Geneva 4 SW Weather Records (USC00333094)

Record envelope, standing records and threshold days for Geneva 4 SW (USC00333094), Ohio, United States, with 51 years of record.

Key Facts for Geneva 4 SW

Geneva 4 SW (USC00333094) is a weather station in Ohio, United States at 41.77 latitude and -81.00 longitude, 259 m (850 ft) above sea level.
The station reports from 1915 to 1965, 51 years of record.
1,464 records set at Geneva 4 SW still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Ohio, United States, 41.77 latitude, -81.00 longitude.
Elevation: 259 m (850 ft).
Period of record: 1915 to 1965, 51 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Geneva 4 SW. 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 Geneva 4 SW, 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)	-27.2 C (-17.0 F)	n/a	n/a
Feb	20.0 C (68.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Mar	26.7 C (80.1 F)	-21.7 C (-7.1 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-10.0 C (14.0 F)	n/a	n/a
May	33.3 C (91.9 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	35.6 C (96.1 F)	2.8 C (37.0 F)	n/a	n/a
Jul	36.1 C (97.0 F)	6.7 C (44.1 F)	n/a	n/a
Aug	40.6 C (105.1 F)	3.3 C (37.9 F)	n/a	n/a
Sep	36.7 C (98.1 F)	1.1 C (34.0 F)	n/a	n/a
Oct	32.2 C (90.0 F)	-3.9 C (25.0 F)	n/a	n/a
Nov	27.8 C (82.0 F)	-17.8 C (0.0 F)	n/a	n/a
Dec	20.6 C (69.1 F)	-22.2 C (-8.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Geneva 4 SW still stand. 1916 holds the most, with 86.

Standing records at Geneva 4 SW by the year they were set
Year set	Standing records
1915	37
1916	86
1917	83
1918	78
1919	62
1920	10
1943	29
1944	51
1945	71
1946	50
1947	53
1948	51
1949	53
1950	70
1951	54
1952	47
1953	46
1954	44
1955	45
1956	44
1957	35
1958	28
1959	47
1960	56
1961	31
1962	46
1963	52
1964	48
1965	57

Wettest Day of Each Month

Oct: 103.9 mm (4.1 in)

The wettest day on record for each calendar month at Geneva 4 SW. The most was 103.9 mm (4.1 in) on 15 October 1954.

Record daily precipitation for each month at Geneva 4 SW
Month	Record daily precipitation (mm)	Date
Jan	41.9 mm (1.6 in)	21 January 1959
Feb	43.4 mm (1.7 in)	12 February 1948
Mar	50.3 mm (2.0 in)	4 March 1964
Apr	57.9 mm (2.3 in)	28 April 1959
May	59.4 mm (2.3 in)	31 May 1946
Jun	66.0 mm (2.6 in)	13 June 1961
Jul	60.2 mm (2.4 in)	20 July 1950
Aug	65.0 mm (2.6 in)	4 August 1956
Sep	67.3 mm (2.6 in)	24 September 1964
Oct	103.9 mm (4.1 in)	15 October 1954
Nov	54.1 mm (2.1 in)	12 November 1963
Dec	53.3 mm (2.1 in)	4 December 1965

Period of Record Coverage

1915 to 1965

29 years of record at Geneva 4 SW, 1915 to 1965. 4 years have data for under 90 percent of days and are left out of rankings: 1915, 1918, 1920, 1943.

Days with data per year at Geneva 4 SW
Year	Days with data	Share of year	Complete
1915	231	63%	No
1916	364	99%	Yes
1917	362	99%	Yes
1918	240	66%	No
1919	362	99%	Yes
1920	59	16%	No
1943	213	58%	No
1944	365	100%	Yes
1945	365	100%	Yes
1946	364	100%	Yes
1947	365	100%	Yes
1948	363	99%	Yes
1949	362	99%	Yes
1950	364	100%	Yes
1951	364	100%	Yes
1952	366	100%	Yes
1953	359	98%	Yes
1954	361	99%	Yes
1955	360	99%	Yes
1956	358	98%	Yes
1957	358	98%	Yes
1958	360	99%	Yes
1959	335	92%	Yes
1960	343	94%	Yes
1961	346	95%	Yes
1962	346	95%	Yes
1963	342	94%	Yes
1964	346	95%	Yes
1965	352	96%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

24 complete years, 1916 to 1965

One stripe for each of 24 complete years at Geneva 4 SW, 1916 to 1965. Blue stripes are years cooler than the station's own mean of 9.6 C (49.3 F); red stripes are warmer. The coolest year was 1917, at 7.6 C (45.7 F), and the warmest was 1953, at 11.0 C (51.8 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Geneva 4 SW as warming stripes, 1916 to 1965
Year	Annual mean temperature	Difference from the station mean
1916	9.1 C	-0.50 C
1917	7.6 C	-1.99 C
1919	10.8 C	+1.16 C
1944	10.0 C	+0.44 C
1945	9.4 C	-0.23 C
1946	10.6 C	+1.04 C
1947	9.2 C	-0.44 C
1948	9.2 C	-0.37 C
1949	10.6 C	+0.98 C
1950	8.6 C	-1.04 C
1951	9.3 C	-0.31 C
1952	10.5 C	+0.89 C
1953	11.0 C	+1.38 C
1954	10.3 C	+0.73 C
1955	10.5 C	+0.86 C
1956	9.7 C	+0.06 C
1957	10.1 C	+0.47 C
1958	9.0 C	-0.59 C
1960	8.8 C	-0.84 C
1961	9.4 C	-0.17 C
1962	9.1 C	-0.50 C
1963	8.8 C	-0.78 C
1964	9.9 C	+0.31 C
1965	9.0 C	-0.59 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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 1965

Yearly extremes at Geneva 4 SW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1918	33.3 C (91.9 F)	29
Coldest night (TNn)	-28.9 C (-20.0 F)	1918	-19.4 C (-2.9 F)	29
Wettest day (Rx1day)	103.9 mm (4.1 in)	1954	50.8 mm (2.0 in)	29
Wettest five days (Rx5day)	141.0 mm (5.6 in)	1954	70.6 mm (2.8 in)	29
Longest dry spell (CDD)	29 days	1918	18 days	29

Hottest day (TXx)

The hottest day of the year at Geneva 4 SW, 1915 to 1965. The record is 40.6 C (105.1 F) in 1918, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at Geneva 4 SW by year
Year	Hottest day (TXx)
1915	31.1 C (88.0 F)
1916	36.7 C (98.1 F)
1917	35.0 C (95.0 F)
1918	40.6 C (105.1 F)
1919	35.6 C (96.1 F)
1920	9.4 C (48.9 F)
1943	33.9 C (93.0 F)
1944	35.0 C (95.0 F)
1945	32.2 C (90.0 F)
1946	34.4 C (93.9 F)
1947	33.3 C (91.9 F)
1948	33.3 C (91.9 F)
1949	33.3 C (91.9 F)
1950	31.7 C (89.1 F)
1951	33.3 C (91.9 F)
1952	35.6 C (96.1 F)
1953	36.1 C (97.0 F)
1954	36.7 C (98.1 F)
1955	35.0 C (95.0 F)
1956	32.2 C (90.0 F)
1957	32.8 C (91.0 F)
1958	30.6 C (87.1 F)
1959	32.2 C (90.0 F)
1960	31.7 C (89.1 F)
1961	30.6 C (87.1 F)
1962	31.7 C (89.1 F)
1963	32.2 C (90.0 F)
1964	33.3 C (91.9 F)
1965	31.7 C (89.1 F)

Coldest night (TNn)

The coldest night of the year at Geneva 4 SW, 1915 to 1965. The record is -28.9 C (-20.0 F) in 1918, marked on the chart; the median year is -19.4 C (-2.9 F).

Coldest night (TNn) at Geneva 4 SW by year
Year	Coldest night (TNn)
1915	-10.6 C (12.9 F)
1916	-23.9 C (-11.0 F)
1917	-24.4 C (-11.9 F)
1918	-28.9 C (-20.0 F)
1919	-17.8 C (0.0 F)
1920	-21.7 C (-7.1 F)
1943	-13.9 C (7.0 F)
1944	-18.3 C (-0.9 F)
1945	-21.1 C (-6.0 F)
1946	-16.1 C (3.0 F)
1947	-18.9 C (-2.0 F)
1948	-22.8 C (-9.0 F)
1949	-15.6 C (3.9 F)
1950	-17.8 C (0.0 F)
1951	-24.4 C (-11.9 F)
1952	-15.6 C (3.9 F)
1953	-14.4 C (6.1 F)
1954	-17.2 C (1.0 F)
1955	-20.0 C (-4.0 F)
1956	-15.0 C (5.0 F)
1957	-20.6 C (-5.1 F)
1958	-17.8 C (0.0 F)
1959	-17.8 C (0.0 F)
1960	-21.7 C (-7.1 F)
1961	-22.2 C (-8.0 F)
1962	-21.7 C (-7.1 F)
1963	-27.2 C (-17.0 F)
1964	-20.0 C (-4.0 F)
1965	-19.4 C (-2.9 F)

Wettest day (Rx1day)

The wettest day of the year at Geneva 4 SW, 1915 to 1965. The record is 103.9 mm (4.1 in) in 1954, marked on the chart; the median year is 50.8 mm (2.0 in).

Wettest day (Rx1day) at Geneva 4 SW by year
Year	Wettest day (Rx1day)
1915	31.8 mm (1.3 in)
1916	50.8 mm (2.0 in)
1917	35.6 mm (1.4 in)
1918	25.4 mm (1.0 in)
1919	35.1 mm (1.4 in)
1920	17.8 mm (0.7 in)
1943	44.2 mm (1.7 in)
1944	50.8 mm (2.0 in)
1945	42.2 mm (1.7 in)
1946	59.4 mm (2.3 in)
1947	55.6 mm (2.2 in)
1948	47.8 mm (1.9 in)
1949	58.2 mm (2.3 in)
1950	61.5 mm (2.4 in)
1951	46.0 mm (1.8 in)
1952	45.0 mm (1.8 in)
1953	38.1 mm (1.5 in)
1954	103.9 mm (4.1 in)
1955	40.6 mm (1.6 in)
1956	65.0 mm (2.6 in)
1957	31.8 mm (1.3 in)
1958	64.0 mm (2.5 in)
1959	58.7 mm (2.3 in)
1960	47.5 mm (1.9 in)
1961	66.0 mm (2.6 in)
1962	53.1 mm (2.1 in)
1963	54.1 mm (2.1 in)
1964	67.3 mm (2.6 in)
1965	53.3 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Geneva 4 SW, 1915 to 1965. The record is 141.0 mm (5.6 in) in 1954, marked on the chart; the median year is 70.6 mm (2.8 in).

Wettest five days (Rx5day) at Geneva 4 SW by year
Year	Wettest five days (Rx5day)
1915	59.8 mm (2.4 in)
1916	50.6 mm (2.0 in)
1917	69.2 mm (2.7 in)
1918	56.1 mm (2.2 in)
1919	49.5 mm (1.9 in)
1920	18.3 mm (0.7 in)
1943	68.3 mm (2.7 in)
1944	73.1 mm (2.9 in)
1945	65.1 mm (2.6 in)
1946	75.7 mm (3.0 in)
1947	66.3 mm (2.6 in)
1948	68.4 mm (2.7 in)
1949	109.2 mm (4.3 in)
1950	104.2 mm (4.1 in)
1951	67.8 mm (2.7 in)
1952	74.2 mm (2.9 in)
1953	70.6 mm (2.8 in)
1954	141.0 mm (5.6 in)
1955	73.2 mm (2.9 in)
1956	84.5 mm (3.3 in)
1957	64.3 mm (2.5 in)
1958	82.8 mm (3.3 in)
1959	96.8 mm (3.8 in)
1960	51.1 mm (2.0 in)
1961	115.3 mm (4.5 in)
1962	91.9 mm (3.6 in)
1963	85.8 mm (3.4 in)
1964	75.2 mm (3.0 in)
1965	57.9 mm (2.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Geneva 4 SW, 1915 to 1965. The record is 29 days in 1918, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Geneva 4 SW by year
Year	Longest dry spell (CDD)
1915	16 days
1916	9 days
1917	21 days
1918	29 days
1919	18 days
1920	14 days
1943	26 days
1944	17 days
1945	13 days
1946	28 days
1947	26 days
1948	20 days
1949	22 days
1950	12 days
1951	10 days
1952	27 days
1953	21 days
1954	16 days
1955	17 days
1956	15 days
1957	21 days
1958	12 days
1959	15 days
1960	15 days
1961	21 days
1962	14 days
1963	27 days
1964	20 days
1965	20 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

24 years with a frost

Across 24 years with a frost, the median last spring frost at Geneva 4 SW falls on 2 May and the median first autumn frost on 28 October, which leaves a median of 180 days between them.

Frost dates and growing season at Geneva 4 SW
Measure	Median, all years	Earliest period	Recent period (1916 to 1965)	Recent against earliest	Fitted trend
Last spring frost	2 May	n/a	2 May	n/a	n/a
First autumn frost	28 October	n/a	28 October	n/a	n/a
Growing days	180 days	n/a	180 days	n/a	n/a

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 Geneva 4 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Geneva 4 SW 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.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).