to 1959, 31 years of record.
1,464 records set at Renfrew Sand Point still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.

About the Station

Location: Ontario, Canada, 45.48 latitude, -76.43 longitude.
Elevation: 127 m (417 ft).
Period of record: 1929 to 1959, 31 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 Renfrew Sand Point. 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 Renfrew Sand Point, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	11.1 C (52.0 F)	-38.9 C (-38.0 F)	n/a	n/a
Feb	11.1 C (52.0 F)	-37.8 C (-36.0 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-37.8 C (-36.0 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-17.2 C (1.0 F)	n/a	n/a
May	33.3 C (91.9 F)	-5.0 C (23.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	1.1 C (34.0 F)	n/a	n/a
Jul	37.8 C (100.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	38.3 C (100.9 F)	2.2 C (36.0 F)	n/a	n/a
Sep	35.6 C (96.1 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	29.4 C (84.9 F)	-12.2 C (10.0 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-23.3 C (-9.9 F)	n/a	n/a
Dec	15.0 C (59.0 F)	-38.3 C (-36.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Renfrew Sand Point still stand. 1934 holds the most, with 83.

Standing records at Renfrew Sand Point by the year they were set
Year set	Standing records
1929	23
1930	61
1931	43
1932	62
1933	76
1934	83
1935	50
1936	71
1937	32
1938	40
1939	48
1940	64
1941	36
1942	54
1943	44
1944	31
1945	60
1946	53
1947	56
1948	44
1949	50
1950	48
1951	33
1952	22
1953	53
1954	39
1955	48
1956	36
1957	41
1958	36
1959	27

Wettest Day of Each Month

Oct: 75.7 mm (3.0 in)

The wettest day on record for each calendar month at Renfrew Sand Point. The most was 75.7 mm (3.0 in) on 15 October 1955.

Record daily precipitation for each month at Renfrew Sand Point
Month	Record daily precipitation (mm)	Date
Jan	30.5 mm (1.2 in)	30 January 1946
Feb	33.8 mm (1.3 in)	8 February 1941
Mar	53.1 mm (2.1 in)	17 March 1936
Apr	47.8 mm (1.9 in)	15 April 1956
May	39.4 mm (1.6 in)	26 May 1956
Jun	52.3 mm (2.1 in)	28 June 1957
Jul	63.0 mm (2.5 in)	29 July 1939
Aug	53.8 mm (2.1 in)	1 August 1938
Sep	60.5 mm (2.4 in)	20 September 1957
Oct	75.7 mm (3.0 in)	15 October 1955
Nov	30.5 mm (1.2 in)	19 November 1948
Dec	43.2 mm (1.7 in)	12 December 1944

Period of Record Coverage

1929 to 1959

31 years of record at Renfrew Sand Point, 1929 to 1959. 2 years have data for under 90 percent of days and are left out of rankings: 1929, 1959.

Days with data per year at Renfrew Sand Point
Year	Days with data	Share of year	Complete
1929	122	33%	No
1930	364	100%	Yes
1931	365	100%	Yes
1932	365	100%	Yes
1933	365	100%	Yes
1934	365	100%	Yes
1935	365	100%	Yes
1936	366	100%	Yes
1937	364	100%	Yes
1938	334	92%	Yes
1939	363	99%	Yes
1940	366	100%	Yes
1941	359	98%	Yes
1942	364	100%	Yes
1943	364	100%	Yes
1944	366	100%	Yes
1945	365	100%	Yes
1946	365	100%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	363	99%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	348	95%	Yes
1954	362	99%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	363	99%	Yes
1959	225	62%	No

Latest Records

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

Climate Trend

27 complete years, 1930 to 1958

One stripe for each of 27 complete years at Renfrew Sand Point, 1930 to 1958. Blue stripes are years cooler than the station's own mean of 4.9 C (40.9 F); red stripes are warmer. The coolest year was 1934, at 2.5 C (36.6 F), and the warmest was 1949, at 6.5 C (43.7 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at Renfrew Sand Point as warming stripes, 1930 to 1958
Year	Annual mean temperature	Difference from the station mean
1930	5.7 C	+0.75 C
1931	5.6 C	+0.69 C
1932	4.3 C	-0.65 C
1933	3.5 C	-1.41 C
1934	2.5 C	-2.41 C
1935	2.8 C	-2.14 C
1936	2.7 C	-2.24 C
1937	4.6 C	-0.36 C
1939	3.1 C	-1.85 C
1940	2.6 C	-2.36 C
1941	5.8 C	+0.86 C
1942	5.9 C	+1.00 C
1943	4.4 C	-0.56 C
1944	5.7 C	+0.73 C
1945	5.7 C	+0.71 C
1946	6.1 C	+1.20 C
1947	5.6 C	+0.64 C
1948	6.2 C	+1.21 C
1949	6.5 C	+1.55 C
1950	4.9 C	0.00 C
1951	5.3 C	+0.40 C
1952	6.4 C	+1.42 C
1954	5.4 C	+0.46 C
1955	6.3 C	+1.40 C
1956	5.0 C	+0.03 C
1957	6.0 C	+1.08 C
1958	4.9 C	-0.08 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

1929 to 1959

Yearly extremes at Renfrew Sand Point: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	1944	34.4 C (93.9 F)	31
Coldest night (TNn)	-38.9 C (-38.0 F)	1957	-33.3 C (-27.9 F)	31
Wettest day (Rx1day)	75.7 mm (3.0 in)	1955	38.1 mm (1.5 in)	31
Wettest five days (Rx5day)	110.1 mm (4.3 in)	1957	57.4 mm (2.3 in)	31
Longest dry spell (CDD)	22 days	1939	15 days	31

Hottest day (TXx)

The hottest day of the year at Renfrew Sand Point, 1929 to 1959. The record is 38.3 C (100.9 F) in 1944, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at Renfrew Sand Point by year
Year	Hottest day (TXx)
1929	34.4 C (93.9 F)
1930	32.2 C (90.0 F)
1931	36.7 C (98.1 F)
1932	32.2 C (90.0 F)
1933	34.4 C (93.9 F)
1934	34.4 C (93.9 F)
1935	32.2 C (90.0 F)
1936	32.2 C (90.0 F)
1937	35.6 C (96.1 F)
1938	33.3 C (91.9 F)
1939	32.2 C (90.0 F)
1940	31.1 C (88.0 F)
1941	37.8 C (100.0 F)
1942	36.7 C (98.1 F)
1943	34.4 C (93.9 F)
1944	38.3 C (100.9 F)
1945	33.3 C (91.9 F)
1946	35.6 C (96.1 F)
1947	37.2 C (99.0 F)
1948	35.6 C (96.1 F)
1949	37.8 C (100.0 F)
1950	33.9 C (93.0 F)
1951	32.2 C (90.0 F)
1952	33.3 C (91.9 F)
1953	37.2 C (99.0 F)
1954	32.2 C (90.0 F)
1955	37.8 C (100.0 F)
1956	35.6 C (96.1 F)
1957	35.0 C (95.0 F)
1958	32.8 C (91.0 F)
1959	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Renfrew Sand Point, 1929 to 1959. The record is -38.9 C (-38.0 F) in 1957, marked on the chart; the median year is -33.3 C (-27.9 F).

Coldest night (TNn) at Renfrew Sand Point by year
Year	Coldest night (TNn)
1929	-30.0 C (-22.0 F)
1930	-32.2 C (-26.0 F)
1931	-30.0 C (-22.0 F)
1932	-30.0 C (-22.0 F)
1933	-37.8 C (-36.0 F)
1934	-37.8 C (-36.0 F)
1935	-36.1 C (-33.0 F)
1936	-33.3 C (-27.9 F)
1937	-32.2 C (-26.0 F)
1938	-37.8 C (-36.0 F)
1939	-32.2 C (-26.0 F)
1940	-32.2 C (-26.0 F)
1941	-33.3 C (-27.9 F)
1942	-38.3 C (-36.9 F)
1943	-37.2 C (-35.0 F)
1944	-31.1 C (-24.0 F)
1945	-32.8 C (-27.0 F)
1946	-31.1 C (-24.0 F)
1947	-36.7 C (-34.1 F)
1948	-35.0 C (-31.0 F)
1949	-31.1 C (-24.0 F)
1950	-35.6 C (-32.1 F)
1951	-37.8 C (-36.0 F)
1952	-37.8 C (-36.0 F)
1953	-27.8 C (-18.0 F)
1954	-33.9 C (-29.0 F)
1955	-33.3 C (-27.9 F)
1956	-27.2 C (-17.0 F)
1957	-38.9 C (-38.0 F)
1958	-33.9 C (-29.0 F)
1959	-36.1 C (-33.0 F)

Wettest day (Rx1day)

The wettest day of the year at Renfrew Sand Point, 1929 to 1959. The record is 75.7 mm (3.0 in) in 1955, marked on the chart; the median year is 38.1 mm (1.5 in).

Wettest day (Rx1day) at Renfrew Sand Point by year
Year	Wettest day (Rx1day)
1929	15.2 mm (0.6 in)
1930	43.7 mm (1.7 in)
1931	33.0 mm (1.3 in)
1932	36.3 mm (1.4 in)
1933	43.7 mm (1.7 in)
1934	29.7 mm (1.2 in)
1935	38.1 mm (1.5 in)
1936	53.1 mm (2.1 in)
1937	48.0 mm (1.9 in)
1938	53.8 mm (2.1 in)
1939	63.0 mm (2.5 in)
1940	22.9 mm (0.9 in)
1941	37.6 mm (1.5 in)
1942	54.1 mm (2.1 in)
1943	48.8 mm (1.9 in)
1944	43.2 mm (1.7 in)
1945	42.2 mm (1.7 in)
1946	30.5 mm (1.2 in)
1947	46.0 mm (1.8 in)
1948	30.5 mm (1.2 in)
1949	20.6 mm (0.8 in)
1950	28.4 mm (1.1 in)
1951	27.7 mm (1.1 in)
1952	41.9 mm (1.6 in)
1953	27.9 mm (1.1 in)
1954	33.0 mm (1.3 in)
1955	75.7 mm (3.0 in)
1956	47.8 mm (1.9 in)
1957	60.5 mm (2.4 in)
1958	32.3 mm (1.3 in)
1959	30.0 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Renfrew Sand Point, 1929 to 1959. The record is 110.1 mm (4.3 in) in 1957, marked on the chart; the median year is 57.4 mm (2.3 in).

Wettest five days (Rx5day) at Renfrew Sand Point by year
Year	Wettest five days (Rx5day)
1929	22.3 mm (0.9 in)
1930	56.2 mm (2.2 in)
1931	43.7 mm (1.7 in)
1932	43.5 mm (1.7 in)
1933	43.7 mm (1.7 in)
1934	48.8 mm (1.9 in)
1935	55.6 mm (2.2 in)
1936	78.8 mm (3.1 in)
1937	68.3 mm (2.7 in)
1938	88.1 mm (3.5 in)
1939	90.7 mm (3.6 in)
1940	46.5 mm (1.8 in)
1941	73.2 mm (2.9 in)
1942	56.6 mm (2.2 in)
1943	52.9 mm (2.1 in)
1944	59.1 mm (2.3 in)
1945	63.0 mm (2.5 in)
1946	50.0 mm (2.0 in)
1947	71.1 mm (2.8 in)
1948	64.7 mm (2.5 in)
1949	62.2 mm (2.4 in)
1950	53.1 mm (2.1 in)
1951	57.4 mm (2.3 in)
1952	73.1 mm (2.9 in)
1953	72.9 mm (2.9 in)
1954	52.4 mm (2.1 in)
1955	105.5 mm (4.2 in)
1956	65.1 mm (2.6 in)
1957	110.1 mm (4.3 in)
1958	50.8 mm (2.0 in)
1959	55.1 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Renfrew Sand Point, 1929 to 1959. The record is 22 days in 1939, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at Renfrew Sand Point by year
Year	Longest dry spell (CDD)
1929	14 days
1930	18 days
1931	15 days
1932	12 days
1933	11 days
1934	17 days
1935	17 days
1936	12 days
1937	13 days
1938	9 days
1939	22 days
1940	16 days
1941	18 days
1942	15 days
1943	19 days
1944	17 days
1945	11 days
1946	10 days
1947	21 days
1948	18 days
1949	13 days
1950	12 days
1951	15 days
1952	17 days
1953	12 days
1954	10 days
1955	16 days
1956	15 days
1957	15 days
1958	20 days
1959	16 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

27 years with a frost

Across 27 years with a frost, the median last spring frost at Renfrew Sand Point falls on 16 May and the median first autumn frost on 26 September, which leaves a median of 133 days between them.

Fitted over all years, the growing season changes by +3.1 days per decade at this station.

Frost dates and growing season at Renfrew Sand Point
Measure	Median, all years	Earliest period	Recent period (1930 to 1958)	Recent against earliest	Fitted trend
Last spring frost	16 May	n/a	16 May	n/a	-2.5 days per decade
First autumn frost	26 September	n/a	26 September	n/a	+0.6 days per decade
Growing days	133 days	n/a	133 days	n/a	+3.1 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 Renfrew Sand Point standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Renfrew Sand Point 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).