Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Smithfield Cda. 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 Smithfield Cda, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
14.4 C (57.9 F)
-37.0 C (-34.6 F)
n/a
n/a
Feb
14.0 C (57.2 F)
-29.4 C (-20.9 F)
n/a
n/a
Mar
22.8 C (73.0 F)
-27.2 C (-17.0 F)
n/a
n/a
Apr
27.8 C (82.0 F)
-16.7 C (1.9 F)
n/a
n/a
May
32.8 C (91.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
35.6 C (96.1 F)
0.0 C (32.0 F)
n/a
n/a
Jul
37.8 C (100.0 F)
6.0 C (42.8 F)
n/a
n/a
Aug
36.1 C (97.0 F)
3.9 C (39.0 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-2.2 C (28.0 F)
n/a
n/a
Oct
25.6 C (78.1 F)
-7.8 C (18.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-20.0 C (-4.0 F)
n/a
n/a
Dec
18.0 C (64.4 F)
-31.7 C (-25.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Smithfield Cda still stand. 1955 holds the most, with 65.
Standing records at Smithfield Cda by the year they were set
Year set
Standing records
1949
31
1950
64
1951
47
1952
30
1953
51
1954
35
1955
65
1956
49
1957
50
1958
37
1959
59
1960
25
1961
31
1962
42
1963
45
1964
42
1965
59
1966
45
1967
45
1968
25
1969
17
1970
32
1971
36
1972
28
1973
34
1974
30
1975
46
1976
53
1977
46
1978
29
1979
65
1980
38
1981
48
1982
37
1983
48
All-Time Record Progression
2 new records
2 all-time records were set at Smithfield Cda between 3 January 1981 and 4 January 1981. Each dot is a new record.
When Smithfield Cda set new all-time records
Date
Kind
Detail
1981-01-03
Record low maximum temperature
Record low maximum temperature -24.0 C (-11.2 F)
1981-01-04
Record low minimum temperature
Record low minimum temperature -37.0 C (-34.6 F)
Wettest Day of Each Month
Jul: 78.0 mm (3.1 in)
The wettest day on record for each calendar month at Smithfield Cda. The most was 78.0 mm (3.1 in) on 27 July 1969.
Record daily precipitation for each month at Smithfield Cda
Month
Record daily precipitation (mm)
Date
Jan
50.5 mm (2.0 in)
9 January 1978
Feb
48.3 mm (1.9 in)
28 February 1966
Mar
47.8 mm (1.9 in)
3 March 1953
Apr
47.0 mm (1.9 in)
28 April 1959
May
77.0 mm (3.0 in)
23 May 1962
Jun
45.7 mm (1.8 in)
27 June 1968
Jul
78.0 mm (3.1 in)
27 July 1969
Aug
74.7 mm (2.9 in)
11 August 1964
Sep
62.5 mm (2.5 in)
28 September 1967
Oct
74.7 mm (2.9 in)
15 October 1955
Nov
45.0 mm (1.8 in)
29 November 1963
Dec
51.6 mm (2.0 in)
4 December 1961
Period of Record Coverage
1949 to 1983
Complete yearUnder 90 percent of days
35 years of record at Smithfield Cda, 1949 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1949.
Cooler than the station meanWarmer than the station mean
One stripe for each of 33 complete years at Smithfield Cda, 1950 to 1983. Blue stripes are years cooler than the station's own mean of 6.8 C (44.3 F); red stripes are warmer. The coolest year was 1972, at 6.0 C (42.8 F), and the warmest was 1953, at 8.2 C (46.7 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Smithfield Cda as warming stripes, 1950 to 1983
Year
Annual mean temperature
Difference from the station mean
1950
6.2 C
-0.61 C
1951
6.8 C
+0.01 C
1952
7.6 C
+0.75 C
1953
8.2 C
+1.34 C
1954
6.6 C
-0.20 C
1955
7.1 C
+0.23 C
1956
6.1 C
-0.73 C
1957
7.3 C
+0.45 C
1958
6.1 C
-0.69 C
1959
6.6 C
-0.19 C
1960
6.3 C
-0.55 C
1962
6.6 C
-0.21 C
1963
6.2 C
-0.61 C
1964
7.0 C
+0.19 C
1965
6.2 C
-0.67 C
1966
6.6 C
-0.18 C
1967
6.5 C
-0.30 C
1968
6.4 C
-0.38 C
1969
6.8 C
+0.00 C
1970
6.7 C
-0.11 C
1971
7.1 C
+0.23 C
1972
6.0 C
-0.80 C
1973
7.9 C
+1.12 C
1974
6.5 C
-0.28 C
1975
7.6 C
+0.79 C
1976
6.3 C
-0.49 C
1977
7.3 C
+0.49 C
1978
6.5 C
-0.33 C
1979
7.3 C
+0.43 C
1980
6.8 C
-0.06 C
1981
7.4 C
+0.62 C
1982
6.6 C
-0.25 C
1983
7.7 C
+0.87 C
The fitted trend in annual mean temperature here over 1950 to 1983 is 0.1 C (-0.1 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 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 Smithfield Cda
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (-0.1 to 0.3) per decade
0.1 F (-0.2 to 0.5) per decade
1950 to 1983
33
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.3 to 0.1) per decade
-0.1 F (-0.5 to 0.2) per decade
1950 to 1983
33
Not clearly different from zero
Mean daily minimum
0.23 C (0.00 to 0.46) per decade
0.41 F (0.00 to 0.83) per decade
1950 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
1949 to 1983
Yearly extremes at Smithfield Cda: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
37.8 C (100.0 F)
1966
32.2 C (90.0 F)
35
Coldest night (TNn)
-37.0 C (-34.6 F)
1981
-26.7 C (-16.1 F)
35
Wettest day (Rx1day)
78.0 mm (3.1 in)
1969
49.0 mm (1.9 in)
35
Wettest five days (Rx5day)
151.2 mm (6.0 in)
1955
75.2 mm (3.0 in)
35
Longest dry spell (CDD)
30 days
1963
16 days
35
Hottest day (TXx)
The hottest day of the year at Smithfield Cda, 1949 to 1983. The record is 37.8 C (100.0 F) in 1966, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Smithfield Cda by year
Year
Hottest day (TXx)
1949
35.6 C (96.1 F)
1950
30.0 C (86.0 F)
1951
29.4 C (84.9 F)
1952
33.9 C (93.0 F)
1953
35.0 C (95.0 F)
1954
31.1 C (88.0 F)
1955
36.1 C (97.0 F)
1956
32.8 C (91.0 F)
1957
32.2 C (90.0 F)
1958
29.4 C (84.9 F)
1959
32.8 C (91.0 F)
1960
29.4 C (84.9 F)
1961
30.6 C (87.1 F)
1962
32.8 C (91.0 F)
1963
33.3 C (91.9 F)
1964
35.6 C (96.1 F)
1965
30.6 C (87.1 F)
1966
37.8 C (100.0 F)
1967
28.9 C (84.0 F)
1968
31.7 C (89.1 F)
1969
31.1 C (88.0 F)
1970
32.2 C (90.0 F)
1971
32.2 C (90.0 F)
1972
29.4 C (84.9 F)
1973
33.9 C (93.0 F)
1974
31.1 C (88.0 F)
1975
32.2 C (90.0 F)
1976
30.0 C (86.0 F)
1977
34.0 C (93.2 F)
1978
33.0 C (91.4 F)
1979
31.0 C (87.8 F)
1980
29.5 C (85.1 F)
1981
33.0 C (91.4 F)
1982
32.0 C (89.6 F)
1983
34.5 C (94.1 F)
Coldest night (TNn)
The coldest night of the year at Smithfield Cda, 1949 to 1983. The record is -37.0 C (-34.6 F) in 1981, marked on the chart; the median year is -26.7 C (-16.1 F).
Coldest night (TNn) at Smithfield Cda by year
Year
Coldest night (TNn)
1949
-20.0 C (-4.0 F)
1950
-27.2 C (-17.0 F)
1951
-29.4 C (-20.9 F)
1952
-26.7 C (-16.1 F)
1953
-20.6 C (-5.1 F)
1954
-25.6 C (-14.1 F)
1955
-31.7 C (-25.1 F)
1956
-23.3 C (-9.9 F)
1957
-31.1 C (-24.0 F)
1958
-27.2 C (-17.0 F)
1959
-26.1 C (-15.0 F)
1960
-25.6 C (-14.1 F)
1961
-26.7 C (-16.1 F)
1962
-29.4 C (-20.9 F)
1963
-25.6 C (-14.1 F)
1964
-23.3 C (-9.9 F)
1965
-26.7 C (-16.1 F)
1966
-28.9 C (-20.0 F)
1967
-27.8 C (-18.0 F)
1968
-32.8 C (-27.0 F)
1969
-22.2 C (-8.0 F)
1970
-28.3 C (-18.9 F)
1971
-29.4 C (-20.9 F)
1972
-26.1 C (-15.0 F)
1973
-25.6 C (-14.1 F)
1974
-22.2 C (-8.0 F)
1975
-25.0 C (-13.0 F)
1976
-31.7 C (-25.1 F)
1977
-29.4 C (-20.9 F)
1978
-23.0 C (-9.4 F)
1979
-28.0 C (-18.4 F)
1980
-30.0 C (-22.0 F)
1981
-37.0 C (-34.6 F)
1982
-29.0 C (-20.2 F)
1983
-23.0 C (-9.4 F)
Wettest day (Rx1day)
The wettest day of the year at Smithfield Cda, 1949 to 1983. The record is 78.0 mm (3.1 in) in 1969, marked on the chart; the median year is 49.0 mm (1.9 in).
Wettest day (Rx1day) at Smithfield Cda by year
Year
Wettest day (Rx1day)
1949
27.7 mm (1.1 in)
1950
49.5 mm (1.9 in)
1951
48.8 mm (1.9 in)
1952
47.0 mm (1.9 in)
1953
47.8 mm (1.9 in)
1954
33.0 mm (1.3 in)
1955
74.7 mm (2.9 in)
1956
50.3 mm (2.0 in)
1957
45.7 mm (1.8 in)
1958
54.6 mm (2.1 in)
1959
68.6 mm (2.7 in)
1960
32.8 mm (1.3 in)
1961
51.6 mm (2.0 in)
1962
77.0 mm (3.0 in)
1963
57.7 mm (2.3 in)
1964
74.7 mm (2.9 in)
1965
58.9 mm (2.3 in)
1966
49.0 mm (1.9 in)
1967
62.5 mm (2.5 in)
1968
45.7 mm (1.8 in)
1969
78.0 mm (3.1 in)
1970
43.2 mm (1.7 in)
1971
40.1 mm (1.6 in)
1972
47.5 mm (1.9 in)
1973
51.1 mm (2.0 in)
1974
40.6 mm (1.6 in)
1975
44.7 mm (1.8 in)
1976
30.2 mm (1.2 in)
1977
60.7 mm (2.4 in)
1978
50.5 mm (2.0 in)
1979
40.0 mm (1.6 in)
1980
60.7 mm (2.4 in)
1981
45.6 mm (1.8 in)
1982
36.0 mm (1.4 in)
1983
54.2 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Smithfield Cda, 1949 to 1983. The record is 151.2 mm (6.0 in) in 1955, marked on the chart; the median year is 75.2 mm (3.0 in).
Wettest five days (Rx5day) at Smithfield Cda by year
Year
Wettest five days (Rx5day)
1949
48.0 mm (1.9 in)
1950
72.1 mm (2.8 in)
1951
70.0 mm (2.8 in)
1952
83.3 mm (3.3 in)
1953
59.1 mm (2.3 in)
1954
56.7 mm (2.2 in)
1955
151.2 mm (6.0 in)
1956
63.5 mm (2.5 in)
1957
60.7 mm (2.4 in)
1958
86.1 mm (3.4 in)
1959
96.8 mm (3.8 in)
1960
55.1 mm (2.2 in)
1961
64.3 mm (2.5 in)
1962
77.0 mm (3.0 in)
1963
80.3 mm (3.2 in)
1964
76.7 mm (3.0 in)
1965
68.0 mm (2.7 in)
1966
81.2 mm (3.2 in)
1967
91.2 mm (3.6 in)
1968
75.2 mm (3.0 in)
1969
130.6 mm (5.1 in)
1970
92.7 mm (3.6 in)
1971
55.1 mm (2.2 in)
1972
67.4 mm (2.7 in)
1973
75.3 mm (3.0 in)
1974
74.7 mm (2.9 in)
1975
62.4 mm (2.5 in)
1976
70.4 mm (2.8 in)
1977
81.6 mm (3.2 in)
1978
76.1 mm (3.0 in)
1979
67.0 mm (2.6 in)
1980
90.9 mm (3.6 in)
1981
85.6 mm (3.4 in)
1982
59.4 mm (2.3 in)
1983
86.2 mm (3.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Smithfield Cda, 1949 to 1983. The record is 30 days in 1963, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Smithfield Cda by year
Year
Longest dry spell (CDD)
1949
13 days
1950
14 days
1951
15 days
1952
22 days
1953
15 days
1954
16 days
1955
22 days
1956
18 days
1957
23 days
1958
19 days
1959
16 days
1960
16 days
1961
16 days
1962
17 days
1963
30 days
1964
17 days
1965
13 days
1966
16 days
1967
21 days
1968
20 days
1969
16 days
1970
16 days
1971
24 days
1972
11 days
1973
17 days
1974
13 days
1975
13 days
1976
17 days
1977
21 days
1978
19 days
1979
24 days
1980
14 days
1981
16 days
1982
16 days
1983
19 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 Smithfield Cda falls on 11 May and the median first autumn frost on 1 October, which leaves a median of 145 days between them.
Fitted over all years, the growing season changes by +6.4 days per decade at this station.
Frost dates and growing season at Smithfield Cda
Measure
Median, all years
Earliest period
Recent period (1953 to 1983)
Recent against earliest
Fitted trend
Last spring frost
11 May
n/a
12 May
n/a
-4.0 days per decade
First autumn frost
1 October
n/a
1 October
n/a
+2.3 days per decade
Growing days
145 days
n/a
144 days
n/a
+6.4 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
33 years, 1951 to 1983
A day with at least 49.9 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 89.7 mm (3.5 in) of rain is expected about once in 100 years.
Rainfall return levels at Smithfield Cda: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
49.9 mm (2.0 in)
5 years
61.6 mm (2.4 in)
10 years
68.9 mm (2.7 in)
25 years
77.7 mm (3.1 in)
50 years
83.9 mm (3.3 in)
Longer than the 33 years of record
100 years
89.7 mm (3.5 in)
Longer than the 33 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, 33 years of values from 1951 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: 78.0 mm (3.1 in) in 1969; 77.0 mm (3.0 in) in 1962; 74.7 mm (2.9 in) in 1955.
Download the Data
Data for Smithfield Cda standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Smithfield Cda 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.