Posey 3 E Weather Records (USC00047096)

Record envelope, standing records and threshold days for Posey 3 E (USC00047096), California, United States, with 34 years of record.

Key Facts for Posey 3 E

Posey 3 E (USC00047096) is a weather station in California, United States at 35.80 latitude and -118.63 longitude, 1,512 m (4,960 ft) above sea level.
The station reports from 1954 to 1987, 34 years of record.
1,464 records set at Posey 3 E still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Posey 3 E set a daily record low maximum temperature of 0.6 C (33.1 F) on 22 March 1987.

About the Station

Location: California, United States, 35.80 latitude, -118.63 longitude.
Elevation: 1,512 m (4,960 ft).
Period of record: 1954 to 1987, 34 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 Posey 3 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 Posey 3 E, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	20.6 C (69.1 F)	-15.0 C (5.0 F)	n/a	n/a
Feb	21.7 C (71.1 F)	-11.7 C (10.9 F)	n/a	n/a
Mar	25.6 C (78.1 F)	-12.8 C (9.0 F)	n/a	n/a
Apr	26.7 C (80.1 F)	-9.4 C (15.1 F)	n/a	n/a
May	32.2 C (90.0 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	38.3 C (100.9 F)	1.1 C (34.0 F)	n/a	n/a
Aug	34.4 C (93.9 F)	2.2 C (36.0 F)	n/a	n/a
Sep	36.1 C (97.0 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	31.7 C (89.1 F)	-8.9 C (16.0 F)	n/a	n/a
Nov	26.1 C (79.0 F)	-12.8 C (9.0 F)	n/a	n/a
Dec	24.4 C (75.9 F)	-17.2 C (1.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Posey 3 E still stand. 1955 holds the most, with 87.

Standing records at Posey 3 E by the year they were set
Year set	Standing records
1954	25
1955	87
1956	65
1957	62
1958	73
1959	50
1960	50
1962	39
1963	47
1964	52
1965	68
1966	57
1967	65
1968	24
1969	24
1970	40
1971	56
1972	59
1973	30
1974	28
1975	45
1976	43
1977	28
1978	23
1979	27
1980	57
1981	24
1982	37
1983	34
1984	51
1985	47
1986	43
1987	4

Wettest Day of Each Month

Dec: 175.0 mm (6.9 in)

The wettest day on record for each calendar month at Posey 3 E. The most was 175.0 mm (6.9 in) on 5 December 1966.

Record daily precipitation for each month at Posey 3 E
Month	Record daily precipitation (mm)	Date
Jan	101.6 mm (4.0 in)	16 January 1970
Feb	104.1 mm (4.1 in)	1 February 1963
Mar	78.0 mm (3.1 in)	5 March 1983
Apr	97.8 mm (3.9 in)	1 April 1974
May	69.1 mm (2.7 in)	19 May 1957
Jun	50.8 mm (2.0 in)	30 June 1982
Jul	5.6 mm (0.22 in)	29 July 1958
Aug	49.5 mm (1.9 in)	29 August 1972
Sep	42.2 mm (1.7 in)	6 September 1978
Oct	61.7 mm (2.4 in)	14 October 1957
Nov	103.4 mm (4.1 in)	30 November 1982
Dec	175.0 mm (6.9 in)	5 December 1966

Period of Record Coverage

1954 to 1987

33 years of record at Posey 3 E, 1954 to 1987. 12 years have data for under 90 percent of days and are left out of rankings: 1954, 1959, 1960, 1962, 1965, 1969, 1970, 1973 and others.

Days with data per year at Posey 3 E
Year	Days with data	Share of year	Complete
1954	101	28%	No
1955	360	99%	Yes
1956	365	100%	Yes
1957	365	100%	Yes
1958	355	97%	Yes
1959	305	84%	No
1960	234	64%	No
1962	258	71%	No
1963	358	98%	Yes
1964	332	91%	Yes
1965	291	80%	No
1966	336	92%	Yes
1967	332	91%	Yes
1968	333	91%	Yes
1969	325	89%	No
1970	314	86%	No
1971	338	93%	Yes
1972	353	96%	Yes
1973	303	83%	No
1974	342	94%	Yes
1975	349	96%	Yes
1976	353	96%	Yes
1977	343	94%	Yes
1978	353	97%	Yes
1979	310	85%	No
1980	343	94%	Yes
1981	327	90%	No
1982	334	92%	Yes
1983	337	92%	Yes
1984	323	88%	No
1985	332	91%	Yes
1986	338	93%	Yes
1987	65	18%	No

Latest Records

Latest records at Posey 3 E
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 March 1987	Posey 3 E, US	daily low max	0.6 C (33.1 F)	1.1 C (2.0 F)	4 years	6 of 100 (Routine)
22 March 1987	Posey 3 E, US	monthly snowfall (Tie)	35.6 cm (14.0 in)	tie	24 years	5 of 100 (Routine)
16 March 1987	Posey 3 E, US	daily snow depth	35.6 cm (14.0 in)	20.4 cm (8.0 in)	24 years	24 of 100 (Routine)
16 March 1987	Posey 3 E, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	0 years	0 of 100 (Routine)
15 March 1987	Posey 3 E, US	daily snowfall	30.5 cm (12.0 in)	16.5 cm (6.5 in)	24 years	32 of 100 (Routine)
15 March 1987	Posey 3 E, US	daily snow depth	30.5 cm (12.0 in)	15.3 cm (6.0 in)	28 years	21 of 100 (Routine)
15 March 1987	Posey 3 E, US	daily rain	26.2 mm (1.0 in)	1.8 mm (0.07 in)	28 years	12 of 100 (Routine)
5 March 1987	Posey 3 E, US	daily high min (Tie)	2.8 C (37.0 F)	tie	0 years	0 of 100 (Routine)
4 March 1987	Posey 3 E, US	daily high min (Tie)	2.2 C (36.0 F)	tie	8 years	1 of 100 (Routine)
3 March 1987	Posey 3 E, US	daily high min (Tie)	2.8 C (37.0 F)	tie	0 years	0 of 100 (Routine)
2 March 1987	Posey 3 E, US	daily high min (Tie)	3.3 C (37.9 F)	tie	0 years	0 of 100 (Routine)
1 March 1987	Posey 3 E, US	daily low max (Tie)	5.0 C (41.0 F)	tie	20 years	2 of 100 (Routine)
24 February 1987	Posey 3 E, US	daily low min	-9.4 C (15.1 F)	2.2 C (4.0 F)	27 years	17 of 100 (Routine)
26 January 1987	Posey 3 E, US	daily high max (Tie)	18.3 C (64.9 F)	tie	16 years	1 of 100 (Routine)
9 January 1987	Posey 3 E, US	daily low max	3.9 C (39.0 F)	1.1 C (2.0 F)	13 years	9 of 100 (Routine)
7 January 1987	Posey 3 E, US	daily snow depth	48.3 cm (19.0 in)	35.6 cm (14.0 in)	21 years	32 of 100 (Routine)
7 January 1987	Posey 3 E, US	daily snowfall	25.4 cm (10.0 in)	12.7 cm (5.0 in)	21 years	22 of 100 (Routine)
7 January 1987	Posey 3 E, US	daily rain	26.7 mm (1.1 in)	3.8 mm (0.15 in)	21 years	10 of 100 (Routine)
6 January 1987	Posey 3 E, US	daily snow depth	30.5 cm (12.0 in)	17.8 cm (7.0 in)	20 years	20 of 100 (Routine)
6 January 1987	Posey 3 E, US	daily snowfall	20.3 cm (8.0 in)	13.9 cm (5.5 in)	9 years	19 of 100 (Routine)

Climate Trend

10 complete years, 1955 to 1983

One stripe for each of 10 complete years at Posey 3 E, 1955 to 1983. Blue stripes are years cooler than the station's own mean of 10.2 C (50.4 F); red stripes are warmer. The coolest year was 1983, at 9.5 C (49.2 F), and the warmest was 1958, at 11.2 C (52.2 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Posey 3 E as warming stripes, 1955 to 1983
Year	Annual mean temperature	Difference from the station mean
1955	9.8 C	-0.45 C
1956	10.5 C	+0.23 C
1957	10.1 C	-0.12 C
1958	11.2 C	+0.98 C
1963	10.2 C	0.00 C
1968	10.5 C	+0.27 C
1972	10.0 C	-0.26 C
1975	10.2 C	-0.03 C
1976	10.4 C	+0.11 C
1983	9.5 C	-0.70 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

1954 to 1987

Yearly extremes at Posey 3 E: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	1973	33.3 C (91.9 F)	33
Coldest night (TNn)	-17.2 C (1.0 F)	1972	-11.1 C (12.0 F)	33
Wettest day (Rx1day)	175.0 mm (6.9 in)	1966	67.6 mm (2.7 in)	33
Wettest five days (Rx5day)	392.4 mm (15.4 in)	1966	118.9 mm (4.7 in)	33
Longest dry spell (CDD)	189 days	1955	100 days	33

Hottest day (TXx)

The hottest day of the year at Posey 3 E, 1954 to 1987. The record is 38.3 C (100.9 F) in 1973, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at Posey 3 E by year
Year	Hottest day (TXx)
1954	28.9 C (84.0 F)
1955	36.1 C (97.0 F)
1956	32.2 C (90.0 F)
1957	33.3 C (91.9 F)
1958	33.3 C (91.9 F)
1959	34.4 C (93.9 F)
1960	35.6 C (96.1 F)
1962	33.3 C (91.9 F)
1963	31.7 C (89.1 F)
1964	32.2 C (90.0 F)
1965	32.2 C (90.0 F)
1966	33.3 C (91.9 F)
1967	33.3 C (91.9 F)
1968	33.3 C (91.9 F)
1969	32.2 C (90.0 F)
1970	32.8 C (91.0 F)
1971	34.4 C (93.9 F)
1972	35.6 C (96.1 F)
1973	38.3 C (100.9 F)
1974	33.3 C (91.9 F)
1975	33.9 C (93.0 F)
1976	33.3 C (91.9 F)
1977	32.8 C (91.0 F)
1978	33.9 C (93.0 F)
1979	33.3 C (91.9 F)
1980	33.3 C (91.9 F)
1981	33.9 C (93.0 F)
1982	32.2 C (90.0 F)
1983	35.6 C (96.1 F)
1984	32.8 C (91.0 F)
1985	31.7 C (89.1 F)
1986	30.6 C (87.1 F)
1987	20.0 C (68.0 F)

Coldest night (TNn)

The coldest night of the year at Posey 3 E, 1954 to 1987. The record is -17.2 C (1.0 F) in 1972, marked on the chart; the median year is -11.1 C (12.0 F).

Coldest night (TNn) at Posey 3 E by year
Year	Coldest night (TNn)
1954	-11.1 C (12.0 F)
1955	-11.7 C (10.9 F)
1956	-10.0 C (14.0 F)
1957	-15.0 C (5.0 F)
1958	-12.8 C (9.0 F)
1959	-11.7 C (10.9 F)
1960	-14.4 C (6.1 F)
1962	-11.1 C (12.0 F)
1963	-12.8 C (9.0 F)
1964	-12.2 C (10.0 F)
1965	-15.0 C (5.0 F)
1966	-12.8 C (9.0 F)
1967	-12.8 C (9.0 F)
1968	-12.2 C (10.0 F)
1969	-13.3 C (8.1 F)
1970	-9.4 C (15.1 F)
1971	-13.3 C (8.1 F)
1972	-17.2 C (1.0 F)
1973	-11.1 C (12.0 F)
1974	-10.6 C (12.9 F)
1975	-11.1 C (12.0 F)
1976	-8.9 C (16.0 F)
1977	-8.9 C (16.0 F)
1978	-12.2 C (10.0 F)
1979	-12.2 C (10.0 F)
1980	-6.1 C (21.0 F)
1981	-6.7 C (19.9 F)
1982	-10.6 C (12.9 F)
1983	-8.9 C (16.0 F)
1984	-11.1 C (12.0 F)
1985	-9.4 C (15.1 F)
1986	-6.1 C (21.0 F)
1987	-9.4 C (15.1 F)

Wettest day (Rx1day)

The wettest day of the year at Posey 3 E, 1954 to 1987. The record is 175.0 mm (6.9 in) in 1966, marked on the chart; the median year is 67.6 mm (2.7 in).

Wettest day (Rx1day) at Posey 3 E by year
Year	Wettest day (Rx1day)
1954	48.0 mm (1.9 in)
1955	84.6 mm (3.3 in)
1956	72.9 mm (2.9 in)
1957	69.1 mm (2.7 in)
1958	49.5 mm (1.9 in)
1959	35.6 mm (1.4 in)
1960	82.0 mm (3.2 in)
1962	22.9 mm (0.9 in)
1963	104.1 mm (4.1 in)
1964	68.8 mm (2.7 in)
1965	51.3 mm (2.0 in)
1966	175.0 mm (6.9 in)
1967	45.2 mm (1.8 in)
1968	56.9 mm (2.2 in)
1969	92.2 mm (3.6 in)
1970	101.6 mm (4.0 in)
1971	67.3 mm (2.6 in)
1972	62.2 mm (2.4 in)
1973	78.7 mm (3.1 in)
1974	97.8 mm (3.9 in)
1975	45.5 mm (1.8 in)
1976	50.8 mm (2.0 in)
1977	53.3 mm (2.1 in)
1978	75.7 mm (3.0 in)
1979	56.6 mm (2.2 in)
1980	91.4 mm (3.6 in)
1981	62.2 mm (2.4 in)
1982	103.4 mm (4.1 in)
1983	86.6 mm (3.4 in)
1984	57.4 mm (2.3 in)
1985	67.6 mm (2.7 in)
1986	75.2 mm (3.0 in)
1987	45.2 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Posey 3 E, 1954 to 1987. The record is 392.4 mm (15.4 in) in 1966, marked on the chart; the median year is 118.9 mm (4.7 in).

Wettest five days (Rx5day) at Posey 3 E by year
Year	Wettest five days (Rx5day)
1954	59.0 mm (2.3 in)
1955	117.9 mm (4.6 in)
1956	196.1 mm (7.7 in)
1957	123.4 mm (4.9 in)
1958	102.3 mm (4.0 in)
1959	80.8 mm (3.2 in)
1960	122.7 mm (4.8 in)
1962	25.7 mm (1.0 in)
1963	205.0 mm (8.1 in)
1964	141.5 mm (5.6 in)
1965	114.1 mm (4.5 in)
1966	392.4 mm (15.4 in)
1967	92.7 mm (3.6 in)
1968	93.0 mm (3.7 in)
1969	172.0 mm (6.8 in)
1970	189.8 mm (7.5 in)
1971	86.5 mm (3.4 in)
1972	142.7 mm (5.6 in)
1973	133.8 mm (5.3 in)
1974	118.9 mm (4.7 in)
1975	80.5 mm (3.2 in)
1976	100.5 mm (4.0 in)
1977	129.3 mm (5.1 in)
1978	130.3 mm (5.1 in)
1979	107.0 mm (4.2 in)
1980	307.1 mm (12.1 in)
1981	77.5 mm (3.1 in)
1982	199.7 mm (7.9 in)
1983	152.9 mm (6.0 in)
1984	91.4 mm (3.6 in)
1985	110.5 mm (4.4 in)
1986	169.5 mm (6.7 in)
1987	113.8 mm (4.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Posey 3 E, 1954 to 1987. The record is 189 days in 1955, marked on the chart; the median year is 100 days.

Longest dry spell (CDD) at Posey 3 E by year
Year	Longest dry spell (CDD)
1954	50 days
1955	189 days
1956	144 days
1957	98 days
1958	55 days
1959	75 days
1960	118 days
1962	103 days
1963	54 days
1964	82 days
1965	79 days
1966	143 days
1967	106 days
1968	152 days
1969	78 days
1970	100 days
1971	124 days
1972	80 days
1973	111 days
1974	135 days
1975	163 days
1976	89 days
1977	69 days
1978	130 days
1979	84 days
1980	142 days
1981	106 days
1982	78 days
1983	104 days
1984	87 days
1985	99 days
1986	140 days
1987	20 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 Posey 3 E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Posey 3 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 2026-10-17 (17 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).