Oroville 7 SE Weather Records (USC00048099)

Record envelope, standing records and threshold days for Oroville 7 SE (USC00048099), California, United States, with 31 years of record.

Key Facts for Oroville 7 SE

Oroville 7 SE (USC00048099) is a weather station in California, United States at 39.42 latitude and -121.47 longitude, 192 m (630 ft) above sea level.
The station reports from 1919 to 1949, 31 years of record.
1,464 records set at Oroville 7 SE still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: California, United States, 39.42 latitude, -121.47 longitude.
Elevation: 192 m (630 ft).
Period of record: 1919 to 1949, 31 years.
Eligible elements: none yet.

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 Oroville 7 SE. 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 Oroville 7 SE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	24.4 C (75.9 F)	-7.8 C (18.0 F)	n/a	n/a
Feb	25.0 C (77.0 F)	-4.4 C (24.1 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-1.7 C (28.9 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-1.1 C (30.0 F)	n/a	n/a
May	40.0 C (104.0 F)	1.1 C (34.0 F)	n/a	n/a
Jun	44.4 C (111.9 F)	6.1 C (43.0 F)	n/a	n/a
Jul	45.0 C (113.0 F)	8.3 C (46.9 F)	n/a	n/a
Aug	46.1 C (115.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	43.3 C (109.9 F)	6.1 C (43.0 F)	n/a	n/a
Oct	38.3 C (100.9 F)	0.6 C (33.1 F)	n/a	n/a
Nov	30.6 C (87.1 F)	-2.2 C (28.0 F)	n/a	n/a
Dec	27.8 C (82.0 F)	-8.9 C (16.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Oroville 7 SE still stand. 1923 holds the most, with 70.

Standing records at Oroville 7 SE by the year they were set
Year set	Standing records
1919	13
1920	56
1921	55
1922	53
1923	70
1924	63
1925	55
1926	54
1927	53
1928	45
1929	58
1930	49
1931	66
1932	48
1933	61
1934	58
1935	43
1936	53
1937	45
1938	35
1939	56
1940	24
1941	36
1942	31
1943	44
1944	44
1945	45
1946	39
1947	35
1948	51
1949	26

Wettest Day of Each Month

Dec: 113.0 mm (4.4 in)

The wettest day on record for each calendar month at Oroville 7 SE. The most was 113.0 mm (4.4 in) on 10 December 1937.

Record daily precipitation for each month at Oroville 7 SE
Month	Record daily precipitation (mm)	Date
Jan	61.7 mm (2.4 in)	30 January 1943
Feb	78.5 mm (3.1 in)	13 February 1937
Mar	81.8 mm (3.2 in)	10 March 1943
Apr	88.4 mm (3.5 in)	5 April 1926
May	104.4 mm (4.1 in)	29 May 1932
Jun	35.8 mm (1.4 in)	16 June 1931
Jul	3.3 mm (0.13 in)	26 July 1946
Aug	5.8 mm (0.23 in)	11 August 1925
Sep	31.8 mm (1.3 in)	27 September 1938
Oct	61.5 mm (2.4 in)	10 October 1926
Nov	72.4 mm (2.9 in)	18 November 1920
Dec	113.0 mm (4.4 in)	10 December 1937

Period of Record Coverage

1919 to 1949

31 years of record at Oroville 7 SE, 1919 to 1949. 3 years have data for under 90 percent of days and are left out of rankings: 1919, 1927, 1949.

Days with data per year at Oroville 7 SE
Year	Days with data	Share of year	Complete
1919	61	17%	No
1920	366	100%	Yes
1921	361	99%	Yes
1922	364	100%	Yes
1923	364	100%	Yes
1924	366	100%	Yes
1925	364	100%	Yes
1926	364	100%	Yes
1927	326	89%	No
1928	353	96%	Yes
1929	364	100%	Yes
1930	363	99%	Yes
1931	365	100%	Yes
1932	365	100%	Yes
1933	365	100%	Yes
1934	365	100%	Yes
1935	365	100%	Yes
1936	365	100%	Yes
1937	364	100%	Yes
1938	364	100%	Yes
1939	365	100%	Yes
1940	335	92%	Yes
1941	364	100%	Yes
1942	364	100%	Yes
1943	364	100%	Yes
1944	366	100%	Yes
1945	363	99%	Yes
1946	365	100%	Yes
1947	365	100%	Yes
1948	363	99%	Yes
1949	169	46%	No

Latest Records

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

Climate Trend

27 complete years, 1920 to 1948

One stripe for each of 27 complete years at Oroville 7 SE, 1920 to 1948. Blue stripes are years cooler than the station's own mean of 16.6 C (61.9 F); red stripes are warmer. The coolest year was 1948, at 15.1 C (59.1 F), and the warmest was 1934, at 17.8 C (64.0 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Oroville 7 SE as warming stripes, 1920 to 1948
Year	Annual mean temperature	Difference from the station mean
1920	16.1 C	-0.54 C
1921	16.9 C	+0.31 C
1922	15.7 C	-0.89 C
1923	16.5 C	-0.10 C
1924	16.6 C	-0.06 C
1925	16.3 C	-0.31 C
1926	17.4 C	+0.74 C
1928	16.4 C	-0.22 C
1929	16.7 C	+0.06 C
1930	16.4 C	-0.27 C
1931	17.6 C	+0.93 C
1932	16.9 C	+0.27 C
1933	16.3 C	-0.30 C
1934	17.8 C	+1.18 C
1935	16.5 C	-0.11 C
1936	17.8 C	+1.15 C
1937	16.7 C	+0.11 C
1938	16.4 C	-0.26 C
1939	17.0 C	+0.42 C
1941	16.8 C	+0.18 C
1942	16.4 C	-0.23 C
1943	16.9 C	+0.23 C
1944	16.6 C	-0.07 C
1945	16.8 C	+0.13 C
1946	16.1 C	-0.53 C
1947	16.5 C	-0.16 C
1948	15.1 C	-1.54 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

1919 to 1949

Yearly extremes at Oroville 7 SE: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.1 C (115.0 F)	1933	42.8 C (109.0 F)	31
Coldest night (TNn)	-8.9 C (16.0 F)	1932	-3.3 C (26.1 F)	31
Wettest day (Rx1day)	113.0 mm (4.4 in)	1937	55.1 mm (2.2 in)	31
Wettest five days (Rx5day)	214.1 mm (8.4 in)	1929	118.6 mm (4.7 in)	31
Longest dry spell (CDD)	154 days	1932	102 days	31

Hottest day (TXx)

The hottest day of the year at Oroville 7 SE, 1919 to 1949. The record is 46.1 C (115.0 F) in 1933, marked on the chart; the median year is 42.8 C (109.0 F).

Hottest day (TXx) at Oroville 7 SE by year
Year	Hottest day (TXx)
1919	23.3 C (73.9 F)
1920	42.8 C (109.0 F)
1921	42.2 C (108.0 F)
1922	41.7 C (107.1 F)
1923	42.8 C (109.0 F)
1924	40.6 C (105.1 F)
1925	43.9 C (111.0 F)
1926	42.8 C (109.0 F)
1927	42.2 C (108.0 F)
1928	41.1 C (106.0 F)
1929	44.4 C (111.9 F)
1930	42.2 C (108.0 F)
1931	43.9 C (111.0 F)
1932	41.1 C (106.0 F)
1933	46.1 C (115.0 F)
1934	44.4 C (111.9 F)
1935	43.3 C (109.9 F)
1936	43.9 C (111.0 F)
1937	43.3 C (109.9 F)
1938	45.0 C (113.0 F)
1939	42.8 C (109.0 F)
1940	41.7 C (107.1 F)
1941	42.8 C (109.0 F)
1942	43.9 C (111.0 F)
1943	42.2 C (108.0 F)
1944	43.3 C (109.9 F)
1945	42.8 C (109.0 F)
1946	42.8 C (109.0 F)
1947	41.7 C (107.1 F)
1948	41.7 C (107.1 F)
1949	41.7 C (107.1 F)

Coldest night (TNn)

The coldest night of the year at Oroville 7 SE, 1919 to 1949. The record is -8.9 C (16.0 F) in 1932, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at Oroville 7 SE by year
Year	Coldest night (TNn)
1919	-3.9 C (25.0 F)
1920	-0.6 C (30.9 F)
1921	-1.1 C (30.0 F)
1922	-5.0 C (23.0 F)
1923	-2.2 C (28.0 F)
1924	-5.6 C (21.9 F)
1925	-2.2 C (28.0 F)
1926	-2.2 C (28.0 F)
1927	-1.7 C (28.9 F)
1928	-6.1 C (21.0 F)
1929	-5.0 C (23.0 F)
1930	-4.4 C (24.1 F)
1931	-2.2 C (28.0 F)
1932	-8.9 C (16.0 F)
1933	-3.9 C (25.0 F)
1934	-1.1 C (30.0 F)
1935	-4.4 C (24.1 F)
1936	-1.7 C (28.9 F)
1937	-7.8 C (18.0 F)
1938	-2.2 C (28.0 F)
1939	-3.3 C (26.1 F)
1940	-2.2 C (28.0 F)
1941	0.0 C (32.0 F)
1942	-4.4 C (24.1 F)
1943	-3.3 C (26.1 F)
1944	-1.1 C (30.0 F)
1945	-2.8 C (27.0 F)
1946	-2.8 C (27.0 F)
1947	-3.3 C (26.1 F)
1948	-5.0 C (23.0 F)
1949	-6.7 C (19.9 F)

Wettest day (Rx1day)

The wettest day of the year at Oroville 7 SE, 1919 to 1949. The record is 113.0 mm (4.4 in) in 1937, marked on the chart; the median year is 55.1 mm (2.2 in).

Wettest day (Rx1day) at Oroville 7 SE by year
Year	Wettest day (Rx1day)
1919	33.8 mm (1.3 in)
1920	72.4 mm (2.9 in)
1921	54.1 mm (2.1 in)
1922	83.8 mm (3.3 in)
1923	38.9 mm (1.5 in)
1924	68.1 mm (2.7 in)
1925	55.1 mm (2.2 in)
1926	88.4 mm (3.5 in)
1927	45.2 mm (1.8 in)
1928	65.3 mm (2.6 in)
1929	76.5 mm (3.0 in)
1930	35.1 mm (1.4 in)
1931	50.5 mm (2.0 in)
1932	104.4 mm (4.1 in)
1933	49.0 mm (1.9 in)
1934	71.4 mm (2.8 in)
1935	57.9 mm (2.3 in)
1936	41.9 mm (1.6 in)
1937	113.0 mm (4.4 in)
1938	39.4 mm (1.6 in)
1939	38.9 mm (1.5 in)
1940	63.0 mm (2.5 in)
1941	62.5 mm (2.5 in)
1942	58.9 mm (2.3 in)
1943	81.8 mm (3.2 in)
1944	52.8 mm (2.1 in)
1945	61.5 mm (2.4 in)
1946	48.5 mm (1.9 in)
1947	46.7 mm (1.8 in)
1948	41.4 mm (1.6 in)
1949	36.8 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Oroville 7 SE, 1919 to 1949. The record is 214.1 mm (8.4 in) in 1929, marked on the chart; the median year is 118.6 mm (4.7 in).

Wettest five days (Rx5day) at Oroville 7 SE by year
Year	Wettest five days (Rx5day)
1919	56.3 mm (2.2 in)
1920	142.0 mm (5.6 in)
1921	139.3 mm (5.5 in)
1922	175.9 mm (6.9 in)
1923	62.8 mm (2.5 in)
1924	120.7 mm (4.8 in)
1925	131.0 mm (5.2 in)
1926	181.9 mm (7.2 in)
1927	114.1 mm (4.5 in)
1928	167.2 mm (6.6 in)
1929	214.1 mm (8.4 in)
1930	84.5 mm (3.3 in)
1931	132.8 mm (5.2 in)
1932	108.3 mm (4.3 in)
1933	101.1 mm (4.0 in)
1934	136.3 mm (5.4 in)
1935	103.9 mm (4.1 in)
1936	115.6 mm (4.6 in)
1937	157.5 mm (6.2 in)
1938	99.6 mm (3.9 in)
1939	73.4 mm (2.9 in)
1940	131.8 mm (5.2 in)
1941	135.9 mm (5.4 in)
1942	118.6 mm (4.7 in)
1943	127.3 mm (5.0 in)
1944	96.3 mm (3.8 in)
1945	169.4 mm (6.7 in)
1946	105.6 mm (4.2 in)
1947	82.0 mm (3.2 in)
1948	76.2 mm (3.0 in)
1949	75.5 mm (3.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Oroville 7 SE, 1919 to 1949. The record is 154 days in 1932, marked on the chart; the median year is 102 days.

Longest dry spell (CDD) at Oroville 7 SE by year
Year	Longest dry spell (CDD)
1919	9 days
1920	18 days
1921	25 days
1922	16 days
1923	22 days
1924	31 days
1925	31 days
1926	92 days
1927	120 days
1928	141 days
1929	76 days
1930	118 days
1931	94 days
1932	154 days
1933	129 days
1934	102 days
1935	124 days
1936	89 days
1937	107 days
1938	121 days
1939	124 days
1940	145 days
1941	68 days
1942	137 days
1943	135 days
1944	126 days
1945	106 days
1946	60 days
1947	121 days
1948	102 days
1949	25 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

20 years with a frost

Across 20 years with a frost, the median last spring frost at Oroville 7 SE falls on 10 March and the median first autumn frost on 8 December, which leaves a median of 283 days between them.

Frost dates and growing season at Oroville 7 SE
Measure	Median, all years	Earliest period	Recent period (1921 to 1948)	Recent against earliest	Fitted trend
Last spring frost	10 March	n/a	10 March	n/a	n/a
First autumn frost	8 December	n/a	8 December	n/a	n/a
Growing days	283 days	n/a	283 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 Oroville 7 SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Oroville 7 SE 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).