Ft Sill Post Fld Af Weather Records (USW00013945)

Record envelope, standing records and threshold days for Ft Sill Post Fld Af (USW00013945), Oklahoma, United States, with 78 years of record.

Key Facts for Ft Sill Post Fld Af

Ft Sill Post Fld Af (USW00013945) is a weather station in Oklahoma, United States at 34.65 latitude and -98.40 longitude, 369 m (1,211 ft) above sea level.
The station reports from 1949 to 2026, 78 years of record.
1,464 records set at Ft Sill Post Fld Af still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Oklahoma, United States, 34.65 latitude, -98.40 longitude.
Elevation: 369 m (1,211 ft).
Period of record: 1949 to 2026, 78 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

14 days at or beyond a record

The band shows the record high and record low for each calendar day at Ft Sill Post Fld Af. The lines show the 2026 daily maximum and minimum. 14 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Ft Sill Post Fld Af, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	28.3 C (82.9 F)	-18.3 C (-0.9 F)	20.6 C (69.1 F)	-12.4 C (9.7 F)
Feb	29.4 C (84.9 F)	-16.7 C (1.9 F)	16.3 C (61.3 F)	-14.1 C (6.6 F)
Mar	33.9 C (93.0 F)	-12.2 C (10.0 F)	29.9 C (85.8 F)	3.2 C (37.8 F)
Apr	36.1 C (97.0 F)	-4.4 C (24.1 F)	31.4 C (88.5 F)	4.8 C (40.6 F)
May	40.6 C (105.1 F)	1.7 C (35.1 F)	35.5 C (95.9 F)	12.0 C (53.6 F)
Jun	44.4 C (111.9 F)	10.0 C (50.0 F)	33.7 C (92.7 F)	16.0 C (60.8 F)
Jul	42.8 C (109.0 F)	13.9 C (57.0 F)	39.4 C (102.9 F)	21.3 C (70.3 F)
Aug	42.8 C (109.0 F)	12.2 C (54.0 F)	39.2 C (102.6 F)	18.3 C (64.9 F)
Sep	42.2 C (108.0 F)	6.1 C (43.0 F)	35.9 C (96.6 F)	15.0 C (59.0 F)
Oct	37.8 C (100.0 F)	-3.3 C (26.1 F)	33.0 C (91.4 F)	1.9 C (35.4 F)
Nov	30.0 C (86.0 F)	-10.6 C (12.9 F)	30.0 C (86.0 F)	-1.7 C (28.9 F)
Dec	30.6 C (87.1 F)	-15.0 C (5.0 F)	21.7 C (71.1 F)	-4.7 C (23.5 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ft Sill Post Fld Af still stand. 1953 holds the most, with 94.

Standing records at Ft Sill Post Fld Af by the year they were set
Year set	Standing records
1949	46
1950	91
1951	78
1952	80
1953	94
1954	91
1955	68
1956	87
1957	59
1958	61
1959	63
1960	54
1961	55
1962	61
1963	64
1964	56
1965	54
1966	67
1967	49
1968	41
1969	30
1970	82
2025	33

Wettest Day of Each Month

Oct: 186.2 mm (7.3 in)

The wettest day on record for each calendar month at Ft Sill Post Fld Af. The most was 186.2 mm (7.3 in) on 22 October 1953.

Record daily precipitation for each month at Ft Sill Post Fld Af
Month	Record daily precipitation (mm)	Date
Jan	53.6 mm (2.1 in)	18 January 1968
Feb	34.5 mm (1.4 in)	3 February 1960
Mar	61.5 mm (2.4 in)	6 March 1970
Apr	64.8 mm (2.6 in)	9 April 1967
May	176.3 mm (6.9 in)	17 May 1952
Jun	105.4 mm (4.1 in)	5 June 1953
Jul	89.9 mm (3.5 in)	19 July 1953
Aug	58.7 mm (2.3 in)	18 August 1964
Sep	97.3 mm (3.8 in)	12 September 1961
Oct	186.2 mm (7.3 in)	22 October 1953
Nov	66.0 mm (2.6 in)	3 November 1959
Dec	56.9 mm (2.2 in)	2 December 1953

Period of Record Coverage

1949 to 2025

23 years of record at Ft Sill Post Fld Af, 1949 to 2025. 2 years have data for under 90 percent of days and are left out of rankings: 1969, 2025.

Days with data per year at Ft Sill Post Fld Af
Year	Days with data	Share of year	Complete
1949	360	99%	Yes
1950	365	100%	Yes
1951	364	100%	Yes
1952	364	99%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	364	99%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	362	99%	Yes
1964	365	100%	Yes
1965	363	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	302	83%	No
1970	361	99%	Yes
2025	181	50%	No

Latest Records

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

Climate Trend

21 complete years, 1949 to 1970

One stripe for each of 21 complete years at Ft Sill Post Fld Af, 1949 to 1970. Blue stripes are years cooler than the station's own mean of 16.5 C (61.8 F); red stripes are warmer. The coolest year was 1961, at 15.6 C (60.0 F), and the warmest was 1954, at 18.2 C (64.7 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Ft Sill Post Fld Af as warming stripes, 1949 to 1970
Year	Annual mean temperature	Difference from the station mean
1949	16.0 C	-0.59 C
1950	16.3 C	-0.28 C
1951	16.4 C	-0.13 C
1952	17.1 C	+0.58 C
1953	17.6 C	+1.01 C
1954	18.2 C	+1.65 C
1955	16.6 C	+0.10 C
1956	17.4 C	+0.86 C
1957	16.1 C	-0.45 C
1958	16.1 C	-0.44 C
1959	16.2 C	-0.33 C
1960	16.1 C	-0.46 C
1961	15.6 C	-0.96 C
1962	16.2 C	-0.35 C
1963	17.2 C	+0.65 C
1964	16.4 C	-0.15 C
1965	16.7 C	+0.18 C
1966	15.9 C	-0.61 C
1967	16.9 C	+0.34 C
1968	15.8 C	-0.79 C
1970	16.8 C	+0.21 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 Ft Sill Post Fld Af: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.4 C (111.9 F)	1953	40.9 C (105.5 F)	24
Coldest night (TNn)	-18.3 C (-0.9 F)	1962	-13.0 C (8.5 F)	24
Wettest day (Rx1day)	186.2 mm (7.3 in)	1953	72.9 mm (2.9 in)	23
Wettest five days (Rx5day)	246.7 mm (9.7 in)	1951	116.5 mm (4.6 in)	22
Longest dry spell (CDD)	103 days	1950	37 days	23

Hottest day (TXx)

The hottest day of the year at Ft Sill Post Fld Af, 1949 to 2026. The record is 44.4 C (111.9 F) in 1953, marked on the chart; the median year is 40.9 C (105.5 F).

Hottest day (TXx) at Ft Sill Post Fld Af by year
Year	Hottest day (TXx)
1949	39.4 C (102.9 F)
1950	36.7 C (98.1 F)
1951	42.2 C (108.0 F)
1952	42.2 C (108.0 F)
1953	44.4 C (111.9 F)
1954	42.8 C (109.0 F)
1955	38.9 C (102.0 F)
1956	42.8 C (109.0 F)
1957	41.1 C (106.0 F)
1958	40.6 C (105.1 F)
1959	38.9 C (102.0 F)
1960	40.0 C (104.0 F)
1961	38.9 C (102.0 F)
1962	42.2 C (108.0 F)
1963	40.6 C (105.1 F)
1964	42.8 C (109.0 F)
1965	39.4 C (102.9 F)
1966	41.7 C (107.1 F)
1967	40.0 C (104.0 F)
1968	38.9 C (102.0 F)
1969	41.1 C (106.0 F)
1970	42.2 C (108.0 F)
2025	39.4 C (102.9 F)
2026	43.2 C (109.8 F)

Coldest night (TNn)

The coldest night of the year at Ft Sill Post Fld Af, 1949 to 2026. The record is -18.3 C (-0.9 F) in 1962, marked on the chart; the median year is -13.0 C (8.5 F).

Coldest night (TNn) at Ft Sill Post Fld Af by year
Year	Coldest night (TNn)
1949	-14.4 C (6.1 F)
1950	-15.0 C (5.0 F)
1951	-16.7 C (1.9 F)
1952	-8.3 C (17.1 F)
1953	-13.3 C (8.1 F)
1954	-12.8 C (9.0 F)
1955	-10.6 C (12.9 F)
1956	-10.0 C (14.0 F)
1957	-10.0 C (14.0 F)
1958	-13.9 C (7.0 F)
1959	-17.8 C (0.0 F)
1960	-12.2 C (10.0 F)
1961	-12.2 C (10.0 F)
1962	-18.3 C (-0.9 F)
1963	-16.7 C (1.9 F)
1964	-13.3 C (8.1 F)
1965	-11.7 C (10.9 F)
1966	-17.8 C (0.0 F)
1967	-10.6 C (12.9 F)
1968	-14.4 C (6.1 F)
1969	-10.0 C (14.0 F)
1970	-11.7 C (10.9 F)
2025	-14.1 C (6.6 F)
2026	-10.4 C (13.3 F)

Wettest day (Rx1day)

The wettest day of the year at Ft Sill Post Fld Af, 1949 to 2026. The record is 186.2 mm (7.3 in) in 1953, marked on the chart; the median year is 72.9 mm (2.9 in).

Wettest day (Rx1day) at Ft Sill Post Fld Af by year
Year	Wettest day (Rx1day)
1949	47.2 mm (1.9 in)
1950	88.1 mm (3.5 in)
1951	152.7 mm (6.0 in)
1952	176.3 mm (6.9 in)
1953	186.2 mm (7.3 in)
1954	87.9 mm (3.5 in)
1955	97.3 mm (3.8 in)
1956	37.8 mm (1.5 in)
1957	102.4 mm (4.0 in)
1958	35.1 mm (1.4 in)
1959	72.9 mm (2.9 in)
1960	125.7 mm (4.9 in)
1961	97.3 mm (3.8 in)
1962	82.3 mm (3.2 in)
1963	64.0 mm (2.5 in)
1964	58.7 mm (2.3 in)
1965	60.2 mm (2.4 in)
1966	64.0 mm (2.5 in)
1967	88.6 mm (3.5 in)
1968	63.0 mm (2.5 in)
1969	72.4 mm (2.9 in)
1970	68.6 mm (2.7 in)
2025	n/a
2026	8.9 mm (0.35 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ft Sill Post Fld Af, 1949 to 2026. The record is 246.7 mm (9.7 in) in 1951, marked on the chart; the median year is 116.5 mm (4.6 in).

Wettest five days (Rx5day) at Ft Sill Post Fld Af by year
Year	Wettest five days (Rx5day)
1949	89.9 mm (3.5 in)
1950	101.8 mm (4.0 in)
1951	246.7 mm (9.7 in)
1952	194.1 mm (7.6 in)
1953	227.1 mm (8.9 in)
1954	138.9 mm (5.5 in)
1955	148.8 mm (5.9 in)
1956	77.5 mm (3.1 in)
1957	126.6 mm (5.0 in)
1958	73.4 mm (2.9 in)
1959	143.7 mm (5.7 in)
1960	133.6 mm (5.3 in)
1961	115.3 mm (4.5 in)
1962	119.7 mm (4.7 in)
1963	95.0 mm (3.7 in)
1964	78.2 mm (3.1 in)
1965	82.5 mm (3.2 in)
1966	117.6 mm (4.6 in)
1967	119.4 mm (4.7 in)
1968	84.9 mm (3.3 in)
1969	102.6 mm (4.0 in)
1970	68.6 mm (2.7 in)
2025	n/a
2026	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Ft Sill Post Fld Af, 1949 to 2026. The record is 103 days in 1950, marked on the chart; the median year is 37 days.

Longest dry spell (CDD) at Ft Sill Post Fld Af by year
Year	Longest dry spell (CDD)
1949	38 days
1950	103 days
1951	37 days
1952	68 days
1953	29 days
1954	37 days
1955	87 days
1956	54 days
1957	27 days
1958	33 days
1959	46 days
1960	24 days
1961	24 days
1962	35 days
1963	42 days
1964	31 days
1965	43 days
1966	39 days
1967	45 days
1968	20 days
1969	34 days
1970	35 days
2025	n/a
2026	3 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.

Frost Dates and Growing Season

21 years with a frost

Across 21 years with a frost, the median last spring frost at Ft Sill Post Fld Af falls on 24 March and the median first autumn frost on 8 November, which leaves a median of 228 days between them.

Frost dates and growing season at Ft Sill Post Fld Af
Measure	Median, all years	Earliest period	Recent period (1949 to 1970)	Recent against earliest	Fitted trend
Last spring frost	24 March	n/a	24 March	n/a	n/a
First autumn frost	8 November	n/a	8 November	n/a	n/a
Growing days	228 days	n/a	228 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Download the Data

Data for Ft Sill Post Fld Af standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ft Sill Post Fld Af 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).