Union City Filtration Plt Weather Records (USC00369042)

Record envelope, standing records and threshold days for Union City Filtration Plt (USC00369042), Pennsylvania, United States, with 77 years of record.

Key Facts for Union City Filtration Plt

Union City Filtration Plt (USC00369042) is a weather station in Pennsylvania, United States at 41.90 latitude and -79.86 longitude, 378 m (1,240 ft) above sea level.
The station reports from 1950 to 2026, 77 years of record.
1,464 records set at Union City Filtration Plt still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Union City Filtration Plt set a daily record precipitation of 60.2 mm (2.4 in) on 3 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Pennsylvania, United States, 41.90 latitude, -79.86 longitude.
Elevation: 378 m (1,240 ft).
Period of record: 1950 to 2026, 77 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

52 days at or beyond a record

The band shows the record high and record low for each calendar day at Union City Filtration Plt. The lines show the 2026 daily maximum and minimum. 52 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Union City Filtration Plt, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-29.4 C (-20.9 F)	14.4 C (57.9 F)	-29.4 C (-20.9 F)
Feb	22.8 C (73.0 F)	-30.0 C (-22.0 F)	13.3 C (55.9 F)	-27.2 C (-17.0 F)
Mar	24.4 C (75.9 F)	-24.4 C (-11.9 F)	23.9 C (75.0 F)	-11.7 C (10.9 F)
Apr	28.9 C (84.0 F)	-10.6 C (12.9 F)	26.7 C (80.1 F)	-8.3 C (17.1 F)
May	32.2 C (90.0 F)	-3.3 C (26.1 F)	31.1 C (88.0 F)	-3.3 C (26.1 F)
Jun	33.3 C (91.9 F)	0.0 C (32.0 F)	30.6 C (87.1 F)	3.9 C (39.0 F)
Jul	33.3 C (91.9 F)	5.6 C (42.1 F)	33.3 C (91.9 F)	5.6 C (42.1 F)
Aug	32.2 C (90.0 F)	3.9 C (39.0 F)	29.4 C (84.9 F)	5.0 C (41.0 F)
Sep	32.2 C (90.0 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-3.9 C (25.0 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-15.0 C (5.0 F)	n/a	n/a
Dec	17.2 C (63.0 F)	-20.6 C (-5.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Union City Filtration Plt still stand. 2013 holds the most, with 134.

All-Time Record Progression

3 new records

3 all-time records were set at Union City Filtration Plt between 13 August 1990 and 9 September 2004. Each dot is a new record.

When Union City Filtration Plt set new all-time records
Date	Kind	Detail
1990-08-13	Record daily precipitation	Record daily precipitation 94.0 mm (3.7 in)
1994-08-14	Record daily precipitation	Record daily precipitation 109.5 mm (4.3 in)
2004-09-09	Record daily precipitation	Record daily precipitation 109.7 mm (4.3 in)

Wettest Day of Each Month

Sep: 109.7 mm (4.3 in)

The wettest day on record for each calendar month at Union City Filtration Plt. The most was 109.7 mm (4.3 in) on 9 September 2004.

Record daily precipitation for each month at Union City Filtration Plt
Month	Record daily precipitation (mm)	Date
Jan	46.5 mm (1.8 in)	8 January 1998
Feb	42.4 mm (1.7 in)	27 February 1997
Mar	46.2 mm (1.8 in)	31 March 1987
Apr	46.2 mm (1.8 in)	29 April 1981
May	57.2 mm (2.3 in)	22 May 2022
Jun	73.4 mm (2.9 in)	14 June 1994
Jul	106.4 mm (4.2 in)	29 July 2002
Aug	109.5 mm (4.3 in)	14 August 1994
Sep	109.7 mm (4.3 in)	9 September 2004
Oct	92.7 mm (3.6 in)	16 October 1954
Nov	72.4 mm (2.9 in)	3 November 1999
Dec	38.9 mm (1.5 in)	31 December 1992

Period of Record Coverage

2012 to 2026

15 years of record at Union City Filtration Plt, 2012 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2012, 2026.

Days with data per year at Union City Filtration Plt
Year	Days with data	Share of year	Complete
2012	61	17%	No
2013	362	99%	Yes
2014	365	100%	Yes
2015	364	100%	Yes
2016	365	100%	Yes
2017	335	92%	Yes
2018	360	99%	Yes
2019	361	99%	Yes
2020	361	99%	Yes
2021	363	99%	Yes
2022	362	99%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	365	100%	Yes
2026	243	67%	No

Latest Records

Latest records at Union City Filtration Plt
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 September 2026	Union City Filtration Plt, US	daily rain (Provisional)	60.2 mm (2.4 in)	24.1 mm (0.9 in)	56 years	45 of 100 (Notable)
10 July 2026	Union City Filtration Plt, US	daily rain	44.2 mm (1.7 in)	3.8 mm (0.15 in)	60 years	28 of 100 (Routine)
6 May 2026	Union City Filtration Plt, US	daily rain	33.8 mm (1.3 in)	14.2 mm (0.6 in)	23 years	29 of 100 (Routine)
12 March 2026	Union City Filtration Plt, US	daily rain	34.3 mm (1.4 in)	14.7 mm (0.6 in)	76 years	51 of 100 (Notable)
24 February 2026	Union City Filtration Plt, US	daily snowfall	13.0 cm (5.1 in)	2.8 cm (1.1 in)	64 years	32 of 100 (Routine)
1 January 2026	Union City Filtration Plt, US	daily snowfall (Tie)	23.6 cm (9.3 in)	tie	27 years	3 of 100 (Routine)
29 December 2025	Union City Filtration Plt, US	daily rain	31.2 mm (1.2 in)	16.2 mm (0.6 in)	66 years	53 of 100 (Notable)
23 October 2025	Union City Filtration Plt, US	daily rain	24.9 mm (1.0 in)	2.0 mm (0.08 in)	20 years	15 of 100 (Routine)
23 September 2025	Union City Filtration Plt, US	daily rain	33.3 mm (1.3 in)	2.3 mm (0.09 in)	36 years	19 of 100 (Routine)
1 August 2025	Union City Filtration Plt, US	daily rain	45.7 mm (1.8 in)	13.4 mm (0.5 in)	26 years	25 of 100 (Routine)
22 April 2025	Union City Filtration Plt, US	daily rain	29.7 mm (1.2 in)	6.8 mm (0.27 in)	60 years	34 of 100 (Routine)
3 April 2025	Union City Filtration Plt, US	daily rain	31.8 mm (1.3 in)	4.9 mm (0.19 in)	48 years	27 of 100 (Routine)
2 January 2025	Union City Filtration Plt, US	daily snowfall	24.9 cm (9.8 in)	1.8 cm (0.7 in)	61 years	28 of 100 (Routine)
6 December 2024	Union City Filtration Plt, US	daily snow depth	40.6 cm (16.0 in)	5.0 cm (2.0 in)	56 years	27 of 100 (Routine)
27 June 2024	Union City Filtration Plt, US	daily rain	61.5 mm (2.4 in)	32.0 mm (1.3 in)	4 years	36 of 100 (Notable)
6 June 2024	Union City Filtration Plt, US	daily rain	50.3 mm (2.0 in)	5.1 mm (0.20 in)	38 years	22 of 100 (Routine)
12 April 2024	Union City Filtration Plt, US	daily rain	24.6 mm (1.0 in)	6.1 mm (0.24 in)	8 years	17 of 100 (Routine)
28 February 2024	Union City Filtration Plt, US	daily rain	25.7 mm (1.0 in)	0.8 mm (0.03 in)	0 years	8 of 100 (Routine)
29 January 2024	Union City Filtration Plt, US	daily rain	14.0 mm (0.6 in)	1.6 mm (0.06 in)	53 years	20 of 100 (Routine)
21 January 2024	Union City Filtration Plt, US	daily snowfall	17.5 cm (6.9 in)	3.5 cm (1.4 in)	64 years	33 of 100 (Routine)

Climate Trend

10 complete years, 2013 to 2025

One stripe for each of 10 complete years at Union City Filtration Plt, 2013 to 2025. Blue stripes are years cooler than the station's own mean of 8.8 C (47.8 F); red stripes are warmer. The coolest year was 2014, at 7.1 C (44.8 F), and the warmest was 2024, at 9.9 C (49.7 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Union City Filtration Plt as warming stripes, 2013 to 2025
Year	Annual mean temperature	Difference from the station mean
2013	8.1 C	-0.64 C
2014	7.1 C	-1.69 C
2015	8.1 C	-0.72 C
2016	9.2 C	+0.44 C
2019	8.7 C	-0.06 C
2020	9.4 C	+0.63 C
2021	9.7 C	+0.92 C
2023	9.4 C	+0.57 C
2024	9.9 C	+1.07 C
2025	8.3 C	-0.53 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

1950 to 2026

Yearly extremes at Union City Filtration Plt: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.3 C (91.9 F)	2022	32.2 C (90.0 F)	15
Coldest night (TNn)	-30.0 C (-22.0 F)	2015	-22.2 C (-8.0 F)	15
Wettest day (Rx1day)	109.7 mm (4.3 in)	2004	52.8 mm (2.1 in)	71
Wettest five days (Rx5day)	159.0 mm (6.3 in)	2002	84.4 mm (3.3 in)	71
Longest dry spell (CDD)	23 days	1963	13 days	71

Hottest day (TXx)

The hottest day of the year at Union City Filtration Plt, 1950 to 2026. The record is 33.3 C (91.9 F) in 2022, marked on the chart; the median year is 32.2 C (90.0 F).

Hottest day (TXx) at Union City Filtration Plt by year
Year	Hottest day (TXx)
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2012	20.6 C (69.1 F)
2013	31.7 C (89.1 F)
2014	30.6 C (87.1 F)
2015	31.7 C (89.1 F)
2016	31.7 C (89.1 F)
2017	31.7 C (89.1 F)
2018	32.8 C (91.0 F)
2019	32.2 C (90.0 F)
2020	32.8 C (91.0 F)
2021	32.8 C (91.0 F)
2022	33.3 C (91.9 F)
2023	31.1 C (88.0 F)
2024	32.8 C (91.0 F)
2025	32.8 C (91.0 F)
2026	33.3 C (91.9 F)

Coldest night (TNn)

The coldest night of the year at Union City Filtration Plt, 1950 to 2026. The record is -30.0 C (-22.0 F) in 2015, marked on the chart; the median year is -22.2 C (-8.0 F).

Coldest night (TNn) at Union City Filtration Plt by year
Year	Coldest night (TNn)
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2012	-10.0 C (14.0 F)
2013	-17.8 C (0.0 F)
2014	-25.6 C (-14.1 F)
2015	-30.0 C (-22.0 F)
2016	-18.3 C (-0.9 F)
2017	-20.0 C (-4.0 F)
2018	-22.2 C (-8.0 F)
2019	-23.3 C (-9.9 F)
2020	-22.2 C (-8.0 F)
2021	-21.1 C (-6.0 F)
2022	-26.1 C (-15.0 F)
2023	-16.7 C (1.9 F)
2024	-18.3 C (-0.9 F)
2025	-26.7 C (-16.1 F)
2026	-29.4 C (-20.9 F)

Wettest day (Rx1day)

The wettest day of the year at Union City Filtration Plt, 1950 to 2026. The record is 109.7 mm (4.3 in) in 2004, marked on the chart; the median year is 52.8 mm (2.1 in).

Wettest day (Rx1day) at Union City Filtration Plt by year
Year	Wettest day (Rx1day)
1950	68.6 mm (2.7 in)
1951	38.9 mm (1.5 in)
1952	74.9 mm (2.9 in)
1953	55.1 mm (2.2 in)
1954	92.7 mm (3.6 in)
1955	45.7 mm (1.8 in)
1956	60.2 mm (2.4 in)
1957	64.0 mm (2.5 in)
1958	43.2 mm (1.7 in)
1959	82.8 mm (3.3 in)
1960	34.0 mm (1.3 in)
1961	39.1 mm (1.5 in)
1962	45.7 mm (1.8 in)
1963	51.6 mm (2.0 in)
1964	62.0 mm (2.4 in)
1965	40.4 mm (1.6 in)
1966	81.8 mm (3.2 in)
1967	92.5 mm (3.6 in)
1968	50.3 mm (2.0 in)
1969	42.9 mm (1.7 in)
1970	35.1 mm (1.4 in)
1971	26.9 mm (1.1 in)
1972	61.7 mm (2.4 in)
1973	34.0 mm (1.3 in)
1974	55.1 mm (2.2 in)
1975	36.8 mm (1.4 in)
1976	31.2 mm (1.2 in)
1977	50.3 mm (2.0 in)
1978	32.0 mm (1.3 in)
1979	70.6 mm (2.8 in)
1980	52.8 mm (2.1 in)
1981	46.2 mm (1.8 in)
1982	55.1 mm (2.2 in)
1983	68.6 mm (2.7 in)
1984	58.2 mm (2.3 in)
1985	51.6 mm (2.0 in)
1986	45.2 mm (1.8 in)
1987	63.8 mm (2.5 in)
1988	52.8 mm (2.1 in)
1989	35.1 mm (1.4 in)
1990	94.0 mm (3.7 in)
1991	59.7 mm (2.4 in)
1992	52.3 mm (2.1 in)
1993	36.8 mm (1.4 in)
1994	109.5 mm (4.3 in)
1995	45.2 mm (1.8 in)
1996	71.6 mm (2.8 in)
1997	42.4 mm (1.7 in)
1998	53.8 mm (2.1 in)
1999	72.4 mm (2.9 in)
2000	53.8 mm (2.1 in)
2001	38.6 mm (1.5 in)
2002	106.4 mm (4.2 in)
2003	39.1 mm (1.5 in)
2004	109.7 mm (4.3 in)
2005	62.5 mm (2.5 in)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2012	21.3 mm (0.8 in)
2013	59.4 mm (2.3 in)
2014	42.2 mm (1.7 in)
2015	37.1 mm (1.5 in)
2016	54.1 mm (2.1 in)
2017	45.7 mm (1.8 in)
2018	52.8 mm (2.1 in)
2019	54.9 mm (2.2 in)
2020	46.0 mm (1.8 in)
2021	43.2 mm (1.7 in)
2022	71.1 mm (2.8 in)
2023	33.0 mm (1.3 in)
2024	61.5 mm (2.4 in)
2025	45.7 mm (1.8 in)
2026	60.2 mm (2.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Union City Filtration Plt, 1950 to 2026. The record is 159.0 mm (6.3 in) in 2002, marked on the chart; the median year is 84.4 mm (3.3 in).

Wettest five days (Rx5day) at Union City Filtration Plt by year
Year	Wettest five days (Rx5day)
1950	130.3 mm (5.1 in)
1951	80.5 mm (3.2 in)
1952	89.9 mm (3.5 in)
1953	110.9 mm (4.4 in)
1954	138.1 mm (5.4 in)
1955	61.5 mm (2.4 in)
1956	93.0 mm (3.7 in)
1957	77.4 mm (3.0 in)
1958	63.5 mm (2.5 in)
1959	87.4 mm (3.4 in)
1960	76.8 mm (3.0 in)
1961	75.7 mm (3.0 in)
1962	124.9 mm (4.9 in)
1963	64.7 mm (2.5 in)
1964	85.1 mm (3.4 in)
1965	63.5 mm (2.5 in)
1966	90.7 mm (3.6 in)
1967	100.6 mm (4.0 in)
1968	60.1 mm (2.4 in)
1969	72.4 mm (2.9 in)
1970	64.8 mm (2.6 in)
1971	54.8 mm (2.2 in)
1972	126.0 mm (5.0 in)
1973	78.2 mm (3.1 in)
1974	80.1 mm (3.2 in)
1975	81.3 mm (3.2 in)
1976	66.7 mm (2.6 in)
1977	91.3 mm (3.6 in)
1978	65.0 mm (2.6 in)
1979	123.7 mm (4.9 in)
1980	68.8 mm (2.7 in)
1981	65.8 mm (2.6 in)
1982	76.4 mm (3.0 in)
1983	86.1 mm (3.4 in)
1984	120.1 mm (4.7 in)
1985	97.2 mm (3.8 in)
1986	88.1 mm (3.5 in)
1987	99.6 mm (3.9 in)
1988	85.9 mm (3.4 in)
1989	78.2 mm (3.1 in)
1990	130.5 mm (5.1 in)
1991	122.1 mm (4.8 in)
1992	92.6 mm (3.6 in)
1993	84.4 mm (3.3 in)
1994	116.1 mm (4.6 in)
1995	79.5 mm (3.1 in)
1996	100.4 mm (4.0 in)
1997	67.3 mm (2.6 in)
1998	78.3 mm (3.1 in)
1999	92.0 mm (3.6 in)
2000	104.4 mm (4.1 in)
2001	48.1 mm (1.9 in)
2002	159.0 mm (6.3 in)
2003	98.3 mm (3.9 in)
2004	118.9 mm (4.7 in)
2005	71.6 mm (2.8 in)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2012	47.8 mm (1.9 in)
2013	95.5 mm (3.8 in)
2014	78.3 mm (3.1 in)
2015	84.6 mm (3.3 in)
2016	95.0 mm (3.7 in)
2017	75.1 mm (3.0 in)
2018	75.0 mm (3.0 in)
2019	72.2 mm (2.8 in)
2020	77.5 mm (3.1 in)
2021	73.2 mm (2.9 in)
2022	134.3 mm (5.3 in)
2023	55.2 mm (2.2 in)
2024	100.1 mm (3.9 in)
2025	63.3 mm (2.5 in)
2026	119.7 mm (4.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Union City Filtration Plt, 1950 to 2026. The record is 23 days in 1963, marked on the chart; the median year is 13 days.

Longest dry spell (CDD) at Union City Filtration Plt by year
Year	Longest dry spell (CDD)
1950	12 days
1951	15 days
1952	11 days
1953	16 days
1954	14 days
1955	11 days
1956	14 days
1957	22 days
1958	13 days
1959	13 days
1960	11 days
1961	17 days
1962	11 days
1963	23 days
1964	23 days
1965	15 days
1966	19 days
1967	18 days
1968	11 days
1969	13 days
1970	12 days
1971	12 days
1972	13 days
1973	11 days
1974	9 days
1975	9 days
1976	12 days
1977	15 days
1978	18 days
1979	14 days
1980	15 days
1981	15 days
1982	16 days
1983	14 days
1984	12 days
1985	13 days
1986	14 days
1987	10 days
1988	17 days
1989	13 days
1990	10 days
1991	18 days
1992	11 days
1993	10 days
1994	12 days
1995	23 days
1996	15 days
1997	10 days
1998	19 days
1999	18 days
2000	11 days
2001	11 days
2002	12 days
2003	12 days
2004	14 days
2005	15 days
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2012	10 days
2013	13 days
2014	8 days
2015	14 days
2016	13 days
2017	14 days
2018	11 days
2019	10 days
2020	14 days
2021	16 days
2022	15 days
2023	21 days
2024	15 days
2025	13 days
2026	13 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.

Rainfall Return Levels

66 years, 1951 to 2025

A day with at least 51.0 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 125.4 mm (4.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Union City Filtration Plt: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	51.0 mm (2.0 in)
5 years	67.9 mm (2.7 in)
10 years	80.2 mm (3.2 in)
25 years	97.1 mm (3.8 in)
50 years	110.8 mm (4.4 in)
100 years	125.4 mm (4.9 in)	Longer than the 66 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, 66 years of values from 1951 to 2025.

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: 109.7 mm (4.3 in) in 2004; 109.5 mm (4.3 in) in 1994; 106.4 mm (4.2 in) in 2002.

Download the Data

Data for Union City Filtration Plt standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Union City Filtration Plt 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.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).