North Royalton Weather Records (USC00336085)

Record envelope, standing records and threshold days for North Royalton (USC00336085), Ohio, United States, with 31 years of record.

Key Facts for North Royalton

North Royalton (USC00336085) is a weather station in Ohio, United States at 41.22 latitude and -81.75 longitude, 305 m (1,000 ft) above sea level.
The station reports from 1893 to 1923, 31 years of record.
1,464 records set at North Royalton still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
North Royalton set a daily record low minimum temperature of -13.9 C (7.0 F) on 31 March 1923.

About the Station

Location: Ohio, United States, 41.22 latitude, -81.75 longitude.
Elevation: 305 m (1,000 ft).
Period of record: 1893 to 1923, 31 years.
Eligible elements: tmax, tmin.

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 North Royalton. 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 North Royalton, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.7 C (71.1 F)	-27.8 C (-18.0 F)	n/a	n/a
Feb	18.9 C (66.0 F)	-30.0 C (-22.0 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-20.6 C (-5.1 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-10.6 C (12.9 F)	n/a	n/a
May	34.4 C (93.9 F)	-2.8 C (27.0 F)	n/a	n/a
Jun	35.6 C (96.1 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	3.3 C (37.9 F)	n/a	n/a
Aug	38.9 C (102.0 F)	2.8 C (37.0 F)	n/a	n/a
Sep	36.1 C (97.0 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	32.2 C (90.0 F)	-6.7 C (19.9 F)	n/a	n/a
Nov	24.4 C (75.9 F)	-13.9 C (7.0 F)	n/a	n/a
Dec	17.8 C (64.0 F)	-24.4 C (-11.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at North Royalton still stand. 1895 holds the most, with 98.

Standing records at North Royalton by the year they were set
Year set	Standing records
1893	53
1894	57
1895	98
1896	73
1897	39
1898	55
1899	74
1900	64
1901	53
1902	47
1903	63
1904	43
1905	29
1906	50
1907	46
1908	40
1909	46
1910	35
1911	41
1912	47
1913	53
1914	54
1915	42
1916	53
1917	55
1918	50
1919	30
1920	24
1921	22
1922	24
1923	4

Wettest Day of Each Month

Aug: 114.3 mm (4.5 in)

The wettest day on record for each calendar month at North Royalton. The most was 114.3 mm (4.5 in) on 27 August 1903.

Record daily precipitation for each month at North Royalton
Month	Record daily precipitation (mm)	Date
Jan	45.7 mm (1.8 in)	1 January 1916
Feb	40.6 mm (1.6 in)	5 February 1906
Mar	87.1 mm (3.4 in)	25 March 1913
Apr	51.3 mm (2.0 in)	3 April 1903
May	82.6 mm (3.3 in)	17 May 1893
Jun	49.5 mm (1.9 in)	23 June 1921
Jul	68.1 mm (2.7 in)	14 July 1912
Aug	114.3 mm (4.5 in)	27 August 1903
Sep	78.5 mm (3.1 in)	15 September 1911
Oct	50.8 mm (2.0 in)	6 October 1910
Nov	61.0 mm (2.4 in)	1 November 1921
Dec	36.8 mm (1.4 in)	14 December 1901

Period of Record Coverage

1893 to 1923

31 years of record at North Royalton, 1893 to 1923. 3 years have data for under 90 percent of days and are left out of rankings: 1893, 1920, 1923.

Days with data per year at North Royalton
Year	Days with data	Share of year	Complete
1893	274	75%	No
1894	355	97%	Yes
1895	362	99%	Yes
1896	361	99%	Yes
1897	334	92%	Yes
1898	365	100%	Yes
1899	362	99%	Yes
1900	363	99%	Yes
1901	362	99%	Yes
1902	358	98%	Yes
1903	357	98%	Yes
1904	362	99%	Yes
1905	353	97%	Yes
1906	359	98%	Yes
1907	363	99%	Yes
1908	358	98%	Yes
1909	365	100%	Yes
1910	361	99%	Yes
1911	331	91%	Yes
1912	366	100%	Yes
1913	362	99%	Yes
1914	361	99%	Yes
1915	358	98%	Yes
1916	366	100%	Yes
1917	364	100%	Yes
1918	361	99%	Yes
1919	336	92%	Yes
1920	303	83%	No
1921	332	91%	Yes
1922	332	91%	Yes
1923	53	15%	No

Latest Records

Latest records at North Royalton
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 March 1923	North Royalton, US	daily low min	-13.9 C (7.0 F)	7.2 C (13.0 F)	12 years	17 of 100 (Routine)
31 March 1923	North Royalton, US	daily low max	-3.9 C (25.0 F)	0.6 C (1.1 F)	4 years	4 of 100 (Routine)
30 March 1923	North Royalton, US	daily low min	-10.6 C (12.9 F)	0.6 C (1.1 F)	8 years	5 of 100 (Routine)
20 March 1923	North Royalton, US	daily low min	-13.9 C (7.0 F)	0.6 C (1.1 F)	8 years	5 of 100 (Routine)

Climate Trend

23 complete years, 1894 to 1918

One stripe for each of 23 complete years at North Royalton, 1894 to 1918. Blue stripes are years cooler than the station's own mean of 9.4 C (48.9 F); red stripes are warmer. The coolest year was 1917, at 7.5 C (45.6 F), and the warmest was 1898, at 10.5 C (50.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at North Royalton as warming stripes, 1894 to 1918
Year	Annual mean temperature	Difference from the station mean
1894	10.4 C	+1.03 C
1895	9.0 C	-0.36 C
1896	10.0 C	+0.62 C
1898	10.5 C	+1.13 C
1899	10.2 C	+0.78 C
1900	10.5 C	+1.11 C
1901	9.2 C	-0.16 C
1902	9.4 C	+0.01 C
1903	9.3 C	-0.13 C
1904	7.8 C	-1.55 C
1905	8.8 C	-0.63 C
1906	9.9 C	+0.52 C
1907	8.4 C	-1.01 C
1908	10.2 C	+0.83 C
1909	9.3 C	-0.11 C
1910	9.3 C	-0.09 C
1912	8.5 C	-0.84 C
1913	10.2 C	+0.84 C
1914	9.0 C	-0.43 C
1915	9.3 C	-0.10 C
1916	9.4 C	-0.01 C
1917	7.5 C	-1.84 C
1918	9.7 C	+0.29 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

1893 to 1923

Yearly extremes at North Royalton: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	1894	35.6 C (96.1 F)	31
Coldest night (TNn)	-30.0 C (-22.0 F)	1918	-22.8 C (-9.0 F)	31
Wettest day (Rx1day)	114.3 mm (4.5 in)	1903	45.0 mm (1.8 in)	31
Wettest five days (Rx5day)	203.4 mm (8.0 in)	1913	68.5 mm (2.7 in)	31
Longest dry spell (CDD)	25 days	1922	14 days	31

Hottest day (TXx)

The hottest day of the year at North Royalton, 1893 to 1923. The record is 38.9 C (102.0 F) in 1894, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at North Royalton by year
Year	Hottest day (TXx)
1893	35.6 C (96.1 F)
1894	38.9 C (102.0 F)
1895	36.1 C (97.0 F)
1896	35.0 C (95.0 F)
1897	37.8 C (100.0 F)
1898	36.1 C (97.0 F)
1899	36.7 C (98.1 F)
1900	37.8 C (100.0 F)
1901	37.2 C (99.0 F)
1902	32.8 C (91.0 F)
1903	35.0 C (95.0 F)
1904	33.3 C (91.9 F)
1905	33.3 C (91.9 F)
1906	34.4 C (93.9 F)
1907	32.8 C (91.0 F)
1908	35.6 C (96.1 F)
1909	33.3 C (91.9 F)
1910	35.6 C (96.1 F)
1911	38.3 C (100.9 F)
1912	33.3 C (91.9 F)
1913	35.6 C (96.1 F)
1914	35.6 C (96.1 F)
1915	36.7 C (98.1 F)
1916	36.7 C (98.1 F)
1917	35.0 C (95.0 F)
1918	38.9 C (102.0 F)
1919	34.4 C (93.9 F)
1920	33.3 C (91.9 F)
1921	36.1 C (97.0 F)
1922	33.9 C (93.0 F)
1923	18.9 C (66.0 F)

Coldest night (TNn)

The coldest night of the year at North Royalton, 1893 to 1923. The record is -30.0 C (-22.0 F) in 1918, marked on the chart; the median year is -22.8 C (-9.0 F).

Coldest night (TNn) at North Royalton by year
Year	Coldest night (TNn)
1893	-17.8 C (0.0 F)
1894	-21.7 C (-7.1 F)
1895	-25.0 C (-13.0 F)
1896	-23.9 C (-11.0 F)
1897	-27.8 C (-18.0 F)
1898	-22.8 C (-9.0 F)
1899	-28.9 C (-20.0 F)
1900	-22.8 C (-9.0 F)
1901	-23.9 C (-11.0 F)
1902	-21.7 C (-7.1 F)
1903	-22.8 C (-9.0 F)
1904	-25.6 C (-14.1 F)
1905	-25.0 C (-13.0 F)
1906	-20.6 C (-5.1 F)
1907	-22.2 C (-8.0 F)
1908	-19.4 C (-2.9 F)
1909	-23.3 C (-9.9 F)
1910	-21.1 C (-6.0 F)
1911	-15.0 C (5.0 F)
1912	-27.2 C (-17.0 F)
1913	-19.4 C (-2.9 F)
1914	-23.3 C (-9.9 F)
1915	-23.3 C (-9.9 F)
1916	-20.6 C (-5.1 F)
1917	-29.4 C (-20.9 F)
1918	-30.0 C (-22.0 F)
1919	-18.9 C (-2.0 F)
1920	-21.7 C (-7.1 F)
1921	-15.6 C (3.9 F)
1922	-20.6 C (-5.1 F)
1923	-13.9 C (7.0 F)

Wettest day (Rx1day)

The wettest day of the year at North Royalton, 1893 to 1923. The record is 114.3 mm (4.5 in) in 1903, marked on the chart; the median year is 45.0 mm (1.8 in).

Wettest day (Rx1day) at North Royalton by year
Year	Wettest day (Rx1day)
1893	82.6 mm (3.3 in)
1894	48.5 mm (1.9 in)
1895	41.7 mm (1.6 in)
1896	48.3 mm (1.9 in)
1897	41.1 mm (1.6 in)
1898	39.1 mm (1.5 in)
1899	32.3 mm (1.3 in)
1900	43.9 mm (1.7 in)
1901	52.8 mm (2.1 in)
1902	42.4 mm (1.7 in)
1903	114.3 mm (4.5 in)
1904	44.5 mm (1.8 in)
1905	38.1 mm (1.5 in)
1906	40.6 mm (1.6 in)
1907	47.0 mm (1.9 in)
1908	35.1 mm (1.4 in)
1909	67.8 mm (2.7 in)
1910	50.8 mm (2.0 in)
1911	78.5 mm (3.1 in)
1912	68.1 mm (2.7 in)
1913	87.1 mm (3.4 in)
1914	58.4 mm (2.3 in)
1915	41.4 mm (1.6 in)
1916	48.8 mm (1.9 in)
1917	39.4 mm (1.6 in)
1918	52.6 mm (2.1 in)
1919	45.0 mm (1.8 in)
1920	35.6 mm (1.4 in)
1921	61.0 mm (2.4 in)
1922	41.9 mm (1.6 in)
1923	30.5 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at North Royalton, 1893 to 1923. The record is 203.4 mm (8.0 in) in 1913, marked on the chart; the median year is 68.5 mm (2.7 in).

Wettest five days (Rx5day) at North Royalton by year
Year	Wettest five days (Rx5day)
1893	38.6 mm (1.5 in)
1894	25.0 mm (1.0 in)
1895	60.2 mm (2.4 in)
1896	139.8 mm (5.5 in)
1897	64.9 mm (2.6 in)
1898	56.4 mm (2.2 in)
1899	66.1 mm (2.6 in)
1900	61.2 mm (2.4 in)
1901	81.3 mm (3.2 in)
1902	68.0 mm (2.7 in)
1903	176.7 mm (7.0 in)
1904	93.5 mm (3.7 in)
1905	60.5 mm (2.4 in)
1906	67.4 mm (2.7 in)
1907	101.1 mm (4.0 in)
1908	61.2 mm (2.4 in)
1909	108.4 mm (4.3 in)
1910	101.6 mm (4.0 in)
1911	111.8 mm (4.4 in)
1912	89.7 mm (3.5 in)
1913	203.4 mm (8.0 in)
1914	88.8 mm (3.5 in)
1915	53.6 mm (2.1 in)
1916	76.1 mm (3.0 in)
1917	58.7 mm (2.3 in)
1918	74.5 mm (2.9 in)
1919	70.8 mm (2.8 in)
1920	68.5 mm (2.7 in)
1921	68.7 mm (2.7 in)
1922	51.9 mm (2.0 in)
1923	40.7 mm (1.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at North Royalton, 1893 to 1923. The record is 25 days in 1922, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at North Royalton by year
Year	Longest dry spell (CDD)
1893	2 days
1894	17 days
1895	1 day
1896	1 day
1897	4 days
1898	11 days
1899	16 days
1900	15 days
1901	14 days
1902	11 days
1903	19 days
1904	13 days
1905	14 days
1906	12 days
1907	10 days
1908	20 days
1909	13 days
1910	24 days
1911	10 days
1912	13 days
1913	16 days
1914	20 days
1915	18 days
1916	22 days
1917	21 days
1918	21 days
1919	17 days
1920	23 days
1921	14 days
1922	25 days
1923	6 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

23 years with a frost

Across 23 years with a frost, the median last spring frost at North Royalton falls on 3 May and the median first autumn frost on 12 October, which leaves a median of 167 days between them.

Frost dates and growing season at North Royalton
Measure	Median, all years	Earliest period	Recent period (1894 to 1918)	Recent against earliest	Fitted trend
Last spring frost	3 May	n/a	3 May	n/a	n/a
First autumn frost	12 October	n/a	12 October	n/a	n/a
Growing days	167 days	n/a	167 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 North Royalton standing records by year: CSV or JSON. Field meanings are on the data page.
Data for North Royalton 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 2026-10-17 (17 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).