Portage la Prairie Weather Records (CA005012279)

Record envelope, standing records and threshold days for Portage la Prairie (CA005012279), Manitoba, Canada, with 33 years of record.

Key Facts for Portage la Prairie

Portage la Prairie (CA005012279) 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 1886 to 1918, 33 years of record.
1,464 records set at Portage la Prairie still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Manitoba, Canada, 49.97 latitude, -98.30 longitude.
Elevation: 261 m (856 ft).
Period of record: 1886 to 1918, 33 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 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	9.4 C (48.9 F)	-41.7 C (-43.1 F)	n/a	n/a
Feb	14.4 C (57.9 F)	-43.3 C (-45.9 F)	n/a	n/a
Mar	21.1 C (70.0 F)	-37.8 C (-36.0 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-25.6 C (-14.1 F)	n/a	n/a
May	36.1 C (97.0 F)	-12.8 C (9.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	37.8 C (100.0 F)	3.3 C (37.9 F)	n/a	n/a
Aug	40.0 C (104.0 F)	-1.7 C (28.9 F)	n/a	n/a
Sep	40.0 C (104.0 F)	-7.2 C (19.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-21.1 C (-6.0 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-32.2 C (-26.0 F)	n/a	n/a
Dec	17.8 C (64.0 F)	-37.8 C (-36.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Portage la Prairie still stand. 1886 holds the most, with 73.

Standing records at Portage la Prairie by the year they were set
Year set	Standing records
1886	73
1887	46
1888	58
1889	55
1890	31
1891	55
1892	54
1893	35
1894	42
1895	44
1896	36
1897	49
1898	29
1899	62
1900	54
1901	17
1902	7
1903	52
1904	44
1905	45
1906	38
1907	51
1908	67
1909	50
1910	64
1911	45
1912	25
1913	48
1914	59
1915	48
1917	41
1918	40

Wettest Day of Each Month

Jun: 82.6 mm (3.3 in)

The wettest day on record for each calendar month at Portage la Prairie. The most was 82.6 mm (3.3 in) on 22 June 1911.

Record daily precipitation for each month at Portage la Prairie
Month	Record daily precipitation (mm)	Date
Jan	27.9 mm (1.1 in)	10 January 1911
Feb	15.2 mm (0.6 in)	4 February 1889
Mar	35.6 mm (1.4 in)	28 March 1896
Apr	58.7 mm (2.3 in)	28 April 1892
May	59.7 mm (2.4 in)	2 May 1887
Jun	82.6 mm (3.3 in)	22 June 1911
Jul	73.7 mm (2.9 in)	21 July 1897
Aug	70.6 mm (2.8 in)	10 August 1907
Sep	62.7 mm (2.5 in)	10 September 1914
Oct	25.4 mm (1.0 in)	25 October 1902
Nov	27.9 mm (1.1 in)	26 November 1910
Dec	17.8 mm (0.7 in)	9 December 1903

Period of Record Coverage

1886 to 1918

32 years of record at Portage la Prairie, 1886 to 1918. 12 years have data for under 90 percent of days and are left out of rankings: 1886, 1887, 1889, 1890, 1891, 1893, 1894, 1896 and others.

Days with data per year at Portage la Prairie
Year	Days with data	Share of year	Complete
1886	328	90%	No
1887	284	78%	No
1888	356	97%	Yes
1889	277	76%	No
1890	150	41%	No
1891	305	84%	No
1892	339	93%	Yes
1893	148	41%	No
1894	327	90%	No
1895	357	98%	Yes
1896	325	89%	No
1897	358	98%	Yes
1898	345	95%	Yes
1899	355	97%	Yes
1900	345	95%	Yes
1901	172	47%	No
1902	92	25%	No
1903	359	98%	Yes
1904	365	100%	Yes
1905	365	100%	Yes
1906	364	100%	Yes
1907	364	100%	Yes
1908	365	100%	Yes
1909	359	98%	Yes
1910	361	99%	Yes
1911	364	100%	Yes
1912	366	100%	Yes
1913	365	100%	Yes
1914	365	100%	Yes
1915	334	92%	Yes
1917	156	43%	No
1918	177	48%	No

Latest Records

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

Climate Trend

20 complete years, 1888 to 1914

One stripe for each of 20 complete years at Portage la Prairie, 1888 to 1914. Blue stripes are years cooler than the station's own mean of 1.8 C (35.3 F); red stripes are warmer. The coolest year was 1907, at 0.1 C (32.3 F), and the warmest was 1900, at 3.2 C (37.7 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Portage la Prairie as warming stripes, 1888 to 1914
Year	Annual mean temperature	Difference from the station mean
1888	1.0 C	-0.86 C
1892	1.4 C	-0.43 C
1894	2.5 C	+0.71 C
1895	1.3 C	-0.55 C
1897	1.7 C	-0.16 C
1898	2.2 C	+0.40 C
1899	1.0 C	-0.80 C
1900	3.2 C	+1.37 C
1903	1.9 C	+0.07 C
1904	0.5 C	-1.28 C
1905	2.0 C	+0.15 C
1906	2.3 C	+0.52 C
1907	0.1 C	-1.67 C
1908	2.9 C	+1.06 C
1909	1.6 C	-0.24 C
1910	3.0 C	+1.22 C
1911	1.5 C	-0.29 C
1912	1.8 C	+0.02 C
1913	2.1 C	+0.25 C
1914	2.3 C	+0.53 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

1886 to 1918

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)	40.0 C (104.0 F)	1886	35.0 C (95.0 F)	32
Coldest night (TNn)	-43.3 C (-45.9 F)	1899	-38.9 C (-38.0 F)	32
Wettest day (Rx1day)	82.6 mm (3.3 in)	1911	48.5 mm (1.9 in)	31
Wettest five days (Rx5day)	103.8 mm (4.1 in)	1891	63.7 mm (2.5 in)	31
Longest dry spell (CDD)	41 days	1915	23 days	31

Hottest day (TXx)

The hottest day of the year at Portage la Prairie, 1886 to 1918. The record is 40.0 C (104.0 F) in 1886, 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)
1886	40.0 C (104.0 F)
1887	34.4 C (93.9 F)
1888	36.7 C (98.1 F)
1889	40.0 C (104.0 F)
1890	22.8 C (73.0 F)
1891	35.0 C (95.0 F)
1892	32.2 C (90.0 F)
1893	35.0 C (95.0 F)
1894	35.6 C (96.1 F)
1895	31.1 C (88.0 F)
1896	33.9 C (93.0 F)
1897	34.4 C (93.9 F)
1898	35.6 C (96.1 F)
1899	33.3 C (91.9 F)
1900	38.3 C (100.9 F)
1901	35.0 C (95.0 F)
1902	21.1 C (70.0 F)
1903	35.0 C (95.0 F)
1904	30.6 C (87.1 F)
1905	32.2 C (90.0 F)
1906	37.2 C (99.0 F)
1907	34.4 C (93.9 F)
1908	35.0 C (95.0 F)
1909	31.7 C (89.1 F)
1910	37.8 C (100.0 F)
1911	31.1 C (88.0 F)
1912	36.1 C (97.0 F)
1913	33.3 C (91.9 F)
1914	37.2 C (99.0 F)
1915	35.0 C (95.0 F)
1917	35.6 C (96.1 F)
1918	31.1 C (88.0 F)

Coldest night (TNn)

The coldest night of the year at Portage la Prairie, 1886 to 1918. The record is -43.3 C (-45.9 F) in 1899, marked on the chart; the median year is -38.9 C (-38.0 F).

Coldest night (TNn) at Portage la Prairie by year
Year	Coldest night (TNn)
1886	-40.0 C (-40.0 F)
1887	-37.8 C (-36.0 F)
1888	-41.1 C (-42.0 F)
1889	-40.0 C (-40.0 F)
1890	-36.7 C (-34.1 F)
1891	-32.2 C (-26.0 F)
1892	-40.6 C (-41.1 F)
1893	-41.1 C (-42.0 F)
1894	-39.4 C (-38.9 F)
1895	-38.9 C (-38.0 F)
1896	-38.9 C (-38.0 F)
1897	-38.9 C (-38.0 F)
1898	-36.7 C (-34.1 F)
1899	-43.3 C (-45.9 F)
1900	-36.7 C (-34.1 F)
1901	-35.0 C (-31.0 F)
1902	-33.3 C (-27.9 F)
1903	-40.6 C (-41.1 F)
1904	-40.0 C (-40.0 F)
1905	-36.7 C (-34.1 F)
1906	-36.7 C (-34.1 F)
1907	-37.8 C (-36.0 F)
1908	-33.9 C (-29.0 F)
1909	-40.0 C (-40.0 F)
1910	-37.2 C (-35.0 F)
1911	-38.9 C (-38.0 F)
1912	-41.7 C (-43.1 F)
1913	-36.1 C (-33.0 F)
1914	-40.0 C (-40.0 F)
1915	-38.9 C (-38.0 F)
1917	-36.7 C (-34.1 F)
1918	-38.3 C (-36.9 F)

Wettest day (Rx1day)

The wettest day of the year at Portage la Prairie, 1886 to 1918. The record is 82.6 mm (3.3 in) in 1911, marked on the chart; the median year is 48.5 mm (1.9 in).

Wettest day (Rx1day) at Portage la Prairie by year
Year	Wettest day (Rx1day)
1886	n/a
1887	59.7 mm (2.4 in)
1888	45.7 mm (1.8 in)
1889	52.6 mm (2.1 in)
1890	15.2 mm (0.6 in)
1891	51.3 mm (2.0 in)
1892	58.7 mm (2.3 in)
1893	52.3 mm (2.1 in)
1894	59.2 mm (2.3 in)
1895	53.6 mm (2.1 in)
1896	41.4 mm (1.6 in)
1897	73.7 mm (2.9 in)
1898	21.6 mm (0.9 in)
1899	25.4 mm (1.0 in)
1900	47.5 mm (1.9 in)
1901	20.3 mm (0.8 in)
1902	38.1 mm (1.5 in)
1903	24.1 mm (0.9 in)
1904	48.5 mm (1.9 in)
1905	28.7 mm (1.1 in)
1906	45.5 mm (1.8 in)
1907	70.6 mm (2.8 in)
1908	21.6 mm (0.9 in)
1909	55.9 mm (2.2 in)
1910	50.8 mm (2.0 in)
1911	82.6 mm (3.3 in)
1912	50.8 mm (2.0 in)
1913	45.2 mm (1.8 in)
1914	62.7 mm (2.5 in)
1915	53.8 mm (2.1 in)
1917	8.6 mm (0.34 in)
1918	15.2 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Portage la Prairie, 1886 to 1918. The record is 103.8 mm (4.1 in) in 1891, marked on the chart; the median year is 63.7 mm (2.5 in).

Wettest five days (Rx5day) at Portage la Prairie by year
Year	Wettest five days (Rx5day)
1886	n/a
1887	71.2 mm (2.8 in)
1888	80.0 mm (3.1 in)
1889	70.9 mm (2.8 in)
1890	15.2 mm (0.6 in)
1891	103.8 mm (4.1 in)
1892	64.8 mm (2.6 in)
1893	71.1 mm (2.8 in)
1894	67.9 mm (2.7 in)
1895	58.9 mm (2.3 in)
1896	73.9 mm (2.9 in)
1897	100.1 mm (3.9 in)
1898	38.9 mm (1.5 in)
1899	33.3 mm (1.3 in)
1900	76.7 mm (3.0 in)
1901	56.6 mm (2.2 in)
1902	55.9 mm (2.2 in)
1903	28.4 mm (1.1 in)
1904	55.3 mm (2.2 in)
1905	49.2 mm (1.9 in)
1906	51.6 mm (2.0 in)
1907	77.4 mm (3.0 in)
1908	31.8 mm (1.3 in)
1909	65.0 mm (2.6 in)
1910	60.7 mm (2.4 in)
1911	100.9 mm (4.0 in)
1912	80.3 mm (3.2 in)
1913	70.9 mm (2.8 in)
1914	63.7 mm (2.5 in)
1915	63.2 mm (2.5 in)
1917	11.1 mm (0.4 in)
1918	19.1 mm (0.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Portage la Prairie, 1886 to 1918. The record is 41 days in 1915, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Portage la Prairie by year
Year	Longest dry spell (CDD)
1886	n/a
1887	14 days
1888	29 days
1889	21 days
1890	21 days
1891	27 days
1892	32 days
1893	20 days
1894	32 days
1895	19 days
1896	15 days
1897	18 days
1898	24 days
1899	20 days
1900	24 days
1901	22 days
1902	27 days
1903	19 days
1904	23 days
1905	19 days
1906	21 days
1907	31 days
1908	24 days
1909	21 days
1910	26 days
1911	33 days
1912	39 days
1913	34 days
1914	21 days
1915	41 days
1917	29 days
1918	17 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 27 May and the median first autumn frost on 17 September, which leaves a median of 111 days between them.

Frost dates and growing season at Portage la Prairie
Measure	Median, all years	Earliest period	Recent period (1888 to 1914)	Recent against earliest	Fitted trend
Last spring frost	27 May	n/a	27 May	n/a	n/a
First autumn frost	17 September	n/a	17 September	n/a	n/a
Growing days	111 days	n/a	111 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).