Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Clyde A. 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 Clyde A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
3.3 C (37.9 F)
-45.6 C (-50.1 F)
n/a
n/a
Feb
3.3 C (37.9 F)
-46.8 C (-52.2 F)
n/a
n/a
Mar
-1.9 C (28.6 F)
-43.3 C (-45.9 F)
n/a
n/a
Apr
11.7 C (53.1 F)
-41.1 C (-42.0 F)
n/a
n/a
May
8.9 C (48.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Jun
17.8 C (64.0 F)
-17.2 C (1.0 F)
n/a
n/a
Jul
22.2 C (72.0 F)
-5.6 C (21.9 F)
n/a
n/a
Aug
20.0 C (68.0 F)
-5.6 C (21.9 F)
n/a
n/a
Sep
13.3 C (55.9 F)
-16.1 C (3.0 F)
n/a
n/a
Oct
6.1 C (43.0 F)
-26.5 C (-15.7 F)
n/a
n/a
Nov
6.7 C (44.1 F)
-35.0 C (-31.0 F)
n/a
n/a
Dec
2.8 C (37.0 F)
-43.9 C (-47.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Clyde A still stand. 1953 holds the most, with 66.
Standing records at Clyde A by the year they were set
Year set
Standing records
1933
25
1942
3
1943
18
1946
40
1947
40
1948
58
1949
48
1950
45
1951
36
1952
44
1953
66
1954
30
1955
61
1956
35
1957
34
1958
43
1959
28
1960
28
1961
58
1962
19
1963
50
1964
28
1965
37
1966
35
1967
32
1968
39
1969
34
1970
34
1971
20
1972
30
1973
21
1974
14
1975
41
1976
18
1977
34
1978
60
1979
60
1980
49
1981
18
1982
25
1983
26
All-Time Record Progression
3 new records
3 all-time records were set at Clyde A between 7 April 1977 and 17 February 1979. Each dot is a new record.
When Clyde A set new all-time records
Date
Kind
Detail
1977-04-07
Record daily snowfall
Record daily snowfall 41.0 cm (16.1 in)
1979-02-16
Record low maximum temperature
Record low maximum temperature -42.3 C (-44.1 F)
1979-02-17
Record low minimum temperature
Record low minimum temperature -46.8 C (-52.2 F)
Wettest Day of Each Month
Aug: 37.3 mm (1.5 in)
The wettest day on record for each calendar month at Clyde A. The most was 37.3 mm (1.5 in) on 20 August 1960.
Record daily precipitation for each month at Clyde A
Month
Record daily precipitation (mm)
Date
Jan
23.1 mm (0.9 in)
8 January 1963
Feb
10.4 mm (0.4 in)
13 February 1960
Mar
8.2 mm (0.32 in)
4 March 1980
Apr
13.0 mm (0.5 in)
5 April 1954
May
23.7 mm (0.9 in)
1 May 1977
Jun
23.7 mm (0.9 in)
4 June 1982
Jul
32.5 mm (1.3 in)
7 July 1952
Aug
37.3 mm (1.5 in)
20 August 1960
Sep
36.8 mm (1.4 in)
5 September 1952
Oct
26.9 mm (1.1 in)
27 October 1971
Nov
27.4 mm (1.1 in)
2 November 1950
Dec
19.3 mm (0.8 in)
1 December 1975
Period of Record Coverage
1933 to 1983
Complete yearUnder 90 percent of days
41 years of record at Clyde A, 1933 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1933, 1942, 1943, 1954.
Cooler than the station meanWarmer than the station mean
One stripe for each of 33 complete years at Clyde A, 1949 to 1983. Blue stripes are years cooler than the station's own mean of -12.2 C (10.0 F); red stripes are warmer. The coolest year was 1972, at -14.4 C (6.0 F), and the warmest was 1980, at -10.4 C (13.2 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Clyde A as warming stripes, 1949 to 1983
Year
Annual mean temperature
Difference from the station mean
1949
-12.4 C
-0.17 C
1950
-12.1 C
+0.17 C
1951
-12.4 C
-0.17 C
1952
-11.6 C
+0.62 C
1953
-12.8 C
-0.55 C
1955
-11.1 C
+1.14 C
1956
-12.8 C
-0.62 C
1957
-12.7 C
-0.50 C
1958
-12.7 C
-0.51 C
1960
-11.0 C
+1.20 C
1961
-14.1 C
-1.91 C
1962
-11.4 C
+0.79 C
1963
-11.3 C
+0.94 C
1964
-12.6 C
-0.40 C
1965
-11.9 C
+0.33 C
1966
-11.7 C
+0.51 C
1967
-11.9 C
+0.33 C
1968
-11.7 C
+0.51 C
1969
-10.8 C
+1.46 C
1970
-12.3 C
-0.06 C
1971
-12.6 C
-0.35 C
1972
-14.4 C
-2.21 C
1973
-11.8 C
+0.40 C
1974
-12.8 C
-0.59 C
1975
-12.2 C
+0.02 C
1976
-12.2 C
-0.01 C
1977
-11.5 C
+0.75 C
1978
-13.4 C
-1.19 C
1979
-12.8 C
-0.58 C
1980
-10.4 C
+1.79 C
1981
-11.0 C
+1.24 C
1982
-12.6 C
-0.41 C
1983
-14.2 C
-1.99 C
The fitted trend in annual mean temperature here over 1949 to 1983 is -0.1 C (-0.4 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.7 to 0.5) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Clyde A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.4 to 0.3) per decade
-0.1 F (-0.7 to 0.5) per decade
1949 to 1983
33
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.5 to 0.2) per decade
-0.3 F (-0.9 to 0.4) per decade
1949 to 1983
33
Not clearly different from zero
Mean daily minimum
0.03 C (-0.31 to 0.38) per decade
0.1 F (-0.6 to 0.7) per decade
1949 to 1983
33
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
1933 to 1983
Yearly extremes at Clyde A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
22.2 C (72.0 F)
1969
17.2 C (63.0 F)
41
Coldest night (TNn)
-46.8 C (-52.2 F)
1979
-42.8 C (-45.0 F)
41
Wettest day (Rx1day)
37.3 mm (1.5 in)
1960
15.2 mm (0.6 in)
41
Wettest five days (Rx5day)
89.2 mm (3.5 in)
1960
26.0 mm (1.0 in)
41
Longest dry spell (CDD)
107 days
1943
55 days
41
Hottest day (TXx)
The hottest day of the year at Clyde A, 1933 to 1983. The record is 22.2 C (72.0 F) in 1969, marked on the chart; the median year is 17.2 C (63.0 F).
Hottest day (TXx) at Clyde A by year
Year
Hottest day (TXx)
1933
10.0 C (50.0 F)
1942
-7.2 C (19.0 F)
1943
18.3 C (64.9 F)
1946
14.4 C (57.9 F)
1947
13.9 C (57.0 F)
1948
21.7 C (71.1 F)
1949
19.4 C (66.9 F)
1950
20.6 C (69.1 F)
1951
15.6 C (60.1 F)
1952
17.8 C (64.0 F)
1953
17.8 C (64.0 F)
1954
15.0 C (59.0 F)
1955
20.0 C (68.0 F)
1956
18.3 C (64.9 F)
1957
19.4 C (66.9 F)
1958
19.4 C (66.9 F)
1959
12.8 C (55.0 F)
1960
21.1 C (70.0 F)
1961
18.9 C (66.0 F)
1962
17.2 C (63.0 F)
1963
16.7 C (62.1 F)
1964
13.9 C (57.0 F)
1965
13.3 C (55.9 F)
1966
18.3 C (64.9 F)
1967
17.8 C (64.0 F)
1968
9.4 C (48.9 F)
1969
22.2 C (72.0 F)
1970
10.6 C (51.1 F)
1971
19.4 C (66.9 F)
1972
14.4 C (57.9 F)
1973
17.8 C (64.0 F)
1974
17.8 C (64.0 F)
1975
19.4 C (66.9 F)
1976
16.1 C (61.0 F)
1977
14.4 C (57.9 F)
1978
11.0 C (51.8 F)
1979
11.9 C (53.4 F)
1980
15.7 C (60.3 F)
1981
15.4 C (59.7 F)
1982
19.5 C (67.1 F)
1983
14.7 C (58.5 F)
Coldest night (TNn)
The coldest night of the year at Clyde A, 1933 to 1983. The record is -46.8 C (-52.2 F) in 1979, marked on the chart; the median year is -42.8 C (-45.0 F).
Coldest night (TNn) at Clyde A by year
Year
Coldest night (TNn)
1933
-38.3 C (-36.9 F)
1942
-35.0 C (-31.0 F)
1943
-42.8 C (-45.0 F)
1946
-40.0 C (-40.0 F)
1947
-40.6 C (-41.1 F)
1948
-41.1 C (-42.0 F)
1949
-43.9 C (-47.0 F)
1950
-41.1 C (-42.0 F)
1951
-43.3 C (-45.9 F)
1952
-44.4 C (-47.9 F)
1953
-43.9 C (-47.0 F)
1954
-44.4 C (-47.9 F)
1955
-42.2 C (-44.0 F)
1956
-42.8 C (-45.0 F)
1957
-43.3 C (-45.9 F)
1958
-41.7 C (-43.1 F)
1959
-43.9 C (-47.0 F)
1960
-41.1 C (-42.0 F)
1961
-45.6 C (-50.1 F)
1962
-42.2 C (-44.0 F)
1963
-45.6 C (-50.1 F)
1964
-43.3 C (-45.9 F)
1965
-44.4 C (-47.9 F)
1966
-42.8 C (-45.0 F)
1967
-42.8 C (-45.0 F)
1968
-41.1 C (-42.0 F)
1969
-42.8 C (-45.0 F)
1970
-42.8 C (-45.0 F)
1971
-42.8 C (-45.0 F)
1972
-42.8 C (-45.0 F)
1973
-41.7 C (-43.1 F)
1974
-38.3 C (-36.9 F)
1975
-38.9 C (-38.0 F)
1976
-40.0 C (-40.0 F)
1977
-40.7 C (-41.3 F)
1978
-40.4 C (-40.7 F)
1979
-46.8 C (-52.2 F)
1980
-41.1 C (-42.0 F)
1981
-38.7 C (-37.7 F)
1982
-43.8 C (-46.8 F)
1983
-42.0 C (-43.6 F)
Wettest day (Rx1day)
The wettest day of the year at Clyde A, 1933 to 1983. The record is 37.3 mm (1.5 in) in 1960, marked on the chart; the median year is 15.2 mm (0.6 in).
Wettest day (Rx1day) at Clyde A by year
Year
Wettest day (Rx1day)
1933
5.1 mm (0.20 in)
1942
5.1 mm (0.20 in)
1943
16.5 mm (0.6 in)
1946
32.0 mm (1.3 in)
1947
19.6 mm (0.8 in)
1948
14.0 mm (0.6 in)
1949
13.5 mm (0.5 in)
1950
27.4 mm (1.1 in)
1951
35.6 mm (1.4 in)
1952
36.8 mm (1.4 in)
1953
15.2 mm (0.6 in)
1954
13.0 mm (0.5 in)
1955
13.2 mm (0.5 in)
1956
8.1 mm (0.32 in)
1957
9.4 mm (0.37 in)
1958
9.4 mm (0.37 in)
1959
10.9 mm (0.4 in)
1960
37.3 mm (1.5 in)
1961
20.1 mm (0.8 in)
1962
13.5 mm (0.5 in)
1963
23.1 mm (0.9 in)
1964
9.4 mm (0.37 in)
1965
19.8 mm (0.8 in)
1966
8.9 mm (0.35 in)
1967
9.9 mm (0.39 in)
1968
31.2 mm (1.2 in)
1969
14.5 mm (0.6 in)
1970
18.5 mm (0.7 in)
1971
26.9 mm (1.1 in)
1972
6.1 mm (0.24 in)
1973
11.9 mm (0.5 in)
1974
14.7 mm (0.6 in)
1975
19.3 mm (0.8 in)
1976
11.2 mm (0.4 in)
1977
23.7 mm (0.9 in)
1978
19.6 mm (0.8 in)
1979
20.4 mm (0.8 in)
1980
11.6 mm (0.5 in)
1981
18.4 mm (0.7 in)
1982
23.7 mm (0.9 in)
1983
17.4 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Clyde A, 1933 to 1983. The record is 89.2 mm (3.5 in) in 1960, marked on the chart; the median year is 26.0 mm (1.0 in).
Wettest five days (Rx5day) at Clyde A by year
Year
Wettest five days (Rx5day)
1933
5.1 mm (0.20 in)
1942
7.1 mm (0.28 in)
1943
29.5 mm (1.2 in)
1946
61.7 mm (2.4 in)
1947
30.7 mm (1.2 in)
1948
34.6 mm (1.4 in)
1949
23.1 mm (0.9 in)
1950
37.8 mm (1.5 in)
1951
43.7 mm (1.7 in)
1952
48.5 mm (1.9 in)
1953
38.1 mm (1.5 in)
1954
19.6 mm (0.8 in)
1955
28.0 mm (1.1 in)
1956
18.5 mm (0.7 in)
1957
15.0 mm (0.6 in)
1958
10.2 mm (0.4 in)
1959
23.6 mm (0.9 in)
1960
89.2 mm (3.5 in)
1961
43.2 mm (1.7 in)
1962
24.2 mm (1.0 in)
1963
26.0 mm (1.0 in)
1964
21.0 mm (0.8 in)
1965
33.8 mm (1.3 in)
1966
16.3 mm (0.6 in)
1967
10.9 mm (0.4 in)
1968
40.8 mm (1.6 in)
1969
18.5 mm (0.7 in)
1970
29.7 mm (1.2 in)
1971
34.3 mm (1.4 in)
1972
16.2 mm (0.6 in)
1973
14.2 mm (0.6 in)
1974
17.0 mm (0.7 in)
1975
21.1 mm (0.8 in)
1976
19.3 mm (0.8 in)
1977
45.0 mm (1.8 in)
1978
30.8 mm (1.2 in)
1979
44.0 mm (1.7 in)
1980
21.4 mm (0.8 in)
1981
31.0 mm (1.2 in)
1982
29.7 mm (1.2 in)
1983
25.0 mm (1.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Clyde A, 1933 to 1983. The record is 107 days in 1943, marked on the chart; the median year is 55 days.
Longest dry spell (CDD) at Clyde A by year
Year
Longest dry spell (CDD)
1933
21 days
1942
28 days
1943
107 days
1946
70 days
1947
48 days
1948
63 days
1949
32 days
1950
24 days
1951
30 days
1952
38 days
1953
96 days
1954
60 days
1955
63 days
1956
97 days
1957
58 days
1958
70 days
1959
69 days
1960
86 days
1961
57 days
1962
55 days
1963
83 days
1964
107 days
1965
35 days
1966
61 days
1967
60 days
1968
37 days
1969
75 days
1970
52 days
1971
53 days
1972
57 days
1973
41 days
1974
62 days
1975
69 days
1976
42 days
1977
39 days
1978
46 days
1979
28 days
1980
33 days
1981
29 days
1982
30 days
1983
29 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
33 years with a frost
Across 33 years with a frost, the median last spring frost at Clyde A falls on 30 June and the median first autumn frost on 1 July, which leaves a median of 2 days between them.
Fitted over all years, the growing season changes by +0.4 days per decade at this station.
Frost dates and growing season at Clyde A
Measure
Median, all years
Earliest period
Recent period (1952 to 1983)
Recent against earliest
Fitted trend
Last spring frost
30 June
n/a
30 June
n/a
-0.3 days per decade
First autumn frost
1 July
n/a
1 July
n/a
+0.1 days per decade
Growing days
2 days
n/a
2 days
n/a
+0.4 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
37 years, 1946 to 1983
A day with at least 16.6 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 47.7 mm (1.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Clyde A: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
16.6 mm (0.7 in)
5 years
24.4 mm (1.0 in)
10 years
29.7 mm (1.2 in)
25 years
36.7 mm (1.4 in)
50 years
42.2 mm (1.7 in)
Longer than the 37 years of record
100 years
47.7 mm (1.9 in)
Longer than the 37 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, 37 years of values from 1946 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: 37.3 mm (1.5 in) in 1960; 36.8 mm (1.4 in) in 1952; 35.6 mm (1.4 in) in 1951.
Download the Data
Data for Clyde A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Clyde A 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.