Record envelope, standing records and threshold days for Douglas 1 SE (USC00482685), Wyoming, United States, with 108 years of record.
Key Facts for Douglas 1 SE
Douglas 1 SE (USC00482685) is a weather station in Wyoming, United States at 42.75 latitude and -105.36 longitude, 1,484 m (4,870 ft) above sea level.
The station reports from 1909 to 2016, 108 years of record.
1,464 records set at Douglas 1 SE still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Douglas 1 SE set a daily record precipitation of 14.0 mm (0.6 in) on 23 March 2016.
About the Station
Location: Wyoming, United States, 42.75 latitude, -105.36 longitude.
Elevation: 1,484 m (4,870 ft).
Period of record: 1909 to 2016, 108 years.
Eligible elements: tmax, tmin, prcp, snow.
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 Douglas 1 SE. 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 Douglas 1 SE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
21.1 C (70.0 F)
-37.8 C (-36.0 F)
n/a
n/a
Feb
21.1 C (70.0 F)
-38.9 C (-38.0 F)
n/a
n/a
Mar
25.0 C (77.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-25.0 C (-13.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-10.6 C (12.9 F)
n/a
n/a
Jun
38.9 C (102.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
41.1 C (106.0 F)
1.1 C (34.0 F)
n/a
n/a
Aug
37.8 C (100.0 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-11.7 C (10.9 F)
n/a
n/a
Oct
30.0 C (86.0 F)
-21.7 C (-7.1 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-32.8 C (-27.0 F)
n/a
n/a
Dec
20.0 C (68.0 F)
-41.7 C (-43.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Douglas 1 SE still stand. 1909 holds the most, with 40.
Standing records at Douglas 1 SE by the year they were set
Year set
Standing records
1909
40
1910
6
1911
30
1912
20
1913
24
1914
11
1915
22
1916
29
1917
32
1918
31
1919
30
1920
25
1921
19
1922
19
1923
5
1924
17
1925
14
1926
12
1927
20
1928
12
1929
17
1930
22
1931
39
1932
28
1933
28
1934
34
1935
14
1936
39
1937
13
1938
14
1939
25
1940
14
1941
13
1942
15
1943
22
1944
11
1945
15
1946
17
1947
24
1948
17
1949
15
1950
29
1951
19
1952
27
1953
28
1954
37
1960
28
1961
9
1962
22
1995
13
1996
25
1997
21
1998
25
1999
15
2000
24
2001
10
2002
25
2003
24
2004
17
2005
19
2006
32
2007
20
2008
17
2009
8
2010
11
2011
5
2012
26
2013
20
2014
23
2015
26
2016
5
All-Time Record Progression
3 new records
3 all-time records were set at Douglas 1 SE between 13 April 1941 and 22 May 1997. Each dot is a new record.
When Douglas 1 SE set new all-time records
Date
Kind
Detail
1941-04-13
Record daily precipitation
Record daily precipitation 54.9 mm (2.2 in)
1945-04-13
Record daily snowfall
Record daily snowfall 55.9 cm (22.0 in)
1997-05-22
Record daily precipitation
Record daily precipitation 57.7 mm (2.3 in)
Wettest Day of Each Month
May: 57.7 mm (2.3 in)
The wettest day on record for each calendar month at Douglas 1 SE. The most was 57.7 mm (2.3 in) on 22 May 1997.
Record daily precipitation for each month at Douglas 1 SE
Month
Record daily precipitation (mm)
Date
Jan
32.0 mm (1.3 in)
4 January 1949
Feb
45.7 mm (1.8 in)
25 February 1998
Mar
44.2 mm (1.7 in)
18 March 2003
Apr
54.9 mm (2.2 in)
13 April 1941
May
57.7 mm (2.3 in)
22 May 1997
Jun
46.7 mm (1.8 in)
15 June 1911
Jul
51.3 mm (2.0 in)
2 July 1933
Aug
34.8 mm (1.4 in)
3 August 1998
Sep
45.7 mm (1.8 in)
26 September 1915
Oct
45.7 mm (1.8 in)
26 October 1996
Nov
17.8 mm (0.7 in)
14 November 1944
Dec
19.1 mm (0.8 in)
24 December 1945
Period of Record Coverage
1909 to 2016
Complete yearUnder 90 percent of days
71 years of record at Douglas 1 SE, 1909 to 2016. 18 years have data for under 90 percent of days and are left out of rankings: 1909, 1910, 1912, 1923, 1924, 1954, 1960, 1962 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 55 complete years at Douglas 1 SE, 1911 to 2013. Blue stripes are years cooler than the station's own mean of 7.8 C (46.0 F); red stripes are warmer. The coolest year was 1920, at 6.0 C (42.7 F), and the warmest was 1934, at 10.6 C (51.1 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Douglas 1 SE as warming stripes, 1911 to 2013
Year
Annual mean temperature
Difference from the station mean
1911
7.1 C
-0.66 C
1913
6.1 C
-1.74 C
1914
7.7 C
-0.06 C
1915
6.5 C
-1.29 C
1916
6.3 C
-1.45 C
1917
6.2 C
-1.62 C
1918
6.6 C
-1.20 C
1919
7.0 C
-0.78 C
1920
6.0 C
-1.84 C
1921
8.3 C
+0.50 C
1922
6.6 C
-1.22 C
1925
8.3 C
+0.49 C
1926
8.1 C
+0.31 C
1927
7.3 C
-0.50 C
1928
7.3 C
-0.49 C
1929
6.6 C
-1.19 C
1931
9.7 C
+1.88 C
1932
8.1 C
+0.27 C
1933
10.0 C
+2.18 C
1934
10.6 C
+2.81 C
1935
8.3 C
+0.47 C
1936
7.9 C
+0.15 C
1937
7.4 C
-0.38 C
1938
8.2 C
+0.43 C
1939
8.6 C
+0.85 C
1940
8.8 C
+1.00 C
1941
8.2 C
+0.41 C
1942
7.4 C
-0.40 C
1943
8.2 C
+0.44 C
1944
6.6 C
-1.24 C
1945
7.0 C
-0.82 C
1946
8.4 C
+0.60 C
1947
7.5 C
-0.33 C
1948
7.4 C
-0.37 C
1949
7.3 C
-0.51 C
1950
7.5 C
-0.29 C
1951
7.1 C
-0.68 C
1952
8.2 C
+0.38 C
1953
9.0 C
+1.21 C
1961
7.4 C
-0.35 C
1996
7.7 C
-0.10 C
1997
7.7 C
-0.08 C
1998
8.6 C
+0.79 C
1999
9.1 C
+1.27 C
2002
8.0 C
+0.17 C
2003
8.5 C
+0.66 C
2004
7.9 C
+0.12 C
2005
8.4 C
+0.59 C
2006
8.5 C
+0.70 C
2007
8.1 C
+0.30 C
2008
7.1 C
-0.69 C
2010
7.8 C
-0.03 C
2011
7.5 C
-0.34 C
2012
9.7 C
+1.86 C
2013
7.5 C
-0.30 C
The annual mean temperature here has risen by 0.09 C (0.01 to 0.16) per decade over 1911 to 2013. In Fahrenheit: 0.15 F (0.02 to 0.29) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Douglas 1 SE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.09 C (0.01 to 0.16) per decade
0.15 F (0.02 to 0.29) per decade
1911 to 2013
55
Rise
Mean daily maximum
0.12 C (0.03 to 0.20) per decade
0.21 F (0.05 to 0.37) per decade
1911 to 2013
55
Rise
Mean daily minimum
0.05 C (-0.03 to 0.14) per decade
0.1 F (-0.1 to 0.2) per decade
1911 to 2013
55
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
1909 to 2016
Yearly extremes at Douglas 1 SE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
1931
36.1 C (97.0 F)
71
Coldest night (TNn)
-41.7 C (-43.1 F)
1919
-31.1 C (-24.0 F)
71
Wettest day (Rx1day)
57.7 mm (2.3 in)
1997
30.5 mm (1.2 in)
71
Wettest five days (Rx5day)
120.4 mm (4.7 in)
1997
44.8 mm (1.8 in)
71
Longest dry spell (CDD)
58 days
1917
31 days
71
Hottest day (TXx)
The hottest day of the year at Douglas 1 SE, 1909 to 2016. The record is 41.1 C (106.0 F) in 1931, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Douglas 1 SE by year
Year
Hottest day (TXx)
1909
38.3 C (100.9 F)
1910
28.9 C (84.0 F)
1911
37.2 C (99.0 F)
1912
33.9 C (93.0 F)
1913
36.1 C (97.0 F)
1914
36.7 C (98.1 F)
1915
34.4 C (93.9 F)
1916
37.2 C (99.0 F)
1917
36.1 C (97.0 F)
1918
36.7 C (98.1 F)
1919
38.9 C (102.0 F)
1920
36.1 C (97.0 F)
1921
35.6 C (96.1 F)
1922
36.1 C (97.0 F)
1923
22.8 C (73.0 F)
1924
28.9 C (84.0 F)
1925
38.3 C (100.9 F)
1926
36.1 C (97.0 F)
1927
33.9 C (93.0 F)
1928
34.4 C (93.9 F)
1929
36.1 C (97.0 F)
1930
37.8 C (100.0 F)
1931
41.1 C (106.0 F)
1932
36.7 C (98.1 F)
1933
38.3 C (100.9 F)
1934
38.9 C (102.0 F)
1935
37.8 C (100.0 F)
1936
37.8 C (100.0 F)
1937
35.6 C (96.1 F)
1938
33.9 C (93.0 F)
1939
37.8 C (100.0 F)
1940
36.1 C (97.0 F)
1941
35.6 C (96.1 F)
1942
35.0 C (95.0 F)
1943
35.0 C (95.0 F)
1944
35.0 C (95.0 F)
1945
33.9 C (93.0 F)
1946
35.0 C (95.0 F)
1947
35.6 C (96.1 F)
1948
34.4 C (93.9 F)
1949
34.4 C (93.9 F)
1950
35.0 C (95.0 F)
1951
36.7 C (98.1 F)
1952
37.8 C (100.0 F)
1953
38.9 C (102.0 F)
1954
40.6 C (105.1 F)
1960
38.3 C (100.9 F)
1961
36.1 C (97.0 F)
1962
35.6 C (96.1 F)
1995
36.7 C (98.1 F)
1996
37.2 C (99.0 F)
1997
36.7 C (98.1 F)
1998
37.2 C (99.0 F)
1999
35.0 C (95.0 F)
2000
36.7 C (98.1 F)
2001
36.1 C (97.0 F)
2002
37.2 C (99.0 F)
2003
38.3 C (100.9 F)
2004
35.0 C (95.0 F)
2005
38.3 C (100.9 F)
2006
39.4 C (102.9 F)
2007
37.2 C (99.0 F)
2008
37.2 C (99.0 F)
2009
34.4 C (93.9 F)
2010
36.7 C (98.1 F)
2011
35.6 C (96.1 F)
2012
37.8 C (100.0 F)
2013
36.1 C (97.0 F)
2014
36.1 C (97.0 F)
2015
36.7 C (98.1 F)
2016
22.2 C (72.0 F)
Coldest night (TNn)
The coldest night of the year at Douglas 1 SE, 1909 to 2016. The record is -41.7 C (-43.1 F) in 1919, marked on the chart; the median year is -31.1 C (-24.0 F).
Coldest night (TNn) at Douglas 1 SE by year
Year
Coldest night (TNn)
1909
-27.2 C (-17.0 F)
1910
-31.7 C (-25.1 F)
1911
-30.0 C (-22.0 F)
1912
-32.8 C (-27.0 F)
1913
-37.8 C (-36.0 F)
1914
-32.2 C (-26.0 F)
1915
-33.9 C (-29.0 F)
1916
-32.8 C (-27.0 F)
1917
-33.3 C (-27.9 F)
1918
-33.3 C (-27.9 F)
1919
-41.7 C (-43.1 F)
1920
-33.9 C (-29.0 F)
1921
-29.4 C (-20.9 F)
1922
-33.3 C (-27.9 F)
1923
-34.4 C (-29.9 F)
1924
-32.8 C (-27.0 F)
1925
-27.8 C (-18.0 F)
1926
-28.3 C (-18.9 F)
1927
-33.9 C (-29.0 F)
1928
-28.3 C (-18.9 F)
1929
-28.9 C (-20.0 F)
1930
-36.7 C (-34.1 F)
1931
-24.4 C (-11.9 F)
1932
-32.8 C (-27.0 F)
1933
-35.0 C (-31.0 F)
1934
-32.8 C (-27.0 F)
1935
-33.9 C (-29.0 F)
1936
-38.9 C (-38.0 F)
1937
-28.9 C (-20.0 F)
1938
-27.2 C (-17.0 F)
1939
-27.2 C (-17.0 F)
1940
-28.3 C (-18.9 F)
1941
-28.9 C (-20.0 F)
1942
-35.0 C (-31.0 F)
1943
-31.7 C (-25.1 F)
1944
-31.1 C (-24.0 F)
1945
-27.2 C (-17.0 F)
1946
-23.3 C (-9.9 F)
1947
-27.2 C (-17.0 F)
1948
-31.7 C (-25.1 F)
1949
-30.6 C (-23.1 F)
1950
-31.7 C (-25.1 F)
1951
-35.6 C (-32.1 F)
1952
-30.6 C (-23.1 F)
1953
-23.3 C (-9.9 F)
1954
-25.6 C (-14.1 F)
1960
-31.1 C (-24.0 F)
1961
-29.4 C (-20.9 F)
1962
-34.4 C (-29.9 F)
1995
-25.0 C (-13.0 F)
1996
-35.0 C (-31.0 F)
1997
-27.8 C (-18.0 F)
1998
-33.9 C (-29.0 F)
1999
-26.7 C (-16.1 F)
2000
-24.4 C (-11.9 F)
2001
-31.7 C (-25.1 F)
2002
-23.9 C (-11.0 F)
2003
-35.6 C (-32.1 F)
2004
-27.8 C (-18.0 F)
2005
-30.6 C (-23.1 F)
2006
-37.8 C (-36.0 F)
2007
-30.6 C (-23.1 F)
2008
-28.9 C (-20.0 F)
2009
-36.1 C (-33.0 F)
2010
-32.2 C (-26.0 F)
2011
-33.9 C (-29.0 F)
2012
-25.0 C (-13.0 F)
2013
-28.9 C (-20.0 F)
2014
-32.8 C (-27.0 F)
2015
-27.8 C (-18.0 F)
2016
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Douglas 1 SE, 1909 to 2016. The record is 57.7 mm (2.3 in) in 1997, marked on the chart; the median year is 30.5 mm (1.2 in).
Wettest day (Rx1day) at Douglas 1 SE by year
Year
Wettest day (Rx1day)
1909
29.2 mm (1.1 in)
1910
11.2 mm (0.4 in)
1911
46.7 mm (1.8 in)
1912
34.5 mm (1.4 in)
1913
15.2 mm (0.6 in)
1914
26.9 mm (1.1 in)
1915
45.7 mm (1.8 in)
1916
12.2 mm (0.5 in)
1917
23.1 mm (0.9 in)
1918
24.4 mm (1.0 in)
1919
24.4 mm (1.0 in)
1920
25.9 mm (1.0 in)
1921
38.1 mm (1.5 in)
1922
34.5 mm (1.4 in)
1923
8.4 mm (0.33 in)
1924
39.1 mm (1.5 in)
1925
47.2 mm (1.9 in)
1926
31.2 mm (1.2 in)
1927
43.9 mm (1.7 in)
1928
31.2 mm (1.2 in)
1929
32.0 mm (1.3 in)
1930
33.8 mm (1.3 in)
1931
24.9 mm (1.0 in)
1932
38.1 mm (1.5 in)
1933
51.3 mm (2.0 in)
1934
18.3 mm (0.7 in)
1935
13.7 mm (0.5 in)
1936
37.1 mm (1.5 in)
1937
41.1 mm (1.6 in)
1938
44.2 mm (1.7 in)
1939
19.8 mm (0.8 in)
1940
19.6 mm (0.8 in)
1941
54.9 mm (2.2 in)
1942
33.3 mm (1.3 in)
1943
31.5 mm (1.2 in)
1944
26.4 mm (1.0 in)
1945
46.5 mm (1.8 in)
1946
42.7 mm (1.7 in)
1947
33.3 mm (1.3 in)
1948
24.6 mm (1.0 in)
1949
32.0 mm (1.3 in)
1950
19.3 mm (0.8 in)
1951
28.4 mm (1.1 in)
1952
26.9 mm (1.1 in)
1953
13.7 mm (0.5 in)
1954
20.8 mm (0.8 in)
1960
40.1 mm (1.6 in)
1961
30.0 mm (1.2 in)
1962
44.2 mm (1.7 in)
1995
25.4 mm (1.0 in)
1996
45.7 mm (1.8 in)
1997
57.7 mm (2.3 in)
1998
45.7 mm (1.8 in)
1999
34.3 mm (1.4 in)
2000
31.5 mm (1.2 in)
2001
23.9 mm (0.9 in)
2002
25.9 mm (1.0 in)
2003
44.2 mm (1.7 in)
2004
16.5 mm (0.6 in)
2005
24.4 mm (1.0 in)
2006
20.3 mm (0.8 in)
2007
45.7 mm (1.8 in)
2008
46.5 mm (1.8 in)
2009
30.5 mm (1.2 in)
2010
29.2 mm (1.1 in)
2011
29.2 mm (1.1 in)
2012
11.9 mm (0.5 in)
2013
14.5 mm (0.6 in)
2014
20.3 mm (0.8 in)
2015
34.0 mm (1.3 in)
2016
23.4 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Douglas 1 SE, 1909 to 2016. The record is 120.4 mm (4.7 in) in 1997, marked on the chart; the median year is 44.8 mm (1.8 in).
Wettest five days (Rx5day) at Douglas 1 SE by year
Year
Wettest five days (Rx5day)
1909
40.9 mm (1.6 in)
1910
16.0 mm (0.6 in)
1911
50.0 mm (2.0 in)
1912
61.0 mm (2.4 in)
1913
29.0 mm (1.1 in)
1914
37.5 mm (1.5 in)
1915
80.0 mm (3.1 in)
1916
21.8 mm (0.9 in)
1917
43.7 mm (1.7 in)
1918
28.7 mm (1.1 in)
1919
40.2 mm (1.6 in)
1920
36.0 mm (1.4 in)
1921
65.5 mm (2.6 in)
1922
53.2 mm (2.1 in)
1923
18.6 mm (0.7 in)
1924
49.5 mm (1.9 in)
1925
66.2 mm (2.6 in)
1926
69.1 mm (2.7 in)
1927
70.1 mm (2.8 in)
1928
53.6 mm (2.1 in)
1929
63.7 mm (2.5 in)
1930
49.3 mm (1.9 in)
1931
46.2 mm (1.8 in)
1932
57.4 mm (2.3 in)
1933
51.3 mm (2.0 in)
1934
28.2 mm (1.1 in)
1935
33.8 mm (1.3 in)
1936
44.8 mm (1.8 in)
1937
55.8 mm (2.2 in)
1938
52.6 mm (2.1 in)
1939
32.8 mm (1.3 in)
1940
27.4 mm (1.1 in)
1941
73.7 mm (2.9 in)
1942
58.7 mm (2.3 in)
1943
39.1 mm (1.5 in)
1944
50.3 mm (2.0 in)
1945
60.2 mm (2.4 in)
1946
60.6 mm (2.4 in)
1947
43.2 mm (1.7 in)
1948
40.3 mm (1.6 in)
1949
44.0 mm (1.7 in)
1950
28.7 mm (1.1 in)
1951
36.7 mm (1.4 in)
1952
35.6 mm (1.4 in)
1953
27.7 mm (1.1 in)
1954
25.6 mm (1.0 in)
1960
43.4 mm (1.7 in)
1961
44.5 mm (1.8 in)
1962
70.7 mm (2.8 in)
1995
45.4 mm (1.8 in)
1996
64.3 mm (2.5 in)
1997
120.4 mm (4.7 in)
1998
61.7 mm (2.4 in)
1999
54.8 mm (2.2 in)
2000
54.8 mm (2.2 in)
2001
42.8 mm (1.7 in)
2002
36.6 mm (1.4 in)
2003
66.3 mm (2.6 in)
2004
43.4 mm (1.7 in)
2005
34.0 mm (1.3 in)
2006
27.2 mm (1.1 in)
2007
82.5 mm (3.2 in)
2008
107.7 mm (4.2 in)
2009
40.0 mm (1.6 in)
2010
59.5 mm (2.3 in)
2011
45.7 mm (1.8 in)
2012
18.0 mm (0.7 in)
2013
28.0 mm (1.1 in)
2014
33.3 mm (1.3 in)
2015
65.3 mm (2.6 in)
2016
29.5 mm (1.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Douglas 1 SE, 1909 to 2016. The record is 58 days in 1917, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Douglas 1 SE by year
Year
Longest dry spell (CDD)
1909
23 days
1910
23 days
1911
32 days
1912
50 days
1913
26 days
1914
31 days
1915
25 days
1916
34 days
1917
58 days
1918
25 days
1919
32 days
1920
40 days
1921
39 days
1922
57 days
1923
30 days
1924
20 days
1925
29 days
1926
20 days
1927
23 days
1928
27 days
1929
35 days
1930
34 days
1931
34 days
1932
24 days
1933
52 days
1934
30 days
1935
48 days
1936
31 days
1937
41 days
1938
26 days
1939
54 days
1940
27 days
1941
22 days
1942
29 days
1943
36 days
1944
30 days
1945
22 days
1946
27 days
1947
31 days
1948
34 days
1949
25 days
1950
30 days
1951
35 days
1952
33 days
1953
30 days
1954
24 days
1960
42 days
1961
34 days
1962
26 days
1995
22 days
1996
23 days
1997
21 days
1998
32 days
1999
30 days
2000
38 days
2001
34 days
2002
33 days
2003
29 days
2004
30 days
2005
39 days
2006
51 days
2007
30 days
2008
21 days
2009
31 days
2010
35 days
2011
21 days
2012
43 days
2013
40 days
2014
37 days
2015
35 days
2016
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
55 years with a frost
Across 55 years with a frost, the median last spring frost at Douglas 1 SE falls on 18 May and the median first autumn frost on 17 September, which leaves a median of 123 days between them.
Fitted over all years, the growing season changes by +0.5 days per decade at this station.
Frost dates and growing season at Douglas 1 SE
Measure
Median, all years
Earliest period
Recent period (1940 to 2013)
Recent against earliest
Fitted trend
Last spring frost
18 May
n/a
20 May
n/a
-0.2 days per decade
First autumn frost
17 September
n/a
14 September
n/a
+0.3 days per decade
Growing days
123 days
n/a
123 days
n/a
+0.5 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
59 years, 1911 to 2015
A day with at least 31.2 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 60.3 mm (2.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Douglas 1 SE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
31.2 mm (1.2 in)
5 years
41.6 mm (1.6 in)
10 years
47.3 mm (1.9 in)
25 years
53.3 mm (2.1 in)
50 years
57.1 mm (2.2 in)
100 years
60.3 mm (2.4 in)
Longer than the 59 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, 59 years of values from 1911 to 2015.
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: 57.7 mm (2.3 in) in 1997; 54.9 mm (2.2 in) in 1941; 51.3 mm (2.0 in) in 1933.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Douglas 1 SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Douglas 1 SE 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.