Waco J Connally AFB Weather Records (USW00013928)

Record envelope, standing records and threshold days for Waco J Connally AFB (USW00013928), Texas, United States, with 78 years of record.

Key Facts for Waco J Connally AFB

Waco J Connally AFB (USW00013928) is a weather station in Texas, United States at 31.63 latitude and -97.07 longitude, 153 m (502 ft) above sea level.
The station reports from 1949 to 2026, 78 years of record.
1,464 records set at Waco J Connally AFB 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, 31.63 latitude, -97.07 longitude.
Elevation: 153 m (502 ft).
Period of record: 1949 to 2026, 78 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

13 days at or beyond a record

The band shows the record high and record low for each calendar day at Waco J Connally AFB. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Waco J Connally AFB, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	28.9 C (84.0 F)	-21.7 C (-7.1 F)	n/a	n/a
Feb	32.2 C (90.0 F)	-13.9 C (7.0 F)	8.0 C (46.4 F)	7.0 C (44.6 F)
Mar	33.9 C (93.0 F)	-5.6 C (21.9 F)	30.0 C (86.0 F)	3.0 C (37.4 F)
Apr	36.7 C (98.1 F)	0.6 C (33.1 F)	31.0 C (87.8 F)	3.0 C (37.4 F)
May	37.2 C (99.0 F)	6.1 C (43.0 F)	34.0 C (93.2 F)	9.0 C (48.2 F)
Jun	38.9 C (102.0 F)	12.2 C (54.0 F)	34.0 C (93.2 F)	19.0 C (66.2 F)
Jul	42.8 C (109.0 F)	18.9 C (66.0 F)	37.0 C (98.6 F)	19.0 C (66.2 F)
Aug	41.7 C (107.1 F)	15.0 C (59.0 F)	37.0 C (98.6 F)	20.0 C (68.0 F)
Sep	40.6 C (105.1 F)	9.4 C (48.9 F)	35.0 C (95.0 F)	14.0 C (57.2 F)
Oct	35.6 C (96.1 F)	1.7 C (35.1 F)	33.0 C (91.4 F)	10.0 C (50.0 F)
Nov	31.7 C (89.1 F)	-6.7 C (19.9 F)	n/a	n/a
Dec	29.4 C (84.9 F)	-10.6 C (12.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Waco J Connally AFB still stand. 1951 holds the most, with 138.

Standing records at Waco J Connally AFB by the year they were set
Year set	Standing records
1949	65
1950	102
1951	138
1952	106
1953	91
1954	98
1955	95
1956	83
1957	74
1958	54
1959	69
1960	63
1961	110
1962	52
1963	82
1964	66
1965	52
1966	22
2025	42

Wettest Day of Each Month

Aug: 211.1 mm (8.3 in)

The wettest day on record for each calendar month at Waco J Connally AFB. The most was 211.1 mm (8.3 in) on 24 August 1958.

Record daily precipitation for each month at Waco J Connally AFB
Month	Record daily precipitation (mm)	Date
Jan	61.0 mm (2.4 in)	21 January 1965
Feb	51.1 mm (2.0 in)	19 February 1955
Mar	64.0 mm (2.5 in)	20 March 1957
Apr	82.8 mm (3.3 in)	24 April 1966
May	115.1 mm (4.5 in)	12 May 1953
Jun	78.7 mm (3.1 in)	15 June 1961
Jul	71.9 mm (2.8 in)	25 July 1951
Aug	211.1 mm (8.3 in)	24 August 1958
Sep	124.2 mm (4.9 in)	22 September 1957
Oct	98.0 mm (3.9 in)	4 October 1959
Nov	88.4 mm (3.5 in)	23 November 1952
Dec	66.3 mm (2.6 in)	7 December 1960

Period of Record Coverage

1949 to 2025

19 years of record at Waco J Connally AFB, 1949 to 2025. 2 years have data for under 90 percent of days and are left out of rankings: 1966, 2025.

Days with data per year at Waco J Connally AFB
Year	Days with data	Share of year	Complete
1949	356	98%	Yes
1950	363	99%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	364	100%	Yes
1956	364	99%	Yes
1957	362	99%	Yes
1958	364	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	364	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	364	99%	Yes
1965	362	99%	Yes
1966	179	49%	No
2025	219	60%	No

Latest Records

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

Climate Trend

17 complete years, 1949 to 1965

One stripe for each of 17 complete years at Waco J Connally AFB, 1949 to 1965. Blue stripes are years cooler than the station's own mean of 19.5 C (67.0 F); red stripes are warmer. The coolest year was 1961, at 18.2 C (64.7 F), and the warmest was 1956, at 20.7 C (69.3 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Waco J Connally AFB as warming stripes, 1949 to 1965
Year	Annual mean temperature	Difference from the station mean
1949	19.2 C	-0.24 C
1950	19.6 C	+0.19 C
1951	19.9 C	+0.44 C
1952	19.7 C	+0.29 C
1953	19.7 C	+0.22 C
1954	20.7 C	+1.23 C
1955	19.9 C	+0.48 C
1956	20.7 C	+1.27 C
1957	19.7 C	+0.27 C
1958	19.0 C	-0.46 C
1959	19.1 C	-0.39 C
1960	19.0 C	-0.43 C
1961	18.2 C	-1.26 C
1962	19.1 C	-0.38 C
1963	19.3 C	-0.13 C
1964	18.8 C	-0.65 C
1965	19.0 C	-0.45 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

1949 to 2026

Yearly extremes at Waco J Connally AFB: 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)	1954	40.3 C (104.5 F)	20
Coldest night (TNn)	-21.7 C (-7.1 F)	1949	-7.5 C (18.5 F)	20
Wettest day (Rx1day)	211.1 mm (8.3 in)	1958	71.9 mm (2.8 in)	19
Wettest five days (Rx5day)	286.6 mm (11.3 in)	1953	122.5 mm (4.8 in)	18
Longest dry spell (CDD)	57 days	1964	39 days	19

Hottest day (TXx)

The hottest day of the year at Waco J Connally AFB, 1949 to 2026. The record is 42.8 C (109.0 F) in 1954, marked on the chart; the median year is 40.3 C (104.5 F).

Hottest day (TXx) at Waco J Connally AFB by year
Year	Hottest day (TXx)
1949	39.4 C (102.9 F)
1950	38.3 C (100.9 F)
1951	41.7 C (107.1 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	40.0 C (104.0 F)
1957	41.7 C (107.1 F)
1958	40.6 C (105.1 F)
1959	38.3 C (100.9 F)
1960	40.0 C (104.0 F)
1961	38.3 C (100.9 F)
1962	41.7 C (107.1 F)
1963	39.4 C (102.9 F)
1964	41.1 C (106.0 F)
1965	40.6 C (105.1 F)
1966	34.4 C (93.9 F)
1967	n/a
1968	n/a
2025	37.0 C (98.6 F)
2026	42.0 C (107.6 F)

Coldest night (TNn)

The coldest night of the year at Waco J Connally AFB, 1949 to 2026. The record is -21.7 C (-7.1 F) in 1949, marked on the chart; the median year is -7.5 C (18.5 F).

Coldest night (TNn) at Waco J Connally AFB by year
Year	Coldest night (TNn)
1949	-21.7 C (-7.1 F)
1950	-10.6 C (12.9 F)
1951	-13.9 C (7.0 F)
1952	-3.3 C (26.1 F)
1953	-6.7 C (19.9 F)
1954	-7.8 C (18.0 F)
1955	-6.7 C (19.9 F)
1956	-5.6 C (21.9 F)
1957	-7.2 C (19.0 F)
1958	-6.7 C (19.9 F)
1959	-11.1 C (12.0 F)
1960	-6.1 C (21.0 F)
1961	-7.8 C (18.0 F)
1962	-11.7 C (10.9 F)
1963	-12.2 C (10.0 F)
1964	-12.8 C (9.0 F)
1965	-7.2 C (19.0 F)
1966	-11.1 C (12.0 F)
1967	n/a
1968	n/a
2025	3.0 C (37.4 F)
2026	6.0 C (42.8 F)

Wettest day (Rx1day)

The wettest day of the year at Waco J Connally AFB, 1949 to 2026. The record is 211.1 mm (8.3 in) in 1958, marked on the chart; the median year is 71.9 mm (2.8 in).

Wettest day (Rx1day) at Waco J Connally AFB by year
Year	Wettest day (Rx1day)
1949	51.1 mm (2.0 in)
1950	51.1 mm (2.0 in)
1951	71.9 mm (2.8 in)
1952	88.4 mm (3.5 in)
1953	115.1 mm (4.5 in)
1954	54.1 mm (2.1 in)
1955	51.1 mm (2.0 in)
1956	93.7 mm (3.7 in)
1957	124.2 mm (4.9 in)
1958	211.1 mm (8.3 in)
1959	98.0 mm (3.9 in)
1960	66.3 mm (2.6 in)
1961	78.7 mm (3.1 in)
1962	62.5 mm (2.5 in)
1963	46.5 mm (1.8 in)
1964	43.2 mm (1.7 in)
1965	101.9 mm (4.0 in)
1966	82.8 mm (3.3 in)
1967	n/a
1968	n/a
2025	n/a
2026	1.3 mm (0.05 in)

Wettest five days (Rx5day)

The wettest five days of the year at Waco J Connally AFB, 1949 to 2026. The record is 286.6 mm (11.3 in) in 1953, marked on the chart; the median year is 122.5 mm (4.8 in).

Wettest five days (Rx5day) at Waco J Connally AFB by year
Year	Wettest five days (Rx5day)
1949	89.9 mm (3.5 in)
1950	90.0 mm (3.5 in)
1951	110.0 mm (4.3 in)
1952	133.6 mm (5.3 in)
1953	286.6 mm (11.3 in)
1954	76.5 mm (3.0 in)
1955	76.8 mm (3.0 in)
1956	113.1 mm (4.5 in)
1957	211.0 mm (8.3 in)
1958	247.2 mm (9.7 in)
1959	131.9 mm (5.2 in)
1960	160.0 mm (6.3 in)
1961	212.3 mm (8.4 in)
1962	98.8 mm (3.9 in)
1963	53.0 mm (2.1 in)
1964	62.8 mm (2.5 in)
1965	191.8 mm (7.6 in)
1966	167.4 mm (6.6 in)
1967	n/a
1968	n/a
2025	n/a
2026	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Waco J Connally AFB, 1949 to 2026. The record is 57 days in 1964, marked on the chart; the median year is 39 days.

Longest dry spell (CDD) at Waco J Connally AFB by year
Year	Longest dry spell (CDD)
1949	39 days
1950	43 days
1951	39 days
1952	47 days
1953	44 days
1954	44 days
1955	32 days
1956	44 days
1957	39 days
1958	27 days
1959	25 days
1960	29 days
1961	24 days
1962	36 days
1963	41 days
1964	57 days
1965	23 days
1966	19 days
1967	n/a
1968	n/a
2025	n/a
2026	1 day

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 Waco J Connally AFB standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Waco J Connally AFB 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 2026-10-15 (15 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).