Record envelope, standing records and threshold days for Elwha Rs (USC00452548), Washington, United States, with 77 years of record.
Key Facts for Elwha Rs
Elwha Rs (USC00452548) is a weather station in Washington, United States at 48.02 latitude and -123.59 longitude, 110 m (360 ft) above sea level.
The station reports from 1942 to 2018, 77 years of record.
1,464 records set at Elwha Rs still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Elwha Rs set a daily record precipitation of 43.4 mm (1.7 in) on 21 November 2017.
About the Station
Location: Washington, United States, 48.02 latitude, -123.59 longitude.
Elevation: 110 m (360 ft).
Period of record: 1942 to 2018, 77 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 Elwha Rs. 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 Elwha Rs, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.8 C (64.0 F)
-16.7 C (1.9 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-13.3 C (8.1 F)
n/a
n/a
Mar
21.1 C (70.0 F)
-9.4 C (15.1 F)
n/a
n/a
Apr
26.7 C (80.1 F)
-3.3 C (26.1 F)
n/a
n/a
May
30.6 C (87.1 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
34.4 C (93.9 F)
0.0 C (32.0 F)
n/a
n/a
Jul
35.6 C (96.1 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
36.1 C (97.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
32.8 C (91.0 F)
0.0 C (32.0 F)
n/a
n/a
Oct
24.4 C (75.9 F)
-6.1 C (21.0 F)
n/a
n/a
Nov
21.1 C (70.0 F)
-12.2 C (10.0 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-13.3 C (8.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Elwha Rs still stand. 1943 holds the most, with 58.
Standing records at Elwha Rs by the year they were set
Year set
Standing records
1942
33
1943
58
1944
58
1945
45
1946
35
1947
29
1948
13
1949
23
1950
35
1951
17
1952
27
1953
19
1954
15
1955
27
1956
23
1957
15
1958
44
1959
17
1960
19
1961
19
1962
19
1963
23
1964
7
1965
28
1966
16
1967
14
1968
18
1969
14
1970
13
1971
15
1972
47
1973
25
1974
10
1975
18
1976
19
1977
16
1978
19
1979
18
1980
14
1981
21
1982
22
1983
16
1984
12
1985
29
1986
22
1987
19
1988
16
1989
21
1990
16
1991
11
1992
18
1993
19
1994
16
1995
15
1996
20
1997
6
1998
9
1999
9
2000
4
2001
3
2002
21
2003
22
2004
12
2005
13
2006
10
2007
8
2008
16
2009
7
2010
8
2011
11
2012
14
2013
9
2014
12
2015
22
2016
17
2017
14
Wettest Day of Each Month
Nov: 122.2 mm (4.8 in)
The wettest day on record for each calendar month at Elwha Rs. The most was 122.2 mm (4.8 in) on 3 November 1955.
Record daily precipitation for each month at Elwha Rs
Month
Record daily precipitation (mm)
Date
Jan
102.4 mm (4.0 in)
2 January 1954
Feb
97.0 mm (3.8 in)
16 February 1949
Mar
78.5 mm (3.1 in)
21 March 1948
Apr
104.1 mm (4.1 in)
4 April 1991
May
37.1 mm (1.5 in)
13 May 1986
Jun
30.5 mm (1.2 in)
17 June 1944
Jul
36.8 mm (1.4 in)
17 July 1999
Aug
53.6 mm (2.1 in)
28 August 1951
Sep
51.6 mm (2.0 in)
29 September 2013
Oct
113.8 mm (4.5 in)
17 October 2003
Nov
122.2 mm (4.8 in)
3 November 1955
Dec
85.3 mm (3.4 in)
12 December 2010
Period of Record Coverage
1942 to 2017
Complete yearUnder 90 percent of days
76 years of record at Elwha Rs, 1942 to 2017. 24 years have data for under 90 percent of days and are left out of rankings: 1942, 1944, 1951, 1964, 1965, 1966, 1968, 1971 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 49 complete years at Elwha Rs, 1943 to 2014. Blue stripes are years cooler than the station's own mean of 9.3 C (48.7 F); red stripes are warmer. The coolest year was 1985, at 8.4 C (47.2 F), and the warmest was 1992, at 10.2 C (50.4 F). The strongest colour marks a difference of 1.0 C (1.8 F).
Annual mean temperature at Elwha Rs as warming stripes, 1943 to 2014
Year
Annual mean temperature
Difference from the station mean
1943
9.8 C
+0.50 C
1945
9.0 C
-0.31 C
1946
8.5 C
-0.79 C
1947
9.9 C
+0.61 C
1949
9.1 C
-0.22 C
1952
9.5 C
+0.25 C
1953
10.0 C
+0.70 C
1954
9.0 C
-0.32 C
1956
9.1 C
-0.20 C
1957
9.5 C
+0.25 C
1959
9.4 C
+0.12 C
1960
9.4 C
+0.13 C
1961
9.9 C
+0.63 C
1962
9.4 C
+0.08 C
1963
9.4 C
+0.11 C
1967
10.2 C
+0.93 C
1969
9.2 C
-0.12 C
1970
9.3 C
-0.03 C
1974
9.3 C
-0.03 C
1975
8.7 C
-0.62 C
1976
9.1 C
-0.19 C
1979
9.4 C
+0.14 C
1980
9.3 C
-0.03 C
1981
9.5 C
+0.17 C
1983
8.7 C
-0.62 C
1985
8.4 C
-0.85 C
1988
9.1 C
-0.15 C
1989
9.0 C
-0.27 C
1990
9.3 C
-0.01 C
1991
9.3 C
-0.01 C
1992
10.2 C
+0.94 C
1993
9.0 C
-0.29 C
1994
9.5 C
+0.18 C
1995
9.6 C
+0.35 C
1996
8.6 C
-0.71 C
1997
9.3 C
+0.01 C
1998
9.9 C
+0.58 C
1999
8.8 C
-0.48 C
2000
8.7 C
-0.56 C
2001
8.7 C
-0.56 C
2002
9.2 C
-0.13 C
2003
9.6 C
+0.34 C
2004
10.1 C
+0.80 C
2005
9.6 C
+0.33 C
2007
8.9 C
-0.36 C
2008
8.6 C
-0.68 C
2012
9.0 C
-0.30 C
2013
9.3 C
-0.02 C
2014
10.0 C
+0.72 C
The fitted trend in annual mean temperature here over 1943 to 2014 is -0.02 C (-0.09 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.15 to 0.07) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Elwha Rs
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.02 C (-0.09 to 0.04) per decade
-0.04 F (-0.15 to 0.07) per decade
1943 to 2014
49
Not clearly different from zero
Mean daily maximum
-0.2 C (-0.3 to -0.1) per decade
-0.4 F (-0.5 to -0.2) per decade
1943 to 2014
49
Fall
Mean daily minimum
0.2 C (0.1 to 0.2) per decade
0.3 F (0.1 to 0.4) per decade
1943 to 2014
49
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
1942 to 2018
Yearly extremes at Elwha Rs: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.1 C (97.0 F)
1965
32.8 C (91.0 F)
76
Coldest night (TNn)
-16.7 C (1.9 F)
1950
-7.8 C (18.0 F)
76
Wettest day (Rx1day)
122.2 mm (4.8 in)
1955
64.5 mm (2.5 in)
77
Wettest five days (Rx5day)
265.3 mm (10.4 in)
2017
150.3 mm (5.9 in)
77
Longest dry spell (CDD)
64 days
1986
30 days
77
Hottest day (TXx)
The hottest day of the year at Elwha Rs, 1942 to 2018. The record is 36.1 C (97.0 F) in 1965, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Elwha Rs by year
Year
Hottest day (TXx)
1942
32.8 C (91.0 F)
1943
33.9 C (93.0 F)
1944
33.3 C (91.9 F)
1945
33.3 C (91.9 F)
1946
31.1 C (88.0 F)
1947
29.4 C (84.9 F)
1948
31.1 C (88.0 F)
1949
30.6 C (87.1 F)
1950
30.6 C (87.1 F)
1951
33.9 C (93.0 F)
1952
33.3 C (91.9 F)
1953
31.7 C (89.1 F)
1954
30.6 C (87.1 F)
1955
30.6 C (87.1 F)
1956
34.4 C (93.9 F)
1957
28.9 C (84.0 F)
1958
35.6 C (96.1 F)
1959
35.0 C (95.0 F)
1960
34.4 C (93.9 F)
1961
35.0 C (95.0 F)
1962
32.2 C (90.0 F)
1963
31.7 C (89.1 F)
1964
28.3 C (82.9 F)
1965
36.1 C (97.0 F)
1966
30.6 C (87.1 F)
1967
36.1 C (97.0 F)
1968
32.2 C (90.0 F)
1969
33.9 C (93.0 F)
1970
32.8 C (91.0 F)
1971
35.0 C (95.0 F)
1972
30.6 C (87.1 F)
1973
31.7 C (89.1 F)
1974
31.7 C (89.1 F)
1975
31.1 C (88.0 F)
1976
28.3 C (82.9 F)
1977
36.1 C (97.0 F)
1978
34.4 C (93.9 F)
1979
32.2 C (90.0 F)
1980
30.0 C (86.0 F)
1981
34.4 C (93.9 F)
1982
31.7 C (89.1 F)
1983
28.3 C (82.9 F)
1984
31.1 C (88.0 F)
1985
34.4 C (93.9 F)
1986
33.3 C (91.9 F)
1987
32.8 C (91.0 F)
1988
33.9 C (93.0 F)
1989
32.2 C (90.0 F)
1990
33.3 C (91.9 F)
1991
31.7 C (89.1 F)
1992
32.8 C (91.0 F)
1993
30.0 C (86.0 F)
1994
33.3 C (91.9 F)
1995
33.9 C (93.0 F)
1996
32.2 C (90.0 F)
1997
30.6 C (87.1 F)
1998
33.3 C (91.9 F)
1999
27.8 C (82.0 F)
2000
30.0 C (86.0 F)
2001
31.7 C (89.1 F)
2002
33.9 C (93.0 F)
2003
33.9 C (93.0 F)
2004
34.4 C (93.9 F)
2005
31.1 C (88.0 F)
2006
35.6 C (96.1 F)
2007
35.0 C (95.0 F)
2008
33.3 C (91.9 F)
2009
30.6 C (87.1 F)
2010
33.9 C (93.0 F)
2011
30.6 C (87.1 F)
2012
32.8 C (91.0 F)
2013
29.4 C (84.9 F)
2014
33.3 C (91.9 F)
2015
35.0 C (95.0 F)
2016
34.4 C (93.9 F)
2017
33.3 C (91.9 F)
2018
n/a
Coldest night (TNn)
The coldest night of the year at Elwha Rs, 1942 to 2018. The record is -16.7 C (1.9 F) in 1950, marked on the chart; the median year is -7.8 C (18.0 F).
Coldest night (TNn) at Elwha Rs by year
Year
Coldest night (TNn)
1942
-8.9 C (16.0 F)
1943
-15.6 C (3.9 F)
1944
-7.8 C (18.0 F)
1945
-7.8 C (18.0 F)
1946
-7.8 C (18.0 F)
1947
-12.8 C (9.0 F)
1948
-7.2 C (19.0 F)
1949
-12.2 C (10.0 F)
1950
-16.7 C (1.9 F)
1951
-8.9 C (16.0 F)
1952
-7.8 C (18.0 F)
1953
-2.2 C (28.0 F)
1954
-8.3 C (17.1 F)
1955
-11.7 C (10.9 F)
1956
-10.6 C (12.9 F)
1957
-11.7 C (10.9 F)
1958
-3.9 C (25.0 F)
1959
-11.7 C (10.9 F)
1960
-5.6 C (21.9 F)
1961
-6.7 C (19.9 F)
1962
-9.4 C (15.1 F)
1963
-10.0 C (14.0 F)
1964
-13.3 C (8.1 F)
1965
-3.9 C (25.0 F)
1966
-3.9 C (25.0 F)
1967
-3.9 C (25.0 F)
1968
-13.3 C (8.1 F)
1969
-12.8 C (9.0 F)
1970
-6.7 C (19.9 F)
1971
-6.1 C (21.0 F)
1972
-11.1 C (12.0 F)
1973
-12.8 C (9.0 F)
1974
-7.2 C (19.0 F)
1975
-4.4 C (24.1 F)
1976
-5.0 C (23.0 F)
1977
-8.9 C (16.0 F)
1978
-11.7 C (10.9 F)
1979
-12.2 C (10.0 F)
1980
-10.6 C (12.9 F)
1981
-5.6 C (21.9 F)
1982
-10.6 C (12.9 F)
1983
-13.3 C (8.1 F)
1984
-6.1 C (21.0 F)
1985
-12.2 C (10.0 F)
1986
-5.6 C (21.9 F)
1987
-4.4 C (24.1 F)
1988
-5.6 C (21.9 F)
1989
-13.3 C (8.1 F)
1990
-12.8 C (9.0 F)
1991
-3.3 C (26.1 F)
1992
-3.9 C (25.0 F)
1993
-9.4 C (15.1 F)
1994
-6.7 C (19.9 F)
1995
-5.6 C (21.9 F)
1996
-11.1 C (12.0 F)
1997
-5.6 C (21.9 F)
1998
-7.8 C (18.0 F)
1999
-2.8 C (27.0 F)
2000
-4.4 C (24.1 F)
2001
-3.3 C (26.1 F)
2002
-6.1 C (21.0 F)
2003
-3.3 C (26.1 F)
2004
-10.6 C (12.9 F)
2005
-5.0 C (23.0 F)
2006
-5.6 C (21.9 F)
2007
-7.2 C (19.0 F)
2008
-10.6 C (12.9 F)
2009
-7.2 C (19.0 F)
2010
-9.4 C (15.1 F)
2011
-8.3 C (17.1 F)
2012
-5.6 C (21.9 F)
2013
-8.3 C (17.1 F)
2014
-9.4 C (15.1 F)
2015
-3.9 C (25.0 F)
2016
-5.6 C (21.9 F)
2017
-9.4 C (15.1 F)
2018
n/a
Wettest day (Rx1day)
The wettest day of the year at Elwha Rs, 1942 to 2018. The record is 122.2 mm (4.8 in) in 1955, marked on the chart; the median year is 64.5 mm (2.5 in).
Wettest day (Rx1day) at Elwha Rs by year
Year
Wettest day (Rx1day)
1942
91.4 mm (3.6 in)
1943
73.7 mm (2.9 in)
1944
50.5 mm (2.0 in)
1945
87.1 mm (3.4 in)
1946
58.9 mm (2.3 in)
1947
75.7 mm (3.0 in)
1948
78.5 mm (3.1 in)
1949
97.0 mm (3.8 in)
1950
64.5 mm (2.5 in)
1951
64.3 mm (2.5 in)
1952
50.8 mm (2.0 in)
1953
64.5 mm (2.5 in)
1954
102.4 mm (4.0 in)
1955
122.2 mm (4.8 in)
1956
76.2 mm (3.0 in)
1957
68.6 mm (2.7 in)
1958
45.0 mm (1.8 in)
1959
63.5 mm (2.5 in)
1960
69.9 mm (2.8 in)
1961
71.1 mm (2.8 in)
1962
61.0 mm (2.4 in)
1963
58.9 mm (2.3 in)
1964
67.8 mm (2.7 in)
1965
55.4 mm (2.2 in)
1966
53.3 mm (2.1 in)
1967
91.9 mm (3.6 in)
1968
57.4 mm (2.3 in)
1969
47.0 mm (1.9 in)
1970
45.0 mm (1.8 in)
1971
57.7 mm (2.3 in)
1972
54.4 mm (2.1 in)
1973
50.3 mm (2.0 in)
1974
64.3 mm (2.5 in)
1975
50.0 mm (2.0 in)
1976
55.1 mm (2.2 in)
1977
65.3 mm (2.6 in)
1978
63.0 mm (2.5 in)
1979
81.8 mm (3.2 in)
1980
57.2 mm (2.3 in)
1981
64.5 mm (2.5 in)
1982
72.4 mm (2.9 in)
1983
66.8 mm (2.6 in)
1984
67.8 mm (2.7 in)
1985
71.1 mm (2.8 in)
1986
77.0 mm (3.0 in)
1987
53.8 mm (2.1 in)
1988
61.7 mm (2.4 in)
1989
67.3 mm (2.6 in)
1990
61.7 mm (2.4 in)
1991
104.1 mm (4.1 in)
1992
56.4 mm (2.2 in)
1993
57.9 mm (2.3 in)
1994
49.3 mm (1.9 in)
1995
95.3 mm (3.8 in)
1996
50.8 mm (2.0 in)
1997
72.9 mm (2.9 in)
1998
66.5 mm (2.6 in)
1999
67.3 mm (2.6 in)
2000
49.3 mm (1.9 in)
2001
55.6 mm (2.2 in)
2002
76.7 mm (3.0 in)
2003
113.8 mm (4.5 in)
2004
59.9 mm (2.4 in)
2005
33.8 mm (1.3 in)
2006
64.5 mm (2.5 in)
2007
85.1 mm (3.4 in)
2008
64.3 mm (2.5 in)
2009
69.9 mm (2.8 in)
2010
85.3 mm (3.4 in)
2011
103.9 mm (4.1 in)
2012
52.6 mm (2.1 in)
2013
51.6 mm (2.0 in)
2014
57.9 mm (2.3 in)
2015
83.1 mm (3.3 in)
2016
52.6 mm (2.1 in)
2017
96.3 mm (3.8 in)
2018
11.4 mm (0.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Elwha Rs, 1942 to 2018. The record is 265.3 mm (10.4 in) in 2017, marked on the chart; the median year is 150.3 mm (5.9 in).
Wettest five days (Rx5day) at Elwha Rs by year
Year
Wettest five days (Rx5day)
1942
132.1 mm (5.2 in)
1943
123.4 mm (4.9 in)
1944
91.2 mm (3.6 in)
1945
140.7 mm (5.5 in)
1946
117.8 mm (4.6 in)
1947
152.1 mm (6.0 in)
1948
176.6 mm (7.0 in)
1949
205.5 mm (8.1 in)
1950
144.0 mm (5.7 in)
1951
139.9 mm (5.5 in)
1952
140.2 mm (5.5 in)
1953
166.8 mm (6.6 in)
1954
241.4 mm (9.5 in)
1955
181.7 mm (7.2 in)
1956
151.6 mm (6.0 in)
1957
120.1 mm (4.7 in)
1958
118.4 mm (4.7 in)
1959
151.3 mm (6.0 in)
1960
120.1 mm (4.7 in)
1961
125.8 mm (5.0 in)
1962
128.0 mm (5.0 in)
1963
191.0 mm (7.5 in)
1964
131.3 mm (5.2 in)
1965
109.3 mm (4.3 in)
1966
114.6 mm (4.5 in)
1967
189.7 mm (7.5 in)
1968
149.9 mm (5.9 in)
1969
138.4 mm (5.4 in)
1970
111.0 mm (4.4 in)
1971
126.6 mm (5.0 in)
1972
214.7 mm (8.5 in)
1973
143.0 mm (5.6 in)
1974
234.4 mm (9.2 in)
1975
150.3 mm (5.9 in)
1976
140.7 mm (5.5 in)
1977
207.1 mm (8.2 in)
1978
88.2 mm (3.5 in)
1979
243.1 mm (9.6 in)
1980
110.2 mm (4.3 in)
1981
148.0 mm (5.8 in)
1982
186.5 mm (7.3 in)
1983
195.3 mm (7.7 in)
1984
148.1 mm (5.8 in)
1985
173.7 mm (6.8 in)
1986
203.1 mm (8.0 in)
1987
182.8 mm (7.2 in)
1988
137.1 mm (5.4 in)
1989
108.4 mm (4.3 in)
1990
174.7 mm (6.9 in)
1991
161.6 mm (6.4 in)
1992
195.9 mm (7.7 in)
1993
119.4 mm (4.7 in)
1994
174.5 mm (6.9 in)
1995
179.1 mm (7.1 in)
1996
124.9 mm (4.9 in)
1997
177.1 mm (7.0 in)
1998
193.9 mm (7.6 in)
1999
182.9 mm (7.2 in)
2000
86.4 mm (3.4 in)
2001
158.0 mm (6.2 in)
2002
157.8 mm (6.2 in)
2003
240.3 mm (9.5 in)
2004
145.4 mm (5.7 in)
2005
121.1 mm (4.8 in)
2006
187.2 mm (7.4 in)
2007
160.7 mm (6.3 in)
2008
122.9 mm (4.8 in)
2009
155.7 mm (6.1 in)
2010
140.2 mm (5.5 in)
2011
157.8 mm (6.2 in)
2012
167.7 mm (6.6 in)
2013
63.1 mm (2.5 in)
2014
162.3 mm (6.4 in)
2015
169.8 mm (6.7 in)
2016
136.7 mm (5.4 in)
2017
265.3 mm (10.4 in)
2018
25.9 mm (1.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Elwha Rs, 1942 to 2018. The record is 64 days in 1986, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Elwha Rs by year
Year
Longest dry spell (CDD)
1942
38 days
1943
26 days
1944
52 days
1945
37 days
1946
31 days
1947
22 days
1948
13 days
1949
18 days
1950
29 days
1951
38 days
1952
41 days
1953
21 days
1954
23 days
1955
33 days
1956
38 days
1957
22 days
1958
58 days
1959
28 days
1960
60 days
1961
40 days
1962
27 days
1963
17 days
1964
17 days
1965
30 days
1966
29 days
1967
44 days
1968
25 days
1969
25 days
1970
40 days
1971
40 days
1972
15 days
1973
39 days
1974
35 days
1975
32 days
1976
35 days
1977
32 days
1978
27 days
1979
31 days
1980
43 days
1981
41 days
1982
21 days
1983
25 days
1984
20 days
1985
52 days
1986
64 days
1987
45 days
1988
33 days
1989
20 days
1990
40 days
1991
45 days
1992
21 days
1993
44 days
1994
31 days
1995
25 days
1996
27 days
1997
28 days
1998
20 days
1999
18 days
2000
20 days
2001
17 days
2002
59 days
2003
28 days
2004
25 days
2005
31 days
2006
29 days
2007
20 days
2008
27 days
2009
8 days
2010
22 days
2011
16 days
2012
39 days
2013
47 days
2014
38 days
2015
31 days
2016
25 days
2017
55 days
2018
36 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
49 years with a frost
Across 49 years with a frost, the median last spring frost at Elwha Rs falls on 12 April and the median first autumn frost on 5 November, which leaves a median of 204 days between them.
Fitted over all years, the growing season changes by +4.3 days per decade at this station.
Frost dates and growing season at Elwha Rs
Measure
Median, all years
Earliest period
Recent period (1975 to 2014)
Recent against earliest
Fitted trend
Last spring frost
12 April
n/a
9 April
n/a
-2.9 days per decade
First autumn frost
5 November
n/a
8 November
n/a
+1.3 days per decade
Growing days
204 days
n/a
212 days
n/a
+4.3 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
61 years, 1943 to 2016
A day with at least 62.9 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 127.6 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Elwha Rs: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
62.9 mm (2.5 in)
5 years
78.0 mm (3.1 in)
10 years
88.9 mm (3.5 in)
25 years
103.6 mm (4.1 in)
50 years
115.3 mm (4.5 in)
100 years
127.6 mm (5.0 in)
Longer than the 61 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, 61 years of values from 1943 to 2016.
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: 122.2 mm (4.8 in) in 1955; 113.8 mm (4.5 in) in 2003; 104.1 mm (4.1 in) in 1991.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Elwha Rs, at 1981. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1981 ran 0.2 C (0.4 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Elwha Rs, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1981
-0.2
-0.4
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 Elwha Rs standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Elwha Rs 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.