Portage la Prairie Weather Records (CA005012280)

Record envelope, standing records and threshold days for Portage la Prairie (CA005012280), Manitoba, Canada, with 68 years of record.

Key Facts for Portage la Prairie

Portage la Prairie (CA005012280) is a weather station in Manitoba, Canada at 49.97 latitude and -98.30 longitude, 261 m (856 ft) above sea level.
The station reports from 1904 to 1971, 68 years of record.
1,464 records set at Portage la Prairie still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Portage la Prairie tied a daily record high maximum temperature of 33.3 C (91.9 F) on 15 August 1971.

About the Station

Location: Manitoba, Canada, 49.97 latitude, -98.30 longitude.
Elevation: 261 m (856 ft).
Period of record: 1904 to 1971, 68 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 Portage la Prairie. 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 Portage la Prairie, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	8.9 C (48.0 F)	-41.7 C (-43.1 F)	n/a	n/a
Feb	9.4 C (48.9 F)	-40.6 C (-41.1 F)	n/a	n/a
Mar	25.0 C (77.0 F)	-35.6 C (-32.1 F)	n/a	n/a
Apr	33.9 C (93.0 F)	-25.6 C (-14.1 F)	n/a	n/a
May	36.7 C (98.1 F)	-10.0 C (14.0 F)	n/a	n/a
Jun	38.9 C (102.0 F)	-3.9 C (25.0 F)	n/a	n/a
Jul	41.1 C (106.0 F)	2.2 C (36.0 F)	n/a	n/a
Aug	40.0 C (104.0 F)	0.0 C (32.0 F)	n/a	n/a
Sep	36.7 C (98.1 F)	-7.2 C (19.0 F)	n/a	n/a
Oct	31.7 C (89.1 F)	-16.7 C (1.9 F)	n/a	n/a
Nov	18.9 C (66.0 F)	-30.6 C (-23.1 F)	n/a	n/a
Dec	12.2 C (54.0 F)	-36.7 C (-34.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Portage la Prairie still stand. 1943 holds the most, with 49.

Standing records at Portage la Prairie by the year they were set
Year set	Standing records
1904	7
1905	17
1906	12
1907	27
1908	9
1909	7
1910	15
1911	3
1912	16
1913	9
1914	13
1915	19
1916	13
1917	17
1918	16
1919	18
1920	10
1921	6
1922	28
1923	20
1924	17
1925	16
1926	38
1927	24
1928	9
1929	12
1930	19
1931	19
1932	10
1933	9
1934	18
1935	17
1936	29
1937	7
1938	14
1939	16
1940	12
1941	10
1942	19
1943	49
1944	21
1945	22
1946	42
1947	29
1948	27
1949	48
1950	38
1951	31
1952	37
1953	30
1954	29
1955	27
1956	24
1957	22
1958	42
1959	34
1960	11
1961	26
1962	34
1963	33
1964	44
1965	33
1966	35
1967	25
1968	37
1969	21
1970	6
1971	10

All-Time Record Progression

8 new records

8 all-time records were set at Portage la Prairie between 17 January 1943 and 26 June 1969. Each dot is a new record.

When Portage la Prairie set new all-time records
Date	Kind	Detail
1943-01-17	Record low minimum temperature	Record low minimum temperature -38.9 C (-38.0 F)
1943-01-19	Record low maximum temperature	Record low maximum temperature -29.4 C (-20.9 F)
1943-01-20	Record low minimum temperature	Record low minimum temperature -41.7 C (-43.1 F)
1946-02-15	Record daily snowfall	Record daily snowfall 40.6 cm (16.0 in)
1950-01-29	Record low maximum temperature	Record low maximum temperature -30.0 C (-22.0 F)
1966-01-27	Record low maximum temperature	Record low maximum temperature -31.7 C (-25.1 F)
1966-02-17	Record low maximum temperature	Record low maximum temperature -32.8 C (-27.0 F)
1969-06-26	Record daily precipitation	Record daily precipitation 107.2 mm (4.2 in)

Wettest Day of Each Month

Jun: 107.2 mm (4.2 in)

The wettest day on record for each calendar month at Portage la Prairie. The most was 107.2 mm (4.2 in) on 26 June 1969.

Record daily precipitation for each month at Portage la Prairie
Month	Record daily precipitation (mm)	Date
Jan	18.3 mm (0.7 in)	26 January 1947
Feb	11.7 mm (0.5 in)	12 February 1956
Mar	32.5 mm (1.3 in)	14 March 1946
Apr	47.5 mm (1.9 in)	15 April 1912
May	44.2 mm (1.7 in)	5 May 1950
Jun	107.2 mm (4.2 in)	26 June 1969
Jul	62.5 mm (2.5 in)	28 July 1909
Aug	76.7 mm (3.0 in)	30 August 1944
Sep	71.4 mm (2.8 in)	21 September 1921
Oct	46.5 mm (1.8 in)	6 October 1924
Nov	18.0 mm (0.7 in)	18 November 1949
Dec	17.8 mm (0.7 in)	30 December 1965

Period of Record Coverage

1904 to 1971

68 years of record at Portage la Prairie, 1904 to 1971. 43 years have data for under 90 percent of days and are left out of rankings: 1904, 1905, 1906, 1907, 1908, 1909, 1910, 1911 and others.

Days with data per year at Portage la Prairie
Year	Days with data	Share of year	Complete
1904	138	38%	No
1905	183	50%	No
1906	184	50%	No
1907	184	50%	No
1908	164	45%	No
1909	180	49%	No
1910	182	50%	No
1911	171	47%	No
1912	186	51%	No
1913	182	50%	No
1914	186	51%	No
1915	214	59%	No
1916	213	58%	No
1917	212	58%	No
1918	207	57%	No
1919	184	50%	No
1920	180	49%	No
1921	171	47%	No
1922	183	50%	No
1923	183	50%	No
1924	183	50%	No
1925	184	50%	No
1926	261	72%	No
1927	304	83%	No
1928	184	50%	No
1929	214	59%	No
1930	214	59%	No
1931	214	59%	No
1932	213	58%	No
1933	214	59%	No
1934	214	59%	No
1935	214	59%	No
1936	214	58%	No
1937	214	59%	No
1938	214	59%	No
1939	214	59%	No
1940	214	58%	No
1941	184	50%	No
1942	274	75%	No
1943	365	100%	Yes
1944	366	100%	Yes
1945	185	51%	No
1946	363	99%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	364	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	359	98%	Yes
1953	334	92%	Yes
1954	249	68%	No
1955	283	78%	No
1956	350	96%	Yes
1957	363	99%	Yes
1958	333	91%	Yes
1959	333	91%	Yes
1960	364	99%	Yes
1961	356	98%	Yes
1962	359	98%	Yes
1963	363	99%	Yes
1964	365	100%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	334	92%	Yes
1971	269	74%	No

Latest Records

Latest records at Portage la Prairie
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 1971	Portage la Prairie, CA	daily high max (Tie)	33.3 C (91.9 F)	tie	38 years	4 of 100 (Routine)
28 July 1971	Portage la Prairie, CA	daily low max	15.0 C (59.0 F)	0.6 C (1.1 F)	21 years	13 of 100 (Routine)
27 July 1971	Portage la Prairie, CA	daily rain	14.2 mm (0.6 in)	3.0 mm (0.12 in)	29 years	17 of 100 (Routine)
18 April 1971	Portage la Prairie, CA	daily rain	33.8 mm (1.3 in)	13.5 mm (0.5 in)	56 years	46 of 100 (Notable)
1 April 1971	Portage la Prairie, CA	daily low max	-7.8 C (18.0 F)	0.6 C (1.1 F)	34 years	16 of 100 (Routine)
26 March 1971	Portage la Prairie, CA	daily snowfall	3.8 cm (1.5 in)	1.8 cm (0.7 in)	17 years	17 of 100 (Routine)
25 March 1971	Portage la Prairie, CA	daily snowfall	2.8 cm (1.1 in)	0.3 cm (0.1 in)	0 years	7 of 100 (Routine)
14 March 1971	Portage la Prairie, CA	daily high min	-1.1 C (30.0 F)	1.1 C (2.0 F)	24 years	14 of 100 (Routine)
11 March 1971	Portage la Prairie, CA	daily rain (Tie)	2.5 mm (0.10 in)	tie	4 years	1 of 100 (Routine)
11 March 1971	Portage la Prairie, CA	daily snowfall (Tie)	2.5 cm (1.0 in)	tie	4 years	1 of 100 (Routine)
5 March 1971	Portage la Prairie, CA	daily high min (Tie)	-5.6 C (21.9 F)	tie	21 years	3 of 100 (Routine)
4 March 1971	Portage la Prairie, CA	daily high max	6.1 C (43.0 F)	0.5 C (0.9 F)	20 years	12 of 100 (Routine)
25 February 1971	Portage la Prairie, CA	daily high max	7.8 C (46.0 F)	4.5 C (8.1 F)	17 years	17 of 100 (Routine)
17 February 1971	Portage la Prairie, CA	daily high min	-1.1 C (30.0 F)	1.7 C (3.1 F)	16 years	13 of 100 (Routine)
17 February 1971	Portage la Prairie, CA	daily high max	0.6 C (33.1 F)	1.2 C (2.2 F)	7 years	9 of 100 (Routine)
16 February 1971	Portage la Prairie, CA	daily high max	6.1 C (43.0 F)	3.3 C (5.9 F)	20 years	16 of 100 (Routine)
16 February 1971	Portage la Prairie, CA	daily high min	-8.9 C (16.0 F)	1.1 C (2.0 F)	20 years	13 of 100 (Routine)
15 February 1971	Portage la Prairie, CA	daily high min (Tie)	-9.4 C (15.1 F)	tie	8 years	2 of 100 (Routine)
14 February 1971	Portage la Prairie, CA	daily high max	4.4 C (39.9 F)	3.8 C (6.8 F)	20 years	17 of 100 (Routine)
13 February 1971	Portage la Prairie, CA	daily high max (Tie)	0.0 C (32.0 F)	tie	13 years	2 of 100 (Routine)

Climate Trend

20 complete years, 1943 to 1969

One stripe for each of 20 complete years at Portage la Prairie, 1943 to 1969. Blue stripes are years cooler than the station's own mean of 2.7 C (36.8 F); red stripes are warmer. The coolest year was 1950, at 0.6 C (33.1 F), and the warmest was 1952, at 4.3 C (39.7 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Portage la Prairie as warming stripes, 1943 to 1969
Year	Annual mean temperature	Difference from the station mean
1943	2.8 C	+0.11 C
1944	3.9 C	+1.24 C
1946	3.2 C	+0.50 C
1947	2.8 C	+0.17 C
1948	3.3 C	+0.59 C
1949	3.0 C	+0.38 C
1950	0.6 C	-2.06 C
1951	1.7 C	-1.01 C
1952	4.3 C	+1.62 C
1957	2.9 C	+0.26 C
1960	2.7 C	+0.00 C
1961	3.3 C	+0.60 C
1962	2.4 C	-0.28 C
1963	3.8 C	+1.10 C
1964	2.5 C	-0.12 C
1965	1.5 C	-1.18 C
1966	1.4 C	-1.31 C
1967	2.1 C	-0.58 C
1968	2.7 C	+0.06 C
1969	2.5 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

1904 to 1971

Yearly extremes at Portage la Prairie: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.1 C (106.0 F)	1936	35.0 C (95.0 F)	68
Coldest night (TNn)	-41.7 C (-43.1 F)	1943	-19.5 C (-3.0 F)	68
Wettest day (Rx1day)	107.2 mm (4.2 in)	1969	41.1 mm (1.6 in)	68
Wettest five days (Rx5day)	146.0 mm (5.7 in)	1969	57.7 mm (2.3 in)	68
Longest dry spell (CDD)	67 days	1952	26 days	68

Hottest day (TXx)

The hottest day of the year at Portage la Prairie, 1904 to 1971. The record is 41.1 C (106.0 F) in 1936, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Portage la Prairie by year
Year	Hottest day (TXx)
1904	31.1 C (88.0 F)
1905	30.6 C (87.1 F)
1906	36.7 C (98.1 F)
1907	30.6 C (87.1 F)
1908	35.0 C (95.0 F)
1909	31.7 C (89.1 F)
1910	37.8 C (100.0 F)
1911	32.2 C (90.0 F)
1912	36.1 C (97.0 F)
1913	33.3 C (91.9 F)
1914	36.1 C (97.0 F)
1915	33.9 C (93.0 F)
1916	35.0 C (95.0 F)
1917	37.8 C (100.0 F)
1918	37.2 C (99.0 F)
1919	33.9 C (93.0 F)
1920	33.9 C (93.0 F)
1921	37.2 C (99.0 F)
1922	36.1 C (97.0 F)
1923	34.4 C (93.9 F)
1924	32.2 C (90.0 F)
1925	35.0 C (95.0 F)
1926	34.4 C (93.9 F)
1927	31.7 C (89.1 F)
1928	36.7 C (98.1 F)
1929	36.7 C (98.1 F)
1930	35.6 C (96.1 F)
1931	38.9 C (102.0 F)
1932	35.6 C (96.1 F)
1933	37.8 C (100.0 F)
1934	36.7 C (98.1 F)
1935	35.0 C (95.0 F)
1936	41.1 C (106.0 F)
1937	36.1 C (97.0 F)
1938	35.6 C (96.1 F)
1939	36.7 C (98.1 F)
1940	37.8 C (100.0 F)
1941	36.1 C (97.0 F)
1942	36.1 C (97.0 F)
1943	33.3 C (91.9 F)
1944	35.0 C (95.0 F)
1945	34.4 C (93.9 F)
1946	36.7 C (98.1 F)
1947	37.2 C (99.0 F)
1948	35.0 C (95.0 F)
1949	40.0 C (104.0 F)
1950	34.4 C (93.9 F)
1951	36.1 C (97.0 F)
1952	36.7 C (98.1 F)
1953	34.4 C (93.9 F)
1954	32.2 C (90.0 F)
1955	35.0 C (95.0 F)
1956	35.6 C (96.1 F)
1957	33.9 C (93.0 F)
1958	35.6 C (96.1 F)
1959	36.7 C (98.1 F)
1960	35.0 C (95.0 F)
1961	36.1 C (97.0 F)
1962	33.3 C (91.9 F)
1963	32.2 C (90.0 F)
1964	35.0 C (95.0 F)
1965	34.4 C (93.9 F)
1966	34.4 C (93.9 F)
1967	36.1 C (97.0 F)
1968	35.0 C (95.0 F)
1969	35.0 C (95.0 F)
1970	36.7 C (98.1 F)
1971	33.3 C (91.9 F)

Coldest night (TNn)

The coldest night of the year at Portage la Prairie, 1904 to 1971. The record is -41.7 C (-43.1 F) in 1943, marked on the chart; the median year is -19.5 C (-3.0 F).

Coldest night (TNn) at Portage la Prairie by year
Year	Coldest night (TNn)
1904	-5.6 C (21.9 F)
1905	-14.4 C (6.1 F)
1906	-9.4 C (15.1 F)
1907	-10.0 C (14.0 F)
1908	-6.7 C (19.9 F)
1909	-11.1 C (12.0 F)
1910	-8.3 C (17.1 F)
1911	-9.4 C (15.1 F)
1912	-9.4 C (15.1 F)
1913	-13.3 C (8.1 F)
1914	-13.3 C (8.1 F)
1915	-8.3 C (17.1 F)
1916	-15.6 C (3.9 F)
1917	-13.3 C (8.1 F)
1918	-11.1 C (12.0 F)
1919	-15.6 C (3.9 F)
1920	-16.7 C (1.9 F)
1921	-9.4 C (15.1 F)
1922	-11.1 C (12.0 F)
1923	-20.6 C (-5.1 F)
1924	-16.7 C (1.9 F)
1925	-16.7 C (1.9 F)
1926	-33.9 C (-29.0 F)
1927	-37.8 C (-36.0 F)
1928	-15.0 C (5.0 F)
1929	-11.7 C (10.9 F)
1930	-13.9 C (7.0 F)
1931	-10.0 C (14.0 F)
1932	-18.3 C (-0.9 F)
1933	-11.7 C (10.9 F)
1934	-7.2 C (19.0 F)
1935	-12.8 C (9.0 F)
1936	-25.6 C (-14.1 F)
1937	-10.6 C (12.9 F)
1938	-12.8 C (9.0 F)
1939	-15.0 C (5.0 F)
1940	-10.6 C (12.9 F)
1941	-12.2 C (10.0 F)
1942	-31.1 C (-24.0 F)
1943	-41.7 C (-43.1 F)
1944	-33.9 C (-29.0 F)
1945	-34.4 C (-29.9 F)
1946	-35.0 C (-31.0 F)
1947	-32.8 C (-27.0 F)
1948	-38.9 C (-38.0 F)
1949	-40.0 C (-40.0 F)
1950	-37.2 C (-35.0 F)
1951	-37.8 C (-36.0 F)
1952	-32.2 C (-26.0 F)
1953	-32.8 C (-27.0 F)
1954	-37.8 C (-36.0 F)
1955	-30.6 C (-23.1 F)
1956	-35.6 C (-32.1 F)
1957	-36.1 C (-33.0 F)
1958	-37.2 C (-35.0 F)
1959	-34.4 C (-29.9 F)
1960	-31.7 C (-25.1 F)
1961	-35.0 C (-31.0 F)
1962	-37.8 C (-36.0 F)
1963	-35.0 C (-31.0 F)
1964	-33.3 C (-27.9 F)
1965	-34.4 C (-29.9 F)
1966	-40.6 C (-41.1 F)
1967	-37.2 C (-35.0 F)
1968	-38.3 C (-36.9 F)
1969	-33.3 C (-27.9 F)
1970	-36.1 C (-33.0 F)
1971	-29.4 C (-20.9 F)

Wettest day (Rx1day)

The wettest day of the year at Portage la Prairie, 1904 to 1971. The record is 107.2 mm (4.2 in) in 1969, marked on the chart; the median year is 41.1 mm (1.6 in).

Wettest day (Rx1day) at Portage la Prairie by year
Year	Wettest day (Rx1day)
1904	48.3 mm (1.9 in)
1905	49.5 mm (1.9 in)
1906	45.0 mm (1.8 in)
1907	66.0 mm (2.6 in)
1908	24.1 mm (0.9 in)
1909	62.5 mm (2.5 in)
1910	32.5 mm (1.3 in)
1911	61.5 mm (2.4 in)
1912	62.2 mm (2.4 in)
1913	40.4 mm (1.6 in)
1914	58.4 mm (2.3 in)
1915	52.1 mm (2.1 in)
1916	38.9 mm (1.5 in)
1917	38.9 mm (1.5 in)
1918	41.9 mm (1.6 in)
1919	38.6 mm (1.5 in)
1920	34.0 mm (1.3 in)
1921	71.4 mm (2.8 in)
1922	46.2 mm (1.8 in)
1923	58.9 mm (2.3 in)
1924	46.5 mm (1.8 in)
1925	30.5 mm (1.2 in)
1926	38.1 mm (1.5 in)
1927	41.4 mm (1.6 in)
1928	31.5 mm (1.2 in)
1929	34.3 mm (1.4 in)
1930	80.3 mm (3.2 in)
1931	39.9 mm (1.6 in)
1932	28.7 mm (1.1 in)
1933	49.0 mm (1.9 in)
1934	27.4 mm (1.1 in)
1935	57.2 mm (2.3 in)
1936	36.6 mm (1.4 in)
1937	55.6 mm (2.2 in)
1938	16.5 mm (0.6 in)
1939	29.7 mm (1.2 in)
1940	28.2 mm (1.1 in)
1941	32.3 mm (1.3 in)
1942	36.1 mm (1.4 in)
1943	29.7 mm (1.2 in)
1944	76.7 mm (3.0 in)
1945	48.3 mm (1.9 in)
1946	39.4 mm (1.6 in)
1947	26.2 mm (1.0 in)
1948	39.1 mm (1.5 in)
1949	42.2 mm (1.7 in)
1950	44.2 mm (1.7 in)
1951	25.9 mm (1.0 in)
1952	39.6 mm (1.6 in)
1953	36.6 mm (1.4 in)
1954	43.9 mm (1.7 in)
1955	36.3 mm (1.4 in)
1956	40.9 mm (1.6 in)
1957	43.2 mm (1.7 in)
1958	39.4 mm (1.6 in)
1959	41.1 mm (1.6 in)
1960	71.4 mm (2.8 in)
1961	48.8 mm (1.9 in)
1962	46.2 mm (1.8 in)
1963	42.4 mm (1.7 in)
1964	48.8 mm (1.9 in)
1965	27.2 mm (1.1 in)
1966	41.1 mm (1.6 in)
1967	43.7 mm (1.7 in)
1968	53.3 mm (2.1 in)
1969	107.2 mm (4.2 in)
1970	34.3 mm (1.4 in)
1971	34.3 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Portage la Prairie, 1904 to 1971. The record is 146.0 mm (5.7 in) in 1969, marked on the chart; the median year is 57.7 mm (2.3 in).

Wettest five days (Rx5day) at Portage la Prairie by year
Year	Wettest five days (Rx5day)
1904	53.4 mm (2.1 in)
1905	56.7 mm (2.2 in)
1906	56.7 mm (2.2 in)
1907	73.6 mm (2.9 in)
1908	32.0 mm (1.3 in)
1909	71.4 mm (2.8 in)
1910	55.6 mm (2.2 in)
1911	78.0 mm (3.1 in)
1912	72.9 mm (2.9 in)
1913	71.9 mm (2.8 in)
1914	61.4 mm (2.4 in)
1915	58.9 mm (2.3 in)
1916	53.4 mm (2.1 in)
1917	39.4 mm (1.6 in)
1918	44.4 mm (1.7 in)
1919	45.0 mm (1.8 in)
1920	48.7 mm (1.9 in)
1921	113.8 mm (4.5 in)
1922	59.7 mm (2.4 in)
1923	97.0 mm (3.8 in)
1924	94.7 mm (3.7 in)
1925	41.7 mm (1.6 in)
1926	70.0 mm (2.8 in)
1927	57.2 mm (2.3 in)
1928	41.1 mm (1.6 in)
1929	38.1 mm (1.5 in)
1930	97.8 mm (3.9 in)
1931	71.4 mm (2.8 in)
1932	54.6 mm (2.1 in)
1933	55.3 mm (2.2 in)
1934	42.1 mm (1.7 in)
1935	124.7 mm (4.9 in)
1936	46.2 mm (1.8 in)
1937	128.6 mm (5.1 in)
1938	28.4 mm (1.1 in)
1939	64.1 mm (2.5 in)
1940	44.9 mm (1.8 in)
1941	63.0 mm (2.5 in)
1942	58.2 mm (2.3 in)
1943	44.7 mm (1.8 in)
1944	139.0 mm (5.5 in)
1945	60.7 mm (2.4 in)
1946	52.1 mm (2.1 in)
1947	41.4 mm (1.6 in)
1948	40.6 mm (1.6 in)
1949	60.0 mm (2.4 in)
1950	63.0 mm (2.5 in)
1951	40.9 mm (1.6 in)
1952	42.9 mm (1.7 in)
1953	59.9 mm (2.4 in)
1954	63.4 mm (2.5 in)
1955	74.4 mm (2.9 in)
1956	66.8 mm (2.6 in)
1957	43.2 mm (1.7 in)
1958	56.4 mm (2.2 in)
1959	82.3 mm (3.2 in)
1960	76.5 mm (3.0 in)
1961	57.0 mm (2.2 in)
1962	64.0 mm (2.5 in)
1963	50.1 mm (2.0 in)
1964	59.7 mm (2.4 in)
1965	44.0 mm (1.7 in)
1966	45.2 mm (1.8 in)
1967	54.3 mm (2.1 in)
1968	62.2 mm (2.4 in)
1969	146.0 mm (5.7 in)
1970	59.8 mm (2.4 in)
1971	55.3 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Portage la Prairie, 1904 to 1971. The record is 67 days in 1952, marked on the chart; the median year is 26 days.

Longest dry spell (CDD) at Portage la Prairie by year
Year	Longest dry spell (CDD)
1904	20 days
1905	30 days
1906	23 days
1907	28 days
1908	23 days
1909	28 days
1910	15 days
1911	9 days
1912	22 days
1913	33 days
1914	28 days
1915	31 days
1916	20 days
1917	24 days
1918	17 days
1919	19 days
1920	29 days
1921	25 days
1922	16 days
1923	26 days
1924	22 days
1925	28 days
1926	22 days
1927	17 days
1928	34 days
1929	22 days
1930	18 days
1931	28 days
1932	25 days
1933	24 days
1934	26 days
1935	13 days
1936	21 days
1937	13 days
1938	30 days
1939	21 days
1940	24 days
1941	19 days
1942	31 days
1943	42 days
1944	28 days
1945	37 days
1946	28 days
1947	33 days
1948	32 days
1949	36 days
1950	16 days
1951	22 days
1952	67 days
1953	34 days
1954	25 days
1955	24 days
1956	40 days
1957	21 days
1958	18 days
1959	31 days
1960	29 days
1961	56 days
1962	25 days
1963	30 days
1964	41 days
1965	34 days
1966	18 days
1967	32 days
1968	41 days
1969	28 days
1970	24 days
1971	28 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

20 years with a frost

Across 20 years with a frost, the median last spring frost at Portage la Prairie falls on 19 May and the median first autumn frost on 26 September, which leaves a median of 135 days between them.

Frost dates and growing season at Portage la Prairie
Measure	Median, all years	Earliest period	Recent period (1943 to 1969)	Recent against earliest	Fitted trend
Last spring frost	19 May	n/a	19 May	n/a	n/a
First autumn frost	26 September	n/a	26 September	n/a	n/a
Growing days	135 days	n/a	135 days	n/a	n/a

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