Record envelope, standing records and threshold days for Marion (USC00334937), Ohio, United States, with 57 years of record.
Key Facts for Marion
Marion (USC00334937) is a weather station in Ohio, United States at 40.58 latitude and -83.13 longitude, 299 m (981 ft) above sea level.
The station reports from 1893 to 1949, 57 years of record.
1,464 records set at Marion still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Marion set a daily record high maximum temperature of 22.8 C (73.0 F) on 12 November 1949.
About the Station
Location: Ohio, United States, 40.58 latitude, -83.13 longitude.
Elevation: 299 m (981 ft).
Period of record: 1893 to 1949, 57 years.
Eligible elements: tmax, tmin, prcp.
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 Marion. 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 Marion, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.3 C (73.9 F)
-27.8 C (-18.0 F)
n/a
n/a
Feb
21.7 C (71.1 F)
-30.0 C (-22.0 F)
n/a
n/a
Mar
29.4 C (84.9 F)
-18.9 C (-2.0 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-11.1 C (12.0 F)
n/a
n/a
May
38.3 C (100.9 F)
-4.4 C (24.1 F)
n/a
n/a
Jun
39.4 C (102.9 F)
1.7 C (35.1 F)
n/a
n/a
Jul
41.1 C (106.0 F)
4.4 C (39.9 F)
n/a
n/a
Aug
40.0 C (104.0 F)
3.3 C (37.9 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-4.4 C (24.1 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
20.6 C (69.1 F)
-25.0 C (-13.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Marion still stand. 1895 holds the most, with 51.
Standing records at Marion by the year they were set
Year set
Standing records
1893
19
1894
39
1895
51
1896
47
1897
41
1898
20
1899
39
1900
39
1901
41
1902
34
1903
38
1904
27
1905
22
1906
30
1907
26
1908
30
1909
27
1910
27
1911
39
1912
25
1913
30
1914
35
1915
24
1916
27
1917
36
1918
28
1919
17
1920
27
1921
21
1922
15
1923
16
1924
23
1925
37
1926
12
1927
24
1928
17
1929
24
1930
35
1931
30
1932
24
1933
25
1934
27
1935
15
1936
45
1937
8
1938
17
1939
15
1940
18
1941
7
1942
14
1943
18
1944
16
1945
15
1946
22
1947
12
1948
15
1949
12
All-Time Record Progression
2 new records
2 all-time records were set at Marion between 21 July 1934 and 19 June 1939. Each dot is a new record.
When Marion set new all-time records
Date
Kind
Detail
1934-07-21
Record high maximum temperature
Record high maximum temperature 41.1 C (106.0 F)
1939-06-19
Record daily precipitation
Record daily precipitation 137.2 mm (5.4 in)
Wettest Day of Each Month
Jun: 137.2 mm (5.4 in)
The wettest day on record for each calendar month at Marion. The most was 137.2 mm (5.4 in) on 19 June 1939.
Record daily precipitation for each month at Marion
Month
Record daily precipitation (mm)
Date
Jan
51.3 mm (2.0 in)
14 January 1937
Feb
47.2 mm (1.9 in)
14 February 1948
Mar
111.5 mm (4.4 in)
25 March 1913
Apr
66.0 mm (2.6 in)
1 April 1904
May
98.0 mm (3.9 in)
12 May 1923
Jun
137.2 mm (5.4 in)
19 June 1939
Jul
88.9 mm (3.5 in)
20 July 1919
Aug
74.9 mm (2.9 in)
10 August 1931
Sep
72.4 mm (2.9 in)
5 September 1926
Oct
82.6 mm (3.3 in)
22 October 1929
Nov
62.2 mm (2.4 in)
1 November 1921
Dec
49.8 mm (2.0 in)
16 December 1948
Period of Record Coverage
1893 to 1949
Complete yearUnder 90 percent of days
57 years of record at Marion, 1893 to 1949. 1 years have data for under 90 percent of days and are left out of rankings: 1893.
Cooler than the station meanWarmer than the station mean
One stripe for each of 54 complete years at Marion, 1894 to 1948. Blue stripes are years cooler than the station's own mean of 11.0 C (51.8 F); red stripes are warmer. The coolest year was 1904, at 9.2 C (48.5 F), and the warmest was 1931, at 12.8 C (55.0 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Marion as warming stripes, 1894 to 1948
Year
Annual mean temperature
Difference from the station mean
1894
11.2 C
+0.17 C
1895
9.9 C
-1.07 C
1896
11.0 C
-0.05 C
1897
10.9 C
-0.08 C
1898
11.2 C
+0.16 C
1899
11.3 C
+0.29 C
1900
11.6 C
+0.57 C
1901
10.5 C
-0.55 C
1902
10.4 C
-0.57 C
1903
10.4 C
-0.59 C
1904
9.2 C
-1.83 C
1905
9.9 C
-1.07 C
1906
11.0 C
-0.05 C
1907
9.7 C
-1.27 C
1908
11.7 C
+0.70 C
1909
10.8 C
-0.18 C
1910
10.7 C
-0.26 C
1911
11.7 C
+0.72 C
1912
10.1 C
-0.90 C
1913
11.4 C
+0.35 C
1914
10.9 C
-0.06 C
1915
10.9 C
-0.14 C
1916
11.0 C
+0.03 C
1917
9.2 C
-1.82 C
1918
11.3 C
+0.26 C
1919
11.6 C
+0.56 C
1920
10.2 C
-0.78 C
1921
12.8 C
+1.76 C
1922
11.7 C
+0.66 C
1923
10.8 C
-0.19 C
1924
9.9 C
-1.08 C
1925
11.1 C
+0.10 C
1926
10.4 C
-0.61 C
1927
11.1 C
+0.07 C
1928
10.6 C
-0.36 C
1929
10.7 C
-0.32 C
1930
11.7 C
+0.71 C
1931
12.8 C
+1.77 C
1932
11.8 C
+0.80 C
1933
11.9 C
+0.94 C
1934
11.6 C
+0.62 C
1935
10.7 C
-0.35 C
1936
11.3 C
+0.34 C
1937
11.3 C
+0.30 C
1938
12.5 C
+1.45 C
1939
12.0 C
+1.04 C
1940
10.2 C
-0.83 C
1941
11.8 C
+0.76 C
1943
10.2 C
-0.84 C
1944
11.3 C
+0.27 C
1945
10.6 C
-0.44 C
1946
12.0 C
+0.98 C
1947
10.6 C
-0.45 C
1948
11.2 C
+0.18 C
The annual mean temperature here has risen by 0.14 C (0.01 to 0.27) per decade over 1894 to 1948. In Fahrenheit: 0.25 F (0.02 to 0.49) per decade. The slope is a straight line fitted to 54 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Marion
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.14 C (0.01 to 0.27) per decade
0.25 F (0.02 to 0.49) per decade
1894 to 1948
54
Rise
Mean daily maximum
-0.04 C (-0.19 to 0.11) per decade
-0.1 F (-0.3 to 0.2) per decade
1894 to 1948
54
Not clearly different from zero
Mean daily minimum
0.3 C (0.2 to 0.5) per decade
0.6 F (0.3 to 0.8) per decade
1894 to 1948
54
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 1949
Yearly extremes at Marion: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
1934
36.7 C (98.1 F)
57
Coldest night (TNn)
-30.0 C (-22.0 F)
1899
-21.1 C (-6.0 F)
57
Wettest day (Rx1day)
137.2 mm (5.4 in)
1939
52.3 mm (2.1 in)
57
Wettest five days (Rx5day)
269.5 mm (10.6 in)
1913
86.9 mm (3.4 in)
56
Longest dry spell (CDD)
41 days
1908
16 days
57
Hottest day (TXx)
The hottest day of the year at Marion, 1893 to 1949. The record is 41.1 C (106.0 F) in 1934, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Marion by year
Year
Hottest day (TXx)
1893
36.1 C (97.0 F)
1894
37.2 C (99.0 F)
1895
37.2 C (99.0 F)
1896
36.1 C (97.0 F)
1897
37.8 C (100.0 F)
1898
36.7 C (98.1 F)
1899
37.8 C (100.0 F)
1900
38.3 C (100.9 F)
1901
38.9 C (102.0 F)
1902
35.6 C (96.1 F)
1903
36.7 C (98.1 F)
1904
34.4 C (93.9 F)
1905
35.0 C (95.0 F)
1906
37.2 C (99.0 F)
1907
33.9 C (93.0 F)
1908
37.8 C (100.0 F)
1909
35.0 C (95.0 F)
1910
36.7 C (98.1 F)
1911
40.6 C (105.1 F)
1912
35.0 C (95.0 F)
1913
39.4 C (102.9 F)
1914
37.8 C (100.0 F)
1915
33.9 C (93.0 F)
1916
38.3 C (100.9 F)
1917
36.7 C (98.1 F)
1918
40.0 C (104.0 F)
1919
35.6 C (96.1 F)
1920
33.9 C (93.0 F)
1921
37.2 C (99.0 F)
1922
33.9 C (93.0 F)
1923
34.4 C (93.9 F)
1924
35.6 C (96.1 F)
1925
36.1 C (97.0 F)
1926
36.7 C (98.1 F)
1927
34.4 C (93.9 F)
1928
33.9 C (93.0 F)
1929
32.8 C (91.0 F)
1930
38.9 C (102.0 F)
1931
36.7 C (98.1 F)
1932
37.2 C (99.0 F)
1933
38.9 C (102.0 F)
1934
41.1 C (106.0 F)
1935
34.4 C (93.9 F)
1936
40.6 C (105.1 F)
1937
34.4 C (93.9 F)
1938
33.3 C (91.9 F)
1939
37.8 C (100.0 F)
1940
36.1 C (97.0 F)
1941
36.7 C (98.1 F)
1942
36.7 C (98.1 F)
1943
35.0 C (95.0 F)
1944
36.7 C (98.1 F)
1945
33.3 C (91.9 F)
1946
33.9 C (93.0 F)
1947
33.9 C (93.0 F)
1948
37.8 C (100.0 F)
1949
36.7 C (98.1 F)
Coldest night (TNn)
The coldest night of the year at Marion, 1893 to 1949. The record is -30.0 C (-22.0 F) in 1899, marked on the chart; the median year is -21.1 C (-6.0 F).
Coldest night (TNn) at Marion by year
Year
Coldest night (TNn)
1893
-15.0 C (5.0 F)
1894
-22.8 C (-9.0 F)
1895
-23.3 C (-9.9 F)
1896
-21.7 C (-7.1 F)
1897
-26.7 C (-16.1 F)
1898
-22.8 C (-9.0 F)
1899
-30.0 C (-22.0 F)
1900
-21.7 C (-7.1 F)
1901
-22.8 C (-9.0 F)
1902
-22.8 C (-9.0 F)
1903
-23.3 C (-9.9 F)
1904
-26.1 C (-15.0 F)
1905
-25.6 C (-14.1 F)
1906
-21.1 C (-6.0 F)
1907
-20.6 C (-5.1 F)
1908
-17.8 C (0.0 F)
1909
-22.2 C (-8.0 F)
1910
-20.0 C (-4.0 F)
1911
-18.9 C (-2.0 F)
1912
-26.1 C (-15.0 F)
1913
-18.9 C (-2.0 F)
1914
-22.8 C (-9.0 F)
1915
-23.3 C (-9.9 F)
1916
-20.0 C (-4.0 F)
1917
-25.6 C (-14.1 F)
1918
-26.7 C (-16.1 F)
1919
-17.8 C (0.0 F)
1920
-19.4 C (-2.9 F)
1921
-12.2 C (10.0 F)
1922
-19.4 C (-2.9 F)
1923
-18.3 C (-0.9 F)
1924
-23.9 C (-11.0 F)
1925
-21.1 C (-6.0 F)
1926
-21.7 C (-7.1 F)
1927
-18.9 C (-2.0 F)
1928
-20.6 C (-5.1 F)
1929
-20.0 C (-4.0 F)
1930
-24.4 C (-11.9 F)
1931
-12.2 C (10.0 F)
1932
-21.1 C (-6.0 F)
1933
-22.2 C (-8.0 F)
1934
-24.4 C (-11.9 F)
1935
-21.1 C (-6.0 F)
1936
-27.8 C (-18.0 F)
1937
-14.4 C (6.1 F)
1938
-16.1 C (3.0 F)
1939
-18.3 C (-0.9 F)
1940
-26.1 C (-15.0 F)
1941
-16.1 C (3.0 F)
1942
-23.3 C (-9.9 F)
1943
-19.4 C (-2.9 F)
1944
-22.2 C (-8.0 F)
1945
-20.6 C (-5.1 F)
1946
-20.0 C (-4.0 F)
1947
-20.0 C (-4.0 F)
1948
-20.0 C (-4.0 F)
1949
-15.6 C (3.9 F)
Wettest day (Rx1day)
The wettest day of the year at Marion, 1893 to 1949. The record is 137.2 mm (5.4 in) in 1939, marked on the chart; the median year is 52.3 mm (2.1 in).
Wettest day (Rx1day) at Marion by year
Year
Wettest day (Rx1day)
1893
55.9 mm (2.2 in)
1894
30.5 mm (1.2 in)
1895
38.1 mm (1.5 in)
1896
62.2 mm (2.4 in)
1897
51.6 mm (2.0 in)
1898
45.2 mm (1.8 in)
1899
63.5 mm (2.5 in)
1900
43.2 mm (1.7 in)
1901
68.8 mm (2.7 in)
1902
52.8 mm (2.1 in)
1903
45.7 mm (1.8 in)
1904
66.0 mm (2.6 in)
1905
45.7 mm (1.8 in)
1906
47.2 mm (1.9 in)
1907
44.7 mm (1.8 in)
1908
36.8 mm (1.4 in)
1909
49.8 mm (2.0 in)
1910
77.7 mm (3.1 in)
1911
39.4 mm (1.6 in)
1912
59.7 mm (2.4 in)
1913
111.5 mm (4.4 in)
1914
37.6 mm (1.5 in)
1915
77.5 mm (3.1 in)
1916
53.3 mm (2.1 in)
1917
33.8 mm (1.3 in)
1918
64.8 mm (2.6 in)
1919
88.9 mm (3.5 in)
1920
47.0 mm (1.9 in)
1921
62.2 mm (2.4 in)
1922
39.4 mm (1.6 in)
1923
98.0 mm (3.9 in)
1924
40.6 mm (1.6 in)
1925
71.1 mm (2.8 in)
1926
72.4 mm (2.9 in)
1927
71.1 mm (2.8 in)
1928
36.8 mm (1.4 in)
1929
82.6 mm (3.3 in)
1930
48.3 mm (1.9 in)
1931
74.9 mm (2.9 in)
1932
50.8 mm (2.0 in)
1933
48.8 mm (1.9 in)
1934
41.9 mm (1.6 in)
1935
33.8 mm (1.3 in)
1936
34.3 mm (1.4 in)
1937
55.9 mm (2.2 in)
1938
45.7 mm (1.8 in)
1939
137.2 mm (5.4 in)
1940
59.2 mm (2.3 in)
1941
70.1 mm (2.8 in)
1942
42.4 mm (1.7 in)
1943
72.4 mm (2.9 in)
1944
20.3 mm (0.8 in)
1945
57.2 mm (2.3 in)
1946
57.2 mm (2.3 in)
1947
68.6 mm (2.7 in)
1948
51.1 mm (2.0 in)
1949
52.3 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Marion, 1893 to 1949. The record is 269.5 mm (10.6 in) in 1913, marked on the chart; the median year is 86.9 mm (3.4 in).
Wettest five days (Rx5day) at Marion by year
Year
Wettest five days (Rx5day)
1893
n/a
1894
57.2 mm (2.3 in)
1895
44.5 mm (1.8 in)
1896
37.3 mm (1.5 in)
1897
54.7 mm (2.2 in)
1898
111.7 mm (4.4 in)
1899
88.1 mm (3.5 in)
1900
55.4 mm (2.2 in)
1901
68.8 mm (2.7 in)
1902
122.6 mm (4.8 in)
1903
74.9 mm (2.9 in)
1904
92.4 mm (3.6 in)
1905
71.1 mm (2.8 in)
1906
95.5 mm (3.8 in)
1907
127.7 mm (5.0 in)
1908
61.0 mm (2.4 in)
1909
93.5 mm (3.7 in)
1910
154.2 mm (6.1 in)
1911
70.3 mm (2.8 in)
1912
106.2 mm (4.2 in)
1913
269.5 mm (10.6 in)
1914
68.1 mm (2.7 in)
1915
120.7 mm (4.8 in)
1916
74.9 mm (2.9 in)
1917
67.6 mm (2.7 in)
1918
90.5 mm (3.6 in)
1919
88.9 mm (3.5 in)
1920
95.8 mm (3.8 in)
1921
96.8 mm (3.8 in)
1922
59.3 mm (2.3 in)
1923
130.3 mm (5.1 in)
1924
73.1 mm (2.9 in)
1925
100.1 mm (3.9 in)
1926
111.0 mm (4.4 in)
1927
112.4 mm (4.4 in)
1928
83.8 mm (3.3 in)
1929
178.6 mm (7.0 in)
1930
86.6 mm (3.4 in)
1931
123.1 mm (4.8 in)
1932
61.0 mm (2.4 in)
1933
67.6 mm (2.7 in)
1934
44.5 mm (1.8 in)
1935
69.3 mm (2.7 in)
1936
61.8 mm (2.4 in)
1937
113.5 mm (4.5 in)
1938
87.1 mm (3.4 in)
1939
85.8 mm (3.4 in)
1940
107.3 mm (4.2 in)
1941
119.9 mm (4.7 in)
1942
57.9 mm (2.3 in)
1943
96.0 mm (3.8 in)
1944
54.4 mm (2.1 in)
1945
82.1 mm (3.2 in)
1946
97.6 mm (3.8 in)
1947
101.9 mm (4.0 in)
1948
81.1 mm (3.2 in)
1949
78.7 mm (3.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Marion, 1893 to 1949. The record is 41 days in 1908, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Marion by year
Year
Longest dry spell (CDD)
1893
1 day
1894
3 days
1895
14 days
1896
2 days
1897
5 days
1898
9 days
1899
30 days
1900
18 days
1901
14 days
1902
23 days
1903
20 days
1904
25 days
1905
18 days
1906
13 days
1907
18 days
1908
41 days
1909
15 days
1910
14 days
1911
21 days
1912
17 days
1913
13 days
1914
17 days
1915
24 days
1916
10 days
1917
26 days
1918
20 days
1919
12 days
1920
27 days
1921
16 days
1922
16 days
1923
13 days
1924
32 days
1925
14 days
1926
13 days
1927
19 days
1928
11 days
1929
20 days
1930
12 days
1931
18 days
1932
15 days
1933
11 days
1934
21 days
1935
13 days
1936
20 days
1937
14 days
1938
20 days
1939
15 days
1940
19 days
1941
14 days
1942
15 days
1943
20 days
1944
19 days
1945
13 days
1946
18 days
1947
16 days
1948
19 days
1949
22 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
54 years with a frost
Across 54 years with a frost, the median last spring frost at Marion falls on 29 April and the median first autumn frost on 14 October, which leaves a median of 169 days between them.
Fitted over all years, the growing season changes by +5.7 days per decade at this station.
Frost dates and growing season at Marion
Measure
Median, all years
Earliest period
Recent period (1918 to 1948)
Recent against earliest
Fitted trend
Last spring frost
29 April
n/a
27 April
n/a
-1.4 days per decade
First autumn frost
14 October
n/a
21 October
n/a
+4.2 days per decade
Growing days
169 days
n/a
178 days
n/a
+5.7 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
48 years, 1899 to 1948
A day with at least 52.8 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 127.4 mm (5.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Marion: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
52.8 mm (2.1 in)
5 years
70.6 mm (2.8 in)
10 years
83.2 mm (3.3 in)
25 years
100.1 mm (3.9 in)
50 years
113.5 mm (4.5 in)
Longer than the 48 years of record
100 years
127.4 mm (5.0 in)
Longer than the 48 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, 48 years of values from 1899 to 1948.
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: 137.2 mm (5.4 in) in 1939; 111.5 mm (4.4 in) in 1913; 88.9 mm (3.5 in) in 1919.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Marion, at 1908. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1908 ran 0.3 C (0.5 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Marion, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1908
+0.3
+0.5
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 Marion standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Marion 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.