Tomball Weather Records (USC00419076)

Record envelope, standing records and threshold days for Tomball (USC00419076), Texas, United States, with 73 years of record.

Key Facts for Tomball

Tomball (USC00419076) is a weather station in Texas, United States at 30.10 latitude and -95.61 longitude, 64 m (210 ft) above sea level.
The station reports from 1941 to 2013, 73 years of record.
2 records set at Tomball still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Tomball set a daily record precipitation of 54.4 mm (2.1 in) on 21 July 2013.

About the Station

Location: Texas, United States, 30.10 latitude, -95.61 longitude.
Elevation: 64 m (210 ft).
Period of record: 1941 to 2013, 73 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 Tomball. 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 Tomball, 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	-8.3 C (17.1 F)	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

2 standing records

2 records at Tomball still stand. 1978 holds the most, with 2.

All-Time Record Progression

3 new records

3 all-time records were set at Tomball between 19 April 1979 and 15 September 2008. Each dot is a new record.

When Tomball set new all-time records
Date	Kind	Detail
1979-04-19	Record daily precipitation	Record daily precipitation 173.5 mm (6.8 in)
1981-09-01	Record daily precipitation	Record daily precipitation 268.5 mm (10.6 in)
2008-09-15	Record daily precipitation	Record daily precipitation 323.9 mm (12.8 in)

Wettest Day of Each Month

Sep: 323.9 mm (12.8 in)

The wettest day on record for each calendar month at Tomball. The most was 323.9 mm (12.8 in) on 15 September 2008.

Record daily precipitation for each month at Tomball
Month	Record daily precipitation (mm)	Date
Jan	102.9 mm (4.1 in)	19 January 1979
Feb	71.1 mm (2.8 in)	11 February 1985
Mar	120.7 mm (4.8 in)	9 March 1994
Apr	173.5 mm (6.8 in)	19 April 1979
May	154.9 mm (6.1 in)	20 May 2000
Jun	210.1 mm (8.3 in)	9 June 2001
Jul	157.5 mm (6.2 in)	28 July 1943
Aug	159.5 mm (6.3 in)	28 August 1945
Sep	323.9 mm (12.8 in)	15 September 2008
Oct	189.7 mm (7.5 in)	27 October 2006
Nov	217.2 mm (8.6 in)	25 November 1985
Dec	86.9 mm (3.4 in)	18 December 1995

Period of Record Coverage

1978 to 1978

1 years of record at Tomball, 1978 to 1978. 1 years have data for under 90 percent of days and are left out of rankings: 1978.

Latest Records

Latest records at Tomball
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 2013	Tomball, US	daily rain	54.4 mm (2.1 in)	16.3 mm (0.6 in)	42 years	27 of 100 (Routine)
17 July 2013	Tomball, US	daily rain	30.2 mm (1.2 in)	0.5 mm (0.02 in)	39 years	18 of 100 (Routine)
10 January 2013	Tomball, US	daily rain	52.8 mm (2.1 in)	5.8 mm (0.23 in)	22 years	16 of 100 (Routine)
9 January 2013	Tomball, US	daily rain	29.2 mm (1.1 in)	3.3 mm (0.13 in)	2 years	9 of 100 (Routine)
13 July 2012	Tomball, US	daily rain	121.2 mm (4.8 in)	97.8 mm (3.9 in)	15 years	51 of 100 (Notable)
12 July 2012	Tomball, US	daily rain	118.1 mm (4.6 in)	104.1 mm (4.1 in)	37 years	58 of 100 (Notable)
20 June 2012	Tomball, US	daily rain (Tie)	78.0 mm (3.1 in)	tie	19 years	3 of 100 (Routine)
10 March 2012	Tomball, US	daily rain	18.8 mm (0.7 in)	4.1 mm (0.16 in)	69 years	20 of 100 (Routine)
18 February 2012	Tomball, US	daily rain	48.3 mm (1.9 in)	1.1 mm (0.04 in)	48 years	21 of 100 (Routine)
26 January 2012	Tomball, US	daily rain	70.6 mm (2.8 in)	33.0 mm (1.3 in)	37 years	41 of 100 (Notable)
10 October 2011	Tomball, US	daily rain	75.7 mm (3.0 in)	52.3 mm (2.1 in)	1 year	25 of 100 (Routine)
9 January 2011	Tomball, US	daily rain	25.9 mm (1.0 in)	2.5 mm (0.10 in)	43 years	20 of 100 (Routine)
5 January 2011	Tomball, US	daily rain	29.0 mm (1.1 in)	5.1 mm (0.20 in)	65 years	29 of 100 (Routine)
2 November 2010	Tomball, US	daily rain	59.2 mm (2.3 in)	9.2 mm (0.36 in)	5 years	11 of 100 (Routine)
4 July 2010	Tomball, US	daily rain	44.5 mm (1.8 in)	7.7 mm (0.30 in)	24 years	18 of 100 (Routine)
3 July 2010	Tomball, US	daily rain	67.3 mm (2.6 in)	34.3 mm (1.4 in)	19 years	30 of 100 (Routine)
1 March 2010	Tomball, US	daily rain	22.6 mm (0.9 in)	2.3 mm (0.09 in)	20 years	14 of 100 (Routine)
29 January 2010	Tomball, US	daily rain	34.0 mm (1.3 in)	8.6 mm (0.34 in)	16 years	17 of 100 (Routine)
30 December 2009	Tomball, US	daily rain	49.5 mm (1.9 in)	16.5 mm (0.6 in)	20 years	23 of 100 (Routine)
30 October 2009	Tomball, US	daily rain	78.5 mm (3.1 in)	22.6 mm (0.9 in)	20 years	19 of 100 (Routine)

Extremes by Year

1941 to 2013

Yearly extremes at Tomball: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	-8.3 C (17.1 F)	1978	-8.3 C (17.1 F)	1
Wettest day (Rx1day)	323.9 mm (12.8 in)	2008	84.6 mm (3.3 in)	73
Wettest five days (Rx5day)	420.4 mm (16.6 in)	2008	132.2 mm (5.2 in)	73
Longest dry spell (CDD)	48 days	1980	25 days	73

Hottest day (TXx)

The hottest day of the year at Tomball, 1941 to 2013. The record is -8.3 C (17.1 F) in 1978, marked on the chart; the median year is -8.3 C (17.1 F).

Hottest day (TXx) at Tomball by year
Year	Hottest day (TXx)
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
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	-8.3 C (17.1 F)
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
2011	n/a
2012	n/a
2013	n/a

Wettest day (Rx1day)

The wettest day of the year at Tomball, 1941 to 2013. The record is 323.9 mm (12.8 in) in 2008, marked on the chart; the median year is 84.6 mm (3.3 in).

Wettest day (Rx1day) at Tomball by year
Year	Wettest day (Rx1day)
1941	16.5 mm (0.6 in)
1942	58.9 mm (2.3 in)
1943	157.5 mm (6.2 in)
1944	76.5 mm (3.0 in)
1945	159.5 mm (6.3 in)
1946	111.8 mm (4.4 in)
1947	107.7 mm (4.2 in)
1948	52.1 mm (2.1 in)
1949	169.9 mm (6.7 in)
1950	76.2 mm (3.0 in)
1951	48.0 mm (1.9 in)
1952	40.4 mm (1.6 in)
1953	82.6 mm (3.3 in)
1954	83.8 mm (3.3 in)
1955	49.8 mm (2.0 in)
1956	45.7 mm (1.8 in)
1957	146.6 mm (5.8 in)
1958	71.6 mm (2.8 in)
1959	105.2 mm (4.1 in)
1960	125.5 mm (4.9 in)
1961	145.8 mm (5.7 in)
1962	45.0 mm (1.8 in)
1963	53.3 mm (2.1 in)
1964	73.4 mm (2.9 in)
1965	57.2 mm (2.3 in)
1966	101.6 mm (4.0 in)
1967	118.9 mm (4.7 in)
1968	77.7 mm (3.1 in)
1969	58.4 mm (2.3 in)
1970	85.3 mm (3.4 in)
1971	83.8 mm (3.3 in)
1972	58.4 mm (2.3 in)
1973	76.2 mm (3.0 in)
1974	86.4 mm (3.4 in)
1975	55.6 mm (2.2 in)
1976	45.7 mm (1.8 in)
1977	53.3 mm (2.1 in)
1978	117.3 mm (4.6 in)
1979	173.5 mm (6.8 in)
1980	88.4 mm (3.5 in)
1981	268.5 mm (10.6 in)
1982	127.0 mm (5.0 in)
1983	88.1 mm (3.5 in)
1984	66.8 mm (2.6 in)
1985	217.2 mm (8.6 in)
1986	73.7 mm (2.9 in)
1987	180.3 mm (7.1 in)
1988	50.8 mm (2.0 in)
1989	170.2 mm (6.7 in)
1990	63.0 mm (2.5 in)
1991	80.8 mm (3.2 in)
1992	136.9 mm (5.4 in)
1993	84.6 mm (3.3 in)
1994	162.1 mm (6.4 in)
1995	86.9 mm (3.4 in)
1996	119.9 mm (4.7 in)
1997	78.7 mm (3.1 in)
1998	214.1 mm (8.4 in)
1999	64.8 mm (2.6 in)
2000	154.9 mm (6.1 in)
2001	210.1 mm (8.3 in)
2002	124.5 mm (4.9 in)
2003	84.6 mm (3.3 in)
2004	95.3 mm (3.8 in)
2005	80.3 mm (3.2 in)
2006	189.7 mm (7.5 in)
2007	88.9 mm (3.5 in)
2008	323.9 mm (12.8 in)
2009	127.5 mm (5.0 in)
2010	67.3 mm (2.6 in)
2011	75.7 mm (3.0 in)
2012	121.2 mm (4.8 in)
2013	54.4 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tomball, 1941 to 2013. The record is 420.4 mm (16.6 in) in 2008, marked on the chart; the median year is 132.2 mm (5.2 in).

Wettest five days (Rx5day) at Tomball by year
Year	Wettest five days (Rx5day)
1941	26.7 mm (1.1 in)
1942	97.0 mm (3.8 in)
1943	319.8 mm (12.6 in)
1944	109.2 mm (4.3 in)
1945	164.3 mm (6.5 in)
1946	209.8 mm (8.3 in)
1947	154.9 mm (6.1 in)
1948	72.6 mm (2.9 in)
1949	269.5 mm (10.6 in)
1950	125.8 mm (5.0 in)
1951	87.4 mm (3.4 in)
1952	43.4 mm (1.7 in)
1953	122.9 mm (4.8 in)
1954	119.1 mm (4.7 in)
1955	113.1 mm (4.5 in)
1956	81.7 mm (3.2 in)
1957	184.2 mm (7.3 in)
1958	105.8 mm (4.2 in)
1959	141.9 mm (5.6 in)
1960	222.8 mm (8.8 in)
1961	253.5 mm (10.0 in)
1962	68.4 mm (2.7 in)
1963	83.0 mm (3.3 in)
1964	75.9 mm (3.0 in)
1965	77.0 mm (3.0 in)
1966	105.2 mm (4.1 in)
1967	144.3 mm (5.7 in)
1968	168.4 mm (6.6 in)
1969	103.9 mm (4.1 in)
1970	109.3 mm (4.3 in)
1971	120.9 mm (4.8 in)
1972	99.0 mm (3.9 in)
1973	139.1 mm (5.5 in)
1974	154.2 mm (6.1 in)
1975	73.4 mm (2.9 in)
1976	77.4 mm (3.0 in)
1977	101.4 mm (4.0 in)
1978	174.9 mm (6.9 in)
1979	222.6 mm (8.8 in)
1980	114.6 mm (4.5 in)
1981	325.4 mm (12.8 in)
1982	213.4 mm (8.4 in)
1983	162.3 mm (6.4 in)
1984	130.3 mm (5.1 in)
1985	239.1 mm (9.4 in)
1986	158.1 mm (6.2 in)
1987	192.0 mm (7.6 in)
1988	57.0 mm (2.2 in)
1989	237.6 mm (9.4 in)
1990	79.3 mm (3.1 in)
1991	132.2 mm (5.2 in)
1992	143.5 mm (5.6 in)
1993	147.3 mm (5.8 in)
1994	376.5 mm (14.8 in)
1995	86.9 mm (3.4 in)
1996	133.1 mm (5.2 in)
1997	157.5 mm (6.2 in)
1998	276.5 mm (10.9 in)
1999	112.8 mm (4.4 in)
2000	157.2 mm (6.2 in)
2001	294.0 mm (11.6 in)
2002	149.9 mm (5.9 in)
2003	118.8 mm (4.7 in)
2004	194.1 mm (7.6 in)
2005	98.9 mm (3.9 in)
2006	249.6 mm (9.8 in)
2007	113.0 mm (4.4 in)
2008	420.4 mm (16.6 in)
2009	162.1 mm (6.4 in)
2010	148.1 mm (5.8 in)
2011	81.8 mm (3.2 in)
2012	89.2 mm (3.5 in)
2013	109.2 mm (4.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tomball, 1941 to 2013. The record is 48 days in 1980, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Tomball by year
Year	Longest dry spell (CDD)
1941	18 days
1942	21 days
1943	16 days
1944	34 days
1945	18 days
1946	33 days
1947	33 days
1948	30 days
1949	26 days
1950	32 days
1951	21 days
1952	20 days
1953	45 days
1954	26 days
1955	32 days
1956	25 days
1957	26 days
1958	19 days
1959	17 days
1960	40 days
1961	22 days
1962	27 days
1963	34 days
1964	25 days
1965	28 days
1966	36 days
1967	30 days
1968	18 days
1969	40 days
1970	35 days
1971	28 days
1972	27 days
1973	18 days
1974	27 days
1975	29 days
1976	27 days
1977	20 days
1978	25 days
1979	31 days
1980	48 days
1981	22 days
1982	20 days
1983	28 days
1984	20 days
1985	17 days
1986	24 days
1987	24 days
1988	18 days
1989	24 days
1990	24 days
1991	34 days
1992	15 days
1993	22 days
1994	23 days
1995	18 days
1996	26 days
1997	19 days
1998	38 days
1999	22 days
2000	18 days
2001	33 days
2002	38 days
2003	39 days
2004	18 days
2005	21 days
2006	21 days
2007	25 days
2008	24 days
2009	42 days
2010	36 days
2011	32 days
2012	25 days
2013	17 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

64 years, 1944 to 2012

A day with at least 92.5 mm (3.6 in) of rain is expected about once in 2 years. A day with at least 336.3 mm (13.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Tomball: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	92.5 mm (3.6 in)
5 years	139.0 mm (5.5 in)
10 years	176.2 mm (6.9 in)
25 years	231.9 mm (9.1 in)
50 years	280.7 mm (11.1 in)
100 years	336.3 mm (13.2 in)	Longer than the 64 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, 64 years of values from 1944 to 2012.

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: 323.9 mm (12.8 in) in 2008; 268.5 mm (10.6 in) in 1981; 217.2 mm (8.6 in) in 1985.

Download the Data

Data for Tomball standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Tomball 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).