Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at St Bruno. 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 St Bruno, 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)
-35.6 C (-32.1 F)
n/a
n/a
Feb
11.1 C (52.0 F)
-36.1 C (-33.0 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-29.4 C (-20.9 F)
n/a
n/a
Apr
28.3 C (82.9 F)
-13.9 C (7.0 F)
n/a
n/a
May
33.9 C (93.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
35.0 C (95.0 F)
5.0 C (41.0 F)
n/a
n/a
Aug
34.4 C (93.9 F)
3.9 C (39.0 F)
n/a
n/a
Sep
33.3 C (91.9 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-10.6 C (12.9 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-36.1 C (-33.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at St Bruno still stand. 1933 holds the most, with 71.
Standing records at St Bruno by the year they were set
Year set
Standing records
1926
33
1927
43
1928
24
1929
57
1930
52
1931
47
1932
46
1933
71
1934
61
1935
28
1936
55
1937
35
1938
33
1939
41
1940
40
1941
44
1942
43
1943
47
1944
58
1945
66
1946
63
1947
47
1948
42
1949
45
1950
59
1951
39
1952
29
1953
42
1954
34
1955
34
1956
44
1957
44
1958
18
All-Time Record Progression
2 new records
2 all-time records were set at St Bruno between 16 February 1958 and 5 July 1958. Each dot is a new record.
When St Bruno set new all-time records
Date
Kind
Detail
1958-02-16
Record daily snowfall
Record daily snowfall 43.2 cm (17.0 in)
1958-07-05
Record daily precipitation
Record daily precipitation 77.7 mm (3.1 in)
Wettest Day of Each Month
Jul: 77.7 mm (3.1 in)
The wettest day on record for each calendar month at St Bruno. The most was 77.7 mm (3.1 in) on 5 July 1958.
Record daily precipitation for each month at St Bruno
Month
Record daily precipitation (mm)
Date
Jan
38.9 mm (1.5 in)
20 January 1947
Feb
43.2 mm (1.7 in)
16 February 1958
Mar
37.1 mm (1.5 in)
8 March 1950
Apr
35.8 mm (1.4 in)
5 April 1937
May
40.1 mm (1.6 in)
18 May 1945
Jun
74.4 mm (2.9 in)
15 June 1943
Jul
77.7 mm (3.1 in)
5 July 1958
Aug
68.8 mm (2.7 in)
7 August 1926
Sep
68.1 mm (2.7 in)
29 September 1946
Oct
72.4 mm (2.9 in)
6 October 1932
Nov
66.0 mm (2.6 in)
17 November 1927
Dec
43.9 mm (1.7 in)
5 December 1952
Period of Record Coverage
1926 to 1958
Complete yearUnder 90 percent of days
33 years of record at St Bruno, 1926 to 1958. 5 years have data for under 90 percent of days and are left out of rankings: 1926, 1945, 1953, 1954, 1958.
Cooler than the station meanWarmer than the station mean
One stripe for each of 24 complete years at St Bruno, 1927 to 1957. Blue stripes are years cooler than the station's own mean of 6.2 C (43.2 F); red stripes are warmer. The coolest year was 1943, at 4.6 C (40.2 F), and the warmest was 1931, at 8.0 C (46.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at St Bruno as warming stripes, 1927 to 1957
Year
Annual mean temperature
Difference from the station mean
1927
6.6 C
+0.36 C
1928
6.3 C
+0.06 C
1930
7.2 C
+0.98 C
1931
8.0 C
+1.77 C
1932
7.1 C
+0.87 C
1933
6.7 C
+0.46 C
1934
5.7 C
-0.51 C
1935
5.3 C
-0.98 C
1936
5.2 C
-0.99 C
1937
6.7 C
+0.48 C
1938
6.1 C
-0.09 C
1940
4.9 C
-1.30 C
1941
6.3 C
+0.02 C
1942
6.3 C
+0.08 C
1943
4.6 C
-1.65 C
1944
5.6 C
-0.62 C
1946
6.7 C
+0.43 C
1948
6.3 C
+0.05 C
1949
7.0 C
+0.80 C
1951
5.8 C
-0.43 C
1952
6.4 C
+0.19 C
1955
6.5 C
+0.29 C
1956
5.6 C
-0.62 C
1957
6.6 C
+0.37 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
1926 to 1958
Yearly extremes at St Bruno: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.0 C (95.0 F)
1931
32.8 C (91.0 F)
33
Coldest night (TNn)
-36.1 C (-33.0 F)
1933
-27.2 C (-17.0 F)
33
Wettest day (Rx1day)
77.7 mm (3.1 in)
1958
42.9 mm (1.7 in)
33
Wettest five days (Rx5day)
120.9 mm (4.8 in)
1943
67.3 mm (2.6 in)
33
Longest dry spell (CDD)
27 days
1930
16 days
33
Hottest day (TXx)
The hottest day of the year at St Bruno, 1926 to 1958. The record is 35.0 C (95.0 F) in 1931, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at St Bruno by year
Year
Hottest day (TXx)
1926
32.8 C (91.0 F)
1927
28.9 C (84.0 F)
1928
33.9 C (93.0 F)
1929
33.9 C (93.0 F)
1930
31.7 C (89.1 F)
1931
35.0 C (95.0 F)
1932
33.9 C (93.0 F)
1933
35.0 C (95.0 F)
1934
33.9 C (93.0 F)
1935
33.3 C (91.9 F)
1936
32.8 C (91.0 F)
1937
32.2 C (90.0 F)
1938
33.9 C (93.0 F)
1939
32.8 C (91.0 F)
1940
32.2 C (90.0 F)
1941
34.4 C (93.9 F)
1942
32.8 C (91.0 F)
1943
32.2 C (90.0 F)
1944
34.4 C (93.9 F)
1945
32.8 C (91.0 F)
1946
33.3 C (91.9 F)
1947
33.3 C (91.9 F)
1948
33.9 C (93.0 F)
1949
35.0 C (95.0 F)
1950
32.2 C (90.0 F)
1951
28.9 C (84.0 F)
1952
32.2 C (90.0 F)
1953
34.4 C (93.9 F)
1954
31.7 C (89.1 F)
1955
35.0 C (95.0 F)
1956
32.2 C (90.0 F)
1957
32.8 C (91.0 F)
1958
29.4 C (84.9 F)
Coldest night (TNn)
The coldest night of the year at St Bruno, 1926 to 1958. The record is -36.1 C (-33.0 F) in 1933, marked on the chart; the median year is -27.2 C (-17.0 F).
Coldest night (TNn) at St Bruno by year
Year
Coldest night (TNn)
1926
-22.2 C (-8.0 F)
1927
-27.8 C (-18.0 F)
1928
-25.6 C (-14.1 F)
1929
-26.7 C (-16.1 F)
1930
-28.3 C (-18.9 F)
1931
-28.3 C (-18.9 F)
1932
-26.1 C (-15.0 F)
1933
-36.1 C (-33.0 F)
1934
-33.9 C (-29.0 F)
1935
-33.9 C (-29.0 F)
1936
-26.1 C (-15.0 F)
1937
-22.8 C (-9.0 F)
1938
-25.0 C (-13.0 F)
1939
-26.1 C (-15.0 F)
1940
-26.7 C (-16.1 F)
1941
-27.2 C (-17.0 F)
1942
-32.8 C (-27.0 F)
1943
-36.1 C (-33.0 F)
1944
-26.1 C (-15.0 F)
1945
-28.9 C (-20.0 F)
1946
-28.3 C (-18.9 F)
1947
-24.4 C (-11.9 F)
1948
-28.9 C (-20.0 F)
1949
-21.7 C (-7.1 F)
1950
-29.4 C (-20.9 F)
1951
-32.2 C (-26.0 F)
1952
-26.1 C (-15.0 F)
1953
-23.9 C (-11.0 F)
1954
-27.8 C (-18.0 F)
1955
-30.0 C (-22.0 F)
1956
-25.0 C (-13.0 F)
1957
-35.6 C (-32.1 F)
1958
-25.0 C (-13.0 F)
Wettest day (Rx1day)
The wettest day of the year at St Bruno, 1926 to 1958. The record is 77.7 mm (3.1 in) in 1958, marked on the chart; the median year is 42.9 mm (1.7 in).
Wettest day (Rx1day) at St Bruno by year
Year
Wettest day (Rx1day)
1926
68.8 mm (2.7 in)
1927
66.0 mm (2.6 in)
1928
57.7 mm (2.3 in)
1929
58.4 mm (2.3 in)
1930
35.8 mm (1.4 in)
1931
28.7 mm (1.1 in)
1932
72.4 mm (2.9 in)
1933
32.3 mm (1.3 in)
1934
49.3 mm (1.9 in)
1935
35.6 mm (1.4 in)
1936
32.0 mm (1.3 in)
1937
37.1 mm (1.5 in)
1938
49.5 mm (1.9 in)
1939
36.3 mm (1.4 in)
1940
40.4 mm (1.6 in)
1941
25.9 mm (1.0 in)
1942
35.6 mm (1.4 in)
1943
74.4 mm (2.9 in)
1944
27.9 mm (1.1 in)
1945
40.1 mm (1.6 in)
1946
68.1 mm (2.7 in)
1947
41.1 mm (1.6 in)
1948
35.6 mm (1.4 in)
1949
58.9 mm (2.3 in)
1950
57.7 mm (2.3 in)
1951
42.9 mm (1.7 in)
1952
62.0 mm (2.4 in)
1953
44.5 mm (1.8 in)
1954
66.3 mm (2.6 in)
1955
29.7 mm (1.2 in)
1956
41.4 mm (1.6 in)
1957
54.4 mm (2.1 in)
1958
77.7 mm (3.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at St Bruno, 1926 to 1958. The record is 120.9 mm (4.8 in) in 1943, marked on the chart; the median year is 67.3 mm (2.6 in).
Wettest five days (Rx5day) at St Bruno by year
Year
Wettest five days (Rx5day)
1926
108.7 mm (4.3 in)
1927
118.5 mm (4.7 in)
1928
76.3 mm (3.0 in)
1929
81.3 mm (3.2 in)
1930
70.1 mm (2.8 in)
1931
62.2 mm (2.4 in)
1932
117.9 mm (4.6 in)
1933
64.6 mm (2.5 in)
1934
63.8 mm (2.5 in)
1935
53.3 mm (2.1 in)
1936
52.3 mm (2.1 in)
1937
73.0 mm (2.9 in)
1938
74.3 mm (2.9 in)
1939
63.7 mm (2.5 in)
1940
43.7 mm (1.7 in)
1941
50.9 mm (2.0 in)
1942
52.6 mm (2.1 in)
1943
120.9 mm (4.8 in)
1944
37.9 mm (1.5 in)
1945
65.0 mm (2.6 in)
1946
104.7 mm (4.1 in)
1947
66.6 mm (2.6 in)
1948
65.9 mm (2.6 in)
1949
99.2 mm (3.9 in)
1950
70.4 mm (2.8 in)
1951
75.5 mm (3.0 in)
1952
65.8 mm (2.6 in)
1953
67.3 mm (2.6 in)
1954
90.2 mm (3.6 in)
1955
62.5 mm (2.5 in)
1956
63.1 mm (2.5 in)
1957
96.9 mm (3.8 in)
1958
104.1 mm (4.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at St Bruno, 1926 to 1958. The record is 27 days in 1930, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at St Bruno by year
Year
Longest dry spell (CDD)
1926
13 days
1927
15 days
1928
25 days
1929
13 days
1930
27 days
1931
14 days
1932
19 days
1933
14 days
1934
14 days
1935
18 days
1936
27 days
1937
15 days
1938
12 days
1939
23 days
1940
19 days
1941
21 days
1942
14 days
1943
13 days
1944
17 days
1945
17 days
1946
10 days
1947
16 days
1948
16 days
1949
17 days
1950
17 days
1951
16 days
1952
18 days
1953
15 days
1954
14 days
1955
10 days
1956
15 days
1957
17 days
1958
8 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 St Bruno falls on 5 May and the median first autumn frost on 2 October, which leaves a median of 150 days between them.
Frost dates and growing season at St Bruno
Measure
Median, all years
Earliest period
Recent period (1927 to 1957)
Recent against earliest
Fitted trend
Last spring frost
5 May
n/a
5 May
n/a
n/a
First autumn frost
2 October
n/a
2 October
n/a
n/a
Growing days
150 days
n/a
150 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.
Download the Data
Data for St Bruno standing records by year: CSV or JSON. Field meanings are on the data page.
Data for St Bruno 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.