Lethbridge Weather Records (CA003033879)

Record envelope, standing records and threshold days for Lethbridge (CA003033879), Alberta, Canada, with 36 years of record.

Key Facts for Lethbridge

Lethbridge (CA003033879) is a weather station in Alberta, Canada at 49.70 latitude and -112.85 longitude, 903 m (2,963 ft) above sea level.
The station reports from 1886 to 1921, 36 years of record.
1,464 records set at Lethbridge still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Alberta, Canada, 49.70 latitude, -112.85 longitude.
Elevation: 903 m (2,963 ft).
Period of record: 1886 to 1921, 36 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 Lethbridge. 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 Lethbridge, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	16.7 C (62.1 F)	-40.0 C (-40.0 F)	n/a	n/a
Feb	18.3 C (64.9 F)	-42.2 C (-44.0 F)	n/a	n/a
Mar	24.4 C (75.9 F)	-35.6 C (-32.1 F)	n/a	n/a
Apr	33.9 C (93.0 F)	-18.3 C (-0.9 F)	n/a	n/a
May	33.3 C (91.9 F)	-7.2 C (19.0 F)	n/a	n/a
Jun	36.7 C (98.1 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	40.0 C (104.0 F)	3.3 C (37.9 F)	n/a	n/a
Aug	37.2 C (99.0 F)	-0.6 C (30.9 F)	n/a	n/a
Sep	32.8 C (91.0 F)	-5.6 C (21.9 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-15.6 C (3.9 F)	n/a	n/a
Nov	22.8 C (73.0 F)	-31.7 C (-25.1 F)	n/a	n/a
Dec	18.9 C (66.0 F)	-35.6 C (-32.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Lethbridge still stand. 1910 holds the most, with 141.

Wettest Day of Each Month

Jun: 74.2 mm (2.9 in)

The wettest day on record for each calendar month at Lethbridge. The most was 74.2 mm (2.9 in) on 6 June 1908.

Record daily precipitation for each month at Lethbridge
Month	Record daily precipitation (mm)	Date
Jan	17.8 mm (0.7 in)	15 January 1921
Feb	15.2 mm (0.6 in)	17 February 1908
Mar	12.7 mm (0.5 in)	29 March 1916
Apr	40.6 mm (1.6 in)	25 April 1892
May	72.4 mm (2.9 in)	20 May 1902
Jun	74.2 mm (2.9 in)	6 June 1908
Jul	41.9 mm (1.6 in)	18 July 1916
Aug	58.9 mm (2.3 in)	9 August 1916
Sep	61.2 mm (2.4 in)	4 September 1916
Oct	27.2 mm (1.1 in)	3 October 1916
Nov	25.4 mm (1.0 in)	27 November 1905
Dec	12.7 mm (0.5 in)	23 December 1891

Period of Record Coverage

1886 to 1912

15 years of record at Lethbridge, 1886 to 1912. 5 years have data for under 90 percent of days and are left out of rankings: 1886, 1887, 1891, 1892, 1912.

Days with data per year at Lethbridge
Year	Days with data	Share of year	Complete
1886	204	56%	No
1887	59	16%	No
1891	152	42%	No
1892	121	33%	No
1902	365	100%	Yes
1903	365	100%	Yes
1904	366	100%	Yes
1905	365	100%	Yes
1906	365	100%	Yes
1907	365	100%	Yes
1908	366	100%	Yes
1909	365	100%	Yes
1910	365	100%	Yes
1911	365	100%	Yes
1912	182	50%	No

Latest Records

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

Climate Trend

10 complete years, 1902 to 1911

One stripe for each of 10 complete years at Lethbridge, 1902 to 1911. Blue stripes are years cooler than the station's own mean of 5.8 C (42.4 F); red stripes are warmer. The coolest year was 1911, at 4.3 C (39.7 F), and the warmest was 1910, at 7.4 C (45.3 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Lethbridge as warming stripes, 1902 to 1911
Year	Annual mean temperature	Difference from the station mean
1902	5.3 C	-0.46 C
1903	5.5 C	-0.24 C
1904	5.8 C	+0.06 C
1905	6.6 C	+0.79 C
1906	6.4 C	+0.67 C
1907	5.2 C	-0.55 C
1908	6.7 C	+0.91 C
1909	4.5 C	-1.31 C
1910	7.4 C	+1.64 C
1911	4.3 C	-1.49 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 1921

Yearly extremes at Lethbridge: 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	33.9 C (93.0 F)	15
Coldest night (TNn)	-42.2 C (-44.0 F)	1887	-33.9 C (-29.0 F)	15
Wettest day (Rx1day)	74.2 mm (2.9 in)	1908	28.2 mm (1.1 in)	23
Wettest five days (Rx5day)	198.9 mm (7.8 in)	1902	48.7 mm (1.9 in)	23
Longest dry spell (CDD)	48 days	1913	30 days	23

Hottest day (TXx)

The hottest day of the year at Lethbridge, 1886 to 1921. The record is 40.0 C (104.0 F) in 1886, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at Lethbridge by year
Year	Hottest day (TXx)
1886	40.0 C (104.0 F)
1887	10.6 C (51.1 F)
1891	28.9 C (84.0 F)
1892	20.0 C (68.0 F)
1902	32.2 C (90.0 F)
1903	33.9 C (93.0 F)
1904	38.9 C (102.0 F)
1905	35.0 C (95.0 F)
1906	37.2 C (99.0 F)
1907	32.8 C (91.0 F)
1908	35.0 C (95.0 F)
1909	33.9 C (93.0 F)
1910	39.4 C (102.9 F)
1911	33.3 C (91.9 F)
1912	36.7 C (98.1 F)
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a

Coldest night (TNn)

The coldest night of the year at Lethbridge, 1886 to 1921. The record is -42.2 C (-44.0 F) in 1887, marked on the chart; the median year is -33.9 C (-29.0 F).

Coldest night (TNn) at Lethbridge by year
Year	Coldest night (TNn)
1886	-32.2 C (-26.0 F)
1887	-42.2 C (-44.0 F)
1891	-27.2 C (-17.0 F)
1892	-28.3 C (-18.9 F)
1902	-33.9 C (-29.0 F)
1903	-35.6 C (-32.1 F)
1904	-32.2 C (-26.0 F)
1905	-41.7 C (-43.1 F)
1906	-32.2 C (-26.0 F)
1907	-39.4 C (-38.9 F)
1908	-30.0 C (-22.0 F)
1909	-40.0 C (-40.0 F)
1910	-33.9 C (-29.0 F)
1911	-39.4 C (-38.9 F)
1912	-33.3 C (-27.9 F)
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a

Wettest day (Rx1day)

The wettest day of the year at Lethbridge, 1886 to 1921. The record is 74.2 mm (2.9 in) in 1908, marked on the chart; the median year is 28.2 mm (1.1 in).

Wettest day (Rx1day) at Lethbridge by year
Year	Wettest day (Rx1day)
1886	19.1 mm (0.8 in)
1887	n/a
1891	15.2 mm (0.6 in)
1892	40.6 mm (1.6 in)
1902	72.4 mm (2.9 in)
1903	25.4 mm (1.0 in)
1904	24.1 mm (0.9 in)
1905	35.8 mm (1.4 in)
1906	54.6 mm (2.1 in)
1907	28.2 mm (1.1 in)
1908	74.2 mm (2.9 in)
1909	22.9 mm (0.9 in)
1910	21.8 mm (0.9 in)
1911	43.9 mm (1.7 in)
1912	24.4 mm (1.0 in)
1913	21.6 mm (0.9 in)
1914	46.0 mm (1.8 in)
1915	31.0 mm (1.2 in)
1916	61.2 mm (2.4 in)
1917	17.0 mm (0.7 in)
1918	17.0 mm (0.7 in)
1919	18.5 mm (0.7 in)
1920	36.8 mm (1.4 in)
1921	33.0 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lethbridge, 1886 to 1921. The record is 198.9 mm (7.8 in) in 1902, marked on the chart; the median year is 48.7 mm (1.9 in).

Wettest five days (Rx5day) at Lethbridge by year
Year	Wettest five days (Rx5day)
1886	31.0 mm (1.2 in)
1887	n/a
1891	15.2 mm (0.6 in)
1892	76.1 mm (3.0 in)
1902	198.9 mm (7.8 in)
1903	66.3 mm (2.6 in)
1904	44.0 mm (1.7 in)
1905	48.7 mm (1.9 in)
1906	106.2 mm (4.2 in)
1907	64.5 mm (2.5 in)
1908	140.0 mm (5.5 in)
1909	41.6 mm (1.6 in)
1910	34.8 mm (1.4 in)
1911	86.3 mm (3.4 in)
1912	33.8 mm (1.3 in)
1913	45.6 mm (1.8 in)
1914	47.0 mm (1.9 in)
1915	50.0 mm (2.0 in)
1916	115.0 mm (4.5 in)
1917	37.8 mm (1.5 in)
1918	23.9 mm (0.9 in)
1919	51.9 mm (2.0 in)
1920	37.8 mm (1.5 in)
1921	55.1 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lethbridge, 1886 to 1921. The record is 48 days in 1913, marked on the chart; the median year is 30 days.

Longest dry spell (CDD) at Lethbridge by year
Year	Longest dry spell (CDD)
1886	31 days
1887	n/a
1891	22 days
1892	24 days
1902	36 days
1903	39 days
1904	45 days
1905	35 days
1906	34 days
1907	45 days
1908	36 days
1909	30 days
1910	38 days
1911	30 days
1912	25 days
1913	48 days
1914	23 days
1915	30 days
1916	38 days
1917	28 days
1918	28 days
1919	30 days
1920	27 days
1921	18 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 Lethbridge standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lethbridge 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).