Bay City Wtr Wks Weather Records (USC00410569)

Record envelope, standing records and threshold days for Bay City Wtr Wks (USC00410569), Texas, United States, with 118 years of record.

Key Facts for Bay City Wtr Wks

Bay City Wtr Wks (USC00410569) is a weather station in Texas, United States at 28.98 latitude and -95.97 longitude, 16 m (52 ft) above sea level.
The station reports from 1909 to 2026, 118 years of record.
1,464 records set at Bay City Wtr Wks still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Bay City Wtr Wks set a daily record high maximum temperature of 37.8 C (100.0 F) on 23 August 2026 (provisional).

Provisional Records

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

About the Station

Location: Texas, United States, 28.98 latitude, -95.97 longitude.
Elevation: 16 m (52 ft).
Period of record: 1909 to 2026, 118 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

8 days at or beyond a record

The band shows the record high and record low for each calendar day at Bay City Wtr Wks. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Bay City Wtr Wks, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	30.0 C (86.0 F)	-11.7 C (10.9 F)	27.2 C (81.0 F)	-6.7 C (19.9 F)
Feb	32.2 C (90.0 F)	-12.2 C (10.0 F)	27.8 C (82.0 F)	-3.3 C (26.1 F)
Mar	32.8 C (91.0 F)	-5.6 C (21.9 F)	28.9 C (84.0 F)	1.1 C (34.0 F)
Apr	34.4 C (93.9 F)	1.1 C (34.0 F)	30.0 C (86.0 F)	9.4 C (48.9 F)
May	36.7 C (98.1 F)	3.9 C (39.0 F)	35.0 C (95.0 F)	10.6 C (51.1 F)
Jun	41.1 C (106.0 F)	13.9 C (57.0 F)	35.0 C (95.0 F)	21.1 C (70.0 F)
Jul	41.7 C (107.1 F)	16.1 C (61.0 F)	37.8 C (100.0 F)	21.7 C (71.1 F)
Aug	41.7 C (107.1 F)	15.0 C (59.0 F)	37.8 C (100.0 F)	20.0 C (68.0 F)
Sep	42.8 C (109.0 F)	7.8 C (46.0 F)	35.0 C (95.0 F)	23.9 C (75.0 F)
Oct	36.1 C (97.0 F)	-1.7 C (28.9 F)	n/a	n/a
Nov	36.1 C (97.0 F)	-4.4 C (24.1 F)	n/a	n/a
Dec	31.1 C (88.0 F)	-13.9 C (7.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Bay City Wtr Wks still stand. 2015 holds the most, with 63.

Standing records at Bay City Wtr Wks by the year they were set
Year set	Standing records
1912	11
1913	20
1914	14
1915	12
1916	22
1917	21
1942	5
1943	9
1944	10
1945	10
1946	7
1947	7
1948	15
1949	15
1950	34
1951	29
1952	10
1953	19
1954	20
1955	20
1956	17
1957	15
1958	13
1959	22
1960	11
1961	21
1962	20
1963	11
1964	16
1965	13
1966	11
1967	21
1968	7
1969	13
1970	14
1971	10
1972	12
1973	21
1974	31
1975	11
1976	22
1977	2
1978	11
1979	18
1980	16
1981	12
1982	12
1983	23
1984	19
1985	8
1986	10
1988	4
1989	42
1990	16
1991	13
1992	15
1993	14
1994	9
1995	9
1996	8
1997	11
1998	55
1999	9
2000	28
2001	13
2002	18
2003	2
2004	27
2005	21
2006	15
2007	11
2008	10
2009	14
2010	9
2011	11
2012	6
2013	23
2014	12
2015	63
2016	8
2017	16
2018	20
2019	20
2020	14
2021	22
2022	12
2023	29
2024	21
2025	23
2026	18

All-Time Record Progression

8 new records

8 all-time records were set at Bay City Wtr Wks between 22 December 1989 and 18 September 2019. Each dot is a new record.

When Bay City Wtr Wks set new all-time records
Date	Kind	Detail
1989-12-22	Record low maximum temperature	Record low maximum temperature -6.7 C (19.9 F)
1989-12-22	Record low minimum temperature	Record low minimum temperature -13.9 C (7.0 F)
1998-07-12	Record high minimum temperature	Record high minimum temperature 30.0 C (86.0 F)
1998-07-17	Record high maximum temperature	Record high maximum temperature 41.7 C (107.1 F)
2000-09-04	Record high maximum temperature	Record high maximum temperature 42.8 C (109.0 F)
2004-06-21	Record high minimum temperature	Record high minimum temperature 30.6 C (87.1 F)
2004-12-24	Record snow depth	Record snow depth 20.3 cm (8.0 in)
2019-09-18	Record daily precipitation	Record daily precipitation 231.6 mm (9.1 in)

Wettest Day of Each Month

Sep: 231.6 mm (9.1 in)

The wettest day on record for each calendar month at Bay City Wtr Wks. The most was 231.6 mm (9.1 in) on 18 September 2019.

Record daily precipitation for each month at Bay City Wtr Wks
Month	Record daily precipitation (mm)	Date
Jan	158.5 mm (6.2 in)	29 January 1989
Feb	98.0 mm (3.9 in)	3 February 1992
Mar	113.0 mm (4.4 in)	21 March 1979
Apr	160.3 mm (6.3 in)	4 April 1991
May	182.4 mm (7.2 in)	7 May 1982
Jun	211.8 mm (8.3 in)	5 June 2019
Jul	140.7 mm (5.5 in)	11 July 2012
Aug	183.6 mm (7.2 in)	30 August 1953
Sep	231.6 mm (9.1 in)	18 September 2019
Oct	171.5 mm (6.8 in)	13 October 2004
Nov	158.2 mm (6.2 in)	4 November 1965
Dec	157.5 mm (6.2 in)	16 December 1995

Period of Record Coverage

1912 to 2026

91 years of record at Bay City Wtr Wks, 1912 to 2026. 22 years have data for under 90 percent of days and are left out of rankings: 1912, 1913, 1914, 1916, 1917, 1942, 1946, 1947 and others.

Days with data per year at Bay City Wtr Wks
Year	Days with data	Share of year	Complete
1912	259	71%	No
1913	308	84%	No
1914	311	85%	No
1915	346	95%	Yes
1916	293	80%	No
1917	200	55%	No
1942	177	48%	No
1943	365	100%	Yes
1944	366	100%	Yes
1945	364	100%	Yes
1946	325	89%	No
1947	193	53%	No
1948	359	98%	Yes
1949	335	92%	Yes
1950	364	100%	Yes
1951	363	99%	Yes
1952	331	90%	Yes
1953	363	99%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	365	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	364	99%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	358	98%	Yes
1965	365	100%	Yes
1966	363	99%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	334	92%	Yes
1972	366	100%	Yes
1973	300	82%	No
1974	363	99%	Yes
1975	310	85%	No
1976	292	80%	No
1977	262	72%	No
1978	359	98%	Yes
1979	361	99%	Yes
1980	335	92%	Yes
1981	365	100%	Yes
1982	333	91%	Yes
1983	365	100%	Yes
1984	365	100%	Yes
1985	330	90%	Yes
1986	352	96%	Yes
1987	34	9%	No
1988	177	48%	No
1989	363	99%	Yes
1990	360	99%	Yes
1991	362	99%	Yes
1992	363	99%	Yes
1993	362	99%	Yes
1994	362	99%	Yes
1995	363	99%	Yes
1996	261	71%	No
1997	331	91%	Yes
1998	315	86%	No
1999	364	100%	Yes
2000	361	99%	Yes
2001	361	99%	Yes
2002	362	99%	Yes
2003	360	99%	Yes
2004	359	98%	Yes
2005	328	90%	No
2006	352	96%	Yes
2007	333	91%	Yes
2008	363	99%	Yes
2009	361	99%	Yes
2010	351	96%	Yes
2011	354	97%	Yes
2012	357	98%	Yes
2013	359	98%	Yes
2014	280	77%	No
2015	355	97%	Yes
2016	298	81%	No
2017	362	99%	Yes
2018	334	92%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	288	79%	No
2023	274	75%	No
2024	366	100%	Yes
2025	330	90%	Yes
2026	246	67%	No

Latest Records

Latest records at Bay City Wtr Wks
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 August 2026	Bay City Wtr Wks, US	daily high max (Provisional)	37.8 C (100.0 F)	0.6 C (1.1 F)	45 years	25 of 100 (Routine)
13 August 2026	Bay City Wtr Wks, US	daily high min (Tie)	26.1 C (79.0 F)	tie	60 years	7 of 100 (Routine)
14 July 2026	Bay City Wtr Wks, US	daily rain	101.6 mm (4.0 in)	39.4 mm (1.6 in)	49 years	45 of 100 (Notable)
21 June 2026	Bay City Wtr Wks, US	daily rain	68.6 mm (2.7 in)	0.3 mm (0.01 in)	60 years	28 of 100 (Routine)
19 June 2026	Bay City Wtr Wks, US	daily high min	27.2 C (81.0 F)	1.1 C (2.0 F)	25 years	22 of 100 (Routine)
17 June 2026	Bay City Wtr Wks, US	daily low max	25.6 C (78.1 F)	0.5 C (0.9 F)	112 years	42 of 100 (Notable)
8 June 2026	Bay City Wtr Wks, US	daily high min (Tie)	26.7 C (80.1 F)	tie	31 years	4 of 100 (Routine)
28 May 2026	Bay City Wtr Wks, US	daily low max	22.2 C (72.0 F)	3.9 C (7.0 F)	81 years	49 of 100 (Notable)
20 May 2026	Bay City Wtr Wks, US	daily rain	86.4 mm (3.4 in)	56.7 mm (2.2 in)	115 years	63 of 100 (Major)
17 May 2026	Bay City Wtr Wks, US	daily high min (Tie)	25.6 C (78.1 F)	tie	11 years	3 of 100 (Routine)
28 April 2026	Bay City Wtr Wks, US	daily high min (Tie)	23.9 C (75.0 F)	tie	24 years	4 of 100 (Routine)
20 April 2026	Bay City Wtr Wks, US	daily low max	17.8 C (64.0 F)	2.2 C (4.0 F)	108 years	47 of 100 (Notable)
6 April 2026	Bay City Wtr Wks, US	daily low max	16.7 C (62.1 F)	0.5 C (0.9 F)	32 years	20 of 100 (Routine)
18 March 2026	Bay City Wtr Wks, US	daily low min	1.7 C (35.1 F)	0.5 C (0.9 F)	65 years	29 of 100 (Routine)
17 March 2026	Bay City Wtr Wks, US	daily low min (Tie)	1.1 C (34.0 F)	tie	112 years	10 of 100 (Routine)
10 March 2026	Bay City Wtr Wks, US	monthly high min (Tie)	22.2 C (72.0 F)	tie	80 years	11 of 100 (Routine)
7 March 2026	Bay City Wtr Wks, US	daily high min	21.7 C (71.1 F)	0.6 C (1.1 F)	69 years	31 of 100 (Routine)
6 March 2026	Bay City Wtr Wks, US	daily high min	21.1 C (70.0 F)	0.5 C (0.9 F)	69 years	30 of 100 (Routine)
5 March 2026	Bay City Wtr Wks, US	daily high min	20.6 C (69.1 F)	0.6 C (1.1 F)	29 years	19 of 100 (Routine)
4 March 2026	Bay City Wtr Wks, US	daily high min	20.6 C (69.1 F)	0.6 C (1.1 F)	80 years	35 of 100 (Notable)

Climate Trend

58 complete years, 1915 to 2024

One stripe for each of 58 complete years at Bay City Wtr Wks, 1915 to 2024. Blue stripes are years cooler than the station's own mean of 21.0 C (69.9 F); red stripes are warmer. The coolest year was 1974, at 20.1 C (68.1 F), and the warmest was 2000, at 22.6 C (72.6 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Bay City Wtr Wks as warming stripes, 1915 to 2024
Year	Annual mean temperature	Difference from the station mean
1915	20.5 C	-0.57 C
1943	20.8 C	-0.23 C
1944	21.3 C	+0.25 C
1945	21.6 C	+0.52 C
1948	20.3 C	-0.76 C
1949	21.0 C	-0.09 C
1950	22.0 C	+0.97 C
1951	20.8 C	-0.29 C
1953	21.6 C	+0.54 C
1954	21.8 C	+0.73 C
1955	21.3 C	+0.29 C
1956	21.6 C	+0.56 C
1957	21.5 C	+0.46 C
1958	20.8 C	-0.27 C
1959	20.5 C	-0.56 C
1960	20.4 C	-0.61 C
1961	20.4 C	-0.64 C
1962	21.1 C	+0.09 C
1963	20.9 C	-0.19 C
1964	20.8 C	-0.29 C
1965	21.2 C	+0.16 C
1966	20.1 C	-0.90 C
1967	20.8 C	-0.21 C
1968	20.3 C	-0.73 C
1969	21.2 C	+0.13 C
1970	20.5 C	-0.54 C
1972	20.9 C	-0.18 C
1974	20.1 C	-0.98 C
1978	20.2 C	-0.82 C
1979	20.1 C	-0.98 C
1981	21.1 C	+0.04 C
1983	20.1 C	-0.91 C
1984	21.0 C	-0.01 C
1989	20.1 C	-0.93 C
1990	21.3 C	+0.25 C
1991	20.9 C	-0.19 C
1992	20.6 C	-0.42 C
1993	20.3 C	-0.70 C
1994	20.9 C	-0.15 C
1995	21.1 C	+0.09 C
1999	21.9 C	+0.90 C
2000	22.6 C	+1.52 C
2001	21.7 C	+0.63 C
2002	21.4 C	+0.33 C
2003	21.2 C	+0.18 C
2004	22.2 C	+1.17 C
2006	21.5 C	+0.49 C
2008	21.2 C	+0.12 C
2009	21.4 C	+0.33 C
2010	20.4 C	-0.61 C
2011	21.4 C	+0.35 C
2012	21.6 C	+0.60 C
2015	22.3 C	+1.29 C
2017	21.7 C	+0.62 C
2019	20.4 C	-0.68 C
2020	21.2 C	+0.19 C
2021	20.7 C	-0.30 C
2024	22.1 C	+1.01 C

The annual mean temperature here has risen by 0.06 C (0.00 to 0.13) per decade over 1915 to 2024. In Fahrenheit: 0.12 F (0.00 to 0.23) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Bay City Wtr Wks
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.06 C (0.00 to 0.13) per decade	0.12 F (0.00 to 0.23) per decade	1915 to 2024	58	Rise
Mean daily maximum	-0.01 C (-0.09 to 0.07) per decade	-0.02 F (-0.17 to 0.12) per decade	1915 to 2024	58	Not clearly different from zero
Mean daily minimum	0.1 C (0.1 to 0.2) per decade	0.3 F (0.1 to 0.4) per decade	1915 to 2024	58	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

1909 to 2026

Yearly extremes at Bay City Wtr Wks: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	2000	36.7 C (98.1 F)	91
Coldest night (TNn)	-13.9 C (7.0 F)	1989	-3.9 C (25.0 F)	91
Wettest day (Rx1day)	231.6 mm (9.1 in)	2019	95.4 mm (3.8 in)	94
Wettest five days (Rx5day)	456.7 mm (18.0 in)	1961	153.1 mm (6.0 in)	94
Longest dry spell (CDD)	59 days	1916	27 days	94

Hottest day (TXx)

The hottest day of the year at Bay City Wtr Wks, 1909 to 2026. The record is 42.8 C (109.0 F) in 2000, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Bay City Wtr Wks by year
Year	Hottest day (TXx)
1909	n/a
1910	n/a
1911	n/a
1912	36.7 C (98.1 F)
1913	34.4 C (93.9 F)
1914	32.8 C (91.0 F)
1915	34.4 C (93.9 F)
1916	35.6 C (96.1 F)
1917	35.6 C (96.1 F)
1942	35.6 C (96.1 F)
1943	38.3 C (100.9 F)
1944	37.2 C (99.0 F)
1945	36.7 C (98.1 F)
1946	36.7 C (98.1 F)
1947	36.7 C (98.1 F)
1948	38.3 C (100.9 F)
1949	36.7 C (98.1 F)
1950	36.1 C (97.0 F)
1951	37.8 C (100.0 F)
1952	37.2 C (99.0 F)
1953	37.8 C (100.0 F)
1954	41.1 C (106.0 F)
1955	37.2 C (99.0 F)
1956	37.8 C (100.0 F)
1957	38.3 C (100.9 F)
1958	37.8 C (100.0 F)
1959	36.7 C (98.1 F)
1960	37.2 C (99.0 F)
1961	35.6 C (96.1 F)
1962	40.6 C (105.1 F)
1963	37.8 C (100.0 F)
1964	38.3 C (100.9 F)
1965	37.8 C (100.0 F)
1966	36.1 C (97.0 F)
1967	36.7 C (98.1 F)
1968	35.6 C (96.1 F)
1969	37.8 C (100.0 F)
1970	36.7 C (98.1 F)
1971	36.1 C (97.0 F)
1972	36.7 C (98.1 F)
1973	35.0 C (95.0 F)
1974	37.8 C (100.0 F)
1975	35.6 C (96.1 F)
1976	38.3 C (100.9 F)
1977	33.3 C (91.9 F)
1978	37.2 C (99.0 F)
1979	36.1 C (97.0 F)
1980	38.9 C (102.0 F)
1981	36.1 C (97.0 F)
1982	37.2 C (99.0 F)
1983	36.1 C (97.0 F)
1984	37.8 C (100.0 F)
1985	36.7 C (98.1 F)
1986	38.3 C (100.9 F)
1987	36.1 C (97.0 F)
1988	36.7 C (98.1 F)
1989	35.0 C (95.0 F)
1990	37.2 C (99.0 F)
1991	35.0 C (95.0 F)
1992	35.6 C (96.1 F)
1993	35.6 C (96.1 F)
1994	33.9 C (93.0 F)
1995	37.2 C (99.0 F)
1996	36.7 C (98.1 F)
1997	36.7 C (98.1 F)
1998	41.7 C (107.1 F)
1999	37.8 C (100.0 F)
2000	42.8 C (109.0 F)
2001	37.2 C (99.0 F)
2002	35.6 C (96.1 F)
2003	36.7 C (98.1 F)
2004	36.7 C (98.1 F)
2005	37.8 C (100.0 F)
2006	36.1 C (97.0 F)
2007	36.1 C (97.0 F)
2008	37.2 C (99.0 F)
2009	37.8 C (100.0 F)
2010	37.2 C (99.0 F)
2011	40.0 C (104.0 F)
2012	38.3 C (100.9 F)
2013	41.1 C (106.0 F)
2014	36.1 C (97.0 F)
2015	38.3 C (100.9 F)
2016	35.6 C (96.1 F)
2017	35.0 C (95.0 F)
2018	36.7 C (98.1 F)
2019	36.7 C (98.1 F)
2020	36.7 C (98.1 F)
2021	35.0 C (95.0 F)
2022	38.3 C (100.9 F)
2023	41.7 C (107.1 F)
2024	37.2 C (99.0 F)
2025	36.7 C (98.1 F)
2026	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Bay City Wtr Wks, 1909 to 2026. The record is -13.9 C (7.0 F) in 1989, marked on the chart; the median year is -3.9 C (25.0 F).

Coldest night (TNn) at Bay City Wtr Wks by year
Year	Coldest night (TNn)
1909	n/a
1910	n/a
1911	n/a
1912	-5.0 C (23.0 F)
1913	-3.9 C (25.0 F)
1914	-2.8 C (27.0 F)
1915	-1.7 C (28.9 F)
1916	-5.6 C (21.9 F)
1917	-6.7 C (19.9 F)
1942	0.6 C (33.1 F)
1943	-7.2 C (19.0 F)
1944	-3.3 C (26.1 F)
1945	-3.3 C (26.1 F)
1946	-1.7 C (28.9 F)
1947	-5.6 C (21.9 F)
1948	-5.0 C (23.0 F)
1949	-11.7 C (10.9 F)
1950	-7.2 C (19.0 F)
1951	-10.0 C (14.0 F)
1952	1.1 C (34.0 F)
1953	-3.3 C (26.1 F)
1954	-4.4 C (24.1 F)
1955	-3.9 C (25.0 F)
1956	-0.6 C (30.9 F)
1957	-3.9 C (25.0 F)
1958	-3.9 C (25.0 F)
1959	-5.0 C (23.0 F)
1960	-3.3 C (26.1 F)
1961	-2.8 C (27.0 F)
1962	-8.9 C (16.0 F)
1963	-8.3 C (17.1 F)
1964	-7.2 C (19.0 F)
1965	-3.9 C (25.0 F)
1966	-6.7 C (19.9 F)
1967	-3.3 C (26.1 F)
1968	-2.2 C (28.0 F)
1969	-2.8 C (27.0 F)
1970	-5.6 C (21.9 F)
1971	-3.3 C (26.1 F)
1972	-3.9 C (25.0 F)
1973	-7.8 C (18.0 F)
1974	-5.6 C (21.9 F)
1975	-7.8 C (18.0 F)
1976	-7.8 C (18.0 F)
1977	-6.1 C (21.0 F)
1978	-4.4 C (24.1 F)
1979	-7.8 C (18.0 F)
1980	-5.6 C (21.9 F)
1981	-6.7 C (19.9 F)
1982	-10.0 C (14.0 F)
1983	-10.6 C (12.9 F)
1984	-5.6 C (21.9 F)
1985	-8.3 C (17.1 F)
1986	-1.7 C (28.9 F)
1987	6.1 C (43.0 F)
1988	0.6 C (33.1 F)
1989	-13.9 C (7.0 F)
1990	-6.7 C (19.9 F)
1991	-1.1 C (30.0 F)
1992	-2.2 C (28.0 F)
1993	-2.2 C (28.0 F)
1994	-3.3 C (26.1 F)
1995	-2.8 C (27.0 F)
1996	-6.1 C (21.0 F)
1997	-1.1 C (30.0 F)
1998	-1.7 C (28.9 F)
1999	-2.2 C (28.0 F)
2000	-1.1 C (30.0 F)
2001	-0.6 C (30.9 F)
2002	-4.4 C (24.1 F)
2003	-1.7 C (28.9 F)
2004	-4.4 C (24.1 F)
2005	-2.2 C (28.0 F)
2006	-1.7 C (28.9 F)
2007	-3.9 C (25.0 F)
2008	-2.8 C (27.0 F)
2009	-3.9 C (25.0 F)
2010	-7.2 C (19.0 F)
2011	-6.7 C (19.9 F)
2012	-1.7 C (28.9 F)
2013	-2.2 C (28.0 F)
2014	-4.4 C (24.1 F)
2015	-1.1 C (30.0 F)
2016	-2.8 C (27.0 F)
2017	-6.7 C (19.9 F)
2018	-7.8 C (18.0 F)
2019	-2.8 C (27.0 F)
2020	-2.8 C (27.0 F)
2021	-12.2 C (10.0 F)
2022	-5.0 C (23.0 F)
2023	-1.1 C (30.0 F)
2024	-7.8 C (18.0 F)
2025	-8.9 C (16.0 F)
2026	-6.7 C (19.9 F)

Wettest day (Rx1day)

The wettest day of the year at Bay City Wtr Wks, 1909 to 2026. The record is 231.6 mm (9.1 in) in 2019, marked on the chart; the median year is 95.4 mm (3.8 in).

Wettest day (Rx1day) at Bay City Wtr Wks by year
Year	Wettest day (Rx1day)
1909	45.7 mm (1.8 in)
1910	62.2 mm (2.4 in)
1911	72.9 mm (2.9 in)
1912	110.7 mm (4.4 in)
1913	114.8 mm (4.5 in)
1914	83.3 mm (3.3 in)
1915	95.5 mm (3.8 in)
1916	86.9 mm (3.4 in)
1917	72.4 mm (2.9 in)
1942	104.9 mm (4.1 in)
1943	131.6 mm (5.2 in)
1944	75.9 mm (3.0 in)
1945	124.0 mm (4.9 in)
1946	76.2 mm (3.0 in)
1947	141.2 mm (5.6 in)
1948	95.3 mm (3.8 in)
1949	149.9 mm (5.9 in)
1950	70.9 mm (2.8 in)
1951	59.9 mm (2.4 in)
1952	58.9 mm (2.3 in)
1953	183.6 mm (7.2 in)
1954	65.0 mm (2.6 in)
1955	43.9 mm (1.7 in)
1956	104.4 mm (4.1 in)
1957	88.9 mm (3.5 in)
1958	65.3 mm (2.6 in)
1959	107.2 mm (4.2 in)
1960	142.2 mm (5.6 in)
1961	227.3 mm (8.9 in)
1962	67.8 mm (2.7 in)
1963	58.2 mm (2.3 in)
1964	96.5 mm (3.8 in)
1965	158.2 mm (6.2 in)
1966	101.3 mm (4.0 in)
1967	124.0 mm (4.9 in)
1968	88.6 mm (3.5 in)
1969	92.5 mm (3.6 in)
1970	161.3 mm (6.4 in)
1971	79.5 mm (3.1 in)
1972	83.6 mm (3.3 in)
1973	98.6 mm (3.9 in)
1974	90.9 mm (3.6 in)
1975	53.8 mm (2.1 in)
1976	69.3 mm (2.7 in)
1977	61.2 mm (2.4 in)
1978	88.1 mm (3.5 in)
1979	201.7 mm (7.9 in)
1980	102.9 mm (4.1 in)
1981	146.3 mm (5.8 in)
1982	182.4 mm (7.2 in)
1983	107.7 mm (4.2 in)
1984	148.6 mm (5.9 in)
1985	63.5 mm (2.5 in)
1986	97.8 mm (3.9 in)
1987	87.6 mm (3.4 in)
1988	59.4 mm (2.3 in)
1989	158.5 mm (6.2 in)
1990	108.7 mm (4.3 in)
1991	160.3 mm (6.3 in)
1992	126.5 mm (5.0 in)
1993	93.7 mm (3.7 in)
1994	86.9 mm (3.4 in)
1995	158.0 mm (6.2 in)
1996	118.4 mm (4.7 in)
1997	119.9 mm (4.7 in)
1998	174.0 mm (6.9 in)
1999	59.9 mm (2.4 in)
2000	121.9 mm (4.8 in)
2001	89.4 mm (3.5 in)
2002	190.0 mm (7.5 in)
2003	51.6 mm (2.0 in)
2004	171.5 mm (6.8 in)
2005	53.3 mm (2.1 in)
2006	106.7 mm (4.2 in)
2007	90.4 mm (3.6 in)
2008	58.7 mm (2.3 in)
2009	58.7 mm (2.3 in)
2010	93.7 mm (3.7 in)
2011	80.0 mm (3.1 in)
2012	140.7 mm (5.5 in)
2013	64.3 mm (2.5 in)
2014	57.9 mm (2.3 in)
2015	147.3 mm (5.8 in)
2016	88.9 mm (3.5 in)
2017	135.9 mm (5.4 in)
2018	121.9 mm (4.8 in)
2019	231.6 mm (9.1 in)
2020	97.3 mm (3.8 in)
2021	102.9 mm (4.1 in)
2022	81.3 mm (3.2 in)
2023	63.5 mm (2.5 in)
2024	88.9 mm (3.5 in)
2025	104.4 mm (4.1 in)
2026	101.6 mm (4.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bay City Wtr Wks, 1909 to 2026. The record is 456.7 mm (18.0 in) in 1961, marked on the chart; the median year is 153.1 mm (6.0 in).

Wettest five days (Rx5day) at Bay City Wtr Wks by year
Year	Wettest five days (Rx5day)
1909	53.9 mm (2.1 in)
1910	79.8 mm (3.1 in)
1911	118.4 mm (4.7 in)
1912	112.2 mm (4.4 in)
1913	158.2 mm (6.2 in)
1914	127.4 mm (5.0 in)
1915	115.6 mm (4.6 in)
1916	119.4 mm (4.7 in)
1917	80.3 mm (3.2 in)
1942	270.0 mm (10.6 in)
1943	135.4 mm (5.3 in)
1944	137.5 mm (5.4 in)
1945	234.2 mm (9.2 in)
1946	155.7 mm (6.1 in)
1947	173.2 mm (6.8 in)
1948	130.4 mm (5.1 in)
1949	228.1 mm (9.0 in)
1950	99.3 mm (3.9 in)
1951	164.3 mm (6.5 in)
1952	66.3 mm (2.6 in)
1953	332.9 mm (13.1 in)
1954	71.1 mm (2.8 in)
1955	80.3 mm (3.2 in)
1956	106.5 mm (4.2 in)
1957	172.8 mm (6.8 in)
1958	179.6 mm (7.1 in)
1959	153.2 mm (6.0 in)
1960	395.7 mm (15.6 in)
1961	456.7 mm (18.0 in)
1962	93.2 mm (3.7 in)
1963	61.2 mm (2.4 in)
1964	136.9 mm (5.4 in)
1965	193.5 mm (7.6 in)
1966	197.0 mm (7.8 in)
1967	188.8 mm (7.4 in)
1968	143.6 mm (5.7 in)
1969	141.0 mm (5.6 in)
1970	179.9 mm (7.1 in)
1971	153.1 mm (6.0 in)
1972	138.3 mm (5.4 in)
1973	195.4 mm (7.7 in)
1974	120.7 mm (4.8 in)
1975	65.2 mm (2.6 in)
1976	141.9 mm (5.6 in)
1977	82.0 mm (3.2 in)
1978	104.2 mm (4.1 in)
1979	368.4 mm (14.5 in)
1980	119.1 mm (4.7 in)
1981	153.2 mm (6.0 in)
1982	182.9 mm (7.2 in)
1983	256.3 mm (10.1 in)
1984	300.2 mm (11.8 in)
1985	103.5 mm (4.1 in)
1986	178.3 mm (7.0 in)
1987	114.8 mm (4.5 in)
1988	61.0 mm (2.4 in)
1989	168.9 mm (6.6 in)
1990	108.7 mm (4.3 in)
1991	245.9 mm (9.7 in)
1992	212.1 mm (8.4 in)
1993	121.5 mm (4.8 in)
1994	130.7 mm (5.1 in)
1995	191.6 mm (7.5 in)
1996	206.8 mm (8.1 in)
1997	273.7 mm (10.8 in)
1998	338.9 mm (13.3 in)
1999	128.0 mm (5.0 in)
2000	131.8 mm (5.2 in)
2001	257.7 mm (10.1 in)
2002	272.1 mm (10.7 in)
2003	131.6 mm (5.2 in)
2004	222.0 mm (8.7 in)
2005	102.1 mm (4.0 in)
2006	164.8 mm (6.5 in)
2007	228.4 mm (9.0 in)
2008	115.0 mm (4.5 in)
2009	99.6 mm (3.9 in)
2010	216.7 mm (8.5 in)
2011	86.3 mm (3.4 in)
2012	213.7 mm (8.4 in)
2013	86.9 mm (3.4 in)
2014	86.3 mm (3.4 in)
2015	168.6 mm (6.6 in)
2016	174.3 mm (6.9 in)
2017	206.8 mm (8.1 in)
2018	225.3 mm (8.9 in)
2019	247.6 mm (9.7 in)
2020	143.7 mm (5.7 in)
2021	195.7 mm (7.7 in)
2022	104.7 mm (4.1 in)
2023	123.4 mm (4.9 in)
2024	264.3 mm (10.4 in)
2025	198.4 mm (7.8 in)
2026	180.0 mm (7.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bay City Wtr Wks, 1909 to 2026. The record is 59 days in 1916, marked on the chart; the median year is 27 days.

Longest dry spell (CDD) at Bay City Wtr Wks by year
Year	Longest dry spell (CDD)
1909	12 days
1910	36 days
1911	37 days
1912	30 days
1913	25 days
1914	34 days
1915	27 days
1916	59 days
1917	33 days
1942	35 days
1943	22 days
1944	30 days
1945	20 days
1946	19 days
1947	25 days
1948	27 days
1949	30 days
1950	31 days
1951	24 days
1952	47 days
1953	27 days
1954	29 days
1955	32 days
1956	41 days
1957	18 days
1958	28 days
1959	22 days
1960	19 days
1961	19 days
1962	27 days
1963	24 days
1964	25 days
1965	33 days
1966	18 days
1967	39 days
1968	18 days
1969	36 days
1970	29 days
1971	27 days
1972	21 days
1973	26 days
1974	33 days
1975	30 days
1976	33 days
1977	31 days
1978	32 days
1979	40 days
1980	31 days
1981	20 days
1982	21 days
1983	19 days
1984	42 days
1985	14 days
1986	27 days
1987	30 days
1988	17 days
1989	23 days
1990	18 days
1991	27 days
1992	15 days
1993	17 days
1994	22 days
1995	20 days
1996	21 days
1997	18 days
1998	51 days
1999	27 days
2000	18 days
2001	22 days
2002	38 days
2003	44 days
2004	27 days
2005	19 days
2006	30 days
2007	19 days
2008	21 days
2009	31 days
2010	38 days
2011	42 days
2012	21 days
2013	27 days
2014	18 days
2015	43 days
2016	19 days
2017	24 days
2018	28 days
2019	24 days
2020	34 days
2021	20 days
2022	51 days
2023	45 days
2024	35 days
2025	28 days
2026	26 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

45 years with a frost

Across 45 years with a frost, the median last spring frost at Bay City Wtr Wks falls on 16 February and the median first autumn frost on 6 December, which leaves a median of 288 days between them.

Fitted over all years, the growing season changes by +0.6 days per decade at this station.

Frost dates and growing season at Bay City Wtr Wks
Measure	Median, all years	Earliest period	Recent period (1961 to 2024)	Recent against earliest	Fitted trend
Last spring frost	16 February	n/a	19 February	n/a	-1.3 days per decade
First autumn frost	6 December	n/a	7 December	n/a	-0.7 days per decade
Growing days	288 days	n/a	288 days	n/a	+0.6 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

76 years, 1910 to 2025

A day with at least 97.4 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 255.6 mm (10.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Bay City 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	97.4 mm (3.8 in)
5 years	135.3 mm (5.3 in)
10 years	162.0 mm (6.4 in)
25 years	197.9 mm (7.8 in)
50 years	226.2 mm (8.9 in)
100 years	255.6 mm (10.1 in)	Longer than the 76 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, 76 years of values from 1910 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: 231.6 mm (9.1 in) in 2019; 227.3 mm (8.9 in) in 1961; 201.7 mm (7.9 in) in 1979.

Station Changes

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

Climate Twins

2002 to 2024 against 1961 to 1990

Over 2002 to 2024, Bay City Wtr Wks had a mean temperature of 21.4 C (70.5 F) and 1,136.2 mm (44.7 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Refugio (United States, 148 km away), Jacksonville NAS (United States, 1,389 km away) and Houston Wb City (United States, 106 km away).

Climate twins of Bay City Wtr Wks: stations whose 1961 to 1990 climate is closest to its 2002 to 2024 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Refugio	United States	148 km (92 mi)	21.5 C (70.7 F)	1,052.8 mm (41.4 in)	0.48
Jacksonville NAS	United States	1,389 km (863 mi)	20.9 C (69.5 F)	1,170.5 mm (46.1 in)	0.67
Houston Wb City	United States	106 km (66 mi)	20.9 C (69.5 F)	1,083.5 mm (42.7 in)	0.74

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Bay City Wtr Wks standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bay City 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).