Record envelope, standing records and threshold days for El Reno 1 N (USC00342818), Oklahoma, United States, with 114 years of record.
Key Facts for El Reno 1 N
El Reno 1 N (USC00342818) is a weather station in Oklahoma, United States at 35.55 latitude and -97.96 longitude, 404 m (1,325 ft) above sea level.
The station reports from 1893 to 2006, 114 years of record.
1,464 records set at El Reno 1 N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
El Reno 1 N set a daily record high maximum temperature of 22.8 C (73.0 F) on 17 December 2006.
About the Station
Location: Oklahoma, United States, 35.55 latitude, -97.96 longitude.
Elevation: 404 m (1,325 ft).
Period of record: 1893 to 2006, 114 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 El Reno 1 N. 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 El Reno 1 N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
31.1 C (88.0 F)
-23.3 C (-9.9 F)
n/a
n/a
Feb
33.9 C (93.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Mar
36.1 C (97.0 F)
-17.2 C (1.0 F)
n/a
n/a
Apr
39.4 C (102.9 F)
-7.8 C (18.0 F)
n/a
n/a
May
40.6 C (105.1 F)
-1.7 C (28.9 F)
n/a
n/a
Jun
42.2 C (108.0 F)
2.8 C (37.0 F)
n/a
n/a
Jul
43.3 C (109.9 F)
10.0 C (50.0 F)
n/a
n/a
Aug
44.4 C (111.9 F)
7.2 C (45.0 F)
n/a
n/a
Sep
42.2 C (108.0 F)
-1.1 C (30.0 F)
n/a
n/a
Oct
37.8 C (100.0 F)
-8.9 C (16.0 F)
n/a
n/a
Nov
31.7 C (89.1 F)
-14.4 C (6.1 F)
n/a
n/a
Dec
31.7 C (89.1 F)
-23.9 C (-11.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at El Reno 1 N still stand. 1911 holds the most, with 44.
Standing records at El Reno 1 N by the year they were set
Year set
Standing records
1893
25
1894
33
1895
40
1896
24
1897
16
1898
18
1899
24
1900
11
1901
21
1902
19
1903
19
1904
23
1905
24
1906
19
1911
44
1912
19
1913
19
1914
14
1915
21
1916
8
1917
37
1918
25
1919
13
1920
19
1921
8
1952
30
1953
17
1954
36
1955
22
1956
22
1957
16
1958
12
1959
24
1960
21
1961
15
1962
18
1963
17
1964
15
1965
21
1966
14
1967
19
1968
10
1969
20
1970
24
1971
13
1972
27
1973
20
1974
18
1975
10
1976
11
1977
9
1978
16
1979
12
1980
21
1981
15
1982
13
1983
23
1984
6
1985
13
1986
15
1987
7
1988
7
1989
20
1990
16
1991
16
1992
13
1993
10
1994
14
1995
14
1996
22
1997
25
1998
23
1999
9
2000
26
2001
11
2002
5
2003
13
2004
10
2005
15
2006
30
All-Time Record Progression
5 new records
5 all-time records were set at El Reno 1 N between 13 September 1961 and 7 January 1988. Each dot is a new record.
When El Reno 1 N set new all-time records
Date
Kind
Detail
1961-09-13
Record daily precipitation
Record daily precipitation 179.8 mm (7.1 in)
1969-07-13
Record high minimum temperature
Record high minimum temperature 28.3 C (82.9 F)
1970-07-29
Record high minimum temperature
Record high minimum temperature 28.9 C (84.0 F)
1971-09-04
Record high minimum temperature
Record high minimum temperature 30.0 C (86.0 F)
1988-01-07
Record snow depth
Record snow depth 27.9 cm (11.0 in)
Wettest Day of Each Month
Sep: 179.8 mm (7.1 in)
The wettest day on record for each calendar month at El Reno 1 N. The most was 179.8 mm (7.1 in) on 13 September 1961.
Record daily precipitation for each month at El Reno 1 N
Month
Record daily precipitation (mm)
Date
Jan
65.5 mm (2.6 in)
30 January 1982
Feb
137.2 mm (5.4 in)
9 February 1898
Mar
78.5 mm (3.1 in)
11 March 1990
Apr
100.3 mm (3.9 in)
28 April 1897
May
131.6 mm (5.2 in)
28 May 1987
Jun
119.4 mm (4.7 in)
4 June 1995
Jul
165.1 mm (6.5 in)
1 July 1913
Aug
115.6 mm (4.6 in)
23 August 1914
Sep
179.8 mm (7.1 in)
13 September 1961
Oct
108.0 mm (4.3 in)
20 October 1983
Nov
155.4 mm (6.1 in)
19 November 1953
Dec
64.5 mm (2.5 in)
9 December 1911
Period of Record Coverage
1893 to 2006
Complete yearUnder 90 percent of days
81 years of record at El Reno 1 N, 1893 to 2006. 13 years have data for under 90 percent of days and are left out of rankings: 1898, 1899, 1911, 1912, 1915, 1916, 1917, 1919 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 63 complete years at El Reno 1 N, 1893 to 2006. Blue stripes are years cooler than the station's own mean of 15.5 C (60.0 F); red stripes are warmer. The coolest year was 1895, at 14.0 C (57.3 F), and the warmest was 1954, at 17.6 C (63.7 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at El Reno 1 N as warming stripes, 1893 to 2006
Year
Annual mean temperature
Difference from the station mean
1893
15.2 C
-0.30 C
1895
14.0 C
-1.50 C
1896
16.2 C
+0.65 C
1897
15.4 C
-0.11 C
1900
15.4 C
-0.15 C
1901
15.8 C
+0.23 C
1902
14.9 C
-0.69 C
1903
14.7 C
-0.85 C
1904
15.9 C
+0.35 C
1905
14.3 C
-1.27 C
1906
14.1 C
-1.41 C
1913
15.9 C
+0.34 C
1914
15.9 C
+0.36 C
1918
16.0 C
+0.44 C
1920
15.0 C
-0.52 C
1953
16.6 C
+1.10 C
1954
17.6 C
+2.08 C
1955
16.3 C
+0.71 C
1956
16.8 C
+1.26 C
1957
15.2 C
-0.34 C
1958
15.2 C
-0.31 C
1959
15.4 C
-0.16 C
1960
14.7 C
-0.85 C
1961
14.9 C
-0.66 C
1962
15.8 C
+0.26 C
1963
16.3 C
+0.73 C
1964
16.0 C
+0.41 C
1965
16.1 C
+0.51 C
1966
15.0 C
-0.54 C
1967
15.8 C
+0.23 C
1968
14.8 C
-0.70 C
1969
15.6 C
+0.04 C
1970
15.7 C
+0.15 C
1971
15.6 C
+0.02 C
1972
15.5 C
-0.01 C
1973
15.2 C
-0.38 C
1975
15.0 C
-0.50 C
1976
15.3 C
-0.21 C
1977
16.5 C
+0.98 C
1978
15.0 C
-0.50 C
1979
14.2 C
-1.37 C
1980
15.9 C
+0.40 C
1982
15.1 C
-0.49 C
1983
14.7 C
-0.89 C
1985
14.3 C
-1.27 C
1986
16.0 C
+0.43 C
1987
15.2 C
-0.30 C
1988
15.7 C
+0.18 C
1989
15.1 C
-0.49 C
1990
16.5 C
+0.95 C
1991
16.2 C
+0.62 C
1993
15.1 C
-0.41 C
1994
16.0 C
+0.49 C
1995
16.0 C
+0.49 C
1996
16.1 C
+0.56 C
1998
17.1 C
+1.58 C
1999
16.4 C
+0.89 C
2000
15.7 C
+0.20 C
2001
16.4 C
+0.89 C
2003
14.8 C
-0.72 C
2004
14.9 C
-0.60 C
2005
15.4 C
-0.15 C
2006
15.7 C
+0.20 C
The fitted trend in annual mean temperature here over 1893 to 2006 is 0.04 C (-0.01 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.08 F (-0.02 to 0.17) per decade. The slope is a straight line fitted to 63 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at El Reno 1 N
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.04 C (-0.01 to 0.10) per decade
0.08 F (-0.02 to 0.17) per decade
1893 to 2006
63
Not clearly different from zero
Mean daily maximum
-0.05 C (-0.11 to 0.01) per decade
-0.09 F (-0.21 to 0.03) per decade
1893 to 2006
63
Not clearly different from zero
Mean daily minimum
0.1 C (0.1 to 0.2) per decade
0.2 F (0.1 to 0.3) per decade
1893 to 2006
63
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
1893 to 2006
Yearly extremes at El Reno 1 N: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
44.4 C (111.9 F)
1952
40.6 C (105.1 F)
81
Coldest night (TNn)
-26.1 C (-15.0 F)
1905
-16.7 C (1.9 F)
81
Wettest day (Rx1day)
179.8 mm (7.1 in)
1961
68.6 mm (2.7 in)
86
Wettest five days (Rx5day)
261.6 mm (10.3 in)
1959
107.3 mm (4.2 in)
86
Longest dry spell (CDD)
101 days
1896
37 days
86
Hottest day (TXx)
The hottest day of the year at El Reno 1 N, 1893 to 2006. The record is 44.4 C (111.9 F) in 1952, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at El Reno 1 N by year
Year
Hottest day (TXx)
1893
40.0 C (104.0 F)
1894
42.2 C (108.0 F)
1895
40.0 C (104.0 F)
1896
41.7 C (107.1 F)
1897
41.7 C (107.1 F)
1898
38.3 C (100.9 F)
1899
41.7 C (107.1 F)
1900
37.2 C (99.0 F)
1901
42.2 C (108.0 F)
1902
41.7 C (107.1 F)
1903
40.6 C (105.1 F)
1904
40.0 C (104.0 F)
1905
37.8 C (100.0 F)
1906
37.2 C (99.0 F)
1911
42.8 C (109.0 F)
1912
41.1 C (106.0 F)
1913
42.2 C (108.0 F)
1914
42.2 C (108.0 F)
1915
37.8 C (100.0 F)
1916
40.6 C (105.1 F)
1917
41.7 C (107.1 F)
1918
42.8 C (109.0 F)
1919
38.3 C (100.9 F)
1920
38.9 C (102.0 F)
1921
40.6 C (105.1 F)
1922
29.4 C (84.9 F)
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
44.4 C (111.9 F)
1953
42.2 C (108.0 F)
1954
42.8 C (109.0 F)
1955
37.8 C (100.0 F)
1956
42.2 C (108.0 F)
1957
40.6 C (105.1 F)
1958
38.9 C (102.0 F)
1959
40.0 C (104.0 F)
1960
38.9 C (102.0 F)
1961
37.8 C (100.0 F)
1962
40.6 C (105.1 F)
1963
40.6 C (105.1 F)
1964
43.9 C (111.0 F)
1965
39.4 C (102.9 F)
1966
40.0 C (104.0 F)
1967
38.9 C (102.0 F)
1968
38.3 C (100.9 F)
1969
42.2 C (108.0 F)
1970
41.1 C (106.0 F)
1971
40.6 C (105.1 F)
1972
39.4 C (102.9 F)
1973
38.9 C (102.0 F)
1974
43.3 C (109.9 F)
1975
36.7 C (98.1 F)
1976
40.6 C (105.1 F)
1977
41.7 C (107.1 F)
1978
42.2 C (108.0 F)
1979
36.1 C (97.0 F)
1980
42.2 C (108.0 F)
1981
41.1 C (106.0 F)
1982
40.6 C (105.1 F)
1983
41.1 C (106.0 F)
1984
41.7 C (107.1 F)
1985
40.6 C (105.1 F)
1986
42.8 C (109.0 F)
1987
38.3 C (100.9 F)
1988
40.0 C (104.0 F)
1989
37.2 C (99.0 F)
1990
39.4 C (102.9 F)
1991
38.3 C (100.9 F)
1992
36.1 C (97.0 F)
1993
38.9 C (102.0 F)
1994
41.1 C (106.0 F)
1995
40.0 C (104.0 F)
1996
42.8 C (109.0 F)
1997
38.3 C (100.9 F)
1998
41.7 C (107.1 F)
1999
40.6 C (105.1 F)
2000
42.2 C (108.0 F)
2001
41.7 C (107.1 F)
2002
38.9 C (102.0 F)
2003
41.1 C (106.0 F)
2004
37.2 C (99.0 F)
2005
38.3 C (100.9 F)
2006
40.6 C (105.1 F)
Coldest night (TNn)
The coldest night of the year at El Reno 1 N, 1893 to 2006. The record is -26.1 C (-15.0 F) in 1905, marked on the chart; the median year is -16.7 C (1.9 F).
Coldest night (TNn) at El Reno 1 N by year
Year
Coldest night (TNn)
1893
-15.6 C (3.9 F)
1894
-22.2 C (-8.0 F)
1895
-21.7 C (-7.1 F)
1896
-12.8 C (9.0 F)
1897
-17.8 C (0.0 F)
1898
-11.7 C (10.9 F)
1899
-23.9 C (-11.0 F)
1900
-15.0 C (5.0 F)
1901
-19.4 C (-2.9 F)
1902
-23.3 C (-9.9 F)
1903
-16.7 C (1.9 F)
1904
-18.3 C (-0.9 F)
1905
-26.1 C (-15.0 F)
1906
-20.6 C (-5.1 F)
1911
-17.2 C (1.0 F)
1912
-21.7 C (-7.1 F)
1913
-18.3 C (-0.9 F)
1914
-15.6 C (3.9 F)
1915
-11.7 C (10.9 F)
1916
-20.0 C (-4.0 F)
1917
-18.3 C (-0.9 F)
1918
-22.2 C (-8.0 F)
1919
-17.8 C (0.0 F)
1920
-13.9 C (7.0 F)
1921
-11.7 C (10.9 F)
1922
-12.2 C (10.0 F)
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
-10.6 C (12.9 F)
1953
-12.8 C (9.0 F)
1954
-16.1 C (3.0 F)
1955
-12.2 C (10.0 F)
1956
-13.9 C (7.0 F)
1957
-12.8 C (9.0 F)
1958
-16.7 C (1.9 F)
1959
-20.6 C (-5.1 F)
1960
-17.2 C (1.0 F)
1961
-17.2 C (1.0 F)
1962
-17.8 C (0.0 F)
1963
-19.4 C (-2.9 F)
1964
-16.7 C (1.9 F)
1965
-15.0 C (5.0 F)
1966
-17.2 C (1.0 F)
1967
-14.4 C (6.1 F)
1968
-18.3 C (-0.9 F)
1969
-15.0 C (5.0 F)
1970
-16.7 C (1.9 F)
1971
-17.2 C (1.0 F)
1972
-17.8 C (0.0 F)
1973
-19.4 C (-2.9 F)
1974
-16.7 C (1.9 F)
1975
-14.4 C (6.1 F)
1976
-17.2 C (1.0 F)
1977
-18.9 C (-2.0 F)
1978
-17.8 C (0.0 F)
1979
-17.8 C (0.0 F)
1980
-15.6 C (3.9 F)
1981
-16.7 C (1.9 F)
1982
-23.3 C (-9.9 F)
1983
-21.1 C (-6.0 F)
1984
-15.6 C (3.9 F)
1985
-18.3 C (-0.9 F)
1986
-16.7 C (1.9 F)
1987
-16.7 C (1.9 F)
1988
-15.6 C (3.9 F)
1989
-23.9 C (-11.0 F)
1990
-16.7 C (1.9 F)
1991
-12.2 C (10.0 F)
1992
-9.4 C (15.1 F)
1993
-13.9 C (7.0 F)
1994
-13.3 C (8.1 F)
1995
-11.1 C (12.0 F)
1996
-20.6 C (-5.1 F)
1997
-15.0 C (5.0 F)
1998
-11.7 C (10.9 F)
1999
-11.1 C (12.0 F)
2000
-11.1 C (12.0 F)
2001
-10.6 C (12.9 F)
2002
-13.3 C (8.1 F)
2003
-12.8 C (9.0 F)
2004
-15.6 C (3.9 F)
2005
-16.1 C (3.0 F)
2006
-16.7 C (1.9 F)
Wettest day (Rx1day)
The wettest day of the year at El Reno 1 N, 1893 to 2006. The record is 179.8 mm (7.1 in) in 1961, marked on the chart; the median year is 68.6 mm (2.7 in).
Wettest day (Rx1day) at El Reno 1 N by year
Year
Wettest day (Rx1day)
1893
53.1 mm (2.1 in)
1894
37.3 mm (1.5 in)
1895
35.6 mm (1.4 in)
1896
50.8 mm (2.0 in)
1897
100.3 mm (3.9 in)
1898
137.2 mm (5.4 in)
1899
76.2 mm (3.0 in)
1900
132.1 mm (5.2 in)
1901
67.3 mm (2.6 in)
1902
64.3 mm (2.5 in)
1903
71.1 mm (2.8 in)
1904
94.0 mm (3.7 in)
1905
50.8 mm (2.0 in)
1906
53.3 mm (2.1 in)
1911
64.5 mm (2.5 in)
1912
61.0 mm (2.4 in)
1913
165.1 mm (6.5 in)
1914
115.6 mm (4.6 in)
1915
73.7 mm (2.9 in)
1916
52.8 mm (2.1 in)
1917
61.0 mm (2.4 in)
1918
94.0 mm (3.7 in)
1919
48.3 mm (1.9 in)
1920
67.3 mm (2.6 in)
1921
51.1 mm (2.0 in)
1922
79.0 mm (3.1 in)
1947
61.0 mm (2.4 in)
1948
45.7 mm (1.8 in)
1949
117.9 mm (4.6 in)
1950
59.9 mm (2.4 in)
1951
76.2 mm (3.0 in)
1952
63.5 mm (2.5 in)
1953
155.4 mm (6.1 in)
1954
31.2 mm (1.2 in)
1955
90.9 mm (3.6 in)
1956
65.5 mm (2.6 in)
1957
82.6 mm (3.3 in)
1958
57.4 mm (2.3 in)
1959
111.8 mm (4.4 in)
1960
89.7 mm (3.5 in)
1961
179.8 mm (7.1 in)
1962
68.6 mm (2.7 in)
1963
54.6 mm (2.1 in)
1964
60.7 mm (2.4 in)
1965
147.1 mm (5.8 in)
1966
71.1 mm (2.8 in)
1967
56.1 mm (2.2 in)
1968
63.8 mm (2.5 in)
1969
69.6 mm (2.7 in)
1970
99.3 mm (3.9 in)
1971
71.4 mm (2.8 in)
1972
58.2 mm (2.3 in)
1973
62.5 mm (2.5 in)
1974
61.7 mm (2.4 in)
1975
140.0 mm (5.5 in)
1976
33.0 mm (1.3 in)
1977
106.4 mm (4.2 in)
1978
52.6 mm (2.1 in)
1979
76.5 mm (3.0 in)
1980
68.3 mm (2.7 in)
1981
58.7 mm (2.3 in)
1982
86.9 mm (3.4 in)
1983
108.0 mm (4.3 in)
1984
69.1 mm (2.7 in)
1985
68.6 mm (2.7 in)
1986
114.3 mm (4.5 in)
1987
131.6 mm (5.2 in)
1988
58.9 mm (2.3 in)
1989
96.8 mm (3.8 in)
1990
78.5 mm (3.1 in)
1991
76.2 mm (3.0 in)
1992
51.3 mm (2.0 in)
1993
113.8 mm (4.5 in)
1994
108.0 mm (4.3 in)
1995
119.4 mm (4.7 in)
1996
58.7 mm (2.3 in)
1997
68.6 mm (2.7 in)
1998
63.5 mm (2.5 in)
1999
73.7 mm (2.9 in)
2000
91.4 mm (3.6 in)
2001
50.8 mm (2.0 in)
2002
79.8 mm (3.1 in)
2003
40.6 mm (1.6 in)
2004
53.3 mm (2.1 in)
2005
55.9 mm (2.2 in)
2006
50.8 mm (2.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at El Reno 1 N, 1893 to 2006. The record is 261.6 mm (10.3 in) in 1959, marked on the chart; the median year is 107.3 mm (4.2 in).
Wettest five days (Rx5day) at El Reno 1 N by year
Year
Wettest five days (Rx5day)
1893
157.6 mm (6.2 in)
1894
53.3 mm (2.1 in)
1895
69.6 mm (2.7 in)
1896
52.8 mm (2.1 in)
1897
175.2 mm (6.9 in)
1898
214.7 mm (8.5 in)
1899
132.8 mm (5.2 in)
1900
198.7 mm (7.8 in)
1901
113.3 mm (4.5 in)
1902
134.6 mm (5.3 in)
1903
85.1 mm (3.4 in)
1904
175.3 mm (6.9 in)
1905
77.5 mm (3.1 in)
1906
77.6 mm (3.1 in)
1911
64.8 mm (2.6 in)
1912
80.0 mm (3.1 in)
1913
172.0 mm (6.8 in)
1914
161.6 mm (6.4 in)
1915
126.3 mm (5.0 in)
1916
81.3 mm (3.2 in)
1917
114.5 mm (4.5 in)
1918
138.7 mm (5.5 in)
1919
99.9 mm (3.9 in)
1920
129.0 mm (5.1 in)
1921
73.7 mm (2.9 in)
1922
86.1 mm (3.4 in)
1947
61.0 mm (2.4 in)
1948
133.9 mm (5.3 in)
1949
190.7 mm (7.5 in)
1950
104.3 mm (4.1 in)
1951
125.5 mm (4.9 in)
1952
67.8 mm (2.7 in)
1953
166.1 mm (6.5 in)
1954
63.2 mm (2.5 in)
1955
184.1 mm (7.2 in)
1956
95.2 mm (3.7 in)
1957
100.8 mm (4.0 in)
1958
106.7 mm (4.2 in)
1959
261.6 mm (10.3 in)
1960
122.0 mm (4.8 in)
1961
181.1 mm (7.1 in)
1962
104.0 mm (4.1 in)
1963
76.4 mm (3.0 in)
1964
85.0 mm (3.3 in)
1965
206.8 mm (8.1 in)
1966
84.8 mm (3.3 in)
1967
90.2 mm (3.6 in)
1968
102.1 mm (4.0 in)
1969
84.5 mm (3.3 in)
1970
120.6 mm (4.7 in)
1971
81.3 mm (3.2 in)
1972
79.8 mm (3.1 in)
1973
115.2 mm (4.5 in)
1974
111.2 mm (4.4 in)
1975
208.1 mm (8.2 in)
1976
63.9 mm (2.5 in)
1977
164.0 mm (6.5 in)
1978
95.5 mm (3.8 in)
1979
114.3 mm (4.5 in)
1980
114.7 mm (4.5 in)
1981
115.8 mm (4.6 in)
1982
102.1 mm (4.0 in)
1983
209.3 mm (8.2 in)
1984
71.6 mm (2.8 in)
1985
109.5 mm (4.3 in)
1986
232.9 mm (9.2 in)
1987
253.6 mm (10.0 in)
1988
113.2 mm (4.5 in)
1989
176.9 mm (7.0 in)
1990
172.4 mm (6.8 in)
1991
96.5 mm (3.8 in)
1992
63.7 mm (2.5 in)
1993
156.0 mm (6.1 in)
1994
113.8 mm (4.5 in)
1995
160.6 mm (6.3 in)
1996
96.3 mm (3.8 in)
1997
98.1 mm (3.9 in)
1998
102.2 mm (4.0 in)
1999
94.0 mm (3.7 in)
2000
105.0 mm (4.1 in)
2001
101.6 mm (4.0 in)
2002
107.8 mm (4.2 in)
2003
47.2 mm (1.9 in)
2004
104.7 mm (4.1 in)
2005
130.8 mm (5.1 in)
2006
77.0 mm (3.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at El Reno 1 N, 1893 to 2006. The record is 101 days in 1896, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at El Reno 1 N by year
Year
Longest dry spell (CDD)
1893
42 days
1894
31 days
1895
35 days
1896
101 days
1897
28 days
1898
76 days
1899
71 days
1900
29 days
1901
35 days
1902
52 days
1903
61 days
1904
43 days
1905
42 days
1906
42 days
1911
49 days
1912
50 days
1913
49 days
1914
52 days
1915
39 days
1916
69 days
1917
51 days
1918
27 days
1919
62 days
1920
68 days
1921
62 days
1922
14 days
1947
26 days
1948
52 days
1949
38 days
1950
57 days
1951
22 days
1952
51 days
1953
28 days
1954
47 days
1955
56 days
1956
36 days
1957
36 days
1958
31 days
1959
36 days
1960
24 days
1961
21 days
1962
23 days
1963
35 days
1964
29 days
1965
43 days
1966
36 days
1967
45 days
1968
23 days
1969
36 days
1970
34 days
1971
46 days
1972
37 days
1973
32 days
1974
25 days
1975
27 days
1976
35 days
1977
37 days
1978
34 days
1979
38 days
1980
59 days
1981
31 days
1982
29 days
1983
38 days
1984
23 days
1985
46 days
1986
38 days
1987
50 days
1988
20 days
1989
38 days
1990
36 days
1991
42 days
1992
20 days
1993
22 days
1994
21 days
1995
45 days
1996
44 days
1997
36 days
1998
42 days
1999
28 days
2000
56 days
2001
33 days
2002
36 days
2003
37 days
2004
24 days
2005
46 days
2006
48 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
63 years with a frost
Across 63 years with a frost, the median last spring frost at El Reno 1 N falls on 5 April and the median first autumn frost on 29 October, which leaves a median of 208 days between them.
In 1971 to 2006 the median growing season was 211 days. That is 6 days more than in 1893 to 1967.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
Frost dates and growing season at El Reno 1 N
Measure
Median, all years
Earliest period (1893 to 1967)
Recent period (1971 to 2006)
Recent against earliest
Fitted trend
Last spring frost
5 April
12 April
4 April
8 days earlier
-1.0 days per decade
First autumn frost
29 October
29 October
29 October
no change
+0.5 days per decade
Growing days
208 days
205 days
211 days
6 days more
+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
83 years, 1893 to 2006
A day with at least 70.5 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 198.6 mm (7.8 in) of rain is expected about once in 100 years.
Rainfall return levels at El Reno 1 N: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
70.5 mm (2.8 in)
5 years
97.7 mm (3.8 in)
10 years
118.2 mm (4.7 in)
25 years
147.4 mm (5.8 in)
50 years
171.8 mm (6.8 in)
100 years
198.6 mm (7.8 in)
Longer than the 83 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, 83 years of values from 1893 to 2006.
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: 179.8 mm (7.1 in) in 1961; 165.1 mm (6.5 in) in 1913; 155.4 mm (6.1 in) in 1953.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for El Reno 1 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for El Reno 1 N 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.