Imperial Weather Records (CA004013440)

Record envelope, standing records and threshold days for Imperial (CA004013440), Saskatchewan, Canada, with 56 years of record.

Key Facts for Imperial

Imperial (CA004013440) is a weather station in Saskatchewan, Canada at 51.37 latitude and -105.53 longitude, 556 m (1,824 ft) above sea level.
The station reports from 1911 to 1966, 56 years of record.
1,464 records set at Imperial still stand.
Records are tracked for tmax, tmin, snow: an element needs 30 years of data to be eligible.

About the Station

Location: Saskatchewan, Canada, 51.37 latitude, -105.53 longitude.
Elevation: 556 m (1,824 ft).
Period of record: 1911 to 1966, 56 years.
Eligible elements: tmax, tmin, 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 Imperial. 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 Imperial, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	7.2 C (45.0 F)	-45.6 C (-50.1 F)	n/a	n/a
Feb	18.3 C (64.9 F)	-43.9 C (-47.0 F)	n/a	n/a
Mar	18.3 C (64.9 F)	-38.9 C (-38.0 F)	n/a	n/a
Apr	30.0 C (86.0 F)	-25.6 C (-14.1 F)	n/a	n/a
May	33.9 C (93.0 F)	-11.1 C (12.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	-5.6 C (21.9 F)	n/a	n/a
Jul	38.3 C (100.9 F)	-4.4 C (24.1 F)	n/a	n/a
Aug	39.4 C (102.9 F)	-1.1 C (30.0 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-11.7 C (10.9 F)	n/a	n/a
Oct	29.4 C (84.9 F)	-26.7 C (-16.1 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-31.7 C (-25.1 F)	n/a	n/a
Dec	10.6 C (51.1 F)	-40.6 C (-41.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Imperial still stand. 1919 holds the most, with 94.

Standing records at Imperial by the year they were set
Year set	Standing records
1911	14
1912	44
1913	56
1914	67
1915	59
1916	61
1917	71
1918	62
1919	94
1920	30
1921	52
1922	32
1923	38
1924	44
1925	48
1926	64
1927	4
1951	20
1952	43
1953	39
1954	76
1955	44
1956	44
1957	35
1958	29
1959	39
1960	25
1961	57
1962	33
1963	45
1964	29
1965	35
1966	31

Wettest Day of Each Month

Jul: 82.0 mm (3.2 in)

The wettest day on record for each calendar month at Imperial. The most was 82.0 mm (3.2 in) on 9 July 1954.

Record daily precipitation for each month at Imperial
Month	Record daily precipitation (mm)	Date
Jan	17.8 mm (0.7 in)	15 January 1920
Feb	20.3 mm (0.8 in)	16 February 1921
Mar	25.4 mm (1.0 in)	24 March 1922
Apr	31.8 mm (1.3 in)	23 April 1957
May	62.2 mm (2.4 in)	15 May 1915
Jun	77.5 mm (3.1 in)	26 June 1959
Jul	82.0 mm (3.2 in)	9 July 1954
Aug	45.0 mm (1.8 in)	7 August 1922
Sep	47.8 mm (1.9 in)	19 September 1921
Oct	36.6 mm (1.4 in)	4 October 1914
Nov	17.8 mm (0.7 in)	13 November 1926
Dec	21.6 mm (0.9 in)	9 December 1918

Period of Record Coverage

1911 to 1966

33 years of record at Imperial, 1911 to 1966. 7 years have data for under 90 percent of days and are left out of rankings: 1911, 1920, 1925, 1927, 1951, 1953, 1966.

Days with data per year at Imperial
Year	Days with data	Share of year	Complete
1911	51	14%	No
1912	335	92%	Yes
1913	365	100%	Yes
1914	332	91%	Yes
1915	365	100%	Yes
1916	365	100%	Yes
1917	365	100%	Yes
1918	365	100%	Yes
1919	365	100%	Yes
1920	306	84%	No
1921	365	100%	Yes
1922	365	100%	Yes
1923	362	99%	Yes
1924	364	99%	Yes
1925	304	83%	No
1926	364	100%	Yes
1927	59	16%	No
1951	111	30%	No
1952	355	97%	Yes
1953	297	81%	No
1954	365	100%	Yes
1955	365	100%	Yes
1956	353	96%	Yes
1957	333	91%	Yes
1958	364	100%	Yes
1959	365	100%	Yes
1960	365	100%	Yes
1961	365	100%	Yes
1962	357	98%	Yes
1963	362	99%	Yes
1964	364	99%	Yes
1965	362	99%	Yes
1966	271	74%	No

Latest Records

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

Climate Trend

22 complete years, 1913 to 1965

One stripe for each of 22 complete years at Imperial, 1913 to 1965. Blue stripes are years cooler than the station's own mean of 1.9 C (35.4 F); red stripes are warmer. The coolest year was 1916, at -0.7 C (30.7 F), and the warmest was 1963, at 3.5 C (38.2 F). The strongest colour marks a difference of 2.7 C (4.9 F).

Annual mean temperature at Imperial as warming stripes, 1913 to 1965
Year	Annual mean temperature	Difference from the station mean
1913	1.1 C	-0.82 C
1915	1.9 C	+0.01 C
1916	-0.7 C	-2.61 C
1917	-0.6 C	-2.46 C
1918	1.7 C	-0.21 C
1919	1.2 C	-0.70 C
1921	2.5 C	+0.63 C
1922	1.8 C	-0.08 C
1923	2.5 C	+0.56 C
1924	1.7 C	-0.17 C
1926	2.6 C	+0.71 C
1952	2.3 C	+0.36 C
1954	2.0 C	+0.15 C
1955	0.8 C	-1.12 C
1958	2.7 C	+0.84 C
1959	2.7 C	+0.81 C
1960	2.8 C	+0.87 C
1961	3.2 C	+1.31 C
1962	2.8 C	+0.89 C
1963	3.5 C	+1.56 C
1964	2.6 C	+0.66 C
1965	0.8 C	-1.13 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

1911 to 1966

Yearly extremes at Imperial: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.4 C (102.9 F)	1961	35.0 C (95.0 F)	33
Coldest night (TNn)	-45.6 C (-50.1 F)	1916	-38.3 C (-36.9 F)	33
Wettest day (Rx1day)	82.0 mm (3.2 in)	1954	38.3 mm (1.5 in)	32
Wettest five days (Rx5day)	124.2 mm (4.9 in)	1959	54.8 mm (2.2 in)	32
Longest dry spell (CDD)	77 days	1961	33 days	32

Hottest day (TXx)

The hottest day of the year at Imperial, 1911 to 1966. The record is 39.4 C (102.9 F) in 1961, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Imperial by year
Year	Hottest day (TXx)
1911	3.9 C (39.0 F)
1912	35.6 C (96.1 F)
1913	31.1 C (88.0 F)
1914	36.7 C (98.1 F)
1915	35.6 C (96.1 F)
1916	31.7 C (89.1 F)
1917	33.9 C (93.0 F)
1918	38.3 C (100.9 F)
1919	37.8 C (100.0 F)
1920	36.1 C (97.0 F)
1921	33.9 C (93.0 F)
1922	32.8 C (91.0 F)
1923	33.3 C (91.9 F)
1924	35.0 C (95.0 F)
1925	36.1 C (97.0 F)
1926	35.6 C (96.1 F)
1927	2.8 C (37.0 F)
1951	28.3 C (82.9 F)
1952	36.1 C (97.0 F)
1953	33.9 C (93.0 F)
1954	31.7 C (89.1 F)
1955	35.6 C (96.1 F)
1956	35.6 C (96.1 F)
1957	36.1 C (97.0 F)
1958	37.2 C (99.0 F)
1959	36.1 C (97.0 F)
1960	38.3 C (100.9 F)
1961	39.4 C (102.9 F)
1962	33.9 C (93.0 F)
1963	33.9 C (93.0 F)
1964	35.0 C (95.0 F)
1965	35.0 C (95.0 F)
1966	34.4 C (93.9 F)

Coldest night (TNn)

The coldest night of the year at Imperial, 1911 to 1966. The record is -45.6 C (-50.1 F) in 1916, marked on the chart; the median year is -38.3 C (-36.9 F).

Coldest night (TNn) at Imperial by year
Year	Coldest night (TNn)
1911	-38.3 C (-36.9 F)
1912	-38.9 C (-38.0 F)
1913	-43.3 C (-45.9 F)
1914	-41.7 C (-43.1 F)
1915	-41.7 C (-43.1 F)
1916	-45.6 C (-50.1 F)
1917	-43.9 C (-47.0 F)
1918	-41.7 C (-43.1 F)
1919	-43.3 C (-45.9 F)
1920	-40.0 C (-40.0 F)
1921	-35.0 C (-31.0 F)
1922	-38.9 C (-38.0 F)
1923	-35.0 C (-31.0 F)
1924	-36.1 C (-33.0 F)
1925	-35.0 C (-31.0 F)
1926	-33.9 C (-29.0 F)
1927	-40.6 C (-41.1 F)
1951	-34.4 C (-29.9 F)
1952	-38.9 C (-38.0 F)
1953	-32.8 C (-27.0 F)
1954	-41.1 C (-42.0 F)
1955	-36.1 C (-33.0 F)
1956	-40.6 C (-41.1 F)
1957	-32.8 C (-27.0 F)
1958	-38.9 C (-38.0 F)
1959	-35.6 C (-32.1 F)
1960	-31.1 C (-24.0 F)
1961	-34.4 C (-29.9 F)
1962	-37.2 C (-35.0 F)
1963	-35.6 C (-32.1 F)
1964	-33.3 C (-27.9 F)
1965	-34.4 C (-29.9 F)
1966	-41.7 C (-43.1 F)

Wettest day (Rx1day)

The wettest day of the year at Imperial, 1911 to 1966. The record is 82.0 mm (3.2 in) in 1954, marked on the chart; the median year is 38.3 mm (1.5 in).

Wettest day (Rx1day) at Imperial by year
Year	Wettest day (Rx1day)
1911	7.6 mm (0.30 in)
1912	54.9 mm (2.2 in)
1913	38.4 mm (1.5 in)
1914	36.6 mm (1.4 in)
1915	62.2 mm (2.4 in)
1916	57.9 mm (2.3 in)
1917	26.2 mm (1.0 in)
1918	36.1 mm (1.4 in)
1919	19.1 mm (0.8 in)
1920	20.1 mm (0.8 in)
1921	47.8 mm (1.9 in)
1922	45.0 mm (1.8 in)
1923	38.1 mm (1.5 in)
1924	26.7 mm (1.1 in)
1925	29.2 mm (1.1 in)
1926	40.1 mm (1.6 in)
1927	n/a
1951	11.2 mm (0.4 in)
1952	26.9 mm (1.1 in)
1953	46.0 mm (1.8 in)
1954	82.0 mm (3.2 in)
1955	31.8 mm (1.3 in)
1956	51.6 mm (2.0 in)
1957	33.8 mm (1.3 in)
1958	25.9 mm (1.0 in)
1959	77.5 mm (3.1 in)
1960	56.1 mm (2.2 in)
1961	31.2 mm (1.2 in)
1962	20.3 mm (0.8 in)
1963	38.4 mm (1.5 in)
1964	67.3 mm (2.6 in)
1965	44.5 mm (1.8 in)
1966	45.0 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Imperial, 1911 to 1966. The record is 124.2 mm (4.9 in) in 1959, marked on the chart; the median year is 54.8 mm (2.2 in).

Wettest five days (Rx5day) at Imperial by year
Year	Wettest five days (Rx5day)
1911	7.6 mm (0.30 in)
1912	88.9 mm (3.5 in)
1913	70.9 mm (2.8 in)
1914	41.2 mm (1.6 in)
1915	73.6 mm (2.9 in)
1916	77.5 mm (3.1 in)
1917	55.9 mm (2.2 in)
1918	36.1 mm (1.4 in)
1919	38.7 mm (1.5 in)
1920	27.0 mm (1.1 in)
1921	80.0 mm (3.1 in)
1922	53.6 mm (2.1 in)
1923	62.2 mm (2.4 in)
1924	37.6 mm (1.5 in)
1925	31.2 mm (1.2 in)
1926	45.2 mm (1.8 in)
1927	n/a
1951	18.9 mm (0.7 in)
1952	31.3 mm (1.2 in)
1953	64.0 mm (2.5 in)
1954	93.7 mm (3.7 in)
1955	60.0 mm (2.4 in)
1956	52.4 mm (2.1 in)
1957	34.8 mm (1.4 in)
1958	29.7 mm (1.2 in)
1959	124.2 mm (4.9 in)
1960	86.3 mm (3.4 in)
1961	36.0 mm (1.4 in)
1962	37.3 mm (1.5 in)
1963	73.2 mm (2.9 in)
1964	78.7 mm (3.1 in)
1965	85.6 mm (3.4 in)
1966	84.7 mm (3.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Imperial, 1911 to 1966. The record is 77 days in 1961, marked on the chart; the median year is 33 days.

Longest dry spell (CDD) at Imperial by year
Year	Longest dry spell (CDD)
1911	17 days
1912	31 days
1913	41 days
1914	35 days
1915	26 days
1916	24 days
1917	38 days
1918	53 days
1919	44 days
1920	26 days
1921	26 days
1922	31 days
1923	47 days
1924	34 days
1925	18 days
1926	30 days
1927	n/a
1951	25 days
1952	39 days
1953	34 days
1954	44 days
1955	28 days
1956	25 days
1957	19 days
1958	38 days
1959	34 days
1960	61 days
1961	77 days
1962	31 days
1963	36 days
1964	32 days
1965	53 days
1966	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

22 years with a frost

Across 22 years with a frost, the median last spring frost at Imperial falls on 27 May and the median first autumn frost on 11 September, which leaves a median of 111 days between them.

Frost dates and growing season at Imperial
Measure	Median, all years	Earliest period	Recent period (1913 to 1965)	Recent against earliest	Fitted trend
Last spring frost	27 May	n/a	27 May	n/a	n/a
First autumn frost	11 September	n/a	11 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 Imperial standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Imperial 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).