Lillooet Weather Records (CA001114620)

Record envelope, standing records and threshold days for Lillooet (CA001114620), British Columbia, Canada, with 93 years of record.

Key Facts for Lillooet

Lillooet (CA001114620) is a weather station in British Columbia, Canada at 50.70 latitude and -121.93 longitude, 290 m (951 ft) above sea level.
The station reports from 1878 to 1970, 93 years of record.
1,464 records set at Lillooet still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Lillooet set a daily record snowfall of 10.9 cm (4.3 in) on 20 January 1970.

About the Station

Location: British Columbia, Canada, 50.70 latitude, -121.93 longitude.
Elevation: 290 m (951 ft).
Period of record: 1878 to 1970, 93 years.
Eligible elements: 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 Lillooet. 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 Lillooet, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-30.6 C (-23.1 F)	n/a	n/a
Feb	17.8 C (64.0 F)	-26.7 C (-16.1 F)	n/a	n/a
Mar	25.6 C (78.1 F)	-17.8 C (0.0 F)	n/a	n/a
Apr	36.1 C (97.0 F)	-11.1 C (12.0 F)	n/a	n/a
May	41.7 C (107.1 F)	-3.9 C (25.0 F)	n/a	n/a
Jun	40.6 C (105.1 F)	2.8 C (37.0 F)	n/a	n/a
Jul	44.4 C (111.9 F)	4.4 C (39.9 F)	n/a	n/a
Aug	40.0 C (104.0 F)	4.4 C (39.9 F)	n/a	n/a
Sep	37.2 C (99.0 F)	-2.8 C (27.0 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-13.3 C (8.1 F)	n/a	n/a
Nov	23.3 C (73.9 F)	-20.0 C (-4.0 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-27.8 C (-18.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Lillooet still stand. 1881 holds the most, with 93.

Standing records at Lillooet by the year they were set
Year set	Standing records
1881	93
1882	72
1883	51
1917	30
1918	36
1919	53
1920	51
1921	55
1922	45
1923	43
1924	72
1925	53
1926	62
1927	55
1928	36
1929	27
1930	48
1931	41
1932	58
1933	54
1934	69
1935	77
1936	58
1937	32
1938	32
1939	52
1940	34
1941	46
1942	19
1943	10

All-Time Record Progression

1 new records

1 all-time records were set at Lillooet between 24 January 1951 and 24 January 1951. Each dot is a new record.

Wettest Day of Each Month

Jun: 114.3 mm (4.5 in)

The wettest day on record for each calendar month at Lillooet. The most was 114.3 mm (4.5 in) on 2 June 1917.

Record daily precipitation for each month at Lillooet
Month	Record daily precipitation (mm)	Date
Jan	52.1 mm (2.1 in)	24 January 1951
Feb	35.6 mm (1.4 in)	4 February 1963
Mar	28.4 mm (1.1 in)	15 March 1951
Apr	34.5 mm (1.4 in)	12 April 1965
May	49.3 mm (1.9 in)	28 May 1881
Jun	114.3 mm (4.5 in)	2 June 1917
Jul	51.3 mm (2.0 in)	28 July 1917
Aug	27.2 mm (1.1 in)	12 August 1927
Sep	27.4 mm (1.1 in)	20 September 1956
Oct	48.3 mm (1.9 in)	29 October 1955
Nov	36.3 mm (1.4 in)	29 November 1883
Dec	33.0 mm (1.3 in)	19 December 1931

Period of Record Coverage

1881 to 1943

30 years of record at Lillooet, 1881 to 1943. 3 years have data for under 90 percent of days and are left out of rankings: 1917, 1919, 1943.

Days with data per year at Lillooet
Year	Days with data	Share of year	Complete
1881	332	91%	Yes
1882	365	100%	Yes
1883	333	91%	Yes
1917	275	75%	No
1918	365	100%	Yes
1919	278	76%	No
1920	366	100%	Yes
1921	365	100%	Yes
1922	365	100%	Yes
1923	364	100%	Yes
1924	366	100%	Yes
1925	365	100%	Yes
1926	365	100%	Yes
1927	365	100%	Yes
1928	366	100%	Yes
1929	365	100%	Yes
1930	365	100%	Yes
1931	365	100%	Yes
1932	366	100%	Yes
1933	359	98%	Yes
1934	364	100%	Yes
1935	361	99%	Yes
1936	364	99%	Yes
1937	365	100%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	59	16%	No

Latest Records

Latest records at Lillooet
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 January 1970	Lillooet, CA	daily snowfall	10.9 cm (4.3 in)	5.8 cm (2.3 in)	35 years	28 of 100 (Routine)
9 January 1970	Lillooet, CA	daily snowfall (Tie)	2.3 cm (0.9 in)	tie	2 years	2 of 100 (Routine)
19 December 1969	Lillooet, CA	daily snowfall (Tie)	3.8 cm (1.5 in)	tie	8 years	2 of 100 (Routine)
8 December 1969	Lillooet, CA	daily snowfall	7.6 cm (3.0 in)	6.3 cm (2.5 in)	38 years	31 of 100 (Routine)
24 July 1969	Lillooet, CA	daily rain	16.5 mm (0.6 in)	3.8 mm (0.15 in)	8 years	16 of 100 (Routine)
27 June 1969	Lillooet, CA	daily rain	11.4 mm (0.4 in)	5.0 mm (0.20 in)	38 years	20 of 100 (Routine)
6 January 1969	Lillooet, CA	daily snowfall	9.7 cm (3.8 in)	8.4 cm (3.3 in)	90 years	49 of 100 (Notable)
17 December 1968	Lillooet, CA	daily snowfall	8.6 cm (3.4 in)	3.5 cm (1.4 in)	51 years	30 of 100 (Routine)
14 November 1968	Lillooet, CA	daily snowfall	5.1 cm (2.0 in)	2.8 cm (1.1 in)	3 years	17 of 100 (Routine)
14 November 1968	Lillooet, CA	daily rain	10.2 mm (0.4 in)	2.3 mm (0.09 in)	5 years	14 of 100 (Routine)
18 April 1968	Lillooet, CA	daily snowfall	1.5 cm (0.6 in)	1.5 cm (0.6 in)	89 years	20 of 100 (Routine)
18 April 1968	Lillooet, CA	daily rain	6.6 mm (0.26 in)	5.8 mm (0.23 in)	43 years	20 of 100 (Routine)
10 April 1968	Lillooet, CA	daily rain	13.2 mm (0.5 in)	2.0 mm (0.08 in)	2 years	13 of 100 (Routine)
8 April 1968	Lillooet, CA	daily rain	2.3 mm (0.09 in)	1.8 mm (0.07 in)	3 years	12 of 100 (Routine)
4 March 1968	Lillooet, CA	daily rain	8.9 mm (0.35 in)	2.8 mm (0.11 in)	43 years	20 of 100 (Routine)
2 February 1968	Lillooet, CA	daily rain	14.2 mm (0.6 in)	1.8 mm (0.07 in)	33 years	20 of 100 (Routine)
9 January 1968	Lillooet, CA	daily snowfall	2.3 cm (0.9 in)	1.0 cm (0.4 in)	42 years	20 of 100 (Routine)
24 December 1967	Lillooet, CA	daily snowfall	10.7 cm (4.2 in)	5.6 cm (2.2 in)	30 years	28 of 100 (Routine)
24 December 1967	Lillooet, CA	daily rain	10.7 mm (0.4 in)	0.8 mm (0.03 in)	48 years	20 of 100 (Routine)
10 November 1967	Lillooet, CA	daily rain	12.4 mm (0.5 in)	2.2 mm (0.09 in)	48 years	20 of 100 (Routine)

Climate Trend

25 complete years, 1882 to 1942

One stripe for each of 25 complete years at Lillooet, 1882 to 1942. Blue stripes are years cooler than the station's own mean of 9.9 C (49.9 F); red stripes are warmer. The coolest year was 1882, at 8.5 C (47.2 F), and the warmest was 1941, at 11.3 C (52.4 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Lillooet as warming stripes, 1882 to 1942
Year	Annual mean temperature	Difference from the station mean
1882	8.5 C	-1.50 C
1918	10.0 C	+0.05 C
1920	9.5 C	-0.45 C
1921	9.1 C	-0.89 C
1922	8.8 C	-1.14 C
1923	10.7 C	+0.76 C
1924	9.8 C	-0.18 C
1925	11.1 C	+1.16 C
1926	11.3 C	+1.37 C
1927	9.3 C	-0.67 C
1928	10.6 C	+0.60 C
1929	9.0 C	-0.99 C
1930	8.9 C	-1.02 C
1931	10.1 C	+0.19 C
1932	9.6 C	-0.33 C
1933	9.7 C	-0.30 C
1934	10.9 C	+0.99 C
1935	9.1 C	-0.84 C
1936	9.4 C	-0.58 C
1937	9.1 C	-0.88 C
1938	10.4 C	+0.42 C
1939	11.3 C	+1.32 C
1940	11.3 C	+1.32 C
1941	11.3 C	+1.37 C
1942	10.1 C	+0.17 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

1878 to 1970

Yearly extremes at Lillooet: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.4 C (111.9 F)	1941	39.4 C (102.9 F)	30
Coldest night (TNn)	-30.6 C (-23.1 F)	1935	-22.8 C (-9.0 F)	30
Wettest day (Rx1day)	114.3 mm (4.5 in)	1917	24.9 mm (1.0 in)	55
Wettest five days (Rx5day)	152.4 mm (6.0 in)	1917	41.9 mm (1.6 in)	55
Longest dry spell (CDD)	57 days	1928	33 days	55

Hottest day (TXx)

The hottest day of the year at Lillooet, 1878 to 1970. The record is 44.4 C (111.9 F) in 1941, marked on the chart; the median year is 39.4 C (102.9 F).

Hottest day (TXx) at Lillooet by year
Year	Hottest day (TXx)
1878	n/a
1879	n/a
1880	n/a
1881	35.0 C (95.0 F)
1882	40.0 C (104.0 F)
1883	36.7 C (98.1 F)
1917	36.7 C (98.1 F)
1918	41.1 C (106.0 F)
1919	36.7 C (98.1 F)
1920	38.9 C (102.0 F)
1921	35.6 C (96.1 F)
1922	37.2 C (99.0 F)
1923	38.3 C (100.9 F)
1924	39.4 C (102.9 F)
1925	40.6 C (105.1 F)
1926	42.2 C (108.0 F)
1927	41.1 C (106.0 F)
1928	41.7 C (107.1 F)
1929	36.7 C (98.1 F)
1930	38.3 C (100.9 F)
1931	38.3 C (100.9 F)
1932	39.4 C (102.9 F)
1933	38.9 C (102.0 F)
1934	39.4 C (102.9 F)
1935	41.1 C (106.0 F)
1936	41.7 C (107.1 F)
1937	40.0 C (104.0 F)
1938	40.0 C (104.0 F)
1939	41.1 C (106.0 F)
1940	37.8 C (100.0 F)
1941	44.4 C (111.9 F)
1942	40.0 C (104.0 F)
1943	15.0 C (59.0 F)
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a

Coldest night (TNn)

The coldest night of the year at Lillooet, 1878 to 1970. The record is -30.6 C (-23.1 F) in 1935, marked on the chart; the median year is -22.8 C (-9.0 F).

Coldest night (TNn) at Lillooet by year
Year	Coldest night (TNn)
1878	n/a
1879	n/a
1880	n/a
1881	-18.9 C (-2.0 F)
1882	-22.2 C (-8.0 F)
1883	-24.4 C (-11.9 F)
1917	-20.6 C (-5.1 F)
1918	-18.3 C (-0.9 F)
1919	-26.7 C (-16.1 F)
1920	-21.1 C (-6.0 F)
1921	-23.3 C (-9.9 F)
1922	-23.9 C (-11.0 F)
1923	-23.9 C (-11.0 F)
1924	-28.3 C (-18.9 F)
1925	-14.4 C (6.1 F)
1926	-18.9 C (-2.0 F)
1927	-26.7 C (-16.1 F)
1928	-25.0 C (-13.0 F)
1929	-29.4 C (-20.9 F)
1930	-24.4 C (-11.9 F)
1931	-16.7 C (1.9 F)
1932	-21.7 C (-7.1 F)
1933	-22.8 C (-9.0 F)
1934	-21.1 C (-6.0 F)
1935	-30.6 C (-23.1 F)
1936	-26.7 C (-16.1 F)
1937	-26.7 C (-16.1 F)
1938	-16.7 C (1.9 F)
1939	-22.8 C (-9.0 F)
1940	-16.7 C (1.9 F)
1941	-13.9 C (7.0 F)
1942	-17.8 C (0.0 F)
1943	-28.9 C (-20.0 F)
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a

Wettest day (Rx1day)

The wettest day of the year at Lillooet, 1878 to 1970. The record is 114.3 mm (4.5 in) in 1917, marked on the chart; the median year is 24.9 mm (1.0 in).

Wettest day (Rx1day) at Lillooet by year
Year	Wettest day (Rx1day)
1878	21.1 mm (0.8 in)
1879	25.4 mm (1.0 in)
1880	22.9 mm (0.9 in)
1881	49.3 mm (1.9 in)
1882	14.7 mm (0.6 in)
1883	36.3 mm (1.4 in)
1917	114.3 mm (4.5 in)
1918	22.9 mm (0.9 in)
1919	19.6 mm (0.8 in)
1920	21.6 mm (0.9 in)
1921	24.6 mm (1.0 in)
1922	12.7 mm (0.5 in)
1923	22.9 mm (0.9 in)
1924	21.6 mm (0.9 in)
1925	25.4 mm (1.0 in)
1926	15.0 mm (0.6 in)
1927	27.2 mm (1.1 in)
1928	19.1 mm (0.8 in)
1929	10.2 mm (0.4 in)
1930	16.0 mm (0.6 in)
1931	33.0 mm (1.3 in)
1932	26.7 mm (1.1 in)
1933	25.4 mm (1.0 in)
1934	22.9 mm (0.9 in)
1935	25.4 mm (1.0 in)
1936	30.5 mm (1.2 in)
1937	33.0 mm (1.3 in)
1938	25.1 mm (1.0 in)
1939	29.2 mm (1.1 in)
1940	44.5 mm (1.8 in)
1941	34.5 mm (1.4 in)
1942	20.8 mm (0.8 in)
1943	24.1 mm (0.9 in)
1949	20.1 mm (0.8 in)
1950	25.7 mm (1.0 in)
1951	52.1 mm (2.1 in)
1952	18.5 mm (0.7 in)
1953	24.9 mm (1.0 in)
1954	23.4 mm (0.9 in)
1955	48.3 mm (1.9 in)
1956	29.5 mm (1.2 in)
1957	34.3 mm (1.4 in)
1958	18.3 mm (0.7 in)
1959	27.9 mm (1.1 in)
1960	17.8 mm (0.7 in)
1961	49.5 mm (1.9 in)
1962	23.1 mm (0.9 in)
1963	35.6 mm (1.4 in)
1964	38.6 mm (1.5 in)
1965	34.5 mm (1.4 in)
1966	23.4 mm (0.9 in)
1967	43.2 mm (1.7 in)
1968	14.2 mm (0.6 in)
1969	16.5 mm (0.6 in)
1970	10.9 mm (0.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lillooet, 1878 to 1970. The record is 152.4 mm (6.0 in) in 1917, marked on the chart; the median year is 41.9 mm (1.6 in).

Wettest five days (Rx5day) at Lillooet by year
Year	Wettest five days (Rx5day)
1878	30.8 mm (1.2 in)
1879	44.8 mm (1.8 in)
1880	36.4 mm (1.4 in)
1881	55.7 mm (2.2 in)
1882	24.4 mm (1.0 in)
1883	43.9 mm (1.7 in)
1917	152.4 mm (6.0 in)
1918	29.6 mm (1.2 in)
1919	45.7 mm (1.8 in)
1920	22.3 mm (0.9 in)
1921	48.3 mm (1.9 in)
1922	20.8 mm (0.8 in)
1923	32.0 mm (1.3 in)
1924	37.7 mm (1.5 in)
1925	38.1 mm (1.5 in)
1926	17.7 mm (0.7 in)
1927	42.9 mm (1.7 in)
1928	25.5 mm (1.0 in)
1929	28.0 mm (1.1 in)
1930	21.8 mm (0.9 in)
1931	62.2 mm (2.4 in)
1932	42.7 mm (1.7 in)
1933	38.1 mm (1.5 in)
1934	41.9 mm (1.6 in)
1935	62.3 mm (2.5 in)
1936	82.9 mm (3.3 in)
1937	67.6 mm (2.7 in)
1938	44.7 mm (1.8 in)
1939	52.1 mm (2.1 in)
1940	58.0 mm (2.3 in)
1941	49.0 mm (1.9 in)
1942	29.2 mm (1.1 in)
1943	33.3 mm (1.3 in)
1949	26.2 mm (1.0 in)
1950	33.3 mm (1.3 in)
1951	66.1 mm (2.6 in)
1952	21.0 mm (0.8 in)
1953	35.9 mm (1.4 in)
1954	54.6 mm (2.1 in)
1955	52.4 mm (2.1 in)
1956	50.0 mm (2.0 in)
1957	45.7 mm (1.8 in)
1958	34.7 mm (1.4 in)
1959	54.0 mm (2.1 in)
1960	26.7 mm (1.1 in)
1961	71.6 mm (2.8 in)
1962	31.2 mm (1.2 in)
1963	52.9 mm (2.1 in)
1964	67.8 mm (2.7 in)
1965	57.1 mm (2.2 in)
1966	24.7 mm (1.0 in)
1967	65.8 mm (2.6 in)
1968	27.7 mm (1.1 in)
1969	28.9 mm (1.1 in)
1970	12.2 mm (0.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lillooet, 1878 to 1970. The record is 57 days in 1928, marked on the chart; the median year is 33 days.

Longest dry spell (CDD) at Lillooet by year
Year	Longest dry spell (CDD)
1878	29 days
1879	31 days
1880	23 days
1881	22 days
1882	26 days
1883	34 days
1917	55 days
1918	51 days
1919	30 days
1920	23 days
1921	27 days
1922	45 days
1923	32 days
1924	32 days
1925	21 days
1926	33 days
1927	24 days
1928	57 days
1929	55 days
1930	29 days
1931	23 days
1932	33 days
1933	28 days
1934	33 days
1935	35 days
1936	37 days
1937	27 days
1938	36 days
1939	48 days
1940	35 days
1941	31 days
1942	52 days
1943	33 days
1949	44 days
1950	33 days
1951	33 days
1952	46 days
1953	33 days
1954	25 days
1955	22 days
1956	43 days
1957	39 days
1958	53 days
1959	53 days
1960	35 days
1961	38 days
1962	37 days
1963	23 days
1964	19 days
1965	47 days
1966	28 days
1967	34 days
1968	18 days
1969	21 days
1970	13 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

25 years with a frost

Across 25 years with a frost, the median last spring frost at Lillooet falls on 20 April and the median first autumn frost on 17 October, which leaves a median of 178 days between them.

Fitted over all years, the growing season changes by +5.0 days per decade at this station.

Frost dates and growing season at Lillooet
Measure	Median, all years	Earliest period	Recent period (1882 to 1942)	Recent against earliest	Fitted trend
Last spring frost	20 April	n/a	20 April	n/a	-5.0 days per decade
First autumn frost	17 October	n/a	17 October	n/a	+0.1 days per decade
Growing days	178 days	n/a	178 days	n/a	+5.0 days per decade

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.

Rainfall Return Levels

45 years, 1878 to 1969

A day with at least 23.8 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 86.8 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Lillooet: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	23.8 mm (0.9 in)
5 years	33.7 mm (1.3 in)
10 years	42.4 mm (1.7 in)
25 years	56.6 mm (2.2 in)
50 years	70.1 mm (2.8 in)	Longer than the 45 years of record
100 years	86.8 mm (3.4 in)	Longer than the 45 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 45 years of values from 1878 to 1969.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 114.3 mm (4.5 in) in 1917; 52.1 mm (2.1 in) in 1951; 49.3 mm (1.9 in) in 1881.

Download the Data

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