Billings 1SW Weather Records (USC00230657)

Record envelope, standing records and threshold days for Billings 1SW (USC00230657), Missouri, United States, with 65 years of record.

Key Facts for Billings 1SW

Billings 1SW (USC00230657) is a weather station in Missouri, United States at 37.05 latitude and -93.58 longitude, 399 m (1,310 ft) above sea level.
The station reports from 1962 to 2026, 65 years of record.
1,464 records set at Billings 1SW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Billings 1SW set a daily record high maximum temperature of 32.8 C (91.0 F) on 9 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Missouri, United States, 37.05 latitude, -93.58 longitude.
Elevation: 399 m (1,310 ft).
Period of record: 1962 to 2026, 65 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

33 days at or beyond a record

The band shows the record high and record low for each calendar day at Billings 1SW. The lines show the 2026 daily maximum and minimum. 33 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Billings 1SW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	22.8 C (73.0 F)	-27.2 C (-17.0 F)	20.6 C (69.1 F)	-23.9 C (-11.0 F)
Feb	28.3 C (82.9 F)	-28.9 C (-20.0 F)	24.4 C (75.9 F)	-19.4 C (-2.9 F)
Mar	32.2 C (90.0 F)	-18.3 C (-0.9 F)	32.2 C (90.0 F)	-9.4 C (15.1 F)
Apr	35.0 C (95.0 F)	-9.4 C (15.1 F)	28.9 C (84.0 F)	0.0 C (32.0 F)
May	34.4 C (93.9 F)	-1.7 C (28.9 F)	31.1 C (88.0 F)	2.2 C (36.0 F)
Jun	39.4 C (102.9 F)	5.0 C (41.0 F)	32.2 C (90.0 F)	13.3 C (55.9 F)
Jul	42.8 C (109.0 F)	8.3 C (46.9 F)	37.2 C (99.0 F)	17.2 C (63.0 F)
Aug	42.8 C (109.0 F)	6.7 C (44.1 F)	38.9 C (102.0 F)	14.4 C (57.9 F)
Sep	40.0 C (104.0 F)	1.7 C (35.1 F)	38.9 C (102.0 F)	11.7 C (53.1 F)
Oct	34.4 C (93.9 F)	-8.3 C (17.1 F)	32.8 C (91.0 F)	8.3 C (46.9 F)
Nov	30.0 C (86.0 F)	-16.1 C (3.0 F)	n/a	n/a
Dec	25.6 C (78.1 F)	-26.1 C (-15.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Billings 1SW still stand. 1980 holds the most, with 60.

Standing records at Billings 1SW by the year they were set
Year set	Standing records
1962	18
1963	34
1964	23
1965	24
1966	24
1967	4
1968	2
1969	5
1970	20
1971	17
1972	25
1973	11
1974	39
1975	16
1976	36
1977	17
1978	21
1979	26
1980	60
1981	14
1982	19
1983	43
1984	20
1985	24
1986	24
1987	25
1988	24
1989	39
1990	25
1991	24
1992	27
1993	23
1994	16
1995	13
1996	35
1997	17
1998	16
1999	15
2000	31
2001	16
2002	17
2003	11
2004	25
2005	15
2006	28
2007	19
2008	19
2009	17
2010	5
2011	34
2012	50
2013	19
2014	30
2015	16
2016	21
2017	25
2018	28
2019	21
2020	16
2021	21
2022	29
2023	13
2024	25
2025	21
2026	27

All-Time Record Progression

2 new records

2 all-time records were set at Billings 1SW between 30 July 2012 and 16 February 2021. Each dot is a new record.

When Billings 1SW set new all-time records
Date	Kind	Detail
2012-07-30	Record high minimum temperature	Record high minimum temperature 26.1 C (79.0 F)
2021-02-16	Record low minimum temperature	Record low minimum temperature -28.9 C (-20.0 F)

Wettest Day of Each Month

Sep: 189.5 mm (7.5 in)

The wettest day on record for each calendar month at Billings 1SW. The most was 189.5 mm (7.5 in) on 25 September 1993.

Record daily precipitation for each month at Billings 1SW
Month	Record daily precipitation (mm)	Date
Jan	85.3 mm (3.4 in)	5 January 2005
Feb	73.7 mm (2.9 in)	24 February 2018
Mar	122.4 mm (4.8 in)	18 March 2008
Apr	99.6 mm (3.9 in)	30 April 2017
May	101.6 mm (4.0 in)	20 May 1979
Jun	94.0 mm (3.7 in)	11 June 1981
Jul	88.9 mm (3.5 in)	30 July 2013
Aug	182.1 mm (7.2 in)	13 August 1982
Sep	189.5 mm (7.5 in)	25 September 1993
Oct	135.4 mm (5.3 in)	8 October 2009
Nov	120.9 mm (4.8 in)	25 November 1987
Dec	189.2 mm (7.4 in)	27 December 2015

Period of Record Coverage

1962 to 2026

65 years of record at Billings 1SW, 1962 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1962, 1967, 1968, 1969, 1989, 1995, 2026.

Days with data per year at Billings 1SW
Year	Days with data	Share of year	Complete
1962	228	62%	No
1963	359	98%	Yes
1964	365	100%	Yes
1965	362	99%	Yes
1966	362	99%	Yes
1967	31	8%	No
1968	31	8%	No
1969	227	62%	No
1970	364	100%	Yes
1971	349	96%	Yes
1972	351	96%	Yes
1973	350	96%	Yes
1974	352	96%	Yes
1975	344	94%	Yes
1976	345	94%	Yes
1977	341	93%	Yes
1978	341	93%	Yes
1979	344	94%	Yes
1980	351	96%	Yes
1981	337	92%	Yes
1982	364	100%	Yes
1983	364	100%	Yes
1984	347	95%	Yes
1985	354	97%	Yes
1986	363	99%	Yes
1987	355	97%	Yes
1988	366	100%	Yes
1989	324	89%	No
1990	356	98%	Yes
1991	350	96%	Yes
1992	341	93%	Yes
1993	345	95%	Yes
1994	365	100%	Yes
1995	322	88%	No
1996	342	93%	Yes
1997	334	92%	Yes
1998	354	97%	Yes
1999	347	95%	Yes
2000	345	94%	Yes
2001	365	100%	Yes
2002	364	100%	Yes
2003	364	100%	Yes
2004	365	100%	Yes
2005	343	94%	Yes
2006	346	95%	Yes
2007	355	97%	Yes
2008	351	96%	Yes
2009	353	97%	Yes
2010	358	98%	Yes
2011	358	98%	Yes
2012	364	99%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	363	99%	Yes
2016	360	98%	Yes
2017	361	99%	Yes
2018	363	99%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	364	100%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	365	100%	Yes
2026	281	77%	No

Latest Records

Latest records at Billings 1SW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 October 2026	Billings 1SW, US	daily high max (Provisional)	32.8 C (91.0 F)	0.6 C (1.1 F)	47 years	21 of 100 (Routine)
1 October 2026	Billings 1SW, US	monthly high min (Tie, Provisional)	20.6 C (69.1 F)	tie	7 years	4 of 100 (Routine)
30 September 2026	Billings 1SW, US	daily high max (Tie, Provisional)	31.7 C (89.1 F)	tie	7 years	2 of 100 (Routine)
21 September 2026	Billings 1SW, US	daily high max (Provisional)	35.6 C (96.1 F)	1.7 C (3.1 F)	8 years	11 of 100 (Routine)
20 September 2026	Billings 1SW, US	daily high max (Provisional)	36.1 C (97.0 F)	1.7 C (3.1 F)	4 years	10 of 100 (Routine)
19 September 2026	Billings 1SW, US	daily high min (Provisional)	22.2 C (72.0 F)	1.6 C (2.9 F)	60 years	27 of 100 (Routine)
19 September 2026	Billings 1SW, US	daily high max (Provisional)	36.7 C (98.1 F)	2.3 C (4.1 F)	7 years	13 of 100 (Routine)
18 September 2026	Billings 1SW, US	daily high max (Provisional)	35.6 C (96.1 F)	1.7 C (3.1 F)	7 years	11 of 100 (Routine)
18 September 2026	Billings 1SW, US	daily high min (Tie, Provisional)	22.2 C (72.0 F)	tie	4 years	1 of 100 (Routine)
17 September 2026	Billings 1SW, US	daily high min (Provisional)	21.7 C (71.1 F)	1.7 C (3.1 F)	60 years	27 of 100 (Routine)
17 September 2026	Billings 1SW, US	daily high max (Provisional)	37.2 C (99.0 F)	2.8 C (5.0 F)	7 years	14 of 100 (Routine)
16 September 2026	Billings 1SW, US	daily high min (Provisional)	23.3 C (73.9 F)	2.7 C (4.9 F)	60 years	30 of 100 (Routine)
16 September 2026	Billings 1SW, US	daily high max (Provisional)	37.8 C (100.0 F)	3.9 C (7.0 F)	7 years	16 of 100 (Routine)
15 September 2026	Billings 1SW, US	daily high min (Provisional)	21.1 C (70.0 F)	0.5 C (0.9 F)	35 years	17 of 100 (Routine)
15 September 2026	Billings 1SW, US	daily high max (Provisional)	37.2 C (99.0 F)	1.6 C (2.9 F)	20 years	15 of 100 (Routine)
11 September 2026	Billings 1SW, US	daily high max (Provisional)	38.3 C (100.9 F)	3.9 C (7.0 F)	43 years	26 of 100 (Routine)
11 September 2026	Billings 1SW, US	daily high min (Provisional)	22.2 C (72.0 F)	1.1 C (2.0 F)	7 years	10 of 100 (Routine)
10 September 2026	Billings 1SW, US	daily high max (Provisional)	37.8 C (100.0 F)	1.7 C (3.1 F)	45 years	22 of 100 (Routine)
10 September 2026	Billings 1SW, US	daily high min (Provisional)	21.7 C (71.1 F)	0.6 C (1.1 F)	7 years	9 of 100 (Routine)
9 September 2026	Billings 1SW, US	daily high max (Provisional)	37.2 C (99.0 F)	1.1 C (2.0 F)	45 years	21 of 100 (Routine)

Climate Trend

39 complete years, 1963 to 2025

One stripe for each of 39 complete years at Billings 1SW, 1963 to 2025. Blue stripes are years cooler than the station's own mean of 13.3 C (56.0 F); red stripes are warmer. The coolest year was 2014, at 12.0 C (53.6 F), and the warmest was 2012, at 15.2 C (59.4 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Billings 1SW as warming stripes, 1963 to 2025
Year	Annual mean temperature	Difference from the station mean
1963	14.1 C	+0.78 C
1964	14.1 C	+0.82 C
1965	14.1 C	+0.79 C
1966	12.7 C	-0.63 C
1970	12.5 C	-0.86 C
1982	12.5 C	-0.82 C
1983	12.5 C	-0.85 C
1984	13.3 C	-0.06 C
1985	12.1 C	-1.23 C
1986	13.8 C	+0.45 C
1987	13.6 C	+0.24 C
1988	12.7 C	-0.64 C
1990	13.7 C	+0.37 C
1994	12.6 C	-0.73 C
1999	13.5 C	+0.21 C
2001	13.0 C	-0.29 C
2002	12.5 C	-0.87 C
2003	12.2 C	-1.10 C
2004	12.7 C	-0.66 C
2006	14.2 C	+0.90 C
2007	13.6 C	+0.28 C
2008	12.6 C	-0.77 C
2009	12.6 C	-0.77 C
2010	13.3 C	-0.07 C
2011	13.7 C	+0.36 C
2012	15.2 C	+1.88 C
2013	12.4 C	-0.88 C
2014	12.0 C	-1.31 C
2015	13.6 C	+0.28 C
2016	14.5 C	+1.18 C
2017	14.5 C	+1.13 C
2018	13.4 C	+0.04 C
2019	13.2 C	-0.13 C
2020	13.5 C	+0.20 C
2021	13.7 C	+0.35 C
2022	13.1 C	-0.24 C
2023	14.1 C	+0.76 C
2024	14.6 C	+1.26 C
2025	14.0 C	+0.69 C

The fitted trend in annual mean temperature here over 1963 to 2025 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Billings 1SW
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.1 to 0.4) per decade	1963 to 2025	39	Not clearly different from zero
Mean daily maximum	0.15 C (-0.02 to 0.33) per decade	0.28 F (-0.04 to 0.60) per decade	1963 to 2025	39	Not clearly different from zero
Mean daily minimum	0.0 C (-0.1 to 0.1) per decade	0.0 F (-0.2 to 0.2) per decade	1963 to 2025	39	Not clearly different from zero

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

1962 to 2026

Yearly extremes at Billings 1SW: 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)	1986	37.2 C (99.0 F)	65
Coldest night (TNn)	-28.9 C (-20.0 F)	2021	-20.6 C (-5.1 F)	65
Wettest day (Rx1day)	189.5 mm (7.5 in)	1993	73.9 mm (2.9 in)	65
Wettest five days (Rx5day)	283.4 mm (11.2 in)	2015	123.7 mm (4.9 in)	65
Longest dry spell (CDD)	45 days	1979	21 days	65

Hottest day (TXx)

The hottest day of the year at Billings 1SW, 1962 to 2026. The record is 42.8 C (109.0 F) in 1986, marked on the chart; the median year is 37.2 C (99.0 F).

Hottest day (TXx) at Billings 1SW by year
Year	Hottest day (TXx)
1962	37.8 C (100.0 F)
1963	37.8 C (100.0 F)
1964	38.9 C (102.0 F)
1965	35.6 C (96.1 F)
1966	39.4 C (102.9 F)
1967	22.8 C (73.0 F)
1968	16.7 C (62.1 F)
1969	36.1 C (97.0 F)
1970	40.0 C (104.0 F)
1971	37.2 C (99.0 F)
1972	37.8 C (100.0 F)
1973	37.8 C (100.0 F)
1974	41.1 C (106.0 F)
1975	37.2 C (99.0 F)
1976	36.1 C (97.0 F)
1977	38.3 C (100.9 F)
1978	38.3 C (100.9 F)
1979	33.9 C (93.0 F)
1980	42.2 C (108.0 F)
1981	36.1 C (97.0 F)
1982	37.2 C (99.0 F)
1983	39.4 C (102.9 F)
1984	42.2 C (108.0 F)
1985	38.3 C (100.9 F)
1986	42.8 C (109.0 F)
1987	39.4 C (102.9 F)
1988	38.3 C (100.9 F)
1989	34.4 C (93.9 F)
1990	37.2 C (99.0 F)
1991	36.7 C (98.1 F)
1992	32.2 C (90.0 F)
1993	34.4 C (93.9 F)
1994	35.0 C (95.0 F)
1995	36.7 C (98.1 F)
1996	35.0 C (95.0 F)
1997	35.0 C (95.0 F)
1998	35.6 C (96.1 F)
1999	38.9 C (102.0 F)
2000	38.9 C (102.0 F)
2001	36.7 C (98.1 F)
2002	34.4 C (93.9 F)
2003	37.2 C (99.0 F)
2004	33.3 C (91.9 F)
2005	38.9 C (102.0 F)
2006	39.4 C (102.9 F)
2007	40.0 C (104.0 F)
2008	36.1 C (97.0 F)
2009	36.1 C (97.0 F)
2010	38.9 C (102.0 F)
2011	42.8 C (109.0 F)
2012	41.1 C (106.0 F)
2013	36.1 C (97.0 F)
2014	39.4 C (102.9 F)
2015	35.6 C (96.1 F)
2016	37.8 C (100.0 F)
2017	37.2 C (99.0 F)
2018	38.9 C (102.0 F)
2019	35.6 C (96.1 F)
2020	36.7 C (98.1 F)
2021	35.6 C (96.1 F)
2022	40.0 C (104.0 F)
2023	37.8 C (100.0 F)
2024	36.7 C (98.1 F)
2025	37.8 C (100.0 F)
2026	38.9 C (102.0 F)

Coldest night (TNn)

The coldest night of the year at Billings 1SW, 1962 to 2026. The record is -28.9 C (-20.0 F) in 2021, marked on the chart; the median year is -20.6 C (-5.1 F).

Coldest night (TNn) at Billings 1SW by year
Year	Coldest night (TNn)
1962	-20.0 C (-4.0 F)
1963	-23.3 C (-9.9 F)
1964	-18.9 C (-2.0 F)
1965	-17.8 C (0.0 F)
1966	-21.1 C (-6.0 F)
1967	-15.0 C (5.0 F)
1968	-18.9 C (-2.0 F)
1969	-17.2 C (1.0 F)
1970	-21.1 C (-6.0 F)
1971	-22.8 C (-9.0 F)
1972	-20.6 C (-5.1 F)
1973	-20.6 C (-5.1 F)
1974	-21.1 C (-6.0 F)
1975	-16.1 C (3.0 F)
1976	-21.7 C (-7.1 F)
1977	-25.6 C (-14.1 F)
1978	-21.7 C (-7.1 F)
1979	-26.1 C (-15.0 F)
1980	-20.6 C (-5.1 F)
1981	-23.3 C (-9.9 F)
1982	-24.4 C (-11.9 F)
1983	-25.0 C (-13.0 F)
1984	-26.1 C (-15.0 F)
1985	-27.2 C (-17.0 F)
1986	-18.3 C (-0.9 F)
1987	-14.4 C (6.1 F)
1988	-21.1 C (-6.0 F)
1989	-26.1 C (-15.0 F)
1990	-18.3 C (-0.9 F)
1991	-17.2 C (1.0 F)
1992	-16.1 C (3.0 F)
1993	-20.6 C (-5.1 F)
1994	-18.9 C (-2.0 F)
1995	-19.4 C (-2.9 F)
1996	-23.3 C (-9.9 F)
1997	-21.7 C (-7.1 F)
1998	-15.6 C (3.9 F)
1999	-19.4 C (-2.9 F)
2000	-20.6 C (-5.1 F)
2001	-18.3 C (-0.9 F)
2002	-17.2 C (1.0 F)
2003	-18.9 C (-2.0 F)
2004	-17.2 C (1.0 F)
2005	-16.1 C (3.0 F)
2006	-16.7 C (1.9 F)
2007	-15.6 C (3.9 F)
2008	-16.7 C (1.9 F)
2009	-15.6 C (3.9 F)
2010	-23.3 C (-9.9 F)
2011	-26.1 C (-15.0 F)
2012	-14.4 C (6.1 F)
2013	-19.4 C (-2.9 F)
2014	-26.7 C (-16.1 F)
2015	-23.3 C (-9.9 F)
2016	-18.9 C (-2.0 F)
2017	-17.8 C (0.0 F)
2018	-22.8 C (-9.0 F)
2019	-16.7 C (1.9 F)
2020	-13.9 C (7.0 F)
2021	-28.9 C (-20.0 F)
2022	-22.8 C (-9.0 F)
2023	-12.2 C (10.0 F)
2024	-21.1 C (-6.0 F)
2025	-25.6 C (-14.1 F)
2026	-23.9 C (-11.0 F)

Wettest day (Rx1day)

The wettest day of the year at Billings 1SW, 1962 to 2026. The record is 189.5 mm (7.5 in) in 1993, marked on the chart; the median year is 73.9 mm (2.9 in).

Wettest day (Rx1day) at Billings 1SW by year
Year	Wettest day (Rx1day)
1962	39.9 mm (1.6 in)
1963	67.6 mm (2.7 in)
1964	67.3 mm (2.6 in)
1965	71.9 mm (2.8 in)
1966	67.6 mm (2.7 in)
1967	29.5 mm (1.2 in)
1968	52.1 mm (2.1 in)
1969	58.4 mm (2.3 in)
1970	67.1 mm (2.6 in)
1971	62.2 mm (2.4 in)
1972	67.3 mm (2.6 in)
1973	100.1 mm (3.9 in)
1974	84.1 mm (3.3 in)
1975	48.3 mm (1.9 in)
1976	72.4 mm (2.9 in)
1977	61.5 mm (2.4 in)
1978	57.2 mm (2.3 in)
1979	101.6 mm (4.0 in)
1980	36.1 mm (1.4 in)
1981	94.0 mm (3.7 in)
1982	182.1 mm (7.2 in)
1983	73.9 mm (2.9 in)
1984	67.3 mm (2.6 in)
1985	75.7 mm (3.0 in)
1986	148.6 mm (5.9 in)
1987	120.9 mm (4.8 in)
1988	85.1 mm (3.4 in)
1989	43.7 mm (1.7 in)
1990	68.6 mm (2.7 in)
1991	60.5 mm (2.4 in)
1992	89.7 mm (3.5 in)
1993	189.5 mm (7.5 in)
1994	101.9 mm (4.0 in)
1995	53.3 mm (2.1 in)
1996	87.1 mm (3.4 in)
1997	67.1 mm (2.6 in)
1998	77.5 mm (3.1 in)
1999	46.2 mm (1.8 in)
2000	63.5 mm (2.5 in)
2001	55.1 mm (2.2 in)
2002	82.8 mm (3.3 in)
2003	62.2 mm (2.4 in)
2004	97.0 mm (3.8 in)
2005	85.3 mm (3.4 in)
2006	83.8 mm (3.3 in)
2007	74.9 mm (2.9 in)
2008	122.4 mm (4.8 in)
2009	135.4 mm (5.3 in)
2010	130.3 mm (5.1 in)
2011	81.3 mm (3.2 in)
2012	85.1 mm (3.4 in)
2013	88.9 mm (3.5 in)
2014	59.7 mm (2.4 in)
2015	189.2 mm (7.4 in)
2016	95.5 mm (3.8 in)
2017	99.6 mm (3.9 in)
2018	73.7 mm (2.9 in)
2019	93.7 mm (3.7 in)
2020	66.8 mm (2.6 in)
2021	65.3 mm (2.6 in)
2022	91.2 mm (3.6 in)
2023	86.4 mm (3.4 in)
2024	95.0 mm (3.7 in)
2025	66.8 mm (2.6 in)
2026	73.2 mm (2.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Billings 1SW, 1962 to 2026. The record is 283.4 mm (11.2 in) in 2015, marked on the chart; the median year is 123.7 mm (4.9 in).

Wettest five days (Rx5day) at Billings 1SW by year
Year	Wettest five days (Rx5day)
1962	71.4 mm (2.8 in)
1963	140.3 mm (5.5 in)
1964	137.9 mm (5.4 in)
1965	177.3 mm (7.0 in)
1966	114.1 mm (4.5 in)
1967	35.3 mm (1.4 in)
1968	73.7 mm (2.9 in)
1969	118.9 mm (4.7 in)
1970	116.4 mm (4.6 in)
1971	91.5 mm (3.6 in)
1972	117.8 mm (4.6 in)
1973	140.2 mm (5.5 in)
1974	127.8 mm (5.0 in)
1975	70.6 mm (2.8 in)
1976	100.9 mm (4.0 in)
1977	117.0 mm (4.6 in)
1978	118.7 mm (4.7 in)
1979	130.1 mm (5.1 in)
1980	58.3 mm (2.3 in)
1981	147.5 mm (5.8 in)
1982	208.0 mm (8.2 in)
1983	118.6 mm (4.7 in)
1984	94.1 mm (3.7 in)
1985	133.9 mm (5.3 in)
1986	198.9 mm (7.8 in)
1987	132.3 mm (5.2 in)
1988	128.1 mm (5.0 in)
1989	96.3 mm (3.8 in)
1990	139.2 mm (5.5 in)
1991	88.9 mm (3.5 in)
1992	125.0 mm (4.9 in)
1993	230.2 mm (9.1 in)
1994	146.1 mm (5.8 in)
1995	118.0 mm (4.6 in)
1996	97.5 mm (3.8 in)
1997	85.1 mm (3.4 in)
1998	87.2 mm (3.4 in)
1999	89.2 mm (3.5 in)
2000	123.7 mm (4.9 in)
2001	97.5 mm (3.8 in)
2002	116.6 mm (4.6 in)
2003	74.4 mm (2.9 in)
2004	118.3 mm (4.7 in)
2005	114.6 mm (4.5 in)
2006	82.1 mm (3.2 in)
2007	160.8 mm (6.3 in)
2008	169.2 mm (6.7 in)
2009	231.4 mm (9.1 in)
2010	210.8 mm (8.3 in)
2011	194.6 mm (7.7 in)
2012	121.4 mm (4.8 in)
2013	135.7 mm (5.3 in)
2014	123.3 mm (4.9 in)
2015	283.4 mm (11.2 in)
2016	126.0 mm (5.0 in)
2017	198.3 mm (7.8 in)
2018	165.9 mm (6.5 in)
2019	164.3 mm (6.5 in)
2020	116.4 mm (4.6 in)
2021	105.9 mm (4.2 in)
2022	139.2 mm (5.5 in)
2023	128.3 mm (5.1 in)
2024	176.7 mm (7.0 in)
2025	136.5 mm (5.4 in)
2026	127.4 mm (5.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Billings 1SW, 1962 to 2026. The record is 45 days in 1979, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Billings 1SW by year
Year	Longest dry spell (CDD)
1962	19 days
1963	25 days
1964	20 days
1965	23 days
1966	30 days
1967	25 days
1968	17 days
1969	18 days
1970	17 days
1971	23 days
1972	23 days
1973	22 days
1974	21 days
1975	14 days
1976	24 days
1977	22 days
1978	22 days
1979	45 days
1980	28 days
1981	24 days
1982	18 days
1983	30 days
1984	22 days
1985	30 days
1986	33 days
1987	19 days
1988	17 days
1989	23 days
1990	18 days
1991	21 days
1992	26 days
1993	17 days
1994	28 days
1995	26 days
1996	23 days
1997	14 days
1998	19 days
1999	33 days
2000	24 days
2001	17 days
2002	20 days
2003	23 days
2004	28 days
2005	15 days
2006	19 days
2007	21 days
2008	21 days
2009	18 days
2010	19 days
2011	2 days
2012	22 days
2013	18 days
2014	21 days
2015	26 days
2016	20 days
2017	21 days
2018	17 days
2019	16 days
2020	25 days
2021	13 days
2022	20 days
2023	14 days
2024	30 days
2025	29 days
2026	19 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

39 years with a frost

Across 39 years with a frost, the median last spring frost at Billings 1SW falls on 15 April and the median first autumn frost on 21 October, which leaves a median of 183 days between them.

Fitted over all years, the growing season changes by +0.1 days per decade at this station.

Frost dates and growing season at Billings 1SW
Measure	Median, all years	Earliest period	Recent period (1986 to 2025)	Recent against earliest	Fitted trend
Last spring frost	15 April	n/a	16 April	n/a	+1.1 days per decade
First autumn frost	21 October	n/a	22 October	n/a	+1.2 days per decade
Growing days	183 days	n/a	184 days	n/a	+0.1 days per decade

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.

Rainfall Return Levels

55 years, 1963 to 2025

A day with at least 77.3 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 216.3 mm (8.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Billings 1SW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	77.3 mm (3.0 in)
5 years	104.3 mm (4.1 in)
10 years	125.7 mm (4.9 in)
25 years	157.5 mm (6.2 in)
50 years	185.1 mm (7.3 in)
100 years	216.3 mm (8.5 in)	Longer than the 55 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, 55 years of values from 1963 to 2025.

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: 189.5 mm (7.5 in) in 1993; 189.2 mm (7.4 in) in 2015; 182.1 mm (7.2 in) in 1982.

Download the Data

Data for Billings 1SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Billings 1SW 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).