W Blocton Weather Records (USC00018809)

Record envelope, standing records and threshold days for W Blocton (USC00018809), Alabama, United States, with 87 years of record.

Key Facts for W Blocton

W Blocton (USC00018809) is a weather station in Alabama, United States at 33.12 latitude and -87.13 longitude, 162 m (530 ft) above sea level.
The station reports from 1940 to 2026, 87 years of record.
0 records set at W Blocton still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
W Blocton set a daily record precipitation of 26.7 mm (1.1 in) on 25 May 2026.

About the Station

Location: Alabama, United States, 33.12 latitude, -87.13 longitude.
Elevation: 162 m (530 ft).
Period of record: 1940 to 2026, 87 years.
Eligible elements: 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 W Blocton. 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 W Blocton, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at W Blocton still stand.

All-Time Record Progression

4 new records

4 all-time records were set at W Blocton between 16 February 1990 and 21 September 1998. Each dot is a new record.

When W Blocton set new all-time records
Date	Kind	Detail
1990-02-16	Record daily precipitation	Record daily precipitation 220.0 mm (8.7 in)
1992-01-19	Record daily snowfall	Record daily snowfall 11.4 cm (4.5 in)
1993-03-14	Record daily snowfall	Record daily snowfall 38.1 cm (15.0 in)
1998-09-21	Record daily precipitation	Record daily precipitation 254.0 mm (10.0 in)

Wettest Day of Each Month

Sep: 254.0 mm (10.0 in)

The wettest day on record for each calendar month at W Blocton. The most was 254.0 mm (10.0 in) on 21 September 1998.

Record daily precipitation for each month at W Blocton
Month	Record daily precipitation (mm)	Date
Jan	106.7 mm (4.2 in)	18 January 1987
Feb	220.0 mm (8.7 in)	16 February 1990
Mar	136.9 mm (5.4 in)	29 March 1951
Apr	162.6 mm (6.4 in)	27 April 1966
May	171.5 mm (6.8 in)	5 May 2021
Jun	149.9 mm (5.9 in)	2 June 1970
Jul	103.4 mm (4.1 in)	7 July 1955
Aug	109.2 mm (4.3 in)	10 August 1970
Sep	254.0 mm (10.0 in)	21 September 1998
Oct	110.5 mm (4.4 in)	8 October 2017
Nov	127.8 mm (5.0 in)	28 November 1948
Dec	195.8 mm (7.7 in)	28 December 1942

Latest Records

Latest records at W Blocton
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 May 2026	W Blocton, US	daily rain	26.7 mm (1.1 in)	9.7 mm (0.38 in)	28 years	21 of 100 (Routine)
29 April 2026	W Blocton, US	daily rain	58.2 mm (2.3 in)	12.5 mm (0.5 in)	72 years	35 of 100 (Notable)
12 March 2026	W Blocton, US	daily rain	44.7 mm (1.8 in)	9.1 mm (0.36 in)	8 years	14 of 100 (Routine)
10 January 2026	W Blocton, US	daily rain	76.2 mm (3.0 in)	7.6 mm (0.30 in)	54 years	28 of 100 (Routine)
26 November 2025	W Blocton, US	daily rain	101.6 mm (4.0 in)	44.2 mm (1.7 in)	39 years	45 of 100 (Notable)
25 November 2025	W Blocton, US	daily rain	59.2 mm (2.3 in)	8.4 mm (0.33 in)	60 years	31 of 100 (Routine)
27 October 2025	W Blocton, US	daily rain	50.8 mm (2.0 in)	12.2 mm (0.5 in)	15 years	18 of 100 (Routine)
19 July 2025	W Blocton, US	daily rain	28.7 mm (1.1 in)	0.5 mm (0.02 in)	78 years	31 of 100 (Routine)
12 February 2024	W Blocton, US	daily rain	63.5 mm (2.5 in)	20.3 mm (0.8 in)	58 years	35 of 100 (Notable)
9 January 2024	W Blocton, US	daily rain	74.7 mm (2.9 in)	26.2 mm (1.0 in)	70 years	45 of 100 (Notable)
25 December 2023	W Blocton, US	daily rain	54.6 mm (2.1 in)	19.0 mm (0.7 in)	17 years	23 of 100 (Routine)
14 June 2023	W Blocton, US	daily rain	66.0 mm (2.6 in)	23.3 mm (0.9 in)	14 years	25 of 100 (Routine)
30 November 2022	W Blocton, US	daily rain	100.3 mm (3.9 in)	62.2 mm (2.4 in)	36 years	55 of 100 (Notable)
5 September 2022	W Blocton, US	daily rain	35.6 mm (1.4 in)	1.3 mm (0.05 in)	72 years	29 of 100 (Routine)
15 July 2022	W Blocton, US	daily rain	34.8 mm (1.4 in)	6.6 mm (0.26 in)	4 years	13 of 100 (Routine)
23 March 2022	W Blocton, US	daily rain	57.9 mm (2.3 in)	13.2 mm (0.5 in)	73 years	37 of 100 (Notable)
20 June 2021	W Blocton, US	daily rain (Tie)	66.0 mm (2.6 in)	tie	52 years	5 of 100 (Routine)
5 May 2021	W Blocton, US	monthly rain	171.5 mm (6.8 in)	67.4 mm (2.7 in)	33 years	68 of 100 (Major)
10 April 2021	W Blocton, US	daily rain	63.5 mm (2.5 in)	22.9 mm (0.9 in)	68 years	39 of 100 (Notable)
18 February 2021	W Blocton, US	daily rain	40.6 mm (1.6 in)	1.2 mm (0.05 in)	60 years	26 of 100 (Routine)

Extremes by Year

1940 to 2026

Yearly extremes at W Blocton: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	254.0 mm (10.0 in)	1998	88.9 mm (3.5 in)	87
Wettest five days (Rx5day)	342.9 mm (13.5 in)	1961	139.2 mm (5.5 in)	87
Longest dry spell (CDD)	45 days	2021	21 days	87

Wettest day (Rx1day)

The wettest day of the year at W Blocton, 1940 to 2026. The record is 254.0 mm (10.0 in) in 1998, marked on the chart; the median year is 88.9 mm (3.5 in).

Wettest day (Rx1day) at W Blocton by year
Year	Wettest day (Rx1day)
1940	90.4 mm (3.6 in)
1941	73.2 mm (2.9 in)
1942	195.8 mm (7.7 in)
1943	67.3 mm (2.6 in)
1944	49.5 mm (1.9 in)
1945	94.0 mm (3.7 in)
1946	76.7 mm (3.0 in)
1947	63.5 mm (2.5 in)
1948	127.8 mm (5.0 in)
1949	73.9 mm (2.9 in)
1950	81.3 mm (3.2 in)
1951	136.9 mm (5.4 in)
1952	74.7 mm (2.9 in)
1953	61.0 mm (2.4 in)
1954	91.4 mm (3.6 in)
1955	103.4 mm (4.1 in)
1956	101.6 mm (4.0 in)
1957	58.4 mm (2.3 in)
1958	101.6 mm (4.0 in)
1959	63.5 mm (2.5 in)
1960	54.6 mm (2.1 in)
1961	104.1 mm (4.1 in)
1962	139.7 mm (5.5 in)
1963	78.7 mm (3.1 in)
1964	101.6 mm (4.0 in)
1965	71.1 mm (2.8 in)
1966	162.6 mm (6.4 in)
1967	50.8 mm (2.0 in)
1968	104.1 mm (4.1 in)
1969	88.9 mm (3.5 in)
1970	149.9 mm (5.9 in)
1971	64.8 mm (2.6 in)
1972	80.0 mm (3.1 in)
1973	97.8 mm (3.9 in)
1974	109.2 mm (4.3 in)
1975	67.3 mm (2.6 in)
1976	90.2 mm (3.6 in)
1977	127.0 mm (5.0 in)
1978	104.1 mm (4.1 in)
1979	121.9 mm (4.8 in)
1980	113.0 mm (4.4 in)
1981	72.4 mm (2.9 in)
1982	152.4 mm (6.0 in)
1983	102.9 mm (4.1 in)
1984	79.2 mm (3.1 in)
1985	76.7 mm (3.0 in)
1986	72.4 mm (2.9 in)
1987	106.7 mm (4.2 in)
1988	76.2 mm (3.0 in)
1989	69.3 mm (2.7 in)
1990	220.0 mm (8.7 in)
1991	114.3 mm (4.5 in)
1992	83.8 mm (3.3 in)
1993	73.7 mm (2.9 in)
1994	63.5 mm (2.5 in)
1995	91.4 mm (3.6 in)
1996	88.9 mm (3.5 in)
1997	68.6 mm (2.7 in)
1998	254.0 mm (10.0 in)
1999	81.3 mm (3.2 in)
2000	68.6 mm (2.7 in)
2001	76.2 mm (3.0 in)
2002	69.6 mm (2.7 in)
2003	101.6 mm (4.0 in)
2004	163.8 mm (6.4 in)
2005	102.1 mm (4.0 in)
2006	68.6 mm (2.7 in)
2007	51.3 mm (2.0 in)
2008	83.8 mm (3.3 in)
2009	129.5 mm (5.1 in)
2010	88.1 mm (3.5 in)
2011	123.2 mm (4.9 in)
2012	96.5 mm (3.8 in)
2013	92.7 mm (3.6 in)
2014	148.6 mm (5.9 in)
2015	60.7 mm (2.4 in)
2016	81.3 mm (3.2 in)
2017	110.5 mm (4.4 in)
2018	132.1 mm (5.2 in)
2019	64.8 mm (2.6 in)
2020	135.9 mm (5.4 in)
2021	171.5 mm (6.8 in)
2022	100.3 mm (3.9 in)
2023	66.0 mm (2.6 in)
2024	74.7 mm (2.9 in)
2025	101.6 mm (4.0 in)
2026	76.2 mm (3.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at W Blocton, 1940 to 2026. The record is 342.9 mm (13.5 in) in 1961, marked on the chart; the median year is 139.2 mm (5.5 in).

Wettest five days (Rx5day) at W Blocton by year
Year	Wettest five days (Rx5day)
1940	137.5 mm (5.4 in)
1941	102.9 mm (4.1 in)
1942	246.9 mm (9.7 in)
1943	197.8 mm (7.8 in)
1944	78.0 mm (3.1 in)
1945	116.4 mm (4.6 in)
1946	139.2 mm (5.5 in)
1947	138.9 mm (5.5 in)
1948	206.5 mm (8.1 in)
1949	138.9 mm (5.5 in)
1950	149.7 mm (5.9 in)
1951	188.7 mm (7.4 in)
1952	96.2 mm (3.8 in)
1953	136.7 mm (5.4 in)
1954	96.7 mm (3.8 in)
1955	125.8 mm (5.0 in)
1956	102.9 mm (4.1 in)
1957	141.0 mm (5.6 in)
1958	149.4 mm (5.9 in)
1959	121.9 mm (4.8 in)
1960	88.9 mm (3.5 in)
1961	342.9 mm (13.5 in)
1962	162.6 mm (6.4 in)
1963	156.3 mm (6.2 in)
1964	134.7 mm (5.3 in)
1965	98.6 mm (3.9 in)
1966	179.9 mm (7.1 in)
1967	142.8 mm (5.6 in)
1968	143.5 mm (5.6 in)
1969	124.5 mm (4.9 in)
1970	224.9 mm (8.9 in)
1971	134.6 mm (5.3 in)
1972	139.7 mm (5.5 in)
1973	143.5 mm (5.6 in)
1974	119.4 mm (4.7 in)
1975	96.5 mm (3.8 in)
1976	184.2 mm (7.3 in)
1977	149.9 mm (5.9 in)
1978	147.3 mm (5.8 in)
1979	188.0 mm (7.4 in)
1980	163.8 mm (6.4 in)
1981	100.4 mm (4.0 in)
1982	171.5 mm (6.8 in)
1983	179.6 mm (7.1 in)
1984	127.7 mm (5.0 in)
1985	149.6 mm (5.9 in)
1986	135.9 mm (5.4 in)
1987	214.4 mm (8.4 in)
1988	102.3 mm (4.0 in)
1989	123.2 mm (4.9 in)
1990	270.6 mm (10.7 in)
1991	212.0 mm (8.3 in)
1992	134.1 mm (5.3 in)
1993	98.1 mm (3.9 in)
1994	92.5 mm (3.6 in)
1995	181.0 mm (7.1 in)
1996	149.8 mm (5.9 in)
1997	94.1 mm (3.7 in)
1998	259.1 mm (10.2 in)
1999	110.7 mm (4.4 in)
2000	136.9 mm (5.4 in)
2001	154.5 mm (6.1 in)
2002	149.6 mm (5.9 in)
2003	114.2 mm (4.5 in)
2004	215.9 mm (8.5 in)
2005	213.2 mm (8.4 in)
2006	114.5 mm (4.5 in)
2007	60.2 mm (2.4 in)
2008	134.6 mm (5.3 in)
2009	275.3 mm (10.8 in)
2010	181.1 mm (7.1 in)
2011	157.7 mm (6.2 in)
2012	114.1 mm (4.5 in)
2013	116.9 mm (4.6 in)
2014	162.8 mm (6.4 in)
2015	108.9 mm (4.3 in)
2016	98.1 mm (3.9 in)
2017	117.3 mm (4.6 in)
2018	171.5 mm (6.8 in)
2019	154.2 mm (6.1 in)
2020	203.7 mm (8.0 in)
2021	174.0 mm (6.9 in)
2022	116.8 mm (4.6 in)
2023	86.9 mm (3.4 in)
2024	118.1 mm (4.6 in)
2025	164.1 mm (6.5 in)
2026	117.3 mm (4.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at W Blocton, 1940 to 2026. The record is 45 days in 2021, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at W Blocton by year
Year	Longest dry spell (CDD)
1940	13 days
1941	22 days
1942	24 days
1943	20 days
1944	9 days
1945	21 days
1946	21 days
1947	17 days
1948	20 days
1949	21 days
1950	9 days
1951	18 days
1952	29 days
1953	24 days
1954	15 days
1955	14 days
1956	28 days
1957	20 days
1958	27 days
1959	18 days
1960	17 days
1961	25 days
1962	28 days
1963	33 days
1964	34 days
1965	27 days
1966	20 days
1967	19 days
1968	27 days
1969	20 days
1970	24 days
1971	14 days
1972	16 days
1973	15 days
1974	17 days
1975	13 days
1976	16 days
1977	17 days
1978	40 days
1979	12 days
1980	25 days
1981	21 days
1982	15 days
1983	19 days
1984	26 days
1985	15 days
1986	23 days
1987	30 days
1988	26 days
1989	15 days
1990	15 days
1991	18 days
1992	21 days
1993	18 days
1994	15 days
1995	22 days
1996	18 days
1997	21 days
1998	25 days
1999	19 days
2000	28 days
2001	36 days
2002	16 days
2003	31 days
2004	21 days
2005	25 days
2006	21 days
2007	22 days
2008	22 days
2009	13 days
2010	22 days
2011	15 days
2012	17 days
2013	32 days
2014	20 days
2015	21 days
2016	43 days
2017	16 days
2018	19 days
2019	38 days
2020	17 days
2021	45 days
2022	32 days
2023	29 days
2024	33 days
2025	29 days
2026	18 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

82 years, 1941 to 2025

A day with at least 88.7 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 245.2 mm (9.7 in) of rain is expected about once in 100 years.

Rainfall return levels at W Blocton: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	88.7 mm (3.5 in)
5 years	119.6 mm (4.7 in)
10 years	143.9 mm (5.7 in)
25 years	179.6 mm (7.1 in)
50 years	210.4 mm (8.3 in)
100 years	245.2 mm (9.7 in)	Longer than the 82 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, 82 years of values from 1941 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: 254.0 mm (10.0 in) in 1998; 220.0 mm (8.7 in) in 1990; 195.8 mm (7.7 in) in 1942.

Download the Data

Data for W Blocton standing records by year: CSV or JSON. Field meanings are on the data page.
Data for W Blocton 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a