Horsefly Lake Gruhs Lake Weather Records (CA001093600)

Record envelope, standing records and threshold days for Horsefly Lake Gruhs Lake (CA001093600), British Columbia, Canada, with 67 years of record.

Key Facts for Horsefly Lake Gruhs Lake

Horsefly Lake Gruhs Lake (CA001093600) is a weather station in British Columbia, Canada at 52.37 latitude and -121.37 longitude, 777 m (2,549 ft) above sea level.
The station reports from 1950 to 2016, 67 years of record.
1,464 records set at Horsefly Lake Gruhs Lake still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: British Columbia, Canada, 52.37 latitude, -121.37 longitude.
Elevation: 777 m (2,549 ft).
Period of record: 1950 to 2016, 67 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 Horsefly Lake Gruhs Lake. 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 Horsefly Lake Gruhs Lake, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.2 C (54.0 F)	-42.2 C (-44.0 F)	n/a	n/a
Feb	12.2 C (54.0 F)	-44.4 C (-47.9 F)	n/a	n/a
Mar	18.3 C (64.9 F)	-40.6 C (-41.1 F)	n/a	n/a
Apr	23.3 C (73.9 F)	-18.3 C (-0.9 F)	n/a	n/a
May	29.4 C (84.9 F)	-7.2 C (19.0 F)	n/a	n/a
Jun	33.3 C (91.9 F)	-1.7 C (28.9 F)	n/a	n/a
Jul	33.3 C (91.9 F)	0.0 C (32.0 F)	n/a	n/a
Aug	33.3 C (91.9 F)	-1.1 C (30.0 F)	n/a	n/a
Sep	28.9 C (84.0 F)	-7.8 C (18.0 F)	n/a	n/a
Oct	23.3 C (73.9 F)	-12.8 C (9.0 F)	n/a	n/a
Nov	16.1 C (61.0 F)	-32.2 C (-26.0 F)	n/a	n/a
Dec	15.6 C (60.1 F)	-41.1 C (-42.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Horsefly Lake Gruhs Lake still stand. 1954 holds the most, with 174.

Wettest Day of Each Month

Jun: 51.8 mm (2.0 in)

The wettest day on record for each calendar month at Horsefly Lake Gruhs Lake. The most was 51.8 mm (2.0 in) on 8 June 1957.

Record daily precipitation for each month at Horsefly Lake Gruhs Lake
Month	Record daily precipitation (mm)	Date
Jan	21.6 mm (0.9 in)	30 January 1957
Feb	26.7 mm (1.1 in)	16 February 1956
Mar	34.3 mm (1.4 in)	4 March 1951
Apr	40.1 mm (1.6 in)	22 April 1953
May	38.6 mm (1.5 in)	29 May 1955
Jun	51.8 mm (2.0 in)	8 June 1957
Jul	41.4 mm (1.6 in)	15 July 1957
Aug	35.6 mm (1.4 in)	3 August 1956
Sep	34.3 mm (1.4 in)	24 September 1959
Oct	24.6 mm (1.0 in)	25 October 1953
Nov	22.9 mm (0.9 in)	4 November 1955
Dec	29.2 mm (1.1 in)	2 December 1956

Period of Record Coverage

1950 to 1961

12 years of record at Horsefly Lake Gruhs Lake, 1950 to 1961. 4 years have data for under 90 percent of days and are left out of rankings: 1950, 1955, 1960, 1961.

Days with data per year at Horsefly Lake Gruhs Lake
Year	Days with data	Share of year	Complete
1950	31	8%	No
1951	339	93%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	363	99%	Yes
1955	302	83%	No
1956	365	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	348	95%	Yes
1960	300	82%	No
1961	181	50%	No

Latest Records

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

Extremes by Year

1950 to 1983

Yearly extremes at Horsefly Lake Gruhs Lake: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.3 C (91.9 F)	1951	31.7 C (89.1 F)	12
Coldest night (TNn)	-44.4 C (-47.9 F)	1956	-34.2 C (-29.6 F)	12
Wettest day (Rx1day)	51.8 mm (2.0 in)	1957	34.3 mm (1.4 in)	13
Wettest five days (Rx5day)	80.9 mm (3.2 in)	1957	59.5 mm (2.3 in)	13
Longest dry spell (CDD)	40 days	1958	18 days	13

Hottest day (TXx)

The hottest day of the year at Horsefly Lake Gruhs Lake, 1950 to 1983. The record is 33.3 C (91.9 F) in 1951, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Horsefly Lake Gruhs Lake by year
Year	Hottest day (TXx)
1950	9.4 C (48.9 F)
1951	33.3 C (91.9 F)
1952	31.7 C (89.1 F)
1953	31.7 C (89.1 F)
1954	27.8 C (82.0 F)
1955	28.9 C (84.0 F)
1956	32.8 C (91.0 F)
1957	28.3 C (82.9 F)
1958	33.3 C (91.9 F)
1959	31.1 C (88.0 F)
1960	32.8 C (91.0 F)
1961	33.3 C (91.9 F)
1983	n/a

Coldest night (TNn)

The coldest night of the year at Horsefly Lake Gruhs Lake, 1950 to 1983. The record is -44.4 C (-47.9 F) in 1956, marked on the chart; the median year is -34.2 C (-29.6 F).

Coldest night (TNn) at Horsefly Lake Gruhs Lake by year
Year	Coldest night (TNn)
1950	-21.1 C (-6.0 F)
1951	-41.1 C (-42.0 F)
1952	-32.8 C (-27.0 F)
1953	-38.9 C (-38.0 F)
1954	-35.6 C (-32.1 F)
1955	-40.6 C (-41.1 F)
1956	-44.4 C (-47.9 F)
1957	-42.2 C (-44.0 F)
1958	-25.6 C (-14.1 F)
1959	-31.7 C (-25.1 F)
1960	-28.9 C (-20.0 F)
1961	-20.0 C (-4.0 F)
1983	n/a

Wettest day (Rx1day)

The wettest day of the year at Horsefly Lake Gruhs Lake, 1950 to 1983. The record is 51.8 mm (2.0 in) in 1957, marked on the chart; the median year is 34.3 mm (1.4 in).

Wettest day (Rx1day) at Horsefly Lake Gruhs Lake by year
Year	Wettest day (Rx1day)
1950	19.1 mm (0.8 in)
1951	34.3 mm (1.4 in)
1952	32.3 mm (1.3 in)
1953	40.1 mm (1.6 in)
1954	49.0 mm (1.9 in)
1955	38.6 mm (1.5 in)
1956	35.6 mm (1.4 in)
1957	51.8 mm (2.0 in)
1958	30.2 mm (1.2 in)
1959	34.3 mm (1.4 in)
1960	25.4 mm (1.0 in)
1961	17.5 mm (0.7 in)
1983	24.0 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Horsefly Lake Gruhs Lake, 1950 to 1983. The record is 80.9 mm (3.2 in) in 1957, marked on the chart; the median year is 59.5 mm (2.3 in).

Wettest five days (Rx5day) at Horsefly Lake Gruhs Lake by year
Year	Wettest five days (Rx5day)
1950	30.5 mm (1.2 in)
1951	74.9 mm (2.9 in)
1952	59.5 mm (2.3 in)
1953	66.2 mm (2.6 in)
1954	68.5 mm (2.7 in)
1955	72.3 mm (2.8 in)
1956	55.0 mm (2.2 in)
1957	80.9 mm (3.2 in)
1958	58.3 mm (2.3 in)
1959	65.1 mm (2.6 in)
1960	54.1 mm (2.1 in)
1961	34.1 mm (1.3 in)
1983	49.6 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Horsefly Lake Gruhs Lake, 1950 to 1983. The record is 40 days in 1958, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Horsefly Lake Gruhs Lake by year
Year	Longest dry spell (CDD)
1950	10 days
1951	15 days
1952	20 days
1953	18 days
1954	18 days
1955	22 days
1956	19 days
1957	14 days
1958	40 days
1959	16 days
1960	18 days
1961	18 days
1983	15 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 Horsefly Lake Gruhs Lake standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Horsefly Lake Gruhs Lake 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).