Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Watrous. 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 Watrous, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
7.2 C (45.0 F)
-42.8 C (-45.0 F)
n/a
n/a
Feb
8.9 C (48.0 F)
-41.5 C (-42.7 F)
n/a
n/a
Mar
16.1 C (61.0 F)
-40.6 C (-41.1 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-28.3 C (-18.9 F)
n/a
n/a
May
37.0 C (98.6 F)
-11.1 C (12.0 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
37.2 C (99.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-1.5 C (29.3 F)
n/a
n/a
Sep
36.1 C (97.0 F)
-16.1 C (3.0 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-33.3 C (-27.9 F)
n/a
n/a
Dec
9.5 C (49.1 F)
-41.0 C (-41.8 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Watrous still stand. 1954 holds the most, with 83.
Standing records at Watrous by the year they were set
Year set
Standing records
1953
42
1954
83
1955
56
1956
57
1957
42
1958
47
1959
55
1960
32
1961
63
1962
46
1963
56
1964
38
1965
55
1966
53
1967
45
1968
50
1969
40
1970
37
1971
29
1972
67
1973
43
1974
38
1975
39
1976
34
1977
52
1978
39
1979
39
1980
49
1981
48
1982
38
1983
52
Wettest Day of Each Month
Jun: 69.1 mm (2.7 in)
The wettest day on record for each calendar month at Watrous. The most was 69.1 mm (2.7 in) on 3 June 1973.
Record daily precipitation for each month at Watrous
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
21 January 1964
Feb
17.8 mm (0.7 in)
8 February 1953
Mar
12.7 mm (0.5 in)
13 March 1953
Apr
41.1 mm (1.6 in)
19 April 1955
May
39.9 mm (1.6 in)
4 May 1977
Jun
69.1 mm (2.7 in)
3 June 1973
Jul
59.0 mm (2.3 in)
8 July 1983
Aug
37.6 mm (1.5 in)
21 August 1954
Sep
54.6 mm (2.1 in)
1 September 1953
Oct
64.0 mm (2.5 in)
2 October 1969
Nov
15.2 mm (0.6 in)
4 November 1971
Dec
30.0 mm (1.2 in)
28 December 1972
Period of Record Coverage
1953 to 1983
Complete yearUnder 90 percent of days
31 years of record at Watrous, 1953 to 1983. Every year has data for at least 90 percent of its days.
Cooler than the station meanWarmer than the station mean
One stripe for each of 30 complete years at Watrous, 1954 to 1983. Blue stripes are years cooler than the station's own mean of 1.6 C (34.8 F); red stripes are warmer. The coolest year was 1965, at 0.1 C (32.2 F), and the warmest was 1981, at 4.2 C (39.6 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Watrous as warming stripes, 1954 to 1983
Year
Annual mean temperature
Difference from the station mean
1954
1.7 C
+0.10 C
1955
0.1 C
-1.45 C
1956
0.6 C
-0.92 C
1957
1.4 C
-0.18 C
1958
2.2 C
+0.60 C
1959
2.0 C
+0.39 C
1960
1.6 C
+0.06 C
1961
2.4 C
+0.82 C
1962
2.0 C
+0.48 C
1963
2.6 C
+1.07 C
1964
2.0 C
+0.43 C
1965
0.1 C
-1.46 C
1966
0.2 C
-1.32 C
1967
1.0 C
-0.53 C
1968
2.2 C
+0.59 C
1969
0.7 C
-0.82 C
1970
0.5 C
-1.02 C
1971
0.7 C
-0.84 C
1972
0.3 C
-1.26 C
1973
2.1 C
+0.57 C
1974
1.5 C
-0.03 C
1975
1.5 C
-0.03 C
1976
2.8 C
+1.25 C
1977
2.8 C
+1.19 C
1978
1.4 C
-0.21 C
1979
0.8 C
-0.74 C
1980
2.6 C
+1.08 C
1981
4.2 C
+2.68 C
1982
0.6 C
-1.00 C
1983
2.2 C
+0.63 C
The fitted trend in annual mean temperature here over 1954 to 1983 is 0.3 C (-0.2 to 0.7) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.5 F (-0.3 to 1.2) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Watrous
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.3 C (-0.2 to 0.7) per decade
0.5 F (-0.3 to 1.2) per decade
1954 to 1983
30
Not clearly different from zero
Mean daily maximum
0.1 C (-0.3 to 0.6) per decade
0.2 F (-0.6 to 1.0) per decade
1954 to 1983
30
Not clearly different from zero
Mean daily minimum
0.39 C (-0.02 to 0.81) per decade
0.71 F (-0.04 to 1.45) per decade
1954 to 1983
30
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
1953 to 1983
Yearly extremes at Watrous: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1961
35.0 C (95.0 F)
31
Coldest night (TNn)
-42.8 C (-45.0 F)
1972
-38.3 C (-36.9 F)
31
Wettest day (Rx1day)
69.1 mm (2.7 in)
1973
39.4 mm (1.6 in)
31
Wettest five days (Rx5day)
124.5 mm (4.9 in)
1959
57.2 mm (2.3 in)
31
Longest dry spell (CDD)
48 days
1965
27 days
31
Hottest day (TXx)
The hottest day of the year at Watrous, 1953 to 1983. The record is 38.9 C (102.0 F) in 1961, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Watrous by year
Year
Hottest day (TXx)
1953
32.8 C (91.0 F)
1954
33.3 C (91.9 F)
1955
35.0 C (95.0 F)
1956
33.9 C (93.0 F)
1957
35.6 C (96.1 F)
1958
35.0 C (95.0 F)
1959
36.7 C (98.1 F)
1960
37.2 C (99.0 F)
1961
38.9 C (102.0 F)
1962
32.2 C (90.0 F)
1963
32.8 C (91.0 F)
1964
34.4 C (93.9 F)
1965
32.2 C (90.0 F)
1966
33.3 C (91.9 F)
1967
36.1 C (97.0 F)
1968
32.8 C (91.0 F)
1969
35.0 C (95.0 F)
1970
36.1 C (97.0 F)
1971
35.6 C (96.1 F)
1972
37.2 C (99.0 F)
1973
33.9 C (93.0 F)
1974
34.4 C (93.9 F)
1975
36.1 C (97.0 F)
1976
35.0 C (95.0 F)
1977
30.6 C (87.1 F)
1978
34.5 C (94.1 F)
1979
35.5 C (95.9 F)
1980
37.0 C (98.6 F)
1981
33.5 C (92.3 F)
1982
31.5 C (88.7 F)
1983
36.5 C (97.7 F)
Coldest night (TNn)
The coldest night of the year at Watrous, 1953 to 1983. The record is -42.8 C (-45.0 F) in 1972, marked on the chart; the median year is -38.3 C (-36.9 F).
Coldest night (TNn) at Watrous by year
Year
Coldest night (TNn)
1953
-36.1 C (-33.0 F)
1954
-41.1 C (-42.0 F)
1955
-37.2 C (-35.0 F)
1956
-39.4 C (-38.9 F)
1957
-35.6 C (-32.1 F)
1958
-38.3 C (-36.9 F)
1959
-36.7 C (-34.1 F)
1960
-33.3 C (-27.9 F)
1961
-37.8 C (-36.0 F)
1962
-40.6 C (-41.1 F)
1963
-36.1 C (-33.0 F)
1964
-34.4 C (-29.9 F)
1965
-37.2 C (-35.0 F)
1966
-42.2 C (-44.0 F)
1967
-38.3 C (-36.9 F)
1968
-38.9 C (-38.0 F)
1969
-41.1 C (-42.0 F)
1970
-38.9 C (-38.0 F)
1971
-39.4 C (-38.9 F)
1972
-42.8 C (-45.0 F)
1973
-37.2 C (-35.0 F)
1974
-38.3 C (-36.9 F)
1975
-35.0 C (-31.0 F)
1976
-35.0 C (-31.0 F)
1977
-38.3 C (-36.9 F)
1978
-40.0 C (-40.0 F)
1979
-41.5 C (-42.7 F)
1980
-35.5 C (-31.9 F)
1981
-35.5 C (-31.9 F)
1982
-38.5 C (-37.3 F)
1983
-41.0 C (-41.8 F)
Wettest day (Rx1day)
The wettest day of the year at Watrous, 1953 to 1983. The record is 69.1 mm (2.7 in) in 1973, marked on the chart; the median year is 39.4 mm (1.6 in).
Wettest day (Rx1day) at Watrous by year
Year
Wettest day (Rx1day)
1953
54.6 mm (2.1 in)
1954
37.6 mm (1.5 in)
1955
41.1 mm (1.6 in)
1956
20.3 mm (0.8 in)
1957
26.4 mm (1.0 in)
1958
37.3 mm (1.5 in)
1959
61.0 mm (2.4 in)
1960
54.6 mm (2.1 in)
1961
19.1 mm (0.8 in)
1962
44.5 mm (1.8 in)
1963
34.5 mm (1.4 in)
1964
25.4 mm (1.0 in)
1965
41.9 mm (1.6 in)
1966
53.3 mm (2.1 in)
1967
39.4 mm (1.6 in)
1968
30.5 mm (1.2 in)
1969
64.0 mm (2.5 in)
1970
32.3 mm (1.3 in)
1971
43.4 mm (1.7 in)
1972
30.0 mm (1.2 in)
1973
69.1 mm (2.7 in)
1974
29.2 mm (1.1 in)
1975
26.9 mm (1.1 in)
1976
40.6 mm (1.6 in)
1977
40.9 mm (1.6 in)
1978
39.6 mm (1.6 in)
1979
25.2 mm (1.0 in)
1980
22.2 mm (0.9 in)
1981
60.0 mm (2.4 in)
1982
30.2 mm (1.2 in)
1983
59.0 mm (2.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Watrous, 1953 to 1983. The record is 124.5 mm (4.9 in) in 1959, marked on the chart; the median year is 57.2 mm (2.3 in).
Wettest five days (Rx5day) at Watrous by year
Year
Wettest five days (Rx5day)
1953
78.8 mm (3.1 in)
1954
57.2 mm (2.3 in)
1955
58.0 mm (2.3 in)
1956
30.4 mm (1.2 in)
1957
38.1 mm (1.5 in)
1958
49.7 mm (2.0 in)
1959
124.5 mm (4.9 in)
1960
81.3 mm (3.2 in)
1961
26.7 mm (1.1 in)
1962
51.9 mm (2.0 in)
1963
49.1 mm (1.9 in)
1964
31.2 mm (1.2 in)
1965
87.9 mm (3.5 in)
1966
101.3 mm (4.0 in)
1967
64.8 mm (2.6 in)
1968
49.8 mm (2.0 in)
1969
93.7 mm (3.7 in)
1970
33.6 mm (1.3 in)
1971
64.5 mm (2.5 in)
1972
34.7 mm (1.4 in)
1973
93.1 mm (3.7 in)
1974
42.8 mm (1.7 in)
1975
49.6 mm (2.0 in)
1976
59.6 mm (2.3 in)
1977
68.6 mm (2.7 in)
1978
60.0 mm (2.4 in)
1979
52.0 mm (2.0 in)
1980
37.2 mm (1.5 in)
1981
80.0 mm (3.1 in)
1982
45.4 mm (1.8 in)
1983
100.8 mm (4.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Watrous, 1953 to 1983. The record is 48 days in 1965, marked on the chart; the median year is 27 days.
Longest dry spell (CDD) at Watrous by year
Year
Longest dry spell (CDD)
1953
34 days
1954
35 days
1955
27 days
1956
34 days
1957
19 days
1958
25 days
1959
28 days
1960
22 days
1961
27 days
1962
25 days
1963
26 days
1964
36 days
1965
48 days
1966
26 days
1967
35 days
1968
48 days
1969
22 days
1970
21 days
1971
27 days
1972
30 days
1973
27 days
1974
40 days
1975
43 days
1976
39 days
1977
30 days
1978
28 days
1979
25 days
1980
38 days
1981
26 days
1982
23 days
1983
25 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
30 years with a frost
Across 30 years with a frost, the median last spring frost at Watrous falls on 19 May and the median first autumn frost on 10 September, which leaves a median of 110 days between them.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
Frost dates and growing season at Watrous
Measure
Median, all years
Earliest period
Recent period (1954 to 1983)
Recent against earliest
Fitted trend
Last spring frost
19 May
n/a
19 May
n/a
-3.4 days per decade
First autumn frost
10 September
n/a
10 September
n/a
-0.1 days per decade
Growing days
110 days
n/a
110 days
n/a
+3.2 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.
Download the Data
Data for Watrous standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Watrous 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.