Record envelope, standing records and threshold days for Charlottetown A (CA008300300), Prince Edward Island, Canada, with 83 years of record.
Key Facts for Charlottetown A
Charlottetown A (CA008300300) is a weather station in Prince Edward Island, Canada at 46.28 latitude and -63.13 longitude, 49 m (161 ft) above sea level.
The station reports from 1943 to 2025, 83 years of record.
1,464 records set at Charlottetown A still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Charlottetown A set a daily record high maximum temperature of 11.7 C (53.1 F) on 15 December 1983.
About the Station
Location: Prince Edward Island, Canada, 46.28 latitude, -63.13 longitude.
Elevation: 49 m (161 ft).
Period of record: 1943 to 2025, 83 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 Charlottetown 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 Charlottetown A, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
11.7 C (53.1 F)
-30.5 C (-22.9 F)
n/a
n/a
Feb
13.3 C (55.9 F)
-27.8 C (-18.0 F)
n/a
n/a
Mar
16.1 C (61.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Apr
22.9 C (73.2 F)
-12.2 C (10.0 F)
n/a
n/a
May
31.2 C (88.2 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
32.2 C (90.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
33.9 C (93.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
34.4 C (93.9 F)
4.4 C (39.9 F)
n/a
n/a
Sep
29.4 C (84.9 F)
-0.6 C (30.9 F)
n/a
n/a
Oct
23.3 C (73.9 F)
-6.7 C (19.9 F)
n/a
n/a
Nov
21.3 C (70.3 F)
-14.9 C (5.2 F)
n/a
n/a
Dec
16.7 C (62.1 F)
-28.1 C (-18.6 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Charlottetown A still stand. 1972 holds the most, with 79.
Standing records at Charlottetown A by the year they were set
Year set
Standing records
1943
32
1944
54
1945
28
1946
39
1947
51
1948
34
1949
32
1950
48
1951
41
1952
15
1953
38
1954
41
1955
17
1956
33
1957
35
1958
29
1959
30
1960
25
1961
31
1962
32
1963
31
1964
28
1965
41
1966
27
1967
47
1968
38
1969
36
1970
25
1971
36
1972
79
1973
33
1974
34
1975
33
1976
41
1977
26
1978
32
1979
54
1980
27
1981
46
1982
36
1983
29
All-Time Record Progression
4 new records
4 all-time records were set at Charlottetown A between 26 December 1980 and 18 January 1982. Each dot is a new record.
When Charlottetown A set new all-time records
Date
Kind
Detail
1980-12-26
Record low minimum temperature
Record low minimum temperature -28.1 C (-18.6 F)
1981-01-04
Record low minimum temperature
Record low minimum temperature -28.6 C (-19.5 F)
1981-01-05
Record low minimum temperature
Record low minimum temperature -29.5 C (-21.1 F)
1982-01-18
Record low minimum temperature
Record low minimum temperature -30.5 C (-22.9 F)
Wettest Day of Each Month
Oct: 106.4 mm (4.2 in)
The wettest day on record for each calendar month at Charlottetown A. The most was 106.4 mm (4.2 in) on 10 October 1967.
Record daily precipitation for each month at Charlottetown A
Month
Record daily precipitation (mm)
Date
Jan
74.4 mm (2.9 in)
26 January 1978
Feb
53.1 mm (2.1 in)
8 February 1953
Mar
44.2 mm (1.7 in)
12 March 1968
Apr
58.7 mm (2.3 in)
1 April 1962
May
59.7 mm (2.4 in)
25 May 1983
Jun
53.3 mm (2.1 in)
3 June 1947
Jul
70.0 mm (2.8 in)
17 July 1979
Aug
76.7 mm (3.0 in)
21 August 1950
Sep
56.1 mm (2.2 in)
12 September 1962
Oct
106.4 mm (4.2 in)
10 October 1967
Nov
52.3 mm (2.1 in)
26 November 1974
Dec
57.2 mm (2.3 in)
22 December 1975
Period of Record Coverage
1943 to 1983
Complete yearUnder 90 percent of days
41 years of record at Charlottetown A, 1943 to 1983. 2 years have data for under 90 percent of days and are left out of rankings: 1943, 1945.
Cooler than the station meanWarmer than the station mean
One stripe for each of 37 complete years at Charlottetown A, 1944 to 1983. Blue stripes are years cooler than the station's own mean of 5.4 C (41.7 F); red stripes are warmer. The coolest year was 1972, at 4.1 C (39.3 F), and the warmest was 1953, at 6.7 C (44.1 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Charlottetown A as warming stripes, 1944 to 1983
Year
Annual mean temperature
Difference from the station mean
1944
5.9 C
+0.49 C
1946
5.7 C
+0.30 C
1947
6.0 C
+0.59 C
1948
5.1 C
-0.33 C
1949
6.3 C
+0.84 C
1950
5.4 C
-0.01 C
1952
6.1 C
+0.69 C
1953
6.7 C
+1.32 C
1954
6.0 C
+0.54 C
1955
5.4 C
-0.01 C
1956
5.1 C
-0.28 C
1957
5.5 C
+0.08 C
1958
5.6 C
+0.22 C
1959
5.4 C
+0.01 C
1960
6.2 C
+0.76 C
1961
5.3 C
-0.08 C
1962
4.5 C
-0.88 C
1963
4.8 C
-0.63 C
1964
4.7 C
-0.67 C
1965
4.4 C
-1.00 C
1966
6.2 C
+0.82 C
1967
4.9 C
-0.54 C
1968
4.9 C
-0.47 C
1969
6.1 C
+0.73 C
1970
5.1 C
-0.31 C
1971
5.3 C
-0.16 C
1972
4.1 C
-1.33 C
1973
5.7 C
+0.24 C
1974
4.7 C
-0.76 C
1975
5.2 C
-0.17 C
1976
5.2 C
-0.18 C
1977
5.4 C
+0.01 C
1978
4.7 C
-0.74 C
1980
4.6 C
-0.78 C
1981
6.5 C
+1.09 C
1982
5.1 C
-0.36 C
1983
6.4 C
+1.03 C
The fitted trend in annual mean temperature here over 1944 to 1983 is -0.16 C (-0.35 to 0.03) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.3 F (-0.6 to 0.1) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Charlottetown A
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.16 C (-0.35 to 0.03) per decade
-0.3 F (-0.6 to 0.1) per decade
1944 to 1983
37
Not clearly different from zero
Mean daily maximum
-0.03 C (-0.20 to 0.15) per decade
-0.05 F (-0.36 to 0.26) per decade
1944 to 1983
37
Not clearly different from zero
Mean daily minimum
-0.3 C (-0.5 to -0.1) per decade
-0.5 F (-0.9 to -0.1) per decade
1944 to 1983
37
Fall
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
1943 to 1983
Yearly extremes at Charlottetown A: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
34.4 C (93.9 F)
1944
29.9 C (85.8 F)
41
Coldest night (TNn)
-30.5 C (-22.9 F)
1982
-24.4 C (-11.9 F)
41
Wettest day (Rx1day)
106.4 mm (4.2 in)
1967
50.0 mm (2.0 in)
41
Wettest five days (Rx5day)
133.3 mm (5.2 in)
1967
73.7 mm (2.9 in)
41
Longest dry spell (CDD)
23 days
1975
13 days
41
Hottest day (TXx)
The hottest day of the year at Charlottetown A, 1943 to 1983. The record is 34.4 C (93.9 F) in 1944, marked on the chart; the median year is 29.9 C (85.8 F).
Hottest day (TXx) at Charlottetown A by year
Year
Hottest day (TXx)
1943
30.6 C (87.1 F)
1944
34.4 C (93.9 F)
1945
30.6 C (87.1 F)
1946
29.4 C (84.9 F)
1947
33.3 C (91.9 F)
1948
29.4 C (84.9 F)
1949
32.8 C (91.0 F)
1950
29.4 C (84.9 F)
1951
27.8 C (82.0 F)
1952
31.1 C (88.0 F)
1953
27.8 C (82.0 F)
1954
27.2 C (81.0 F)
1955
30.0 C (86.0 F)
1956
27.2 C (81.0 F)
1957
28.9 C (84.0 F)
1958
27.8 C (82.0 F)
1959
30.0 C (86.0 F)
1960
33.9 C (93.0 F)
1961
28.9 C (84.0 F)
1962
29.4 C (84.9 F)
1963
30.6 C (87.1 F)
1964
27.8 C (82.0 F)
1965
29.4 C (84.9 F)
1966
28.3 C (82.9 F)
1967
29.4 C (84.9 F)
1968
28.9 C (84.0 F)
1969
28.3 C (82.9 F)
1970
31.7 C (89.1 F)
1971
29.4 C (84.9 F)
1972
30.0 C (86.0 F)
1973
30.0 C (86.0 F)
1974
30.6 C (87.1 F)
1975
33.9 C (93.0 F)
1976
32.2 C (90.0 F)
1977
31.2 C (88.2 F)
1978
29.9 C (85.8 F)
1979
29.8 C (85.6 F)
1980
30.1 C (86.2 F)
1981
28.3 C (82.9 F)
1982
30.6 C (87.1 F)
1983
30.1 C (86.2 F)
Coldest night (TNn)
The coldest night of the year at Charlottetown A, 1943 to 1983. The record is -30.5 C (-22.9 F) in 1982, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Charlottetown A by year
Year
Coldest night (TNn)
1943
-23.3 C (-9.9 F)
1944
-21.1 C (-6.0 F)
1945
-20.6 C (-5.1 F)
1946
-26.1 C (-15.0 F)
1947
-21.7 C (-7.1 F)
1948
-26.1 C (-15.0 F)
1949
-20.0 C (-4.0 F)
1950
-25.0 C (-13.0 F)
1951
-26.1 C (-15.0 F)
1952
-21.1 C (-6.0 F)
1953
-18.9 C (-2.0 F)
1954
-24.4 C (-11.9 F)
1955
-27.2 C (-17.0 F)
1956
-22.2 C (-8.0 F)
1957
-27.8 C (-18.0 F)
1958
-21.1 C (-6.0 F)
1959
-23.9 C (-11.0 F)
1960
-23.9 C (-11.0 F)
1961
-26.7 C (-16.1 F)
1962
-25.6 C (-14.1 F)
1963
-22.8 C (-9.0 F)
1964
-21.1 C (-6.0 F)
1965
-25.0 C (-13.0 F)
1966
-26.7 C (-16.1 F)
1967
-26.7 C (-16.1 F)
1968
-25.6 C (-14.1 F)
1969
-20.6 C (-5.1 F)
1970
-23.3 C (-9.9 F)
1971
-27.8 C (-18.0 F)
1972
-25.6 C (-14.1 F)
1973
-24.4 C (-11.9 F)
1974
-26.7 C (-16.1 F)
1975
-24.4 C (-11.9 F)
1976
-25.0 C (-13.0 F)
1977
-22.0 C (-7.6 F)
1978
-23.9 C (-11.0 F)
1979
-23.9 C (-11.0 F)
1980
-28.1 C (-18.6 F)
1981
-29.5 C (-21.1 F)
1982
-30.5 C (-22.9 F)
1983
-20.4 C (-4.7 F)
Wettest day (Rx1day)
The wettest day of the year at Charlottetown A, 1943 to 1983. The record is 106.4 mm (4.2 in) in 1967, marked on the chart; the median year is 50.0 mm (2.0 in).
Wettest day (Rx1day) at Charlottetown A by year
Year
Wettest day (Rx1day)
1943
53.3 mm (2.1 in)
1944
51.1 mm (2.0 in)
1945
43.9 mm (1.7 in)
1946
44.2 mm (1.7 in)
1947
53.3 mm (2.1 in)
1948
44.2 mm (1.7 in)
1949
50.0 mm (2.0 in)
1950
76.7 mm (3.0 in)
1951
64.8 mm (2.6 in)
1952
59.4 mm (2.3 in)
1953
63.5 mm (2.5 in)
1954
36.3 mm (1.4 in)
1955
44.2 mm (1.7 in)
1956
64.0 mm (2.5 in)
1957
35.1 mm (1.4 in)
1958
48.8 mm (1.9 in)
1959
47.8 mm (1.9 in)
1960
34.8 mm (1.4 in)
1961
38.1 mm (1.5 in)
1962
58.7 mm (2.3 in)
1963
46.7 mm (1.8 in)
1964
38.4 mm (1.5 in)
1965
27.2 mm (1.1 in)
1966
47.2 mm (1.9 in)
1967
106.4 mm (4.2 in)
1968
49.8 mm (2.0 in)
1969
35.3 mm (1.4 in)
1970
54.9 mm (2.2 in)
1971
41.9 mm (1.6 in)
1972
45.2 mm (1.8 in)
1973
41.4 mm (1.6 in)
1974
52.3 mm (2.1 in)
1975
57.2 mm (2.3 in)
1976
49.8 mm (2.0 in)
1977
52.0 mm (2.0 in)
1978
74.4 mm (2.9 in)
1979
70.0 mm (2.8 in)
1980
52.4 mm (2.1 in)
1981
54.3 mm (2.1 in)
1982
54.6 mm (2.1 in)
1983
59.7 mm (2.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Charlottetown A, 1943 to 1983. The record is 133.3 mm (5.2 in) in 1967, marked on the chart; the median year is 73.7 mm (2.9 in).
Wettest five days (Rx5day) at Charlottetown A by year
Year
Wettest five days (Rx5day)
1943
64.8 mm (2.6 in)
1944
66.6 mm (2.6 in)
1945
77.2 mm (3.0 in)
1946
62.8 mm (2.5 in)
1947
88.8 mm (3.5 in)
1948
63.0 mm (2.5 in)
1949
101.6 mm (4.0 in)
1950
121.2 mm (4.8 in)
1951
92.3 mm (3.6 in)
1952
62.2 mm (2.4 in)
1953
81.8 mm (3.2 in)
1954
66.3 mm (2.6 in)
1955
80.5 mm (3.2 in)
1956
95.3 mm (3.8 in)
1957
82.9 mm (3.3 in)
1958
78.3 mm (3.1 in)
1959
82.3 mm (3.2 in)
1960
56.0 mm (2.2 in)
1961
67.5 mm (2.7 in)
1962
72.3 mm (2.8 in)
1963
67.6 mm (2.7 in)
1964
72.4 mm (2.9 in)
1965
69.4 mm (2.7 in)
1966
63.2 mm (2.5 in)
1967
133.3 mm (5.2 in)
1968
74.2 mm (2.9 in)
1969
64.1 mm (2.5 in)
1970
71.8 mm (2.8 in)
1971
100.1 mm (3.9 in)
1972
76.7 mm (3.0 in)
1973
73.7 mm (2.9 in)
1974
65.5 mm (2.6 in)
1975
80.8 mm (3.2 in)
1976
71.8 mm (2.8 in)
1977
67.8 mm (2.7 in)
1978
101.6 mm (4.0 in)
1979
86.9 mm (3.4 in)
1980
68.7 mm (2.7 in)
1981
122.1 mm (4.8 in)
1982
92.2 mm (3.6 in)
1983
69.3 mm (2.7 in)
Longest dry spell (CDD)
The longest dry spell of the year at Charlottetown A, 1943 to 1983. The record is 23 days in 1975, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Charlottetown A by year
Year
Longest dry spell (CDD)
1943
8 days
1944
17 days
1945
13 days
1946
22 days
1947
21 days
1948
15 days
1949
12 days
1950
17 days
1951
11 days
1952
13 days
1953
10 days
1954
11 days
1955
10 days
1956
15 days
1957
10 days
1958
10 days
1959
9 days
1960
17 days
1961
19 days
1962
13 days
1963
15 days
1964
11 days
1965
15 days
1966
12 days
1967
13 days
1968
18 days
1969
17 days
1970
12 days
1971
11 days
1972
11 days
1973
11 days
1974
14 days
1975
23 days
1976
12 days
1977
19 days
1978
12 days
1979
15 days
1980
15 days
1981
14 days
1982
12 days
1983
10 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
37 years with a frost
Across 37 years with a frost, the median last spring frost at Charlottetown A falls on 18 May and the median first autumn frost on 18 October, which leaves a median of 155 days between them.
Fitted over all years, the growing season changes by -0.6 days per decade at this station.
Frost dates and growing season at Charlottetown A
Measure
Median, all years
Earliest period
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
18 May
n/a
18 May
n/a
-0.3 days per decade
First autumn frost
18 October
n/a
16 October
n/a
-0.9 days per decade
Growing days
155 days
n/a
154 days
n/a
-0.6 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
39 years, 1944 to 1983
A day with at least 49.6 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 95.9 mm (3.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Charlottetown 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
49.6 mm (2.0 in)
5 years
61.8 mm (2.4 in)
10 years
70.0 mm (2.8 in)
25 years
80.4 mm (3.2 in)
50 years
88.1 mm (3.5 in)
Longer than the 39 years of record
100 years
95.9 mm (3.8 in)
Longer than the 39 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, 39 years of values from 1944 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: 106.4 mm (4.2 in) in 1967; 76.7 mm (3.0 in) in 1950; 74.4 mm (2.9 in) in 1978.
Download the Data
Data for Charlottetown A standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Charlottetown 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.