Record envelope, standing records and threshold days for Germantown 3 NE (USC00333125), Ohio, United States, with 39 years of record.
Key Facts for Germantown 3 NE
Germantown 3 NE (USC00333125) is a weather station in Ohio, United States at 39.67 latitude and -84.33 longitude, 241 m (791 ft) above sea level.
The station reports from 1914 to 1952, 39 years of record.
1,464 records set at Germantown 3 NE still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Germantown 3 NE tied a daily record high minimum temperature of 4.4 C (39.9 F) on 23 December 1952.
About the Station
Location: Ohio, United States, 39.67 latitude, -84.33 longitude.
Elevation: 241 m (791 ft).
Period of record: 1914 to 1952, 39 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 Germantown 3 NE. 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 Germantown 3 NE, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
22.8 C (73.0 F)
-30.0 C (-22.0 F)
n/a
n/a
Feb
24.4 C (75.9 F)
-28.3 C (-18.9 F)
n/a
n/a
Mar
28.9 C (84.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Apr
32.2 C (90.0 F)
-10.0 C (14.0 F)
n/a
n/a
May
35.0 C (95.0 F)
-2.2 C (28.0 F)
n/a
n/a
Jun
42.2 C (108.0 F)
1.7 C (35.1 F)
n/a
n/a
Jul
42.8 C (109.0 F)
6.7 C (44.1 F)
n/a
n/a
Aug
41.1 C (106.0 F)
3.9 C (39.0 F)
n/a
n/a
Sep
38.3 C (100.9 F)
-2.8 C (27.0 F)
n/a
n/a
Oct
36.7 C (98.1 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
26.1 C (79.0 F)
-17.8 C (0.0 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 Germantown 3 NE still stand. 1936 holds the most, with 77.
Standing records at Germantown 3 NE by the year they were set
Year set
Standing records
1914
29
1915
43
1916
38
1917
53
1918
50
1919
27
1920
45
1921
37
1922
36
1923
30
1924
45
1925
53
1926
25
1927
50
1928
31
1929
59
1930
53
1931
44
1932
42
1933
41
1934
46
1935
23
1936
77
1937
26
1938
27
1939
37
1940
39
1941
36
1942
29
1943
34
1944
25
1945
35
1946
24
1947
26
1948
19
1949
24
1950
35
1951
47
1952
24
Wettest Day of Each Month
Sep: 121.4 mm (4.8 in)
The wettest day on record for each calendar month at Germantown 3 NE. The most was 121.4 mm (4.8 in) on 13 September 1925.
Record daily precipitation for each month at Germantown 3 NE
Month
Record daily precipitation (mm)
Date
Jan
64.8 mm (2.6 in)
4 January 1949
Feb
52.1 mm (2.1 in)
26 February 1929
Mar
79.2 mm (3.1 in)
6 March 1945
Apr
53.3 mm (2.1 in)
20 April 1920
May
53.3 mm (2.1 in)
25 May 1922
Jun
92.7 mm (3.6 in)
27 June 1932
Jul
68.6 mm (2.7 in)
4 July 1932
Aug
73.4 mm (2.9 in)
11 August 1915
Sep
121.4 mm (4.8 in)
13 September 1925
Oct
102.6 mm (4.0 in)
2 October 1925
Nov
59.7 mm (2.4 in)
1 November 1921
Dec
50.8 mm (2.0 in)
24 December 1941
Period of Record Coverage
1914 to 1952
Complete yearUnder 90 percent of days
39 years of record at Germantown 3 NE, 1914 to 1952. 3 years have data for under 90 percent of days and are left out of rankings: 1914, 1922, 1950.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Germantown 3 NE, 1915 to 1952. Blue stripes are years cooler than the station's own mean of 11.8 C (53.2 F); red stripes are warmer. The coolest year was 1917, at 9.6 C (49.2 F), and the warmest was 1921, at 13.4 C (56.1 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Germantown 3 NE as warming stripes, 1915 to 1952
Year
Annual mean temperature
Difference from the station mean
1915
11.3 C
-0.50 C
1916
11.3 C
-0.44 C
1917
9.6 C
-2.19 C
1918
11.3 C
-0.47 C
1919
11.9 C
+0.13 C
1920
10.8 C
-0.95 C
1921
13.4 C
+1.63 C
1923
11.7 C
-0.07 C
1924
10.4 C
-1.38 C
1925
11.7 C
-0.06 C
1926
10.8 C
-0.99 C
1927
11.9 C
+0.15 C
1928
11.3 C
-0.46 C
1929
10.9 C
-0.82 C
1930
12.5 C
+0.69 C
1931
13.2 C
+1.45 C
1932
12.3 C
+0.51 C
1933
12.5 C
+0.78 C
1934
12.2 C
+0.41 C
1935
11.6 C
-0.19 C
1936
12.0 C
+0.23 C
1937
11.2 C
-0.52 C
1938
12.9 C
+1.16 C
1939
12.5 C
+0.75 C
1940
10.9 C
-0.91 C
1941
12.4 C
+0.59 C
1943
11.5 C
-0.29 C
1944
12.4 C
+0.65 C
1945
11.3 C
-0.46 C
1946
12.7 C
+0.92 C
1947
11.4 C
-0.32 C
1948
11.8 C
+0.08 C
1949
13.0 C
+1.24 C
1952
11.3 C
-0.45 C
The fitted trend in annual mean temperature here over 1915 to 1952 is 0.25 C (-0.01 to 0.52) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.46 F (-0.03 to 0.94) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Germantown 3 NE
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.25 C (-0.01 to 0.52) per decade
0.46 F (-0.03 to 0.94) per decade
1915 to 1952
34
Not clearly different from zero
Mean daily maximum
0.30 C (-0.02 to 0.61) per decade
0.54 F (-0.03 to 1.11) per decade
1915 to 1952
34
Not clearly different from zero
Mean daily minimum
0.2 C (-0.1 to 0.5) per decade
0.4 F (-0.1 to 0.9) per decade
1915 to 1952
34
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
1914 to 1952
Yearly extremes at Germantown 3 NE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1934
36.7 C (98.1 F)
39
Coldest night (TNn)
-30.0 C (-22.0 F)
1918
-20.0 C (-4.0 F)
39
Wettest day (Rx1day)
121.4 mm (4.8 in)
1925
53.3 mm (2.1 in)
39
Wettest five days (Rx5day)
161.5 mm (6.4 in)
1925
76.1 mm (3.0 in)
38
Longest dry spell (CDD)
41 days
1939
19 days
39
Hottest day (TXx)
The hottest day of the year at Germantown 3 NE, 1914 to 1952. The record is 42.8 C (109.0 F) in 1934, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Germantown 3 NE by year
Year
Hottest day (TXx)
1914
36.1 C (97.0 F)
1915
35.0 C (95.0 F)
1916
37.8 C (100.0 F)
1917
34.4 C (93.9 F)
1918
41.1 C (106.0 F)
1919
36.1 C (97.0 F)
1920
34.4 C (93.9 F)
1921
37.8 C (100.0 F)
1922
36.1 C (97.0 F)
1923
36.1 C (97.0 F)
1924
36.7 C (98.1 F)
1925
37.2 C (99.0 F)
1926
36.7 C (98.1 F)
1927
35.0 C (95.0 F)
1928
34.4 C (93.9 F)
1929
33.9 C (93.0 F)
1930
40.0 C (104.0 F)
1931
37.8 C (100.0 F)
1932
37.8 C (100.0 F)
1933
38.9 C (102.0 F)
1934
42.8 C (109.0 F)
1935
36.7 C (98.1 F)
1936
42.8 C (109.0 F)
1937
34.4 C (93.9 F)
1938
35.6 C (96.1 F)
1939
38.3 C (100.9 F)
1940
37.8 C (100.0 F)
1941
37.8 C (100.0 F)
1942
34.4 C (93.9 F)
1943
36.1 C (97.0 F)
1944
38.9 C (102.0 F)
1945
35.0 C (95.0 F)
1946
35.6 C (96.1 F)
1947
36.1 C (97.0 F)
1948
36.7 C (98.1 F)
1949
35.0 C (95.0 F)
1950
32.8 C (91.0 F)
1951
37.8 C (100.0 F)
1952
37.8 C (100.0 F)
Coldest night (TNn)
The coldest night of the year at Germantown 3 NE, 1914 to 1952. The record is -30.0 C (-22.0 F) in 1918, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Germantown 3 NE by year
Year
Coldest night (TNn)
1914
-18.9 C (-2.0 F)
1915
-25.6 C (-14.1 F)
1916
-22.2 C (-8.0 F)
1917
-27.8 C (-18.0 F)
1918
-30.0 C (-22.0 F)
1919
-18.3 C (-0.9 F)
1920
-18.9 C (-2.0 F)
1921
-11.1 C (12.0 F)
1922
-17.8 C (0.0 F)
1923
-15.0 C (5.0 F)
1924
-23.3 C (-9.9 F)
1925
-20.6 C (-5.1 F)
1926
-24.4 C (-11.9 F)
1927
-18.9 C (-2.0 F)
1928
-20.6 C (-5.1 F)
1929
-23.3 C (-9.9 F)
1930
-25.0 C (-13.0 F)
1931
-14.4 C (6.1 F)
1932
-17.8 C (0.0 F)
1933
-22.2 C (-8.0 F)
1934
-23.3 C (-9.9 F)
1935
-21.1 C (-6.0 F)
1936
-27.8 C (-18.0 F)
1937
-15.6 C (3.9 F)
1938
-17.2 C (1.0 F)
1939
-18.9 C (-2.0 F)
1940
-24.4 C (-11.9 F)
1941
-17.2 C (1.0 F)
1942
-24.4 C (-11.9 F)
1943
-20.0 C (-4.0 F)
1944
-21.7 C (-7.1 F)
1945
-19.4 C (-2.9 F)
1946
-17.2 C (1.0 F)
1947
-18.9 C (-2.0 F)
1948
-25.0 C (-13.0 F)
1949
-15.6 C (3.9 F)
1950
-20.0 C (-4.0 F)
1951
-28.3 C (-18.9 F)
1952
-14.4 C (6.1 F)
Wettest day (Rx1day)
The wettest day of the year at Germantown 3 NE, 1914 to 1952. The record is 121.4 mm (4.8 in) in 1925, marked on the chart; the median year is 53.3 mm (2.1 in).
Wettest day (Rx1day) at Germantown 3 NE by year
Year
Wettest day (Rx1day)
1914
59.7 mm (2.4 in)
1915
73.4 mm (2.9 in)
1916
38.1 mm (1.5 in)
1917
67.8 mm (2.7 in)
1918
52.3 mm (2.1 in)
1919
47.5 mm (1.9 in)
1920
53.3 mm (2.1 in)
1921
59.7 mm (2.4 in)
1922
59.2 mm (2.3 in)
1923
45.2 mm (1.8 in)
1924
64.5 mm (2.5 in)
1925
121.4 mm (4.8 in)
1926
50.8 mm (2.0 in)
1927
58.4 mm (2.3 in)
1928
50.8 mm (2.0 in)
1929
52.1 mm (2.1 in)
1930
30.0 mm (1.2 in)
1931
44.5 mm (1.8 in)
1932
92.7 mm (3.6 in)
1933
51.3 mm (2.0 in)
1934
31.8 mm (1.3 in)
1935
80.8 mm (3.2 in)
1936
45.7 mm (1.8 in)
1937
53.3 mm (2.1 in)
1938
52.1 mm (2.1 in)
1939
40.1 mm (1.6 in)
1940
35.1 mm (1.4 in)
1941
50.8 mm (2.0 in)
1942
65.5 mm (2.6 in)
1943
68.6 mm (2.7 in)
1944
29.2 mm (1.1 in)
1945
79.2 mm (3.1 in)
1946
35.1 mm (1.4 in)
1947
57.9 mm (2.3 in)
1948
53.3 mm (2.1 in)
1949
64.8 mm (2.6 in)
1950
59.4 mm (2.3 in)
1951
59.2 mm (2.3 in)
1952
53.1 mm (2.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at Germantown 3 NE, 1914 to 1952. The record is 161.5 mm (6.4 in) in 1925, marked on the chart; the median year is 76.1 mm (3.0 in).
Wettest five days (Rx5day) at Germantown 3 NE by year
Year
Wettest five days (Rx5day)
1914
73.9 mm (2.9 in)
1915
100.1 mm (3.9 in)
1916
64.5 mm (2.5 in)
1917
71.6 mm (2.8 in)
1918
85.8 mm (3.4 in)
1919
75.5 mm (3.0 in)
1920
109.7 mm (4.3 in)
1921
96.8 mm (3.8 in)
1922
75.9 mm (3.0 in)
1923
72.4 mm (2.9 in)
1924
75.4 mm (3.0 in)
1925
161.5 mm (6.4 in)
1926
66.5 mm (2.6 in)
1927
85.6 mm (3.4 in)
1928
80.2 mm (3.2 in)
1929
76.2 mm (3.0 in)
1930
83.2 mm (3.3 in)
1931
76.0 mm (3.0 in)
1932
95.2 mm (3.7 in)
1933
121.7 mm (4.8 in)
1934
57.5 mm (2.3 in)
1935
84.9 mm (3.3 in)
1936
89.1 mm (3.5 in)
1937
106.6 mm (4.2 in)
1938
101.5 mm (4.0 in)
1939
73.3 mm (2.9 in)
1940
78.7 mm (3.1 in)
1941
74.7 mm (2.9 in)
1942
66.2 mm (2.6 in)
1943
57.5 mm (2.3 in)
1944
n/a
1945
115.3 mm (4.5 in)
1946
56.9 mm (2.2 in)
1947
70.6 mm (2.8 in)
1948
117.5 mm (4.6 in)
1949
109.3 mm (4.3 in)
1950
73.4 mm (2.9 in)
1951
66.9 mm (2.6 in)
1952
73.9 mm (2.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Germantown 3 NE, 1914 to 1952. The record is 41 days in 1939, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Germantown 3 NE by year
Year
Longest dry spell (CDD)
1914
23 days
1915
20 days
1916
19 days
1917
23 days
1918
18 days
1919
21 days
1920
27 days
1921
12 days
1922
15 days
1923
24 days
1924
24 days
1925
26 days
1926
12 days
1927
19 days
1928
22 days
1929
23 days
1930
19 days
1931
18 days
1932
15 days
1933
19 days
1934
27 days
1935
18 days
1936
24 days
1937
20 days
1938
24 days
1939
41 days
1940
17 days
1941
12 days
1942
17 days
1943
10 days
1944
2 days
1945
15 days
1946
22 days
1947
18 days
1948
19 days
1949
17 days
1950
24 days
1951
17 days
1952
23 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
34 years with a frost
Across 34 years with a frost, the median last spring frost at Germantown 3 NE falls on 27 April and the median first autumn frost on 14 October, which leaves a median of 170 days between them.
Fitted over all years, the growing season changes by +1.9 days per decade at this station.
Frost dates and growing season at Germantown 3 NE
Measure
Median, all years
Earliest period
Recent period (1919 to 1952)
Recent against earliest
Fitted trend
Last spring frost
27 April
n/a
27 April
n/a
-0.7 days per decade
First autumn frost
14 October
n/a
15 October
n/a
+1.3 days per decade
Growing days
170 days
n/a
171 days
n/a
+1.9 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
31 years, 1915 to 1952
A day with at least 52.9 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 121.2 mm (4.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Germantown 3 NE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
52.9 mm (2.1 in)
5 years
68.4 mm (2.7 in)
10 years
79.7 mm (3.1 in)
25 years
95.3 mm (3.8 in)
50 years
107.8 mm (4.2 in)
Longer than the 31 years of record
100 years
121.2 mm (4.8 in)
Longer than the 31 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, 31 years of values from 1915 to 1952.
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: 121.4 mm (4.8 in) in 1925; 92.7 mm (3.6 in) in 1932; 80.8 mm (3.2 in) in 1935.
Download the Data
Data for Germantown 3 NE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Germantown 3 NE 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.