Record envelope, standing records and threshold days for Jetmore (USC00144081), Kansas, United States, with 86 years of record.
Key Facts for Jetmore
Jetmore (USC00144081) is a weather station in Kansas, United States at 38.08 latitude and -99.90 longitude, 702 m (2,302 ft) above sea level.
The station reports from 1900 to 1985, 86 years of record.
1,464 records set at Jetmore still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Jetmore set a daily record snow depth of 7.6 cm (3.0 in) on 31 March 1985.
About the Station
Location: Kansas, United States, 38.08 latitude, -99.90 longitude.
Elevation: 702 m (2,302 ft).
Period of record: 1900 to 1985, 86 years.
Eligible elements: tmax, tmin, 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 Jetmore. 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 Jetmore, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.8 C (82.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Feb
31.7 C (89.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Mar
36.7 C (98.1 F)
-28.3 C (-18.9 F)
n/a
n/a
Apr
36.1 C (97.0 F)
-13.3 C (8.1 F)
n/a
n/a
May
40.6 C (105.1 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
43.9 C (111.0 F)
1.7 C (35.1 F)
n/a
n/a
Jul
46.7 C (116.1 F)
5.6 C (42.1 F)
n/a
n/a
Aug
45.6 C (114.1 F)
2.2 C (36.0 F)
n/a
n/a
Sep
42.8 C (109.0 F)
-3.3 C (26.1 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-12.8 C (9.0 F)
n/a
n/a
Nov
32.8 C (91.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Dec
29.4 C (84.9 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 Jetmore still stand. 1936 holds the most, with 46.
Standing records at Jetmore by the year they were set
Year set
Standing records
1901
8
1902
25
1903
21
1904
13
1905
16
1906
22
1907
21
1908
15
1909
20
1910
15
1911
32
1912
20
1913
4
1914
16
1915
24
1916
26
1917
29
1918
22
1919
23
1920
17
1921
18
1922
10
1923
4
1924
21
1925
18
1926
16
1927
21
1928
22
1929
8
1930
22
1931
22
1932
14
1933
28
1934
44
1935
14
1936
46
1937
18
1938
19
1939
28
1940
20
1941
14
1942
15
1943
21
1944
11
1945
15
1946
18
1947
23
1948
20
1949
5
1950
16
1951
18
1952
28
1953
31
1954
23
1955
24
1956
14
1957
10
1958
11
1959
22
1960
21
1961
8
1962
22
1963
27
1964
16
1965
14
1966
9
1967
20
1968
18
1969
11
1970
13
1971
12
1972
16
1973
8
1974
14
1975
16
1976
11
1977
10
1978
15
1979
13
1980
8
1981
14
1982
7
All-Time Record Progression
8 new records
8 all-time records were set at Jetmore between 30 June 1933 and 24 March 1980. Each dot is a new record.
When Jetmore set new all-time records
Date
Kind
Detail
1933-06-30
Record high maximum temperature
Record high maximum temperature 43.9 C (111.0 F)
1933-07-01
Record high maximum temperature
Record high maximum temperature 45.0 C (113.0 F)
1933-07-01
Record high minimum temperature
Record high minimum temperature 27.2 C (81.0 F)
1934-07-04
Record high maximum temperature
Record high maximum temperature 46.7 C (116.1 F)
1935-08-01
Record high minimum temperature
Record high minimum temperature 28.3 C (82.9 F)
1970-03-16
Record daily snowfall
Record daily snowfall 33.0 cm (13.0 in)
1979-07-23
Record daily precipitation
Record daily precipitation 137.4 mm (5.4 in)
1980-03-24
Record snow depth
Record snow depth 45.7 cm (18.0 in)
Wettest Day of Each Month
Jul: 137.4 mm (5.4 in)
The wettest day on record for each calendar month at Jetmore. The most was 137.4 mm (5.4 in) on 23 July 1979.
Record daily precipitation for each month at Jetmore
Month
Record daily precipitation (mm)
Date
Jan
28.4 mm (1.1 in)
13 January 1941
Feb
50.8 mm (2.0 in)
25 February 1912
Mar
58.2 mm (2.3 in)
24 March 1973
Apr
77.2 mm (3.0 in)
10 April 1944
May
130.6 mm (5.1 in)
4 May 1981
Jun
108.0 mm (4.3 in)
22 June 1909
Jul
137.4 mm (5.4 in)
23 July 1979
Aug
91.2 mm (3.6 in)
3 August 1953
Sep
90.7 mm (3.6 in)
3 September 1943
Oct
75.7 mm (3.0 in)
30 October 1979
Nov
52.6 mm (2.1 in)
19 November 1930
Dec
39.4 mm (1.6 in)
4 December 1973
Period of Record Coverage
1900 to 1982
Complete yearUnder 90 percent of days
83 years of record at Jetmore, 1900 to 1982. 13 years have data for under 90 percent of days and are left out of rankings: 1900, 1903, 1904, 1905, 1913, 1920, 1922, 1923 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 64 complete years at Jetmore, 1902 to 1981. Blue stripes are years cooler than the station's own mean of 13.3 C (55.9 F); red stripes are warmer. The coolest year was 1915, at 11.6 C (52.9 F), and the warmest was 1934, at 15.4 C (59.7 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Jetmore as warming stripes, 1902 to 1981
Year
Annual mean temperature
Difference from the station mean
1902
12.6 C
-0.69 C
1906
12.6 C
-0.66 C
1907
13.1 C
-0.13 C
1908
13.5 C
+0.27 C
1909
12.2 C
-1.08 C
1910
13.4 C
+0.13 C
1911
13.0 C
-0.26 C
1914
12.9 C
-0.39 C
1915
11.6 C
-1.66 C
1916
12.2 C
-1.07 C
1917
12.1 C
-1.16 C
1918
13.2 C
-0.05 C
1919
12.0 C
-1.21 C
1921
13.5 C
+0.27 C
1924
11.9 C
-1.37 C
1925
13.2 C
-0.02 C
1926
12.8 C
-0.45 C
1928
12.4 C
-0.87 C
1931
14.3 C
+1.00 C
1932
12.8 C
-0.47 C
1933
14.6 C
+1.36 C
1934
15.4 C
+2.12 C
1935
14.4 C
+1.12 C
1936
14.0 C
+0.71 C
1938
14.9 C
+1.65 C
1939
14.8 C
+1.55 C
1940
12.9 C
-0.31 C
1941
13.3 C
+0.03 C
1942
13.0 C
-0.26 C
1943
13.5 C
+0.26 C
1944
12.8 C
-0.41 C
1945
12.8 C
-0.46 C
1946
14.4 C
+1.15 C
1947
12.9 C
-0.31 C
1948
12.6 C
-0.70 C
1949
12.8 C
-0.41 C
1950
13.0 C
-0.26 C
1951
11.7 C
-1.56 C
1952
13.6 C
+0.37 C
1953
14.6 C
+1.32 C
1954
14.7 C
+1.49 C
1955
13.4 C
+0.19 C
1956
14.3 C
+1.03 C
1957
12.6 C
-0.63 C
1958
12.6 C
-0.61 C
1959
12.6 C
-0.62 C
1960
12.3 C
-0.92 C
1961
12.4 C
-0.87 C
1962
13.4 C
+0.15 C
1963
14.6 C
+1.33 C
1964
13.9 C
+0.69 C
1965
13.3 C
+0.06 C
1966
12.9 C
-0.40 C
1967
13.7 C
+0.48 C
1968
13.3 C
+0.06 C
1969
12.9 C
-0.34 C
1970
13.3 C
+0.07 C
1972
13.3 C
+0.09 C
1973
13.6 C
+0.36 C
1974
14.0 C
+0.72 C
1975
13.7 C
+0.41 C
1976
13.6 C
+0.34 C
1978
12.6 C
-0.66 C
1981
14.0 C
+0.76 C
The annual mean temperature here has risen by 0.10 C (0.00 to 0.19) per decade over 1902 to 1981. In Fahrenheit: 0.17 F (0.00 to 0.35) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Jetmore
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.10 C (0.00 to 0.19) per decade
0.17 F (0.00 to 0.35) per decade
1902 to 1981
64
Rise
Mean daily maximum
0.04 C (-0.08 to 0.17) per decade
0.1 F (-0.1 to 0.3) per decade
1902 to 1981
64
Not clearly different from zero
Mean daily minimum
0.1 C (0.1 to 0.2) per decade
0.3 F (0.1 to 0.4) per decade
1902 to 1981
64
Rise
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
1900 to 1985
Yearly extremes at Jetmore: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
46.7 C (116.1 F)
1934
40.6 C (105.1 F)
83
Coldest night (TNn)
-31.1 C (-24.0 F)
1918
-22.8 C (-9.0 F)
83
Wettest day (Rx1day)
137.4 mm (5.4 in)
1979
53.3 mm (2.1 in)
85
Wettest five days (Rx5day)
160.1 mm (6.3 in)
1981
74.7 mm (2.9 in)
84
Longest dry spell (CDD)
112 days
1922
40 days
85
Hottest day (TXx)
The hottest day of the year at Jetmore, 1900 to 1985. The record is 46.7 C (116.1 F) in 1934, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Jetmore by year
Year
Hottest day (TXx)
1900
17.2 C (63.0 F)
1901
42.2 C (108.0 F)
1902
42.2 C (108.0 F)
1903
42.2 C (108.0 F)
1904
40.0 C (104.0 F)
1905
32.2 C (90.0 F)
1906
38.3 C (100.9 F)
1907
40.6 C (105.1 F)
1908
40.0 C (104.0 F)
1909
40.6 C (105.1 F)
1910
41.7 C (107.1 F)
1911
42.8 C (109.0 F)
1912
39.4 C (102.9 F)
1913
31.7 C (89.1 F)
1914
40.0 C (104.0 F)
1915
36.1 C (97.0 F)
1916
40.0 C (104.0 F)
1917
41.1 C (106.0 F)
1918
42.8 C (109.0 F)
1919
40.6 C (105.1 F)
1920
41.7 C (107.1 F)
1921
40.6 C (105.1 F)
1922
40.6 C (105.1 F)
1923
40.0 C (104.0 F)
1924
41.1 C (106.0 F)
1925
41.7 C (107.1 F)
1926
41.7 C (107.1 F)
1927
38.3 C (100.9 F)
1928
38.3 C (100.9 F)
1929
42.2 C (108.0 F)
1930
43.3 C (109.9 F)
1931
42.8 C (109.0 F)
1932
40.0 C (104.0 F)
1933
45.0 C (113.0 F)
1934
46.7 C (116.1 F)
1935
43.3 C (109.9 F)
1936
45.6 C (114.1 F)
1937
43.3 C (109.9 F)
1938
42.2 C (108.0 F)
1939
41.7 C (107.1 F)
1940
43.3 C (109.9 F)
1941
37.8 C (100.0 F)
1942
39.4 C (102.9 F)
1943
43.9 C (111.0 F)
1944
41.1 C (106.0 F)
1945
41.1 C (106.0 F)
1946
42.2 C (108.0 F)
1947
42.2 C (108.0 F)
1948
40.6 C (105.1 F)
1949
38.9 C (102.0 F)
1950
40.0 C (104.0 F)
1951
38.3 C (100.9 F)
1952
42.8 C (109.0 F)
1953
43.3 C (109.9 F)
1954
42.8 C (109.0 F)
1955
40.0 C (104.0 F)
1956
42.8 C (109.0 F)
1957
38.3 C (100.9 F)
1958
37.8 C (100.0 F)
1959
39.4 C (102.9 F)
1960
40.6 C (105.1 F)
1961
37.2 C (99.0 F)
1962
40.0 C (104.0 F)
1963
40.0 C (104.0 F)
1964
41.7 C (107.1 F)
1965
38.3 C (100.9 F)
1966
41.7 C (107.1 F)
1967
38.3 C (100.9 F)
1968
41.1 C (106.0 F)
1969
40.6 C (105.1 F)
1970
42.2 C (108.0 F)
1971
40.6 C (105.1 F)
1972
38.9 C (102.0 F)
1973
41.1 C (106.0 F)
1974
42.8 C (109.0 F)
1975
40.0 C (104.0 F)
1976
41.1 C (106.0 F)
1977
41.1 C (106.0 F)
1978
41.7 C (107.1 F)
1979
39.4 C (102.9 F)
1980
42.2 C (108.0 F)
1981
39.4 C (102.9 F)
1982
38.3 C (100.9 F)
1984
n/a
1985
n/a
Coldest night (TNn)
The coldest night of the year at Jetmore, 1900 to 1985. The record is -31.1 C (-24.0 F) in 1918, marked on the chart; the median year is -22.8 C (-9.0 F).
Coldest night (TNn) at Jetmore by year
Year
Coldest night (TNn)
1900
-22.2 C (-8.0 F)
1901
-25.6 C (-14.1 F)
1902
-25.6 C (-14.1 F)
1903
-29.4 C (-20.9 F)
1904
-20.0 C (-4.0 F)
1905
-29.4 C (-20.9 F)
1906
-19.4 C (-2.9 F)
1907
-20.0 C (-4.0 F)
1908
-18.9 C (-2.0 F)
1909
-23.9 C (-11.0 F)
1910
-23.9 C (-11.0 F)
1911
-28.3 C (-18.9 F)
1912
-29.4 C (-20.9 F)
1913
-25.6 C (-14.1 F)
1914
-22.2 C (-8.0 F)
1915
-20.6 C (-5.1 F)
1916
-28.9 C (-20.0 F)
1917
-23.9 C (-11.0 F)
1918
-31.1 C (-24.0 F)
1919
-26.1 C (-15.0 F)
1920
-23.3 C (-9.9 F)
1921
-15.6 C (3.9 F)
1922
-22.8 C (-9.0 F)
1923
-17.8 C (0.0 F)
1924
-21.7 C (-7.1 F)
1925
-21.1 C (-6.0 F)
1926
-20.6 C (-5.1 F)
1927
-23.9 C (-11.0 F)
1928
-22.2 C (-8.0 F)
1929
-27.2 C (-17.0 F)
1930
-28.9 C (-20.0 F)
1931
-16.1 C (3.0 F)
1932
-25.0 C (-13.0 F)
1933
-29.4 C (-20.9 F)
1934
-17.8 C (0.0 F)
1935
-22.2 C (-8.0 F)
1936
-26.1 C (-15.0 F)
1937
-22.8 C (-9.0 F)
1938
-18.9 C (-2.0 F)
1939
-23.3 C (-9.9 F)
1940
-23.9 C (-11.0 F)
1941
-14.4 C (6.1 F)
1942
-27.2 C (-17.0 F)
1943
-27.8 C (-18.0 F)
1944
-20.0 C (-4.0 F)
1945
-20.6 C (-5.1 F)
1946
-17.8 C (0.0 F)
1947
-29.4 C (-20.9 F)
1948
-28.3 C (-18.9 F)
1949
-20.0 C (-4.0 F)
1950
-21.7 C (-7.1 F)
1951
-27.8 C (-18.0 F)
1952
-21.1 C (-6.0 F)
1953
-15.6 C (3.9 F)
1954
-19.4 C (-2.9 F)
1955
-17.8 C (0.0 F)
1956
-21.1 C (-6.0 F)
1957
-21.7 C (-7.1 F)
1958
-23.3 C (-9.9 F)
1959
-27.2 C (-17.0 F)
1960
-24.4 C (-11.9 F)
1961
-23.9 C (-11.0 F)
1962
-23.9 C (-11.0 F)
1963
-25.6 C (-14.1 F)
1964
-21.1 C (-6.0 F)
1965
-18.3 C (-0.9 F)
1966
-26.1 C (-15.0 F)
1967
-21.1 C (-6.0 F)
1968
-22.8 C (-9.0 F)
1969
-17.8 C (0.0 F)
1970
-21.1 C (-6.0 F)
1971
-23.3 C (-9.9 F)
1972
-24.4 C (-11.9 F)
1973
-18.9 C (-2.0 F)
1974
-26.1 C (-15.0 F)
1975
-18.3 C (-0.9 F)
1976
-22.2 C (-8.0 F)
1977
-22.8 C (-9.0 F)
1978
-25.6 C (-14.1 F)
1979
-27.2 C (-17.0 F)
1980
-22.8 C (-9.0 F)
1981
-22.2 C (-8.0 F)
1982
-26.7 C (-16.1 F)
1984
n/a
1985
n/a
Wettest day (Rx1day)
The wettest day of the year at Jetmore, 1900 to 1985. The record is 137.4 mm (5.4 in) in 1979, marked on the chart; the median year is 53.3 mm (2.1 in).
Wettest day (Rx1day) at Jetmore by year
Year
Wettest day (Rx1day)
1900
1.3 mm (0.05 in)
1901
41.1 mm (1.6 in)
1902
58.9 mm (2.3 in)
1903
39.4 mm (1.6 in)
1904
27.9 mm (1.1 in)
1905
41.9 mm (1.6 in)
1906
53.3 mm (2.1 in)
1907
55.9 mm (2.2 in)
1908
37.8 mm (1.5 in)
1909
108.0 mm (4.3 in)
1910
47.2 mm (1.9 in)
1911
54.6 mm (2.1 in)
1912
66.8 mm (2.6 in)
1913
48.3 mm (1.9 in)
1914
81.0 mm (3.2 in)
1915
44.5 mm (1.8 in)
1916
43.2 mm (1.7 in)
1917
38.9 mm (1.5 in)
1918
46.5 mm (1.8 in)
1919
30.5 mm (1.2 in)
1920
61.0 mm (2.4 in)
1921
105.4 mm (4.1 in)
1922
63.0 mm (2.5 in)
1923
51.8 mm (2.0 in)
1924
54.4 mm (2.1 in)
1925
41.4 mm (1.6 in)
1926
24.1 mm (0.9 in)
1927
44.5 mm (1.8 in)
1928
50.3 mm (2.0 in)
1929
73.7 mm (2.9 in)
1930
56.6 mm (2.2 in)
1931
48.3 mm (1.9 in)
1932
82.3 mm (3.2 in)
1933
71.9 mm (2.8 in)
1934
61.2 mm (2.4 in)
1935
48.8 mm (1.9 in)
1936
43.2 mm (1.7 in)
1937
25.1 mm (1.0 in)
1938
54.1 mm (2.1 in)
1939
34.0 mm (1.3 in)
1940
67.3 mm (2.6 in)
1941
47.5 mm (1.9 in)
1942
68.6 mm (2.7 in)
1943
90.7 mm (3.6 in)
1944
77.2 mm (3.0 in)
1945
62.2 mm (2.4 in)
1946
50.5 mm (2.0 in)
1947
39.6 mm (1.6 in)
1948
53.8 mm (2.1 in)
1949
65.3 mm (2.6 in)
1950
61.7 mm (2.4 in)
1951
47.0 mm (1.9 in)
1952
15.7 mm (0.6 in)
1953
91.2 mm (3.6 in)
1954
59.9 mm (2.4 in)
1955
62.0 mm (2.4 in)
1956
31.0 mm (1.2 in)
1957
50.0 mm (2.0 in)
1958
88.4 mm (3.5 in)
1959
40.6 mm (1.6 in)
1960
50.3 mm (2.0 in)
1961
54.6 mm (2.1 in)
1962
54.6 mm (2.1 in)
1963
50.8 mm (2.0 in)
1964
28.4 mm (1.1 in)
1965
60.2 mm (2.4 in)
1966
25.9 mm (1.0 in)
1967
70.9 mm (2.8 in)
1968
55.9 mm (2.2 in)
1969
56.1 mm (2.2 in)
1970
39.9 mm (1.6 in)
1971
43.2 mm (1.7 in)
1972
77.5 mm (3.1 in)
1973
70.1 mm (2.8 in)
1974
29.2 mm (1.1 in)
1975
31.8 mm (1.3 in)
1976
59.2 mm (2.3 in)
1977
55.9 mm (2.2 in)
1978
52.3 mm (2.1 in)
1979
137.4 mm (5.4 in)
1980
54.6 mm (2.1 in)
1981
130.6 mm (5.1 in)
1982
99.1 mm (3.9 in)
1984
16.3 mm (0.6 in)
1985
16.3 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Jetmore, 1900 to 1985. The record is 160.1 mm (6.3 in) in 1981, marked on the chart; the median year is 74.7 mm (2.9 in).
Wettest five days (Rx5day) at Jetmore by year
Year
Wettest five days (Rx5day)
1900
1.3 mm (0.05 in)
1901
66.0 mm (2.6 in)
1902
106.7 mm (4.2 in)
1903
45.8 mm (1.8 in)
1904
68.3 mm (2.7 in)
1905
57.1 mm (2.2 in)
1906
63.5 mm (2.5 in)
1907
103.1 mm (4.1 in)
1908
73.1 mm (2.9 in)
1909
128.8 mm (5.1 in)
1910
47.2 mm (1.9 in)
1911
77.0 mm (3.0 in)
1912
86.4 mm (3.4 in)
1913
60.0 mm (2.4 in)
1914
94.7 mm (3.7 in)
1915
79.0 mm (3.1 in)
1916
64.8 mm (2.6 in)
1917
56.6 mm (2.2 in)
1918
70.1 mm (2.8 in)
1919
54.6 mm (2.1 in)
1920
66.8 mm (2.6 in)
1921
111.2 mm (4.4 in)
1922
61.2 mm (2.4 in)
1923
82.1 mm (3.2 in)
1924
63.2 mm (2.5 in)
1925
65.3 mm (2.6 in)
1926
31.5 mm (1.2 in)
1927
51.6 mm (2.0 in)
1928
94.7 mm (3.7 in)
1929
78.8 mm (3.1 in)
1930
120.6 mm (4.7 in)
1931
42.4 mm (1.7 in)
1932
82.3 mm (3.2 in)
1933
123.5 mm (4.9 in)
1934
71.6 mm (2.8 in)
1935
70.4 mm (2.8 in)
1936
58.1 mm (2.3 in)
1937
57.6 mm (2.3 in)
1938
54.1 mm (2.1 in)
1939
34.0 mm (1.3 in)
1940
93.7 mm (3.7 in)
1941
70.4 mm (2.8 in)
1942
85.9 mm (3.4 in)
1943
90.7 mm (3.6 in)
1944
87.1 mm (3.4 in)
1945
81.5 mm (3.2 in)
1946
112.9 mm (4.4 in)
1947
68.9 mm (2.7 in)
1948
108.5 mm (4.3 in)
1949
85.9 mm (3.4 in)
1950
116.8 mm (4.6 in)
1951
98.8 mm (3.9 in)
1952
23.3 mm (0.9 in)
1953
102.6 mm (4.0 in)
1954
63.2 mm (2.5 in)
1955
111.2 mm (4.4 in)
1956
58.0 mm (2.3 in)
1957
111.3 mm (4.4 in)
1958
141.5 mm (5.6 in)
1959
88.1 mm (3.5 in)
1960
65.5 mm (2.6 in)
1961
127.4 mm (5.0 in)
1962
73.1 mm (2.9 in)
1963
50.8 mm (2.0 in)
1964
85.6 mm (3.4 in)
1965
70.1 mm (2.8 in)
1966
36.9 mm (1.5 in)
1967
76.2 mm (3.0 in)
1968
104.2 mm (4.1 in)
1969
63.5 mm (2.5 in)
1970
68.3 mm (2.7 in)
1971
63.5 mm (2.5 in)
1972
88.2 mm (3.5 in)
1973
104.7 mm (4.1 in)
1974
46.5 mm (1.8 in)
1975
72.7 mm (2.9 in)
1976
105.5 mm (4.2 in)
1977
81.3 mm (3.2 in)
1978
94.7 mm (3.7 in)
1979
158.0 mm (6.2 in)
1980
79.5 mm (3.1 in)
1981
160.1 mm (6.3 in)
1982
119.7 mm (4.7 in)
1984
n/a
1985
19.1 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Jetmore, 1900 to 1985. The record is 112 days in 1922, marked on the chart; the median year is 40 days.
Longest dry spell (CDD) at Jetmore by year
Year
Longest dry spell (CDD)
1900
29 days
1901
30 days
1902
33 days
1903
35 days
1904
64 days
1905
38 days
1906
40 days
1907
41 days
1908
35 days
1909
29 days
1910
56 days
1911
32 days
1912
34 days
1913
41 days
1914
47 days
1915
36 days
1916
32 days
1917
45 days
1918
28 days
1919
32 days
1920
43 days
1921
44 days
1922
112 days
1923
61 days
1924
36 days
1925
47 days
1926
41 days
1927
54 days
1928
38 days
1929
34 days
1930
46 days
1931
32 days
1932
21 days
1933
57 days
1934
25 days
1935
36 days
1936
52 days
1937
51 days
1938
58 days
1939
49 days
1940
31 days
1941
29 days
1942
43 days
1943
47 days
1944
33 days
1945
61 days
1946
52 days
1947
33 days
1948
35 days
1949
40 days
1950
87 days
1951
36 days
1952
55 days
1953
38 days
1954
51 days
1955
51 days
1956
62 days
1957
43 days
1958
38 days
1959
44 days
1960
34 days
1961
34 days
1962
40 days
1963
54 days
1964
34 days
1965
41 days
1966
51 days
1967
52 days
1968
51 days
1969
27 days
1970
50 days
1971
35 days
1972
40 days
1973
39 days
1974
66 days
1975
46 days
1976
44 days
1977
47 days
1978
37 days
1979
37 days
1980
39 days
1981
28 days
1982
31 days
1984
1 day
1985
31 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
64 years with a frost
Across 64 years with a frost, the median last spring frost at Jetmore falls on 28 April and the median first autumn frost on 13 October, which leaves a median of 168 days between them.
In 1948 to 1981 the median growing season was 174 days. That is 6 days more than in 1902 to 1943.
Fitted over all years, the growing season changes by +1.3 days per decade at this station.
Frost dates and growing season at Jetmore
Measure
Median, all years
Earliest period (1902 to 1943)
Recent period (1948 to 1981)
Recent against earliest
Fitted trend
Last spring frost
28 April
27 April
26 April
1 day earlier
-1.4 days per decade
First autumn frost
13 October
10 October
14 October
4 days later
-0.1 days per decade
Growing days
168 days
168 days
174 days
6 days more
+1.3 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
69 years, 1901 to 1981
A day with at least 52.6 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 130.8 mm (5.1 in) of rain is expected about once in 100 years.
Rainfall return levels at Jetmore: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
52.6 mm (2.1 in)
5 years
71.9 mm (2.8 in)
10 years
85.3 mm (3.4 in)
25 years
103.0 mm (4.1 in)
50 years
116.7 mm (4.6 in)
100 years
130.8 mm (5.1 in)
Longer than the 69 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, 69 years of values from 1901 to 1981.
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: 137.4 mm (5.4 in) in 1979; 130.6 mm (5.1 in) in 1981; 108.0 mm (4.3 in) in 1909.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Jetmore standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Jetmore 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.