Almonte Weather Records (CA006100226)

Record envelope, standing records and threshold days for Almonte (CA006100226), Ontario, Canada, with 69 years of record.

Key Facts for Almonte

Almonte (CA006100226) is a weather station in Ontario, Canada at 45.18 latitude and -76.23 longitude, 125 m (410 ft) above sea level.
The station reports from 1912 to 1980, 69 years of record.
1,464 records set at Almonte still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Ontario, Canada, 45.18 latitude, -76.23 longitude.
Elevation: 125 m (410 ft).
Period of record: 1912 to 1980, 69 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 Almonte. 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 Almonte, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	10.6 C (51.1 F)	-37.8 C (-36.0 F)	n/a	n/a
Feb	11.1 C (52.0 F)	-38.9 C (-38.0 F)	n/a	n/a
Mar	22.8 C (73.0 F)	-31.1 C (-24.0 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-16.1 C (3.0 F)	n/a	n/a
May	34.4 C (93.9 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	36.1 C (97.0 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	37.8 C (100.0 F)	4.0 C (39.2 F)	n/a	n/a
Aug	36.7 C (98.1 F)	0.6 C (33.1 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-4.4 C (24.1 F)	n/a	n/a
Oct	27.2 C (81.0 F)	-10.0 C (14.0 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-25.6 C (-14.1 F)	n/a	n/a
Dec	12.2 C (54.0 F)	-36.1 C (-33.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Almonte still stand. 1916 holds the most, with 71.

Standing records at Almonte by the year they were set
Year set	Standing records
1912	63
1913	67
1914	70
1915	56
1916	71
1917	58
1918	60
1919	59
1920	47
1921	67
1922	19
1948	13
1949	45
1959	42
1960	29
1961	38
1962	51
1963	48
1964	49
1965	11
1968	22
1969	40
1970	39
1971	41
1972	31
1973	47
1974	42
1975	37
1976	49
1977	55
1978	37
1979	60
1980	1

Wettest Day of Each Month

Sep: 70.9 mm (2.8 in)

The wettest day on record for each calendar month at Almonte. The most was 70.9 mm (2.8 in) on 8 September 1919.

Record daily precipitation for each month at Almonte
Month	Record daily precipitation (mm)	Date
Jan	27.9 mm (1.1 in)	7 January 1915
Feb	38.1 mm (1.5 in)	10 February 1970
Mar	42.4 mm (1.7 in)	13 March 1977
Apr	35.8 mm (1.4 in)	4 April 1913
May	52.1 mm (2.1 in)	17 May 1916
Jun	66.5 mm (2.6 in)	13 June 1961
Jul	68.1 mm (2.7 in)	7 July 1961
Aug	49.8 mm (2.0 in)	22 August 1960
Sep	70.9 mm (2.8 in)	8 September 1919
Oct	47.5 mm (1.9 in)	31 October 1919
Nov	42.2 mm (1.7 in)	7 November 1912
Dec	33.5 mm (1.3 in)	14 December 1920

Period of Record Coverage

1912 to 1980

33 years of record at Almonte, 1912 to 1980. 17 years have data for under 90 percent of days and are left out of rankings: 1912, 1921, 1922, 1948, 1949, 1959, 1963, 1964 and others.

Days with data per year at Almonte
Year	Days with data	Share of year	Complete
1912	325	89%	No
1913	365	100%	Yes
1914	365	100%	Yes
1915	365	100%	Yes
1916	365	100%	Yes
1917	365	100%	Yes
1918	349	96%	Yes
1919	365	100%	Yes
1920	353	96%	Yes
1921	272	75%	No
1922	120	33%	No
1948	70	19%	No
1949	249	68%	No
1959	230	63%	No
1960	366	100%	Yes
1961	361	99%	Yes
1962	343	94%	Yes
1963	323	88%	No
1964	298	81%	No
1965	75	21%	No
1968	184	50%	No
1969	335	92%	Yes
1970	359	98%	Yes
1971	337	92%	Yes
1972	306	84%	No
1973	320	88%	No
1974	317	87%	No
1975	301	82%	No
1976	319	87%	No
1977	361	99%	Yes
1978	322	88%	No
1979	358	98%	Yes
1980	52	14%	No

Latest Records

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

Climate Trend

17 complete years, 1913 to 1979

One stripe for each of 17 complete years at Almonte, 1913 to 1979. Blue stripes are years cooler than the station's own mean of 5.3 C (41.6 F); red stripes are warmer. The coolest year was 1917, at 3.3 C (38.0 F), and the warmest was 1973, at 6.6 C (43.8 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Almonte as warming stripes, 1913 to 1979
Year	Annual mean temperature	Difference from the station mean
1913	6.2 C	+0.83 C
1914	4.4 C	-0.92 C
1915	6.1 C	+0.74 C
1916	5.1 C	-0.20 C
1917	3.3 C	-1.98 C
1919	5.7 C	+0.42 C
1960	5.6 C	+0.24 C
1961	5.6 C	+0.31 C
1962	4.7 C	-0.65 C
1964	5.8 C	+0.46 C
1970	4.9 C	-0.44 C
1971	5.0 C	-0.29 C
1973	6.6 C	+1.25 C
1974	4.8 C	-0.51 C
1975	5.9 C	+0.54 C
1977	5.4 C	+0.08 C
1979	5.5 C	+0.15 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

1912 to 1980

Yearly extremes at Almonte: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	1921	33.3 C (91.9 F)	33
Coldest night (TNn)	-38.9 C (-38.0 F)	1971	-32.8 C (-27.0 F)	33
Wettest day (Rx1day)	70.9 mm (2.8 in)	1919	40.6 mm (1.6 in)	33
Wettest five days (Rx5day)	83.8 mm (3.3 in)	1975	50.6 mm (2.0 in)	33
Longest dry spell (CDD)	22 days	1961	15 days	33

Hottest day (TXx)

The hottest day of the year at Almonte, 1912 to 1980. The record is 37.8 C (100.0 F) in 1921, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at Almonte by year
Year	Hottest day (TXx)
1912	34.4 C (93.9 F)
1913	35.0 C (95.0 F)
1914	33.3 C (91.9 F)
1915	31.7 C (89.1 F)
1916	37.2 C (99.0 F)
1917	36.1 C (97.0 F)
1918	35.0 C (95.0 F)
1919	36.1 C (97.0 F)
1920	33.3 C (91.9 F)
1921	37.8 C (100.0 F)
1922	22.8 C (73.0 F)
1948	29.4 C (84.9 F)
1949	36.7 C (98.1 F)
1959	34.4 C (93.9 F)
1960	31.7 C (89.1 F)
1961	31.7 C (89.1 F)
1962	34.4 C (93.9 F)
1963	35.0 C (95.0 F)
1964	35.6 C (96.1 F)
1965	10.6 C (51.1 F)
1968	32.8 C (91.0 F)
1969	33.3 C (91.9 F)
1970	32.8 C (91.0 F)
1971	33.3 C (91.9 F)
1972	31.1 C (88.0 F)
1973	33.9 C (93.0 F)
1974	32.2 C (90.0 F)
1975	36.7 C (98.1 F)
1976	31.7 C (89.1 F)
1977	35.6 C (96.1 F)
1978	34.0 C (93.2 F)
1979	32.5 C (90.5 F)
1980	7.5 C (45.5 F)

Coldest night (TNn)

The coldest night of the year at Almonte, 1912 to 1980. The record is -38.9 C (-38.0 F) in 1971, marked on the chart; the median year is -32.8 C (-27.0 F).

Coldest night (TNn) at Almonte by year
Year	Coldest night (TNn)
1912	-35.6 C (-32.1 F)
1913	-30.0 C (-22.0 F)
1914	-36.1 C (-33.0 F)
1915	-33.9 C (-29.0 F)
1916	-32.8 C (-27.0 F)
1917	-38.3 C (-36.9 F)
1918	-37.2 C (-35.0 F)
1919	-31.7 C (-25.1 F)
1920	-36.1 C (-33.0 F)
1921	-33.3 C (-27.9 F)
1922	-34.4 C (-29.9 F)
1948	-6.1 C (21.0 F)
1949	-22.8 C (-9.0 F)
1959	-23.9 C (-11.0 F)
1960	-29.4 C (-20.9 F)
1961	-32.8 C (-27.0 F)
1962	-37.8 C (-36.0 F)
1963	-36.7 C (-34.1 F)
1964	-32.8 C (-27.0 F)
1965	-32.8 C (-27.0 F)
1968	-32.2 C (-26.0 F)
1969	-28.9 C (-20.0 F)
1970	-33.9 C (-29.0 F)
1971	-38.9 C (-38.0 F)
1972	-28.9 C (-20.0 F)
1973	-35.0 C (-31.0 F)
1974	-33.9 C (-29.0 F)
1975	-31.1 C (-24.0 F)
1976	-31.7 C (-25.1 F)
1977	-35.6 C (-32.1 F)
1978	-31.0 C (-23.8 F)
1979	-34.5 C (-30.1 F)
1980	-26.5 C (-15.7 F)

Wettest day (Rx1day)

The wettest day of the year at Almonte, 1912 to 1980. The record is 70.9 mm (2.8 in) in 1919, marked on the chart; the median year is 40.6 mm (1.6 in).

Wettest day (Rx1day) at Almonte by year
Year	Wettest day (Rx1day)
1912	42.2 mm (1.7 in)
1913	37.3 mm (1.5 in)
1914	26.7 mm (1.1 in)
1915	42.2 mm (1.7 in)
1916	52.1 mm (2.1 in)
1917	35.6 mm (1.4 in)
1918	61.0 mm (2.4 in)
1919	70.9 mm (2.8 in)
1920	33.5 mm (1.3 in)
1921	43.2 mm (1.7 in)
1922	33.0 mm (1.3 in)
1948	34.5 mm (1.4 in)
1949	22.6 mm (0.9 in)
1959	57.2 mm (2.3 in)
1960	49.8 mm (2.0 in)
1961	68.1 mm (2.7 in)
1962	26.4 mm (1.0 in)
1963	69.6 mm (2.7 in)
1964	23.9 mm (0.9 in)
1965	10.2 mm (0.4 in)
1968	39.4 mm (1.6 in)
1969	40.6 mm (1.6 in)
1970	43.4 mm (1.7 in)
1971	24.1 mm (0.9 in)
1972	53.1 mm (2.1 in)
1973	44.7 mm (1.8 in)
1974	33.3 mm (1.3 in)
1975	67.1 mm (2.6 in)
1976	43.2 mm (1.7 in)
1977	42.4 mm (1.7 in)
1978	26.0 mm (1.0 in)
1979	29.0 mm (1.1 in)
1980	10.0 mm (0.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Almonte, 1912 to 1980. The record is 83.8 mm (3.3 in) in 1975, marked on the chart; the median year is 50.6 mm (2.0 in).

Wettest five days (Rx5day) at Almonte by year
Year	Wettest five days (Rx5day)
1912	48.8 mm (1.9 in)
1913	58.2 mm (2.3 in)
1914	48.2 mm (1.9 in)
1915	56.3 mm (2.2 in)
1916	77.5 mm (3.1 in)
1917	53.9 mm (2.1 in)
1918	62.2 mm (2.4 in)
1919	82.1 mm (3.2 in)
1920	45.2 mm (1.8 in)
1921	57.2 mm (2.3 in)
1922	49.1 mm (1.9 in)
1948	42.5 mm (1.7 in)
1949	31.8 mm (1.3 in)
1959	80.2 mm (3.2 in)
1960	50.6 mm (2.0 in)
1961	74.5 mm (2.9 in)
1962	37.8 mm (1.5 in)
1963	69.6 mm (2.7 in)
1964	31.5 mm (1.2 in)
1965	17.8 mm (0.7 in)
1968	66.8 mm (2.6 in)
1969	50.6 mm (2.0 in)
1970	51.1 mm (2.0 in)
1971	55.3 mm (2.2 in)
1972	67.6 mm (2.7 in)
1973	46.9 mm (1.8 in)
1974	41.6 mm (1.6 in)
1975	83.8 mm (3.3 in)
1976	66.8 mm (2.6 in)
1977	49.2 mm (1.9 in)
1978	32.6 mm (1.3 in)
1979	48.4 mm (1.9 in)
1980	17.0 mm (0.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Almonte, 1912 to 1980. The record is 22 days in 1961, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at Almonte by year
Year	Longest dry spell (CDD)
1912	19 days
1913	14 days
1914	16 days
1915	18 days
1916	17 days
1917	16 days
1918	12 days
1919	12 days
1920	15 days
1921	13 days
1922	12 days
1948	21 days
1949	15 days
1959	12 days
1960	18 days
1961	22 days
1962	17 days
1963	13 days
1964	12 days
1965	16 days
1968	15 days
1969	13 days
1970	21 days
1971	15 days
1972	21 days
1973	16 days
1974	14 days
1975	16 days
1976	14 days
1977	19 days
1978	21 days
1979	13 days
1980	9 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 Almonte standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Almonte 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).