Antioch Pumping Plt #3 Weather Records (USC00040232)

Record envelope, standing records and threshold days for Antioch Pumping Plt #3 (USC00040232), California, United States, with 67 years of record.

Key Facts for Antioch Pumping Plt #3

Antioch Pumping Plt #3 (USC00040232) is a weather station in California, United States at 37.98 latitude and -121.75 longitude, 18 m (60 ft) above sea level.
The station reports from 1955 to 2021, 67 years of record.
1,464 records set at Antioch Pumping Plt #3 still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Antioch Pumping Plt #3 tied a daily record high minimum temperature of 18.3 C (64.9 F) on 30 July 2021.

About the Station

Location: California, United States, 37.98 latitude, -121.75 longitude.
Elevation: 18 m (60 ft).
Period of record: 1955 to 2021, 67 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 Antioch Pumping Plt #3. 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 Antioch Pumping Plt #3, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	26.1 C (79.0 F)	-6.7 C (19.9 F)	n/a	n/a
Feb	26.1 C (79.0 F)	-3.9 C (25.0 F)	n/a	n/a
Mar	31.1 C (88.0 F)	-2.8 C (27.0 F)	n/a	n/a
Apr	34.4 C (93.9 F)	-2.2 C (28.0 F)	n/a	n/a
May	40.0 C (104.0 F)	0.0 C (32.0 F)	n/a	n/a
Jun	47.2 C (117.0 F)	1.7 C (35.1 F)	n/a	n/a
Jul	43.3 C (109.9 F)	5.0 C (41.0 F)	n/a	n/a
Aug	42.8 C (109.0 F)	4.4 C (39.9 F)	n/a	n/a
Sep	43.3 C (109.9 F)	5.0 C (41.0 F)	n/a	n/a
Oct	38.9 C (102.0 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	30.6 C (87.1 F)	-4.4 C (24.1 F)	n/a	n/a
Dec	23.9 C (75.0 F)	-7.8 C (18.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Antioch Pumping Plt #3 still stand. 1955 holds the most, with 51.

Standing records at Antioch Pumping Plt #3 by the year they were set
Year set	Standing records
1955	51
1956	26
1957	35
1958	23
1959	35
1960	24
1961	39
1962	34
1963	51
1964	43
1965	33
1966	24
1967	33
1968	22
1969	21
1970	21
1971	33
1972	43
1973	17
1974	17
1975	31
1976	30
1977	21
1978	14
1979	14
1980	13
1981	12
1982	27
1983	17
1984	14
1985	25
1986	17
1987	13
1988	21
1989	31
1990	28
1991	17
1992	12
1993	10
1994	5
1995	14
1996	26
1997	20
1998	14
1999	16
2000	28
2001	1
2002	6
2003	10
2004	8
2005	9
2006	16
2007	12
2008	14
2009	10
2010	21
2011	32
2012	31
2013	20
2014	21
2015	32
2016	13
2017	7
2018	6
2019	26
2020	41
2021	13

All-Time Record Progression

1 new records

1 all-time records were set at Antioch Pumping Plt #3 between 14 June 2000 and 14 June 2000. Each dot is a new record.

Wettest Day of Each Month

Oct: 77.0 mm (3.0 in)

The wettest day on record for each calendar month at Antioch Pumping Plt #3. The most was 77.0 mm (3.0 in) on 13 October 1962.

Record daily precipitation for each month at Antioch Pumping Plt #3
Month	Record daily precipitation (mm)	Date
Jan	71.1 mm (2.8 in)	5 January 1982
Feb	59.2 mm (2.3 in)	3 February 1998
Mar	35.6 mm (1.4 in)	3 March 2009
Apr	37.3 mm (1.5 in)	3 April 1958
May	27.9 mm (1.1 in)	16 May 1996
Jun	19.8 mm (0.8 in)	9 June 1964
Jul	10.2 mm (0.4 in)	2 July 1980
Aug	11.4 mm (0.4 in)	22 August 1968
Sep	31.8 mm (1.3 in)	19 September 1959
Oct	77.0 mm (3.0 in)	13 October 1962
Nov	59.4 mm (2.3 in)	17 November 1996
Dec	71.4 mm (2.8 in)	11 December 2014

Period of Record Coverage

1955 to 2021

67 years of record at Antioch Pumping Plt #3, 1955 to 2021. 14 years have data for under 90 percent of days and are left out of rankings: 1955, 1985, 2000, 2001, 2002, 2003, 2004, 2009 and others.

Days with data per year at Antioch Pumping Plt #3
Year	Days with data	Share of year	Complete
1955	306	84%	No
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	364	100%	Yes
1964	364	99%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	344	94%	Yes
1973	334	92%	Yes
1974	365	100%	Yes
1975	352	96%	Yes
1976	366	100%	Yes
1977	360	99%	Yes
1978	357	98%	Yes
1979	364	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	362	99%	Yes
1983	362	99%	Yes
1984	362	99%	Yes
1985	296	81%	No
1986	355	97%	Yes
1987	359	98%	Yes
1988	352	96%	Yes
1989	354	97%	Yes
1990	360	99%	Yes
1991	334	92%	Yes
1992	365	100%	Yes
1993	345	95%	Yes
1994	354	97%	Yes
1995	344	94%	Yes
1996	364	99%	Yes
1997	365	100%	Yes
1998	344	94%	Yes
1999	329	90%	Yes
2000	267	73%	No
2001	78	21%	No
2002	294	81%	No
2003	299	82%	No
2004	300	82%	No
2005	347	95%	Yes
2006	360	99%	Yes
2007	351	96%	Yes
2008	359	98%	Yes
2009	241	66%	No
2010	300	82%	No
2011	319	87%	No
2012	261	71%	No
2013	364	100%	Yes
2014	365	100%	Yes
2015	364	100%	Yes
2016	338	92%	Yes
2017	136	37%	No
2018	134	37%	No
2019	356	98%	Yes
2020	363	99%	Yes
2021	243	67%	No

Latest Records

Latest records at Antioch Pumping Plt #3
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 July 2021	Antioch Pumping Plt #3, US	daily high min (Tie)	18.3 C (64.9 F)	tie	32 years	3 of 100 (Routine)
10 July 2021	Antioch Pumping Plt #3, US	daily high max	42.2 C (108.0 F)	1.1 C (2.0 F)	62 years	26 of 100 (Routine)
18 June 2021	Antioch Pumping Plt #3, US	daily high min	20.6 C (69.1 F)	0.6 C (1.1 F)	40 years	19 of 100 (Routine)
31 May 2021	Antioch Pumping Plt #3, US	daily high max	37.8 C (100.0 F)	1.7 C (3.1 F)	36 years	20 of 100 (Routine)
9 May 2021	Antioch Pumping Plt #3, US	daily high min	18.3 C (64.9 F)	2.2 C (4.0 F)	40 years	24 of 100 (Routine)
18 April 2021	Antioch Pumping Plt #3, US	daily high min	13.9 C (57.0 F)	0.6 C (1.1 F)	44 years	20 of 100 (Routine)
18 April 2021	Antioch Pumping Plt #3, US	daily high max	31.7 C (89.1 F)	0.6 C (1.1 F)	4 years	8 of 100 (Routine)
10 March 2021	Antioch Pumping Plt #3, US	daily low max	12.2 C (54.0 F)	2.2 C (4.0 F)	56 years	27 of 100 (Routine)
23 February 2021	Antioch Pumping Plt #3, US	daily high max	25.0 C (77.0 F)	0.6 C (1.1 F)	36 years	17 of 100 (Routine)
9 February 2021	Antioch Pumping Plt #3, US	daily high min	13.9 C (57.0 F)	0.6 C (1.1 F)	7 years	9 of 100 (Routine)
18 January 2021	Antioch Pumping Plt #3, US	daily high max	23.9 C (75.0 F)	2.8 C (5.0 F)	35 years	23 of 100 (Routine)
18 January 2021	Antioch Pumping Plt #3, US	daily high min	13.3 C (55.9 F)	1.6 C (2.9 F)	22 years	16 of 100 (Routine)
17 January 2021	Antioch Pumping Plt #3, US	daily high max	23.3 C (73.9 F)	3.9 C (7.0 F)	51 years	31 of 100 (Routine)
16 January 2021	Antioch Pumping Plt #3, US	daily high max	22.8 C (73.0 F)	2.8 C (5.0 F)	7 years	15 of 100 (Routine)
8 December 2020	Antioch Pumping Plt #3, US	daily high max (Tie)	20.0 C (68.0 F)	tie	9 years	2 of 100 (Routine)
7 December 2020	Antioch Pumping Plt #3, US	daily high max	22.2 C (72.0 F)	1.1 C (2.0 F)	31 years	17 of 100 (Routine)
7 December 2020	Antioch Pumping Plt #3, US	daily high min	12.8 C (55.0 F)	0.6 C (1.1 F)	25 years	14 of 100 (Routine)
5 November 2020	Antioch Pumping Plt #3, US	daily high max	28.3 C (82.9 F)	1.6 C (2.9 F)	44 years	22 of 100 (Routine)
22 October 2020	Antioch Pumping Plt #3, US	daily high min (Tie)	15.6 C (60.1 F)	tie	1 year	1 of 100 (Routine)
21 October 2020	Antioch Pumping Plt #3, US	daily high min (Tie)	16.7 C (62.1 F)	tie	29 years	3 of 100 (Routine)

Climate Trend

44 complete years, 1956 to 2020

One stripe for each of 44 complete years at Antioch Pumping Plt #3, 1956 to 2020. Blue stripes are years cooler than the station's own mean of 16.1 C (60.9 F); red stripes are warmer. The coolest year was 1971, at 14.3 C (57.7 F), and the warmest was 2014, at 18.2 C (64.7 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at Antioch Pumping Plt #3 as warming stripes, 1956 to 2020
Year	Annual mean temperature	Difference from the station mean
1956	15.2 C	-0.84 C
1957	15.5 C	-0.59 C
1958	15.9 C	-0.16 C
1959	16.0 C	-0.12 C
1960	15.9 C	-0.14 C
1961	15.7 C	-0.39 C
1962	15.0 C	-1.03 C
1963	14.8 C	-1.30 C
1964	15.2 C	-0.83 C
1965	14.9 C	-1.15 C
1966	15.6 C	-0.43 C
1967	15.1 C	-0.96 C
1968	15.5 C	-0.62 C
1969	15.4 C	-0.72 C
1970	15.6 C	-0.45 C
1971	14.3 C	-1.79 C
1974	15.5 C	-0.61 C
1975	14.7 C	-1.42 C
1976	15.9 C	-0.16 C
1977	16.0 C	-0.10 C
1978	15.9 C	-0.19 C
1979	15.8 C	-0.26 C
1980	15.5 C	-0.58 C
1981	16.5 C	+0.42 C
1982	14.8 C	-1.28 C
1983	15.8 C	-0.28 C
1984	16.6 C	+0.51 C
1986	16.6 C	+0.52 C
1987	16.7 C	+0.59 C
1988	16.9 C	+0.79 C
1989	16.1 C	+0.01 C
1990	16.7 C	+0.64 C
1992	17.1 C	+0.98 C
1994	16.0 C	-0.11 C
1996	17.1 C	+1.03 C
1997	17.3 C	+1.20 C
2006	16.5 C	+0.38 C
2007	16.6 C	+0.55 C
2008	16.8 C	+0.70 C
2013	17.2 C	+1.11 C
2014	18.2 C	+2.10 C
2015	17.8 C	+1.70 C
2019	17.3 C	+1.18 C
2020	18.1 C	+2.07 C

The annual mean temperature here has risen by 0.4 C (0.3 to 0.5) per decade over 1956 to 2020. In Fahrenheit: 0.7 F (0.6 to 0.9) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Antioch Pumping Plt #3
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.4 C (0.3 to 0.5) per decade	0.7 F (0.6 to 0.9) per decade	1956 to 2020	44	Rise
Mean daily maximum	0.16 C (0.05 to 0.27) per decade	0.3 F (0.1 to 0.5) per decade	1956 to 2020	44	Rise
Mean daily minimum	0.7 C (0.6 to 0.8) per decade	1.2 F (1.0 to 1.4) per decade	1956 to 2020	44	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

1955 to 2021

Yearly extremes at Antioch Pumping Plt #3: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.2 C (117.0 F)	1961	40.6 C (105.1 F)	67
Coldest night (TNn)	-7.8 C (18.0 F)	1972	-3.3 C (26.1 F)	67
Wettest day (Rx1day)	77.0 mm (3.0 in)	1962	31.8 mm (1.3 in)	67
Wettest five days (Rx5day)	145.6 mm (5.7 in)	2005	62.3 mm (2.5 in)	67
Longest dry spell (CDD)	220 days	2002	122 days	67

Hottest day (TXx)

The hottest day of the year at Antioch Pumping Plt #3, 1955 to 2021. The record is 47.2 C (117.0 F) in 1961, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at Antioch Pumping Plt #3 by year
Year	Hottest day (TXx)
1955	42.8 C (109.0 F)
1956	40.6 C (105.1 F)
1957	42.2 C (108.0 F)
1958	39.4 C (102.9 F)
1959	43.3 C (109.9 F)
1960	42.8 C (109.0 F)
1961	47.2 C (117.0 F)
1962	40.0 C (104.0 F)
1963	43.3 C (109.9 F)
1964	39.4 C (102.9 F)
1965	37.2 C (99.0 F)
1966	41.1 C (106.0 F)
1967	40.0 C (104.0 F)
1968	38.9 C (102.0 F)
1969	38.9 C (102.0 F)
1970	39.4 C (102.9 F)
1971	40.0 C (104.0 F)
1972	43.3 C (109.9 F)
1973	41.1 C (106.0 F)
1974	39.4 C (102.9 F)
1975	42.2 C (108.0 F)
1976	40.6 C (105.1 F)
1977	42.2 C (108.0 F)
1978	42.8 C (109.0 F)
1979	40.6 C (105.1 F)
1980	39.4 C (102.9 F)
1981	42.8 C (109.0 F)
1982	37.8 C (100.0 F)
1983	40.6 C (105.1 F)
1984	41.7 C (107.1 F)
1985	38.3 C (100.9 F)
1986	37.8 C (100.0 F)
1987	39.4 C (102.9 F)
1988	42.8 C (109.0 F)
1989	41.7 C (107.1 F)
1990	41.7 C (107.1 F)
1991	42.8 C (109.0 F)
1992	40.0 C (104.0 F)
1993	40.6 C (105.1 F)
1994	38.9 C (102.0 F)
1995	40.6 C (105.1 F)
1996	41.1 C (106.0 F)
1997	40.0 C (104.0 F)
1998	42.8 C (109.0 F)
1999	41.1 C (106.0 F)
2000	39.4 C (102.9 F)
2001	37.2 C (99.0 F)
2002	41.1 C (106.0 F)
2003	40.0 C (104.0 F)
2004	38.9 C (102.0 F)
2005	38.9 C (102.0 F)
2006	43.3 C (109.9 F)
2007	41.1 C (106.0 F)
2008	42.8 C (109.0 F)
2009	40.0 C (104.0 F)
2010	40.0 C (104.0 F)
2011	43.9 C (111.0 F)
2012	40.6 C (105.1 F)
2013	40.6 C (105.1 F)
2014	39.4 C (102.9 F)
2015	41.7 C (107.1 F)
2016	40.6 C (105.1 F)
2017	33.3 C (91.9 F)
2018	37.8 C (100.0 F)
2019	39.4 C (102.9 F)
2020	43.3 C (109.9 F)
2021	42.2 C (108.0 F)

Coldest night (TNn)

The coldest night of the year at Antioch Pumping Plt #3, 1955 to 2021. The record is -7.8 C (18.0 F) in 1972, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at Antioch Pumping Plt #3 by year
Year	Coldest night (TNn)
1955	-0.6 C (30.9 F)
1956	-4.4 C (24.1 F)
1957	-5.0 C (23.0 F)
1958	-4.4 C (24.1 F)
1959	-4.4 C (24.1 F)
1960	-5.0 C (23.0 F)
1961	-5.6 C (21.9 F)
1962	-6.7 C (19.9 F)
1963	-6.1 C (21.0 F)
1964	-3.3 C (26.1 F)
1965	-6.1 C (21.0 F)
1966	-4.4 C (24.1 F)
1967	-5.6 C (21.9 F)
1968	-5.6 C (21.9 F)
1969	-4.4 C (24.1 F)
1970	-3.9 C (25.0 F)
1971	-3.9 C (25.0 F)
1972	-7.8 C (18.0 F)
1973	0.6 C (33.1 F)
1974	-3.3 C (26.1 F)
1975	-5.0 C (23.0 F)
1976	-5.0 C (23.0 F)
1977	-2.2 C (28.0 F)
1978	-6.1 C (21.0 F)
1979	-6.1 C (21.0 F)
1980	-4.4 C (24.1 F)
1981	-1.1 C (30.0 F)
1982	-3.9 C (25.0 F)
1983	-1.1 C (30.0 F)
1984	-3.9 C (25.0 F)
1985	-4.4 C (24.1 F)
1986	-0.6 C (30.9 F)
1987	-3.3 C (26.1 F)
1988	-1.7 C (28.9 F)
1989	-3.9 C (25.0 F)
1990	-6.7 C (19.9 F)
1991	-2.2 C (28.0 F)
1992	-2.2 C (28.0 F)
1993	-3.3 C (26.1 F)
1994	-2.2 C (28.0 F)
1995	2.2 C (36.0 F)
1996	0.6 C (33.1 F)
1997	-3.9 C (25.0 F)
1998	-5.6 C (21.9 F)
1999	-1.7 C (28.9 F)
2000	0.0 C (32.0 F)
2001	2.2 C (36.0 F)
2002	-1.1 C (30.0 F)
2003	0.0 C (32.0 F)
2004	-1.7 C (28.9 F)
2005	-1.1 C (30.0 F)
2006	-1.1 C (30.0 F)
2007	-5.0 C (23.0 F)
2008	-2.2 C (28.0 F)
2009	-2.2 C (28.0 F)
2010	-4.4 C (24.1 F)
2011	-2.8 C (27.0 F)
2012	-2.2 C (28.0 F)
2013	-2.2 C (28.0 F)
2014	1.7 C (35.1 F)
2015	-2.8 C (27.0 F)
2016	-0.6 C (30.9 F)
2017	-0.6 C (30.9 F)
2018	2.2 C (36.0 F)
2019	-0.6 C (30.9 F)
2020	-1.1 C (30.0 F)
2021	1.1 C (34.0 F)

Wettest day (Rx1day)

The wettest day of the year at Antioch Pumping Plt #3, 1955 to 2021. The record is 77.0 mm (3.0 in) in 1962, marked on the chart; the median year is 31.8 mm (1.3 in).

Wettest day (Rx1day) at Antioch Pumping Plt #3 by year
Year	Wettest day (Rx1day)
1955	41.7 mm (1.6 in)
1956	20.6 mm (0.8 in)
1957	22.4 mm (0.9 in)
1958	47.5 mm (1.9 in)
1959	31.8 mm (1.3 in)
1960	25.4 mm (1.0 in)
1961	33.8 mm (1.3 in)
1962	77.0 mm (3.0 in)
1963	28.4 mm (1.1 in)
1964	50.8 mm (2.0 in)
1965	22.1 mm (0.9 in)
1966	31.8 mm (1.3 in)
1967	38.1 mm (1.5 in)
1968	38.6 mm (1.5 in)
1969	45.5 mm (1.8 in)
1970	50.8 mm (2.0 in)
1971	23.6 mm (0.9 in)
1972	31.0 mm (1.2 in)
1973	37.1 mm (1.5 in)
1974	21.8 mm (0.9 in)
1975	25.4 mm (1.0 in)
1976	21.6 mm (0.9 in)
1977	27.2 mm (1.1 in)
1978	25.1 mm (1.0 in)
1979	37.6 mm (1.5 in)
1980	25.7 mm (1.0 in)
1981	51.1 mm (2.0 in)
1982	71.1 mm (2.8 in)
1983	36.6 mm (1.4 in)
1984	26.9 mm (1.1 in)
1985	26.2 mm (1.0 in)
1986	47.2 mm (1.9 in)
1987	47.8 mm (1.9 in)
1988	15.0 mm (0.6 in)
1989	23.1 mm (0.9 in)
1990	24.9 mm (1.0 in)
1991	32.8 mm (1.3 in)
1992	25.1 mm (1.0 in)
1993	52.8 mm (2.1 in)
1994	50.8 mm (2.0 in)
1995	55.4 mm (2.2 in)
1996	59.4 mm (2.3 in)
1997	40.6 mm (1.6 in)
1998	59.2 mm (2.3 in)
1999	16.5 mm (0.6 in)
2000	41.9 mm (1.6 in)
2001	0.0 mm (0.00 in)
2002	44.7 mm (1.8 in)
2003	21.3 mm (0.8 in)
2004	44.5 mm (1.8 in)
2005	55.9 mm (2.2 in)
2006	25.9 mm (1.0 in)
2007	47.8 mm (1.9 in)
2008	45.7 mm (1.8 in)
2009	35.6 mm (1.4 in)
2010	0.0 mm (0.00 in)
2011	0.0 mm (0.00 in)
2012	48.3 mm (1.9 in)
2013	16.5 mm (0.6 in)
2014	71.4 mm (2.8 in)
2015	22.4 mm (0.9 in)
2016	26.4 mm (1.0 in)
2017	42.4 mm (1.7 in)
2018	22.9 mm (0.9 in)
2019	29.0 mm (1.1 in)
2020	10.9 mm (0.4 in)
2021	18.3 mm (0.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Antioch Pumping Plt #3, 1955 to 2021. The record is 145.6 mm (5.7 in) in 2005, marked on the chart; the median year is 62.3 mm (2.5 in).

Wettest five days (Rx5day) at Antioch Pumping Plt #3 by year
Year	Wettest five days (Rx5day)
1955	87.2 mm (3.4 in)
1956	38.9 mm (1.5 in)
1957	58.5 mm (2.3 in)
1958	76.2 mm (3.0 in)
1959	54.5 mm (2.1 in)
1960	38.1 mm (1.5 in)
1961	50.1 mm (2.0 in)
1962	120.5 mm (4.7 in)
1963	71.6 mm (2.8 in)
1964	67.6 mm (2.7 in)
1965	47.0 mm (1.9 in)
1966	51.6 mm (2.0 in)
1967	95.3 mm (3.8 in)
1968	65.8 mm (2.6 in)
1969	58.7 mm (2.3 in)
1970	103.0 mm (4.1 in)
1971	45.2 mm (1.8 in)
1972	74.2 mm (2.9 in)
1973	44.2 mm (1.7 in)
1974	29.3 mm (1.2 in)
1975	42.4 mm (1.7 in)
1976	34.1 mm (1.3 in)
1977	36.5 mm (1.4 in)
1978	81.7 mm (3.2 in)
1979	74.9 mm (2.9 in)
1980	86.2 mm (3.4 in)
1981	83.6 mm (3.3 in)
1982	106.2 mm (4.2 in)
1983	71.9 mm (2.8 in)
1984	40.9 mm (1.6 in)
1985	38.9 mm (1.5 in)
1986	111.5 mm (4.4 in)
1987	56.1 mm (2.2 in)
1988	34.3 mm (1.4 in)
1989	34.9 mm (1.4 in)
1990	43.0 mm (1.7 in)
1991	63.1 mm (2.5 in)
1992	64.2 mm (2.5 in)
1993	76.2 mm (3.0 in)
1994	63.0 mm (2.5 in)
1995	108.9 mm (4.3 in)
1996	62.3 mm (2.5 in)
1997	89.9 mm (3.5 in)
1998	87.6 mm (3.4 in)
1999	35.3 mm (1.4 in)
2000	85.6 mm (3.4 in)
2001	0.0 mm (0.00 in)
2002	80.0 mm (3.1 in)
2003	30.7 mm (1.2 in)
2004	98.3 mm (3.9 in)
2005	145.6 mm (5.7 in)
2006	128.6 mm (5.1 in)
2007	47.8 mm (1.9 in)
2008	74.9 mm (2.9 in)
2009	104.0 mm (4.1 in)
2010	0.0 mm (0.00 in)
2011	0.0 mm (0.00 in)
2012	64.0 mm (2.5 in)
2013	32.5 mm (1.3 in)
2014	99.6 mm (3.9 in)
2015	46.6 mm (1.8 in)
2016	59.2 mm (2.3 in)
2017	70.9 mm (2.8 in)
2018	25.9 mm (1.0 in)
2019	54.1 mm (2.1 in)
2020	27.5 mm (1.1 in)
2021	27.5 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Antioch Pumping Plt #3, 1955 to 2021. The record is 220 days in 2002, marked on the chart; the median year is 122 days.

Longest dry spell (CDD) at Antioch Pumping Plt #3 by year
Year	Longest dry spell (CDD)
1955	155 days
1956	132 days
1957	141 days
1958	126 days
1959	144 days
1960	162 days
1961	107 days
1962	138 days
1963	124 days
1964	82 days
1965	82 days
1966	53 days
1967	121 days
1968	99 days
1969	173 days
1970	87 days
1971	186 days
1972	107 days
1973	161 days
1974	111 days
1975	97 days
1976	65 days
1977	113 days
1978	133 days
1979	85 days
1980	141 days
1981	157 days
1982	107 days
1983	110 days
1984	152 days
1985	66 days
1986	85 days
1987	62 days
1988	120 days
1989	61 days
1990	152 days
1991	117 days
1992	112 days
1993	131 days
1994	140 days
1995	177 days
1996	159 days
1997	126 days
1998	93 days
1999	163 days
2000	38 days
2001	37 days
2002	220 days
2003	76 days
2004	140 days
2005	128 days
2006	135 days
2007	188 days
2008	213 days
2009	153 days
2010	122 days
2011	92 days
2012	31 days
2013	88 days
2014	152 days
2015	137 days
2016	159 days
2017	53 days
2018	37 days
2019	78 days
2020	116 days
2021	166 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

40 years with a frost

Across 40 years with a frost, the median last spring frost at Antioch Pumping Plt #3 falls on 12 February and the median first autumn frost on 27 November, which leaves a median of 288 days between them.

Fitted over all years, the growing season changes by +16.1 days per decade at this station.

Frost dates and growing season at Antioch Pumping Plt #3
Measure	Median, all years	Earliest period	Recent period (1966 to 2020)	Recent against earliest	Fitted trend
Last spring frost	12 February	n/a	5 February	n/a	-11.8 days per decade
First autumn frost	27 November	n/a	28 November	n/a	+4.2 days per decade
Growing days	288 days	n/a	295 days	n/a	+16.1 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

52 years, 1956 to 2020

A day with at least 32.6 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 90.8 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Antioch Pumping Plt #3: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.6 mm (1.3 in)
5 years	46.7 mm (1.8 in)
10 years	56.6 mm (2.2 in)
25 years	69.8 mm (2.7 in)
50 years	80.1 mm (3.2 in)
100 years	90.8 mm (3.6 in)	Longer than the 52 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, 52 years of values from 1956 to 2020.

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: 77.0 mm (3.0 in) in 1962; 71.4 mm (2.8 in) in 2014; 71.1 mm (2.8 in) in 1982.

Station Changes

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

Download the Data

Data for Antioch Pumping Plt #3 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Antioch Pumping Plt #3 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).