Hells Gate Weather Records (CA001113420)

Record envelope, standing records and threshold days for Hells Gate (CA001113420), British Columbia, Canada, with 37 years of record.

Key Facts for Hells Gate

Hells Gate (CA001113420) is a weather station in British Columbia, Canada at 49.78 latitude and -121.45 longitude, 122 m (400 ft) above sea level.
The station reports from 1951 to 1987, 37 years of record.
1,464 records set at Hells Gate still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Hells Gate set a daily record low minimum temperature of -17.0 C (1.4 F) on 23 December 1983.

About the Station

Location: British Columbia, Canada, 49.78 latitude, -121.45 longitude.
Elevation: 122 m (400 ft).
Period of record: 1951 to 1987, 37 years.
Eligible elements: tmax, tmin, 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 Hells Gate. 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 Hells Gate, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	11.1 C (52.0 F)	-24.4 C (-11.9 F)	n/a	n/a
Feb	13.9 C (57.0 F)	-18.9 C (-2.0 F)	n/a	n/a
Mar	20.0 C (68.0 F)	-16.1 C (3.0 F)	n/a	n/a
Apr	28.9 C (84.0 F)	-3.3 C (26.1 F)	n/a	n/a
May	36.1 C (97.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	3.9 C (39.0 F)	n/a	n/a
Jul	40.0 C (104.0 F)	5.5 C (41.9 F)	n/a	n/a
Aug	40.6 C (105.1 F)	6.1 C (43.0 F)	n/a	n/a
Sep	33.9 C (93.0 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	25.6 C (78.1 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	17.8 C (64.0 F)	-16.1 C (3.0 F)	n/a	n/a
Dec	17.2 C (63.0 F)	-27.8 C (-18.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Hells Gate still stand. 1955 holds the most, with 98.

Standing records at Hells Gate by the year they were set
Year set	Standing records
1951	28
1952	68
1953	45
1954	68
1955	98
1956	82
1957	46
1958	79
1959	24
1960	18
1961	38
1962	51
1963	45
1964	35
1965	45
1966	36
1967	46
1968	39
1969	53
1970	37
1971	47
1972	39
1973	30
1974	12
1975	40
1976	44
1977	42
1978	45
1979	41
1980	31
1981	46
1982	28
1983	38

Wettest Day of Each Month

Jan: 96.5 mm (3.8 in)

The wettest day on record for each calendar month at Hells Gate. The most was 96.5 mm (3.8 in) on 20 January 1972.

Record daily precipitation for each month at Hells Gate
Month	Record daily precipitation (mm)	Date
Jan	96.5 mm (3.8 in)	20 January 1972
Feb	93.5 mm (3.7 in)	4 February 1963
Mar	60.2 mm (2.4 in)	5 March 1972
Apr	55.6 mm (2.2 in)	20 April 1965
May	23.1 mm (0.9 in)	26 May 1976
Jun	37.1 mm (1.5 in)	1 June 1968
Jul	29.2 mm (1.1 in)	10 July 1957
Aug	27.2 mm (1.1 in)	28 August 1977
Sep	56.6 mm (2.2 in)	20 September 1972
Oct	86.1 mm (3.4 in)	25 October 1955
Nov	86.9 mm (3.4 in)	3 November 1955
Dec	68.1 mm (2.7 in)	20 December 1974

Period of Record Coverage

1951 to 1983

33 years of record at Hells Gate, 1951 to 1983. 6 years have data for under 90 percent of days and are left out of rankings: 1951, 1957, 1960, 1972, 1973, 1974.

Days with data per year at Hells Gate
Year	Days with data	Share of year	Complete
1951	214	59%	No
1952	365	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	364	100%	Yes
1956	365	100%	Yes
1957	294	81%	No
1958	365	100%	Yes
1959	365	100%	Yes
1960	315	86%	No
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	365	100%	Yes
1965	362	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	364	99%	Yes
1969	365	100%	Yes
1970	361	99%	Yes
1971	357	98%	Yes
1972	323	88%	No
1973	297	81%	No
1974	316	87%	No
1975	332	91%	Yes
1976	365	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	364	100%	Yes
1982	331	91%	Yes
1983	361	99%	Yes

Latest Records

Latest records at Hells Gate
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 December 1983	Hells Gate, CA	daily low min	-17.0 C (1.4 F)	1.4 C (2.5 F)	32 years	14 of 100 (Routine)
22 December 1983	Hells Gate, CA	daily low min	-17.5 C (0.5 F)	1.9 C (3.4 F)	32 years	15 of 100 (Routine)
18 November 1983	Hells Gate, CA	daily high min	5.5 C (41.9 F)	0.5 C (0.9 F)	2 years	4 of 100 (Routine)
15 November 1983	Hells Gate, CA	daily rain	45.8 mm (1.8 in)	20.7 mm (0.8 in)	29 years	28 of 100 (Routine)
14 November 1983	Hells Gate, CA	daily rain	30.0 mm (1.2 in)	3.0 mm (0.12 in)	1 year	5 of 100 (Routine)
8 October 1983	Hells Gate, CA	daily low min	1.5 C (34.7 F)	1.8 C (3.2 F)	28 years	16 of 100 (Routine)
1 October 1983	Hells Gate, CA	daily low min	1.5 C (34.7 F)	1.8 C (3.2 F)	28 years	16 of 100 (Routine)
30 September 1983	Hells Gate, CA	daily low min	1.5 C (34.7 F)	0.2 C (0.4 F)	28 years	11 of 100 (Routine)
29 September 1983	Hells Gate, CA	daily low min	1.5 C (34.7 F)	1.3 C (2.3 F)	21 years	13 of 100 (Routine)
28 September 1983	Hells Gate, CA	daily low min	1.5 C (34.7 F)	2.9 C (5.2 F)	17 years	18 of 100 (Routine)
24 September 1983	Hells Gate, CA	daily high min	14.0 C (57.2 F)	0.7 C (1.3 F)	6 years	7 of 100 (Routine)
20 September 1983	Hells Gate, CA	daily low min	3.5 C (38.3 F)	2.6 C (4.7 F)	10 years	15 of 100 (Routine)
19 September 1983	Hells Gate, CA	daily low min	3.0 C (37.4 F)	2.0 C (3.6 F)	25 years	17 of 100 (Routine)
17 September 1983	Hells Gate, CA	daily low max	10.5 C (50.9 F)	2.3 C (4.1 F)	17 years	12 of 100 (Routine)
10 September 1983	Hells Gate, CA	daily low max	10.0 C (50.0 F)	6.1 C (11.0 F)	32 years	24 of 100 (Routine)
27 August 1983	Hells Gate, CA	daily rain	6.2 mm (0.24 in)	0.1 mm (0.00 in)	18 years	8 of 100 (Routine)
11 August 1983	Hells Gate, CA	daily low max	17.5 C (63.5 F)	1.0 C (1.8 F)	4 years	5 of 100 (Routine)
10 August 1983	Hells Gate, CA	daily rain	10.2 mm (0.4 in)	8.2 mm (0.32 in)	4 years	20 of 100 (Routine)
8 August 1983	Hells Gate, CA	daily high min	19.0 C (66.2 F)	0.7 C (1.3 F)	12 years	8 of 100 (Routine)
27 July 1983	Hells Gate, CA	daily low min	10.5 C (50.9 F)	0.1 C (0.2 F)	28 years	11 of 100 (Routine)

Climate Trend

24 complete years, 1952 to 1983

One stripe for each of 24 complete years at Hells Gate, 1952 to 1983. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 1955, at 7.0 C (44.5 F), and the warmest was 1958, at 11.4 C (52.4 F). The strongest colour marks a difference of 2.4 C (4.3 F).

Annual mean temperature at Hells Gate as warming stripes, 1952 to 1983
Year	Annual mean temperature	Difference from the station mean
1952	9.1 C	-0.27 C
1953	10.0 C	+0.71 C
1954	8.1 C	-1.20 C
1955	7.0 C	-2.35 C
1956	7.3 C	-2.06 C
1958	11.4 C	+2.04 C
1959	9.1 C	-0.20 C
1961	10.2 C	+0.92 C
1962	10.0 C	+0.63 C
1963	10.1 C	+0.78 C
1964	8.6 C	-0.68 C
1965	9.8 C	+0.49 C
1966	9.4 C	+0.09 C
1967	10.9 C	+1.55 C
1968	9.2 C	-0.16 C
1969	9.1 C	-0.26 C
1970	9.2 C	-0.12 C
1971	8.9 C	-0.47 C
1976	9.2 C	-0.12 C
1977	9.1 C	-0.21 C
1978	9.1 C	-0.18 C
1979	9.3 C	-0.04 C
1981	10.0 C	+0.70 C
1983	9.8 C	+0.46 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

1951 to 1983

Yearly extremes at Hells Gate: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1965	37.2 C (99.0 F)	33
Coldest night (TNn)	-27.8 C (-18.0 F)	1968	-17.8 C (0.0 F)	33
Wettest day (Rx1day)	96.5 mm (3.8 in)	1972	53.3 mm (2.1 in)	33
Wettest five days (Rx5day)	217.6 mm (8.6 in)	1974	127.5 mm (5.0 in)	33
Longest dry spell (CDD)	56 days	1960	25 days	33

Hottest day (TXx)

The hottest day of the year at Hells Gate, 1951 to 1983. The record is 40.6 C (105.1 F) in 1965, marked on the chart; the median year is 37.2 C (99.0 F).

Hottest day (TXx) at Hells Gate by year
Year	Hottest day (TXx)
1951	38.3 C (100.9 F)
1952	37.8 C (100.0 F)
1953	37.2 C (99.0 F)
1954	32.2 C (90.0 F)
1955	33.9 C (93.0 F)
1956	33.3 C (91.9 F)
1957	31.7 C (89.1 F)
1958	38.9 C (102.0 F)
1959	38.3 C (100.9 F)
1960	38.3 C (100.9 F)
1961	38.3 C (100.9 F)
1962	38.3 C (100.9 F)
1963	35.6 C (96.1 F)
1964	33.3 C (91.9 F)
1965	40.6 C (105.1 F)
1966	35.0 C (95.0 F)
1967	40.0 C (104.0 F)
1968	36.7 C (98.1 F)
1969	36.7 C (98.1 F)
1970	37.8 C (100.0 F)
1971	40.0 C (104.0 F)
1972	37.8 C (100.0 F)
1973	36.7 C (98.1 F)
1974	35.6 C (96.1 F)
1975	37.2 C (99.0 F)
1976	32.8 C (91.0 F)
1977	38.3 C (100.9 F)
1978	38.5 C (101.3 F)
1979	38.0 C (100.4 F)
1980	34.5 C (94.1 F)
1981	39.0 C (102.2 F)
1982	35.5 C (95.9 F)
1983	36.0 C (96.8 F)

Coldest night (TNn)

The coldest night of the year at Hells Gate, 1951 to 1983. The record is -27.8 C (-18.0 F) in 1968, marked on the chart; the median year is -17.8 C (0.0 F).

Coldest night (TNn) at Hells Gate by year
Year	Coldest night (TNn)
1951	-23.3 C (-9.9 F)
1952	-19.4 C (-2.9 F)
1953	-14.4 C (6.1 F)
1954	-20.0 C (-4.0 F)
1955	-16.7 C (1.9 F)
1956	-20.0 C (-4.0 F)
1957	-22.2 C (-8.0 F)
1958	-11.1 C (12.0 F)
1959	-16.7 C (1.9 F)
1960	-11.7 C (10.9 F)
1961	-10.6 C (12.9 F)
1962	-16.7 C (1.9 F)
1963	-16.7 C (1.9 F)
1964	-21.1 C (-6.0 F)
1965	-18.3 C (-0.9 F)
1966	-17.2 C (1.0 F)
1967	-13.3 C (8.1 F)
1968	-27.8 C (-18.0 F)
1969	-24.4 C (-11.9 F)
1970	-17.8 C (0.0 F)
1971	-22.2 C (-8.0 F)
1972	-21.1 C (-6.0 F)
1973	-16.1 C (3.0 F)
1974	-12.8 C (9.0 F)
1975	-17.8 C (0.0 F)
1976	-16.1 C (3.0 F)
1977	-18.0 C (-0.4 F)
1978	-19.5 C (-3.1 F)
1979	-20.0 C (-4.0 F)
1980	-18.5 C (-1.3 F)
1981	-11.5 C (11.3 F)
1982	-20.5 C (-4.9 F)
1983	-17.5 C (0.5 F)

Wettest day (Rx1day)

The wettest day of the year at Hells Gate, 1951 to 1983. The record is 96.5 mm (3.8 in) in 1972, marked on the chart; the median year is 53.3 mm (2.1 in).

Wettest day (Rx1day) at Hells Gate by year
Year	Wettest day (Rx1day)
1951	38.6 mm (1.5 in)
1952	26.7 mm (1.1 in)
1953	63.5 mm (2.5 in)
1954	67.3 mm (2.6 in)
1955	86.9 mm (3.4 in)
1956	67.6 mm (2.7 in)
1957	35.8 mm (1.4 in)
1958	53.3 mm (2.1 in)
1959	39.1 mm (1.5 in)
1960	46.5 mm (1.8 in)
1961	88.6 mm (3.5 in)
1962	57.9 mm (2.3 in)
1963	93.5 mm (3.7 in)
1964	40.1 mm (1.6 in)
1965	63.0 mm (2.5 in)
1966	50.5 mm (2.0 in)
1967	45.0 mm (1.8 in)
1968	51.8 mm (2.0 in)
1969	46.5 mm (1.8 in)
1970	41.4 mm (1.6 in)
1971	62.5 mm (2.5 in)
1972	96.5 mm (3.8 in)
1973	71.6 mm (2.8 in)
1974	86.1 mm (3.4 in)
1975	66.5 mm (2.6 in)
1976	40.9 mm (1.6 in)
1977	56.6 mm (2.2 in)
1978	38.2 mm (1.5 in)
1979	62.0 mm (2.4 in)
1980	61.0 mm (2.4 in)
1981	49.4 mm (1.9 in)
1982	44.0 mm (1.7 in)
1983	45.8 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hells Gate, 1951 to 1983. The record is 217.6 mm (8.6 in) in 1974, marked on the chart; the median year is 127.5 mm (5.0 in).

Wettest five days (Rx5day) at Hells Gate by year
Year	Wettest five days (Rx5day)
1951	76.0 mm (3.0 in)
1952	71.9 mm (2.8 in)
1953	165.6 mm (6.5 in)
1954	192.3 mm (7.6 in)
1955	155.9 mm (6.1 in)
1956	163.2 mm (6.4 in)
1957	78.5 mm (3.1 in)
1958	116.5 mm (4.6 in)
1959	91.4 mm (3.6 in)
1960	96.0 mm (3.8 in)
1961	182.5 mm (7.2 in)
1962	99.5 mm (3.9 in)
1963	198.5 mm (7.8 in)
1964	78.1 mm (3.1 in)
1965	128.1 mm (5.0 in)
1966	148.7 mm (5.9 in)
1967	122.1 mm (4.8 in)
1968	136.7 mm (5.4 in)
1969	127.5 mm (5.0 in)
1970	105.6 mm (4.2 in)
1971	150.6 mm (5.9 in)
1972	210.8 mm (8.3 in)
1973	112.6 mm (4.4 in)
1974	217.6 mm (8.6 in)
1975	200.4 mm (7.9 in)
1976	97.5 mm (3.8 in)
1977	138.8 mm (5.5 in)
1978	97.4 mm (3.8 in)
1979	157.0 mm (6.2 in)
1980	153.0 mm (6.0 in)
1981	104.0 mm (4.1 in)
1982	81.6 mm (3.2 in)
1983	101.2 mm (4.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hells Gate, 1951 to 1983. The record is 56 days in 1960, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Hells Gate by year
Year	Longest dry spell (CDD)
1951	37 days
1952	40 days
1953	31 days
1954	22 days
1955	24 days
1956	47 days
1957	19 days
1958	38 days
1959	18 days
1960	56 days
1961	25 days
1962	17 days
1963	24 days
1964	16 days
1965	27 days
1966	14 days
1967	27 days
1968	24 days
1969	23 days
1970	40 days
1971	37 days
1972	16 days
1973	39 days
1974	35 days
1975	26 days
1976	23 days
1977	25 days
1978	26 days
1979	33 days
1980	21 days
1981	36 days
1982	19 days
1983	17 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

24 years with a frost

Across 24 years with a frost, the median last spring frost at Hells Gate falls on 13 April and the median first autumn frost on 4 November, which leaves a median of 204 days between them.

Frost dates and growing season at Hells Gate
Measure	Median, all years	Earliest period	Recent period (1952 to 1983)	Recent against earliest	Fitted trend
Last spring frost	13 April	n/a	13 April	n/a	n/a
First autumn frost	4 November	n/a	4 November	n/a	n/a
Growing days	204 days	n/a	204 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.

Rainfall Return Levels

30 years, 1952 to 1983

A day with at least 56.3 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 113.7 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Hells Gate: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	56.3 mm (2.2 in)
5 years	72.8 mm (2.9 in)
10 years	83.2 mm (3.3 in)
25 years	95.9 mm (3.8 in)
50 years	105.0 mm (4.1 in)	Longer than the 30 years of record
100 years	113.7 mm (4.5 in)	Longer than the 30 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, 30 years of values from 1952 to 1983.

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: 96.5 mm (3.8 in) in 1972; 93.5 mm (3.7 in) in 1963; 88.6 mm (3.5 in) in 1961.

Download the Data

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