Big Bar 4 E Weather Records (USC00040738)

Record envelope, standing records and threshold days for Big Bar 4 E (USC00040738), California, United States, with 75 years of record.

Key Facts for Big Bar 4 E

Big Bar 4 E (USC00040738) is a weather station in California, United States at 40.74 latitude and -123.21 longitude, 382 m (1,253 ft) above sea level.
The station reports from 1943 to 2017, 75 years of record.
1,464 records set at Big Bar 4 E still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Big Bar 4 E set a daily record high minimum temperature of 11.1 C (52.0 F) on 23 November 2017.

About the Station

Location: California, United States, 40.74 latitude, -123.21 longitude.
Elevation: 382 m (1,253 ft).
Period of record: 1943 to 2017, 75 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 Bar 4 E. 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 Bar 4 E, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.7 C (71.1 F)	-11.7 C (10.9 F)	n/a	n/a
Feb	27.2 C (81.0 F)	-10.6 C (12.9 F)	n/a	n/a
Mar	31.1 C (88.0 F)	-6.7 C (19.9 F)	n/a	n/a
Apr	36.7 C (98.1 F)	-5.6 C (21.9 F)	n/a	n/a
May	43.3 C (109.9 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	45.0 C (113.0 F)	1.1 C (34.0 F)	n/a	n/a
Jul	46.1 C (115.0 F)	3.3 C (37.9 F)	n/a	n/a
Aug	47.8 C (118.0 F)	3.3 C (37.9 F)	n/a	n/a
Sep	45.0 C (113.0 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	40.6 C (105.1 F)	-6.7 C (19.9 F)	n/a	n/a
Nov	26.7 C (80.1 F)	-10.0 C (14.0 F)	n/a	n/a
Dec	18.9 C (66.0 F)	-17.8 C (0.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Big Bar 4 E still stand. 1955 holds the most, with 45.

Standing records at Big Bar 4 E by the year they were set
Year set	Standing records
1952	28
1953	37
1954	17
1955	45
1956	27
1957	23
1958	17
1959	24
1960	31
1961	27
1962	33
1963	26
1964	26
1965	26
1966	24
1967	28
1968	28
1969	25
1970	27
1971	40
1972	38
1973	26
1974	18
1975	33
1976	29
1977	27
1978	28
1979	14
1980	13
1981	24
1982	11
1983	15
1984	15
1985	19
1986	37
1987	14
1988	17
1989	18
1990	16
1991	42
1992	30
1993	31
1994	27
1995	24
1996	24
1997	15
1998	14
1999	12
2000	12
2001	9
2002	23
2003	14
2004	6
2005	23
2006	13
2007	13
2008	22
2009	16
2010	10
2011	8
2012	18
2013	17
2014	15
2015	36
2016	9
2017	10

All-Time Record Progression

2 new records

2 all-time records were set at Big Bar 4 E between 21 December 1981 and 2 August 1984. Each dot is a new record.

When Big Bar 4 E set new all-time records
Date	Kind	Detail
1981-12-21	Record daily precipitation	Record daily precipitation 184.4 mm (7.3 in)
1984-08-02	Record high minimum temperature	Record high minimum temperature 22.8 C (73.0 F)

Wettest Day of Each Month

Dec: 184.4 mm (7.3 in)

The wettest day on record for each calendar month at Big Bar 4 E. The most was 184.4 mm (7.3 in) on 21 December 1981.

Record daily precipitation for each month at Big Bar 4 E
Month	Record daily precipitation (mm)	Date
Jan	104.1 mm (4.1 in)	18 January 1971
Feb	106.2 mm (4.2 in)	16 February 1982
Mar	68.8 mm (2.7 in)	9 March 1995
Apr	41.9 mm (1.6 in)	28 April 1951
May	53.3 mm (2.1 in)	5 May 2009
Jun	40.1 mm (1.6 in)	29 June 2011
Jul	25.9 mm (1.0 in)	27 July 1944
Aug	68.6 mm (2.7 in)	4 August 2003
Sep	41.9 mm (1.6 in)	25 September 2014
Oct	110.5 mm (4.4 in)	28 October 1950
Nov	82.6 mm (3.3 in)	19 November 1946
Dec	184.4 mm (7.3 in)	21 December 1981

Period of Record Coverage

1952 to 2017

66 years of record at Big Bar 4 E, 1952 to 2017. 28 years have data for under 90 percent of days and are left out of rankings: 1952, 1954, 1964, 1967, 1968, 1970, 1974, 1976 and others.

Days with data per year at Big Bar 4 E
Year	Days with data	Share of year	Complete
1952	273	75%	No
1953	335	92%	Yes
1954	269	74%	No
1955	358	98%	Yes
1956	354	97%	Yes
1957	358	98%	Yes
1958	352	96%	Yes
1959	362	99%	Yes
1960	363	99%	Yes
1961	356	98%	Yes
1962	345	95%	Yes
1963	348	95%	Yes
1964	316	86%	No
1965	364	100%	Yes
1966	354	97%	Yes
1967	305	84%	No
1968	306	84%	No
1969	355	97%	Yes
1970	328	90%	No
1971	363	99%	Yes
1972	362	99%	Yes
1973	336	92%	Yes
1974	300	82%	No
1975	337	92%	Yes
1976	326	89%	No
1977	321	88%	No
1978	357	98%	Yes
1979	340	93%	Yes
1980	319	87%	No
1981	346	95%	Yes
1982	281	77%	No
1983	258	71%	No
1984	240	66%	No
1985	256	70%	No
1986	257	70%	No
1987	208	57%	No
1988	200	55%	No
1989	252	69%	No
1990	250	68%	No
1991	223	61%	No
1992	225	61%	No
1993	228	62%	No
1994	111	30%	No
1995	204	56%	No
1996	366	100%	Yes
1997	365	100%	Yes
1998	358	98%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	362	99%	Yes
2002	364	100%	Yes
2003	361	99%	Yes
2004	358	98%	Yes
2005	365	100%	Yes
2006	362	99%	Yes
2007	365	100%	Yes
2008	361	99%	Yes
2009	362	99%	Yes
2010	266	73%	No
2011	334	92%	Yes
2012	303	83%	No
2013	360	99%	Yes
2014	360	99%	Yes
2015	362	99%	Yes
2016	209	57%	No
2017	297	81%	No

Latest Records

Latest records at Big Bar 4 E
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 November 2017	Big Bar 4 E, US	daily high min	11.1 C (52.0 F)	3.3 C (5.9 F)	47 years	28 of 100 (Routine)
22 November 2017	Big Bar 4 E, US	monthly high min (Tie)	11.7 C (53.1 F)	tie	34 years	6 of 100 (Routine)
21 October 2017	Big Bar 4 E, US	daily low max (Tie)	10.0 C (50.0 F)	tie	38 years	4 of 100 (Routine)
21 September 2017	Big Bar 4 E, US	daily low max	18.3 C (64.9 F)	1.7 C (3.1 F)	44 years	21 of 100 (Routine)
20 September 2017	Big Bar 4 E, US	daily low max	16.1 C (61.0 F)	2.2 C (4.0 F)	10 years	12 of 100 (Routine)
12 September 2017	Big Bar 4 E, US	monthly high min (Tie)	17.8 C (64.0 F)	tie	32 years	6 of 100 (Routine)
7 September 2017	Big Bar 4 E, US	daily rain	7.6 mm (0.30 in)	2.0 mm (0.08 in)	70 years	20 of 100 (Routine)
7 September 2017	Big Bar 4 E, US	daily high min	16.1 C (61.0 F)	1.7 C (3.1 F)	31 years	21 of 100 (Routine)
28 August 2017	Big Bar 4 E, US	daily high min (Tie)	13.3 C (55.9 F)	tie	50 years	5 of 100 (Routine)
22 August 2017	Big Bar 4 E, US	daily high min (Tie)	15.6 C (60.1 F)	tie	40 years	4 of 100 (Routine)
9 August 2017	Big Bar 4 E, US	daily high min	17.2 C (63.0 F)	0.5 C (0.9 F)	39 years	19 of 100 (Routine)
8 August 2017	Big Bar 4 E, US	daily rain	38.6 mm (1.5 in)	12.9 mm (0.5 in)	55 years	37 of 100 (Notable)
11 June 2017	Big Bar 4 E, US	daily low max	15.6 C (60.1 F)	1.1 C (2.0 F)	44 years	20 of 100 (Routine)
10 June 2017	Big Bar 4 E, US	daily low max (Tie)	15.6 C (60.1 F)	tie	64 years	6 of 100 (Routine)
8 June 2017	Big Bar 4 E, US	daily rain	19.3 mm (0.8 in)	5.6 mm (0.22 in)	59 years	20 of 100 (Routine)
3 May 2017	Big Bar 4 E, US	daily high max (Tie)	33.3 C (91.9 F)	tie	51 years	5 of 100 (Routine)
19 April 2017	Big Bar 4 E, US	daily rain (Tie)	27.9 mm (1.1 in)	tie	52 years	5 of 100 (Routine)
6 April 2017	Big Bar 4 E, US	daily rain	38.1 mm (1.5 in)	11.7 mm (0.5 in)	39 years	35 of 100 (Notable)
26 March 2017	Big Bar 4 E, US	daily low max	7.2 C (45.0 F)	0.6 C (1.1 F)	44 years	20 of 100 (Routine)
24 March 2017	Big Bar 4 E, US	daily rain	31.5 mm (1.2 in)	8.6 mm (0.34 in)	67 years	35 of 100 (Notable)

Climate Trend

33 complete years, 1953 to 2015

One stripe for each of 33 complete years at Big Bar 4 E, 1953 to 2015. Blue stripes are years cooler than the station's own mean of 13.6 C (56.5 F); red stripes are warmer. The coolest year was 1971, at 12.1 C (53.7 F), and the warmest was 2014, at 14.7 C (58.5 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Big Bar 4 E as warming stripes, 1953 to 2015
Year	Annual mean temperature	Difference from the station mean
1953	13.3 C	-0.37 C
1955	13.0 C	-0.59 C
1956	13.2 C	-0.39 C
1957	13.2 C	-0.45 C
1959	13.8 C	+0.15 C
1960	14.0 C	+0.41 C
1961	13.8 C	+0.14 C
1962	13.6 C	-0.04 C
1965	13.5 C	-0.14 C
1966	13.5 C	-0.10 C
1967	13.4 C	-0.27 C
1969	13.4 C	-0.27 C
1971	12.1 C	-1.55 C
1972	12.8 C	-0.79 C
1978	13.7 C	+0.11 C
1981	14.5 C	+0.83 C
1996	14.4 C	+0.73 C
1997	13.9 C	+0.30 C
1998	13.6 C	-0.06 C
1999	13.4 C	-0.19 C
2000	14.1 C	+0.43 C
2001	14.2 C	+0.54 C
2002	14.1 C	+0.52 C
2003	14.1 C	+0.45 C
2004	14.1 C	+0.46 C
2005	13.5 C	-0.17 C
2006	13.3 C	-0.37 C
2007	13.3 C	-0.36 C
2008	13.0 C	-0.67 C
2009	13.4 C	-0.22 C
2013	13.3 C	-0.29 C
2014	14.7 C	+1.10 C
2015	14.7 C	+1.03 C

The annual mean temperature here has risen by 0.10 C (0.01 to 0.19) per decade over 1953 to 2015. In Fahrenheit: 0.17 F (0.01 to 0.33) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Big Bar 4 E
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.10 C (0.01 to 0.19) per decade	0.17 F (0.01 to 0.33) per decade	1953 to 2015	33	Rise
Mean daily maximum	0.03 C (-0.10 to 0.17) per decade	0.1 F (-0.2 to 0.3) per decade	1953 to 2015	33	Not clearly different from zero
Mean daily minimum	0.2 C (0.1 to 0.2) per decade	0.3 F (0.1 to 0.4) per decade	1953 to 2015	33	Rise

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

1943 to 2017

Yearly extremes at Big Bar 4 E: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.8 C (118.0 F)	1981	43.3 C (109.9 F)	66
Coldest night (TNn)	-17.8 C (0.0 F)	1972	-6.7 C (19.9 F)	66
Wettest day (Rx1day)	184.4 mm (7.3 in)	1981	61.0 mm (2.4 in)	75
Wettest five days (Rx5day)	274.3 mm (10.8 in)	1964	132.8 mm (5.2 in)	75
Longest dry spell (CDD)	131 days	1960	64 days	75

Hottest day (TXx)

The hottest day of the year at Big Bar 4 E, 1943 to 2017. The record is 47.8 C (118.0 F) in 1981, marked on the chart; the median year is 43.3 C (109.9 F).

Hottest day (TXx) at Big Bar 4 E by year
Year	Hottest day (TXx)
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	43.3 C (109.9 F)
1953	42.2 C (108.0 F)
1954	41.1 C (106.0 F)
1955	45.0 C (113.0 F)
1956	44.4 C (111.9 F)
1957	41.7 C (107.1 F)
1958	43.9 C (111.0 F)
1959	46.7 C (116.1 F)
1960	43.9 C (111.0 F)
1961	45.0 C (113.0 F)
1962	44.4 C (111.9 F)
1963	42.2 C (108.0 F)
1964	44.4 C (111.9 F)
1965	41.7 C (107.1 F)
1966	41.7 C (107.1 F)
1967	43.9 C (111.0 F)
1968	43.3 C (109.9 F)
1969	43.3 C (109.9 F)
1970	42.8 C (109.0 F)
1971	43.9 C (111.0 F)
1972	46.1 C (115.0 F)
1973	43.9 C (111.0 F)
1974	43.3 C (109.9 F)
1975	43.3 C (109.9 F)
1976	41.7 C (107.1 F)
1977	44.4 C (111.9 F)
1978	45.0 C (113.0 F)
1979	44.4 C (111.9 F)
1980	44.4 C (111.9 F)
1981	47.8 C (118.0 F)
1982	42.8 C (109.0 F)
1983	40.6 C (105.1 F)
1984	42.2 C (108.0 F)
1985	42.8 C (109.0 F)
1986	43.3 C (109.9 F)
1987	43.3 C (109.9 F)
1988	44.4 C (111.9 F)
1989	41.1 C (106.0 F)
1990	45.0 C (113.0 F)
1991	45.6 C (114.1 F)
1992	44.4 C (111.9 F)
1993	45.0 C (113.0 F)
1994	43.3 C (109.9 F)
1995	42.8 C (109.0 F)
1996	43.9 C (111.0 F)
1997	43.3 C (109.9 F)
1998	45.6 C (114.1 F)
1999	43.9 C (111.0 F)
2000	41.7 C (107.1 F)
2001	42.2 C (108.0 F)
2002	44.4 C (111.9 F)
2003	43.9 C (111.0 F)
2004	41.7 C (107.1 F)
2005	41.7 C (107.1 F)
2006	42.8 C (109.0 F)
2007	42.2 C (108.0 F)
2008	40.0 C (104.0 F)
2009	41.7 C (107.1 F)
2010	40.0 C (104.0 F)
2011	39.4 C (102.9 F)
2012	41.7 C (107.1 F)
2013	42.8 C (109.0 F)
2014	41.7 C (107.1 F)
2015	42.8 C (109.0 F)
2016	34.4 C (93.9 F)
2017	42.8 C (109.0 F)

Coldest night (TNn)

The coldest night of the year at Big Bar 4 E, 1943 to 2017. The record is -17.8 C (0.0 F) in 1972, marked on the chart; the median year is -6.7 C (19.9 F).

Coldest night (TNn) at Big Bar 4 E by year
Year	Coldest night (TNn)
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	-6.7 C (19.9 F)
1953	-6.7 C (19.9 F)
1954	-2.8 C (27.0 F)
1955	-6.7 C (19.9 F)
1956	-7.2 C (19.0 F)
1957	-10.0 C (14.0 F)
1958	-5.6 C (21.9 F)
1959	-7.2 C (19.0 F)
1960	-7.8 C (18.0 F)
1961	-8.3 C (17.1 F)
1962	-10.6 C (12.9 F)
1963	-10.6 C (12.9 F)
1964	-5.0 C (23.0 F)
1965	-8.3 C (17.1 F)
1966	-6.7 C (19.9 F)
1967	-10.6 C (12.9 F)
1968	-7.2 C (19.0 F)
1969	-6.1 C (21.0 F)
1970	-6.1 C (21.0 F)
1971	-6.7 C (19.9 F)
1972	-17.8 C (0.0 F)
1973	-7.2 C (19.0 F)
1974	-11.1 C (12.0 F)
1975	-4.4 C (24.1 F)
1976	-7.8 C (18.0 F)
1977	-6.7 C (19.9 F)
1978	-8.9 C (16.0 F)
1979	-7.8 C (18.0 F)
1980	-7.8 C (18.0 F)
1981	-2.2 C (28.0 F)
1982	-6.1 C (21.0 F)
1983	-3.9 C (25.0 F)
1984	-3.3 C (26.1 F)
1985	-6.1 C (21.0 F)
1986	-1.1 C (30.0 F)
1987	-6.7 C (19.9 F)
1988	-4.4 C (24.1 F)
1989	-10.6 C (12.9 F)
1990	-13.9 C (7.0 F)
1991	-11.1 C (12.0 F)
1992	-9.4 C (15.1 F)
1993	-10.0 C (14.0 F)
1994	-11.7 C (10.9 F)
1995	-4.4 C (24.1 F)
1996	-2.8 C (27.0 F)
1997	-6.7 C (19.9 F)
1998	-10.6 C (12.9 F)
1999	-3.3 C (26.1 F)
2000	-3.9 C (25.0 F)
2001	-5.6 C (21.9 F)
2002	-5.6 C (21.9 F)
2003	-4.4 C (24.1 F)
2004	-3.9 C (25.0 F)
2005	-2.2 C (28.0 F)
2006	-6.1 C (21.0 F)
2007	-8.9 C (16.0 F)
2008	-5.0 C (23.0 F)
2009	-9.4 C (15.1 F)
2010	-4.4 C (24.1 F)
2011	-5.6 C (21.9 F)
2012	-7.2 C (19.0 F)
2013	-11.1 C (12.0 F)
2014	-6.7 C (19.9 F)
2015	-7.8 C (18.0 F)
2016	-7.2 C (19.0 F)
2017	-5.0 C (23.0 F)

Wettest day (Rx1day)

The wettest day of the year at Big Bar 4 E, 1943 to 2017. The record is 184.4 mm (7.3 in) in 1981, marked on the chart; the median year is 61.0 mm (2.4 in).

Wettest day (Rx1day) at Big Bar 4 E by year
Year	Wettest day (Rx1day)
1943	50.8 mm (2.0 in)
1944	40.6 mm (1.6 in)
1945	64.0 mm (2.5 in)
1946	82.6 mm (3.3 in)
1947	59.9 mm (2.4 in)
1948	33.3 mm (1.3 in)
1949	30.0 mm (1.2 in)
1950	110.5 mm (4.4 in)
1951	94.5 mm (3.7 in)
1952	91.4 mm (3.6 in)
1953	94.0 mm (3.7 in)
1954	77.5 mm (3.1 in)
1955	78.7 mm (3.1 in)
1956	99.8 mm (3.9 in)
1957	56.9 mm (2.2 in)
1958	53.3 mm (2.1 in)
1959	44.5 mm (1.8 in)
1960	70.6 mm (2.8 in)
1961	49.0 mm (1.9 in)
1962	81.3 mm (3.2 in)
1963	46.5 mm (1.8 in)
1964	93.2 mm (3.7 in)
1965	42.7 mm (1.7 in)
1966	71.4 mm (2.8 in)
1967	44.5 mm (1.8 in)
1968	79.8 mm (3.1 in)
1969	88.9 mm (3.5 in)
1970	101.9 mm (4.0 in)
1971	104.1 mm (4.1 in)
1972	46.7 mm (1.8 in)
1973	44.2 mm (1.7 in)
1974	82.8 mm (3.3 in)
1975	94.2 mm (3.7 in)
1976	52.1 mm (2.1 in)
1977	67.8 mm (2.7 in)
1978	37.6 mm (1.5 in)
1979	80.5 mm (3.2 in)
1980	56.6 mm (2.2 in)
1981	184.4 mm (7.3 in)
1982	106.2 mm (4.2 in)
1983	86.9 mm (3.4 in)
1984	46.7 mm (1.8 in)
1985	54.1 mm (2.1 in)
1986	73.7 mm (2.9 in)
1987	115.6 mm (4.6 in)
1988	69.3 mm (2.7 in)
1989	33.8 mm (1.3 in)
1990	48.0 mm (1.9 in)
1991	31.0 mm (1.2 in)
1992	46.2 mm (1.8 in)
1993	104.1 mm (4.1 in)
1994	58.9 mm (2.3 in)
1995	86.9 mm (3.4 in)
1996	78.5 mm (3.1 in)
1997	61.0 mm (2.4 in)
1998	46.2 mm (1.8 in)
1999	57.7 mm (2.3 in)
2000	38.4 mm (1.5 in)
2001	50.8 mm (2.0 in)
2002	80.3 mm (3.2 in)
2003	68.6 mm (2.7 in)
2004	68.1 mm (2.7 in)
2005	71.1 mm (2.8 in)
2006	37.6 mm (1.5 in)
2007	40.6 mm (1.6 in)
2008	63.0 mm (2.5 in)
2009	53.3 mm (2.1 in)
2010	42.7 mm (1.7 in)
2011	40.1 mm (1.6 in)
2012	63.5 mm (2.5 in)
2013	36.1 mm (1.4 in)
2014	57.9 mm (2.3 in)
2015	80.0 mm (3.1 in)
2016	59.4 mm (2.3 in)
2017	57.7 mm (2.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Big Bar 4 E, 1943 to 2017. The record is 274.3 mm (10.8 in) in 1964, marked on the chart; the median year is 132.8 mm (5.2 in).

Wettest five days (Rx5day) at Big Bar 4 E by year
Year	Wettest five days (Rx5day)
1943	80.6 mm (3.2 in)
1944	108.0 mm (4.3 in)
1945	120.7 mm (4.8 in)
1946	135.5 mm (5.3 in)
1947	90.0 mm (3.5 in)
1948	81.3 mm (3.2 in)
1949	67.9 mm (2.7 in)
1950	225.0 mm (8.9 in)
1951	192.3 mm (7.6 in)
1952	195.8 mm (7.7 in)
1953	184.7 mm (7.3 in)
1954	155.7 mm (6.1 in)
1955	268.1 mm (10.6 in)
1956	210.5 mm (8.3 in)
1957	162.7 mm (6.4 in)
1958	155.4 mm (6.1 in)
1959	142.7 mm (5.6 in)
1960	184.3 mm (7.3 in)
1961	101.4 mm (4.0 in)
1962	171.5 mm (6.8 in)
1963	119.4 mm (4.7 in)
1964	274.3 mm (10.8 in)
1965	125.4 mm (4.9 in)
1966	178.5 mm (7.0 in)
1967	55.9 mm (2.2 in)
1968	132.3 mm (5.2 in)
1969	64.0 mm (2.5 in)
1970	223.4 mm (8.8 in)
1971	129.0 mm (5.1 in)
1972	135.4 mm (5.3 in)
1973	96.6 mm (3.8 in)
1974	166.0 mm (6.5 in)
1975	161.0 mm (6.3 in)
1976	78.2 mm (3.1 in)
1977	164.0 mm (6.5 in)
1978	85.1 mm (3.4 in)
1979	114.3 mm (4.5 in)
1980	141.9 mm (5.6 in)
1981	185.9 mm (7.3 in)
1982	137.1 mm (5.4 in)
1983	99.4 mm (3.9 in)
1984	55.4 mm (2.2 in)
1985	80.7 mm (3.2 in)
1986	95.0 mm (3.7 in)
1987	86.8 mm (3.4 in)
1988	56.7 mm (2.2 in)
1989	37.6 mm (1.5 in)
1990	78.0 mm (3.1 in)
1991	36.6 mm (1.4 in)
1992	53.8 mm (2.1 in)
1993	137.8 mm (5.4 in)
1994	39.4 mm (1.6 in)
1995	202.7 mm (8.0 in)
1996	153.7 mm (6.1 in)
1997	203.0 mm (8.0 in)
1998	132.8 mm (5.2 in)
1999	136.5 mm (5.4 in)
2000	86.2 mm (3.4 in)
2001	121.4 mm (4.8 in)
2002	237.5 mm (9.4 in)
2003	166.7 mm (6.6 in)
2004	126.6 mm (5.0 in)
2005	205.2 mm (8.1 in)
2006	180.6 mm (7.1 in)
2007	87.8 mm (3.5 in)
2008	155.0 mm (6.1 in)
2009	88.7 mm (3.5 in)
2010	99.3 mm (3.9 in)
2011	92.3 mm (3.6 in)
2012	163.3 mm (6.4 in)
2013	38.9 mm (1.5 in)
2014	81.6 mm (3.2 in)
2015	174.7 mm (6.9 in)
2016	139.4 mm (5.5 in)
2017	159.1 mm (6.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Big Bar 4 E, 1943 to 2017. The record is 131 days in 1960, marked on the chart; the median year is 64 days.

Longest dry spell (CDD) at Big Bar 4 E by year
Year	Longest dry spell (CDD)
1943	13 days
1944	31 days
1945	87 days
1946	59 days
1947	38 days
1948	47 days
1949	59 days
1950	83 days
1951	100 days
1952	77 days
1953	55 days
1954	71 days
1955	93 days
1956	72 days
1957	62 days
1958	35 days
1959	43 days
1960	131 days
1961	63 days
1962	71 days
1963	47 days
1964	89 days
1965	57 days
1966	50 days
1967	81 days
1968	63 days
1969	69 days
1970	120 days
1971	35 days
1972	65 days
1973	69 days
1974	81 days
1975	54 days
1976	82 days
1977	42 days
1978	62 days
1979	41 days
1980	96 days
1981	128 days
1982	78 days
1983	29 days
1984	100 days
1985	44 days
1986	116 days
1987	59 days
1988	98 days
1989	53 days
1990	32 days
1991	35 days
1992	65 days
1993	73 days
1994	29 days
1995	69 days
1996	58 days
1997	26 days
1998	88 days
1999	64 days
2000	83 days
2001	75 days
2002	106 days
2003	64 days
2004	90 days
2005	105 days
2006	70 days
2007	74 days
2008	102 days
2009	51 days
2010	52 days
2011	56 days
2012	74 days
2013	56 days
2014	56 days
2015	49 days
2016	18 days
2017	23 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

33 years with a frost

Across 33 years with a frost, the median last spring frost at Big Bar 4 E falls on 28 April and the median first autumn frost on 28 October, which leaves a median of 185 days between them.

Fitted over all years, the growing season changes by +7.2 days per decade at this station.

Frost dates and growing season at Big Bar 4 E
Measure	Median, all years	Earliest period	Recent period (1957 to 2015)	Recent against earliest	Fitted trend
Last spring frost	28 April	n/a	22 April	n/a	-5.3 days per decade
First autumn frost	28 October	n/a	29 October	n/a	+1.9 days per decade
Growing days	185 days	n/a	194 days	n/a	+7.2 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

55 years, 1944 to 2015

A day with at least 62.9 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 149.9 mm (5.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Big Bar 4 E: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	62.9 mm (2.5 in)
5 years	85.7 mm (3.4 in)
10 years	101.0 mm (4.0 in)
25 years	120.6 mm (4.7 in)
50 years	135.2 mm (5.3 in)
100 years	149.9 mm (5.9 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 1944 to 2015.

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: 184.4 mm (7.3 in) in 1981; 110.5 mm (4.4 in) in 1950; 104.1 mm (4.1 in) in 1971.

Download the Data

Data for Big Bar 4 E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Big Bar 4 E 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).