Robert Gray AAF Weather Records (USW00003902)

Record envelope, standing records and threshold days for Robert Gray AAF (USW00003902), Texas, United States, with 77 years of record.

Key Facts for Robert Gray AAF

Robert Gray AAF (USW00003902) is a weather station in Texas, United States at 31.07 latitude and -97.83 longitude, 309 m (1,015 ft) above sea level.
The station reports from 1950 to 2026, 77 years of record.
1,464 records set at Robert Gray AAF still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Texas, United States, 31.07 latitude, -97.83 longitude.
Elevation: 309 m (1,015 ft).
Period of record: 1950 to 2026, 77 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

42 days at or beyond a record

The band shows the record high and record low for each calendar day at Robert Gray AAF. The lines show the 2026 daily maximum and minimum. 42 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Robert Gray AAF, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	29.4 C (84.9 F)	-11.7 C (10.9 F)	23.3 C (73.9 F)	-8.3 C (17.1 F)
Feb	37.8 C (100.0 F)	-12.8 C (9.0 F)	32.8 C (91.0 F)	-9.3 C (15.3 F)
Mar	41.1 C (106.0 F)	-7.7 C (18.1 F)	33.3 C (91.9 F)	3.3 C (37.9 F)
Apr	43.3 C (109.9 F)	0.0 C (32.0 F)	33.3 C (91.9 F)	3.3 C (37.9 F)
May	41.7 C (107.1 F)	5.6 C (42.1 F)	37.2 C (99.0 F)	10.6 C (51.1 F)
Jun	42.8 C (109.0 F)	13.3 C (55.9 F)	35.6 C (96.1 F)	20.0 C (68.0 F)
Jul	42.8 C (109.0 F)	17.2 C (63.0 F)	37.8 C (100.0 F)	20.6 C (69.1 F)
Aug	42.2 C (108.0 F)	17.8 C (64.0 F)	37.8 C (100.0 F)	20.6 C (69.1 F)
Sep	41.7 C (107.1 F)	12.2 C (54.0 F)	37.8 C (100.0 F)	15.6 C (60.1 F)
Oct	38.3 C (100.9 F)	1.1 C (34.0 F)	34.4 C (93.9 F)	6.1 C (43.0 F)
Nov	31.7 C (89.1 F)	-5.6 C (21.9 F)	30.6 C (87.1 F)	2.2 C (36.0 F)
Dec	31.7 C (89.1 F)	-11.6 C (11.1 F)	30.0 C (86.0 F)	-1.7 C (28.9 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Robert Gray AAF still stand. 2011 holds the most, with 143.

Standing records at Robert Gray AAF by the year they were set
Year set	Standing records
1950	18
1951	80
1952	64
1953	55
1954	51
1955	58
1956	51
1957	67
1958	52
1959	60
1960	58
1970	35
2006	31
2007	48
2008	40
2009	99
2010	71
2011	143
2012	49
2013	58
2014	43
2022	47
2023	69
2024	55
2025	62

Wettest Day of Each Month

Sep: 158.2 mm (6.2 in)

The wettest day on record for each calendar month at Robert Gray AAF. The most was 158.2 mm (6.2 in) on 7 September 2010.

Record daily precipitation for each month at Robert Gray AAF
Month	Record daily precipitation (mm)	Date
Jan	40.1 mm (1.6 in)	9 January 2013
Feb	103.9 mm (4.1 in)	22 February 1958
Mar	74.2 mm (2.9 in)	26 March 1951
Apr	93.5 mm (3.7 in)	26 April 1957
May	123.4 mm (4.9 in)	11 May 2011
Jun	95.8 mm (3.8 in)	21 June 1958
Jul	78.0 mm (3.1 in)	15 July 2013
Aug	110.0 mm (4.3 in)	27 August 1959
Sep	158.2 mm (6.2 in)	7 September 2010
Oct	131.1 mm (5.2 in)	4 October 1959
Nov	45.2 mm (1.8 in)	23 November 1952
Dec	48.3 mm (1.9 in)	24 December 2023

Period of Record Coverage

1950 to 2025

28 years of record at Robert Gray AAF, 1950 to 2025. 11 years have data for under 90 percent of days and are left out of rankings: 1950, 1960, 1963, 1964, 1965, 1970, 2006, 2008 and others.

Days with data per year at Robert Gray AAF
Year	Days with data	Share of year	Complete
1950	96	26%	No
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	362	99%	Yes
1955	365	100%	Yes
1956	363	99%	Yes
1957	361	99%	Yes
1958	364	100%	Yes
1959	363	99%	Yes
1960	256	70%	No
1963	9	2%	No
1964	3	1%	No
1965	7	2%	No
1970	193	53%	No
2006	210	58%	No
2007	359	98%	Yes
2008	321	88%	No
2009	356	98%	Yes
2010	326	89%	No
2011	331	91%	Yes
2012	335	92%	Yes
2013	341	93%	Yes
2014	236	65%	No
2022	245	67%	No
2023	365	100%	Yes
2024	365	100%	Yes
2025	363	99%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

17 complete years, 1951 to 2025

One stripe for each of 17 complete years at Robert Gray AAF, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 20.4 C (68.6 F); red stripes are warmer. The coolest year was 1959, at 18.5 C (65.3 F), and the warmest was 2011, at 22.6 C (72.7 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Robert Gray AAF as warming stripes, 1951 to 2025
Year	Annual mean temperature	Difference from the station mean
1951	19.9 C	-0.41 C
1952	19.7 C	-0.62 C
1953	20.0 C	-0.31 C
1954	21.0 C	+0.61 C
1955	19.9 C	-0.42 C
1956	20.7 C	+0.34 C
1957	19.3 C	-1.02 C
1958	18.7 C	-1.63 C
1959	18.5 C	-1.84 C
2007	19.2 C	-1.17 C
2009	21.3 C	+0.97 C
2011	22.6 C	+2.28 C
2012	21.3 C	+0.96 C
2013	19.7 C	-0.67 C
2023	21.1 C	+0.74 C
2024	21.8 C	+1.47 C
2025	21.1 C	+0.77 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 Robert Gray AAF: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	2011	40.0 C (104.0 F)	29
Coldest night (TNn)	-12.8 C (9.0 F)	1951	-6.7 C (19.9 F)	29
Wettest day (Rx1day)	158.2 mm (6.2 in)	2010	58.4 mm (2.3 in)	29
Wettest five days (Rx5day)	253.6 mm (10.0 in)	1957	87.9 mm (3.5 in)	29
Longest dry spell (CDD)	71 days	2023	37 days	29

Hottest day (TXx)

The hottest day of the year at Robert Gray AAF, 1950 to 2026. The record is 43.3 C (109.9 F) in 2011, marked on the chart; the median year is 40.0 C (104.0 F).

Hottest day (TXx) at Robert Gray AAF by year
Year	Hottest day (TXx)
1950	32.2 C (90.0 F)
1951	40.0 C (104.0 F)
1952	40.6 C (105.1 F)
1953	40.6 C (105.1 F)
1954	42.8 C (109.0 F)
1955	38.9 C (102.0 F)
1956	42.8 C (109.0 F)
1957	40.6 C (105.1 F)
1958	38.3 C (100.9 F)
1959	37.8 C (100.0 F)
1960	38.9 C (102.0 F)
1961	n/a
1963	26.1 C (79.0 F)
1964	25.0 C (77.0 F)
1965	29.4 C (84.9 F)
1966	n/a
1968	n/a
1969	n/a
1970	37.8 C (100.0 F)
2006	38.9 C (102.0 F)
2007	36.7 C (98.1 F)
2008	40.0 C (104.0 F)
2009	42.8 C (109.0 F)
2010	41.1 C (106.0 F)
2011	43.3 C (109.9 F)
2012	41.1 C (106.0 F)
2013	40.6 C (105.1 F)
2014	38.3 C (100.9 F)
2021	n/a
2022	41.7 C (107.1 F)
2023	42.2 C (108.0 F)
2024	42.2 C (108.0 F)
2025	37.8 C (100.0 F)
2026	41.1 C (106.0 F)

Coldest night (TNn)

The coldest night of the year at Robert Gray AAF, 1950 to 2026. The record is -12.8 C (9.0 F) in 1951, marked on the chart; the median year is -6.7 C (19.9 F).

Coldest night (TNn) at Robert Gray AAF by year
Year	Coldest night (TNn)
1950	-10.0 C (14.0 F)
1951	-12.8 C (9.0 F)
1952	-4.4 C (24.1 F)
1953	-6.1 C (21.0 F)
1954	-7.2 C (19.0 F)
1955	-5.0 C (23.0 F)
1956	-3.9 C (25.0 F)
1957	-6.7 C (19.9 F)
1958	-7.2 C (19.0 F)
1959	-11.7 C (10.9 F)
1960	-7.2 C (19.0 F)
1961	n/a
1963	5.6 C (42.1 F)
1964	15.0 C (59.0 F)
1965	12.8 C (55.0 F)
1966	n/a
1968	n/a
1969	n/a
1970	-2.8 C (27.0 F)
2006	-4.9 C (23.2 F)
2007	-8.2 C (17.2 F)
2008	-4.3 C (24.3 F)
2009	-5.5 C (22.1 F)
2010	-8.2 C (17.2 F)
2011	-8.8 C (16.2 F)
2012	-5.5 C (22.1 F)
2013	-6.0 C (21.2 F)
2014	-8.8 C (16.2 F)
2021	n/a
2022	-11.6 C (11.1 F)
2023	-3.2 C (26.2 F)
2024	-9.9 C (14.2 F)
2025	-9.3 C (15.3 F)
2026	-9.4 C (15.1 F)

Wettest day (Rx1day)

The wettest day of the year at Robert Gray AAF, 1950 to 2026. The record is 158.2 mm (6.2 in) in 2010, marked on the chart; the median year is 58.4 mm (2.3 in).

Wettest day (Rx1day) at Robert Gray AAF by year
Year	Wettest day (Rx1day)
1950	48.8 mm (1.9 in)
1951	74.2 mm (2.9 in)
1952	48.0 mm (1.9 in)
1953	114.3 mm (4.5 in)
1954	36.8 mm (1.4 in)
1955	33.5 mm (1.3 in)
1956	47.2 mm (1.9 in)
1957	111.0 mm (4.4 in)
1958	103.9 mm (4.1 in)
1959	131.1 mm (5.2 in)
1960	54.4 mm (2.1 in)
1961	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1968	28.4 mm (1.1 in)
1969	60.5 mm (2.4 in)
1970	45.0 mm (1.8 in)
2006	47.2 mm (1.9 in)
2007	115.3 mm (4.5 in)
2008	30.2 mm (1.2 in)
2009	80.3 mm (3.2 in)
2010	158.2 mm (6.2 in)
2011	123.4 mm (4.9 in)
2012	55.9 mm (2.2 in)
2013	78.0 mm (3.1 in)
2014	71.9 mm (2.8 in)
2021	0.0 mm (0.00 in)
2022	52.1 mm (2.1 in)
2023	53.1 mm (2.1 in)
2024	58.4 mm (2.3 in)
2025	75.4 mm (3.0 in)
2026	70.1 mm (2.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Robert Gray AAF, 1950 to 2026. The record is 253.6 mm (10.0 in) in 1957, marked on the chart; the median year is 87.9 mm (3.5 in).

Wettest five days (Rx5day) at Robert Gray AAF by year
Year	Wettest five days (Rx5day)
1950	48.8 mm (1.9 in)
1951	80.3 mm (3.2 in)
1952	97.8 mm (3.9 in)
1953	187.0 mm (7.4 in)
1954	45.5 mm (1.8 in)
1955	58.4 mm (2.3 in)
1956	72.5 mm (2.9 in)
1957	253.6 mm (10.0 in)
1958	149.2 mm (5.9 in)
1959	169.0 mm (6.7 in)
1960	113.8 mm (4.5 in)
1961	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1968	28.4 mm (1.1 in)
1969	90.4 mm (3.6 in)
1970	55.7 mm (2.2 in)
2006	54.6 mm (2.1 in)
2007	236.7 mm (9.3 in)
2008	37.1 mm (1.5 in)
2009	134.2 mm (5.3 in)
2010	218.1 mm (8.6 in)
2011	141.2 mm (5.6 in)
2012	72.2 mm (2.8 in)
2013	127.8 mm (5.0 in)
2014	112.8 mm (4.4 in)
2021	0.0 mm (0.00 in)
2022	64.3 mm (2.5 in)
2023	87.9 mm (3.5 in)
2024	88.4 mm (3.5 in)
2025	83.1 mm (3.3 in)
2026	85.3 mm (3.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Robert Gray AAF, 1950 to 2026. The record is 71 days in 2023, marked on the chart; the median year is 37 days.

Longest dry spell (CDD) at Robert Gray AAF by year
Year	Longest dry spell (CDD)
1950	44 days
1951	62 days
1952	47 days
1953	43 days
1954	42 days
1955	30 days
1956	56 days
1957	37 days
1958	46 days
1959	26 days
1960	30 days
1961	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1968	7 days
1969	6 days
1970	48 days
2006	55 days
2007	37 days
2008	27 days
2009	28 days
2010	46 days
2011	29 days
2012	29 days
2013	19 days
2014	29 days
2021	14 days
2022	42 days
2023	71 days
2024	57 days
2025	29 days
2026	25 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.

Download the Data

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