Record envelope, standing records and threshold days for Bristow (USC00341144), Oklahoma, United States, with 98 years of record.
Key Facts for Bristow
Bristow (USC00341144) is a weather station in Oklahoma, United States at 35.83 latitude and -96.39 longitude, 253 m (830 ft) above sea level.
The station reports from 1915 to 2012, 98 years of record.
1,464 records set at Bristow still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bristow tied a daily record high minimum temperature of 20.6 C (69.1 F) on 28 April 2012.
About the Station
Location: Oklahoma, United States, 35.83 latitude, -96.39 longitude.
Elevation: 253 m (830 ft).
Period of record: 1915 to 2012, 98 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 Bristow. 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 Bristow, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.2 C (81.0 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
33.3 C (91.9 F)
-28.9 C (-20.0 F)
n/a
n/a
Mar
36.7 C (98.1 F)
-23.9 C (-11.0 F)
n/a
n/a
Apr
38.9 C (102.0 F)
-7.8 C (18.0 F)
n/a
n/a
May
37.8 C (100.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jun
43.3 C (109.9 F)
7.2 C (45.0 F)
n/a
n/a
Jul
45.6 C (114.1 F)
9.4 C (48.9 F)
n/a
n/a
Aug
46.1 C (115.0 F)
7.8 C (46.0 F)
n/a
n/a
Sep
43.3 C (109.9 F)
-2.2 C (28.0 F)
n/a
n/a
Oct
37.8 C (100.0 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
27.8 C (82.0 F)
-25.6 C (-14.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bristow still stand. 1936 holds the most, with 49.
Standing records at Bristow by the year they were set
Year set
Standing records
1915
3
1916
26
1917
18
1918
8
1919
12
1920
11
1921
9
1922
3
1923
3
1924
28
1925
21
1926
8
1927
28
1928
15
1929
14
1930
20
1931
19
1932
13
1933
18
1934
19
1935
14
1936
49
1937
22
1938
18
1939
18
1940
17
1941
5
1942
12
1943
15
1944
8
1945
17
1946
10
1947
19
1948
20
1949
12
1950
30
1951
27
1952
20
1953
21
1954
29
1955
24
1956
32
1957
8
1958
15
1959
8
1960
16
1961
12
1962
15
1963
22
1964
11
1965
18
1966
15
1967
13
1968
7
1969
2
1970
6
1971
6
1972
18
1973
8
1974
18
1975
12
1976
22
1977
4
1978
10
1979
18
1980
18
1981
10
1982
11
1983
22
1984
14
1985
7
1986
15
1987
9
1988
9
1989
31
1990
13
1991
14
1992
13
1993
8
1994
10
1995
14
1996
16
1997
6
1998
20
1999
8
2000
15
2001
7
2002
8
2003
7
2004
13
2005
14
2006
34
2007
13
2008
11
2009
15
2010
11
2011
24
2012
5
All-Time Record Progression
9 new records
9 all-time records were set at Bristow between 23 September 1970 and 24 April 2011. Each dot is a new record.
When Bristow set new all-time records
Date
Kind
Detail
1970-09-23
Record daily precipitation
Record daily precipitation 195.6 mm (7.7 in)
1983-12-24
Record low maximum temperature
Record low maximum temperature -13.9 C (7.0 F)
1988-01-07
Record snow depth
Record snow depth 27.9 cm (11.0 in)
1989-03-06
Record daily snowfall
Record daily snowfall 27.4 cm (10.8 in)
1989-03-06
Record snow depth
Record snow depth 30.5 cm (12.0 in)
1999-03-13
Record snow depth
Record snow depth 35.6 cm (14.0 in)
2011-02-01
Record daily snowfall
Record daily snowfall 27.9 cm (11.0 in)
2011-02-10
Record low minimum temperature
Record low minimum temperature -28.9 C (-20.0 F)
2011-04-24
Record daily precipitation
Record daily precipitation 218.4 mm (8.6 in)
Wettest Day of Each Month
Apr: 218.4 mm (8.6 in)
The wettest day on record for each calendar month at Bristow. The most was 218.4 mm (8.6 in) on 24 April 2011.
Record daily precipitation for each month at Bristow
Month
Record daily precipitation (mm)
Date
Jan
77.5 mm (3.1 in)
31 January 1983
Feb
109.0 mm (4.3 in)
22 February 1985
Mar
97.0 mm (3.8 in)
19 March 2012
Apr
218.4 mm (8.6 in)
24 April 2011
May
118.1 mm (4.6 in)
17 May 1943
Jun
131.1 mm (5.2 in)
23 June 1948
Jul
168.9 mm (6.6 in)
2 July 1922
Aug
128.5 mm (5.1 in)
21 August 1958
Sep
195.6 mm (7.7 in)
23 September 1970
Oct
142.2 mm (5.6 in)
5 October 1998
Nov
97.0 mm (3.8 in)
7 November 1996
Dec
94.0 mm (3.7 in)
23 December 1932
Period of Record Coverage
1915 to 2012
Complete yearUnder 90 percent of days
98 years of record at Bristow, 1915 to 2012. 23 years have data for under 90 percent of days and are left out of rankings: 1915, 1917, 1918, 1919, 1920, 1921, 1922, 1923 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 66 complete years at Bristow, 1916 to 2010. Blue stripes are years cooler than the station's own mean of 16.0 C (60.9 F); red stripes are warmer. The coolest year was 2009, at 14.6 C (58.2 F), and the warmest was 1954, at 18.1 C (64.5 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Bristow as warming stripes, 1916 to 2010
Year
Annual mean temperature
Difference from the station mean
1916
16.9 C
+0.82 C
1927
16.6 C
+0.59 C
1929
15.8 C
-0.23 C
1931
17.1 C
+1.09 C
1932
15.9 C
-0.11 C
1933
17.0 C
+0.94 C
1934
16.5 C
+0.50 C
1935
15.2 C
-0.83 C
1936
16.4 C
+0.31 C
1937
15.3 C
-0.71 C
1938
16.8 C
+0.73 C
1939
16.8 C
+0.75 C
1940
14.7 C
-1.37 C
1941
16.0 C
-0.01 C
1942
15.6 C
-0.49 C
1943
15.8 C
-0.27 C
1944
15.6 C
-0.44 C
1945
15.0 C
-1.02 C
1948
15.4 C
-0.61 C
1950
14.9 C
-1.10 C
1953
16.2 C
+0.19 C
1954
18.1 C
+2.04 C
1956
16.9 C
+0.83 C
1960
15.4 C
-0.63 C
1961
15.0 C
-1.05 C
1962
16.1 C
+0.03 C
1963
16.6 C
+0.56 C
1964
16.2 C
+0.20 C
1965
16.3 C
+0.27 C
1966
15.4 C
-0.61 C
1968
15.4 C
-0.60 C
1970
16.0 C
-0.08 C
1972
15.7 C
-0.37 C
1974
15.9 C
-0.10 C
1975
15.7 C
-0.36 C
1976
15.3 C
-0.73 C
1977
16.6 C
+0.57 C
1978
16.1 C
+0.02 C
1979
15.6 C
-0.48 C
1980
17.0 C
+1.00 C
1983
15.3 C
-0.76 C
1984
15.8 C
-0.24 C
1985
15.5 C
-0.58 C
1986
16.8 C
+0.71 C
1987
16.3 C
+0.29 C
1988
16.1 C
+0.03 C
1989
15.1 C
-0.94 C
1990
16.7 C
+0.63 C
1991
16.2 C
+0.19 C
1992
15.8 C
-0.25 C
1993
15.2 C
-0.85 C
1994
15.9 C
-0.18 C
1995
16.0 C
-0.05 C
1996
15.6 C
-0.45 C
1997
15.6 C
-0.42 C
1998
17.5 C
+1.47 C
1999
17.1 C
+1.03 C
2000
16.3 C
+0.21 C
2001
16.6 C
+0.60 C
2003
16.2 C
+0.12 C
2004
16.4 C
+0.33 C
2005
16.6 C
+0.54 C
2006
17.6 C
+1.51 C
2007
16.0 C
-0.05 C
2009
14.6 C
-1.46 C
2010
15.1 C
-0.90 C
The fitted trend in annual mean temperature here over 1916 to 2010 is -0.01 C (-0.07 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.01 F (-0.13 to 0.12) per decade. The slope is a straight line fitted to 66 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Bristow
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.01 C (-0.07 to 0.06) per decade
-0.01 F (-0.13 to 0.12) per decade
1916 to 2010
66
Not clearly different from zero
Mean daily maximum
0.00 C (-0.10 to 0.09) per decade
-0.01 F (-0.17 to 0.15) per decade
1916 to 2010
66
Not clearly different from zero
Mean daily minimum
-0.01 C (-0.08 to 0.07) per decade
-0.01 F (-0.15 to 0.12) per decade
1916 to 2010
66
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
1915 to 2012
Yearly extremes at Bristow: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
46.1 C (115.0 F)
1936
40.0 C (104.0 F)
98
Coldest night (TNn)
-28.9 C (-20.0 F)
2011
-16.1 C (3.0 F)
98
Wettest day (Rx1day)
218.4 mm (8.6 in)
2011
85.1 mm (3.4 in)
98
Wettest five days (Rx5day)
280.0 mm (11.0 in)
1948
122.3 mm (4.8 in)
98
Longest dry spell (CDD)
153 days
1924
30 days
98
Hottest day (TXx)
The hottest day of the year at Bristow, 1915 to 2012. The record is 46.1 C (115.0 F) in 1936, marked on the chart; the median year is 40.0 C (104.0 F).
Hottest day (TXx) at Bristow by year
Year
Hottest day (TXx)
1915
29.4 C (84.9 F)
1916
41.1 C (106.0 F)
1917
42.8 C (109.0 F)
1918
36.7 C (98.1 F)
1919
40.0 C (104.0 F)
1920
38.9 C (102.0 F)
1921
39.4 C (102.9 F)
1922
37.2 C (99.0 F)
1923
40.0 C (104.0 F)
1924
43.3 C (109.9 F)
1925
43.3 C (109.9 F)
1926
40.0 C (104.0 F)
1927
37.8 C (100.0 F)
1928
37.8 C (100.0 F)
1929
41.1 C (106.0 F)
1930
41.7 C (107.1 F)
1931
40.6 C (105.1 F)
1932
38.3 C (100.9 F)
1933
42.2 C (108.0 F)
1934
43.9 C (111.0 F)
1935
40.0 C (104.0 F)
1936
46.1 C (115.0 F)
1937
44.4 C (111.9 F)
1938
38.3 C (100.9 F)
1939
42.2 C (108.0 F)
1940
37.2 C (99.0 F)
1941
38.9 C (102.0 F)
1942
38.3 C (100.9 F)
1943
42.2 C (108.0 F)
1944
40.6 C (105.1 F)
1945
40.6 C (105.1 F)
1946
41.7 C (107.1 F)
1947
38.3 C (100.9 F)
1948
38.9 C (102.0 F)
1949
37.8 C (100.0 F)
1950
36.7 C (98.1 F)
1951
42.8 C (109.0 F)
1952
42.2 C (108.0 F)
1953
41.7 C (107.1 F)
1954
45.6 C (114.1 F)
1955
40.6 C (105.1 F)
1956
44.4 C (111.9 F)
1957
40.6 C (105.1 F)
1958
36.7 C (98.1 F)
1959
38.3 C (100.9 F)
1960
38.9 C (102.0 F)
1961
37.2 C (99.0 F)
1962
41.1 C (106.0 F)
1963
40.0 C (104.0 F)
1964
42.8 C (109.0 F)
1965
40.0 C (104.0 F)
1966
40.6 C (105.1 F)
1967
37.8 C (100.0 F)
1968
38.3 C (100.9 F)
1969
41.1 C (106.0 F)
1970
41.7 C (107.1 F)
1971
38.9 C (102.0 F)
1972
39.4 C (102.9 F)
1973
37.8 C (100.0 F)
1974
42.2 C (108.0 F)
1975
37.2 C (99.0 F)
1976
38.9 C (102.0 F)
1977
41.7 C (107.1 F)
1978
41.1 C (106.0 F)
1979
37.8 C (100.0 F)
1980
43.3 C (109.9 F)
1981
42.2 C (108.0 F)
1982
40.6 C (105.1 F)
1983
40.6 C (105.1 F)
1984
41.1 C (106.0 F)
1985
41.7 C (107.1 F)
1986
43.9 C (111.0 F)
1987
39.4 C (102.9 F)
1988
39.4 C (102.9 F)
1989
37.2 C (99.0 F)
1990
40.6 C (105.1 F)
1991
38.3 C (100.9 F)
1992
34.4 C (93.9 F)
1993
40.0 C (104.0 F)
1994
38.3 C (100.9 F)
1995
38.9 C (102.0 F)
1996
42.2 C (108.0 F)
1997
36.7 C (98.1 F)
1998
43.3 C (109.9 F)
1999
42.2 C (108.0 F)
2000
42.8 C (109.0 F)
2001
40.6 C (105.1 F)
2002
37.8 C (100.0 F)
2003
40.0 C (104.0 F)
2004
36.1 C (97.0 F)
2005
38.3 C (100.9 F)
2006
41.7 C (107.1 F)
2007
38.9 C (102.0 F)
2008
38.3 C (100.9 F)
2009
38.9 C (102.0 F)
2010
38.3 C (100.9 F)
2011
42.8 C (109.0 F)
2012
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Bristow, 1915 to 2012. The record is -28.9 C (-20.0 F) in 2011, marked on the chart; the median year is -16.1 C (3.0 F).
Coldest night (TNn) at Bristow by year
Year
Coldest night (TNn)
1915
-7.2 C (19.0 F)
1916
-23.3 C (-9.9 F)
1917
-17.8 C (0.0 F)
1918
-19.4 C (-2.9 F)
1919
-17.8 C (0.0 F)
1920
-15.6 C (3.9 F)
1921
-11.1 C (12.0 F)
1922
-12.8 C (9.0 F)
1923
-14.4 C (6.1 F)
1924
-18.9 C (-2.0 F)
1925
-16.7 C (1.9 F)
1926
-16.7 C (1.9 F)
1927
-17.2 C (1.0 F)
1928
-15.6 C (3.9 F)
1929
-23.3 C (-9.9 F)
1930
-27.8 C (-18.0 F)
1931
-10.6 C (12.9 F)
1932
-15.0 C (5.0 F)
1933
-21.7 C (-7.1 F)
1934
-12.2 C (10.0 F)
1935
-18.3 C (-0.9 F)
1936
-18.3 C (-0.9 F)
1937
-14.4 C (6.1 F)
1938
-12.8 C (9.0 F)
1939
-13.9 C (7.0 F)
1940
-19.4 C (-2.9 F)
1941
-9.4 C (15.1 F)
1942
-19.4 C (-2.9 F)
1943
-21.1 C (-6.0 F)
1944
-22.2 C (-8.0 F)
1945
-17.2 C (1.0 F)
1946
-11.7 C (10.9 F)
1947
-25.0 C (-13.0 F)
1948
-23.9 C (-11.0 F)
1949
-20.6 C (-5.1 F)
1950
-17.2 C (1.0 F)
1951
-18.3 C (-0.9 F)
1952
-9.4 C (15.1 F)
1953
-13.3 C (8.1 F)
1954
-15.0 C (5.0 F)
1955
-13.3 C (8.1 F)
1956
-13.9 C (7.0 F)
1957
-13.3 C (8.1 F)
1958
-19.4 C (-2.9 F)
1959
-12.8 C (9.0 F)
1960
-15.6 C (3.9 F)
1961
-18.3 C (-0.9 F)
1962
-20.6 C (-5.1 F)
1963
-19.4 C (-2.9 F)
1964
-16.1 C (3.0 F)
1965
-14.4 C (6.1 F)
1966
-18.3 C (-0.9 F)
1967
-15.0 C (5.0 F)
1968
-17.8 C (0.0 F)
1969
-14.4 C (6.1 F)
1970
-16.7 C (1.9 F)
1971
-16.1 C (3.0 F)
1972
-17.2 C (1.0 F)
1973
-14.4 C (6.1 F)
1974
-17.8 C (0.0 F)
1975
-15.0 C (5.0 F)
1976
-17.8 C (0.0 F)
1977
-23.3 C (-9.9 F)
1978
-18.9 C (-2.0 F)
1979
-21.1 C (-6.0 F)
1980
-16.1 C (3.0 F)
1981
-18.9 C (-2.0 F)
1982
-10.0 C (14.0 F)
1983
-22.2 C (-8.0 F)
1984
-22.8 C (-9.0 F)
1985
-19.4 C (-2.9 F)
1986
-17.8 C (0.0 F)
1987
-12.8 C (9.0 F)
1988
-22.2 C (-8.0 F)
1989
-25.6 C (-14.1 F)
1990
-16.1 C (3.0 F)
1991
-10.6 C (12.9 F)
1992
-11.1 C (12.0 F)
1993
-15.6 C (3.9 F)
1994
-13.3 C (8.1 F)
1995
-12.8 C (9.0 F)
1996
-24.4 C (-11.9 F)
1997
-16.1 C (3.0 F)
1998
-12.8 C (9.0 F)
1999
-12.2 C (10.0 F)
2000
-13.3 C (8.1 F)
2001
-15.0 C (5.0 F)
2002
-16.7 C (1.9 F)
2003
-12.8 C (9.0 F)
2004
-14.4 C (6.1 F)
2005
-18.9 C (-2.0 F)
2006
-13.3 C (8.1 F)
2007
-13.9 C (7.0 F)
2008
-13.3 C (8.1 F)
2009
-14.4 C (6.1 F)
2010
-17.8 C (0.0 F)
2011
-28.9 C (-20.0 F)
2012
-11.7 C (10.9 F)
Wettest day (Rx1day)
The wettest day of the year at Bristow, 1915 to 2012. The record is 218.4 mm (8.6 in) in 2011, marked on the chart; the median year is 85.1 mm (3.4 in).
Wettest day (Rx1day) at Bristow by year
Year
Wettest day (Rx1day)
1915
15.2 mm (0.6 in)
1916
71.1 mm (2.8 in)
1917
50.3 mm (2.0 in)
1918
86.9 mm (3.4 in)
1919
76.7 mm (3.0 in)
1920
129.0 mm (5.1 in)
1921
64.5 mm (2.5 in)
1922
168.9 mm (6.6 in)
1923
73.7 mm (2.9 in)
1924
61.0 mm (2.4 in)
1925
78.7 mm (3.1 in)
1926
64.3 mm (2.5 in)
1927
90.2 mm (3.6 in)
1928
122.7 mm (4.8 in)
1929
53.3 mm (2.1 in)
1930
56.6 mm (2.2 in)
1931
56.4 mm (2.2 in)
1932
94.0 mm (3.7 in)
1933
92.5 mm (3.6 in)
1934
55.9 mm (2.2 in)
1935
81.3 mm (3.2 in)
1936
82.8 mm (3.3 in)
1937
39.1 mm (1.5 in)
1938
91.9 mm (3.6 in)
1939
66.0 mm (2.6 in)
1940
122.9 mm (4.8 in)
1941
99.3 mm (3.9 in)
1942
140.7 mm (5.5 in)
1943
118.1 mm (4.6 in)
1944
56.4 mm (2.2 in)
1945
94.0 mm (3.7 in)
1946
62.7 mm (2.5 in)
1947
50.3 mm (2.0 in)
1948
131.1 mm (5.2 in)
1949
71.4 mm (2.8 in)
1950
144.8 mm (5.7 in)
1951
45.5 mm (1.8 in)
1952
86.4 mm (3.4 in)
1953
72.4 mm (2.9 in)
1954
94.0 mm (3.7 in)
1955
95.0 mm (3.7 in)
1956
53.3 mm (2.1 in)
1957
117.9 mm (4.6 in)
1958
128.5 mm (5.1 in)
1959
118.4 mm (4.7 in)
1960
47.5 mm (1.9 in)
1961
72.4 mm (2.9 in)
1962
102.1 mm (4.0 in)
1963
51.3 mm (2.0 in)
1964
104.1 mm (4.1 in)
1965
79.0 mm (3.1 in)
1966
61.0 mm (2.4 in)
1967
65.3 mm (2.6 in)
1968
95.0 mm (3.7 in)
1969
74.2 mm (2.9 in)
1970
195.6 mm (7.7 in)
1971
97.8 mm (3.9 in)
1972
93.0 mm (3.7 in)
1973
63.0 mm (2.5 in)
1974
106.7 mm (4.2 in)
1975
50.3 mm (2.0 in)
1976
81.3 mm (3.2 in)
1977
83.8 mm (3.3 in)
1978
52.3 mm (2.1 in)
1979
103.9 mm (4.1 in)
1980
62.7 mm (2.5 in)
1981
101.1 mm (4.0 in)
1982
54.6 mm (2.1 in)
1983
103.6 mm (4.1 in)
1984
87.6 mm (3.4 in)
1985
109.0 mm (4.3 in)
1986
108.2 mm (4.3 in)
1987
69.3 mm (2.7 in)
1988
64.0 mm (2.5 in)
1989
74.7 mm (2.9 in)
1990
123.2 mm (4.9 in)
1991
69.1 mm (2.7 in)
1992
86.4 mm (3.4 in)
1993
105.9 mm (4.2 in)
1994
79.0 mm (3.1 in)
1995
110.7 mm (4.4 in)
1996
97.0 mm (3.8 in)
1997
100.6 mm (4.0 in)
1998
145.5 mm (5.7 in)
1999
80.0 mm (3.1 in)
2000
100.3 mm (3.9 in)
2001
102.9 mm (4.1 in)
2002
48.3 mm (1.9 in)
2003
106.7 mm (4.2 in)
2004
49.0 mm (1.9 in)
2005
82.6 mm (3.3 in)
2006
99.1 mm (3.9 in)
2007
80.0 mm (3.1 in)
2008
104.1 mm (4.1 in)
2009
88.9 mm (3.5 in)
2010
78.2 mm (3.1 in)
2011
218.4 mm (8.6 in)
2012
97.0 mm (3.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bristow, 1915 to 2012. The record is 280.0 mm (11.0 in) in 1948, marked on the chart; the median year is 122.3 mm (4.8 in).
Wettest five days (Rx5day) at Bristow by year
Year
Wettest five days (Rx5day)
1915
15.2 mm (0.6 in)
1916
133.4 mm (5.3 in)
1917
83.6 mm (3.3 in)
1918
89.7 mm (3.5 in)
1919
118.6 mm (4.7 in)
1920
129.0 mm (5.1 in)
1921
171.2 mm (6.7 in)
1922
191.0 mm (7.5 in)
1923
99.1 mm (3.9 in)
1924
86.9 mm (3.4 in)
1925
92.7 mm (3.6 in)
1926
84.4 mm (3.3 in)
1927
163.2 mm (6.4 in)
1928
142.0 mm (5.6 in)
1929
102.8 mm (4.0 in)
1930
90.1 mm (3.5 in)
1931
107.2 mm (4.2 in)
1932
132.1 mm (5.2 in)
1933
92.5 mm (3.6 in)
1934
118.2 mm (4.7 in)
1935
120.9 mm (4.8 in)
1936
117.3 mm (4.6 in)
1937
54.8 mm (2.2 in)
1938
133.9 mm (5.3 in)
1939
107.1 mm (4.2 in)
1940
150.1 mm (5.9 in)
1941
186.6 mm (7.3 in)
1942
181.8 mm (7.2 in)
1943
208.0 mm (8.2 in)
1944
114.7 mm (4.5 in)
1945
230.9 mm (9.1 in)
1946
118.6 mm (4.7 in)
1947
99.0 mm (3.9 in)
1948
280.0 mm (11.0 in)
1949
121.4 mm (4.8 in)
1950
197.4 mm (7.8 in)
1951
95.8 mm (3.8 in)
1952
99.6 mm (3.9 in)
1953
100.6 mm (4.0 in)
1954
139.2 mm (5.5 in)
1955
124.2 mm (4.9 in)
1956
62.9 mm (2.5 in)
1957
154.2 mm (6.1 in)
1958
158.0 mm (6.2 in)
1959
181.6 mm (7.1 in)
1960
88.9 mm (3.5 in)
1961
80.3 mm (3.2 in)
1962
149.9 mm (5.9 in)
1963
78.5 mm (3.1 in)
1964
132.8 mm (5.2 in)
1965
109.5 mm (4.3 in)
1966
105.4 mm (4.1 in)
1967
133.1 mm (5.2 in)
1968
99.8 mm (3.9 in)
1969
128.6 mm (5.1 in)
1970
197.7 mm (7.8 in)
1971
152.2 mm (6.0 in)
1972
105.6 mm (4.2 in)
1973
121.0 mm (4.8 in)
1974
198.4 mm (7.8 in)
1975
87.2 mm (3.4 in)
1976
108.5 mm (4.3 in)
1977
145.4 mm (5.7 in)
1978
95.2 mm (3.7 in)
1979
136.9 mm (5.4 in)
1980
158.3 mm (6.2 in)
1981
131.6 mm (5.2 in)
1982
115.0 mm (4.5 in)
1983
205.4 mm (8.1 in)
1984
129.3 mm (5.1 in)
1985
173.3 mm (6.8 in)
1986
238.5 mm (9.4 in)
1987
144.8 mm (5.7 in)
1988
115.7 mm (4.6 in)
1989
83.8 mm (3.3 in)
1990
170.5 mm (6.7 in)
1991
117.3 mm (4.6 in)
1992
175.0 mm (6.9 in)
1993
120.4 mm (4.7 in)
1994
109.2 mm (4.3 in)
1995
156.7 mm (6.2 in)
1996
108.4 mm (4.3 in)
1997
138.5 mm (5.5 in)
1998
234.2 mm (9.2 in)
1999
116.1 mm (4.6 in)
2000
133.1 mm (5.2 in)
2001
147.4 mm (5.8 in)
2002
70.4 mm (2.8 in)
2003
113.5 mm (4.5 in)
2004
78.8 mm (3.1 in)
2005
123.2 mm (4.9 in)
2006
118.1 mm (4.6 in)
2007
194.4 mm (7.7 in)
2008
139.7 mm (5.5 in)
2009
134.5 mm (5.3 in)
2010
87.7 mm (3.5 in)
2011
243.3 mm (9.6 in)
2012
124.4 mm (4.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bristow, 1915 to 2012. The record is 153 days in 1924, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Bristow by year
Year
Longest dry spell (CDD)
1915
19 days
1916
23 days
1917
33 days
1918
130 days
1919
43 days
1920
50 days
1921
45 days
1922
61 days
1923
103 days
1924
153 days
1925
98 days
1926
122 days
1927
38 days
1928
27 days
1929
34 days
1930
39 days
1931
35 days
1932
27 days
1933
27 days
1934
37 days
1935
27 days
1936
30 days
1937
20 days
1938
38 days
1939
22 days
1940
27 days
1941
29 days
1942
32 days
1943
38 days
1944
24 days
1945
26 days
1946
36 days
1947
39 days
1948
26 days
1949
28 days
1950
31 days
1951
26 days
1952
49 days
1953
25 days
1954
37 days
1955
56 days
1956
31 days
1957
36 days
1958
29 days
1959
36 days
1960
17 days
1961
23 days
1962
27 days
1963
54 days
1964
22 days
1965
36 days
1966
30 days
1967
25 days
1968
17 days
1969
36 days
1970
30 days
1971
30 days
1972
29 days
1973
19 days
1974
32 days
1975
19 days
1976
35 days
1977
23 days
1978
23 days
1979
32 days
1980
32 days
1981
20 days
1982
20 days
1983
17 days
1984
17 days
1985
18 days
1986
35 days
1987
25 days
1988
33 days
1989
35 days
1990
29 days
1991
40 days
1992
16 days
1993
17 days
1994
34 days
1995
26 days
1996
41 days
1997
21 days
1998
27 days
1999
31 days
2000
37 days
2001
25 days
2002
28 days
2003
35 days
2004
24 days
2005
37 days
2006
21 days
2007
34 days
2008
27 days
2009
28 days
2010
24 days
2011
2 days
2012
16 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
66 years with a frost
Across 66 years with a frost, the median last spring frost at Bristow falls on 5 April and the median first autumn frost on 28 October, which leaves a median of 206 days between them.
In 1977 to 2010 the median growing season was 203 days. That is 5 days fewer than in 1916 to 1966.
Fitted over all years, the growing season changes by -1.5 days per decade at this station.
Frost dates and growing season at Bristow
Measure
Median, all years
Earliest period (1916 to 1966)
Recent period (1977 to 2010)
Recent against earliest
Fitted trend
Last spring frost
5 April
6 April
6 April
no change
+0.7 days per decade
First autumn frost
28 October
31 October
26 October
5 days earlier
-0.8 days per decade
Growing days
206 days
208 days
203 days
5 days fewer
-1.5 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
87 years, 1916 to 2010
A day with at least 83.6 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 173.0 mm (6.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Bristow: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
83.6 mm (3.3 in)
5 years
109.4 mm (4.3 in)
10 years
125.7 mm (4.9 in)
25 years
145.4 mm (5.7 in)
50 years
159.5 mm (6.3 in)
100 years
173.0 mm (6.8 in)
Longer than the 87 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, 87 years of values from 1916 to 2010.
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: 195.6 mm (7.7 in) in 1970; 168.9 mm (6.6 in) in 1922; 145.5 mm (5.7 in) in 1998.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Bristow standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bristow 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.