Big Spring Weather Records (USW00023041)

Record envelope, standing records and threshold days for Big Spring (USW00023041), Texas, United States, with 74 years of record.

Key Facts for Big Spring

Big Spring (USW00023041) is a weather station in Texas, United States at 32.24 latitude and -101.45 longitude, 765 m (2,510 ft) above sea level.
The station reports from 1948 to 2021, 74 years of record.
1,464 records set at Big Spring still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Big Spring set a daily record high maximum temperature of 29.4 C (84.9 F) on 17 November 2021.

About the Station

Location: Texas, United States, 32.24 latitude, -101.45 longitude.
Elevation: 765 m (2,510 ft).
Period of record: 1948 to 2021, 74 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Big Spring. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Big Spring, 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)	-18.9 C (-2.0 F)	n/a	n/a
Feb	32.8 C (91.0 F)	-20.6 C (-5.1 F)	n/a	n/a
Mar	36.1 C (97.0 F)	-12.8 C (9.0 F)	n/a	n/a
Apr	40.6 C (105.1 F)	-3.9 C (25.0 F)	n/a	n/a
May	42.8 C (109.0 F)	-0.6 C (30.9 F)	n/a	n/a
Jun	45.6 C (114.1 F)	6.1 C (43.0 F)	n/a	n/a
Jul	43.3 C (109.9 F)	10.6 C (51.1 F)	n/a	n/a
Aug	44.4 C (111.9 F)	10.0 C (50.0 F)	n/a	n/a
Sep	42.2 C (108.0 F)	3.9 C (39.0 F)	n/a	n/a
Oct	38.3 C (100.9 F)	-7.2 C (19.0 F)	n/a	n/a
Nov	33.3 C (91.9 F)	-9.4 C (15.1 F)	n/a	n/a
Dec	30.0 C (86.0 F)	-17.2 C (1.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Big Spring still stand. 2011 holds the most, with 68.

Standing records at Big Spring by the year they were set
Year set	Standing records
1948	23
1949	13
1950	23
1951	28
1952	18
1953	25
1954	16
1955	21
1956	16
1957	18
1958	9
1959	23
1960	18
1961	27
1962	20
1963	18
1964	11
1965	33
1966	21
1967	19
1968	8
1969	15
1970	16
1971	31
1972	29
1973	19
1974	16
1975	21
1976	26
1977	10
1978	17
1979	16
1980	19
1981	9
1982	17
1983	21
1984	16
1985	22
1986	16
1987	11
1988	13
1989	40
1990	23
1991	16
1992	14
1993	10
1994	20
1995	43
1996	26
1997	20
1998	18
1999	8
2000	44
2001	13
2002	17
2003	17
2004	10
2005	18
2006	14
2007	13
2008	11
2009	15
2010	15
2011	68
2012	37
2013	9
2015	7
2016	26
2017	25
2018	24
2019	27
2020	29
2021	19

All-Time Record Progression

13 new records

13 all-time records were set at Big Spring between 22 December 1983 and 14 July 2020. Each dot is a new record.

When Big Spring set new all-time records
Date	Kind	Detail
1983-12-22	Record low maximum temperature	Record low maximum temperature -8.9 C (16.0 F)
1983-12-24	Record low maximum temperature	Record low maximum temperature -11.7 C (10.9 F)
1983-12-25	Record low maximum temperature	Record low maximum temperature -13.3 C (8.1 F)
1985-02-02	Record low minimum temperature	Record low minimum temperature -20.6 C (-5.1 F)
1994-05-11	Record daily precipitation	Record daily precipitation 122.9 mm (4.8 in)
1994-06-28	Record high maximum temperature	Record high maximum temperature 45.6 C (114.1 F)
1998-07-08	Record high minimum temperature	Record high minimum temperature 27.2 C (81.0 F)
2001-07-16	Record high minimum temperature	Record high minimum temperature 27.8 C (82.0 F)
2007-08-18	Record daily precipitation	Record daily precipitation 129.3 mm (5.1 in)
2011-08-04	Record high minimum temperature	Record high minimum temperature 28.9 C (84.0 F)
2020-02-05	Record daily snowfall	Record daily snowfall 25.4 cm (10.0 in)
2020-02-05	Record snow depth	Record snow depth 25.4 cm (10.0 in)
2020-07-14	Record high minimum temperature	Record high minimum temperature 29.4 C (84.9 F)

Wettest Day of Each Month

Aug: 129.3 mm (5.1 in)

The wettest day on record for each calendar month at Big Spring. The most was 129.3 mm (5.1 in) on 18 August 2007.

Record daily precipitation for each month at Big Spring
Month	Record daily precipitation (mm)	Date
Jan	48.3 mm (1.9 in)	16 January 2017
Feb	58.4 mm (2.3 in)	24 February 1992
Mar	106.7 mm (4.2 in)	23 March 2000
Apr	80.0 mm (3.1 in)	16 April 2010
May	122.9 mm (4.8 in)	11 May 1994
Jun	79.2 mm (3.1 in)	30 June 2010
Jul	80.0 mm (3.1 in)	23 July 1948
Aug	129.3 mm (5.1 in)	18 August 2007
Sep	127.0 mm (5.0 in)	29 September 2012
Oct	87.1 mm (3.4 in)	3 October 1953
Nov	88.9 mm (3.5 in)	6 November 2016
Dec	40.6 mm (1.6 in)	8 December 1980

Period of Record Coverage

1948 to 2021

73 years of record at Big Spring, 1948 to 2021. 15 years have data for under 90 percent of days and are left out of rankings: 1959, 1963, 1964, 1978, 1984, 1986, 1996, 2000 and others.

Days with data per year at Big Spring
Year	Days with data	Share of year	Complete
1948	366	100%	Yes
1949	365	100%	Yes
1950	365	100%	Yes
1951	364	100%	Yes
1952	364	99%	Yes
1953	358	98%	Yes
1954	362	99%	Yes
1955	364	100%	Yes
1956	359	98%	Yes
1957	359	98%	Yes
1958	330	90%	Yes
1959	327	90%	No
1960	345	94%	Yes
1961	351	96%	Yes
1962	345	95%	Yes
1963	234	64%	No
1964	239	65%	No
1965	357	98%	Yes
1966	364	100%	Yes
1967	365	100%	Yes
1968	364	99%	Yes
1969	364	100%	Yes
1970	361	99%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	334	92%	Yes
1975	364	100%	Yes
1976	361	99%	Yes
1977	359	98%	Yes
1978	319	87%	No
1979	358	98%	Yes
1980	360	98%	Yes
1981	353	97%	Yes
1982	331	91%	Yes
1983	330	90%	Yes
1984	298	81%	No
1985	362	99%	Yes
1986	312	85%	No
1987	362	99%	Yes
1988	365	100%	Yes
1989	352	96%	Yes
1990	358	98%	Yes
1991	361	99%	Yes
1992	334	91%	Yes
1993	363	99%	Yes
1994	356	98%	Yes
1995	359	98%	Yes
1996	302	83%	No
1997	363	99%	Yes
1998	365	100%	Yes
1999	360	99%	Yes
2000	328	90%	No
2001	333	91%	Yes
2002	301	82%	No
2003	303	83%	No
2004	365	100%	Yes
2005	364	100%	Yes
2006	264	72%	No
2007	331	91%	Yes
2008	365	100%	Yes
2009	330	90%	Yes
2010	357	98%	Yes
2011	364	100%	Yes
2012	364	99%	Yes
2013	122	33%	No
2015	141	39%	No
2016	355	97%	Yes
2017	344	94%	Yes
2018	359	98%	Yes
2019	361	99%	Yes
2020	275	75%	No
2021	120	33%	No

Latest Records

Latest records at Big Spring
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 November 2021	Big Spring, US	daily high max	29.4 C (84.9 F)	1.6 C (2.9 F)	40 years	21 of 100 (Routine)
12 November 2021	Big Spring, US	daily high max (Tie)	27.2 C (81.0 F)	tie	66 years	6 of 100 (Routine)
26 October 2021	Big Spring, US	daily high max	33.3 C (91.9 F)	1.1 C (2.0 F)	71 years	29 of 100 (Routine)
25 October 2021	Big Spring, US	daily high max	33.3 C (91.9 F)	0.5 C (0.9 F)	71 years	28 of 100 (Routine)
7 October 2021	Big Spring, US	daily high max (Tie)	35.6 C (96.1 F)	tie	64 years	6 of 100 (Routine)
21 February 2021	Big Spring, US	daily low min	-11.7 C (10.9 F)	5.0 C (9.0 F)	68 years	36 of 100 (Notable)
20 February 2021	Big Spring, US	daily low min	-11.1 C (12.0 F)	2.8 C (5.0 F)	66 years	31 of 100 (Routine)
19 February 2021	Big Spring, US	daily low min	-11.7 C (10.9 F)	3.9 C (7.0 F)	43 years	26 of 100 (Routine)
18 February 2021	Big Spring, US	daily low min	-11.1 C (12.0 F)	2.8 C (5.0 F)	43 years	24 of 100 (Routine)
18 February 2021	Big Spring, US	daily low max	-5.6 C (21.9 F)	2.3 C (4.1 F)	28 years	18 of 100 (Routine)
17 February 2021	Big Spring, US	daily low min	-17.8 C (0.0 F)	8.9 C (16.0 F)	42 years	36 of 100 (Notable)
16 February 2021	Big Spring, US	daily low min	-17.2 C (1.0 F)	10.5 C (18.9 F)	42 years	39 of 100 (Notable)
16 February 2021	Big Spring, US	daily low max	-2.8 C (27.0 F)	4.5 C (8.1 F)	13 years	16 of 100 (Routine)
15 February 2021	Big Spring, US	daily low min	-17.8 C (0.0 F)	7.2 C (13.0 F)	70 years	42 of 100 (Notable)
15 February 2021	Big Spring, US	daily low max	-2.8 C (27.0 F)	1.1 C (2.0 F)	14 years	12 of 100 (Routine)
14 February 2021	Big Spring, US	daily low min	-17.2 C (1.0 F)	4.4 C (7.9 F)	58 years	32 of 100 (Routine)
14 February 2021	Big Spring, US	monthly low max	-11.7 C (10.9 F)	1.1 C (2.0 F)	36 years	28 of 100 (Routine)
13 February 2021	Big Spring, US	daily low min	-16.7 C (1.9 F)	7.8 C (14.0 F)	58 years	39 of 100 (Notable)
13 February 2021	Big Spring, US	daily low max	-7.8 C (18.0 F)	6.7 C (12.1 F)	58 years	33 of 100 (Routine)
12 February 2021	Big Spring, US	daily low max	-6.1 C (21.0 F)	1.7 C (3.1 F)	58 years	26 of 100 (Routine)

Climate Trend

48 complete years, 1948 to 2019

One stripe for each of 48 complete years at Big Spring, 1948 to 2019. Blue stripes are years cooler than the station's own mean of 18.0 C (64.3 F); red stripes are warmer. The coolest year was 1976, at 16.3 C (61.4 F), and the warmest was 2011, at 19.5 C (67.2 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Big Spring as warming stripes, 1948 to 2019
Year	Annual mean temperature	Difference from the station mean
1948	17.7 C	-0.23 C
1949	17.4 C	-0.62 C
1950	18.3 C	+0.29 C
1951	18.3 C	+0.32 C
1952	18.6 C	+0.58 C
1953	18.9 C	+0.90 C
1954	18.8 C	+0.80 C
1955	18.2 C	+0.21 C
1956	18.6 C	+0.62 C
1957	17.5 C	-0.50 C
1960	17.6 C	-0.42 C
1962	18.1 C	+0.09 C
1965	18.6 C	+0.63 C
1966	17.7 C	-0.31 C
1967	18.8 C	+0.87 C
1968	17.9 C	-0.08 C
1969	18.5 C	+0.52 C
1970	18.3 C	+0.28 C
1971	17.0 C	-0.93 C
1972	17.1 C	-0.90 C
1973	16.5 C	-1.50 C
1975	16.5 C	-1.51 C
1976	16.3 C	-1.66 C
1979	16.9 C	-1.06 C
1980	17.8 C	-0.15 C
1981	18.0 C	+0.02 C
1985	17.3 C	-0.65 C
1987	17.0 C	-1.01 C
1988	17.4 C	-0.62 C
1989	17.5 C	-0.48 C
1990	17.9 C	-0.03 C
1991	17.5 C	-0.52 C
1993	17.3 C	-0.69 C
1994	18.2 C	+0.23 C
1995	17.6 C	-0.40 C
1997	17.2 C	-0.82 C
1998	19.3 C	+1.34 C
1999	19.0 C	+0.99 C
2004	18.0 C	+0.05 C
2005	18.2 C	+0.19 C
2008	18.1 C	+0.14 C
2010	18.0 C	+0.06 C
2011	19.5 C	+1.56 C
2012	19.4 C	+1.45 C
2016	19.1 C	+1.17 C
2017	18.9 C	+0.96 C
2018	18.3 C	+0.34 C
2019	18.4 C	+0.47 C

The fitted trend in annual mean temperature here over 1948 to 2019 is 0.08 C (-0.03 to 0.18) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Big Spring
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.08 C (-0.03 to 0.18) per decade	0.1 F (-0.1 to 0.3) per decade	1948 to 2019	48	Not clearly different from zero
Mean daily maximum	0.08 C (-0.04 to 0.20) per decade	0.1 F (-0.1 to 0.4) per decade	1948 to 2019	48	Not clearly different from zero
Mean daily minimum	0.07 C (-0.03 to 0.18) per decade	0.1 F (-0.1 to 0.3) per decade	1948 to 2019	48	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

1948 to 2021

Yearly extremes at Big Spring: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.6 C (114.1 F)	1994	40.6 C (105.1 F)	73
Coldest night (TNn)	-20.6 C (-5.1 F)	1985	-10.6 C (12.9 F)	73
Wettest day (Rx1day)	129.3 mm (5.1 in)	2007	53.3 mm (2.1 in)	73
Wettest five days (Rx5day)	202.7 mm (8.0 in)	1962	81.2 mm (3.2 in)	73
Longest dry spell (CDD)	102 days	2011	48 days	73

Hottest day (TXx)

The hottest day of the year at Big Spring, 1948 to 2021. The record is 45.6 C (114.1 F) in 1994, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at Big Spring by year
Year	Hottest day (TXx)
1948	40.0 C (104.0 F)
1949	39.4 C (102.9 F)
1950	38.3 C (100.9 F)
1951	43.3 C (109.9 F)
1952	40.6 C (105.1 F)
1953	41.7 C (107.1 F)
1954	40.6 C (105.1 F)
1955	40.6 C (105.1 F)
1956	41.7 C (107.1 F)
1957	40.6 C (105.1 F)
1958	40.6 C (105.1 F)
1959	41.7 C (107.1 F)
1960	42.2 C (108.0 F)
1961	38.9 C (102.0 F)
1962	40.0 C (104.0 F)
1963	38.9 C (102.0 F)
1964	40.0 C (104.0 F)
1965	37.8 C (100.0 F)
1966	37.8 C (100.0 F)
1967	38.9 C (102.0 F)
1968	37.8 C (100.0 F)
1969	41.7 C (107.1 F)
1970	39.4 C (102.9 F)
1971	40.6 C (105.1 F)
1972	40.6 C (105.1 F)
1973	39.4 C (102.9 F)
1974	40.0 C (104.0 F)
1975	40.6 C (105.1 F)
1976	38.3 C (100.9 F)
1977	41.7 C (107.1 F)
1978	41.1 C (106.0 F)
1979	38.9 C (102.0 F)
1980	42.8 C (109.0 F)
1981	38.9 C (102.0 F)
1982	39.4 C (102.9 F)
1983	41.1 C (106.0 F)
1984	40.0 C (104.0 F)
1985	40.0 C (104.0 F)
1986	40.6 C (105.1 F)
1987	38.9 C (102.0 F)
1988	40.6 C (105.1 F)
1989	42.2 C (108.0 F)
1990	41.7 C (107.1 F)
1991	37.8 C (100.0 F)
1992	40.6 C (105.1 F)
1993	38.9 C (102.0 F)
1994	45.6 C (114.1 F)
1995	41.7 C (107.1 F)
1996	41.7 C (107.1 F)
1997	38.9 C (102.0 F)
1998	43.3 C (109.9 F)
1999	40.0 C (104.0 F)
2000	42.8 C (109.0 F)
2001	41.7 C (107.1 F)
2002	38.9 C (102.0 F)
2003	41.1 C (106.0 F)
2004	39.4 C (102.9 F)
2005	41.1 C (106.0 F)
2006	39.4 C (102.9 F)
2007	37.8 C (100.0 F)
2008	41.1 C (106.0 F)
2009	40.6 C (105.1 F)
2010	42.8 C (109.0 F)
2011	42.8 C (109.0 F)
2012	41.7 C (107.1 F)
2013	40.6 C (105.1 F)
2015	40.0 C (104.0 F)
2016	41.1 C (106.0 F)
2017	43.9 C (111.0 F)
2018	42.8 C (109.0 F)
2019	44.4 C (111.9 F)
2020	43.3 C (109.9 F)
2021	36.1 C (97.0 F)

Coldest night (TNn)

The coldest night of the year at Big Spring, 1948 to 2021. The record is -20.6 C (-5.1 F) in 1985, marked on the chart; the median year is -10.6 C (12.9 F).

Coldest night (TNn) at Big Spring by year
Year	Coldest night (TNn)
1948	-13.9 C (7.0 F)
1949	-14.4 C (6.1 F)
1950	-12.8 C (9.0 F)
1951	-17.8 C (0.0 F)
1952	-7.2 C (19.0 F)
1953	-10.6 C (12.9 F)
1954	-8.3 C (17.1 F)
1955	-8.9 C (16.0 F)
1956	-12.2 C (10.0 F)
1957	-9.4 C (15.1 F)
1958	-8.3 C (17.1 F)
1959	-15.0 C (5.0 F)
1960	-11.1 C (12.0 F)
1961	-12.2 C (10.0 F)
1962	-18.9 C (-2.0 F)
1963	-15.6 C (3.9 F)
1964	-8.9 C (16.0 F)
1965	-10.0 C (14.0 F)
1966	-14.4 C (6.1 F)
1967	-10.0 C (14.0 F)
1968	-10.6 C (12.9 F)
1969	-7.8 C (18.0 F)
1970	-10.0 C (14.0 F)
1971	-12.8 C (9.0 F)
1972	-12.8 C (9.0 F)
1973	-11.1 C (12.0 F)
1974	-11.7 C (10.9 F)
1975	-10.0 C (14.0 F)
1976	-11.1 C (12.0 F)
1977	-11.7 C (10.9 F)
1978	-11.1 C (12.0 F)
1979	-15.6 C (3.9 F)
1980	-10.6 C (12.9 F)
1981	-12.8 C (9.0 F)
1982	-15.6 C (3.9 F)
1983	-15.6 C (3.9 F)
1984	-3.9 C (25.0 F)
1985	-20.6 C (-5.1 F)
1986	-8.9 C (16.0 F)
1987	-10.0 C (14.0 F)
1988	-10.0 C (14.0 F)
1989	-17.2 C (1.0 F)
1990	-13.3 C (8.1 F)
1991	-7.2 C (19.0 F)
1992	-10.6 C (12.9 F)
1993	-8.9 C (16.0 F)
1994	-8.9 C (16.0 F)
1995	-8.3 C (17.1 F)
1996	-12.2 C (10.0 F)
1997	-11.7 C (10.9 F)
1998	-11.1 C (12.0 F)
1999	-6.1 C (21.0 F)
2000	-8.3 C (17.1 F)
2001	-5.0 C (23.0 F)
2002	-8.3 C (17.1 F)
2003	-9.4 C (15.1 F)
2004	-9.4 C (15.1 F)
2005	-12.2 C (10.0 F)
2006	-7.8 C (18.0 F)
2007	-8.3 C (17.1 F)
2008	-7.8 C (18.0 F)
2009	-8.9 C (16.0 F)
2010	-8.3 C (17.1 F)
2011	-13.9 C (7.0 F)
2012	-6.7 C (19.9 F)
2013	-6.1 C (21.0 F)
2015	-5.6 C (21.9 F)
2016	-11.7 C (10.9 F)
2017	-12.2 C (10.0 F)
2018	-13.3 C (8.1 F)
2019	-7.8 C (18.0 F)
2020	-12.2 C (10.0 F)
2021	-17.8 C (0.0 F)

Wettest day (Rx1day)

The wettest day of the year at Big Spring, 1948 to 2021. The record is 129.3 mm (5.1 in) in 2007, marked on the chart; the median year is 53.3 mm (2.1 in).

Wettest day (Rx1day) at Big Spring by year
Year	Wettest day (Rx1day)
1948	80.0 mm (3.1 in)
1949	43.9 mm (1.7 in)
1950	60.7 mm (2.4 in)
1951	42.2 mm (1.7 in)
1952	47.8 mm (1.9 in)
1953	87.1 mm (3.4 in)
1954	75.4 mm (3.0 in)
1955	71.6 mm (2.8 in)
1956	14.2 mm (0.6 in)
1957	60.5 mm (2.4 in)
1958	33.0 mm (1.3 in)
1959	50.8 mm (2.0 in)
1960	59.9 mm (2.4 in)
1961	69.9 mm (2.8 in)
1962	80.0 mm (3.1 in)
1963	45.7 mm (1.8 in)
1964	23.9 mm (0.9 in)
1965	56.4 mm (2.2 in)
1966	48.3 mm (1.9 in)
1967	63.5 mm (2.5 in)
1968	50.3 mm (2.0 in)
1969	36.3 mm (1.4 in)
1970	38.9 mm (1.5 in)
1971	44.7 mm (1.8 in)
1972	66.0 mm (2.6 in)
1973	58.9 mm (2.3 in)
1974	38.6 mm (1.5 in)
1975	106.7 mm (4.2 in)
1976	46.0 mm (1.8 in)
1977	39.1 mm (1.5 in)
1978	56.9 mm (2.2 in)
1979	48.3 mm (1.9 in)
1980	76.2 mm (3.0 in)
1981	47.5 mm (1.9 in)
1982	48.3 mm (1.9 in)
1983	73.7 mm (2.9 in)
1984	72.1 mm (2.8 in)
1985	51.3 mm (2.0 in)
1986	59.7 mm (2.4 in)
1987	55.6 mm (2.2 in)
1988	96.3 mm (3.8 in)
1989	53.3 mm (2.1 in)
1990	76.2 mm (3.0 in)
1991	66.0 mm (2.6 in)
1992	58.4 mm (2.3 in)
1993	53.3 mm (2.1 in)
1994	122.9 mm (4.8 in)
1995	104.1 mm (4.1 in)
1996	52.1 mm (2.1 in)
1997	50.8 mm (2.0 in)
1998	37.3 mm (1.5 in)
1999	61.0 mm (2.4 in)
2000	106.7 mm (4.2 in)
2001	24.9 mm (1.0 in)
2002	35.6 mm (1.4 in)
2003	39.6 mm (1.6 in)
2004	53.3 mm (2.1 in)
2005	43.7 mm (1.7 in)
2006	24.1 mm (0.9 in)
2007	129.3 mm (5.1 in)
2008	30.0 mm (1.2 in)
2009	30.5 mm (1.2 in)
2010	80.0 mm (3.1 in)
2011	33.8 mm (1.3 in)
2012	127.0 mm (5.0 in)
2013	50.0 mm (2.0 in)
2015	73.7 mm (2.9 in)
2016	88.9 mm (3.5 in)
2017	50.8 mm (2.0 in)
2018	80.8 mm (3.2 in)
2019	54.9 mm (2.2 in)
2020	45.0 mm (1.8 in)
2021	15.2 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Big Spring, 1948 to 2021. The record is 202.7 mm (8.0 in) in 1962, marked on the chart; the median year is 81.2 mm (3.2 in).

Wettest five days (Rx5day) at Big Spring by year
Year	Wettest five days (Rx5day)
1948	90.7 mm (3.6 in)
1949	50.3 mm (2.0 in)
1950	89.7 mm (3.5 in)
1951	42.2 mm (1.7 in)
1952	56.2 mm (2.2 in)
1953	96.5 mm (3.8 in)
1954	80.0 mm (3.1 in)
1955	75.7 mm (3.0 in)
1956	35.8 mm (1.4 in)
1957	91.5 mm (3.6 in)
1958	46.3 mm (1.8 in)
1959	92.1 mm (3.6 in)
1960	80.3 mm (3.2 in)
1961	84.5 mm (3.3 in)
1962	202.7 mm (8.0 in)
1963	59.7 mm (2.4 in)
1964	39.1 mm (1.5 in)
1965	112.5 mm (4.4 in)
1966	87.1 mm (3.4 in)
1967	94.0 mm (3.7 in)
1968	115.4 mm (4.5 in)
1969	79.5 mm (3.1 in)
1970	58.3 mm (2.3 in)
1971	89.1 mm (3.5 in)
1972	87.5 mm (3.4 in)
1973	85.1 mm (3.4 in)
1974	116.4 mm (4.6 in)
1975	126.3 mm (5.0 in)
1976	63.1 mm (2.5 in)
1977	62.2 mm (2.4 in)
1978	77.8 mm (3.1 in)
1979	55.9 mm (2.2 in)
1980	176.7 mm (7.0 in)
1981	62.2 mm (2.4 in)
1982	78.4 mm (3.1 in)
1983	83.1 mm (3.3 in)
1984	78.2 mm (3.1 in)
1985	60.5 mm (2.4 in)
1986	124.5 mm (4.9 in)
1987	114.0 mm (4.5 in)
1988	100.9 mm (4.0 in)
1989	81.2 mm (3.2 in)
1990	112.1 mm (4.4 in)
1991	102.0 mm (4.0 in)
1992	109.9 mm (4.3 in)
1993	58.5 mm (2.3 in)
1994	148.5 mm (5.8 in)
1995	48.5 mm (1.9 in)
1996	70.2 mm (2.8 in)
1997	91.9 mm (3.6 in)
1998	61.5 mm (2.4 in)
1999	67.9 mm (2.7 in)
2000	107.5 mm (4.2 in)
2001	25.4 mm (1.0 in)
2002	39.9 mm (1.6 in)
2003	81.6 mm (3.2 in)
2004	141.8 mm (5.6 in)
2005	119.6 mm (4.7 in)
2006	37.6 mm (1.5 in)
2007	130.3 mm (5.1 in)
2008	66.1 mm (2.6 in)
2009	34.3 mm (1.4 in)
2010	160.5 mm (6.3 in)
2011	33.8 mm (1.3 in)
2012	158.7 mm (6.2 in)
2013	33.0 mm (1.3 in)
2015	110.5 mm (4.4 in)
2016	195.6 mm (7.7 in)
2017	78.7 mm (3.1 in)
2018	124.2 mm (4.9 in)
2019	80.3 mm (3.2 in)
2020	50.1 mm (2.0 in)
2021	15.2 mm (0.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Big Spring, 1948 to 2021. The record is 102 days in 2011, marked on the chart; the median year is 48 days.

Longest dry spell (CDD) at Big Spring by year
Year	Longest dry spell (CDD)
1948	46 days
1949	65 days
1950	85 days
1951	43 days
1952	48 days
1953	53 days
1954	40 days
1955	41 days
1956	54 days
1957	38 days
1958	44 days
1959	32 days
1960	35 days
1961	49 days
1962	47 days
1963	55 days
1964	39 days
1965	43 days
1966	51 days
1967	41 days
1968	45 days
1969	44 days
1970	64 days
1971	53 days
1972	66 days
1973	81 days
1974	48 days
1975	46 days
1976	67 days
1977	50 days
1978	37 days
1979	38 days
1980	53 days
1981	70 days
1982	66 days
1983	46 days
1984	77 days
1985	47 days
1986	54 days
1987	43 days
1988	68 days
1989	61 days
1990	78 days
1991	59 days
1992	40 days
1993	43 days
1994	43 days
1995	89 days
1996	53 days
1997	28 days
1998	64 days
1999	62 days
2000	68 days
2001	24 days
2002	41 days
2003	46 days
2004	38 days
2005	78 days
2006	54 days
2007	48 days
2008	77 days
2009	39 days
2010	73 days
2011	102 days
2012	55 days
2013	71 days
2015	28 days
2016	68 days
2017	33 days
2018	35 days
2019	41 days
2020	45 days
2021	50 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

48 years with a frost

Across 48 years with a frost, the median last spring frost at Big Spring falls on 21 March and the median first autumn frost on 10 November, which leaves a median of 235 days between them.

Fitted over all years, the growing season changes by +3.2 days per decade at this station.

Frost dates and growing season at Big Spring
Measure	Median, all years	Earliest period	Recent period (1971 to 2019)	Recent against earliest	Fitted trend
Last spring frost	21 March	n/a	19 March	n/a	-2.3 days per decade
First autumn frost	10 November	n/a	12 November	n/a	+0.8 days per decade
Growing days	235 days	n/a	237 days	n/a	+3.2 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

59 years, 1948 to 2019

A day with at least 56.3 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 142.7 mm (5.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Big Spring: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	56.3 mm (2.2 in)
5 years	78.0 mm (3.1 in)
10 years	93.0 mm (3.7 in)
25 years	112.5 mm (4.4 in)
50 years	127.4 mm (5.0 in)
100 years	142.7 mm (5.6 in)	Longer than the 59 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, 59 years of values from 1948 to 2019.

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: 129.3 mm (5.1 in) in 2007; 127.0 mm (5.0 in) in 2012; 122.9 mm (4.8 in) in 1994.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of Big Spring, at 1971 and 1979. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1971 ran 1.1 C (1.9 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1979 ran 0.5 C (1.0 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at Big Spring, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1971	-1.0	-1.9	likely	5
1979	+0.5	+1.0	likely	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for Big Spring standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Big Spring 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).