Tunnel Camp Weather Records (CA001048310)

Record envelope, standing records and threshold days for Tunnel Camp (CA001048310), British Columbia, Canada, with 51 years of record.

Key Facts for Tunnel Camp

Tunnel Camp (CA001048310) is a weather station in British Columbia, Canada at 49.62 latitude and -123.13 longitude, 671 m (2,201 ft) above sea level.
The station reports from 1924 to 1974, 51 years of record.
640 records set at Tunnel Camp still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Tunnel Camp set a daily record precipitation of 52.3 mm (2.1 in) on 8 September 1974.

About the Station

Location: British Columbia, Canada, 49.62 latitude, -123.13 longitude.
Elevation: 671 m (2,201 ft).
Period of record: 1924 to 1974, 51 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 Tunnel Camp. 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 Tunnel Camp, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	14.4 C (57.9 F)	1.7 C (35.1 F)	n/a	n/a
Jun	22.8 C (73.0 F)	1.7 C (35.1 F)	n/a	n/a
Jul	26.7 C (80.1 F)	5.0 C (41.0 F)	n/a	n/a
Aug	30.0 C (86.0 F)	7.8 C (46.0 F)	n/a	n/a
Sep	27.2 C (81.0 F)	3.3 C (37.9 F)	n/a	n/a
Oct	15.0 C (59.0 F)	0.0 C (32.0 F)	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

640 standing records

640 records at Tunnel Camp still stand. 1974 holds the most, with 640.

All-Time Record Progression

2 new records

2 all-time records were set at Tunnel Camp between 25 January 1954 and 3 November 1955. Each dot is a new record.

When Tunnel Camp set new all-time records
Date	Kind	Detail
1954-01-25	Record daily snowfall	Record daily snowfall 83.8 cm (33.0 in)
1955-11-03	Record daily precipitation	Record daily precipitation 129.8 mm (5.1 in)

Wettest Day of Each Month

Nov: 129.8 mm (5.1 in)

The wettest day on record for each calendar month at Tunnel Camp. The most was 129.8 mm (5.1 in) on 3 November 1955.

Record daily precipitation for each month at Tunnel Camp
Month	Record daily precipitation (mm)	Date
Jan	109.2 mm (4.3 in)	16 January 1944
Feb	91.4 mm (3.6 in)	17 February 1948
Mar	108.0 mm (4.3 in)	10 March 1974
Apr	93.5 mm (3.7 in)	28 April 1959
May	89.2 mm (3.5 in)	23 May 1973
Jun	98.0 mm (3.9 in)	8 June 1956
Jul	85.9 mm (3.4 in)	11 July 1972
Aug	95.8 mm (3.8 in)	30 August 1961
Sep	105.7 mm (4.2 in)	17 September 1969
Oct	103.6 mm (4.1 in)	17 October 1940
Nov	129.8 mm (5.1 in)	3 November 1955
Dec	95.3 mm (3.8 in)	5 December 1954

Period of Record Coverage

1974 to 1974

1 years of record at Tunnel Camp, 1974 to 1974. 1 years have data for under 90 percent of days and are left out of rankings: 1974.

Latest Records

Latest records at Tunnel Camp
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 September 1974	Tunnel Camp, CA	daily rain	52.3 mm (2.1 in)	23.9 mm (0.9 in)	27 years	27 of 100 (Routine)
17 July 1974	Tunnel Camp, CA	daily rain	21.1 mm (0.8 in)	0.5 mm (0.02 in)	32 years	14 of 100 (Routine)
16 July 1974	Tunnel Camp, CA	daily rain	49.0 mm (1.9 in)	7.1 mm (0.28 in)	40 years	22 of 100 (Routine)
9 July 1974	Tunnel Camp, CA	daily rain	19.6 mm (0.8 in)	3.6 mm (0.14 in)	37 years	18 of 100 (Routine)
3 June 1974	Tunnel Camp, CA	daily rain	40.4 mm (1.6 in)	17.3 mm (0.7 in)	17 years	26 of 100 (Routine)
25 May 1974	Tunnel Camp, CA	daily rain	36.6 mm (1.4 in)	0.3 mm (0.01 in)	13 years	9 of 100 (Routine)
24 May 1974	Tunnel Camp, CA	daily rain	41.4 mm (1.6 in)	13.7 mm (0.5 in)	20 years	23 of 100 (Routine)
22 May 1974	Tunnel Camp, CA	daily rain	36.3 mm (1.4 in)	21.1 mm (0.8 in)	12 years	27 of 100 (Routine)
13 May 1974	Tunnel Camp, CA	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	49 years	34 of 100 (Routine)
6 May 1974	Tunnel Camp, CA	daily rain	25.9 mm (1.0 in)	1.0 mm (0.04 in)	8 years	7 of 100 (Routine)
26 March 1974	Tunnel Camp, CA	daily rain	63.2 mm (2.5 in)	6.0 mm (0.24 in)	28 years	17 of 100 (Routine)
15 March 1974	Tunnel Camp, CA	daily rain	77.5 mm (3.1 in)	35.1 mm (1.4 in)	33 years	40 of 100 (Notable)
10 March 1974	Tunnel Camp, CA	monthly rain	108.0 mm (4.3 in)	16.1 mm (0.6 in)	28 years	34 of 100 (Routine)
28 February 1974	Tunnel Camp, CA	daily snowfall (Tie)	30.5 cm (12.0 in)	tie	19 years	2 of 100 (Routine)
12 February 1974	Tunnel Camp, CA	daily snowfall	22.9 cm (9.0 in)	2.6 cm (1.0 in)	10 years	10 of 100 (Routine)
11 February 1974	Tunnel Camp, CA	daily snowfall	21.6 cm (8.5 in)	2.8 cm (1.1 in)	16 years	12 of 100 (Routine)
3 February 1974	Tunnel Camp, CA	daily rain	81.8 mm (3.2 in)	19.6 mm (0.8 in)	36 years	27 of 100 (Routine)
31 January 1974	Tunnel Camp, CA	daily snowfall (Tie)	12.7 cm (5.0 in)	tie	27 years	3 of 100 (Routine)
14 January 1974	Tunnel Camp, CA	daily rain	81.5 mm (3.2 in)	14.7 mm (0.6 in)	6 years	14 of 100 (Routine)
15 December 1973	Tunnel Camp, CA	daily rain	92.7 mm (3.6 in)	43.4 mm (1.7 in)	36 years	39 of 100 (Notable)

Extremes by Year

1924 to 1974

Yearly extremes at Tunnel Camp: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	30.0 C (86.0 F)	1974	30.0 C (86.0 F)	1
Coldest night (TNn)	0.0 C (32.0 F)	1974	0.0 C (32.0 F)	1
Wettest day (Rx1day)	129.8 mm (5.1 in)	1955	87.1 mm (3.4 in)	51
Wettest five days (Rx5day)	288.7 mm (11.4 in)	1935	207.0 mm (8.1 in)	51
Longest dry spell (CDD)	49 days	1960	21 days	51

Hottest day (TXx)

The hottest day of the year at Tunnel Camp, 1924 to 1974. The record is 30.0 C (86.0 F) in 1974, marked on the chart; the median year is 30.0 C (86.0 F).

Hottest day (TXx) at Tunnel Camp by year
Year	Hottest day (TXx)
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
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
1971	n/a
1972	n/a
1973	n/a
1974	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at Tunnel Camp, 1924 to 1974. The record is 0.0 C (32.0 F) in 1974, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at Tunnel Camp by year
Year	Coldest night (TNn)
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
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
1971	n/a
1972	n/a
1973	n/a
1974	0.0 C (32.0 F)

Wettest day (Rx1day)

The wettest day of the year at Tunnel Camp, 1924 to 1974. The record is 129.8 mm (5.1 in) in 1955, marked on the chart; the median year is 87.1 mm (3.4 in).

Wettest day (Rx1day) at Tunnel Camp by year
Year	Wettest day (Rx1day)
1924	99.1 mm (3.9 in)
1925	59.4 mm (2.3 in)
1926	76.7 mm (3.0 in)
1927	85.9 mm (3.4 in)
1928	77.5 mm (3.1 in)
1929	58.4 mm (2.3 in)
1930	61.5 mm (2.4 in)
1931	79.5 mm (3.1 in)
1932	80.0 mm (3.1 in)
1933	69.9 mm (2.8 in)
1934	85.3 mm (3.4 in)
1935	97.3 mm (3.8 in)
1936	80.8 mm (3.2 in)
1937	101.6 mm (4.0 in)
1938	74.9 mm (2.9 in)
1939	90.9 mm (3.6 in)
1940	103.6 mm (4.1 in)
1941	94.2 mm (3.7 in)
1942	82.0 mm (3.2 in)
1943	80.0 mm (3.1 in)
1944	109.2 mm (4.3 in)
1945	91.9 mm (3.6 in)
1946	89.2 mm (3.5 in)
1947	81.0 mm (3.2 in)
1948	91.4 mm (3.6 in)
1949	126.7 mm (5.0 in)
1950	102.6 mm (4.0 in)
1951	104.1 mm (4.1 in)
1952	63.8 mm (2.5 in)
1953	68.3 mm (2.7 in)
1954	95.3 mm (3.8 in)
1955	129.8 mm (5.1 in)
1956	98.0 mm (3.9 in)
1957	67.8 mm (2.7 in)
1958	72.4 mm (2.9 in)
1959	93.5 mm (3.7 in)
1960	100.3 mm (3.9 in)
1961	95.8 mm (3.8 in)
1962	87.1 mm (3.4 in)
1963	100.8 mm (4.0 in)
1964	59.4 mm (2.3 in)
1965	72.1 mm (2.8 in)
1966	86.9 mm (3.4 in)
1967	80.0 mm (3.1 in)
1968	98.8 mm (3.9 in)
1969	105.7 mm (4.2 in)
1970	59.9 mm (2.4 in)
1971	64.8 mm (2.6 in)
1972	94.5 mm (3.7 in)
1973	92.7 mm (3.6 in)
1974	108.0 mm (4.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tunnel Camp, 1924 to 1974. The record is 288.7 mm (11.4 in) in 1935, marked on the chart; the median year is 207.0 mm (8.1 in).

Wettest five days (Rx5day) at Tunnel Camp by year
Year	Wettest five days (Rx5day)
1924	197.1 mm (7.8 in)
1925	162.0 mm (6.4 in)
1926	188.2 mm (7.4 in)
1927	233.4 mm (9.2 in)
1928	226.3 mm (8.9 in)
1929	167.9 mm (6.6 in)
1930	199.1 mm (7.8 in)
1931	230.6 mm (9.1 in)
1932	214.2 mm (8.4 in)
1933	178.3 mm (7.0 in)
1934	201.9 mm (7.9 in)
1935	288.7 mm (11.4 in)
1936	193.3 mm (7.6 in)
1937	191.7 mm (7.5 in)
1938	222.2 mm (8.7 in)
1939	277.3 mm (10.9 in)
1940	282.6 mm (11.1 in)
1941	232.4 mm (9.1 in)
1942	138.9 mm (5.5 in)
1943	146.3 mm (5.8 in)
1944	253.7 mm (10.0 in)
1945	207.0 mm (8.1 in)
1946	250.9 mm (9.9 in)
1947	242.8 mm (9.6 in)
1948	187.9 mm (7.4 in)
1949	239.2 mm (9.4 in)
1950	259.3 mm (10.2 in)
1951	255.6 mm (10.1 in)
1952	165.3 mm (6.5 in)
1953	202.4 mm (8.0 in)
1954	249.0 mm (9.8 in)
1955	188.6 mm (7.4 in)
1956	201.2 mm (7.9 in)
1957	190.2 mm (7.5 in)
1958	133.3 mm (5.2 in)
1959	205.3 mm (8.1 in)
1960	179.6 mm (7.1 in)
1961	217.9 mm (8.6 in)
1962	228.6 mm (9.0 in)
1963	261.9 mm (10.3 in)
1964	145.8 mm (5.7 in)
1965	193.0 mm (7.6 in)
1966	247.3 mm (9.7 in)
1967	225.0 mm (8.9 in)
1968	239.8 mm (9.4 in)
1969	214.7 mm (8.5 in)
1970	194.0 mm (7.6 in)
1971	169.3 mm (6.7 in)
1972	198.1 mm (7.8 in)
1973	269.4 mm (10.6 in)
1974	215.6 mm (8.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tunnel Camp, 1924 to 1974. The record is 49 days in 1960, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Tunnel Camp by year
Year	Longest dry spell (CDD)
1924	19 days
1925	35 days
1926	15 days
1927	29 days
1928	32 days
1929	22 days
1930	21 days
1931	22 days
1932	16 days
1933	13 days
1934	31 days
1935	23 days
1936	28 days
1937	14 days
1938	21 days
1939	22 days
1940	26 days
1941	13 days
1942	25 days
1943	20 days
1944	28 days
1945	16 days
1946	27 days
1947	15 days
1948	13 days
1949	14 days
1950	19 days
1951	25 days
1952	27 days
1953	11 days
1954	12 days
1955	16 days
1956	26 days
1957	18 days
1958	7 days
1959	20 days
1960	49 days
1961	29 days
1962	15 days
1963	25 days
1964	8 days
1965	17 days
1966	17 days
1967	21 days
1968	24 days
1969	23 days
1970	24 days
1971	23 days
1972	28 days
1973	21 days
1974	19 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.

Rainfall Return Levels

47 years, 1924 to 1973

A day with at least 87.8 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 122.6 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Tunnel Camp: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	87.8 mm (3.5 in)
5 years	101.8 mm (4.0 in)
10 years	108.8 mm (4.3 in)
25 years	115.6 mm (4.6 in)
50 years	119.5 mm (4.7 in)	Longer than the 47 years of record
100 years	122.6 mm (4.8 in)	Longer than the 47 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, 47 years of values from 1924 to 1973.

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: 129.8 mm (5.1 in) in 1955; 126.7 mm (5.0 in) in 1949; 109.2 mm (4.3 in) in 1944.

Download the Data

Data for Tunnel Camp standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tunnel Camp 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).