Record envelope, standing records and threshold days for Colony (USC00481905), Wyoming, United States, with 112 years of record.
Key Facts for Colony
Colony (USC00481905) is a weather station in Wyoming, United States at 44.87 latitude and -104.16 longitude, 1,042 m (3,420 ft) above sea level.
The station reports from 1915 to 2026, 112 years of record.
1,464 records set at Colony still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Colony set a daily record precipitation of 36.1 mm (1.4 in) on 31 May 2026.
About the Station
Location: Wyoming, United States, 44.87 latitude, -104.16 longitude.
Elevation: 1,042 m (3,420 ft).
Period of record: 1915 to 2026, 112 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 Colony. 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 Colony, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.6 C (69.1 F)
-35.6 C (-32.1 F)
n/a
n/a
Feb
23.9 C (75.0 F)
-39.4 C (-38.9 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-28.9 C (-20.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-21.1 C (-6.0 F)
n/a
n/a
May
38.3 C (100.9 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
42.8 C (109.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
44.4 C (111.9 F)
2.2 C (36.0 F)
n/a
n/a
Aug
43.3 C (109.9 F)
2.8 C (37.0 F)
n/a
n/a
Sep
42.2 C (108.0 F)
-9.4 C (15.1 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-25.0 C (-13.0 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Dec
21.1 C (70.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Colony still stand. 1936 holds the most, with 47.
Standing records at Colony by the year they were set
Year set
Standing records
1915
21
1916
22
1917
26
1918
29
1919
29
1920
9
1921
14
1922
10
1923
4
1924
8
1925
20
1926
16
1927
15
1928
27
1929
20
1930
23
1931
30
1932
17
1933
11
1934
30
1935
22
1936
47
1937
11
1938
6
1939
24
1940
8
1941
11
1942
10
1943
18
1944
8
1945
13
1946
8
1947
14
1948
13
1949
15
1950
23
1951
16
1952
17
1953
15
1954
19
1955
21
1956
8
1957
6
1958
13
1959
15
1960
14
1961
4
1962
15
1963
15
1964
13
1965
19
1966
13
1967
8
1968
13
1969
14
1970
5
1971
5
1972
19
1973
15
1974
8
1975
7
1976
8
1977
9
1978
14
1979
10
1980
17
1981
9
1982
5
1983
17
1984
6
1985
25
1986
12
1987
12
1988
28
1989
23
1990
30
1991
17
1992
23
1993
8
1994
11
1995
18
1996
9
1997
14
1998
14
1999
11
2000
7
2001
4
2002
18
2003
15
2004
6
2005
19
2006
9
2007
9
2008
5
2009
7
2010
3
2011
7
2012
20
2021
13
2022
13
2023
10
All-Time Record Progression
4 new records
4 all-time records were set at Colony between 4 January 1949 and 29 June 1993. Each dot is a new record.
When Colony set new all-time records
Date
Kind
Detail
1949-01-04
Record daily snowfall
Record daily snowfall 76.2 cm (30.0 in)
1981-07-07
Record high maximum temperature
Record high maximum temperature 44.4 C (111.9 F)
1989-02-03
Record low maximum temperature
Record low maximum temperature -30.0 C (-22.0 F)
1993-06-29
Record daily precipitation
Record daily precipitation 92.7 mm (3.6 in)
Wettest Day of Each Month
Jun: 92.7 mm (3.6 in)
The wettest day on record for each calendar month at Colony. The most was 92.7 mm (3.6 in) on 29 June 1993.
Record daily precipitation for each month at Colony
Month
Record daily precipitation (mm)
Date
Jan
20.3 mm (0.8 in)
3 January 1996
Feb
24.4 mm (1.0 in)
16 February 2001
Mar
45.7 mm (1.8 in)
16 March 1946
Apr
49.5 mm (1.9 in)
6 April 1922
May
72.4 mm (2.9 in)
20 May 1982
Jun
92.7 mm (3.6 in)
29 June 1993
Jul
53.3 mm (2.1 in)
6 July 1994
Aug
57.2 mm (2.3 in)
17 August 1960
Sep
71.9 mm (2.8 in)
28 September 1923
Oct
55.9 mm (2.2 in)
6 October 1994
Nov
38.1 mm (1.5 in)
14 November 1944
Dec
28.4 mm (1.1 in)
16 December 2022
Period of Record Coverage
1915 to 2023
Complete yearUnder 90 percent of days
101 years of record at Colony, 1915 to 2023. 15 years have data for under 90 percent of days and are left out of rankings: 1937, 1996, 2000, 2001, 2002, 2003, 2006, 2007 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 83 complete years at Colony, 1915 to 2008. Blue stripes are years cooler than the station's own mean of 7.9 C (46.3 F); red stripes are warmer. The coolest year was 1917, at 6.1 C (43.0 F), and the warmest was 1988, at 10.1 C (50.2 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Colony as warming stripes, 1915 to 2008
Year
Annual mean temperature
Difference from the station mean
1915
6.9 C
-1.01 C
1916
6.2 C
-1.76 C
1917
6.1 C
-1.86 C
1918
7.6 C
-0.34 C
1919
7.4 C
-0.54 C
1920
7.0 C
-0.97 C
1921
9.0 C
+1.09 C
1922
6.8 C
-1.11 C
1923
7.9 C
-0.08 C
1924
6.2 C
-1.73 C
1925
8.3 C
+0.30 C
1926
8.2 C
+0.24 C
1927
6.3 C
-1.64 C
1928
7.4 C
-0.51 C
1929
6.3 C
-1.61 C
1930
8.0 C
+0.07 C
1931
9.9 C
+1.91 C
1932
7.5 C
-0.41 C
1933
8.8 C
+0.80 C
1934
9.8 C
+1.86 C
1935
7.9 C
-0.04 C
1936
7.2 C
-0.79 C
1938
9.0 C
+1.01 C
1939
9.0 C
+1.01 C
1940
8.5 C
+0.53 C
1941
8.9 C
+0.99 C
1942
8.1 C
+0.18 C
1943
8.5 C
+0.58 C
1944
7.3 C
-0.69 C
1945
7.3 C
-0.63 C
1946
8.8 C
+0.80 C
1947
7.7 C
-0.27 C
1948
7.9 C
-0.05 C
1949
7.6 C
-0.32 C
1950
6.3 C
-1.66 C
1951
6.2 C
-1.78 C
1952
8.8 C
+0.81 C
1954
8.4 C
+0.45 C
1955
7.0 C
-0.96 C
1956
8.1 C
+0.17 C
1957
7.1 C
-0.90 C
1958
8.1 C
+0.16 C
1959
7.5 C
-0.42 C
1960
8.1 C
+0.14 C
1961
8.7 C
+0.74 C
1962
8.2 C
+0.28 C
1963
9.1 C
+1.16 C
1964
7.6 C
-0.34 C
1965
7.2 C
-0.77 C
1966
7.4 C
-0.53 C
1967
7.7 C
-0.25 C
1968
7.6 C
-0.31 C
1969
7.7 C
-0.24 C
1970
7.5 C
-0.47 C
1971
7.3 C
-0.67 C
1972
7.0 C
-0.95 C
1973
8.2 C
+0.28 C
1974
8.6 C
+0.65 C
1975
7.3 C
-0.67 C
1976
8.6 C
+0.69 C
1977
8.4 C
+0.47 C
1979
7.5 C
-0.43 C
1980
8.7 C
+0.77 C
1981
9.7 C
+1.78 C
1982
7.1 C
-0.86 C
1983
8.4 C
+0.43 C
1984
8.2 C
+0.26 C
1985
7.3 C
-0.67 C
1986
8.9 C
+0.94 C
1987
10.0 C
+2.03 C
1988
10.1 C
+2.15 C
1989
7.5 C
-0.42 C
1990
9.1 C
+1.11 C
1991
9.2 C
+1.29 C
1992
9.0 C
+1.01 C
1993
6.3 C
-1.66 C
1994
8.5 C
+0.54 C
1995
8.2 C
+0.23 C
1997
8.3 C
+0.30 C
1998
8.8 C
+0.89 C
2004
8.2 C
+0.28 C
2005
8.5 C
+0.55 C
2008
7.3 C
-0.66 C
The annual mean temperature here has risen by 0.11 C (0.03 to 0.19) per decade over 1915 to 2008. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 83 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Colony
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.11 C (0.03 to 0.19) per decade
0.2 F (0.1 to 0.3) per decade
1915 to 2008
83
Rise
Mean daily maximum
0.11 C (0.02 to 0.21) per decade
0.20 F (0.03 to 0.37) per decade
1915 to 2008
83
Rise
Mean daily minimum
0.10 C (0.03 to 0.18) per decade
0.2 F (0.1 to 0.3) per decade
1915 to 2008
83
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
1915 to 2026
Yearly extremes at Colony: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.4 C (111.9 F)
1981
40.0 C (104.0 F)
101
Coldest night (TNn)
-39.4 C (-38.9 F)
1936
-28.9 C (-20.0 F)
101
Wettest day (Rx1day)
92.7 mm (3.6 in)
1993
35.9 mm (1.4 in)
104
Wettest five days (Rx5day)
132.3 mm (5.2 in)
1923
54.9 mm (2.2 in)
104
Longest dry spell (CDD)
93 days
1965
32 days
104
Hottest day (TXx)
The hottest day of the year at Colony, 1915 to 2026. The record is 44.4 C (111.9 F) in 1981, marked on the chart; the median year is 40.0 C (104.0 F).
Hottest day (TXx) at Colony by year
Year
Hottest day (TXx)
1915
37.2 C (99.0 F)
1916
39.4 C (102.9 F)
1917
42.2 C (108.0 F)
1918
38.9 C (102.0 F)
1919
41.7 C (107.1 F)
1920
38.3 C (100.9 F)
1921
41.1 C (106.0 F)
1922
36.1 C (97.0 F)
1923
37.2 C (99.0 F)
1924
37.2 C (99.0 F)
1925
39.4 C (102.9 F)
1926
40.6 C (105.1 F)
1927
36.1 C (97.0 F)
1928
38.9 C (102.0 F)
1929
40.0 C (104.0 F)
1930
40.6 C (105.1 F)
1931
43.9 C (111.0 F)
1932
37.2 C (99.0 F)
1933
41.7 C (107.1 F)
1934
41.7 C (107.1 F)
1935
43.3 C (109.9 F)
1936
43.3 C (109.9 F)
1937
41.1 C (106.0 F)
1938
39.4 C (102.9 F)
1939
39.4 C (102.9 F)
1940
41.1 C (106.0 F)
1941
40.6 C (105.1 F)
1942
38.3 C (100.9 F)
1943
39.4 C (102.9 F)
1944
37.8 C (100.0 F)
1945
38.3 C (100.9 F)
1946
38.9 C (102.0 F)
1947
40.0 C (104.0 F)
1948
39.4 C (102.9 F)
1949
40.6 C (105.1 F)
1950
35.0 C (95.0 F)
1951
39.4 C (102.9 F)
1952
41.1 C (106.0 F)
1953
35.6 C (96.1 F)
1954
40.6 C (105.1 F)
1955
37.8 C (100.0 F)
1956
37.8 C (100.0 F)
1957
38.9 C (102.0 F)
1958
37.2 C (99.0 F)
1959
38.9 C (102.0 F)
1960
40.0 C (104.0 F)
1961
40.0 C (104.0 F)
1962
36.1 C (97.0 F)
1963
37.2 C (99.0 F)
1964
38.9 C (102.0 F)
1965
40.0 C (104.0 F)
1966
41.1 C (106.0 F)
1967
36.7 C (98.1 F)
1968
36.1 C (97.0 F)
1969
40.6 C (105.1 F)
1970
40.0 C (104.0 F)
1971
37.8 C (100.0 F)
1972
37.2 C (99.0 F)
1973
41.1 C (106.0 F)
1974
38.9 C (102.0 F)
1975
41.7 C (107.1 F)
1976
38.9 C (102.0 F)
1977
41.7 C (107.1 F)
1978
42.2 C (108.0 F)
1979
40.6 C (105.1 F)
1980
40.0 C (104.0 F)
1981
44.4 C (111.9 F)
1982
40.6 C (105.1 F)
1983
42.2 C (108.0 F)
1984
38.9 C (102.0 F)
1985
41.7 C (107.1 F)
1986
40.6 C (105.1 F)
1987
40.0 C (104.0 F)
1988
42.8 C (109.0 F)
1989
42.2 C (108.0 F)
1990
41.1 C (106.0 F)
1991
40.0 C (104.0 F)
1992
40.0 C (104.0 F)
1993
33.3 C (91.9 F)
1994
38.3 C (100.9 F)
1995
40.6 C (105.1 F)
1996
38.3 C (100.9 F)
1997
37.2 C (99.0 F)
1998
37.8 C (100.0 F)
1999
37.2 C (99.0 F)
2000
40.0 C (104.0 F)
2001
40.0 C (104.0 F)
2002
42.8 C (109.0 F)
2003
41.1 C (106.0 F)
2004
37.8 C (100.0 F)
2005
41.7 C (107.1 F)
2006
42.2 C (108.0 F)
2007
40.6 C (105.1 F)
2008
38.3 C (100.9 F)
2009
34.4 C (93.9 F)
2010
40.6 C (105.1 F)
2011
37.8 C (100.0 F)
2012
41.1 C (106.0 F)
2021
42.2 C (108.0 F)
2022
40.0 C (104.0 F)
2023
27.8 C (82.0 F)
2024
n/a
2025
n/a
2026
n/a
Coldest night (TNn)
The coldest night of the year at Colony, 1915 to 2026. The record is -39.4 C (-38.9 F) in 1936, marked on the chart; the median year is -28.9 C (-20.0 F).
Coldest night (TNn) at Colony by year
Year
Coldest night (TNn)
1915
-29.4 C (-20.9 F)
1916
-35.6 C (-32.1 F)
1917
-34.4 C (-29.9 F)
1918
-34.4 C (-29.9 F)
1919
-31.7 C (-25.1 F)
1920
-27.2 C (-17.0 F)
1921
-26.1 C (-15.0 F)
1922
-30.6 C (-23.1 F)
1923
-31.7 C (-25.1 F)
1924
-35.0 C (-31.0 F)
1925
-30.0 C (-22.0 F)
1926
-27.2 C (-17.0 F)
1927
-31.1 C (-24.0 F)
1928
-32.8 C (-27.0 F)
1929
-30.6 C (-23.1 F)
1930
-34.4 C (-29.9 F)
1931
-22.2 C (-8.0 F)
1932
-31.1 C (-24.0 F)
1933
-33.9 C (-29.0 F)
1934
-27.8 C (-18.0 F)
1935
-29.4 C (-20.9 F)
1936
-39.4 C (-38.9 F)
1937
-27.2 C (-17.0 F)
1938
-27.8 C (-18.0 F)
1939
-31.7 C (-25.1 F)
1940
-29.4 C (-20.9 F)
1941
-23.3 C (-9.9 F)
1942
-29.4 C (-20.9 F)
1943
-32.8 C (-27.0 F)
1944
-26.7 C (-16.1 F)
1945
-27.2 C (-17.0 F)
1946
-28.9 C (-20.0 F)
1947
-27.8 C (-18.0 F)
1948
-26.1 C (-15.0 F)
1949
-33.3 C (-27.9 F)
1950
-31.7 C (-25.1 F)
1951
-31.1 C (-24.0 F)
1952
-31.1 C (-24.0 F)
1953
-26.1 C (-15.0 F)
1954
-32.2 C (-26.0 F)
1955
-26.7 C (-16.1 F)
1956
-27.2 C (-17.0 F)
1957
-31.1 C (-24.0 F)
1958
-26.7 C (-16.1 F)
1959
-28.3 C (-18.9 F)
1960
-27.2 C (-17.0 F)
1961
-26.1 C (-15.0 F)
1962
-30.0 C (-22.0 F)
1963
-32.8 C (-27.0 F)
1964
-33.9 C (-29.0 F)
1965
-28.9 C (-20.0 F)
1966
-30.6 C (-23.1 F)
1967
-28.9 C (-20.0 F)
1968
-32.8 C (-27.0 F)
1969
-28.9 C (-20.0 F)
1970
-26.1 C (-15.0 F)
1971
-29.4 C (-20.9 F)
1972
-30.6 C (-23.1 F)
1973
-28.9 C (-20.0 F)
1974
-28.3 C (-18.9 F)
1975
-26.7 C (-16.1 F)
1976
-28.3 C (-18.9 F)
1977
-30.6 C (-23.1 F)
1978
-30.6 C (-23.1 F)
1979
-32.2 C (-26.0 F)
1980
-28.9 C (-20.0 F)
1981
-28.9 C (-20.0 F)
1982
-30.0 C (-22.0 F)
1983
-35.0 C (-31.0 F)
1984
-27.2 C (-17.0 F)
1985
-30.6 C (-23.1 F)
1986
-24.4 C (-11.9 F)
1987
-20.0 C (-4.0 F)
1988
-27.2 C (-17.0 F)
1989
-37.8 C (-36.0 F)
1990
-35.6 C (-32.1 F)
1991
-25.6 C (-14.1 F)
1992
-26.1 C (-15.0 F)
1993
-28.9 C (-20.0 F)
1994
-29.4 C (-20.9 F)
1995
-26.1 C (-15.0 F)
1996
-32.8 C (-27.0 F)
1997
-30.0 C (-22.0 F)
1998
-28.3 C (-18.9 F)
1999
-20.6 C (-5.1 F)
2000
-26.1 C (-15.0 F)
2001
-23.3 C (-9.9 F)
2002
-22.8 C (-9.0 F)
2003
-25.0 C (-13.0 F)
2004
-24.4 C (-11.9 F)
2005
-25.0 C (-13.0 F)
2006
-26.7 C (-16.1 F)
2007
-23.3 C (-9.9 F)
2008
-28.9 C (-20.0 F)
2009
-24.4 C (-11.9 F)
2010
-25.0 C (-13.0 F)
2011
-27.8 C (-18.0 F)
2012
-21.7 C (-7.1 F)
2021
-24.4 C (-11.9 F)
2022
-31.1 C (-24.0 F)
2023
-32.2 C (-26.0 F)
2024
n/a
2025
n/a
2026
n/a
Wettest day (Rx1day)
The wettest day of the year at Colony, 1915 to 2026. The record is 92.7 mm (3.6 in) in 1993, marked on the chart; the median year is 35.9 mm (1.4 in).
Wettest day (Rx1day) at Colony by year
Year
Wettest day (Rx1day)
1915
50.8 mm (2.0 in)
1916
25.4 mm (1.0 in)
1917
33.0 mm (1.3 in)
1918
38.1 mm (1.5 in)
1919
31.8 mm (1.3 in)
1920
41.4 mm (1.6 in)
1921
27.4 mm (1.1 in)
1922
49.5 mm (1.9 in)
1923
71.9 mm (2.8 in)
1924
31.5 mm (1.2 in)
1925
35.1 mm (1.4 in)
1926
48.3 mm (1.9 in)
1927
32.5 mm (1.3 in)
1928
29.2 mm (1.1 in)
1929
63.0 mm (2.5 in)
1930
45.5 mm (1.8 in)
1931
24.9 mm (1.0 in)
1932
41.1 mm (1.6 in)
1933
47.0 mm (1.9 in)
1934
36.6 mm (1.4 in)
1935
29.0 mm (1.1 in)
1936
14.2 mm (0.6 in)
1937
40.6 mm (1.6 in)
1938
26.4 mm (1.0 in)
1939
22.1 mm (0.9 in)
1940
55.4 mm (2.2 in)
1941
48.3 mm (1.9 in)
1942
36.6 mm (1.4 in)
1943
24.1 mm (0.9 in)
1944
76.5 mm (3.0 in)
1945
36.8 mm (1.4 in)
1946
64.5 mm (2.5 in)
1947
40.1 mm (1.6 in)
1948
50.0 mm (2.0 in)
1949
41.4 mm (1.6 in)
1950
14.5 mm (0.6 in)
1951
30.5 mm (1.2 in)
1952
36.8 mm (1.4 in)
1953
33.0 mm (1.3 in)
1954
16.5 mm (0.6 in)
1955
36.1 mm (1.4 in)
1956
30.0 mm (1.2 in)
1957
26.7 mm (1.1 in)
1958
27.4 mm (1.1 in)
1959
34.3 mm (1.4 in)
1960
57.2 mm (2.3 in)
1961
26.7 mm (1.1 in)
1962
36.8 mm (1.4 in)
1963
26.4 mm (1.0 in)
1964
39.4 mm (1.6 in)
1965
29.5 mm (1.2 in)
1966
44.7 mm (1.8 in)
1967
22.9 mm (0.9 in)
1968
20.6 mm (0.8 in)
1969
20.8 mm (0.8 in)
1970
30.5 mm (1.2 in)
1971
47.5 mm (1.9 in)
1972
55.6 mm (2.2 in)
1973
35.6 mm (1.4 in)
1974
25.4 mm (1.0 in)
1975
36.3 mm (1.4 in)
1976
69.9 mm (2.8 in)
1977
34.5 mm (1.4 in)
1978
35.6 mm (1.4 in)
1979
18.8 mm (0.7 in)
1980
31.8 mm (1.3 in)
1981
47.5 mm (1.9 in)
1982
72.4 mm (2.9 in)
1983
38.6 mm (1.5 in)
1984
50.8 mm (2.0 in)
1985
23.4 mm (0.9 in)
1986
32.5 mm (1.3 in)
1987
29.2 mm (1.1 in)
1988
53.3 mm (2.1 in)
1989
33.0 mm (1.3 in)
1990
54.6 mm (2.1 in)
1991
38.9 mm (1.5 in)
1992
25.4 mm (1.0 in)
1993
92.7 mm (3.6 in)
1994
55.9 mm (2.2 in)
1995
48.3 mm (1.9 in)
1996
31.8 mm (1.3 in)
1997
63.5 mm (2.5 in)
1998
38.1 mm (1.5 in)
1999
30.5 mm (1.2 in)
2000
39.4 mm (1.6 in)
2001
33.0 mm (1.3 in)
2002
25.9 mm (1.0 in)
2003
30.0 mm (1.2 in)
2004
43.2 mm (1.7 in)
2005
21.6 mm (0.9 in)
2006
31.8 mm (1.3 in)
2007
22.9 mm (0.9 in)
2008
43.9 mm (1.7 in)
2009
63.5 mm (2.5 in)
2010
22.9 mm (0.9 in)
2011
24.1 mm (0.9 in)
2012
20.3 mm (0.8 in)
2021
41.9 mm (1.6 in)
2022
35.6 mm (1.4 in)
2023
49.8 mm (2.0 in)
2024
50.3 mm (2.0 in)
2025
39.4 mm (1.6 in)
2026
36.1 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Colony, 1915 to 2026. The record is 132.3 mm (5.2 in) in 1923, marked on the chart; the median year is 54.9 mm (2.2 in).
Wettest five days (Rx5day) at Colony by year
Year
Wettest five days (Rx5day)
1915
78.2 mm (3.1 in)
1916
50.9 mm (2.0 in)
1917
35.0 mm (1.4 in)
1918
69.9 mm (2.8 in)
1919
48.5 mm (1.9 in)
1920
80.8 mm (3.2 in)
1921
58.8 mm (2.3 in)
1922
74.5 mm (2.9 in)
1923
132.3 mm (5.2 in)
1924
53.6 mm (2.1 in)
1925
42.0 mm (1.7 in)
1926
75.7 mm (3.0 in)
1927
81.6 mm (3.2 in)
1928
47.3 mm (1.9 in)
1929
90.0 mm (3.5 in)
1930
57.7 mm (2.3 in)
1931
26.4 mm (1.0 in)
1932
84.8 mm (3.3 in)
1933
61.0 mm (2.4 in)
1934
42.9 mm (1.7 in)
1935
49.1 mm (1.9 in)
1936
28.2 mm (1.1 in)
1937
96.3 mm (3.8 in)
1938
38.1 mm (1.5 in)
1939
36.3 mm (1.4 in)
1940
66.4 mm (2.6 in)
1941
96.3 mm (3.8 in)
1942
88.2 mm (3.5 in)
1943
35.5 mm (1.4 in)
1944
118.1 mm (4.6 in)
1945
43.9 mm (1.7 in)
1946
80.5 mm (3.2 in)
1947
86.6 mm (3.4 in)
1948
72.4 mm (2.9 in)
1949
52.9 mm (2.1 in)
1950
26.4 mm (1.0 in)
1951
47.8 mm (1.9 in)
1952
62.7 mm (2.5 in)
1953
103.8 mm (4.1 in)
1954
30.0 mm (1.2 in)
1955
37.1 mm (1.5 in)
1956
59.2 mm (2.3 in)
1957
47.0 mm (1.9 in)
1958
39.1 mm (1.5 in)
1959
46.5 mm (1.8 in)
1960
57.2 mm (2.3 in)
1961
30.1 mm (1.2 in)
1962
88.8 mm (3.5 in)
1963
58.1 mm (2.3 in)
1964
61.5 mm (2.4 in)
1965
49.0 mm (1.9 in)
1966
45.2 mm (1.8 in)
1967
64.0 mm (2.5 in)
1968
40.2 mm (1.6 in)
1969
39.7 mm (1.6 in)
1970
47.3 mm (1.9 in)
1971
64.7 mm (2.5 in)
1972
63.0 mm (2.5 in)
1973
61.6 mm (2.4 in)
1974
38.9 mm (1.5 in)
1975
38.1 mm (1.5 in)
1976
118.4 mm (4.7 in)
1977
51.8 mm (2.0 in)
1978
75.0 mm (3.0 in)
1979
31.2 mm (1.2 in)
1980
48.6 mm (1.9 in)
1981
55.6 mm (2.2 in)
1982
88.9 mm (3.5 in)
1983
42.6 mm (1.7 in)
1984
81.8 mm (3.2 in)
1985
37.8 mm (1.5 in)
1986
52.3 mm (2.1 in)
1987
51.8 mm (2.0 in)
1988
53.3 mm (2.1 in)
1989
63.5 mm (2.5 in)
1990
88.1 mm (3.5 in)
1991
41.2 mm (1.6 in)
1992
40.4 mm (1.6 in)
1993
104.1 mm (4.1 in)
1994
68.0 mm (2.7 in)
1995
87.6 mm (3.4 in)
1996
96.5 mm (3.8 in)
1997
83.8 mm (3.3 in)
1998
68.6 mm (2.7 in)
1999
39.4 mm (1.6 in)
2000
55.9 mm (2.2 in)
2001
52.1 mm (2.1 in)
2002
26.7 mm (1.1 in)
2003
51.3 mm (2.0 in)
2004
46.5 mm (1.8 in)
2005
38.8 mm (1.5 in)
2006
56.7 mm (2.2 in)
2007
31.5 mm (1.2 in)
2008
76.7 mm (3.0 in)
2009
91.2 mm (3.6 in)
2010
26.6 mm (1.0 in)
2011
93.9 mm (3.7 in)
2012
24.9 mm (1.0 in)
2021
41.9 mm (1.6 in)
2022
54.1 mm (2.1 in)
2023
75.4 mm (3.0 in)
2024
60.3 mm (2.4 in)
2025
56.5 mm (2.2 in)
2026
41.3 mm (1.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Colony, 1915 to 2026. The record is 93 days in 1965, marked on the chart; the median year is 32 days.
Longest dry spell (CDD) at Colony by year
Year
Longest dry spell (CDD)
1915
39 days
1916
28 days
1917
44 days
1918
28 days
1919
32 days
1920
20 days
1921
48 days
1922
32 days
1923
29 days
1924
16 days
1925
44 days
1926
30 days
1927
34 days
1928
31 days
1929
21 days
1930
35 days
1931
31 days
1932
19 days
1933
30 days
1934
56 days
1935
39 days
1936
35 days
1937
28 days
1938
21 days
1939
43 days
1940
37 days
1941
26 days
1942
35 days
1943
46 days
1944
30 days
1945
30 days
1946
25 days
1947
24 days
1948
28 days
1949
24 days
1950
29 days
1951
30 days
1952
37 days
1953
28 days
1954
48 days
1955
26 days
1956
25 days
1957
37 days
1958
33 days
1959
57 days
1960
88 days
1961
30 days
1962
28 days
1963
35 days
1964
27 days
1965
93 days
1966
24 days
1967
31 days
1968
24 days
1969
29 days
1970
30 days
1971
24 days
1972
30 days
1973
38 days
1974
38 days
1975
31 days
1976
31 days
1977
38 days
1978
23 days
1979
36 days
1980
25 days
1981
52 days
1982
20 days
1983
49 days
1984
64 days
1985
36 days
1986
31 days
1987
46 days
1988
40 days
1989
26 days
1990
38 days
1991
32 days
1992
64 days
1993
26 days
1994
25 days
1995
58 days
1996
29 days
1997
56 days
1998
55 days
1999
52 days
2000
54 days
2001
46 days
2002
45 days
2003
36 days
2004
36 days
2005
26 days
2006
48 days
2007
41 days
2008
26 days
2009
37 days
2010
25 days
2011
30 days
2012
52 days
2021
33 days
2022
20 days
2023
41 days
2024
29 days
2025
33 days
2026
39 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
83 years with a frost
Across 83 years with a frost, the median last spring frost at Colony falls on 12 May and the median first autumn frost on 27 September, which leaves a median of 138 days between them.
In 1970 to 2008 the median growing season was 141 days. That is 3 days more than in 1915 to 1945.
Fitted over all years, the growing season changes by +1.2 days per decade at this station.
Frost dates and growing season at Colony
Measure
Median, all years
Earliest period (1915 to 1945)
Recent period (1970 to 2008)
Recent against earliest
Fitted trend
Last spring frost
12 May
14 May
10 May
4 days earlier
-0.9 days per decade
First autumn frost
27 September
27 September
30 September
3 days later
+0.3 days per decade
Growing days
138 days
138 days
141 days
3 days more
+1.2 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.
Rainfall Return Levels
94 years, 1915 to 2025
A day with at least 36.4 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 87.3 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Colony: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
36.4 mm (1.4 in)
5 years
49.5 mm (1.9 in)
10 years
58.4 mm (2.3 in)
25 years
69.8 mm (2.7 in)
50 years
78.5 mm (3.1 in)
100 years
87.3 mm (3.4 in)
Longer than the 94 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, 94 years of values from 1915 to 2025.
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: 92.7 mm (3.6 in) in 1993; 76.5 mm (3.0 in) in 1944; 72.4 mm (2.9 in) in 1982.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Colony, at 1997. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1997 ran 0.5 C (0.9 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Colony, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1997
-0.5
-0.9
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Colony standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Colony 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.