Mineral Ridge Wtr Wks Weather Records (USC00335356)

Record envelope, standing records and threshold days for Mineral Ridge Wtr Wks (USC00335356), Ohio, United States, with 72 years of record.

Key Facts for Mineral Ridge Wtr Wks

Mineral Ridge Wtr Wks (USC00335356) is a weather station in Ohio, United States at 41.15 latitude and -80.78 longitude, 271 m (890 ft) above sea level.
The station reports from 1929 to 2000, 72 years of record.
1,464 records set at Mineral Ridge Wtr Wks still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mineral Ridge Wtr Wks set a daily record high minimum temperature of 14.4 C (57.9 F) on 16 April 2000.

About the Station

Location: Ohio, United States, 41.15 latitude, -80.78 longitude.
Elevation: 271 m (890 ft).
Period of record: 1929 to 2000, 72 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

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 Mineral Ridge Wtr Wks. 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 Mineral Ridge Wtr Wks, 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)	-31.1 C (-24.0 F)	n/a	n/a
Feb	23.9 C (75.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-21.7 C (-7.1 F)	n/a	n/a
Apr	32.2 C (90.0 F)	-12.2 C (10.0 F)	n/a	n/a
May	35.0 C (95.0 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	38.9 C (102.0 F)	-1.7 C (28.9 F)	n/a	n/a
Jul	40.6 C (105.1 F)	2.8 C (37.0 F)	n/a	n/a
Aug	40.6 C (105.1 F)	1.1 C (34.0 F)	n/a	n/a
Sep	37.2 C (99.0 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	32.8 C (91.0 F)	-10.0 C (14.0 F)	n/a	n/a
Nov	27.2 C (81.0 F)	-17.2 C (1.0 F)	n/a	n/a
Dec	23.3 C (73.9 F)	-27.2 C (-17.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Mineral Ridge Wtr Wks still stand. 1950 holds the most, with 41.

Standing records at Mineral Ridge Wtr Wks by the year they were set
Year set	Standing records
1940	35
1941	36
1942	29
1943	33
1944	30
1945	33
1946	29
1947	26
1948	26
1949	35
1950	41
1951	27
1952	27
1953	22
1954	30
1955	16
1956	21
1957	17
1958	20
1959	31
1960	27
1961	25
1962	23
1963	35
1964	23
1965	26
1966	24
1967	32
1968	25
1969	15
1970	17
1971	19
1972	24
1973	18
1974	23
1975	14
1976	25
1977	32
1978	16
1979	34
1980	17
1981	16
1982	24
1983	18
1984	35
1985	17
1986	23
1987	14
1988	41
1989	20
1990	28
1991	35
1992	11
1993	14
1994	16
1995	19
1996	20
1997	9
1998	18
1999	13
2000	15

All-Time Record Progression

7 new records

7 all-time records were set at Mineral Ridge Wtr Wks between 17 January 1977 and 19 January 1994. Each dot is a new record.

When Mineral Ridge Wtr Wks set new all-time records
Date	Kind	Detail
1977-01-17	Record low maximum temperature	Record low maximum temperature -19.4 C (-2.9 F)
1979-09-14	Record daily precipitation	Record daily precipitation 91.9 mm (3.6 in)
1987-08-03	Record daily precipitation	Record daily precipitation 99.8 mm (3.9 in)
1988-07-07	Record high maximum temperature	Record high maximum temperature 38.9 C (102.0 F)
1991-07-20	Record high maximum temperature	Record high maximum temperature 39.4 C (102.9 F)
1991-07-21	Record high maximum temperature	Record high maximum temperature 40.6 C (105.1 F)
1994-01-19	Record low minimum temperature	Record low minimum temperature -31.1 C (-24.0 F)

Wettest Day of Each Month

Aug: 99.8 mm (3.9 in)

The wettest day on record for each calendar month at Mineral Ridge Wtr Wks. The most was 99.8 mm (3.9 in) on 3 August 1987.

Record daily precipitation for each month at Mineral Ridge Wtr Wks
Month	Record daily precipitation (mm)	Date
Jan	42.7 mm (1.7 in)	17 January 1952
Feb	74.9 mm (2.9 in)	10 February 1959
Mar	56.1 mm (2.2 in)	29 March 1985
Apr	58.7 mm (2.3 in)	15 April 1972
May	57.9 mm (2.3 in)	12 May 1974
Jun	80.5 mm (3.2 in)	18 June 1977
Jul	76.7 mm (3.0 in)	31 July 1970
Aug	99.8 mm (3.9 in)	3 August 1987
Sep	91.9 mm (3.6 in)	14 September 1979
Oct	76.5 mm (3.0 in)	15 October 1954
Nov	77.2 mm (3.0 in)	4 November 1985
Dec	41.4 mm (1.6 in)	25 December 1979

Period of Record Coverage

1940 to 2000

61 years of record at Mineral Ridge Wtr Wks, 1940 to 2000. 6 years have data for under 90 percent of days and are left out of rankings: 1979, 1990, 1991, 1992, 1993, 2000.

Days with data per year at Mineral Ridge Wtr Wks
Year	Days with data	Share of year	Complete
1940	365	100%	Yes
1941	364	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	366	100%	Yes
1945	365	100%	Yes
1946	365	100%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	364	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	362	99%	Yes
1958	365	100%	Yes
1959	333	91%	Yes
1960	363	99%	Yes
1961	365	100%	Yes
1962	364	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	364	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	363	99%	Yes
1972	366	100%	Yes
1973	347	95%	Yes
1974	360	99%	Yes
1975	365	100%	Yes
1976	365	100%	Yes
1977	359	98%	Yes
1978	348	95%	Yes
1979	305	84%	No
1980	360	98%	Yes
1981	365	100%	Yes
1982	349	96%	Yes
1983	350	96%	Yes
1984	353	96%	Yes
1985	359	98%	Yes
1986	352	96%	Yes
1987	359	98%	Yes
1988	352	96%	Yes
1989	329	90%	Yes
1990	232	64%	No
1991	295	81%	No
1992	329	90%	No
1993	327	90%	No
1994	330	90%	Yes
1995	346	95%	Yes
1996	345	94%	Yes
1997	340	93%	Yes
1998	345	95%	Yes
1999	347	95%	Yes
2000	112	31%	No

Latest Records

Latest records at Mineral Ridge Wtr Wks
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 April 2000	Mineral Ridge Wtr Wks, US	daily high min	14.4 C (57.9 F)	1.1 C (2.0 F)	24 years	15 of 100 (Routine)
8 April 2000	Mineral Ridge Wtr Wks, US	daily rain	38.9 mm (1.5 in)	9.7 mm (0.38 in)	43 years	31 of 100 (Routine)
9 March 2000	Mineral Ridge Wtr Wks, US	daily high min	14.4 C (57.9 F)	9.4 C (16.9 F)	26 years	29 of 100 (Routine)
9 March 2000	Mineral Ridge Wtr Wks, US	daily high max	24.4 C (75.9 F)	3.8 C (6.8 F)	13 years	14 of 100 (Routine)
8 March 2000	Mineral Ridge Wtr Wks, US	daily high min	11.7 C (53.1 F)	2.8 C (5.0 F)	8 years	12 of 100 (Routine)
8 March 2000	Mineral Ridge Wtr Wks, US	daily high max	25.6 C (78.1 F)	1.7 C (3.1 F)	13 years	11 of 100 (Routine)
7 March 2000	Mineral Ridge Wtr Wks, US	daily high max	24.4 C (75.9 F)	2.2 C (4.0 F)	13 years	12 of 100 (Routine)
1 March 2000	Mineral Ridge Wtr Wks, US	daily high min	7.2 C (45.0 F)	3.3 C (5.9 F)	45 years	24 of 100 (Routine)
29 February 2000	Mineral Ridge Wtr Wks, US	daily high min	2.8 C (37.0 F)	0.6 C (1.1 F)	28 years	14 of 100 (Routine)
27 February 2000	Mineral Ridge Wtr Wks, US	daily high max (Tie)	17.8 C (64.0 F)	tie	2 years	1 of 100 (Routine)
26 February 2000	Mineral Ridge Wtr Wks, US	daily high max	21.7 C (71.1 F)	3.4 C (6.1 F)	28 years	19 of 100 (Routine)
26 February 2000	Mineral Ridge Wtr Wks, US	monthly high min (Tie)	12.2 C (54.0 F)	tie	46 years	7 of 100 (Routine)
25 February 2000	Mineral Ridge Wtr Wks, US	monthly high max	23.9 C (75.0 F)	1.1 C (2.0 F)	3 years	17 of 100 (Routine)
25 February 2000	Mineral Ridge Wtr Wks, US	daily high min	7.8 C (46.0 F)	2.8 C (5.0 F)	24 years	17 of 100 (Routine)
23 February 2000	Mineral Ridge Wtr Wks, US	daily high max	20.0 C (68.0 F)	1.7 C (3.1 F)	16 years	12 of 100 (Routine)
22 February 2000	Mineral Ridge Wtr Wks, US	daily high min (Tie)	3.9 C (39.0 F)	tie	14 years	2 of 100 (Routine)
19 February 2000	Mineral Ridge Wtr Wks, US	daily rain	17.3 mm (0.7 in)	1.3 mm (0.05 in)	18 years	14 of 100 (Routine)
4 January 2000	Mineral Ridge Wtr Wks, US	daily rain	36.1 mm (1.4 in)	20.1 mm (0.8 in)	26 years	47 of 100 (Notable)
3 January 2000	Mineral Ridge Wtr Wks, US	daily high max	17.2 C (63.0 F)	1.6 C (2.9 F)	2 years	8 of 100 (Routine)
2 January 2000	Mineral Ridge Wtr Wks, US	daily high max	17.2 C (63.0 F)	0.5 C (0.9 F)	14 years	10 of 100 (Routine)

Climate Trend

54 complete years, 1940 to 1999

One stripe for each of 54 complete years at Mineral Ridge Wtr Wks, 1940 to 1999. Blue stripes are years cooler than the station's own mean of 10.4 C (50.7 F); red stripes are warmer. The coolest year was 1963, at 9.1 C (48.5 F), and the warmest was 1998, at 12.4 C (54.3 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Mineral Ridge Wtr Wks as warming stripes, 1940 to 1999
Year	Annual mean temperature	Difference from the station mean
1940	9.8 C	-0.61 C
1941	11.1 C	+0.67 C
1942	10.9 C	+0.55 C
1943	9.9 C	-0.51 C
1944	10.4 C	-0.01 C
1945	9.9 C	-0.45 C
1946	11.0 C	+0.59 C
1947	10.0 C	-0.35 C
1948	10.2 C	-0.17 C
1949	11.4 C	+1.05 C
1950	9.5 C	-0.86 C
1951	9.9 C	-0.46 C
1952	10.8 C	+0.36 C
1953	11.3 C	+0.90 C
1954	10.7 C	+0.31 C
1955	10.7 C	+0.33 C
1956	10.2 C	-0.23 C
1957	10.6 C	+0.23 C
1958	9.4 C	-0.96 C
1960	9.8 C	-0.64 C
1961	10.3 C	-0.10 C
1962	9.7 C	-0.65 C
1963	9.1 C	-1.25 C
1964	10.6 C	+0.21 C
1965	10.2 C	-0.19 C
1966	9.8 C	-0.64 C
1967	10.0 C	-0.40 C
1968	10.0 C	-0.36 C
1969	10.0 C	-0.43 C
1970	10.6 C	+0.22 C
1971	10.6 C	+0.19 C
1972	9.9 C	-0.50 C
1974	10.5 C	+0.06 C
1975	10.9 C	+0.55 C
1976	9.8 C	-0.56 C
1977	10.2 C	-0.15 C
1978	9.1 C	-1.25 C
1980	9.9 C	-0.51 C
1981	10.2 C	-0.19 C
1982	10.5 C	+0.15 C
1983	11.0 C	+0.65 C
1984	10.6 C	+0.20 C
1985	10.6 C	+0.18 C
1986	11.2 C	+0.84 C
1987	11.2 C	+0.82 C
1988	10.0 C	-0.39 C
1992	10.7 C	+0.27 C
1993	10.6 C	+0.25 C
1994	10.5 C	+0.14 C
1995	10.6 C	+0.25 C
1996	10.1 C	-0.29 C
1997	10.3 C	-0.14 C
1998	12.4 C	+1.99 C
1999	11.6 C	+1.23 C

The fitted trend in annual mean temperature here over 1940 to 1999 is 0.08 C (-0.01 to 0.18) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.15 F (-0.03 to 0.32) 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 Mineral Ridge Wtr Wks
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.08 C (-0.01 to 0.18) per decade	0.15 F (-0.03 to 0.32) per decade	1940 to 1999	54	Not clearly different from zero
Mean daily maximum	0.05 C (-0.06 to 0.16) per decade	0.1 F (-0.1 to 0.3) per decade	1940 to 1999	54	Not clearly different from zero
Mean daily minimum	0.12 C (0.01 to 0.22) per decade	0.21 F (0.02 to 0.40) per decade	1940 to 1999	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

1929 to 2000

Yearly extremes at Mineral Ridge Wtr Wks: 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)	1991	35.0 C (95.0 F)	61
Coldest night (TNn)	-31.1 C (-24.0 F)	1994	-21.7 C (-7.1 F)	61
Wettest day (Rx1day)	99.8 mm (3.9 in)	1987	49.4 mm (1.9 in)	72
Wettest five days (Rx5day)	141.4 mm (5.6 in)	1985	78.2 mm (3.1 in)	72
Longest dry spell (CDD)	29 days	1963	15 days	72

Hottest day (TXx)

The hottest day of the year at Mineral Ridge Wtr Wks, 1929 to 2000. The record is 40.6 C (105.1 F) in 1991, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Mineral Ridge Wtr Wks by year
Year	Hottest day (TXx)
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	37.2 C (99.0 F)
1941	36.1 C (97.0 F)
1942	36.7 C (98.1 F)
1943	34.4 C (93.9 F)
1944	37.8 C (100.0 F)
1945	35.6 C (96.1 F)
1946	35.0 C (95.0 F)
1947	35.6 C (96.1 F)
1948	36.7 C (98.1 F)
1949	35.6 C (96.1 F)
1950	35.6 C (96.1 F)
1951	35.0 C (95.0 F)
1952	37.2 C (99.0 F)
1953	37.2 C (99.0 F)
1954	37.8 C (100.0 F)
1955	35.6 C (96.1 F)
1956	33.9 C (93.0 F)
1957	35.0 C (95.0 F)
1958	31.7 C (89.1 F)
1959	35.0 C (95.0 F)
1960	32.8 C (91.0 F)
1961	33.3 C (91.9 F)
1962	33.9 C (93.0 F)
1963	34.4 C (93.9 F)
1964	34.4 C (93.9 F)
1965	35.0 C (95.0 F)
1966	36.7 C (98.1 F)
1967	33.9 C (93.0 F)
1968	34.4 C (93.9 F)
1969	33.9 C (93.0 F)
1970	33.3 C (91.9 F)
1971	36.7 C (98.1 F)
1972	33.9 C (93.0 F)
1973	35.6 C (96.1 F)
1974	34.4 C (93.9 F)
1975	35.0 C (95.0 F)
1976	33.3 C (91.9 F)
1977	35.0 C (95.0 F)
1978	34.4 C (93.9 F)
1979	32.2 C (90.0 F)
1980	35.6 C (96.1 F)
1981	33.3 C (91.9 F)
1982	33.3 C (91.9 F)
1983	35.6 C (96.1 F)
1984	35.0 C (95.0 F)
1985	35.0 C (95.0 F)
1986	36.7 C (98.1 F)
1987	35.0 C (95.0 F)
1988	38.9 C (102.0 F)
1989	34.4 C (93.9 F)
1990	38.9 C (102.0 F)
1991	40.6 C (105.1 F)
1992	35.0 C (95.0 F)
1993	36.1 C (97.0 F)
1994	35.6 C (96.1 F)
1995	37.8 C (100.0 F)
1996	35.0 C (95.0 F)
1997	33.9 C (93.0 F)
1998	35.0 C (95.0 F)
1999	36.7 C (98.1 F)
2000	26.7 C (80.1 F)

Coldest night (TNn)

The coldest night of the year at Mineral Ridge Wtr Wks, 1929 to 2000. The record is -31.1 C (-24.0 F) in 1994, marked on the chart; the median year is -21.7 C (-7.1 F).

Coldest night (TNn) at Mineral Ridge Wtr Wks by year
Year	Coldest night (TNn)
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	-23.9 C (-11.0 F)
1941	-17.8 C (0.0 F)
1942	-25.6 C (-14.1 F)
1943	-21.1 C (-6.0 F)
1944	-21.1 C (-6.0 F)
1945	-24.4 C (-11.9 F)
1946	-21.7 C (-7.1 F)
1947	-18.3 C (-0.9 F)
1948	-27.8 C (-18.0 F)
1949	-17.8 C (0.0 F)
1950	-27.2 C (-17.0 F)
1951	-28.9 C (-20.0 F)
1952	-15.6 C (3.9 F)
1953	-13.3 C (8.1 F)
1954	-17.8 C (0.0 F)
1955	-22.2 C (-8.0 F)
1956	-18.3 C (-0.9 F)
1957	-22.8 C (-9.0 F)
1958	-22.8 C (-9.0 F)
1959	-19.4 C (-2.9 F)
1960	-22.8 C (-9.0 F)
1961	-25.6 C (-14.1 F)
1962	-22.2 C (-8.0 F)
1963	-28.9 C (-20.0 F)
1964	-27.2 C (-17.0 F)
1965	-25.6 C (-14.1 F)
1966	-23.9 C (-11.0 F)
1967	-22.2 C (-8.0 F)
1968	-22.8 C (-9.0 F)
1969	-18.3 C (-0.9 F)
1970	-23.9 C (-11.0 F)
1971	-21.1 C (-6.0 F)
1972	-22.8 C (-9.0 F)
1973	-21.1 C (-6.0 F)
1974	-16.7 C (1.9 F)
1975	-23.3 C (-9.9 F)
1976	-21.1 C (-6.0 F)
1977	-26.1 C (-15.0 F)
1978	-23.9 C (-11.0 F)
1979	-26.7 C (-16.1 F)
1980	-21.1 C (-6.0 F)
1981	-21.7 C (-7.1 F)
1982	-27.2 C (-17.0 F)
1983	-23.9 C (-11.0 F)
1984	-26.7 C (-16.1 F)
1985	-27.8 C (-18.0 F)
1986	-20.0 C (-4.0 F)
1987	-18.3 C (-0.9 F)
1988	-21.1 C (-6.0 F)
1989	-17.2 C (1.0 F)
1990	-18.3 C (-0.9 F)
1991	-14.4 C (6.1 F)
1992	-16.1 C (3.0 F)
1993	-18.9 C (-2.0 F)
1994	-31.1 C (-24.0 F)
1995	-19.4 C (-2.9 F)
1996	-22.8 C (-9.0 F)
1997	-18.3 C (-0.9 F)
1998	-12.8 C (9.0 F)
1999	-18.3 C (-0.9 F)
2000	-18.3 C (-0.9 F)

Wettest day (Rx1day)

The wettest day of the year at Mineral Ridge Wtr Wks, 1929 to 2000. The record is 99.8 mm (3.9 in) in 1987, marked on the chart; the median year is 49.4 mm (1.9 in).

Wettest day (Rx1day) at Mineral Ridge Wtr Wks by year
Year	Wettest day (Rx1day)
1929	47.8 mm (1.9 in)
1930	36.6 mm (1.4 in)
1931	36.8 mm (1.4 in)
1932	45.7 mm (1.8 in)
1933	30.2 mm (1.2 in)
1934	85.9 mm (3.4 in)
1935	71.1 mm (2.8 in)
1936	45.5 mm (1.8 in)
1937	52.1 mm (2.1 in)
1938	43.9 mm (1.7 in)
1939	62.2 mm (2.4 in)
1940	52.1 mm (2.1 in)
1941	41.4 mm (1.6 in)
1942	39.4 mm (1.6 in)
1943	27.9 mm (1.1 in)
1944	31.5 mm (1.2 in)
1945	39.6 mm (1.6 in)
1946	41.7 mm (1.6 in)
1947	54.6 mm (2.1 in)
1948	38.1 mm (1.5 in)
1949	36.3 mm (1.4 in)
1950	50.5 mm (2.0 in)
1951	50.8 mm (2.0 in)
1952	61.2 mm (2.4 in)
1953	36.8 mm (1.4 in)
1954	76.5 mm (3.0 in)
1955	62.5 mm (2.5 in)
1956	33.3 mm (1.3 in)
1957	62.2 mm (2.4 in)
1958	41.4 mm (1.6 in)
1959	74.9 mm (2.9 in)
1960	36.3 mm (1.4 in)
1961	46.0 mm (1.8 in)
1962	47.8 mm (1.9 in)
1963	32.5 mm (1.3 in)
1964	65.8 mm (2.6 in)
1965	42.7 mm (1.7 in)
1966	53.1 mm (2.1 in)
1967	37.6 mm (1.5 in)
1968	45.2 mm (1.8 in)
1969	47.0 mm (1.9 in)
1970	76.7 mm (3.0 in)
1971	33.5 mm (1.3 in)
1972	58.7 mm (2.3 in)
1973	53.8 mm (2.1 in)
1974	57.9 mm (2.3 in)
1975	54.6 mm (2.1 in)
1976	61.2 mm (2.4 in)
1977	80.5 mm (3.2 in)
1978	33.3 mm (1.3 in)
1979	91.9 mm (3.6 in)
1980	67.1 mm (2.6 in)
1981	59.2 mm (2.3 in)
1982	37.6 mm (1.5 in)
1983	66.0 mm (2.6 in)
1984	34.8 mm (1.4 in)
1985	77.2 mm (3.0 in)
1986	60.7 mm (2.4 in)
1987	99.8 mm (3.9 in)
1988	55.4 mm (2.2 in)
1989	45.0 mm (1.8 in)
1990	50.8 mm (2.0 in)
1991	64.5 mm (2.5 in)
1992	50.5 mm (2.0 in)
1993	61.2 mm (2.4 in)
1994	52.8 mm (2.1 in)
1995	48.3 mm (1.9 in)
1996	48.3 mm (1.9 in)
1997	47.8 mm (1.9 in)
1998	43.7 mm (1.7 in)
1999	68.6 mm (2.7 in)
2000	38.9 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mineral Ridge Wtr Wks, 1929 to 2000. The record is 141.4 mm (5.6 in) in 1985, marked on the chart; the median year is 78.2 mm (3.1 in).

Wettest five days (Rx5day) at Mineral Ridge Wtr Wks by year
Year	Wettest five days (Rx5day)
1929	79.3 mm (3.1 in)
1930	51.5 mm (2.0 in)
1931	57.7 mm (2.3 in)
1932	64.0 mm (2.5 in)
1933	60.7 mm (2.4 in)
1934	93.5 mm (3.7 in)
1935	117.4 mm (4.6 in)
1936	69.9 mm (2.8 in)
1937	87.1 mm (3.4 in)
1938	80.3 mm (3.2 in)
1939	94.2 mm (3.7 in)
1940	71.4 mm (2.8 in)
1941	75.7 mm (3.0 in)
1942	86.4 mm (3.4 in)
1943	94.5 mm (3.7 in)
1944	43.0 mm (1.7 in)
1945	62.7 mm (2.5 in)
1946	80.8 mm (3.2 in)
1947	67.9 mm (2.7 in)
1948	67.1 mm (2.6 in)
1949	65.5 mm (2.6 in)
1950	59.7 mm (2.4 in)
1951	52.3 mm (2.1 in)
1952	76.4 mm (3.0 in)
1953	42.9 mm (1.7 in)
1954	126.2 mm (5.0 in)
1955	79.8 mm (3.1 in)
1956	62.9 mm (2.5 in)
1957	97.2 mm (3.8 in)
1958	88.4 mm (3.5 in)
1959	84.8 mm (3.3 in)
1960	62.0 mm (2.4 in)
1961	55.9 mm (2.2 in)
1962	49.7 mm (2.0 in)
1963	37.4 mm (1.5 in)
1964	86.3 mm (3.4 in)
1965	53.4 mm (2.1 in)
1966	66.3 mm (2.6 in)
1967	47.4 mm (1.9 in)
1968	54.6 mm (2.1 in)
1969	64.7 mm (2.5 in)
1970	92.3 mm (3.6 in)
1971	55.4 mm (2.2 in)
1972	91.0 mm (3.6 in)
1973	67.1 mm (2.6 in)
1974	91.7 mm (3.6 in)
1975	93.3 mm (3.7 in)
1976	114.8 mm (4.5 in)
1977	104.6 mm (4.1 in)
1978	62.0 mm (2.4 in)
1979	94.5 mm (3.7 in)
1980	75.8 mm (3.0 in)
1981	88.2 mm (3.5 in)
1982	64.5 mm (2.5 in)
1983	89.2 mm (3.5 in)
1984	52.3 mm (2.1 in)
1985	141.4 mm (5.6 in)
1986	86.6 mm (3.4 in)
1987	113.0 mm (4.4 in)
1988	118.1 mm (4.6 in)
1989	68.4 mm (2.7 in)
1990	81.7 mm (3.2 in)
1991	84.0 mm (3.3 in)
1992	102.1 mm (4.0 in)
1993	121.9 mm (4.8 in)
1994	97.7 mm (3.8 in)
1995	80.1 mm (3.2 in)
1996	72.1 mm (2.8 in)
1997	62.5 mm (2.5 in)
1998	77.0 mm (3.0 in)
1999	80.0 mm (3.1 in)
2000	80.1 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mineral Ridge Wtr Wks, 1929 to 2000. The record is 29 days in 1963, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at Mineral Ridge Wtr Wks by year
Year	Longest dry spell (CDD)
1929	13 days
1930	13 days
1931	16 days
1932	15 days
1933	18 days
1934	20 days
1935	20 days
1936	11 days
1937	12 days
1938	26 days
1939	22 days
1940	13 days
1941	21 days
1942	19 days
1943	26 days
1944	18 days
1945	14 days
1946	21 days
1947	15 days
1948	20 days
1949	21 days
1950	12 days
1951	16 days
1952	15 days
1953	21 days
1954	13 days
1955	16 days
1956	14 days
1957	13 days
1958	15 days
1959	12 days
1960	16 days
1961	14 days
1962	18 days
1963	29 days
1964	23 days
1965	15 days
1966	14 days
1967	25 days
1968	11 days
1969	18 days
1970	13 days
1971	17 days
1972	12 days
1973	13 days
1974	13 days
1975	14 days
1976	25 days
1977	19 days
1978	20 days
1979	9 days
1980	17 days
1981	16 days
1982	20 days
1983	22 days
1984	15 days
1985	14 days
1986	10 days
1987	12 days
1988	14 days
1989	15 days
1990	12 days
1991	15 days
1992	11 days
1993	18 days
1994	14 days
1995	23 days
1996	13 days
1997	12 days
1998	17 days
1999	21 days
2000	10 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 Mineral Ridge Wtr Wks falls on 11 May and the median first autumn frost on 10 October, which leaves a median of 154 days between them.

Fitted over all years, the growing season changes by +2.7 days per decade at this station.

Frost dates and growing season at Mineral Ridge Wtr Wks
Measure	Median, all years	Earliest period	Recent period (1965 to 1999)	Recent against earliest	Fitted trend
Last spring frost	11 May	n/a	9 May	n/a	-0.7 days per decade
First autumn frost	10 October	n/a	13 October	n/a	+2.0 days per decade
Growing days	154 days	n/a	157 days	n/a	+2.7 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

69 years, 1930 to 1999

A day with at least 49.7 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 102.0 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Mineral Ridge Wtr Wks: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	49.7 mm (2.0 in)
5 years	64.0 mm (2.5 in)
10 years	73.3 mm (2.9 in)
25 years	85.0 mm (3.3 in)
50 years	93.6 mm (3.7 in)
100 years	102.0 mm (4.0 in)	Longer than the 69 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, 69 years of values from 1930 to 1999.

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: 99.8 mm (3.9 in) in 1987; 91.9 mm (3.6 in) in 1979; 85.9 mm (3.4 in) in 1934.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Mineral Ridge Wtr Wks standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mineral Ridge Wtr Wks 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.

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