Record envelope, standing records and threshold days for Green Hill (USC00333362), Ohio, United States, with 33 years of record.
Key Facts for Green Hill
Green Hill (USC00333362) is a weather station in Ohio, United States at 40.73 latitude and -81.02 longitude, 346 m (1,135 ft) above sea level.
The station reports from 1893 to 1925, 33 years of record.
1,464 records set at Green Hill still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Green Hill set a daily record low maximum temperature of 21.1 C (70.0 F) on 30 June 1925.
About the Station
Location: Ohio, United States, 40.73 latitude, -81.02 longitude.
Elevation: 346 m (1,135 ft).
Period of record: 1893 to 1925, 33 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 Green Hill. 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 Green Hill, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.2 C (72.0 F)
-33.9 C (-29.0 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-23.9 C (-11.0 F)
n/a
n/a
Apr
31.1 C (88.0 F)
-15.6 C (3.9 F)
n/a
n/a
May
36.7 C (98.1 F)
-5.6 C (21.9 F)
n/a
n/a
Jun
40.0 C (104.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
1.7 C (35.1 F)
n/a
n/a
Aug
38.9 C (102.0 F)
1.1 C (34.0 F)
n/a
n/a
Sep
37.2 C (99.0 F)
-3.9 C (25.0 F)
n/a
n/a
Oct
32.2 C (90.0 F)
-9.4 C (15.1 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-16.7 C (1.9 F)
n/a
n/a
Dec
20.6 C (69.1 F)
-27.8 C (-18.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Green Hill still stand. 1895 holds the most, with 93.
Standing records at Green Hill by the year they were set
Year set
Standing records
1893
58
1894
79
1895
93
1896
72
1897
62
1898
54
1899
56
1900
45
1901
52
1902
32
1903
42
1904
47
1905
35
1906
37
1907
41
1908
33
1909
45
1910
32
1911
43
1912
40
1913
35
1914
55
1915
34
1916
49
1917
54
1918
52
1919
23
1920
28
1921
25
1922
30
1923
30
1924
30
1925
21
Wettest Day of Each Month
Oct: 119.1 mm (4.7 in)
The wettest day on record for each calendar month at Green Hill. The most was 119.1 mm (4.7 in) on 22 October 1919.
Record daily precipitation for each month at Green Hill
Month
Record daily precipitation (mm)
Date
Jan
36.8 mm (1.4 in)
21 January 1904
Feb
51.3 mm (2.0 in)
10 February 1907
Mar
48.3 mm (1.9 in)
3 March 1904
Apr
69.1 mm (2.7 in)
1 April 1904
May
64.5 mm (2.5 in)
12 May 1923
Jun
61.0 mm (2.4 in)
16 June 1920
Jul
50.8 mm (2.0 in)
14 July 1919
Aug
81.0 mm (3.2 in)
28 August 1903
Sep
82.3 mm (3.2 in)
2 September 1912
Oct
119.1 mm (4.7 in)
22 October 1919
Nov
40.4 mm (1.6 in)
5 November 1898
Dec
51.3 mm (2.0 in)
17 December 1903
Period of Record Coverage
1893 to 1925
Complete yearUnder 90 percent of days
33 years of record at Green Hill, 1893 to 1925. 1 years have data for under 90 percent of days and are left out of rankings: 1925.
Cooler than the station meanWarmer than the station mean
One stripe for each of 31 complete years at Green Hill, 1894 to 1924. Blue stripes are years cooler than the station's own mean of 8.9 C (48.0 F); red stripes are warmer. The coolest year was 1917, at 7.0 C (44.5 F), and the warmest was 1921, at 10.7 C (51.2 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Green Hill as warming stripes, 1894 to 1924
Year
Annual mean temperature
Difference from the station mean
1894
10.0 C
+1.08 C
1895
8.6 C
-0.34 C
1896
9.6 C
+0.68 C
1897
9.7 C
+0.75 C
1898
9.9 C
+0.98 C
1899
9.4 C
+0.47 C
1900
9.7 C
+0.75 C
1901
8.7 C
-0.25 C
1902
8.7 C
-0.20 C
1903
8.8 C
-0.11 C
1904
7.5 C
-1.37 C
1905
8.3 C
-0.63 C
1906
9.3 C
+0.43 C
1907
7.9 C
-0.99 C
1908
9.4 C
+0.50 C
1909
8.9 C
+0.00 C
1910
8.4 C
-0.51 C
1911
9.7 C
+0.81 C
1912
8.0 C
-0.89 C
1913
9.4 C
+0.53 C
1914
8.6 C
-0.30 C
1915
8.6 C
-0.30 C
1916
8.5 C
-0.46 C
1917
7.0 C
-1.95 C
1918
9.0 C
+0.07 C
1919
9.6 C
+0.65 C
1920
8.3 C
-0.57 C
1921
10.7 C
+1.75 C
1922
9.6 C
+0.65 C
1923
8.8 C
-0.11 C
1924
7.7 C
-1.22 C
The fitted trend in annual mean temperature here over 1894 to 1924 is -0.2 C (-0.5 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.4 F (-1.0 to 0.2) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Green Hill
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.2 C (-0.5 to 0.1) per decade
-0.4 F (-1.0 to 0.2) per decade
1894 to 1924
31
Not clearly different from zero
Mean daily maximum
-0.4 C (-0.8 to -0.1) per decade
-0.8 F (-1.4 to -0.1) per decade
1894 to 1924
31
Fall
Mean daily minimum
0.04 C (-0.31 to 0.39) per decade
0.1 F (-0.6 to 0.7) per decade
1894 to 1924
31
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
1893 to 1925
Yearly extremes at Green Hill: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
1895
33.9 C (93.0 F)
33
Coldest night (TNn)
-33.9 C (-29.0 F)
1912
-25.6 C (-14.1 F)
33
Wettest day (Rx1day)
119.1 mm (4.7 in)
1919
46.5 mm (1.8 in)
33
Wettest five days (Rx5day)
145.5 mm (5.7 in)
1919
65.0 mm (2.6 in)
33
Longest dry spell (CDD)
23 days
1924
9 days
33
Hottest day (TXx)
The hottest day of the year at Green Hill, 1893 to 1925. The record is 40.0 C (104.0 F) in 1895, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Green Hill by year
Year
Hottest day (TXx)
1893
36.1 C (97.0 F)
1894
38.9 C (102.0 F)
1895
40.0 C (104.0 F)
1896
34.4 C (93.9 F)
1897
38.9 C (102.0 F)
1898
34.4 C (93.9 F)
1899
35.0 C (95.0 F)
1900
34.4 C (93.9 F)
1901
35.0 C (95.0 F)
1902
32.8 C (91.0 F)
1903
33.9 C (93.0 F)
1904
32.2 C (90.0 F)
1905
32.8 C (91.0 F)
1906
32.2 C (90.0 F)
1907
31.1 C (88.0 F)
1908
33.9 C (93.0 F)
1909
31.7 C (89.1 F)
1910
33.3 C (91.9 F)
1911
37.2 C (99.0 F)
1912
32.2 C (90.0 F)
1913
35.0 C (95.0 F)
1914
36.7 C (98.1 F)
1915
30.6 C (87.1 F)
1916
35.0 C (95.0 F)
1917
33.3 C (91.9 F)
1918
38.9 C (102.0 F)
1919
33.3 C (91.9 F)
1920
30.6 C (87.1 F)
1921
34.4 C (93.9 F)
1922
33.3 C (91.9 F)
1923
33.9 C (93.0 F)
1924
33.9 C (93.0 F)
1925
34.4 C (93.9 F)
Coldest night (TNn)
The coldest night of the year at Green Hill, 1893 to 1925. The record is -33.9 C (-29.0 F) in 1912, marked on the chart; the median year is -25.6 C (-14.1 F).
Coldest night (TNn) at Green Hill by year
Year
Coldest night (TNn)
1893
-25.0 C (-13.0 F)
1894
-27.8 C (-18.0 F)
1895
-25.0 C (-13.0 F)
1896
-21.7 C (-7.1 F)
1897
-27.8 C (-18.0 F)
1898
-24.4 C (-11.9 F)
1899
-31.7 C (-25.1 F)
1900
-28.9 C (-20.0 F)
1901
-26.7 C (-16.1 F)
1902
-24.4 C (-11.9 F)
1903
-25.6 C (-14.1 F)
1904
-30.0 C (-22.0 F)
1905
-27.8 C (-18.0 F)
1906
-26.1 C (-15.0 F)
1907
-30.6 C (-23.1 F)
1908
-21.7 C (-7.1 F)
1909
-26.1 C (-15.0 F)
1910
-27.2 C (-17.0 F)
1911
-17.2 C (1.0 F)
1912
-33.9 C (-29.0 F)
1913
-19.4 C (-2.9 F)
1914
-29.4 C (-20.9 F)
1915
-25.6 C (-14.1 F)
1916
-22.8 C (-9.0 F)
1917
-27.8 C (-18.0 F)
1918
-31.7 C (-25.1 F)
1919
-22.8 C (-9.0 F)
1920
-21.1 C (-6.0 F)
1921
-16.7 C (1.9 F)
1922
-21.1 C (-6.0 F)
1923
-20.6 C (-5.1 F)
1924
-26.1 C (-15.0 F)
1925
-22.8 C (-9.0 F)
Wettest day (Rx1day)
The wettest day of the year at Green Hill, 1893 to 1925. The record is 119.1 mm (4.7 in) in 1919, marked on the chart; the median year is 46.5 mm (1.8 in).
Wettest day (Rx1day) at Green Hill by year
Year
Wettest day (Rx1day)
1893
88.9 mm (3.5 in)
1894
42.2 mm (1.7 in)
1895
36.8 mm (1.4 in)
1896
39.9 mm (1.6 in)
1897
50.8 mm (2.0 in)
1898
63.5 mm (2.5 in)
1899
41.4 mm (1.6 in)
1900
40.1 mm (1.6 in)
1901
58.9 mm (2.3 in)
1902
46.5 mm (1.8 in)
1903
81.0 mm (3.2 in)
1904
69.1 mm (2.7 in)
1905
51.3 mm (2.0 in)
1906
37.3 mm (1.5 in)
1907
51.3 mm (2.0 in)
1908
36.8 mm (1.4 in)
1909
37.3 mm (1.5 in)
1910
50.8 mm (2.0 in)
1911
63.2 mm (2.5 in)
1912
82.3 mm (3.2 in)
1913
46.2 mm (1.8 in)
1914
48.3 mm (1.9 in)
1915
34.3 mm (1.4 in)
1916
43.9 mm (1.7 in)
1917
42.7 mm (1.7 in)
1918
27.4 mm (1.1 in)
1919
119.1 mm (4.7 in)
1920
61.0 mm (2.4 in)
1921
30.2 mm (1.2 in)
1922
63.5 mm (2.5 in)
1923
64.5 mm (2.5 in)
1924
35.1 mm (1.4 in)
1925
21.3 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Green Hill, 1893 to 1925. The record is 145.5 mm (5.7 in) in 1919, marked on the chart; the median year is 65.0 mm (2.6 in).
Wettest five days (Rx5day) at Green Hill by year
Year
Wettest five days (Rx5day)
1893
94.7 mm (3.7 in)
1894
69.6 mm (2.7 in)
1895
83.3 mm (3.3 in)
1896
70.8 mm (2.8 in)
1897
58.6 mm (2.3 in)
1898
104.9 mm (4.1 in)
1899
55.5 mm (2.2 in)
1900
59.9 mm (2.4 in)
1901
91.9 mm (3.6 in)
1902
69.1 mm (2.7 in)
1903
118.6 mm (4.7 in)
1904
88.7 mm (3.5 in)
1905
65.0 mm (2.6 in)
1906
80.3 mm (3.2 in)
1907
43.9 mm (1.7 in)
1908
31.7 mm (1.2 in)
1909
55.9 mm (2.2 in)
1910
28.7 mm (1.1 in)
1911
80.8 mm (3.2 in)
1912
88.4 mm (3.5 in)
1913
142.8 mm (5.6 in)
1914
52.3 mm (2.1 in)
1915
76.7 mm (3.0 in)
1916
56.6 mm (2.2 in)
1917
63.3 mm (2.5 in)
1918
59.0 mm (2.3 in)
1919
145.5 mm (5.7 in)
1920
61.2 mm (2.4 in)
1921
58.2 mm (2.3 in)
1922
55.1 mm (2.2 in)
1923
98.3 mm (3.9 in)
1924
54.9 mm (2.2 in)
1925
31.2 mm (1.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Green Hill, 1893 to 1925. The record is 23 days in 1924, marked on the chart; the median year is 9 days.
Longest dry spell (CDD) at Green Hill by year
Year
Longest dry spell (CDD)
1893
14 days
1894
16 days
1895
20 days
1896
7 days
1897
4 days
1898
8 days
1899
4 days
1900
11 days
1901
6 days
1902
16 days
1903
18 days
1904
9 days
1905
17 days
1906
13 days
1907
8 days
1908
4 days
1909
10 days
1910
18 days
1911
6 days
1912
6 days
1913
3 days
1914
3 days
1915
9 days
1916
9 days
1917
11 days
1918
11 days
1919
14 days
1920
8 days
1921
7 days
1922
5 days
1923
15 days
1924
23 days
1925
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
31 years with a frost
Across 31 years with a frost, the median last spring frost at Green Hill falls on 20 May and the median first autumn frost on 28 September, which leaves a median of 132 days between them.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
Frost dates and growing season at Green Hill
Measure
Median, all years
Earliest period
Recent period (1895 to 1924)
Recent against earliest
Fitted trend
Last spring frost
20 May
n/a
19 May
n/a
+0.4 days per decade
First autumn frost
28 September
n/a
27 September
n/a
-0.4 days per decade
Growing days
132 days
n/a
133 days
n/a
-0.8 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.
Download the Data
Data for Green Hill standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Green Hill 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.