Biloxi Keesler AFB Weather Records (USW00013820)

Record envelope, standing records and threshold days for Biloxi Keesler AFB (USW00013820), Mississippi, United States, with 78 years of record.

Key Facts for Biloxi Keesler AFB

Biloxi Keesler AFB (USW00013820) is a weather station in Mississippi, United States at 30.42 latitude and -88.92 longitude, 8 m (26 ft) above sea level.
The station reports from 1949 to 2026, 78 years of record.
1,464 records set at Biloxi Keesler AFB still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mississippi, United States, 30.42 latitude, -88.92 longitude.
Elevation: 8 m (26 ft).
Period of record: 1949 to 2026, 78 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

37 days at or beyond a record

The band shows the record high and record low for each calendar day at Biloxi Keesler AFB. The lines show the 2026 daily maximum and minimum. 37 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Biloxi Keesler AFB, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	26.7 C (80.1 F)	-12.2 C (10.0 F)	21.5 C (70.7 F)	-8.2 C (17.2 F)
Feb	26.7 C (80.1 F)	-9.4 C (15.1 F)	24.6 C (76.3 F)	-1.7 C (28.9 F)
Mar	28.3 C (82.9 F)	-2.2 C (28.0 F)	27.2 C (81.0 F)	5.2 C (41.4 F)
Apr	32.2 C (90.0 F)	4.4 C (39.9 F)	29.9 C (85.8 F)	8.4 C (47.1 F)
May	36.1 C (97.0 F)	8.9 C (48.0 F)	32.1 C (89.8 F)	14.7 C (58.5 F)
Jun	38.3 C (100.9 F)	13.9 C (57.0 F)	33.8 C (92.8 F)	21.3 C (70.3 F)
Jul	38.3 C (100.9 F)	20.0 C (68.0 F)	36.5 C (97.7 F)	23.0 C (73.4 F)
Aug	38.3 C (100.9 F)	17.8 C (64.0 F)	35.1 C (95.2 F)	21.7 C (71.1 F)
Sep	36.1 C (97.0 F)	11.7 C (53.1 F)	33.3 C (91.9 F)	19.4 C (66.9 F)
Oct	32.8 C (91.0 F)	2.2 C (36.0 F)	32.7 C (90.9 F)	9.7 C (49.5 F)
Nov	28.9 C (84.0 F)	-3.3 C (26.1 F)	26.7 C (80.1 F)	0.1 C (32.2 F)
Dec	26.1 C (79.0 F)	-11.1 C (12.0 F)	23.1 C (73.6 F)	-2.2 C (28.0 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Biloxi Keesler AFB still stand. 1951 holds the most, with 123.

Standing records at Biloxi Keesler AFB by the year they were set
Year set	Standing records
1949	86
1950	111
1951	123
1952	73
1953	70
1954	80
1955	92
1956	86
1957	77
1958	67
1959	60
1960	60
1961	90
1962	78
1963	98
1964	80
1965	48
1969	1
2025	84

Wettest Day of Each Month

Sep: 259.6 mm (10.2 in)

The wettest day on record for each calendar month at Biloxi Keesler AFB. The most was 259.6 mm (10.2 in) on 18 September 1957.

Record daily precipitation for each month at Biloxi Keesler AFB
Month	Record daily precipitation (mm)	Date
Jan	164.8 mm (6.5 in)	22 January 1965
Feb	75.2 mm (3.0 in)	18 February 1961
Mar	106.7 mm (4.2 in)	18 March 1951
Apr	177.0 mm (7.0 in)	26 April 1964
May	145.8 mm (5.7 in)	21 May 1965
Jun	137.4 mm (5.4 in)	25 June 1970
Jul	165.1 mm (6.5 in)	25 July 1970
Aug	90.4 mm (3.6 in)	15 August 1958
Sep	259.6 mm (10.2 in)	18 September 1957
Oct	75.9 mm (3.0 in)	6 October 1970
Nov	99.3 mm (3.9 in)	13 November 1961
Dec	76.7 mm (3.0 in)	3 December 1955

Period of Record Coverage

1949 to 2025

19 years of record at Biloxi Keesler AFB, 1949 to 2025. 2 years have data for under 90 percent of days and are left out of rankings: 1965, 1969.

Days with data per year at Biloxi Keesler AFB
Year	Days with data	Share of year	Complete
1949	360	99%	Yes
1950	361	99%	Yes
1951	364	100%	Yes
1952	352	96%	Yes
1953	357	98%	Yes
1954	354	97%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	363	99%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	257	70%	No
1969	13	4%	No
2025	357	98%	Yes

Latest Records

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

Climate Trend

17 complete years, 1949 to 2025

One stripe for each of 17 complete years at Biloxi Keesler AFB, 1949 to 2025. Blue stripes are years cooler than the station's own mean of 20.3 C (68.5 F); red stripes are warmer. The coolest year was 1963, at 18.8 C (65.9 F), and the warmest was 2025, at 21.6 C (70.8 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Biloxi Keesler AFB as warming stripes, 1949 to 2025
Year	Annual mean temperature	Difference from the station mean
1949	21.0 C	+0.74 C
1950	20.5 C	+0.18 C
1951	20.5 C	+0.16 C
1952	20.2 C	-0.08 C
1953	20.6 C	+0.33 C
1954	20.5 C	+0.22 C
1955	20.4 C	+0.05 C
1956	20.5 C	+0.19 C
1957	20.9 C	+0.55 C
1958	19.6 C	-0.75 C
1959	20.2 C	-0.14 C
1960	19.8 C	-0.49 C
1961	19.6 C	-0.70 C
1962	20.4 C	+0.07 C
1963	18.8 C	-1.47 C
1964	20.2 C	-0.10 C
2025	21.6 C	+1.25 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 Biloxi Keesler AFB: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.6 C (101.5 F)	2026	36.3 C (97.3 F)	20
Coldest night (TNn)	-12.2 C (10.0 F)	1962	-3.3 C (26.1 F)	20
Wettest day (Rx1day)	259.6 mm (10.2 in)	1957	109.7 mm (4.3 in)	21
Wettest five days (Rx5day)	303.3 mm (11.9 in)	1957	174.0 mm (6.9 in)	21
Longest dry spell (CDD)	38 days	1960	23 days	21

Hottest day (TXx)

The hottest day of the year at Biloxi Keesler AFB, 1949 to 2026. The record is 38.6 C (101.5 F) in 2026, marked on the chart; the median year is 36.3 C (97.3 F).

Hottest day (TXx) at Biloxi Keesler AFB by year
Year	Hottest day (TXx)
1949	36.1 C (97.0 F)
1950	36.7 C (98.1 F)
1951	38.3 C (100.9 F)
1952	38.3 C (100.9 F)
1953	38.3 C (100.9 F)
1954	37.8 C (100.0 F)
1955	35.0 C (95.0 F)
1956	37.2 C (99.0 F)
1957	37.2 C (99.0 F)
1958	35.6 C (96.1 F)
1959	35.0 C (95.0 F)
1960	36.1 C (97.0 F)
1961	34.4 C (93.9 F)
1962	38.3 C (100.9 F)
1963	34.4 C (93.9 F)
1964	36.1 C (97.0 F)
1965	33.9 C (93.0 F)
1966	n/a
1967	n/a
1968	n/a
1969	32.8 C (91.0 F)
1970	n/a
2025	36.5 C (97.7 F)
2026	38.6 C (101.5 F)

Coldest night (TNn)

The coldest night of the year at Biloxi Keesler AFB, 1949 to 2026. The record is -12.2 C (10.0 F) in 1962, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at Biloxi Keesler AFB by year
Year	Coldest night (TNn)
1949	-1.1 C (30.0 F)
1950	-3.3 C (26.1 F)
1951	-9.4 C (15.1 F)
1952	-2.2 C (28.0 F)
1953	-1.1 C (30.0 F)
1954	-1.1 C (30.0 F)
1955	-3.3 C (26.1 F)
1956	-1.1 C (30.0 F)
1957	-3.9 C (25.0 F)
1958	-6.7 C (19.9 F)
1959	-3.3 C (26.1 F)
1960	-3.3 C (26.1 F)
1961	-3.3 C (26.1 F)
1962	-12.2 C (10.0 F)
1963	-12.2 C (10.0 F)
1964	-5.0 C (23.0 F)
1965	-6.1 C (21.0 F)
1966	n/a
1967	n/a
1968	n/a
1969	17.2 C (63.0 F)
1970	n/a
2025	-8.2 C (17.2 F)
2026	-5.8 C (21.6 F)

Wettest day (Rx1day)

The wettest day of the year at Biloxi Keesler AFB, 1949 to 2026. The record is 259.6 mm (10.2 in) in 1957, marked on the chart; the median year is 109.7 mm (4.3 in).

Wettest day (Rx1day) at Biloxi Keesler AFB by year
Year	Wettest day (Rx1day)
1949	108.0 mm (4.3 in)
1950	76.5 mm (3.0 in)
1951	106.7 mm (4.2 in)
1952	84.6 mm (3.3 in)
1953	109.7 mm (4.3 in)
1954	128.0 mm (5.0 in)
1955	147.8 mm (5.8 in)
1956	86.9 mm (3.4 in)
1957	259.6 mm (10.2 in)
1958	119.6 mm (4.7 in)
1959	119.4 mm (4.7 in)
1960	117.3 mm (4.6 in)
1961	131.3 mm (5.2 in)
1962	56.6 mm (2.2 in)
1963	84.8 mm (3.3 in)
1964	177.0 mm (7.0 in)
1965	164.8 mm (6.5 in)
1966	n/a
1967	n/a
1968	71.9 mm (2.8 in)
1969	79.0 mm (3.1 in)
1970	165.1 mm (6.5 in)
2025	n/a
2026	63.7 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Biloxi Keesler AFB, 1949 to 2026. The record is 303.3 mm (11.9 in) in 1957, marked on the chart; the median year is 174.0 mm (6.9 in).

Wettest five days (Rx5day) at Biloxi Keesler AFB by year
Year	Wettest five days (Rx5day)
1949	140.2 mm (5.5 in)
1950	130.9 mm (5.2 in)
1951	187.3 mm (7.4 in)
1952	114.9 mm (4.5 in)
1953	191.1 mm (7.5 in)
1954	152.1 mm (6.0 in)
1955	236.7 mm (9.3 in)
1956	174.0 mm (6.9 in)
1957	303.3 mm (11.9 in)
1958	209.0 mm (8.2 in)
1959	186.2 mm (7.3 in)
1960	165.1 mm (6.5 in)
1961	216.9 mm (8.5 in)
1962	86.9 mm (3.4 in)
1963	124.9 mm (4.9 in)
1964	211.6 mm (8.3 in)
1965	224.6 mm (8.8 in)
1966	n/a
1967	n/a
1968	93.0 mm (3.7 in)
1969	130.0 mm (5.1 in)
1970	238.0 mm (9.4 in)
2025	n/a
2026	68.7 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Biloxi Keesler AFB, 1949 to 2026. The record is 38 days in 1960, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Biloxi Keesler AFB by year
Year	Longest dry spell (CDD)
1949	36 days
1950	25 days
1951	25 days
1952	22 days
1953	33 days
1954	22 days
1955	24 days
1956	36 days
1957	21 days
1958	21 days
1959	19 days
1960	38 days
1961	20 days
1962	34 days
1963	25 days
1964	13 days
1965	23 days
1966	n/a
1967	n/a
1968	8 days
1969	23 days
1970	20 days
2025	n/a
2026	2 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 Biloxi Keesler AFB standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Biloxi Keesler 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 2026-10-16 (16 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).