Record envelope, standing records and threshold days for Cook STN (USC00231870), Missouri, United States, with 42 years of record.
Key Facts for Cook STN
Cook STN (USC00231870) is a weather station in Missouri, United States at 37.82 latitude and -91.43 longitude, 302 m (991 ft) above sea level.
The station reports from 1943 to 1984, 42 years of record.
1,464 records set at Cook STN still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Cook STN set a daily record precipitation of 40.1 mm (1.6 in) on 30 December 1984.
About the Station
Location: Missouri, United States, 37.82 latitude, -91.43 longitude.
Elevation: 302 m (991 ft).
Period of record: 1943 to 1984, 42 years.
Eligible elements: prcp, snow, snwd.
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 Cook STN. 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 Cook STN, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
24.4 C (75.9 F)
-33.9 C (-29.0 F)
n/a
n/a
Feb
31.1 C (88.0 F)
-29.4 C (-20.9 F)
n/a
n/a
Mar
31.7 C (89.1 F)
-25.0 C (-13.0 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-8.9 C (16.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-3.9 C (25.0 F)
n/a
n/a
Jun
38.3 C (100.9 F)
0.0 C (32.0 F)
n/a
n/a
Jul
43.3 C (109.9 F)
4.4 C (39.9 F)
n/a
n/a
Aug
41.1 C (106.0 F)
1.7 C (35.1 F)
n/a
n/a
Sep
38.3 C (100.9 F)
-2.2 C (28.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-10.0 C (14.0 F)
n/a
n/a
Nov
28.3 C (82.9 F)
-18.3 C (-0.9 F)
n/a
n/a
Dec
23.9 C (75.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Cook STN still stand. 1980 holds the most, with 91.
Standing records at Cook STN by the year they were set
Year set
Standing records
1962
67
1963
87
1964
73
1965
72
1966
60
1967
84
1968
72
1969
44
1970
66
1971
60
1972
56
1973
40
1974
70
1975
45
1976
77
1977
52
1978
63
1979
46
1980
91
1981
55
1982
59
1983
69
1984
56
All-Time Record Progression
1 new records
1 all-time records were set at Cook STN between 31 January 1982 and 31 January 1982. Each dot is a new record.
When Cook STN set new all-time records
Date
Kind
Detail
1982-01-31
Record daily snowfall
Record daily snowfall 35.6 cm (14.0 in)
Wettest Day of Each Month
Aug: 109.7 mm (4.3 in)
The wettest day on record for each calendar month at Cook STN. The most was 109.7 mm (4.3 in) on 9 August 1951.
Record daily precipitation for each month at Cook STN
Month
Record daily precipitation (mm)
Date
Jan
102.4 mm (4.0 in)
4 January 1950
Feb
68.1 mm (2.7 in)
15 February 1949
Mar
53.1 mm (2.1 in)
6 March 1945
Apr
97.8 mm (3.9 in)
14 April 1945
May
75.2 mm (3.0 in)
10 May 1950
Jun
101.6 mm (4.0 in)
8 June 1945
Jul
101.1 mm (4.0 in)
16 July 1958
Aug
109.7 mm (4.3 in)
9 August 1951
Sep
99.1 mm (3.9 in)
7 September 1969
Oct
73.7 mm (2.9 in)
20 October 1983
Nov
64.3 mm (2.5 in)
13 November 1972
Dec
106.7 mm (4.2 in)
3 December 1982
Period of Record Coverage
1962 to 1984
Complete yearUnder 90 percent of days
23 years of record at Cook STN, 1962 to 1984. 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 20 complete years at Cook STN, 1963 to 1984. Blue stripes are years cooler than the station's own mean of 12.6 C (54.6 F); red stripes are warmer. The coolest year was 1979, at 11.3 C (52.4 F), and the warmest was 1965, at 13.5 C (56.3 F). The strongest colour marks a difference of 1.3 C (2.3 F).
Annual mean temperature at Cook STN as warming stripes, 1963 to 1984
Year
Annual mean temperature
Difference from the station mean
1963
12.8 C
+0.19 C
1964
13.3 C
+0.73 C
1965
13.5 C
+0.93 C
1966
12.3 C
-0.26 C
1967
12.9 C
+0.36 C
1968
12.2 C
-0.35 C
1969
12.5 C
-0.07 C
1970
12.9 C
+0.29 C
1971
13.3 C
+0.73 C
1972
12.8 C
+0.25 C
1974
13.0 C
+0.47 C
1976
11.8 C
-0.80 C
1977
12.7 C
+0.12 C
1978
11.4 C
-1.20 C
1979
11.3 C
-1.25 C
1980
12.7 C
+0.14 C
1981
12.5 C
-0.11 C
1982
12.4 C
-0.20 C
1983
12.5 C
-0.03 C
1984
12.7 C
+0.09 C
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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 1984
Yearly extremes at Cook STN: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.3 C (109.9 F)
1980
37.8 C (100.0 F)
23
Coldest night (TNn)
-33.9 C (-29.0 F)
1977
-25.0 C (-13.0 F)
23
Wettest day (Rx1day)
109.7 mm (4.3 in)
1951
64.8 mm (2.6 in)
42
Wettest five days (Rx5day)
245.6 mm (9.7 in)
1945
102.6 mm (4.0 in)
42
Longest dry spell (CDD)
45 days
1947
24 days
42
Hottest day (TXx)
The hottest day of the year at Cook STN, 1943 to 1984. The record is 43.3 C (109.9 F) in 1980, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Cook STN by year
Year
Hottest day (TXx)
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
41.1 C (106.0 F)
1963
37.2 C (99.0 F)
1964
40.0 C (104.0 F)
1965
36.1 C (97.0 F)
1966
39.4 C (102.9 F)
1967
35.0 C (95.0 F)
1968
35.6 C (96.1 F)
1969
38.3 C (100.9 F)
1970
38.9 C (102.0 F)
1971
37.8 C (100.0 F)
1972
37.2 C (99.0 F)
1973
35.6 C (96.1 F)
1974
38.3 C (100.9 F)
1975
35.0 C (95.0 F)
1976
38.9 C (102.0 F)
1977
38.3 C (100.9 F)
1978
36.7 C (98.1 F)
1979
35.0 C (95.0 F)
1980
43.3 C (109.9 F)
1981
35.6 C (96.1 F)
1982
37.8 C (100.0 F)
1983
40.0 C (104.0 F)
1984
39.4 C (102.9 F)
Coldest night (TNn)
The coldest night of the year at Cook STN, 1943 to 1984. The record is -33.9 C (-29.0 F) in 1977, marked on the chart; the median year is -25.0 C (-13.0 F).
Coldest night (TNn) at Cook STN by year
Year
Coldest night (TNn)
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
-25.6 C (-14.1 F)
1963
-28.3 C (-18.9 F)
1964
-25.6 C (-14.1 F)
1965
-19.4 C (-2.9 F)
1966
-21.7 C (-7.1 F)
1967
-16.7 C (1.9 F)
1968
-22.2 C (-8.0 F)
1969
-17.8 C (0.0 F)
1970
-23.3 C (-9.9 F)
1971
-18.9 C (-2.0 F)
1972
-25.6 C (-14.1 F)
1973
-23.9 C (-11.0 F)
1974
-23.3 C (-9.9 F)
1975
-16.7 C (1.9 F)
1976
-23.9 C (-11.0 F)
1977
-33.9 C (-29.0 F)
1978
-25.0 C (-13.0 F)
1979
-29.4 C (-20.9 F)
1980
-25.6 C (-14.1 F)
1981
-25.0 C (-13.0 F)
1982
-26.7 C (-16.1 F)
1983
-26.1 C (-15.0 F)
1984
-31.1 C (-24.0 F)
Wettest day (Rx1day)
The wettest day of the year at Cook STN, 1943 to 1984. The record is 109.7 mm (4.3 in) in 1951, marked on the chart; the median year is 64.8 mm (2.6 in).
Wettest day (Rx1day) at Cook STN by year
Year
Wettest day (Rx1day)
1943
20.8 mm (0.8 in)
1944
39.6 mm (1.6 in)
1945
101.6 mm (4.0 in)
1946
64.0 mm (2.5 in)
1947
64.8 mm (2.6 in)
1948
90.9 mm (3.6 in)
1949
68.1 mm (2.7 in)
1950
102.4 mm (4.0 in)
1951
109.7 mm (4.3 in)
1952
54.6 mm (2.1 in)
1953
32.5 mm (1.3 in)
1954
46.0 mm (1.8 in)
1955
44.7 mm (1.8 in)
1956
50.3 mm (2.0 in)
1957
88.4 mm (3.5 in)
1958
101.1 mm (4.0 in)
1959
61.2 mm (2.4 in)
1960
49.8 mm (2.0 in)
1961
68.6 mm (2.7 in)
1962
51.6 mm (2.0 in)
1963
83.1 mm (3.3 in)
1964
53.3 mm (2.1 in)
1965
68.6 mm (2.7 in)
1966
64.8 mm (2.6 in)
1967
66.0 mm (2.6 in)
1968
59.2 mm (2.3 in)
1969
99.1 mm (3.9 in)
1970
65.0 mm (2.6 in)
1971
50.8 mm (2.0 in)
1972
64.3 mm (2.5 in)
1973
88.4 mm (3.5 in)
1974
64.8 mm (2.6 in)
1975
55.4 mm (2.2 in)
1976
53.6 mm (2.1 in)
1977
82.6 mm (3.3 in)
1978
56.9 mm (2.2 in)
1979
99.6 mm (3.9 in)
1980
59.7 mm (2.4 in)
1981
70.9 mm (2.8 in)
1982
106.7 mm (4.2 in)
1983
73.7 mm (2.9 in)
1984
82.6 mm (3.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Cook STN, 1943 to 1984. The record is 245.6 mm (9.7 in) in 1945, marked on the chart; the median year is 102.6 mm (4.0 in).
Wettest five days (Rx5day) at Cook STN by year
Year
Wettest five days (Rx5day)
1943
25.4 mm (1.0 in)
1944
73.4 mm (2.9 in)
1945
245.6 mm (9.7 in)
1946
137.9 mm (5.4 in)
1947
97.8 mm (3.9 in)
1948
125.9 mm (5.0 in)
1949
122.1 mm (4.8 in)
1950
126.5 mm (5.0 in)
1951
124.0 mm (4.9 in)
1952
80.7 mm (3.2 in)
1953
54.3 mm (2.1 in)
1954
64.0 mm (2.5 in)
1955
66.1 mm (2.6 in)
1956
67.6 mm (2.7 in)
1957
151.6 mm (6.0 in)
1958
154.7 mm (6.1 in)
1959
66.8 mm (2.6 in)
1960
93.2 mm (3.7 in)
1961
76.5 mm (3.0 in)
1962
63.5 mm (2.5 in)
1963
108.5 mm (4.3 in)
1964
79.2 mm (3.1 in)
1965
131.9 mm (5.2 in)
1966
89.1 mm (3.5 in)
1967
97.0 mm (3.8 in)
1968
93.4 mm (3.7 in)
1969
106.5 mm (4.2 in)
1970
106.4 mm (4.2 in)
1971
87.9 mm (3.5 in)
1972
82.0 mm (3.2 in)
1973
137.0 mm (5.4 in)
1974
102.4 mm (4.0 in)
1975
67.8 mm (2.7 in)
1976
53.6 mm (2.1 in)
1977
132.6 mm (5.2 in)
1978
108.3 mm (4.3 in)
1979
151.4 mm (6.0 in)
1980
102.8 mm (4.0 in)
1981
111.5 mm (4.4 in)
1982
183.0 mm (7.2 in)
1983
121.0 mm (4.8 in)
1984
147.7 mm (5.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Cook STN, 1943 to 1984. The record is 45 days in 1947, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Cook STN by year
Year
Longest dry spell (CDD)
1943
27 days
1944
29 days
1945
30 days
1946
27 days
1947
45 days
1948
21 days
1949
42 days
1950
30 days
1951
16 days
1952
24 days
1953
25 days
1954
17 days
1955
42 days
1956
27 days
1957
22 days
1958
25 days
1959
15 days
1960
20 days
1961
19 days
1962
31 days
1963
34 days
1964
29 days
1965
19 days
1966
29 days
1967
20 days
1968
34 days
1969
20 days
1970
20 days
1971
17 days
1972
22 days
1973
20 days
1974
24 days
1975
15 days
1976
32 days
1977
23 days
1978
18 days
1979
37 days
1980
22 days
1981
20 days
1982
15 days
1983
30 days
1984
17 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
20 years with a frost
Across 20 years with a frost, the median last spring frost at Cook STN falls on 7 May and the median first autumn frost on 4 October, which leaves a median of 153 days between them.
Frost dates and growing season at Cook STN
Measure
Median, all years
Earliest period
Recent period (1963 to 1984)
Recent against earliest
Fitted trend
Last spring frost
7 May
n/a
7 May
n/a
n/a
First autumn frost
4 October
n/a
4 October
n/a
n/a
Growing days
153 days
n/a
153 days
n/a
n/a
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
41 years, 1944 to 1984
A day with at least 67.1 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 129.6 mm (5.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Cook STN: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
67.1 mm (2.6 in)
5 years
85.6 mm (3.4 in)
10 years
97.1 mm (3.8 in)
25 years
110.8 mm (4.4 in)
50 years
120.5 mm (4.7 in)
Longer than the 41 years of record
100 years
129.6 mm (5.1 in)
Longer than the 41 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, 41 years of values from 1944 to 1984.
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: 109.7 mm (4.3 in) in 1951; 106.7 mm (4.2 in) in 1982; 102.4 mm (4.0 in) in 1950.
Download the Data
Data for Cook STN standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cook STN 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.