Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at High Prairie. 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 High Prairie, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
12.8 C (55.0 F)
-51.2 C (-60.2 F)
n/a
n/a
Feb
16.1 C (61.0 F)
-48.3 C (-54.9 F)
n/a
n/a
Mar
18.9 C (66.0 F)
-41.7 C (-43.1 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-35.0 C (-31.0 F)
n/a
n/a
May
32.2 C (90.0 F)
-12.8 C (9.0 F)
n/a
n/a
Jun
34.4 C (93.9 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
36.1 C (97.0 F)
-2.2 C (28.0 F)
n/a
n/a
Aug
33.9 C (93.0 F)
-5.0 C (23.0 F)
n/a
n/a
Sep
31.1 C (88.0 F)
-15.6 C (3.9 F)
n/a
n/a
Oct
27.8 C (82.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Nov
20.6 C (69.1 F)
-38.9 C (-38.0 F)
n/a
n/a
Dec
12.8 C (55.0 F)
-47.8 C (-54.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at High Prairie still stand. 1936 holds the most, with 61.
Standing records at High Prairie by the year they were set
Year set
Standing records
1926
8
1927
22
1928
22
1932
30
1933
46
1934
49
1935
49
1936
61
1937
24
1938
34
1939
38
1940
21
1941
28
1942
33
1943
31
1944
23
1945
33
1946
28
1947
28
1948
34
1949
46
1950
50
1951
49
1952
22
1953
28
1954
57
1955
48
1956
55
1957
25
1958
34
1959
43
1960
11
1961
51
1962
19
1963
29
1964
24
1965
6
1966
30
1967
13
1968
17
1969
19
1970
22
1971
18
1972
18
1973
21
1974
26
1975
14
1976
20
1977
7
Wettest Day of Each Month
Jun: 61.0 mm (2.4 in)
The wettest day on record for each calendar month at High Prairie. The most was 61.0 mm (2.4 in) on 10 June 1956.
Record daily precipitation for each month at High Prairie
Month
Record daily precipitation (mm)
Date
Jan
19.1 mm (0.8 in)
19 January 1944
Feb
12.7 mm (0.5 in)
20 February 1933
Mar
15.7 mm (0.6 in)
16 March 1966
Apr
44.2 mm (1.7 in)
17 April 1932
May
30.7 mm (1.2 in)
9 May 1953
Jun
61.0 mm (2.4 in)
10 June 1956
Jul
51.8 mm (2.0 in)
20 July 1952
Aug
55.6 mm (2.2 in)
14 August 1935
Sep
38.1 mm (1.5 in)
2 September 1969
Oct
37.3 mm (1.5 in)
5 October 1939
Nov
25.9 mm (1.0 in)
23 November 1957
Dec
22.9 mm (0.9 in)
21 December 1974
Period of Record Coverage
1926 to 1977
Complete yearUnder 90 percent of days
49 years of record at High Prairie, 1926 to 1977. 7 years have data for under 90 percent of days and are left out of rankings: 1926, 1927, 1964, 1965, 1971, 1976, 1977.
Cooler than the station meanWarmer than the station mean
One stripe for each of 36 complete years at High Prairie, 1928 to 1975. Blue stripes are years cooler than the station's own mean of 1.2 C (34.2 F); red stripes are warmer. The coolest year was 1950, at -1.0 C (30.3 F), and the warmest was 1944, at 3.4 C (38.1 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at High Prairie as warming stripes, 1928 to 1975
Year
Annual mean temperature
Difference from the station mean
1928
3.1 C
+1.92 C
1932
0.6 C
-0.62 C
1933
-0.8 C
-1.98 C
1934
2.5 C
+1.31 C
1935
0.5 C
-0.75 C
1937
1.2 C
+0.01 C
1938
2.8 C
+1.63 C
1940
2.3 C
+1.07 C
1941
2.3 C
+1.12 C
1942
2.5 C
+1.31 C
1943
2.9 C
+1.71 C
1944
3.4 C
+2.20 C
1945
1.0 C
-0.18 C
1946
1.1 C
-0.08 C
1947
1.2 C
+0.02 C
1948
1.3 C
+0.06 C
1949
1.3 C
+0.04 C
1950
-1.0 C
-2.17 C
1951
-0.7 C
-1.96 C
1952
2.1 C
+0.88 C
1953
2.0 C
+0.74 C
1954
0.5 C
-0.72 C
1955
-0.8 C
-2.03 C
1957
1.4 C
+0.14 C
1958
2.5 C
+1.29 C
1959
1.0 C
-0.24 C
1960
1.9 C
+0.64 C
1961
1.7 C
+0.45 C
1962
1.3 C
+0.12 C
1966
-0.2 C
-1.40 C
1967
1.0 C
-0.25 C
1969
0.0 C
-1.19 C
1970
0.1 C
-1.14 C
1973
0.8 C
-0.46 C
1974
0.6 C
-0.59 C
1975
0.2 C
-0.97 C
The annual mean temperature here has fallen by 0.33 C (0.03 to 0.62) per decade over 1928 to 1975. In Fahrenheit: 0.6 F (0.1 to 1.1) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at High Prairie
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.33 C (-0.62 to -0.03) per decade
-0.6 F (-1.1 to -0.1) per decade
1928 to 1975
36
Fall
Mean daily maximum
-0.6 C (-0.9 to -0.3) per decade
-1.1 F (-1.6 to -0.5) per decade
1928 to 1975
36
Fall
Mean daily minimum
-0.1 C (-0.4 to 0.3) per decade
-0.1 F (-0.7 to 0.5) per decade
1928 to 1975
36
Not clearly different from zero
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 1977
Yearly extremes at High Prairie: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.1 C (97.0 F)
1941
31.1 C (88.0 F)
49
Coldest night (TNn)
-51.2 C (-60.2 F)
1935
-43.9 C (-47.0 F)
49
Wettest day (Rx1day)
61.0 mm (2.4 in)
1956
34.8 mm (1.4 in)
49
Wettest five days (Rx5day)
94.5 mm (3.7 in)
1976
53.6 mm (2.1 in)
49
Longest dry spell (CDD)
45 days
1940
24 days
49
Hottest day (TXx)
The hottest day of the year at High Prairie, 1926 to 1977. The record is 36.1 C (97.0 F) in 1941, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at High Prairie by year
Year
Hottest day (TXx)
1926
23.9 C (75.0 F)
1927
31.7 C (89.1 F)
1928
29.4 C (84.9 F)
1932
34.4 C (93.9 F)
1933
30.6 C (87.1 F)
1934
30.0 C (86.0 F)
1935
33.3 C (91.9 F)
1936
32.2 C (90.0 F)
1937
31.1 C (88.0 F)
1938
31.1 C (88.0 F)
1939
32.2 C (90.0 F)
1940
31.7 C (89.1 F)
1941
36.1 C (97.0 F)
1942
33.3 C (91.9 F)
1943
30.6 C (87.1 F)
1944
32.8 C (91.0 F)
1945
34.4 C (93.9 F)
1946
31.7 C (89.1 F)
1947
31.1 C (88.0 F)
1948
31.7 C (89.1 F)
1949
33.3 C (91.9 F)
1950
33.3 C (91.9 F)
1951
31.1 C (88.0 F)
1952
27.8 C (82.0 F)
1953
29.4 C (84.9 F)
1954
28.3 C (82.9 F)
1955
32.8 C (91.0 F)
1956
29.4 C (84.9 F)
1957
27.2 C (81.0 F)
1958
29.4 C (84.9 F)
1959
31.1 C (88.0 F)
1960
32.2 C (90.0 F)
1961
32.2 C (90.0 F)
1962
32.2 C (90.0 F)
1963
31.1 C (88.0 F)
1964
30.6 C (87.1 F)
1965
29.4 C (84.9 F)
1966
28.9 C (84.0 F)
1967
31.1 C (88.0 F)
1968
28.9 C (84.0 F)
1969
32.2 C (90.0 F)
1970
33.3 C (91.9 F)
1971
30.0 C (86.0 F)
1972
30.6 C (87.1 F)
1973
29.4 C (84.9 F)
1974
27.8 C (82.0 F)
1975
29.4 C (84.9 F)
1976
29.4 C (84.9 F)
1977
29.4 C (84.9 F)
Coldest night (TNn)
The coldest night of the year at High Prairie, 1926 to 1977. The record is -51.2 C (-60.2 F) in 1935, marked on the chart; the median year is -43.9 C (-47.0 F).
Coldest night (TNn) at High Prairie by year
Year
Coldest night (TNn)
1926
-36.7 C (-34.1 F)
1927
-41.1 C (-42.0 F)
1928
-35.0 C (-31.0 F)
1932
-47.2 C (-53.0 F)
1933
-47.8 C (-54.0 F)
1934
-46.7 C (-52.1 F)
1935
-51.2 C (-60.2 F)
1936
-47.8 C (-54.0 F)
1937
-43.9 C (-47.0 F)
1938
-47.8 C (-54.0 F)
1939
-48.3 C (-54.9 F)
1940
-36.1 C (-33.0 F)
1941
-48.9 C (-56.0 F)
1942
-37.2 C (-35.0 F)
1943
-43.9 C (-47.0 F)
1944
-37.8 C (-36.0 F)
1945
-39.4 C (-38.9 F)
1946
-43.9 C (-47.0 F)
1947
-47.2 C (-53.0 F)
1948
-41.7 C (-43.1 F)
1949
-44.4 C (-47.9 F)
1950
-50.0 C (-58.0 F)
1951
-41.7 C (-43.1 F)
1952
-40.0 C (-40.0 F)
1953
-49.4 C (-56.9 F)
1954
-48.9 C (-56.0 F)
1955
-41.7 C (-43.1 F)
1956
-46.7 C (-52.1 F)
1957
-40.0 C (-40.0 F)
1958
-37.8 C (-36.0 F)
1959
-43.9 C (-47.0 F)
1960
-34.4 C (-29.9 F)
1961
-40.0 C (-40.0 F)
1962
-41.7 C (-43.1 F)
1963
-40.6 C (-41.1 F)
1964
-35.0 C (-31.0 F)
1965
-40.0 C (-40.0 F)
1966
-47.2 C (-53.0 F)
1967
-38.9 C (-38.0 F)
1968
-44.4 C (-47.9 F)
1969
-45.6 C (-50.1 F)
1970
-42.8 C (-45.0 F)
1971
-45.6 C (-50.1 F)
1972
-47.8 C (-54.0 F)
1973
-36.7 C (-34.1 F)
1974
-42.8 C (-45.0 F)
1975
-43.9 C (-47.0 F)
1976
-48.3 C (-54.9 F)
1977
-34.4 C (-29.9 F)
Wettest day (Rx1day)
The wettest day of the year at High Prairie, 1926 to 1977. The record is 61.0 mm (2.4 in) in 1956, marked on the chart; the median year is 34.8 mm (1.4 in).
Wettest day (Rx1day) at High Prairie by year
Year
Wettest day (Rx1day)
1926
5.1 mm (0.20 in)
1927
25.4 mm (1.0 in)
1928
49.8 mm (2.0 in)
1932
44.2 mm (1.7 in)
1933
48.5 mm (1.9 in)
1934
44.5 mm (1.8 in)
1935
55.6 mm (2.2 in)
1936
37.6 mm (1.5 in)
1937
47.5 mm (1.9 in)
1938
14.7 mm (0.6 in)
1939
37.3 mm (1.5 in)
1940
16.3 mm (0.6 in)
1941
46.5 mm (1.8 in)
1942
34.8 mm (1.4 in)
1943
31.2 mm (1.2 in)
1944
21.1 mm (0.8 in)
1945
21.6 mm (0.9 in)
1946
40.1 mm (1.6 in)
1947
35.6 mm (1.4 in)
1948
21.1 mm (0.8 in)
1949
38.6 mm (1.5 in)
1950
34.0 mm (1.3 in)
1951
26.7 mm (1.1 in)
1952
51.8 mm (2.0 in)
1953
45.7 mm (1.8 in)
1954
38.4 mm (1.5 in)
1955
34.8 mm (1.4 in)
1956
61.0 mm (2.4 in)
1957
42.7 mm (1.7 in)
1958
18.5 mm (0.7 in)
1959
14.0 mm (0.6 in)
1960
42.7 mm (1.7 in)
1961
22.9 mm (0.9 in)
1962
14.7 mm (0.6 in)
1963
16.5 mm (0.6 in)
1964
6.4 mm (0.25 in)
1965
35.1 mm (1.4 in)
1966
22.1 mm (0.9 in)
1967
15.0 mm (0.6 in)
1968
50.8 mm (2.0 in)
1969
38.1 mm (1.5 in)
1970
24.6 mm (1.0 in)
1971
35.8 mm (1.4 in)
1972
26.2 mm (1.0 in)
1973
40.9 mm (1.6 in)
1974
33.0 mm (1.3 in)
1975
31.8 mm (1.3 in)
1976
40.9 mm (1.6 in)
1977
17.8 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at High Prairie, 1926 to 1977. The record is 94.5 mm (3.7 in) in 1976, marked on the chart; the median year is 53.6 mm (2.1 in).
Wettest five days (Rx5day) at High Prairie by year
Year
Wettest five days (Rx5day)
1926
7.6 mm (0.30 in)
1927
25.4 mm (1.0 in)
1928
82.3 mm (3.2 in)
1932
53.6 mm (2.1 in)
1933
56.9 mm (2.2 in)
1934
69.4 mm (2.7 in)
1935
71.2 mm (2.8 in)
1936
73.3 mm (2.9 in)
1937
73.9 mm (2.9 in)
1938
27.2 mm (1.1 in)
1939
46.7 mm (1.8 in)
1940
25.4 mm (1.0 in)
1941
72.8 mm (2.9 in)
1942
78.2 mm (3.1 in)
1943
43.4 mm (1.7 in)
1944
37.7 mm (1.5 in)
1945
32.0 mm (1.3 in)
1946
42.7 mm (1.7 in)
1947
46.5 mm (1.8 in)
1948
25.9 mm (1.0 in)
1949
52.1 mm (2.1 in)
1950
70.9 mm (2.8 in)
1951
72.6 mm (2.9 in)
1952
58.2 mm (2.3 in)
1953
72.9 mm (2.9 in)
1954
57.4 mm (2.3 in)
1955
54.1 mm (2.1 in)
1956
82.9 mm (3.3 in)
1957
74.0 mm (2.9 in)
1958
21.1 mm (0.8 in)
1959
21.4 mm (0.8 in)
1960
79.3 mm (3.1 in)
1961
35.3 mm (1.4 in)
1962
29.1 mm (1.1 in)
1963
30.3 mm (1.2 in)
1964
10.2 mm (0.4 in)
1965
55.7 mm (2.2 in)
1966
44.0 mm (1.7 in)
1967
22.7 mm (0.9 in)
1968
61.5 mm (2.4 in)
1969
88.6 mm (3.5 in)
1970
42.7 mm (1.7 in)
1971
75.2 mm (3.0 in)
1972
37.1 mm (1.5 in)
1973
52.3 mm (2.1 in)
1974
58.5 mm (2.3 in)
1975
90.2 mm (3.6 in)
1976
94.5 mm (3.7 in)
1977
17.8 mm (0.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at High Prairie, 1926 to 1977. The record is 45 days in 1940, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at High Prairie by year
Year
Longest dry spell (CDD)
1926
21 days
1927
20 days
1928
23 days
1932
23 days
1933
23 days
1934
26 days
1935
24 days
1936
24 days
1937
24 days
1938
29 days
1939
21 days
1940
45 days
1941
19 days
1942
31 days
1943
33 days
1944
35 days
1945
35 days
1946
28 days
1947
21 days
1948
16 days
1949
20 days
1950
35 days
1951
24 days
1952
38 days
1953
29 days
1954
26 days
1955
21 days
1956
23 days
1957
16 days
1958
22 days
1959
31 days
1960
24 days
1961
16 days
1962
19 days
1963
22 days
1964
6 days
1965
30 days
1966
27 days
1967
32 days
1968
27 days
1969
29 days
1970
25 days
1971
15 days
1972
26 days
1973
44 days
1974
20 days
1975
17 days
1976
28 days
1977
34 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
36 years with a frost
Across 36 years with a frost, the median last spring frost at High Prairie falls on 3 June and the median first autumn frost on 28 August, which leaves a median of 86 days between them.
Fitted over all years, the growing season changes by +4.4 days per decade at this station.
Frost dates and growing season at High Prairie
Measure
Median, all years
Earliest period
Recent period (1938 to 1975)
Recent against earliest
Fitted trend
Last spring frost
3 June
n/a
1 June
n/a
-1.3 days per decade
First autumn frost
28 August
n/a
28 August
n/a
+3.1 days per decade
Growing days
86 days
n/a
89 days
n/a
+4.4 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, 1932 to 1973
A day with at least 36.0 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 61.3 mm (2.4 in) of rain is expected about once in 100 years.
Rainfall return levels at High Prairie: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
36.0 mm (1.4 in)
5 years
46.9 mm (1.8 in)
10 years
52.0 mm (2.0 in)
25 years
56.7 mm (2.2 in)
50 years
59.3 mm (2.3 in)
Longer than the 34 years of record
100 years
61.3 mm (2.4 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 1932 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: 61.0 mm (2.4 in) in 1956; 55.6 mm (2.2 in) in 1935; 51.8 mm (2.0 in) in 1952.
Download the Data
Data for High Prairie standing records by year: CSV or JSON. Field meanings are on the data page.
Data for High Prairie 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.