Longmire Rainier Nps Weather Records (USC00456894)
Record envelope, standing records and threshold days for Longmire Rainier Nps (USC00456894), Washington, United States, with 70 years of record.
Key Facts for Longmire Rainier Nps
Longmire Rainier Nps (USC00456894) is a weather station in Washington, United States at 46.75 latitude and -121.82 longitude, 842 m (2,762 ft) above sea level.
The station reports from 1909 to 1978, 70 years of record.
1,464 records set at Longmire Rainier Nps still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Longmire Rainier Nps tied a daily record low maximum temperature of 0.6 C (33.1 F) on 24 November 1978.
About the Station
Location: Washington, United States, 46.75 latitude, -121.82 longitude.
Elevation: 842 m (2,762 ft).
Period of record: 1909 to 1978, 70 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 Longmire Rainier Nps. 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 Longmire Rainier Nps, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
17.2 C (63.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Feb
20.6 C (69.1 F)
-20.6 C (-5.1 F)
n/a
n/a
Mar
22.8 C (73.0 F)
-18.3 C (-0.9 F)
n/a
n/a
Apr
29.4 C (84.9 F)
-11.1 C (12.0 F)
n/a
n/a
May
35.0 C (95.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
0.6 C (33.1 F)
n/a
n/a
Aug
38.3 C (100.9 F)
0.6 C (33.1 F)
n/a
n/a
Sep
36.1 C (97.0 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
22.2 C (72.0 F)
-16.1 C (3.0 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-19.4 C (-2.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Longmire Rainier Nps still stand. 1934 holds the most, with 56.
Standing records at Longmire Rainier Nps by the year they were set
Year set
Standing records
1909
29
1910
15
1912
3
1913
7
1914
26
1915
13
1916
34
1917
37
1918
21
1919
33
1920
20
1921
12
1922
29
1923
11
1924
28
1925
15
1926
28
1927
16
1928
21
1929
24
1930
19
1931
21
1932
18
1933
34
1934
56
1935
44
1936
41
1937
20
1938
16
1939
24
1940
35
1941
43
1942
14
1943
25
1944
19
1945
28
1946
11
1947
19
1948
18
1949
23
1950
32
1951
13
1952
20
1953
10
1954
10
1955
39
1956
16
1957
9
1958
27
1959
11
1960
23
1961
30
1962
16
1963
29
1964
12
1965
14
1966
11
1967
11
1968
24
1969
11
1970
11
1971
22
1972
17
1973
20
1974
14
1975
19
1976
14
1977
22
1978
7
All-Time Record Progression
6 new records
6 all-time records were set at Longmire Rainier Nps between 28 March 1943 and 2 December 1977. Each dot is a new record.
When Longmire Rainier Nps set new all-time records
Date
Kind
Detail
1943-03-28
Record daily precipitation
Record daily precipitation 133.4 mm (5.3 in)
1945-08-07
Record high minimum temperature
Record high minimum temperature 20.6 C (69.1 F)
1946-12-11
Record daily precipitation
Record daily precipitation 155.2 mm (6.1 in)
1950-01-14
Record low maximum temperature
Record low maximum temperature -12.8 C (9.0 F)
1971-01-23
Record daily snowfall
Record daily snowfall 71.1 cm (28.0 in)
1977-12-02
Record daily precipitation
Record daily precipitation 193.8 mm (7.6 in)
Wettest Day of Each Month
Dec: 193.8 mm (7.6 in)
The wettest day on record for each calendar month at Longmire Rainier Nps. The most was 193.8 mm (7.6 in) on 2 December 1977.
Record daily precipitation for each month at Longmire Rainier Nps
Month
Record daily precipitation (mm)
Date
Jan
135.1 mm (5.3 in)
23 January 1971
Feb
87.6 mm (3.4 in)
3 February 1963
Mar
133.4 mm (5.3 in)
28 March 1943
Apr
91.4 mm (3.6 in)
17 April 1938
May
50.3 mm (2.0 in)
12 May 1927
Jun
64.8 mm (2.6 in)
5 June 1974
Jul
45.2 mm (1.8 in)
2 July 1916
Aug
52.3 mm (2.1 in)
18 August 1975
Sep
99.6 mm (3.9 in)
26 September 1959
Oct
109.7 mm (4.3 in)
22 October 1959
Nov
102.6 mm (4.0 in)
20 November 1962
Dec
193.8 mm (7.6 in)
2 December 1977
Period of Record Coverage
1909 to 1978
Complete yearUnder 90 percent of days
69 years of record at Longmire Rainier Nps, 1909 to 1978. 7 years have data for under 90 percent of days and are left out of rankings: 1909, 1910, 1912, 1913, 1971, 1972, 1978.
Cooler than the station meanWarmer than the station mean
One stripe for each of 61 complete years at Longmire Rainier Nps, 1914 to 1977. 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 1958, at 9.0 C (48.2 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Longmire Rainier Nps as warming stripes, 1914 to 1977
Year
Annual mean temperature
Difference from the station mean
1914
7.3 C
+0.18 C
1915
7.4 C
+0.29 C
1916
5.4 C
-1.67 C
1917
6.1 C
-0.99 C
1918
6.8 C
-0.25 C
1919
6.3 C
-0.81 C
1920
6.6 C
-0.53 C
1921
6.3 C
-0.79 C
1922
6.1 C
-1.02 C
1923
6.9 C
-0.18 C
1925
7.4 C
+0.31 C
1926
7.9 C
+0.82 C
1927
5.9 C
-1.18 C
1928
7.2 C
+0.07 C
1930
6.4 C
-0.74 C
1931
6.9 C
-0.23 C
1932
6.5 C
-0.56 C
1933
6.0 C
-1.06 C
1934
8.9 C
+1.78 C
1935
7.3 C
+0.16 C
1936
7.8 C
+0.66 C
1937
7.2 C
+0.11 C
1938
8.1 C
+0.98 C
1939
8.1 C
+1.01 C
1940
8.5 C
+1.44 C
1941
8.4 C
+1.26 C
1942
6.9 C
-0.15 C
1943
6.6 C
-0.46 C
1944
7.6 C
+0.51 C
1945
7.6 C
+0.55 C
1946
6.8 C
-0.29 C
1947
7.6 C
+0.53 C
1948
5.9 C
-1.16 C
1949
7.1 C
-0.02 C
1950
6.5 C
-0.62 C
1951
7.2 C
+0.15 C
1952
8.0 C
+0.87 C
1953
7.6 C
+0.47 C
1954
6.5 C
-0.56 C
1955
5.4 C
-1.73 C
1956
6.9 C
-0.22 C
1957
7.3 C
+0.16 C
1958
9.0 C
+1.91 C
1959
7.2 C
+0.07 C
1960
7.3 C
+0.22 C
1961
7.9 C
+0.77 C
1962
7.5 C
+0.45 C
1963
7.8 C
+0.67 C
1964
6.3 C
-0.79 C
1965
8.0 C
+0.93 C
1966
7.6 C
+0.47 C
1967
8.0 C
+0.88 C
1968
7.3 C
+0.23 C
1969
7.3 C
+0.22 C
1970
6.7 C
-0.35 C
1971
6.1 C
-1.03 C
1973
7.0 C
-0.10 C
1974
7.0 C
-0.09 C
1975
6.1 C
-0.96 C
1976
6.7 C
-0.41 C
1977
6.8 C
-0.25 C
The fitted trend in annual mean temperature here over 1914 to 1977 is 0.06 C (-0.05 to 0.17) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Longmire Rainier Nps
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.06 C (-0.05 to 0.17) per decade
0.1 F (-0.1 to 0.3) per decade
1914 to 1977
61
Not clearly different from zero
Mean daily maximum
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.4) per decade
1914 to 1977
61
Not clearly different from zero
Mean daily minimum
0.06 C (-0.05 to 0.16) per decade
0.1 F (-0.1 to 0.3) per decade
1914 to 1977
61
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 1978
Yearly extremes at Longmire Rainier Nps: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
1935
35.0 C (95.0 F)
69
Coldest night (TNn)
-22.8 C (-9.0 F)
1935
-15.6 C (3.9 F)
69
Wettest day (Rx1day)
193.8 mm (7.6 in)
1977
74.4 mm (2.9 in)
69
Wettest five days (Rx5day)
332.3 mm (13.1 in)
1933
168.4 mm (6.6 in)
69
Longest dry spell (CDD)
56 days
1931
25 days
69
Hottest day (TXx)
The hottest day of the year at Longmire Rainier Nps, 1909 to 1978. The record is 40.6 C (105.1 F) in 1935, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Longmire Rainier Nps by year
Year
Hottest day (TXx)
1909
26.1 C (79.0 F)
1910
16.7 C (62.1 F)
1912
30.0 C (86.0 F)
1913
28.3 C (82.9 F)
1914
33.9 C (93.0 F)
1915
37.2 C (99.0 F)
1916
35.6 C (96.1 F)
1917
35.6 C (96.1 F)
1918
32.2 C (90.0 F)
1919
35.0 C (95.0 F)
1920
33.3 C (91.9 F)
1921
29.4 C (84.9 F)
1922
35.0 C (95.0 F)
1923
35.0 C (95.0 F)
1924
33.3 C (91.9 F)
1925
36.7 C (98.1 F)
1926
34.4 C (93.9 F)
1927
36.7 C (98.1 F)
1928
36.7 C (98.1 F)
1929
32.8 C (91.0 F)
1930
33.9 C (93.0 F)
1931
36.1 C (97.0 F)
1932
31.1 C (88.0 F)
1933
37.8 C (100.0 F)
1934
35.6 C (96.1 F)
1935
40.6 C (105.1 F)
1936
32.2 C (90.0 F)
1937
35.0 C (95.0 F)
1938
37.8 C (100.0 F)
1939
33.3 C (91.9 F)
1940
35.6 C (96.1 F)
1941
37.8 C (100.0 F)
1942
37.8 C (100.0 F)
1943
33.3 C (91.9 F)
1944
36.7 C (98.1 F)
1945
36.1 C (97.0 F)
1946
37.8 C (100.0 F)
1947
33.3 C (91.9 F)
1948
33.3 C (91.9 F)
1949
32.2 C (90.0 F)
1950
32.8 C (91.0 F)
1951
35.6 C (96.1 F)
1952
36.1 C (97.0 F)
1953
35.0 C (95.0 F)
1954
30.0 C (86.0 F)
1955
36.1 C (97.0 F)
1956
37.2 C (99.0 F)
1957
32.2 C (90.0 F)
1958
37.2 C (99.0 F)
1959
34.4 C (93.9 F)
1960
35.6 C (96.1 F)
1961
36.7 C (98.1 F)
1962
32.2 C (90.0 F)
1963
33.9 C (93.0 F)
1964
31.1 C (88.0 F)
1965
37.8 C (100.0 F)
1966
29.4 C (84.9 F)
1967
35.6 C (96.1 F)
1968
33.3 C (91.9 F)
1969
32.2 C (90.0 F)
1970
36.7 C (98.1 F)
1971
36.7 C (98.1 F)
1972
35.0 C (95.0 F)
1973
35.6 C (96.1 F)
1974
34.4 C (93.9 F)
1975
31.7 C (89.1 F)
1976
30.6 C (87.1 F)
1977
38.3 C (100.9 F)
1978
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Longmire Rainier Nps, 1909 to 1978. The record is -22.8 C (-9.0 F) in 1935, marked on the chart; the median year is -15.6 C (3.9 F).
Coldest night (TNn) at Longmire Rainier Nps by year
Year
Coldest night (TNn)
1909
-10.0 C (14.0 F)
1910
-4.4 C (24.1 F)
1912
-2.8 C (27.0 F)
1913
-7.2 C (19.0 F)
1914
-12.8 C (9.0 F)
1915
-16.1 C (3.0 F)
1916
-20.0 C (-4.0 F)
1917
-20.0 C (-4.0 F)
1918
-17.2 C (1.0 F)
1919
-18.9 C (-2.0 F)
1920
-10.0 C (14.0 F)
1921
-12.2 C (10.0 F)
1922
-18.9 C (-2.0 F)
1923
-16.1 C (3.0 F)
1924
-20.0 C (-4.0 F)
1925
-8.9 C (16.0 F)
1926
-16.7 C (1.9 F)
1927
-18.9 C (-2.0 F)
1928
-12.2 C (10.0 F)
1929
-17.8 C (0.0 F)
1930
-18.3 C (-0.9 F)
1931
-11.7 C (10.9 F)
1932
-18.3 C (-0.9 F)
1933
-14.4 C (6.1 F)
1934
-6.7 C (19.9 F)
1935
-22.8 C (-9.0 F)
1936
-14.4 C (6.1 F)
1937
-18.9 C (-2.0 F)
1938
-12.2 C (10.0 F)
1939
-11.1 C (12.0 F)
1940
-11.1 C (12.0 F)
1941
-12.8 C (9.0 F)
1942
-16.1 C (3.0 F)
1943
-20.6 C (-5.1 F)
1944
-12.8 C (9.0 F)
1945
-13.3 C (8.1 F)
1946
-12.8 C (9.0 F)
1947
-18.9 C (-2.0 F)
1948
-15.6 C (3.9 F)
1949
-18.3 C (-0.9 F)
1950
-22.2 C (-8.0 F)
1951
-15.6 C (3.9 F)
1952
-15.6 C (3.9 F)
1953
-9.4 C (15.1 F)
1954
-18.3 C (-0.9 F)
1955
-18.3 C (-0.9 F)
1956
-17.8 C (0.0 F)
1957
-17.8 C (0.0 F)
1958
-10.0 C (14.0 F)
1959
-16.7 C (1.9 F)
1960
-13.3 C (8.1 F)
1961
-13.3 C (8.1 F)
1962
-18.3 C (-0.9 F)
1963
-17.2 C (1.0 F)
1964
-19.4 C (-2.9 F)
1965
-11.1 C (12.0 F)
1966
-10.0 C (14.0 F)
1967
-12.2 C (10.0 F)
1968
-17.8 C (0.0 F)
1969
-15.6 C (3.9 F)
1970
-12.2 C (10.0 F)
1971
-15.0 C (5.0 F)
1972
-17.2 C (1.0 F)
1973
-14.4 C (6.1 F)
1974
-16.1 C (3.0 F)
1975
-12.2 C (10.0 F)
1976
-12.8 C (9.0 F)
1977
-15.0 C (5.0 F)
1978
-8.9 C (16.0 F)
Wettest day (Rx1day)
The wettest day of the year at Longmire Rainier Nps, 1909 to 1978. The record is 193.8 mm (7.6 in) in 1977, marked on the chart; the median year is 74.4 mm (2.9 in).
Wettest day (Rx1day) at Longmire Rainier Nps by year
Year
Wettest day (Rx1day)
1909
48.8 mm (1.9 in)
1910
20.8 mm (0.8 in)
1912
38.1 mm (1.5 in)
1913
50.8 mm (2.0 in)
1914
76.2 mm (3.0 in)
1915
95.3 mm (3.8 in)
1916
85.1 mm (3.4 in)
1917
130.8 mm (5.1 in)
1918
61.5 mm (2.4 in)
1919
116.8 mm (4.6 in)
1920
102.6 mm (4.0 in)
1921
89.4 mm (3.5 in)
1922
61.7 mm (2.4 in)
1923
91.2 mm (3.6 in)
1924
62.5 mm (2.5 in)
1925
69.9 mm (2.8 in)
1926
60.5 mm (2.4 in)
1927
78.7 mm (3.1 in)
1928
54.6 mm (2.1 in)
1929
38.1 mm (1.5 in)
1930
57.4 mm (2.3 in)
1931
108.0 mm (4.3 in)
1932
73.7 mm (2.9 in)
1933
113.8 mm (4.5 in)
1934
73.4 mm (2.9 in)
1935
77.7 mm (3.1 in)
1936
58.4 mm (2.3 in)
1937
91.7 mm (3.6 in)
1938
91.4 mm (3.6 in)
1939
70.1 mm (2.8 in)
1940
51.8 mm (2.0 in)
1941
77.5 mm (3.1 in)
1942
69.9 mm (2.8 in)
1943
133.4 mm (5.3 in)
1944
45.7 mm (1.8 in)
1945
85.3 mm (3.4 in)
1946
155.2 mm (6.1 in)
1947
81.3 mm (3.2 in)
1948
59.7 mm (2.4 in)
1949
68.6 mm (2.7 in)
1950
72.4 mm (2.9 in)
1951
52.3 mm (2.1 in)
1952
49.8 mm (2.0 in)
1953
68.3 mm (2.7 in)
1954
65.8 mm (2.6 in)
1955
77.0 mm (3.0 in)
1956
55.9 mm (2.2 in)
1957
66.5 mm (2.6 in)
1958
83.6 mm (3.3 in)
1959
109.7 mm (4.3 in)
1960
60.5 mm (2.4 in)
1961
76.7 mm (3.0 in)
1962
102.6 mm (4.0 in)
1963
87.6 mm (3.4 in)
1964
72.9 mm (2.9 in)
1965
108.5 mm (4.3 in)
1966
54.6 mm (2.1 in)
1967
80.0 mm (3.1 in)
1968
66.3 mm (2.6 in)
1969
74.4 mm (2.9 in)
1970
83.3 mm (3.3 in)
1971
135.1 mm (5.3 in)
1972
106.4 mm (4.2 in)
1973
40.1 mm (1.6 in)
1974
86.4 mm (3.4 in)
1975
82.0 mm (3.2 in)
1976
90.7 mm (3.6 in)
1977
193.8 mm (7.6 in)
1978
41.9 mm (1.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Longmire Rainier Nps, 1909 to 1978. The record is 332.3 mm (13.1 in) in 1933, marked on the chart; the median year is 168.4 mm (6.6 in).
Wettest five days (Rx5day) at Longmire Rainier Nps by year
Year
Wettest five days (Rx5day)
1909
127.1 mm (5.0 in)
1910
75.2 mm (3.0 in)
1912
66.0 mm (2.6 in)
1913
132.1 mm (5.2 in)
1914
189.0 mm (7.4 in)
1915
158.1 mm (6.2 in)
1916
221.7 mm (8.7 in)
1917
302.0 mm (11.9 in)
1918
162.8 mm (6.4 in)
1919
216.9 mm (8.5 in)
1920
190.9 mm (7.5 in)
1921
287.0 mm (11.3 in)
1922
113.6 mm (4.5 in)
1923
206.9 mm (8.1 in)
1924
145.2 mm (5.7 in)
1925
136.1 mm (5.4 in)
1926
122.0 mm (4.8 in)
1927
166.4 mm (6.6 in)
1928
124.5 mm (4.9 in)
1929
98.0 mm (3.9 in)
1930
93.7 mm (3.7 in)
1931
180.4 mm (7.1 in)
1932
252.6 mm (9.9 in)
1933
332.3 mm (13.1 in)
1934
210.5 mm (8.3 in)
1935
168.4 mm (6.6 in)
1936
180.6 mm (7.1 in)
1937
209.6 mm (8.3 in)
1938
131.8 mm (5.2 in)
1939
170.5 mm (6.7 in)
1940
158.4 mm (6.2 in)
1941
164.3 mm (6.5 in)
1942
155.4 mm (6.1 in)
1943
234.8 mm (9.2 in)
1944
104.6 mm (4.1 in)
1945
160.5 mm (6.3 in)
1946
313.9 mm (12.4 in)
1947
195.9 mm (7.7 in)
1948
148.3 mm (5.8 in)
1949
189.8 mm (7.5 in)
1950
178.6 mm (7.0 in)
1951
165.9 mm (6.5 in)
1952
93.6 mm (3.7 in)
1953
215.8 mm (8.5 in)
1954
162.5 mm (6.4 in)
1955
177.8 mm (7.0 in)
1956
180.5 mm (7.1 in)
1957
151.1 mm (5.9 in)
1958
219.2 mm (8.6 in)
1959
288.4 mm (11.4 in)
1960
151.9 mm (6.0 in)
1961
161.4 mm (6.4 in)
1962
218.0 mm (8.6 in)
1963
191.3 mm (7.5 in)
1964
166.9 mm (6.6 in)
1965
316.3 mm (12.5 in)
1966
123.8 mm (4.9 in)
1967
152.2 mm (6.0 in)
1968
162.6 mm (6.4 in)
1969
203.9 mm (8.0 in)
1970
162.5 mm (6.4 in)
1971
299.2 mm (11.8 in)
1972
234.1 mm (9.2 in)
1973
123.5 mm (4.9 in)
1974
261.7 mm (10.3 in)
1975
198.9 mm (7.8 in)
1976
189.6 mm (7.5 in)
1977
294.9 mm (11.6 in)
1978
88.7 mm (3.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Longmire Rainier Nps, 1909 to 1978. The record is 56 days in 1931, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Longmire Rainier Nps by year
Year
Longest dry spell (CDD)
1909
29 days
1910
6 days
1912
30 days
1913
11 days
1914
21 days
1915
16 days
1916
29 days
1917
40 days
1918
36 days
1919
24 days
1920
18 days
1921
22 days
1922
48 days
1923
39 days
1924
29 days
1925
41 days
1926
31 days
1927
20 days
1928
26 days
1929
19 days
1930
41 days
1931
56 days
1932
20 days
1933
32 days
1934
31 days
1935
19 days
1936
42 days
1937
24 days
1938
32 days
1939
35 days
1940
43 days
1941
24 days
1942
32 days
1943
25 days
1944
45 days
1945
22 days
1946
21 days
1947
24 days
1948
13 days
1949
15 days
1950
30 days
1951
52 days
1952
37 days
1953
20 days
1954
23 days
1955
31 days
1956
21 days
1957
19 days
1958
33 days
1959
15 days
1960
36 days
1961
22 days
1962
20 days
1963
21 days
1964
9 days
1965
25 days
1966
18 days
1967
28 days
1968
24 days
1969
23 days
1970
22 days
1971
40 days
1972
24 days
1973
47 days
1974
30 days
1975
26 days
1976
21 days
1977
26 days
1978
15 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
61 years with a frost
Across 61 years with a frost, the median last spring frost at Longmire Rainier Nps falls on 27 May and the median first autumn frost on 1 October, which leaves a median of 126 days between them.
In 1947 to 1977 the median growing season was 126 days. That is 1 day fewer than in 1914 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 Longmire Rainier Nps
Measure
Median, all years
Earliest period (1914 to 1945)
Recent period (1947 to 1977)
Recent against earliest
Fitted trend
Last spring frost
27 May
28 May
27 May
1 day earlier
-0.9 days per decade
First autumn frost
1 October
29 September
2 October
3 days later
+0.3 days per decade
Growing days
126 days
127 days
126 days
1 day fewer
+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
62 years, 1914 to 1978
A day with at least 75.8 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 177.8 mm (7.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Longmire Rainier Nps: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
75.8 mm (3.0 in)
5 years
99.3 mm (3.9 in)
10 years
116.3 mm (4.6 in)
25 years
139.5 mm (5.5 in)
50 years
158.1 mm (6.2 in)
100 years
177.8 mm (7.0 in)
Longer than the 62 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, 62 years of values from 1914 to 1978.
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: 193.8 mm (7.6 in) in 1977; 155.2 mm (6.1 in) in 1946; 135.1 mm (5.3 in) in 1971.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Longmire Rainier Nps, at 1970. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1970 ran 0.4 C (0.6 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Longmire Rainier Nps, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1970
-0.3
-0.6
possible
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 Longmire Rainier Nps standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Longmire Rainier Nps 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.