Record envelope, standing records and threshold days for Bison 3NW (USC00140865), Kansas, United States, with 95 years of record.
Key Facts for Bison 3NW
Bison 3NW (USC00140865) is a weather station in Kansas, United States at 38.56 latitude and -99.23 longitude, 622 m (2,040 ft) above sea level.
The station reports from 1923 to 2017, 95 years of record.
1,464 records set at Bison 3NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bison 3NW tied a daily record high maximum temperature of 41.7 C (107.1 F) on 22 July 2017.
About the Station
Location: Kansas, United States, 38.56 latitude, -99.23 longitude.
Elevation: 622 m (2,040 ft).
Period of record: 1923 to 2017, 95 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 Bison 3NW. 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 Bison 3NW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
28.9 C (84.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Feb
32.2 C (90.0 F)
-31.1 C (-24.0 F)
n/a
n/a
Mar
35.0 C (95.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Apr
39.4 C (102.9 F)
-14.4 C (6.1 F)
n/a
n/a
May
41.7 C (107.1 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
45.0 C (113.0 F)
2.2 C (36.0 F)
n/a
n/a
Jul
46.7 C (116.1 F)
6.1 C (43.0 F)
n/a
n/a
Aug
46.1 C (115.0 F)
3.9 C (39.0 F)
n/a
n/a
Sep
44.4 C (111.9 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
37.8 C (100.0 F)
-10.6 C (12.9 F)
n/a
n/a
Nov
33.9 C (93.0 F)
-22.8 C (-9.0 F)
n/a
n/a
Dec
28.3 C (82.9 F)
-31.1 C (-24.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bison 3NW still stand. 1936 holds the most, with 53.
Standing records at Bison 3NW by the year they were set
Year set
Standing records
1923
6
1924
26
1925
24
1926
17
1927
13
1928
25
1929
12
1930
21
1931
29
1932
20
1933
29
1934
40
1935
16
1936
53
1937
24
1938
18
1939
26
1940
26
1941
12
1942
17
1943
26
1944
13
1945
17
1946
23
1947
25
1948
12
1949
11
1950
14
1951
12
1952
21
1953
20
1954
17
1955
16
1956
20
1957
4
1958
10
1959
11
1960
19
1961
6
1962
24
1963
30
1964
11
1965
11
1966
13
1967
16
1968
12
1969
8
1970
10
1971
10
1972
16
1973
7
1974
13
1975
13
1976
12
1977
7
1978
12
1979
16
1980
9
1981
14
1982
12
1983
21
1984
9
1985
16
1986
8
1987
6
1988
7
1989
38
1990
12
1991
20
1992
13
1993
9
1994
11
1995
19
1996
14
1997
16
1998
6
1999
5
2000
10
2001
7
2002
10
2003
15
2004
17
2005
10
2006
17
2007
9
2008
7
2009
16
2011
8
2012
18
2013
13
2014
23
2015
7
2016
10
2017
10
All-Time Record Progression
1 new records
1 all-time records were set at Bison 3NW between 21 December 1983 and 21 December 1983. Each dot is a new record.
When Bison 3NW set new all-time records
Date
Kind
Detail
1983-12-21
Record low maximum temperature
Record low maximum temperature -20.0 C (-4.0 F)
Wettest Day of Each Month
Aug: 204.5 mm (8.1 in)
The wettest day on record for each calendar month at Bison 3NW. The most was 204.5 mm (8.1 in) on 13 August 1927.
Record daily precipitation for each month at Bison 3NW
Month
Record daily precipitation (mm)
Date
Jan
38.1 mm (1.5 in)
30 January 1994
Feb
58.2 mm (2.3 in)
27 February 1948
Mar
70.1 mm (2.8 in)
24 March 1957
Apr
84.6 mm (3.3 in)
14 April 1987
May
94.5 mm (3.7 in)
26 May 2008
Jun
105.9 mm (4.2 in)
15 June 2004
Jul
95.3 mm (3.8 in)
21 July 1990
Aug
204.5 mm (8.1 in)
13 August 1927
Sep
86.9 mm (3.4 in)
21 September 1959
Oct
77.0 mm (3.0 in)
2 October 1950
Nov
71.1 mm (2.8 in)
15 November 1996
Dec
42.9 mm (1.7 in)
15 December 1984
Period of Record Coverage
1923 to 2017
Complete yearUnder 90 percent of days
95 years of record at Bison 3NW, 1923 to 2017. 7 years have data for under 90 percent of days and are left out of rankings: 1923, 1991, 1998, 1999, 2015, 2016, 2017.
Cooler than the station meanWarmer than the station mean
One stripe for each of 87 complete years at Bison 3NW, 1924 to 2014. Blue stripes are years cooler than the station's own mean of 12.7 C (54.8 F); red stripes are warmer. The coolest year was 2008, at 11.0 C (51.8 F), and the warmest was 1954, at 14.6 C (58.3 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Bison 3NW as warming stripes, 1924 to 2014
Year
Annual mean temperature
Difference from the station mean
1924
11.4 C
-1.29 C
1925
12.8 C
+0.14 C
1926
12.7 C
+0.05 C
1927
12.4 C
-0.25 C
1928
12.4 C
-0.28 C
1929
11.6 C
-1.06 C
1930
12.8 C
+0.18 C
1931
13.7 C
+1.08 C
1932
11.9 C
-0.71 C
1933
14.2 C
+1.58 C
1934
14.6 C
+1.93 C
1935
13.4 C
+0.70 C
1936
13.4 C
+0.73 C
1937
12.5 C
-0.18 C
1938
14.1 C
+1.46 C
1939
14.2 C
+1.58 C
1940
12.4 C
-0.23 C
1941
13.1 C
+0.42 C
1942
12.5 C
-0.14 C
1943
12.9 C
+0.28 C
1944
12.5 C
-0.19 C
1945
12.4 C
-0.25 C
1946
14.2 C
+1.55 C
1947
12.7 C
+0.01 C
1948
12.1 C
-0.56 C
1949
12.7 C
+0.02 C
1950
12.6 C
-0.09 C
1951
11.5 C
-1.11 C
1952
13.2 C
+0.53 C
1953
14.1 C
+1.46 C
1954
14.6 C
+1.95 C
1955
13.1 C
+0.42 C
1956
13.9 C
+1.28 C
1957
12.7 C
+0.04 C
1958
12.5 C
-0.19 C
1959
13.0 C
+0.33 C
1960
12.2 C
-0.50 C
1961
12.5 C
-0.18 C
1962
13.5 C
+0.84 C
1963
14.5 C
+1.83 C
1964
13.5 C
+0.85 C
1965
13.1 C
+0.49 C
1966
12.5 C
-0.13 C
1967
13.0 C
+0.34 C
1968
13.0 C
+0.30 C
1969
12.4 C
-0.24 C
1970
12.8 C
+0.15 C
1971
12.6 C
-0.07 C
1972
12.2 C
-0.48 C
1973
12.5 C
-0.20 C
1974
13.1 C
+0.48 C
1975
12.9 C
+0.28 C
1976
13.1 C
+0.45 C
1977
13.0 C
+0.31 C
1978
11.6 C
-1.07 C
1979
11.4 C
-1.30 C
1980
12.7 C
+0.04 C
1981
13.0 C
+0.39 C
1982
11.1 C
-1.56 C
1983
11.7 C
-0.93 C
1984
12.4 C
-0.25 C
1985
11.4 C
-1.30 C
1986
13.5 C
+0.84 C
1987
12.9 C
+0.29 C
1988
12.6 C
-0.04 C
1989
11.8 C
-0.89 C
1990
12.9 C
+0.27 C
1992
12.4 C
-0.29 C
1993
11.1 C
-1.53 C
1994
13.0 C
+0.36 C
1995
12.1 C
-0.57 C
1996
11.9 C
-0.75 C
1997
12.1 C
-0.51 C
2000
12.3 C
-0.34 C
2001
12.6 C
-0.05 C
2002
12.4 C
-0.21 C
2003
12.2 C
-0.50 C
2004
12.2 C
-0.43 C
2005
12.8 C
+0.13 C
2006
13.0 C
+0.32 C
2007
11.8 C
-0.81 C
2008
11.0 C
-1.64 C
2009
11.0 C
-1.63 C
2010
12.3 C
-0.35 C
2011
12.0 C
-0.63 C
2012
13.6 C
+0.95 C
2014
11.1 C
-1.51 C
The annual mean temperature here has fallen by 0.1 C (0.1 to 0.2) per decade over 1924 to 2014. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 87 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bison 3NW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.1 C (-0.2 to -0.1) per decade
-0.2 F (-0.3 to -0.1) per decade
1924 to 2014
87
Fall
Mean daily maximum
-0.1 C (-0.2 to 0.0) per decade
-0.2 F (-0.3 to 0.0) per decade
1924 to 2014
87
Not clearly different from zero
Mean daily minimum
-0.1 C (-0.2 to -0.1) per decade
-0.3 F (-0.4 to -0.2) per decade
1924 to 2014
87
Fall
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
1923 to 2017
Yearly extremes at Bison 3NW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
46.7 C (116.1 F)
1934
41.7 C (107.1 F)
95
Coldest night (TNn)
-31.1 C (-24.0 F)
1933
-22.8 C (-9.0 F)
95
Wettest day (Rx1day)
204.5 mm (8.1 in)
1927
51.8 mm (2.0 in)
95
Wettest five days (Rx5day)
246.9 mm (9.7 in)
1927
79.3 mm (3.1 in)
95
Longest dry spell (CDD)
109 days
1936
38 days
95
Hottest day (TXx)
The hottest day of the year at Bison 3NW, 1923 to 2017. The record is 46.7 C (116.1 F) in 1934, marked on the chart; the median year is 41.7 C (107.1 F).
Hottest day (TXx) at Bison 3NW by year
Year
Hottest day (TXx)
1923
41.1 C (106.0 F)
1924
41.1 C (106.0 F)
1925
41.1 C (106.0 F)
1926
42.8 C (109.0 F)
1927
39.4 C (102.9 F)
1928
39.4 C (102.9 F)
1929
42.2 C (108.0 F)
1930
43.3 C (109.9 F)
1931
42.2 C (108.0 F)
1932
40.6 C (105.1 F)
1933
45.0 C (113.0 F)
1934
46.7 C (116.1 F)
1935
43.3 C (109.9 F)
1936
46.1 C (115.0 F)
1937
43.9 C (111.0 F)
1938
42.2 C (108.0 F)
1939
43.3 C (109.9 F)
1940
45.0 C (113.0 F)
1941
38.9 C (102.0 F)
1942
41.7 C (107.1 F)
1943
43.3 C (109.9 F)
1944
41.1 C (106.0 F)
1945
41.1 C (106.0 F)
1946
45.6 C (114.1 F)
1947
44.4 C (111.9 F)
1948
40.0 C (104.0 F)
1949
42.2 C (108.0 F)
1950
43.3 C (109.9 F)
1951
41.1 C (106.0 F)
1952
43.3 C (109.9 F)
1953
44.4 C (111.9 F)
1954
46.1 C (115.0 F)
1955
40.6 C (105.1 F)
1956
43.9 C (111.0 F)
1957
40.6 C (105.1 F)
1958
38.3 C (100.9 F)
1959
41.1 C (106.0 F)
1960
42.2 C (108.0 F)
1961
41.1 C (106.0 F)
1962
42.2 C (108.0 F)
1963
41.1 C (106.0 F)
1964
42.2 C (108.0 F)
1965
40.6 C (105.1 F)
1966
42.2 C (108.0 F)
1967
38.3 C (100.9 F)
1968
41.1 C (106.0 F)
1969
41.1 C (106.0 F)
1970
43.3 C (109.9 F)
1971
42.2 C (108.0 F)
1972
38.9 C (102.0 F)
1973
41.7 C (107.1 F)
1974
43.9 C (111.0 F)
1975
42.2 C (108.0 F)
1976
42.2 C (108.0 F)
1977
41.1 C (106.0 F)
1978
41.7 C (107.1 F)
1979
41.1 C (106.0 F)
1980
44.4 C (111.9 F)
1981
39.4 C (102.9 F)
1982
41.1 C (106.0 F)
1983
44.4 C (111.9 F)
1984
42.8 C (109.0 F)
1985
42.8 C (109.0 F)
1986
42.8 C (109.0 F)
1987
40.6 C (105.1 F)
1988
43.3 C (109.9 F)
1989
40.6 C (105.1 F)
1990
41.1 C (106.0 F)
1991
42.8 C (109.0 F)
1992
37.8 C (100.0 F)
1993
40.0 C (104.0 F)
1994
41.7 C (107.1 F)
1995
42.8 C (109.0 F)
1996
42.2 C (108.0 F)
1997
40.0 C (104.0 F)
1998
41.1 C (106.0 F)
1999
40.0 C (104.0 F)
2000
39.4 C (102.9 F)
2001
41.1 C (106.0 F)
2002
43.3 C (109.9 F)
2003
42.8 C (109.0 F)
2004
38.3 C (100.9 F)
2005
40.0 C (104.0 F)
2006
42.8 C (109.0 F)
2007
37.8 C (100.0 F)
2008
38.9 C (102.0 F)
2009
38.3 C (100.9 F)
2010
42.2 C (108.0 F)
2011
42.2 C (108.0 F)
2012
45.0 C (113.0 F)
2013
43.3 C (109.9 F)
2014
40.0 C (104.0 F)
2015
42.2 C (108.0 F)
2016
40.0 C (104.0 F)
2017
41.7 C (107.1 F)
Coldest night (TNn)
The coldest night of the year at Bison 3NW, 1923 to 2017. The record is -31.1 C (-24.0 F) in 1933, marked on the chart; the median year is -22.8 C (-9.0 F).
Coldest night (TNn) at Bison 3NW by year
Year
Coldest night (TNn)
1923
-19.4 C (-2.9 F)
1924
-27.2 C (-17.0 F)
1925
-24.4 C (-11.9 F)
1926
-18.9 C (-2.0 F)
1927
-22.2 C (-8.0 F)
1928
-22.2 C (-8.0 F)
1929
-28.3 C (-18.9 F)
1930
-26.1 C (-15.0 F)
1931
-17.8 C (0.0 F)
1932
-26.1 C (-15.0 F)
1933
-31.1 C (-24.0 F)
1934
-21.1 C (-6.0 F)
1935
-23.3 C (-9.9 F)
1936
-26.1 C (-15.0 F)
1937
-23.3 C (-9.9 F)
1938
-21.1 C (-6.0 F)
1939
-25.0 C (-13.0 F)
1940
-27.2 C (-17.0 F)
1941
-17.2 C (1.0 F)
1942
-25.6 C (-14.1 F)
1943
-28.3 C (-18.9 F)
1944
-23.3 C (-9.9 F)
1945
-21.7 C (-7.1 F)
1946
-19.4 C (-2.9 F)
1947
-30.6 C (-23.1 F)
1948
-30.6 C (-23.1 F)
1949
-21.7 C (-7.1 F)
1950
-22.2 C (-8.0 F)
1951
-27.2 C (-17.0 F)
1952
-21.1 C (-6.0 F)
1953
-16.7 C (1.9 F)
1954
-20.6 C (-5.1 F)
1955
-20.0 C (-4.0 F)
1956
-22.2 C (-8.0 F)
1957
-20.6 C (-5.1 F)
1958
-18.9 C (-2.0 F)
1959
-27.8 C (-18.0 F)
1960
-26.7 C (-16.1 F)
1961
-24.4 C (-11.9 F)
1962
-25.0 C (-13.0 F)
1963
-25.0 C (-13.0 F)
1964
-21.7 C (-7.1 F)
1965
-19.4 C (-2.9 F)
1966
-25.6 C (-14.1 F)
1967
-20.6 C (-5.1 F)
1968
-22.2 C (-8.0 F)
1969
-16.7 C (1.9 F)
1970
-20.6 C (-5.1 F)
1971
-25.6 C (-14.1 F)
1972
-22.8 C (-9.0 F)
1973
-22.2 C (-8.0 F)
1974
-27.2 C (-17.0 F)
1975
-19.4 C (-2.9 F)
1976
-22.2 C (-8.0 F)
1977
-21.1 C (-6.0 F)
1978
-23.3 C (-9.9 F)
1979
-26.7 C (-16.1 F)
1980
-25.0 C (-13.0 F)
1981
-25.0 C (-13.0 F)
1982
-26.1 C (-15.0 F)
1983
-24.4 C (-11.9 F)
1984
-24.4 C (-11.9 F)
1985
-25.0 C (-13.0 F)
1986
-17.2 C (1.0 F)
1987
-16.1 C (3.0 F)
1988
-26.1 C (-15.0 F)
1989
-31.1 C (-24.0 F)
1990
-22.2 C (-8.0 F)
1991
-19.4 C (-2.9 F)
1992
-15.6 C (3.9 F)
1993
-20.0 C (-4.0 F)
1994
-20.0 C (-4.0 F)
1995
-20.0 C (-4.0 F)
1996
-25.0 C (-13.0 F)
1997
-20.6 C (-5.1 F)
1998
-22.8 C (-9.0 F)
1999
-17.8 C (0.0 F)
2000
-18.9 C (-2.0 F)
2001
-24.4 C (-11.9 F)
2002
-22.8 C (-9.0 F)
2003
-22.8 C (-9.0 F)
2004
-22.8 C (-9.0 F)
2005
-24.4 C (-11.9 F)
2006
-18.3 C (-0.9 F)
2007
-22.8 C (-9.0 F)
2008
-20.6 C (-5.1 F)
2009
-25.6 C (-14.1 F)
2010
-21.1 C (-6.0 F)
2011
-25.0 C (-13.0 F)
2012
-19.4 C (-2.9 F)
2013
-21.7 C (-7.1 F)
2014
-25.6 C (-14.1 F)
2015
-19.4 C (-2.9 F)
2016
-29.4 C (-20.9 F)
2017
-20.0 C (-4.0 F)
Wettest day (Rx1day)
The wettest day of the year at Bison 3NW, 1923 to 2017. The record is 204.5 mm (8.1 in) in 1927, marked on the chart; the median year is 51.8 mm (2.0 in).
Wettest day (Rx1day) at Bison 3NW by year
Year
Wettest day (Rx1day)
1923
60.2 mm (2.4 in)
1924
48.0 mm (1.9 in)
1925
43.4 mm (1.7 in)
1926
71.1 mm (2.8 in)
1927
204.5 mm (8.1 in)
1928
89.7 mm (3.5 in)
1929
58.2 mm (2.3 in)
1930
50.3 mm (2.0 in)
1931
38.6 mm (1.5 in)
1932
41.1 mm (1.6 in)
1933
48.5 mm (1.9 in)
1934
49.8 mm (2.0 in)
1935
43.7 mm (1.7 in)
1936
46.2 mm (1.8 in)
1937
64.5 mm (2.5 in)
1938
41.1 mm (1.6 in)
1939
42.9 mm (1.7 in)
1940
31.8 mm (1.3 in)
1941
53.6 mm (2.1 in)
1942
47.5 mm (1.9 in)
1943
26.4 mm (1.0 in)
1944
74.7 mm (2.9 in)
1945
72.9 mm (2.9 in)
1946
86.4 mm (3.4 in)
1947
49.8 mm (2.0 in)
1948
67.6 mm (2.7 in)
1949
74.2 mm (2.9 in)
1950
77.0 mm (3.0 in)
1951
34.3 mm (1.4 in)
1952
44.5 mm (1.8 in)
1953
127.0 mm (5.0 in)
1954
57.7 mm (2.3 in)
1955
41.1 mm (1.6 in)
1956
39.1 mm (1.5 in)
1957
70.1 mm (2.8 in)
1958
64.8 mm (2.6 in)
1959
86.9 mm (3.4 in)
1960
44.5 mm (1.8 in)
1961
89.7 mm (3.5 in)
1962
58.9 mm (2.3 in)
1963
51.8 mm (2.0 in)
1964
48.3 mm (1.9 in)
1965
39.9 mm (1.6 in)
1966
46.5 mm (1.8 in)
1967
49.5 mm (1.9 in)
1968
61.0 mm (2.4 in)
1969
65.3 mm (2.6 in)
1970
52.1 mm (2.1 in)
1971
64.0 mm (2.5 in)
1972
51.8 mm (2.0 in)
1973
57.7 mm (2.3 in)
1974
38.9 mm (1.5 in)
1975
38.9 mm (1.5 in)
1976
73.2 mm (2.9 in)
1977
48.5 mm (1.9 in)
1978
81.8 mm (3.2 in)
1979
53.6 mm (2.1 in)
1980
45.2 mm (1.8 in)
1981
65.0 mm (2.6 in)
1982
45.7 mm (1.8 in)
1983
23.6 mm (0.9 in)
1984
51.8 mm (2.0 in)
1985
41.9 mm (1.6 in)
1986
50.8 mm (2.0 in)
1987
84.6 mm (3.3 in)
1988
38.1 mm (1.5 in)
1989
46.2 mm (1.8 in)
1990
95.3 mm (3.8 in)
1991
58.7 mm (2.3 in)
1992
43.4 mm (1.7 in)
1993
46.2 mm (1.8 in)
1994
41.9 mm (1.6 in)
1995
38.1 mm (1.5 in)
1996
71.1 mm (2.8 in)
1997
50.8 mm (2.0 in)
1998
48.8 mm (1.9 in)
1999
38.4 mm (1.5 in)
2000
56.9 mm (2.2 in)
2001
81.5 mm (3.2 in)
2002
42.4 mm (1.7 in)
2003
40.9 mm (1.6 in)
2004
105.9 mm (4.2 in)
2005
29.5 mm (1.2 in)
2006
55.6 mm (2.2 in)
2007
63.8 mm (2.5 in)
2008
94.5 mm (3.7 in)
2009
57.7 mm (2.3 in)
2010
100.3 mm (3.9 in)
2011
88.4 mm (3.5 in)
2012
34.5 mm (1.4 in)
2013
40.6 mm (1.6 in)
2014
62.0 mm (2.4 in)
2015
69.3 mm (2.7 in)
2016
65.3 mm (2.6 in)
2017
59.9 mm (2.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bison 3NW, 1923 to 2017. The record is 246.9 mm (9.7 in) in 1927, marked on the chart; the median year is 79.3 mm (3.1 in).
Wettest five days (Rx5day) at Bison 3NW by year
Year
Wettest five days (Rx5day)
1923
112.8 mm (4.4 in)
1924
68.1 mm (2.7 in)
1925
54.5 mm (2.1 in)
1926
78.0 mm (3.1 in)
1927
246.9 mm (9.7 in)
1928
117.9 mm (4.6 in)
1929
59.0 mm (2.3 in)
1930
71.9 mm (2.8 in)
1931
57.6 mm (2.3 in)
1932
56.6 mm (2.2 in)
1933
97.0 mm (3.8 in)
1934
68.6 mm (2.7 in)
1935
76.0 mm (3.0 in)
1936
69.4 mm (2.7 in)
1937
110.8 mm (4.4 in)
1938
80.7 mm (3.2 in)
1939
44.2 mm (1.7 in)
1940
45.8 mm (1.8 in)
1941
98.0 mm (3.9 in)
1942
94.5 mm (3.7 in)
1943
38.9 mm (1.5 in)
1944
74.7 mm (2.9 in)
1945
114.0 mm (4.5 in)
1946
87.7 mm (3.5 in)
1947
59.2 mm (2.3 in)
1948
100.6 mm (4.0 in)
1949
74.2 mm (2.9 in)
1950
109.3 mm (4.3 in)
1951
63.5 mm (2.5 in)
1952
50.3 mm (2.0 in)
1953
134.3 mm (5.3 in)
1954
78.3 mm (3.1 in)
1955
59.5 mm (2.3 in)
1956
86.1 mm (3.4 in)
1957
108.7 mm (4.3 in)
1958
109.2 mm (4.3 in)
1959
153.4 mm (6.0 in)
1960
86.4 mm (3.4 in)
1961
136.2 mm (5.4 in)
1962
83.1 mm (3.3 in)
1963
64.2 mm (2.5 in)
1964
104.6 mm (4.1 in)
1965
84.5 mm (3.3 in)
1966
57.2 mm (2.3 in)
1967
75.1 mm (3.0 in)
1968
93.3 mm (3.7 in)
1969
87.9 mm (3.5 in)
1970
119.1 mm (4.7 in)
1971
79.2 mm (3.1 in)
1972
67.0 mm (2.6 in)
1973
89.5 mm (3.5 in)
1974
43.0 mm (1.7 in)
1975
57.6 mm (2.3 in)
1976
111.8 mm (4.4 in)
1977
87.9 mm (3.5 in)
1978
82.3 mm (3.2 in)
1979
73.6 mm (2.9 in)
1980
74.1 mm (2.9 in)
1981
79.3 mm (3.1 in)
1982
54.1 mm (2.1 in)
1983
54.0 mm (2.1 in)
1984
86.8 mm (3.4 in)
1985
77.8 mm (3.1 in)
1986
80.2 mm (3.2 in)
1987
94.0 mm (3.7 in)
1988
64.1 mm (2.5 in)
1989
76.5 mm (3.0 in)
1990
113.8 mm (4.5 in)
1991
86.4 mm (3.4 in)
1992
88.6 mm (3.5 in)
1993
84.7 mm (3.3 in)
1994
52.1 mm (2.1 in)
1995
69.1 mm (2.7 in)
1996
52.9 mm (2.1 in)
1997
35.6 mm (1.4 in)
1998
101.4 mm (4.0 in)
1999
52.3 mm (2.1 in)
2000
149.6 mm (5.9 in)
2001
113.2 mm (4.5 in)
2002
54.6 mm (2.1 in)
2003
70.5 mm (2.8 in)
2004
203.0 mm (8.0 in)
2005
66.6 mm (2.6 in)
2006
96.3 mm (3.8 in)
2007
120.4 mm (4.7 in)
2008
130.3 mm (5.1 in)
2009
65.0 mm (2.6 in)
2010
109.4 mm (4.3 in)
2011
40.7 mm (1.6 in)
2012
54.6 mm (2.1 in)
2013
53.8 mm (2.1 in)
2014
109.5 mm (4.3 in)
2015
70.6 mm (2.8 in)
2016
110.8 mm (4.4 in)
2017
99.0 mm (3.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bison 3NW, 1923 to 2017. The record is 109 days in 1936, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Bison 3NW by year
Year
Longest dry spell (CDD)
1923
28 days
1924
40 days
1925
52 days
1926
34 days
1927
34 days
1928
39 days
1929
31 days
1930
38 days
1931
51 days
1932
34 days
1933
31 days
1934
35 days
1935
34 days
1936
109 days
1937
27 days
1938
55 days
1939
41 days
1940
28 days
1941
18 days
1942
42 days
1943
32 days
1944
31 days
1945
61 days
1946
52 days
1947
50 days
1948
28 days
1949
47 days
1950
56 days
1951
18 days
1952
76 days
1953
41 days
1954
39 days
1955
40 days
1956
40 days
1957
25 days
1958
34 days
1959
43 days
1960
27 days
1961
35 days
1962
33 days
1963
35 days
1964
34 days
1965
52 days
1966
51 days
1967
52 days
1968
51 days
1969
43 days
1970
43 days
1971
31 days
1972
63 days
1973
27 days
1974
52 days
1975
47 days
1976
51 days
1977
31 days
1978
30 days
1979
43 days
1980
39 days
1981
31 days
1982
56 days
1983
30 days
1984
24 days
1985
20 days
1986
34 days
1987
28 days
1988
42 days
1989
64 days
1990
27 days
1991
28 days
1992
21 days
1993
15 days
1994
25 days
1995
28 days
1996
28 days
1997
31 days
1998
46 days
1999
54 days
2000
43 days
2001
39 days
2002
49 days
2003
34 days
2004
34 days
2005
25 days
2006
64 days
2007
40 days
2008
21 days
2009
70 days
2010
42 days
2011
23 days
2012
36 days
2013
39 days
2014
48 days
2015
25 days
2016
40 days
2017
68 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
87 years with a frost
Across 87 years with a frost, the median last spring frost at Bison 3NW falls on 27 April and the median first autumn frost on 14 October, which leaves a median of 169 days between them.
In 1981 to 2014 the median growing season was 168 days. The two periods have the same number of growing days.
Fitted over all years, the growing season changes by -1.0 days per decade at this station.
Frost dates and growing season at Bison 3NW
Measure
Median, all years
Earliest period (1924 to 1953)
Recent period (1981 to 2014)
Recent against earliest
Fitted trend
Last spring frost
27 April
1 May
26 April
5 days earlier
-0.5 days per decade
First autumn frost
14 October
16 October
9 October
7 days earlier
-1.5 days per decade
Growing days
169 days
168 days
168 days
no change
-1.0 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
84 years, 1924 to 2016
A day with at least 53.1 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 150.5 mm (5.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Bison 3NW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
53.1 mm (2.1 in)
5 years
72.4 mm (2.9 in)
10 years
87.5 mm (3.4 in)
25 years
109.8 mm (4.3 in)
50 years
128.9 mm (5.1 in)
100 years
150.5 mm (5.9 in)
Longer than the 84 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, 84 years of values from 1924 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: 204.5 mm (8.1 in) in 1927; 127.0 mm (5.0 in) in 1953; 105.9 mm (4.2 in) in 2004.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Bison 3NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bison 3NW 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.