Record envelope, standing records and threshold days for Bliss 4 NW (USC00101002), Idaho, United States, with 107 years of record.
Key Facts for Bliss 4 NW
Bliss 4 NW (USC00101002) is a weather station in Idaho, United States at 42.95 latitude and -115.01 longitude, 998 m (3,275 ft) above sea level.
The station reports from 1894 to 2000, 107 years of record.
1,464 records set at Bliss 4 NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bliss 4 NW tied a daily record precipitation of 4.6 mm (0.18 in) on 25 January 2000.
About the Station
Location: Idaho, United States, 42.95 latitude, -115.01 longitude.
Elevation: 998 m (3,275 ft).
Period of record: 1894 to 2000, 107 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 Bliss 4 NW. 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 Bliss 4 NW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.3 C (64.9 F)
-34.4 C (-29.9 F)
n/a
n/a
Feb
20.6 C (69.1 F)
-35.6 C (-32.1 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-16.7 C (1.9 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-12.2 C (10.0 F)
n/a
n/a
May
38.3 C (100.9 F)
-8.3 C (17.1 F)
n/a
n/a
Jun
42.8 C (109.0 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
43.9 C (111.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
42.8 C (109.0 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
40.0 C (104.0 F)
-10.6 C (12.9 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-14.4 C (6.1 F)
n/a
n/a
Nov
25.0 C (77.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Dec
20.0 C (68.0 F)
-34.4 C (-29.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bliss 4 NW still stand. 1919 holds the most, with 62.
Standing records at Bliss 4 NW by the year they were set
Year set
Standing records
1894
2
1895
21
1896
4
1897
14
1917
27
1918
42
1919
62
1920
21
1921
16
1922
19
1923
13
1924
43
1925
15
1926
26
1927
20
1928
23
1929
31
1930
25
1931
22
1932
25
1933
12
1934
24
1935
20
1936
25
1937
21
1938
19
1939
19
1940
17
1941
8
1942
26
1943
17
1944
12
1945
10
1946
13
1947
11
1948
18
1949
25
1950
15
1951
12
1952
16
1953
24
1954
14
1955
15
1956
10
1957
3
1958
10
1959
12
1960
16
1961
17
1962
12
1963
23
1964
18
1965
25
1966
20
1967
10
1968
18
1969
15
1970
8
1971
13
1972
28
1973
8
1974
17
1975
12
1976
12
1977
16
1978
13
1979
6
1980
10
1981
8
1982
11
1983
12
1984
8
1985
34
1986
23
1987
15
1988
9
1989
18
1990
22
1991
7
1992
19
1993
19
1994
8
1995
21
1996
9
1998
3
1999
2
All-Time Record Progression
2 new records
2 all-time records were set at Bliss 4 NW between 30 November 1983 and 22 December 1990. Each dot is a new record.
When Bliss 4 NW set new all-time records
Date
Kind
Detail
1983-11-30
Record daily precipitation
Record daily precipitation 50.8 mm (2.0 in)
1990-12-22
Record low maximum temperature
Record low maximum temperature -19.4 C (-2.9 F)
Wettest Day of Each Month
Nov: 50.8 mm (2.0 in)
The wettest day on record for each calendar month at Bliss 4 NW. The most was 50.8 mm (2.0 in) on 30 November 1983.
Record daily precipitation for each month at Bliss 4 NW
Month
Record daily precipitation (mm)
Date
Jan
32.0 mm (1.3 in)
2 January 1936
Feb
23.4 mm (0.9 in)
20 February 1927
Mar
22.9 mm (0.9 in)
8 March 1943
Apr
18.8 mm (0.7 in)
9 April 1896
May
32.0 mm (1.3 in)
29 May 1953
Jun
26.7 mm (1.1 in)
24 June 1969
Jul
23.6 mm (0.9 in)
12 July 1932
Aug
29.2 mm (1.1 in)
16 August 1978
Sep
29.2 mm (1.1 in)
26 September 1923
Oct
24.6 mm (1.0 in)
4 October 1923
Nov
50.8 mm (2.0 in)
30 November 1983
Dec
35.1 mm (1.4 in)
19 December 1895
Period of Record Coverage
1894 to 2000
Complete yearUnder 90 percent of days
87 years of record at Bliss 4 NW, 1894 to 2000. 20 years have data for under 90 percent of days and are left out of rankings: 1894, 1896, 1897, 1917, 1918, 1919, 1922, 1924 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 56 complete years at Bliss 4 NW, 1895 to 1992. Blue stripes are years cooler than the station's own mean of 10.0 C (50.1 F); red stripes are warmer. The coolest year was 1985, at 6.9 C (44.5 F), and the warmest was 1958, at 11.5 C (52.6 F). The strongest colour marks a difference of 3.2 C (5.8 F).
Annual mean temperature at Bliss 4 NW as warming stripes, 1895 to 1992
Year
Annual mean temperature
Difference from the station mean
1895
9.2 C
-0.84 C
1921
10.2 C
+0.20 C
1923
10.0 C
-0.08 C
1927
10.1 C
+0.02 C
1929
8.4 C
-1.67 C
1931
9.2 C
-0.82 C
1935
8.7 C
-1.33 C
1938
9.4 C
-0.67 C
1939
10.4 C
+0.35 C
1941
10.6 C
+0.60 C
1942
9.3 C
-0.75 C
1943
10.8 C
+0.72 C
1944
9.7 C
-0.34 C
1945
10.1 C
+0.02 C
1946
10.2 C
+0.15 C
1947
11.1 C
+1.03 C
1948
10.1 C
+0.08 C
1949
9.9 C
-0.09 C
1950
10.1 C
+0.03 C
1951
9.5 C
-0.53 C
1952
9.6 C
-0.45 C
1954
10.4 C
+0.41 C
1955
9.2 C
-0.86 C
1956
10.0 C
-0.01 C
1957
10.0 C
-0.01 C
1958
11.5 C
+1.42 C
1959
10.5 C
+0.49 C
1960
10.5 C
+0.44 C
1962
9.9 C
-0.11 C
1963
10.5 C
+0.51 C
1964
8.8 C
-1.27 C
1965
10.2 C
+0.21 C
1966
10.7 C
+0.65 C
1967
10.6 C
+0.59 C
1968
10.2 C
+0.13 C
1969
10.1 C
+0.10 C
1970
10.0 C
+0.01 C
1971
9.5 C
-0.49 C
1972
9.9 C
-0.13 C
1973
10.6 C
+0.55 C
1974
10.4 C
+0.41 C
1975
9.4 C
-0.67 C
1976
9.6 C
-0.43 C
1977
10.4 C
+0.35 C
1978
10.4 C
+0.35 C
1979
10.2 C
+0.21 C
1980
10.5 C
+0.44 C
1981
11.0 C
+1.00 C
1982
8.7 C
-1.35 C
1983
10.3 C
+0.29 C
1985
6.9 C
-3.11 C
1986
10.9 C
+0.89 C
1988
11.0 C
+0.97 C
1989
10.3 C
+0.30 C
1990
10.8 C
+0.81 C
1992
11.4 C
+1.38 C
The fitted trend in annual mean temperature here over 1895 to 1992 is 0.10 C (-0.01 to 0.20) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.17 F (-0.01 to 0.36) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bliss 4 NW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.10 C (-0.01 to 0.20) per decade
0.17 F (-0.01 to 0.36) per decade
1895 to 1992
56
Not clearly different from zero
Mean daily maximum
-0.04 C (-0.15 to 0.08) per decade
-0.1 F (-0.3 to 0.1) per decade
1895 to 1992
56
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.4 F (0.2 to 0.6) per decade
1895 to 1992
56
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 2000
Yearly extremes at Bliss 4 NW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1924
39.4 C (102.9 F)
87
Coldest night (TNn)
-35.6 C (-32.1 F)
1933
-21.1 C (-6.0 F)
88
Wettest day (Rx1day)
50.8 mm (2.0 in)
1983
19.0 mm (0.7 in)
88
Wettest five days (Rx5day)
78.8 mm (3.1 in)
1964
31.9 mm (1.3 in)
88
Longest dry spell (CDD)
159 days
1920
59 days
88
Hottest day (TXx)
The hottest day of the year at Bliss 4 NW, 1894 to 2000. The record is 43.9 C (111.0 F) in 1924, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Bliss 4 NW by year
Year
Hottest day (TXx)
1894
13.9 C (57.0 F)
1895
40.0 C (104.0 F)
1896
32.2 C (90.0 F)
1897
41.1 C (106.0 F)
1917
41.7 C (107.1 F)
1918
42.8 C (109.0 F)
1919
41.1 C (106.0 F)
1920
42.8 C (109.0 F)
1921
41.1 C (106.0 F)
1922
40.0 C (104.0 F)
1923
40.6 C (105.1 F)
1924
43.9 C (111.0 F)
1925
42.8 C (109.0 F)
1926
42.2 C (108.0 F)
1927
38.9 C (102.0 F)
1928
37.2 C (99.0 F)
1929
39.4 C (102.9 F)
1930
41.1 C (106.0 F)
1931
41.7 C (107.1 F)
1932
38.3 C (100.9 F)
1933
n/a
1934
43.3 C (109.9 F)
1935
41.1 C (106.0 F)
1936
40.6 C (105.1 F)
1937
29.4 C (84.9 F)
1938
36.7 C (98.1 F)
1939
40.0 C (104.0 F)
1940
42.8 C (109.0 F)
1941
38.3 C (100.9 F)
1942
40.6 C (105.1 F)
1943
40.0 C (104.0 F)
1944
37.2 C (99.0 F)
1945
37.2 C (99.0 F)
1946
40.0 C (104.0 F)
1947
38.3 C (100.9 F)
1948
39.4 C (102.9 F)
1949
40.6 C (105.1 F)
1950
38.3 C (100.9 F)
1951
38.9 C (102.0 F)
1952
37.2 C (99.0 F)
1953
38.3 C (100.9 F)
1954
40.0 C (104.0 F)
1955
40.0 C (104.0 F)
1956
40.0 C (104.0 F)
1957
37.8 C (100.0 F)
1958
39.4 C (102.9 F)
1959
40.6 C (105.1 F)
1960
41.7 C (107.1 F)
1961
39.4 C (102.9 F)
1962
38.3 C (100.9 F)
1963
38.3 C (100.9 F)
1964
37.8 C (100.0 F)
1965
37.8 C (100.0 F)
1966
37.8 C (100.0 F)
1967
38.9 C (102.0 F)
1968
40.6 C (105.1 F)
1969
40.6 C (105.1 F)
1970
38.9 C (102.0 F)
1971
38.3 C (100.9 F)
1972
38.9 C (102.0 F)
1973
41.1 C (106.0 F)
1974
39.4 C (102.9 F)
1975
40.0 C (104.0 F)
1976
37.8 C (100.0 F)
1977
37.2 C (99.0 F)
1978
38.3 C (100.9 F)
1979
38.3 C (100.9 F)
1980
38.9 C (102.0 F)
1981
38.9 C (102.0 F)
1982
36.7 C (98.1 F)
1983
40.0 C (104.0 F)
1984
38.3 C (100.9 F)
1985
39.4 C (102.9 F)
1986
38.9 C (102.0 F)
1987
37.8 C (100.0 F)
1988
38.9 C (102.0 F)
1989
39.4 C (102.9 F)
1990
41.7 C (107.1 F)
1991
40.0 C (104.0 F)
1992
40.0 C (104.0 F)
1993
35.6 C (96.1 F)
1994
40.0 C (104.0 F)
1995
38.9 C (102.0 F)
1996
39.4 C (102.9 F)
1997
33.3 C (91.9 F)
1998
40.6 C (105.1 F)
1999
38.3 C (100.9 F)
2000
12.8 C (55.0 F)
Coldest night (TNn)
The coldest night of the year at Bliss 4 NW, 1894 to 2000. The record is -35.6 C (-32.1 F) in 1933, marked on the chart; the median year is -21.1 C (-6.0 F).
Coldest night (TNn) at Bliss 4 NW by year
Year
Coldest night (TNn)
1894
-15.0 C (5.0 F)
1895
-21.1 C (-6.0 F)
1896
-17.8 C (0.0 F)
1897
0.0 C (32.0 F)
1917
-12.2 C (10.0 F)
1918
-15.6 C (3.9 F)
1919
-27.8 C (-18.0 F)
1920
-16.1 C (3.0 F)
1921
-19.4 C (-2.9 F)
1922
-31.7 C (-25.1 F)
1923
-22.2 C (-8.0 F)
1924
-34.4 C (-29.9 F)
1925
-18.3 C (-0.9 F)
1926
-23.9 C (-11.0 F)
1927
-23.3 C (-9.9 F)
1928
-22.2 C (-8.0 F)
1929
-26.7 C (-16.1 F)
1930
-31.1 C (-24.0 F)
1931
-23.9 C (-11.0 F)
1932
-26.1 C (-15.0 F)
1933
-35.6 C (-32.1 F)
1934
-11.1 C (12.0 F)
1935
-21.7 C (-7.1 F)
1936
-27.8 C (-18.0 F)
1937
-34.4 C (-29.9 F)
1938
-15.0 C (5.0 F)
1939
-17.2 C (1.0 F)
1940
-17.2 C (1.0 F)
1941
-16.7 C (1.9 F)
1942
-25.6 C (-14.1 F)
1943
-19.4 C (-2.9 F)
1944
-18.3 C (-0.9 F)
1945
-17.8 C (0.0 F)
1946
-17.8 C (0.0 F)
1947
-19.4 C (-2.9 F)
1948
-23.3 C (-9.9 F)
1949
-30.6 C (-23.1 F)
1950
-26.1 C (-15.0 F)
1951
-23.3 C (-9.9 F)
1952
-22.8 C (-9.0 F)
1953
-12.8 C (9.0 F)
1954
-16.7 C (1.9 F)
1955
-23.9 C (-11.0 F)
1956
-25.0 C (-13.0 F)
1957
-25.6 C (-14.1 F)
1958
-13.9 C (7.0 F)
1959
-20.0 C (-4.0 F)
1960
-18.9 C (-2.0 F)
1961
-19.4 C (-2.9 F)
1962
-30.0 C (-22.0 F)
1963
-26.1 C (-15.0 F)
1964
-23.3 C (-9.9 F)
1965
-12.2 C (10.0 F)
1966
-16.1 C (3.0 F)
1967
-23.3 C (-9.9 F)
1968
-20.0 C (-4.0 F)
1969
-18.3 C (-0.9 F)
1970
-18.3 C (-0.9 F)
1971
-22.8 C (-9.0 F)
1972
-28.3 C (-18.9 F)
1973
-13.9 C (7.0 F)
1974
-23.3 C (-9.9 F)
1975
-17.8 C (0.0 F)
1976
-20.6 C (-5.1 F)
1977
-18.9 C (-2.0 F)
1978
-21.7 C (-7.1 F)
1979
-22.8 C (-9.0 F)
1980
-25.0 C (-13.0 F)
1981
-14.4 C (6.1 F)
1982
-25.6 C (-14.1 F)
1983
-22.2 C (-8.0 F)
1984
-29.4 C (-20.9 F)
1985
-23.9 C (-11.0 F)
1986
-13.9 C (7.0 F)
1987
-24.4 C (-11.9 F)
1988
-18.3 C (-0.9 F)
1989
-24.4 C (-11.9 F)
1990
-29.4 C (-20.9 F)
1991
-11.1 C (12.0 F)
1992
-23.3 C (-9.9 F)
1993
-19.4 C (-2.9 F)
1994
-12.8 C (9.0 F)
1995
-18.9 C (-2.0 F)
1996
-27.8 C (-18.0 F)
1997
-11.1 C (12.0 F)
1998
-21.1 C (-6.0 F)
1999
-10.6 C (12.9 F)
2000
-11.1 C (12.0 F)
Wettest day (Rx1day)
The wettest day of the year at Bliss 4 NW, 1894 to 2000. The record is 50.8 mm (2.0 in) in 1983, marked on the chart; the median year is 19.0 mm (0.7 in).
Wettest day (Rx1day) at Bliss 4 NW by year
Year
Wettest day (Rx1day)
1894
4.3 mm (0.17 in)
1895
35.1 mm (1.4 in)
1896
31.5 mm (1.2 in)
1897
8.1 mm (0.32 in)
1917
17.8 mm (0.7 in)
1918
16.5 mm (0.6 in)
1919
17.8 mm (0.7 in)
1920
19.1 mm (0.8 in)
1921
24.1 mm (0.9 in)
1922
14.7 mm (0.6 in)
1923
29.2 mm (1.1 in)
1924
16.5 mm (0.6 in)
1925
18.5 mm (0.7 in)
1926
10.9 mm (0.4 in)
1927
27.4 mm (1.1 in)
1928
13.0 mm (0.5 in)
1929
16.3 mm (0.6 in)
1930
26.7 mm (1.1 in)
1931
12.7 mm (0.5 in)
1932
23.6 mm (0.9 in)
1933
12.7 mm (0.5 in)
1934
13.5 mm (0.5 in)
1935
22.1 mm (0.9 in)
1936
32.0 mm (1.3 in)
1937
17.3 mm (0.7 in)
1938
21.3 mm (0.8 in)
1939
11.4 mm (0.4 in)
1940
19.8 mm (0.8 in)
1941
16.3 mm (0.6 in)
1942
14.2 mm (0.6 in)
1943
22.9 mm (0.9 in)
1944
18.3 mm (0.7 in)
1945
32.8 mm (1.3 in)
1946
24.6 mm (1.0 in)
1947
14.5 mm (0.6 in)
1948
18.3 mm (0.7 in)
1949
15.2 mm (0.6 in)
1950
20.3 mm (0.8 in)
1951
16.0 mm (0.6 in)
1952
16.5 mm (0.6 in)
1953
32.0 mm (1.3 in)
1954
17.8 mm (0.7 in)
1955
14.0 mm (0.6 in)
1956
20.3 mm (0.8 in)
1957
20.3 mm (0.8 in)
1958
22.6 mm (0.9 in)
1959
19.8 mm (0.8 in)
1960
15.7 mm (0.6 in)
1961
28.2 mm (1.1 in)
1962
18.5 mm (0.7 in)
1963
29.0 mm (1.1 in)
1964
34.8 mm (1.4 in)
1965
15.0 mm (0.6 in)
1966
12.7 mm (0.5 in)
1967
22.9 mm (0.9 in)
1968
26.9 mm (1.1 in)
1969
26.7 mm (1.1 in)
1970
26.4 mm (1.0 in)
1971
24.4 mm (1.0 in)
1972
26.4 mm (1.0 in)
1973
11.9 mm (0.5 in)
1974
17.0 mm (0.7 in)
1975
15.2 mm (0.6 in)
1976
17.8 mm (0.7 in)
1977
15.2 mm (0.6 in)
1978
29.2 mm (1.1 in)
1979
24.6 mm (1.0 in)
1980
22.4 mm (0.9 in)
1981
21.8 mm (0.9 in)
1982
21.6 mm (0.9 in)
1983
50.8 mm (2.0 in)
1984
26.2 mm (1.0 in)
1985
20.3 mm (0.8 in)
1986
18.5 mm (0.7 in)
1987
10.4 mm (0.4 in)
1988
18.8 mm (0.7 in)
1989
20.1 mm (0.8 in)
1990
25.7 mm (1.0 in)
1991
20.8 mm (0.8 in)
1992
18.0 mm (0.7 in)
1993
22.1 mm (0.9 in)
1994
14.2 mm (0.6 in)
1995
23.6 mm (0.9 in)
1996
21.6 mm (0.9 in)
1997
8.6 mm (0.34 in)
1998
8.1 mm (0.32 in)
1999
13.7 mm (0.5 in)
2000
14.7 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bliss 4 NW, 1894 to 2000. The record is 78.8 mm (3.1 in) in 1964, marked on the chart; the median year is 31.9 mm (1.3 in).
Wettest five days (Rx5day) at Bliss 4 NW by year
Year
Wettest five days (Rx5day)
1894
5.9 mm (0.23 in)
1895
37.4 mm (1.5 in)
1896
31.5 mm (1.2 in)
1897
8.1 mm (0.32 in)
1917
38.1 mm (1.5 in)
1918
22.6 mm (0.9 in)
1919
24.4 mm (1.0 in)
1920
22.6 mm (0.9 in)
1921
40.2 mm (1.6 in)
1922
18.7 mm (0.7 in)
1923
48.6 mm (1.9 in)
1924
27.1 mm (1.1 in)
1925
27.7 mm (1.1 in)
1926
25.9 mm (1.0 in)
1927
61.2 mm (2.4 in)
1928
24.1 mm (0.9 in)
1929
28.0 mm (1.1 in)
1930
39.8 mm (1.6 in)
1931
27.1 mm (1.1 in)
1932
41.1 mm (1.6 in)
1933
27.9 mm (1.1 in)
1934
24.8 mm (1.0 in)
1935
35.0 mm (1.4 in)
1936
41.4 mm (1.6 in)
1937
44.0 mm (1.7 in)
1938
46.0 mm (1.8 in)
1939
19.5 mm (0.8 in)
1940
37.4 mm (1.5 in)
1941
20.6 mm (0.8 in)
1942
30.2 mm (1.2 in)
1943
31.5 mm (1.2 in)
1944
35.5 mm (1.4 in)
1945
43.2 mm (1.7 in)
1946
35.8 mm (1.4 in)
1947
20.8 mm (0.8 in)
1948
31.7 mm (1.2 in)
1949
27.7 mm (1.1 in)
1950
30.7 mm (1.2 in)
1951
26.2 mm (1.0 in)
1952
22.4 mm (0.9 in)
1953
50.5 mm (2.0 in)
1954
25.4 mm (1.0 in)
1955
29.3 mm (1.2 in)
1956
28.4 mm (1.1 in)
1957
37.1 mm (1.5 in)
1958
41.1 mm (1.6 in)
1959
34.0 mm (1.3 in)
1960
29.8 mm (1.2 in)
1961
28.5 mm (1.1 in)
1962
35.5 mm (1.4 in)
1963
56.2 mm (2.2 in)
1964
78.8 mm (3.1 in)
1965
18.6 mm (0.7 in)
1966
17.5 mm (0.7 in)
1967
27.4 mm (1.1 in)
1968
63.4 mm (2.5 in)
1969
32.5 mm (1.3 in)
1970
38.5 mm (1.5 in)
1971
48.4 mm (1.9 in)
1972
62.7 mm (2.5 in)
1973
24.9 mm (1.0 in)
1974
23.8 mm (0.9 in)
1975
41.4 mm (1.6 in)
1976
30.5 mm (1.2 in)
1977
45.2 mm (1.8 in)
1978
36.4 mm (1.4 in)
1979
39.1 mm (1.5 in)
1980
31.2 mm (1.2 in)
1981
44.6 mm (1.8 in)
1982
42.0 mm (1.7 in)
1983
70.9 mm (2.8 in)
1984
39.6 mm (1.6 in)
1985
38.6 mm (1.5 in)
1986
44.7 mm (1.8 in)
1987
17.2 mm (0.7 in)
1988
23.6 mm (0.9 in)
1989
33.8 mm (1.3 in)
1990
42.9 mm (1.7 in)
1991
41.8 mm (1.6 in)
1992
36.3 mm (1.4 in)
1993
54.1 mm (2.1 in)
1994
28.0 mm (1.1 in)
1995
32.0 mm (1.3 in)
1996
40.8 mm (1.6 in)
1997
6.1 mm (0.24 in)
1998
15.2 mm (0.6 in)
1999
27.7 mm (1.1 in)
2000
24.6 mm (1.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bliss 4 NW, 1894 to 2000. The record is 159 days in 1920, marked on the chart; the median year is 59 days.
Longest dry spell (CDD) at Bliss 4 NW by year
Year
Longest dry spell (CDD)
1894
14 days
1895
55 days
1896
18 days
1897
74 days
1917
60 days
1918
46 days
1919
95 days
1920
159 days
1921
38 days
1922
44 days
1923
53 days
1924
117 days
1925
33 days
1926
82 days
1927
70 days
1928
118 days
1929
70 days
1930
45 days
1931
64 days
1932
72 days
1933
55 days
1934
121 days
1935
101 days
1936
106 days
1937
56 days
1938
85 days
1939
86 days
1940
133 days
1941
67 days
1942
130 days
1943
93 days
1944
48 days
1945
83 days
1946
37 days
1947
65 days
1948
40 days
1949
70 days
1950
45 days
1951
52 days
1952
117 days
1953
124 days
1954
51 days
1955
74 days
1956
81 days
1957
73 days
1958
79 days
1959
98 days
1960
48 days
1961
53 days
1962
45 days
1963
41 days
1964
58 days
1965
55 days
1966
52 days
1967
55 days
1968
65 days
1969
74 days
1970
40 days
1971
59 days
1972
80 days
1973
41 days
1974
90 days
1975
34 days
1976
67 days
1977
48 days
1978
53 days
1979
45 days
1980
45 days
1981
71 days
1982
31 days
1983
35 days
1984
32 days
1985
49 days
1986
74 days
1987
102 days
1988
83 days
1989
35 days
1990
63 days
1991
58 days
1992
52 days
1993
46 days
1994
91 days
1995
62 days
1996
82 days
1997
44 days
1998
24 days
1999
42 days
2000
6 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
56 years with a frost
Across 56 years with a frost, the median last spring frost at Bliss 4 NW falls on 19 May and the median first autumn frost on 26 September, which leaves a median of 129 days between them.
Fitted over all years, the growing season changes by +5.3 days per decade at this station.
Frost dates and growing season at Bliss 4 NW
Measure
Median, all years
Earliest period
Recent period (1959 to 1992)
Recent against earliest
Fitted trend
Last spring frost
19 May
n/a
17 May
n/a
-2.9 days per decade
First autumn frost
26 September
n/a
28 September
n/a
+2.4 days per decade
Growing days
129 days
n/a
131 days
n/a
+5.3 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
76 years, 1895 to 1996
A day with at least 20.1 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 41.7 mm (1.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Bliss 4 NW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
20.1 mm (0.8 in)
5 years
26.0 mm (1.0 in)
10 years
29.9 mm (1.2 in)
25 years
34.7 mm (1.4 in)
50 years
38.3 mm (1.5 in)
100 years
41.7 mm (1.6 in)
Longer than the 76 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, 76 years of values from 1895 to 1996.
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: 50.8 mm (2.0 in) in 1983; 35.1 mm (1.4 in) in 1895; 34.8 mm (1.4 in) in 1964.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Bliss 4 NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bliss 4 NW 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.