Record envelope, standing records and threshold days for Smithers Cda (CA001077505), British Columbia, Canada, with 31 years of record.
Key Facts for Smithers Cda
Smithers Cda (CA001077505) is a weather station in British Columbia, Canada at 54.73 latitude and -127.10 longitude, 515 m (1,690 ft) above sea level.
The station reports from 1938 to 1968, 31 years of record.
1,464 records set at Smithers Cda still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Smithers Cda tied a daily record high minimum temperature of 11.1 C (52.0 F) on 21 July 1968.
About the Station
Location: British Columbia, Canada, 54.73 latitude, -127.10 longitude.
Elevation: 515 m (1,690 ft).
Period of record: 1938 to 1968, 31 years.
Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Smithers Cda. 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 Smithers Cda, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
13.3 C (55.9 F)
-44.4 C (-47.9 F)
n/a
n/a
Feb
12.2 C (54.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Mar
16.1 C (61.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Apr
23.3 C (73.9 F)
-18.3 C (-0.9 F)
n/a
n/a
May
30.0 C (86.0 F)
-8.9 C (16.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
37.2 C (99.0 F)
-2.2 C (28.0 F)
n/a
n/a
Aug
34.4 C (93.9 F)
-4.4 C (24.1 F)
n/a
n/a
Sep
30.6 C (87.1 F)
-8.3 C (17.1 F)
n/a
n/a
Oct
23.9 C (75.0 F)
-13.9 C (7.0 F)
n/a
n/a
Nov
15.0 C (59.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Dec
10.0 C (50.0 F)
-41.1 C (-42.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Smithers Cda still stand. 1950 holds the most, with 81.
Standing records at Smithers Cda by the year they were set
Year set
Standing records
1938
34
1939
64
1940
47
1941
67
1942
47
1943
52
1944
39
1945
33
1946
22
1947
63
1948
54
1949
55
1950
81
1951
70
1952
33
1953
30
1954
57
1955
68
1956
48
1957
36
1958
59
1959
42
1960
27
1961
43
1962
35
1963
50
1964
50
1965
57
1966
42
1967
39
1968
20
Wettest Day of Each Month
Nov: 50.8 mm (2.0 in)
The wettest day on record for each calendar month at Smithers Cda. The most was 50.8 mm (2.0 in) on 2 November 1945.
Record daily precipitation for each month at Smithers Cda
Month
Record daily precipitation (mm)
Date
Jan
42.2 mm (1.7 in)
17 January 1947
Feb
38.1 mm (1.5 in)
17 February 1939
Mar
30.5 mm (1.2 in)
2 March 1950
Apr
26.4 mm (1.0 in)
12 April 1947
May
39.4 mm (1.6 in)
15 May 1948
Jun
32.8 mm (1.3 in)
10 June 1958
Jul
33.3 mm (1.3 in)
21 July 1945
Aug
39.4 mm (1.6 in)
30 August 1960
Sep
27.9 mm (1.1 in)
26 September 1958
Oct
50.0 mm (2.0 in)
26 October 1951
Nov
50.8 mm (2.0 in)
2 November 1945
Dec
41.9 mm (1.6 in)
2 December 1947
Period of Record Coverage
1938 to 1968
Complete yearUnder 90 percent of days
31 years of record at Smithers Cda, 1938 to 1968. 2 years have data for under 90 percent of days and are left out of rankings: 1948, 1968.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Smithers Cda, 1939 to 1967. Blue stripes are years cooler than the station's own mean of 3.2 C (37.8 F); red stripes are warmer. The coolest year was 1955, at 1.3 C (34.3 F), and the warmest was 1958, at 4.5 C (40.0 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Smithers Cda as warming stripes, 1939 to 1967
Year
Annual mean temperature
Difference from the station mean
1939
3.3 C
+0.07 C
1940
4.0 C
+0.79 C
1941
4.4 C
+1.20 C
1942
4.4 C
+1.18 C
1943
3.8 C
+0.61 C
1944
4.2 C
+0.97 C
1945
3.3 C
+0.09 C
1946
3.1 C
-0.06 C
1947
3.4 C
+0.15 C
1949
2.7 C
-0.49 C
1951
2.1 C
-1.15 C
1952
3.6 C
+0.35 C
1953
4.2 C
+0.99 C
1954
3.4 C
+0.18 C
1955
1.3 C
-1.93 C
1956
1.9 C
-1.29 C
1957
2.3 C
-0.93 C
1958
4.5 C
+1.25 C
1959
2.7 C
-0.49 C
1960
3.2 C
-0.05 C
1961
3.6 C
+0.35 C
1962
3.2 C
+0.01 C
1963
3.7 C
+0.46 C
1964
2.1 C
-1.07 C
1965
2.8 C
-0.36 C
1966
2.5 C
-0.75 C
1967
3.2 C
0.00 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
1938 to 1968
Yearly extremes at Smithers Cda: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.2 C (99.0 F)
1941
31.7 C (89.1 F)
31
Coldest night (TNn)
-44.4 C (-47.9 F)
1947
-34.4 C (-29.9 F)
31
Wettest day (Rx1day)
50.8 mm (2.0 in)
1945
28.7 mm (1.1 in)
31
Wettest five days (Rx5day)
87.4 mm (3.4 in)
1948
44.3 mm (1.7 in)
31
Longest dry spell (CDD)
59 days
1956
24 days
31
Hottest day (TXx)
The hottest day of the year at Smithers Cda, 1938 to 1968. The record is 37.2 C (99.0 F) in 1941, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Smithers Cda by year
Year
Hottest day (TXx)
1938
30.6 C (87.1 F)
1939
32.8 C (91.0 F)
1940
30.6 C (87.1 F)
1941
37.2 C (99.0 F)
1942
32.8 C (91.0 F)
1943
27.8 C (82.0 F)
1944
30.6 C (87.1 F)
1945
31.1 C (88.0 F)
1946
28.9 C (84.0 F)
1947
30.0 C (86.0 F)
1948
36.7 C (98.1 F)
1949
28.9 C (84.0 F)
1950
33.9 C (93.0 F)
1951
34.4 C (93.9 F)
1952
32.8 C (91.0 F)
1953
31.7 C (89.1 F)
1954
28.3 C (82.9 F)
1955
31.7 C (89.1 F)
1956
32.2 C (90.0 F)
1957
28.3 C (82.9 F)
1958
32.8 C (91.0 F)
1959
30.0 C (86.0 F)
1960
34.4 C (93.9 F)
1961
31.1 C (88.0 F)
1962
31.7 C (89.1 F)
1963
29.4 C (84.9 F)
1964
27.8 C (82.0 F)
1965
33.3 C (91.9 F)
1966
30.6 C (87.1 F)
1967
32.2 C (90.0 F)
1968
32.2 C (90.0 F)
Coldest night (TNn)
The coldest night of the year at Smithers Cda, 1938 to 1968. The record is -44.4 C (-47.9 F) in 1947, marked on the chart; the median year is -34.4 C (-29.9 F).
Coldest night (TNn) at Smithers Cda by year
Year
Coldest night (TNn)
1938
-27.2 C (-17.0 F)
1939
-37.8 C (-36.0 F)
1940
-26.1 C (-15.0 F)
1941
-29.4 C (-20.9 F)
1942
-27.2 C (-17.0 F)
1943
-35.6 C (-32.1 F)
1944
-27.2 C (-17.0 F)
1945
-23.9 C (-11.0 F)
1946
-27.8 C (-18.0 F)
1947
-44.4 C (-47.9 F)
1948
-35.0 C (-31.0 F)
1949
-33.9 C (-29.0 F)
1950
-42.8 C (-45.0 F)
1951
-35.0 C (-31.0 F)
1952
-29.4 C (-20.9 F)
1953
-37.8 C (-36.0 F)
1954
-37.8 C (-36.0 F)
1955
-34.4 C (-29.9 F)
1956
-38.9 C (-38.0 F)
1957
-37.2 C (-35.0 F)
1958
-32.2 C (-26.0 F)
1959
-35.0 C (-31.0 F)
1960
-27.2 C (-17.0 F)
1961
-26.7 C (-16.1 F)
1962
-36.1 C (-33.0 F)
1963
-30.6 C (-23.1 F)
1964
-41.1 C (-42.0 F)
1965
-36.1 C (-33.0 F)
1966
-34.4 C (-29.9 F)
1967
-31.1 C (-24.0 F)
1968
-33.9 C (-29.0 F)
Wettest day (Rx1day)
The wettest day of the year at Smithers Cda, 1938 to 1968. The record is 50.8 mm (2.0 in) in 1945, marked on the chart; the median year is 28.7 mm (1.1 in).
Wettest day (Rx1day) at Smithers Cda by year
Year
Wettest day (Rx1day)
1938
21.8 mm (0.9 in)
1939
38.1 mm (1.5 in)
1940
12.7 mm (0.5 in)
1941
22.1 mm (0.9 in)
1942
33.5 mm (1.3 in)
1943
23.6 mm (0.9 in)
1944
27.4 mm (1.1 in)
1945
50.8 mm (2.0 in)
1946
27.7 mm (1.1 in)
1947
42.2 mm (1.7 in)
1948
39.4 mm (1.6 in)
1949
33.3 mm (1.3 in)
1950
30.5 mm (1.2 in)
1951
50.0 mm (2.0 in)
1952
32.3 mm (1.3 in)
1953
28.7 mm (1.1 in)
1954
16.5 mm (0.6 in)
1955
22.6 mm (0.9 in)
1956
30.0 mm (1.2 in)
1957
35.3 mm (1.4 in)
1958
32.8 mm (1.3 in)
1959
27.9 mm (1.1 in)
1960
39.4 mm (1.6 in)
1961
23.9 mm (0.9 in)
1962
36.8 mm (1.4 in)
1963
21.3 mm (0.8 in)
1964
22.9 mm (0.9 in)
1965
19.6 mm (0.8 in)
1966
37.8 mm (1.5 in)
1967
18.8 mm (0.7 in)
1968
23.9 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Smithers Cda, 1938 to 1968. The record is 87.4 mm (3.4 in) in 1948, marked on the chart; the median year is 44.3 mm (1.7 in).
Wettest five days (Rx5day) at Smithers Cda by year
Year
Wettest five days (Rx5day)
1938
39.6 mm (1.6 in)
1939
58.4 mm (2.3 in)
1940
33.9 mm (1.3 in)
1941
24.5 mm (1.0 in)
1942
52.6 mm (2.1 in)
1943
27.0 mm (1.1 in)
1944
40.4 mm (1.6 in)
1945
66.6 mm (2.6 in)
1946
47.5 mm (1.9 in)
1947
67.1 mm (2.6 in)
1948
87.4 mm (3.4 in)
1949
39.6 mm (1.6 in)
1950
40.6 mm (1.6 in)
1951
85.5 mm (3.4 in)
1952
53.9 mm (2.1 in)
1953
45.0 mm (1.8 in)
1954
27.9 mm (1.1 in)
1955
34.8 mm (1.4 in)
1956
45.5 mm (1.8 in)
1957
51.0 mm (2.0 in)
1958
41.5 mm (1.6 in)
1959
40.6 mm (1.6 in)
1960
69.6 mm (2.7 in)
1961
39.2 mm (1.5 in)
1962
62.9 mm (2.5 in)
1963
44.3 mm (1.7 in)
1964
39.4 mm (1.6 in)
1965
41.9 mm (1.6 in)
1966
57.4 mm (2.3 in)
1967
34.3 mm (1.4 in)
1968
50.1 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Smithers Cda, 1938 to 1968. The record is 59 days in 1956, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Smithers Cda by year
Year
Longest dry spell (CDD)
1938
43 days
1939
21 days
1940
36 days
1941
21 days
1942
26 days
1943
36 days
1944
25 days
1945
18 days
1946
42 days
1947
21 days
1948
26 days
1949
20 days
1950
18 days
1951
23 days
1952
31 days
1953
24 days
1954
29 days
1955
20 days
1956
59 days
1957
28 days
1958
44 days
1959
22 days
1960
22 days
1961
35 days
1962
53 days
1963
24 days
1964
15 days
1965
37 days
1966
23 days
1967
22 days
1968
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
27 years with a frost
Across 27 years with a frost, the median last spring frost at Smithers Cda falls on 20 June and the median first autumn frost on 8 July, which leaves a median of 24 days between them.
Fitted over all years, the growing season changes by -1.9 days per decade at this station.
Frost dates and growing season at Smithers Cda
Measure
Median, all years
Earliest period
Recent period (1939 to 1967)
Recent against earliest
Fitted trend
Last spring frost
20 June
n/a
20 June
n/a
+3.3 days per decade
First autumn frost
8 July
n/a
8 July
n/a
+1.4 days per decade
Growing days
24 days
n/a
24 days
n/a
-1.9 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
30 years, 1938 to 1967
A day with at least 29.2 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 55.2 mm (2.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Smithers Cda: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
29.2 mm (1.1 in)
5 years
37.8 mm (1.5 in)
10 years
42.7 mm (1.7 in)
25 years
48.3 mm (1.9 in)
50 years
51.9 mm (2.0 in)
Longer than the 30 years of record
100 years
55.2 mm (2.2 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 1938 to 1967.
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: 50.8 mm (2.0 in) in 1945; 50.0 mm (2.0 in) in 1951; 42.2 mm (1.7 in) in 1947.
Download the Data
Data for Smithers Cda standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Smithers Cda 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.