Record envelope, standing records and threshold days for Conconully (USC00451666), Washington, United States, with 122 years of record.
Key Facts for Conconully
Conconully (USC00451666) is a weather station in Washington, United States at 48.56 latitude and -119.75 longitude, 704 m (2,309 ft) above sea level.
The station reports from 1894 to 2015, 122 years of record.
1,464 records set at Conconully still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Conconully set a daily record high maximum temperature of 14.4 C (57.9 F) on 14 November 2015.
About the Station
Location: Washington, United States, 48.56 latitude, -119.75 longitude.
Elevation: 704 m (2,309 ft).
Period of record: 1894 to 2015, 122 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 Conconully. 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 Conconully, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.1 C (61.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Feb
16.7 C (62.1 F)
-33.9 C (-29.0 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-27.2 C (-17.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-12.2 C (10.0 F)
n/a
n/a
May
35.6 C (96.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
37.8 C (100.0 F)
-1.1 C (30.0 F)
n/a
n/a
Jul
43.3 C (109.9 F)
0.6 C (33.1 F)
n/a
n/a
Aug
42.8 C (109.0 F)
-2.8 C (27.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
28.9 C (84.0 F)
-14.4 C (6.1 F)
n/a
n/a
Nov
18.9 C (66.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Dec
13.3 C (55.9 F)
-35.0 C (-31.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Conconully still stand. 1919 holds the most, with 38.
Standing records at Conconully by the year they were set
Year set
Standing records
1894
7
1895
2
1899
2
1900
21
1901
9
1902
8
1903
12
1904
19
1905
19
1906
22
1907
15
1908
10
1909
26
1910
20
1911
14
1912
9
1913
19
1914
8
1915
15
1916
22
1917
19
1918
12
1919
38
1920
14
1921
14
1922
17
1923
9
1924
24
1925
14
1926
24
1927
10
1928
7
1929
14
1930
10
1931
6
1932
15
1933
17
1934
22
1935
24
1936
36
1937
11
1938
15
1939
17
1940
6
1941
7
1942
5
1943
26
1944
6
1945
11
1946
4
1947
8
1948
10
1949
11
1950
29
1951
12
1952
4
1953
6
1954
14
1955
30
1956
11
1957
10
1958
20
1959
17
1960
17
1961
10
1962
17
1963
16
1964
2
1965
6
1966
12
1967
17
1968
24
1969
15
1970
16
1971
9
1972
7
1973
3
1974
6
1975
11
1976
6
1977
9
1978
4
1979
10
1980
9
1981
15
1982
7
1983
13
1984
6
1985
28
1986
12
1987
16
1988
20
1989
12
1990
10
1991
9
1992
26
1993
9
1994
9
1995
12
1996
8
1997
5
1998
17
1999
6
2000
2
2001
5
2002
17
2003
11
2005
2
2006
9
2007
6
2008
6
2011
2
2012
4
2013
3
2014
6
2015
10
All-Time Record Progression
5 new records
5 all-time records were set at Conconully between 19 January 1935 and 29 December 1968. Each dot is a new record.
When Conconully set new all-time records
Date
Kind
Detail
1935-01-19
Record low maximum temperature
Record low maximum temperature -22.8 C (-9.0 F)
1936-02-07
Record low minimum temperature
Record low minimum temperature -33.9 C (-29.0 F)
1938-07-21
Record high maximum temperature
Record high maximum temperature 43.3 C (109.9 F)
1968-12-28
Record low minimum temperature
Record low minimum temperature -35.0 C (-31.0 F)
1968-12-29
Record low maximum temperature
Record low maximum temperature -28.9 C (-20.0 F)
Wettest Day of Each Month
Jun: 77.2 mm (3.0 in)
The wettest day on record for each calendar month at Conconully. The most was 77.2 mm (3.0 in) on 14 June 1920.
Record daily precipitation for each month at Conconully
Month
Record daily precipitation (mm)
Date
Jan
49.5 mm (1.9 in)
8 January 1959
Feb
54.9 mm (2.2 in)
20 February 1956
Mar
38.1 mm (1.5 in)
13 March 2012
Apr
32.3 mm (1.3 in)
27 April 1953
May
49.3 mm (1.9 in)
29 May 1948
Jun
77.2 mm (3.0 in)
14 June 1920
Jul
50.8 mm (2.0 in)
5 July 1894
Aug
58.2 mm (2.3 in)
28 August 1951
Sep
51.3 mm (2.0 in)
23 September 1973
Oct
49.5 mm (1.9 in)
11 October 1904
Nov
41.7 mm (1.6 in)
4 November 1906
Dec
40.1 mm (1.6 in)
15 December 1900
Period of Record Coverage
1894 to 2015
Complete yearUnder 90 percent of days
116 years of record at Conconully, 1894 to 2015. 34 years have data for under 90 percent of days and are left out of rankings: 1894, 1895, 1899, 1914, 1920, 1931, 1940, 1946 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 69 complete years at Conconully, 1900 to 2014. Blue stripes are years cooler than the station's own mean of 7.1 C (44.8 F); red stripes are warmer. The coolest year was 1955, at 5.4 C (41.6 F), and the warmest was 1934, at 8.6 C (47.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Conconully as warming stripes, 1900 to 2014
Year
Annual mean temperature
Difference from the station mean
1900
8.2 C
+1.07 C
1901
7.2 C
+0.08 C
1902
6.7 C
-0.37 C
1903
6.4 C
-0.66 C
1904
7.8 C
+0.74 C
1905
7.2 C
+0.12 C
1906
7.9 C
+0.78 C
1907
6.6 C
-0.52 C
1908
7.5 C
+0.44 C
1909
6.3 C
-0.83 C
1911
6.6 C
-0.46 C
1912
7.5 C
+0.37 C
1913
6.5 C
-0.58 C
1915
7.5 C
+0.44 C
1917
6.2 C
-0.93 C
1918
7.0 C
-0.07 C
1919
5.8 C
-1.31 C
1921
6.5 C
-0.58 C
1922
5.5 C
-1.57 C
1923
6.9 C
-0.20 C
1924
7.0 C
-0.07 C
1925
7.9 C
+0.83 C
1926
8.1 C
+0.96 C
1927
6.1 C
-1.04 C
1928
7.5 C
+0.37 C
1929
6.0 C
-1.08 C
1932
6.3 C
-0.78 C
1933
6.5 C
-0.63 C
1934
8.6 C
+1.49 C
1935
6.5 C
-0.63 C
1936
6.5 C
-0.59 C
1937
6.4 C
-0.68 C
1938
7.8 C
+0.72 C
1939
8.0 C
+0.95 C
1941
8.0 C
+0.89 C
1942
7.1 C
+0.03 C
1943
6.4 C
-0.67 C
1944
7.3 C
+0.25 C
1948
5.6 C
-1.49 C
1949
6.4 C
-0.71 C
1950
5.9 C
-1.22 C
1951
6.1 C
-1.01 C
1952
7.4 C
+0.27 C
1953
8.1 C
+0.99 C
1954
6.6 C
-0.48 C
1955
5.4 C
-1.74 C
1956
6.5 C
-0.55 C
1957
6.7 C
-0.35 C
1960
7.4 C
+0.27 C
1968
8.1 C
+0.99 C
1969
7.1 C
-0.01 C
1970
7.7 C
+0.65 C
1974
7.8 C
+0.66 C
1975
6.3 C
-0.77 C
1977
7.4 C
+0.30 C
1978
7.4 C
+0.34 C
1979
7.8 C
+0.73 C
1980
7.4 C
+0.28 C
1981
8.2 C
+1.14 C
1982
7.4 C
+0.29 C
1983
7.9 C
+0.85 C
1985
6.3 C
-0.84 C
1986
8.2 C
+1.09 C
1989
8.1 C
+0.99 C
1990
8.1 C
+0.96 C
1991
8.2 C
+1.08 C
2012
7.5 C
+0.45 C
2013
7.0 C
-0.09 C
2014
7.9 C
+0.81 C
The annual mean temperature here has risen by 0.07 C (0.01 to 0.13) per decade over 1900 to 2014. In Fahrenheit: 0.13 F (0.02 to 0.24) per decade. The slope is a straight line fitted to 69 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Conconully
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.07 C (0.01 to 0.13) per decade
0.13 F (0.02 to 0.24) per decade
1900 to 2014
69
Rise
Mean daily maximum
0.01 C (-0.06 to 0.08) per decade
0.01 F (-0.11 to 0.14) per decade
1900 to 2014
69
Not clearly different from zero
Mean daily minimum
0.1 C (0.1 to 0.2) per decade
0.2 F (0.1 to 0.4) per decade
1900 to 2014
69
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
1894 to 2015
Yearly extremes at Conconully: 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)
1938
35.6 C (96.1 F)
116
Coldest night (TNn)
-35.0 C (-31.0 F)
1968
-23.3 C (-9.9 F)
116
Wettest day (Rx1day)
77.2 mm (3.0 in)
1920
26.6 mm (1.0 in)
116
Wettest five days (Rx5day)
116.3 mm (4.6 in)
1920
43.8 mm (1.7 in)
116
Longest dry spell (CDD)
108 days
1998
37 days
116
Hottest day (TXx)
The hottest day of the year at Conconully, 1894 to 2015. The record is 43.3 C (109.9 F) in 1938, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Conconully by year
Year
Hottest day (TXx)
1894
37.2 C (99.0 F)
1895
13.9 C (57.0 F)
1899
8.9 C (48.0 F)
1900
35.0 C (95.0 F)
1901
35.0 C (95.0 F)
1902
33.3 C (91.9 F)
1903
33.9 C (93.0 F)
1904
36.1 C (97.0 F)
1905
36.1 C (97.0 F)
1906
35.6 C (96.1 F)
1907
35.6 C (96.1 F)
1908
36.7 C (98.1 F)
1909
33.9 C (93.0 F)
1910
33.9 C (93.0 F)
1911
36.1 C (97.0 F)
1912
35.0 C (95.0 F)
1913
35.6 C (96.1 F)
1914
34.4 C (93.9 F)
1915
33.9 C (93.0 F)
1916
35.0 C (95.0 F)
1917
36.1 C (97.0 F)
1918
38.3 C (100.9 F)
1919
37.2 C (99.0 F)
1920
42.8 C (109.0 F)
1921
35.6 C (96.1 F)
1922
36.7 C (98.1 F)
1923
36.1 C (97.0 F)
1924
40.0 C (104.0 F)
1925
37.2 C (99.0 F)
1926
38.9 C (102.0 F)
1927
36.7 C (98.1 F)
1928
40.6 C (105.1 F)
1929
37.8 C (100.0 F)
1930
36.7 C (98.1 F)
1931
37.2 C (99.0 F)
1932
36.1 C (97.0 F)
1933
36.7 C (98.1 F)
1934
40.0 C (104.0 F)
1935
36.7 C (98.1 F)
1936
36.1 C (97.0 F)
1937
33.9 C (93.0 F)
1938
43.3 C (109.9 F)
1939
40.6 C (105.1 F)
1940
36.1 C (97.0 F)
1941
38.9 C (102.0 F)
1942
35.6 C (96.1 F)
1943
35.0 C (95.0 F)
1944
37.2 C (99.0 F)
1945
35.0 C (95.0 F)
1946
34.4 C (93.9 F)
1947
35.6 C (96.1 F)
1948
31.1 C (88.0 F)
1949
34.4 C (93.9 F)
1950
32.8 C (91.0 F)
1951
32.8 C (91.0 F)
1952
35.0 C (95.0 F)
1953
33.9 C (93.0 F)
1954
33.3 C (91.9 F)
1955
35.0 C (95.0 F)
1956
35.0 C (95.0 F)
1957
30.6 C (87.1 F)
1958
36.1 C (97.0 F)
1959
37.8 C (100.0 F)
1960
37.2 C (99.0 F)
1961
37.2 C (99.0 F)
1962
35.0 C (95.0 F)
1963
32.8 C (91.0 F)
1964
26.7 C (80.1 F)
1965
34.4 C (93.9 F)
1966
36.7 C (98.1 F)
1967
37.8 C (100.0 F)
1968
37.2 C (99.0 F)
1969
33.9 C (93.0 F)
1970
36.7 C (98.1 F)
1971
30.0 C (86.0 F)
1972
36.7 C (98.1 F)
1973
35.0 C (95.0 F)
1974
32.8 C (91.0 F)
1975
35.6 C (96.1 F)
1976
32.8 C (91.0 F)
1977
37.2 C (99.0 F)
1978
35.6 C (96.1 F)
1979
38.9 C (102.0 F)
1980
35.6 C (96.1 F)
1981
37.8 C (100.0 F)
1982
36.7 C (98.1 F)
1983
35.0 C (95.0 F)
1984
33.9 C (93.0 F)
1985
36.7 C (98.1 F)
1986
35.6 C (96.1 F)
1987
35.6 C (96.1 F)
1988
36.7 C (98.1 F)
1989
34.4 C (93.9 F)
1990
35.0 C (95.0 F)
1991
34.4 C (93.9 F)
1992
36.1 C (97.0 F)
1993
34.4 C (93.9 F)
1994
37.8 C (100.0 F)
1995
33.9 C (93.0 F)
1996
35.6 C (96.1 F)
1997
34.4 C (93.9 F)
1998
36.7 C (98.1 F)
1999
36.7 C (98.1 F)
2000
36.1 C (97.0 F)
2001
36.7 C (98.1 F)
2002
37.2 C (99.0 F)
2003
37.8 C (100.0 F)
2005
35.6 C (96.1 F)
2006
38.9 C (102.0 F)
2007
35.6 C (96.1 F)
2008
36.7 C (98.1 F)
2011
32.8 C (91.0 F)
2012
34.4 C (93.9 F)
2013
35.0 C (95.0 F)
2014
36.1 C (97.0 F)
2015
37.8 C (100.0 F)
Coldest night (TNn)
The coldest night of the year at Conconully, 1894 to 2015. The record is -35.0 C (-31.0 F) in 1968, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Conconully by year
Year
Coldest night (TNn)
1894
-14.4 C (6.1 F)
1895
-18.9 C (-2.0 F)
1899
-17.2 C (1.0 F)
1900
-23.9 C (-11.0 F)
1901
-23.3 C (-9.9 F)
1902
-25.0 C (-13.0 F)
1903
-20.6 C (-5.1 F)
1904
-23.9 C (-11.0 F)
1905
-23.9 C (-11.0 F)
1906
-19.4 C (-2.9 F)
1907
-29.4 C (-20.9 F)
1908
-23.3 C (-9.9 F)
1909
-31.7 C (-25.1 F)
1910
-22.2 C (-8.0 F)
1911
-29.4 C (-20.9 F)
1912
-24.4 C (-11.9 F)
1913
-23.3 C (-9.9 F)
1914
-25.6 C (-14.1 F)
1915
-21.7 C (-7.1 F)
1916
-32.2 C (-26.0 F)
1917
-28.3 C (-18.9 F)
1918
-22.2 C (-8.0 F)
1919
-27.8 C (-18.0 F)
1920
-20.0 C (-4.0 F)
1921
-20.6 C (-5.1 F)
1922
-26.7 C (-16.1 F)
1923
-30.6 C (-23.1 F)
1924
-28.9 C (-20.0 F)
1925
-17.8 C (0.0 F)
1926
-17.8 C (0.0 F)
1927
-27.8 C (-18.0 F)
1928
-17.8 C (0.0 F)
1929
-28.9 C (-20.0 F)
1930
-28.9 C (-20.0 F)
1931
-21.7 C (-7.1 F)
1932
-26.7 C (-16.1 F)
1933
-29.4 C (-20.9 F)
1934
-16.7 C (1.9 F)
1935
-30.0 C (-22.0 F)
1936
-33.9 C (-29.0 F)
1937
-26.7 C (-16.1 F)
1938
-18.3 C (-0.9 F)
1939
-25.0 C (-13.0 F)
1940
-16.1 C (3.0 F)
1941
-16.7 C (1.9 F)
1942
-21.1 C (-6.0 F)
1943
-31.1 C (-24.0 F)
1944
-17.8 C (0.0 F)
1945
-20.0 C (-4.0 F)
1946
-21.7 C (-7.1 F)
1947
-27.2 C (-17.0 F)
1948
-23.3 C (-9.9 F)
1949
-27.8 C (-18.0 F)
1950
-33.9 C (-29.0 F)
1951
-28.3 C (-18.9 F)
1952
-27.2 C (-17.0 F)
1953
-10.6 C (12.9 F)
1954
-27.2 C (-17.0 F)
1955
-27.2 C (-17.0 F)
1956
-30.0 C (-22.0 F)
1957
-30.6 C (-23.1 F)
1958
-17.8 C (0.0 F)
1959
-24.4 C (-11.9 F)
1960
-20.6 C (-5.1 F)
1961
-17.2 C (1.0 F)
1962
-28.3 C (-18.9 F)
1963
-23.3 C (-9.9 F)
1964
-15.0 C (5.0 F)
1965
-15.0 C (5.0 F)
1966
-14.4 C (6.1 F)
1967
-21.7 C (-7.1 F)
1968
-35.0 C (-31.0 F)
1969
-31.7 C (-25.1 F)
1970
-22.8 C (-9.0 F)
1971
-26.1 C (-15.0 F)
1972
-29.4 C (-20.9 F)
1973
-23.3 C (-9.9 F)
1974
-23.9 C (-11.0 F)
1975
-23.9 C (-11.0 F)
1976
-23.3 C (-9.9 F)
1977
-21.7 C (-7.1 F)
1978
-28.3 C (-18.9 F)
1979
-25.0 C (-13.0 F)
1980
-26.7 C (-16.1 F)
1981
-20.6 C (-5.1 F)
1982
-27.2 C (-17.0 F)
1983
-27.8 C (-18.0 F)
1984
-25.6 C (-14.1 F)
1985
-27.8 C (-18.0 F)
1986
-21.1 C (-6.0 F)
1987
-17.2 C (1.0 F)
1988
-23.3 C (-9.9 F)
1989
-26.1 C (-15.0 F)
1990
-30.0 C (-22.0 F)
1991
-22.2 C (-8.0 F)
1992
-22.2 C (-8.0 F)
1993
-23.3 C (-9.9 F)
1994
-17.8 C (0.0 F)
1995
-21.1 C (-6.0 F)
1996
-27.8 C (-18.0 F)
1997
-18.3 C (-0.9 F)
1998
-22.8 C (-9.0 F)
1999
-13.3 C (8.1 F)
2000
-3.9 C (25.0 F)
2001
-11.7 C (10.9 F)
2002
-17.8 C (0.0 F)
2003
-5.6 C (21.9 F)
2005
-2.8 C (27.0 F)
2006
-6.7 C (19.9 F)
2007
-2.2 C (28.0 F)
2008
-1.7 C (28.9 F)
2011
-11.7 C (10.9 F)
2012
-23.3 C (-9.9 F)
2013
-20.0 C (-4.0 F)
2014
-23.3 C (-9.9 F)
2015
-15.6 C (3.9 F)
Wettest day (Rx1day)
The wettest day of the year at Conconully, 1894 to 2015. The record is 77.2 mm (3.0 in) in 1920, marked on the chart; the median year is 26.6 mm (1.0 in).
Wettest day (Rx1day) at Conconully by year
Year
Wettest day (Rx1day)
1894
50.8 mm (2.0 in)
1895
7.6 mm (0.30 in)
1899
6.9 mm (0.27 in)
1900
40.1 mm (1.6 in)
1901
23.6 mm (0.9 in)
1902
50.8 mm (2.0 in)
1903
23.9 mm (0.9 in)
1904
49.5 mm (1.9 in)
1905
26.4 mm (1.0 in)
1906
46.0 mm (1.8 in)
1907
26.7 mm (1.1 in)
1908
26.2 mm (1.0 in)
1909
25.9 mm (1.0 in)
1910
25.9 mm (1.0 in)
1911
27.9 mm (1.1 in)
1912
29.2 mm (1.1 in)
1913
37.6 mm (1.5 in)
1914
36.8 mm (1.4 in)
1915
22.9 mm (0.9 in)
1916
27.4 mm (1.1 in)
1917
18.3 mm (0.7 in)
1918
38.1 mm (1.5 in)
1919
19.6 mm (0.8 in)
1920
77.2 mm (3.0 in)
1921
22.9 mm (0.9 in)
1922
31.8 mm (1.3 in)
1923
27.9 mm (1.1 in)
1924
18.8 mm (0.7 in)
1925
20.3 mm (0.8 in)
1926
24.6 mm (1.0 in)
1927
17.0 mm (0.7 in)
1928
18.8 mm (0.7 in)
1929
19.8 mm (0.8 in)
1930
19.3 mm (0.8 in)
1931
25.4 mm (1.0 in)
1932
20.3 mm (0.8 in)
1933
19.1 mm (0.8 in)
1934
19.3 mm (0.8 in)
1935
20.8 mm (0.8 in)
1936
57.9 mm (2.3 in)
1937
56.9 mm (2.2 in)
1938
28.7 mm (1.1 in)
1939
26.7 mm (1.1 in)
1940
29.5 mm (1.2 in)
1941
47.2 mm (1.9 in)
1942
20.8 mm (0.8 in)
1943
30.0 mm (1.2 in)
1944
26.7 mm (1.1 in)
1945
29.2 mm (1.1 in)
1946
22.9 mm (0.9 in)
1947
21.1 mm (0.8 in)
1948
49.3 mm (1.9 in)
1949
22.9 mm (0.9 in)
1950
28.4 mm (1.1 in)
1951
58.2 mm (2.3 in)
1952
26.2 mm (1.0 in)
1953
32.3 mm (1.3 in)
1954
26.9 mm (1.1 in)
1955
19.3 mm (0.8 in)
1956
54.9 mm (2.2 in)
1957
23.6 mm (0.9 in)
1958
30.0 mm (1.2 in)
1959
49.5 mm (1.9 in)
1960
22.9 mm (0.9 in)
1961
16.5 mm (0.6 in)
1962
26.9 mm (1.1 in)
1963
23.1 mm (0.9 in)
1964
10.4 mm (0.4 in)
1965
19.6 mm (0.8 in)
1966
36.3 mm (1.4 in)
1967
39.4 mm (1.6 in)
1968
27.9 mm (1.1 in)
1969
35.3 mm (1.4 in)
1970
25.9 mm (1.0 in)
1971
39.1 mm (1.5 in)
1972
36.3 mm (1.4 in)
1973
51.3 mm (2.0 in)
1974
32.3 mm (1.3 in)
1975
30.5 mm (1.2 in)
1976
26.4 mm (1.0 in)
1977
17.8 mm (0.7 in)
1978
28.4 mm (1.1 in)
1979
19.1 mm (0.8 in)
1980
19.1 mm (0.8 in)
1981
29.7 mm (1.2 in)
1982
40.6 mm (1.6 in)
1983
37.6 mm (1.5 in)
1984
27.7 mm (1.1 in)
1985
15.2 mm (0.6 in)
1986
15.0 mm (0.6 in)
1987
27.4 mm (1.1 in)
1988
21.3 mm (0.8 in)
1989
35.6 mm (1.4 in)
1990
21.6 mm (0.9 in)
1991
24.9 mm (1.0 in)
1992
39.9 mm (1.6 in)
1993
15.5 mm (0.6 in)
1994
29.2 mm (1.1 in)
1995
20.3 mm (0.8 in)
1996
19.8 mm (0.8 in)
1997
37.3 mm (1.5 in)
1998
41.9 mm (1.6 in)
1999
17.8 mm (0.7 in)
2000
15.7 mm (0.6 in)
2001
20.3 mm (0.8 in)
2002
16.3 mm (0.6 in)
2003
22.9 mm (0.9 in)
2005
18.3 mm (0.7 in)
2006
12.2 mm (0.5 in)
2007
20.8 mm (0.8 in)
2008
37.3 mm (1.5 in)
2011
15.5 mm (0.6 in)
2012
38.1 mm (1.5 in)
2013
36.6 mm (1.4 in)
2014
43.2 mm (1.7 in)
2015
29.2 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Conconully, 1894 to 2015. The record is 116.3 mm (4.6 in) in 1920, marked on the chart; the median year is 43.8 mm (1.7 in).
Wettest five days (Rx5day) at Conconully by year
Year
Wettest five days (Rx5day)
1894
53.3 mm (2.1 in)
1895
11.5 mm (0.5 in)
1899
15.5 mm (0.6 in)
1900
77.2 mm (3.0 in)
1901
49.0 mm (1.9 in)
1902
71.7 mm (2.8 in)
1903
50.1 mm (2.0 in)
1904
59.2 mm (2.3 in)
1905
44.0 mm (1.7 in)
1906
60.2 mm (2.4 in)
1907
43.7 mm (1.7 in)
1908
45.2 mm (1.8 in)
1909
51.5 mm (2.0 in)
1910
34.7 mm (1.4 in)
1911
59.7 mm (2.4 in)
1912
56.9 mm (2.2 in)
1913
51.1 mm (2.0 in)
1914
55.9 mm (2.2 in)
1915
36.4 mm (1.4 in)
1916
32.2 mm (1.3 in)
1917
33.8 mm (1.3 in)
1918
38.1 mm (1.5 in)
1919
39.9 mm (1.6 in)
1920
116.3 mm (4.6 in)
1921
41.6 mm (1.6 in)
1922
47.6 mm (1.9 in)
1923
35.8 mm (1.4 in)
1924
46.0 mm (1.8 in)
1925
21.3 mm (0.8 in)
1926
42.2 mm (1.7 in)
1927
34.3 mm (1.4 in)
1928
36.3 mm (1.4 in)
1929
28.5 mm (1.1 in)
1930
34.3 mm (1.4 in)
1931
38.7 mm (1.5 in)
1932
29.8 mm (1.2 in)
1933
64.6 mm (2.5 in)
1934
36.0 mm (1.4 in)
1935
26.9 mm (1.1 in)
1936
76.8 mm (3.0 in)
1937
48.0 mm (1.9 in)
1938
84.3 mm (3.3 in)
1939
65.8 mm (2.6 in)
1940
47.3 mm (1.9 in)
1941
75.6 mm (3.0 in)
1942
63.8 mm (2.5 in)
1943
42.2 mm (1.7 in)
1944
61.0 mm (2.4 in)
1945
61.0 mm (2.4 in)
1946
40.4 mm (1.6 in)
1947
47.0 mm (1.9 in)
1948
66.8 mm (2.6 in)
1949
36.7 mm (1.4 in)
1950
51.2 mm (2.0 in)
1951
87.3 mm (3.4 in)
1952
54.4 mm (2.1 in)
1953
40.4 mm (1.6 in)
1954
36.3 mm (1.4 in)
1955
31.5 mm (1.2 in)
1956
76.9 mm (3.0 in)
1957
58.6 mm (2.3 in)
1958
57.6 mm (2.3 in)
1959
81.0 mm (3.2 in)
1960
27.5 mm (1.1 in)
1961
36.6 mm (1.4 in)
1962
41.4 mm (1.6 in)
1963
31.2 mm (1.2 in)
1964
25.1 mm (1.0 in)
1965
30.0 mm (1.2 in)
1966
67.7 mm (2.7 in)
1967
56.5 mm (2.2 in)
1968
40.9 mm (1.6 in)
1969
63.0 mm (2.5 in)
1970
42.7 mm (1.7 in)
1971
67.1 mm (2.6 in)
1972
72.7 mm (2.9 in)
1973
76.2 mm (3.0 in)
1974
55.9 mm (2.2 in)
1975
38.4 mm (1.5 in)
1976
35.8 mm (1.4 in)
1977
37.0 mm (1.5 in)
1978
44.1 mm (1.7 in)
1979
36.9 mm (1.5 in)
1980
38.9 mm (1.5 in)
1981
50.3 mm (2.0 in)
1982
97.1 mm (3.8 in)
1983
69.3 mm (2.7 in)
1984
43.8 mm (1.7 in)
1985
23.6 mm (0.9 in)
1986
35.3 mm (1.4 in)
1987
36.3 mm (1.4 in)
1988
32.3 mm (1.3 in)
1989
58.0 mm (2.3 in)
1990
63.5 mm (2.5 in)
1991
40.4 mm (1.6 in)
1992
54.6 mm (2.1 in)
1993
25.5 mm (1.0 in)
1994
39.4 mm (1.6 in)
1995
52.1 mm (2.1 in)
1996
33.0 mm (1.3 in)
1997
46.2 mm (1.8 in)
1998
80.6 mm (3.2 in)
1999
35.6 mm (1.4 in)
2000
21.1 mm (0.8 in)
2001
23.8 mm (0.9 in)
2002
24.4 mm (1.0 in)
2003
36.1 mm (1.4 in)
2005
24.6 mm (1.0 in)
2006
35.3 mm (1.4 in)
2007
27.4 mm (1.1 in)
2008
45.0 mm (1.8 in)
2011
24.1 mm (0.9 in)
2012
77.5 mm (3.1 in)
2013
44.0 mm (1.7 in)
2014
52.3 mm (2.1 in)
2015
35.8 mm (1.4 in)
Longest dry spell (CDD)
The longest dry spell of the year at Conconully, 1894 to 2015. The record is 108 days in 1998, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at Conconully by year
Year
Longest dry spell (CDD)
1894
47 days
1895
39 days
1899
8 days
1900
33 days
1901
25 days
1902
31 days
1903
25 days
1904
40 days
1905
32 days
1906
36 days
1907
42 days
1908
37 days
1909
53 days
1910
45 days
1911
34 days
1912
32 days
1913
59 days
1914
33 days
1915
29 days
1916
55 days
1917
55 days
1918
43 days
1919
33 days
1920
34 days
1921
40 days
1922
61 days
1923
36 days
1924
37 days
1925
62 days
1926
28 days
1927
32 days
1928
21 days
1929
43 days
1930
27 days
1931
42 days
1932
45 days
1933
34 days
1934
54 days
1935
29 days
1936
42 days
1937
22 days
1938
37 days
1939
28 days
1940
45 days
1941
17 days
1942
59 days
1943
43 days
1944
40 days
1945
38 days
1946
45 days
1947
23 days
1948
26 days
1949
27 days
1950
48 days
1951
36 days
1952
64 days
1953
35 days
1954
32 days
1955
39 days
1956
41 days
1957
47 days
1958
29 days
1959
45 days
1960
33 days
1961
40 days
1962
29 days
1963
29 days
1964
25 days
1965
32 days
1966
22 days
1967
29 days
1968
47 days
1969
71 days
1970
48 days
1971
22 days
1972
33 days
1973
36 days
1974
50 days
1975
35 days
1976
36 days
1977
50 days
1978
41 days
1979
43 days
1980
26 days
1981
25 days
1982
28 days
1983
32 days
1984
30 days
1985
55 days
1986
43 days
1987
77 days
1988
50 days
1989
49 days
1990
33 days
1991
72 days
1992
53 days
1993
74 days
1994
34 days
1995
44 days
1996
47 days
1997
33 days
1998
108 days
1999
56 days
2000
40 days
2001
33 days
2002
42 days
2003
77 days
2005
24 days
2006
70 days
2007
30 days
2008
43 days
2011
36 days
2012
80 days
2013
30 days
2014
24 days
2015
43 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
69 years with a frost
Across 69 years with a frost, the median last spring frost at Conconully falls on 18 May and the median first autumn frost on 27 September, which leaves a median of 130 days between them.
In 1949 to 2014 the median growing season was 146 days. That is 27 days more than in 1900 to 1935.
Fitted over all years, the growing season changes by +5.1 days per decade at this station.
Frost dates and growing season at Conconully
Measure
Median, all years
Earliest period (1900 to 1935)
Recent period (1949 to 2014)
Recent against earliest
Fitted trend
Last spring frost
18 May
26 May
6 May
20 days earlier
-2.9 days per decade
First autumn frost
27 September
24 September
5 October
11 days later
+2.2 days per decade
Growing days
130 days
119 days
146 days
27 days more
+5.1 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
78 years, 1900 to 2014
A day with at least 27.4 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 74.2 mm (2.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Conconully: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
27.4 mm (1.1 in)
5 years
37.0 mm (1.5 in)
10 years
44.4 mm (1.7 in)
25 years
55.1 mm (2.2 in)
50 years
64.2 mm (2.5 in)
100 years
74.2 mm (2.9 in)
Longer than the 78 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, 78 years of values from 1900 to 2014.
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: 77.2 mm (3.0 in) in 1920; 58.2 mm (2.3 in) in 1951; 57.9 mm (2.3 in) in 1936.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Conconully standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Conconully 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.