Record envelope, standing records and threshold days for Rock Creek (CA001136812), British Columbia, Canada, with 36 years of record.
Key Facts for Rock Creek
Rock Creek (CA001136812) is a weather station in British Columbia, Canada at 49.07 latitude and -119.02 longitude, 610 m (2,001 ft) above sea level.
The station reports from 1912 to 1947, 36 years of record.
1,464 records set at Rock Creek still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Rock Creek set a daily record precipitation of 3.8 mm (0.15 in) on 7 December 1947.
About the Station
Location: British Columbia, Canada, 49.07 latitude, -119.02 longitude.
Elevation: 610 m (2,001 ft).
Period of record: 1912 to 1947, 36 years.
Eligible elements: 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 Rock Creek. 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 Rock Creek, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
8.9 C (48.0 F)
-41.7 C (-43.1 F)
n/a
n/a
Feb
13.3 C (55.9 F)
-40.0 C (-40.0 F)
n/a
n/a
Mar
25.0 C (77.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-13.9 C (7.0 F)
n/a
n/a
May
38.9 C (102.0 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
43.9 C (111.0 F)
1.1 C (34.0 F)
n/a
n/a
Aug
40.6 C (105.1 F)
-0.6 C (30.9 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-8.9 C (16.0 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Nov
15.6 C (60.1 F)
-25.0 C (-13.0 F)
n/a
n/a
Dec
12.8 C (55.0 F)
-40.0 C (-40.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rock Creek still stand. 1924 holds the most, with 84.
Standing records at Rock Creek by the year they were set
Year set
Standing records
1920
7
1921
63
1922
71
1923
53
1924
84
1925
44
1926
52
1927
48
1928
50
1929
35
1930
67
1931
54
1932
64
1933
53
1934
76
1935
62
1936
79
1937
58
1938
37
1939
42
1940
55
1941
71
1942
38
1943
42
1944
36
1945
41
1946
41
1947
41
Wettest Day of Each Month
Jul: 53.3 mm (2.1 in)
The wettest day on record for each calendar month at Rock Creek. The most was 53.3 mm (2.1 in) on 8 July 1916.
Record daily precipitation for each month at Rock Creek
Month
Record daily precipitation (mm)
Date
Jan
21.6 mm (0.9 in)
31 January 1937
Feb
22.4 mm (0.9 in)
20 February 1937
Mar
44.5 mm (1.8 in)
28 March 1917
Apr
30.5 mm (1.2 in)
26 April 1936
May
22.9 mm (0.9 in)
25 May 1942
Jun
29.7 mm (1.2 in)
30 June 1928
Jul
53.3 mm (2.1 in)
8 July 1916
Aug
38.1 mm (1.5 in)
2 August 1918
Sep
35.6 mm (1.4 in)
29 September 1944
Oct
25.4 mm (1.0 in)
1 October 1940
Nov
22.9 mm (0.9 in)
12 November 1927
Dec
29.2 mm (1.1 in)
1 December 1927
Period of Record Coverage
1920 to 1947
Complete yearUnder 90 percent of days
28 years of record at Rock Creek, 1920 to 1947. 1 years have data for under 90 percent of days and are left out of rankings: 1920.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Rock Creek, 1921 to 1947. Blue stripes are years cooler than the station's own mean of 6.6 C (43.9 F); red stripes are warmer. The coolest year was 1922, at 5.3 C (41.6 F), and the warmest was 1941, at 8.4 C (47.0 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Rock Creek as warming stripes, 1921 to 1947
Year
Annual mean temperature
Difference from the station mean
1921
5.6 C
-0.99 C
1922
5.3 C
-1.28 C
1923
6.7 C
+0.08 C
1924
6.3 C
-0.31 C
1925
7.7 C
+1.03 C
1926
7.5 C
+0.84 C
1927
5.5 C
-1.12 C
1928
6.4 C
-0.22 C
1929
5.5 C
-1.08 C
1930
5.9 C
-0.76 C
1931
7.2 C
+0.60 C
1932
6.1 C
-0.50 C
1933
6.0 C
-0.64 C
1934
8.1 C
+1.44 C
1935
5.9 C
-0.76 C
1936
5.8 C
-0.79 C
1937
6.2 C
-0.47 C
1938
7.5 C
+0.90 C
1939
7.4 C
+0.80 C
1940
8.2 C
+1.60 C
1941
8.4 C
+1.73 C
1942
7.2 C
+0.54 C
1943
6.4 C
-0.21 C
1944
6.3 C
-0.34 C
1945
6.2 C
-0.42 C
1946
6.4 C
-0.27 C
1947
7.1 C
+0.48 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
1912 to 1947
Yearly extremes at Rock Creek: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1934
38.1 C (100.5 F)
28
Coldest night (TNn)
-41.7 C (-43.1 F)
1924
-30.0 C (-22.0 F)
28
Wettest day (Rx1day)
53.3 mm (2.1 in)
1916
22.1 mm (0.9 in)
36
Wettest five days (Rx5day)
63.3 mm (2.5 in)
1915
37.0 mm (1.5 in)
36
Longest dry spell (CDD)
108 days
1945
36 days
36
Hottest day (TXx)
The hottest day of the year at Rock Creek, 1912 to 1947. The record is 43.9 C (111.0 F) in 1934, marked on the chart; the median year is 38.1 C (100.5 F).
Hottest day (TXx) at Rock Creek by year
Year
Hottest day (TXx)
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
16.7 C (62.1 F)
1921
35.6 C (96.1 F)
1922
36.7 C (98.1 F)
1923
37.8 C (100.0 F)
1924
40.0 C (104.0 F)
1925
37.8 C (100.0 F)
1926
38.3 C (100.9 F)
1927
37.8 C (100.0 F)
1928
38.9 C (102.0 F)
1929
38.9 C (102.0 F)
1930
39.4 C (102.9 F)
1931
38.3 C (100.9 F)
1932
37.2 C (99.0 F)
1933
40.6 C (105.1 F)
1934
43.9 C (111.0 F)
1935
38.3 C (100.9 F)
1936
38.9 C (102.0 F)
1937
37.8 C (100.0 F)
1938
39.4 C (102.9 F)
1939
41.7 C (107.1 F)
1940
40.6 C (105.1 F)
1941
40.0 C (104.0 F)
1942
37.8 C (100.0 F)
1943
36.1 C (97.0 F)
1944
37.2 C (99.0 F)
1945
36.7 C (98.1 F)
1946
36.7 C (98.1 F)
1947
36.7 C (98.1 F)
Coldest night (TNn)
The coldest night of the year at Rock Creek, 1912 to 1947. The record is -41.7 C (-43.1 F) in 1924, marked on the chart; the median year is -30.0 C (-22.0 F).
Coldest night (TNn) at Rock Creek by year
Year
Coldest night (TNn)
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
n/a
1917
n/a
1918
n/a
1919
n/a
1920
-20.0 C (-4.0 F)
1921
-27.8 C (-18.0 F)
1922
-34.4 C (-29.9 F)
1923
-35.6 C (-32.1 F)
1924
-41.7 C (-43.1 F)
1925
-27.8 C (-18.0 F)
1926
-27.8 C (-18.0 F)
1927
-40.0 C (-40.0 F)
1928
-31.7 C (-25.1 F)
1929
-34.4 C (-29.9 F)
1930
-33.9 C (-29.0 F)
1931
-26.1 C (-15.0 F)
1932
-32.8 C (-27.0 F)
1933
-38.3 C (-36.9 F)
1934
-24.4 C (-11.9 F)
1935
-40.6 C (-41.1 F)
1936
-40.0 C (-40.0 F)
1937
-36.7 C (-34.1 F)
1938
-25.0 C (-13.0 F)
1939
-32.2 C (-26.0 F)
1940
-22.2 C (-8.0 F)
1941
-16.7 C (1.9 F)
1942
-23.3 C (-9.9 F)
1943
-33.9 C (-29.0 F)
1944
-26.1 C (-15.0 F)
1945
-25.6 C (-14.1 F)
1946
-27.2 C (-17.0 F)
1947
-28.3 C (-18.9 F)
Wettest day (Rx1day)
The wettest day of the year at Rock Creek, 1912 to 1947. The record is 53.3 mm (2.1 in) in 1916, marked on the chart; the median year is 22.1 mm (0.9 in).
Wettest day (Rx1day) at Rock Creek by year
Year
Wettest day (Rx1day)
1912
12.7 mm (0.5 in)
1913
20.1 mm (0.8 in)
1914
13.0 mm (0.5 in)
1915
42.9 mm (1.7 in)
1916
53.3 mm (2.1 in)
1917
44.5 mm (1.8 in)
1918
38.1 mm (1.5 in)
1919
26.7 mm (1.1 in)
1920
15.0 mm (0.6 in)
1921
15.2 mm (0.6 in)
1922
22.1 mm (0.9 in)
1923
25.1 mm (1.0 in)
1924
18.3 mm (0.7 in)
1925
16.8 mm (0.7 in)
1926
32.0 mm (1.3 in)
1927
30.2 mm (1.2 in)
1928
29.7 mm (1.2 in)
1929
12.7 mm (0.5 in)
1930
19.8 mm (0.8 in)
1931
22.1 mm (0.9 in)
1932
18.5 mm (0.7 in)
1933
18.5 mm (0.7 in)
1934
15.5 mm (0.6 in)
1935
18.5 mm (0.7 in)
1936
30.5 mm (1.2 in)
1937
22.4 mm (0.9 in)
1938
19.3 mm (0.8 in)
1939
12.7 mm (0.5 in)
1940
25.4 mm (1.0 in)
1941
27.2 mm (1.1 in)
1942
39.6 mm (1.6 in)
1943
16.8 mm (0.7 in)
1944
45.0 mm (1.8 in)
1945
25.9 mm (1.0 in)
1946
19.1 mm (0.8 in)
1947
22.9 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rock Creek, 1912 to 1947. The record is 63.3 mm (2.5 in) in 1915, marked on the chart; the median year is 37.0 mm (1.5 in).
Wettest five days (Rx5day) at Rock Creek by year
Year
Wettest five days (Rx5day)
1912
31.6 mm (1.2 in)
1913
31.3 mm (1.2 in)
1914
24.0 mm (0.9 in)
1915
63.3 mm (2.5 in)
1916
63.0 mm (2.5 in)
1917
58.0 mm (2.3 in)
1918
39.9 mm (1.6 in)
1919
40.2 mm (1.6 in)
1920
32.5 mm (1.3 in)
1921
30.1 mm (1.2 in)
1922
32.0 mm (1.3 in)
1923
49.3 mm (1.9 in)
1924
43.0 mm (1.7 in)
1925
35.8 mm (1.4 in)
1926
37.1 mm (1.5 in)
1927
59.5 mm (2.3 in)
1928
54.5 mm (2.1 in)
1929
20.3 mm (0.8 in)
1930
35.9 mm (1.4 in)
1931
39.9 mm (1.6 in)
1932
23.9 mm (0.9 in)
1933
26.2 mm (1.0 in)
1934
28.1 mm (1.1 in)
1935
22.7 mm (0.9 in)
1936
53.8 mm (2.1 in)
1937
39.7 mm (1.6 in)
1938
33.8 mm (1.3 in)
1939
27.5 mm (1.1 in)
1940
36.8 mm (1.4 in)
1941
61.0 mm (2.4 in)
1942
46.6 mm (1.8 in)
1943
29.2 mm (1.1 in)
1944
53.4 mm (2.1 in)
1945
27.0 mm (1.1 in)
1946
54.7 mm (2.2 in)
1947
41.9 mm (1.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rock Creek, 1912 to 1947. The record is 108 days in 1945, marked on the chart; the median year is 36 days.
Longest dry spell (CDD) at Rock Creek by year
Year
Longest dry spell (CDD)
1912
23 days
1913
36 days
1914
32 days
1915
21 days
1916
38 days
1917
41 days
1918
23 days
1919
32 days
1920
32 days
1921
38 days
1922
62 days
1923
25 days
1924
31 days
1925
38 days
1926
41 days
1927
37 days
1928
30 days
1929
49 days
1930
31 days
1931
36 days
1932
33 days
1933
36 days
1934
38 days
1935
28 days
1936
65 days
1937
21 days
1938
37 days
1939
35 days
1940
38 days
1941
15 days
1942
47 days
1943
44 days
1944
46 days
1945
108 days
1946
59 days
1947
18 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 Rock Creek falls on 1 June and the median first autumn frost on 10 September, which leaves a median of 99 days between them.
Fitted over all years, the growing season changes by +6.5 days per decade at this station.
Frost dates and growing season at Rock Creek
Measure
Median, all years
Earliest period
Recent period (1921 to 1947)
Recent against earliest
Fitted trend
Last spring frost
1 June
n/a
1 June
n/a
-1.8 days per decade
First autumn frost
10 September
n/a
10 September
n/a
+4.7 days per decade
Growing days
99 days
n/a
99 days
n/a
+6.5 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
34 years, 1913 to 1947
A day with at least 22.8 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 65.8 mm (2.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Rock Creek: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
22.8 mm (0.9 in)
5 years
31.8 mm (1.3 in)
10 years
38.6 mm (1.5 in)
25 years
48.4 mm (1.9 in)
50 years
56.7 mm (2.2 in)
Longer than the 34 years of record
100 years
65.8 mm (2.6 in)
Longer than the 34 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, 34 years of values from 1913 to 1947.
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: 53.3 mm (2.1 in) in 1916; 45.0 mm (1.8 in) in 1944; 44.5 mm (1.8 in) in 1917.
Download the Data
Data for Rock Creek standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rock Creek 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.