Glennville Morrow Rch Weather Records (USC00043468)

Record envelope, standing records and threshold days for Glennville Morrow Rch (USC00043468), California, United States, with 43 years of record.

Key Facts for Glennville Morrow Rch

Glennville Morrow Rch (USC00043468) is a weather station in California, United States at 35.70 latitude and -118.73 longitude, 997 m (3,271 ft) above sea level.
The station reports from 1909 to 1951, 43 years of record.
1,464 records set at Glennville Morrow Rch still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Glennville Morrow Rch tied a daily record high maximum temperature of 31.7 C (89.1 F) on 28 May 1951.

About the Station

Location: California, United States, 35.70 latitude, -118.73 longitude.
Elevation: 997 m (3,271 ft).
Period of record: 1909 to 1951, 43 years.
Eligible elements: tmax, tmin, prcp.

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 Glennville Morrow Rch. 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 Glennville Morrow Rch, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.6 C (78.1 F)	-19.4 C (-2.9 F)	n/a	n/a
Feb	25.0 C (77.0 F)	-13.3 C (8.1 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-11.1 C (12.0 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-6.1 C (21.0 F)	n/a	n/a
May	35.0 C (95.0 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	37.2 C (99.0 F)	0.0 C (32.0 F)	n/a	n/a
Jul	39.4 C (102.9 F)	3.9 C (39.0 F)	n/a	n/a
Aug	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
Sep	37.8 C (100.0 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	33.3 C (91.9 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	27.8 C (82.0 F)	-11.1 C (12.0 F)	n/a	n/a
Dec	27.2 C (81.0 F)	-12.2 C (10.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Glennville Morrow Rch still stand. 1912 holds the most, with 56.

Standing records at Glennville Morrow Rch by the year they were set
Year set	Standing records
1909	31
1910	53
1911	29
1912	56
1913	45
1914	26
1915	18
1916	37
1917	34
1918	33
1919	21
1920	34
1921	32
1922	36
1923	43
1924	37
1925	33
1926	33
1927	28
1928	21
1929	26
1930	28
1931	49
1932	30
1933	47
1934	40
1935	15
1936	36
1937	25
1938	17
1939	38
1940	29
1941	39
1942	25
1943	35
1944	28
1945	21
1946	43
1947	39
1948	42
1949	51
1950	51
1951	30

All-Time Record Progression

1 new records

1 all-time records were set at Glennville Morrow Rch between 4 January 1950 and 4 January 1950. Each dot is a new record.

Wettest Day of Each Month

Jan: 133.4 mm (5.3 in)

The wettest day on record for each calendar month at Glennville Morrow Rch. The most was 133.4 mm (5.3 in) on 11 January 1940.

Record daily precipitation for each month at Glennville Morrow Rch
Month	Record daily precipitation (mm)	Date
Jan	133.4 mm (5.3 in)	11 January 1940
Feb	90.4 mm (3.6 in)	6 February 1937
Mar	85.6 mm (3.4 in)	9 March 1943
Apr	53.6 mm (2.1 in)	13 April 1938
May	43.2 mm (1.7 in)	27 May 1946
Jun	27.9 mm (1.1 in)	16 June 1929
Jul	18.8 mm (0.7 in)	22 July 1913
Aug	40.9 mm (1.6 in)	27 August 1913
Sep	34.8 mm (1.4 in)	21 September 1930
Oct	82.0 mm (3.2 in)	31 October 1927
Nov	58.4 mm (2.3 in)	13 November 1928
Dec	99.8 mm (3.9 in)	24 December 1916

Period of Record Coverage

1909 to 1951

43 years of record at Glennville Morrow Rch, 1909 to 1951. 4 years have data for under 90 percent of days and are left out of rankings: 1909, 1911, 1950, 1951.

Days with data per year at Glennville Morrow Rch
Year	Days with data	Share of year	Complete
1909	121	33%	No
1910	352	96%	Yes
1911	203	56%	No
1912	356	97%	Yes
1913	336	92%	Yes
1914	358	98%	Yes
1915	361	99%	Yes
1916	365	100%	Yes
1917	365	100%	Yes
1918	363	99%	Yes
1919	363	99%	Yes
1920	366	100%	Yes
1921	364	100%	Yes
1922	365	100%	Yes
1923	365	100%	Yes
1924	366	100%	Yes
1925	365	100%	Yes
1926	365	100%	Yes
1927	364	100%	Yes
1928	366	100%	Yes
1929	365	100%	Yes
1930	364	100%	Yes
1931	365	100%	Yes
1932	366	100%	Yes
1933	364	100%	Yes
1934	365	100%	Yes
1935	363	99%	Yes
1936	362	99%	Yes
1937	365	100%	Yes
1938	352	96%	Yes
1939	363	99%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	364	100%	Yes
1943	365	100%	Yes
1944	363	99%	Yes
1945	358	98%	Yes
1946	365	100%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	265	73%	No
1951	166	45%	No

Latest Records

Latest records at Glennville Morrow Rch
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 May 1951	Glennville Morrow Rch, US	daily high max (Tie)	31.7 C (89.1 F)	tie	12 years	1 of 100 (Routine)
27 May 1951	Glennville Morrow Rch, US	monthly high max	35.0 C (95.0 F)	1.7 C (3.1 F)	11 years	20 of 100 (Routine)
26 May 1951	Glennville Morrow Rch, US	daily high max (Tie)	32.2 C (90.0 F)	tie	4 years	1 of 100 (Routine)
14 May 1951	Glennville Morrow Rch, US	daily low max	8.3 C (46.9 F)	7.3 C (13.1 F)	36 years	27 of 100 (Routine)
14 May 1951	Glennville Morrow Rch, US	daily low min (Tie)	1.1 C (34.0 F)	tie	8 years	1 of 100 (Routine)
13 May 1951	Glennville Morrow Rch, US	daily low max (Tie)	12.8 C (55.0 F)	tie	8 years	1 of 100 (Routine)
13 May 1951	Glennville Morrow Rch, US	daily low min (Tie)	-1.7 C (28.9 F)	tie	8 years	1 of 100 (Routine)
29 April 1951	Glennville Morrow Rch, US	daily rain	35.6 mm (1.4 in)	1.1 mm (0.04 in)	36 years	14 of 100 (Routine)
23 April 1951	Glennville Morrow Rch, US	daily high min	11.1 C (52.0 F)	3.3 C (5.9 F)	24 years	21 of 100 (Routine)
17 April 1951	Glennville Morrow Rch, US	daily high min	9.4 C (48.9 F)	0.5 C (0.9 F)	24 years	12 of 100 (Routine)
16 April 1951	Glennville Morrow Rch, US	daily high min (Tie)	8.9 C (48.0 F)	tie	24 years	2 of 100 (Routine)
15 April 1951	Glennville Morrow Rch, US	daily high min	15.0 C (59.0 F)	5.0 C (9.0 F)	8 years	21 of 100 (Routine)
14 April 1951	Glennville Morrow Rch, US	daily high min	13.9 C (57.0 F)	5.0 C (9.0 F)	10 years	22 of 100 (Routine)
13 April 1951	Glennville Morrow Rch, US	daily high min	13.9 C (57.0 F)	5.6 C (10.1 F)	16 years	26 of 100 (Routine)
12 April 1951	Glennville Morrow Rch, US	monthly high min	20.0 C (68.0 F)	1.7 C (3.1 F)	0 years	19 of 100 (Routine)
11 April 1951	Glennville Morrow Rch, US	monthly high min	18.3 C (64.9 F)	0.5 C (0.9 F)	0 years	15 of 100 (Routine)
10 April 1951	Glennville Morrow Rch, US	monthly high min	17.8 C (64.0 F)	5.6 C (10.1 F)	24 years	38 of 100 (Notable)
9 April 1951	Glennville Morrow Rch, US	daily high min	10.0 C (50.0 F)	1.1 C (2.0 F)	32 years	16 of 100 (Routine)
8 April 1951	Glennville Morrow Rch, US	daily high min (Tie)	8.3 C (46.9 F)	tie	20 years	2 of 100 (Routine)
29 March 1951	Glennville Morrow Rch, US	daily high min	11.1 C (52.0 F)	3.3 C (5.9 F)	16 years	19 of 100 (Routine)

Climate Trend

34 complete years, 1910 to 1949

One stripe for each of 34 complete years at Glennville Morrow Rch, 1910 to 1949. Blue stripes are years cooler than the station's own mean of 12.7 C (54.8 F); red stripes are warmer. The coolest year was 1949, at 10.7 C (51.2 F), and the warmest was 1934, at 14.8 C (58.6 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Glennville Morrow Rch as warming stripes, 1910 to 1949
Year	Annual mean temperature	Difference from the station mean
1910	10.7 C	-1.98 C
1912	11.7 C	-0.97 C
1914	13.5 C	+0.80 C
1915	12.6 C	-0.05 C
1916	12.1 C	-0.56 C
1917	12.7 C	-0.01 C
1918	12.4 C	-0.25 C
1919	12.7 C	-0.02 C
1920	12.2 C	-0.50 C
1921	13.0 C	+0.27 C
1923	11.7 C	-0.97 C
1924	12.8 C	+0.12 C
1925	12.8 C	+0.06 C
1926	13.9 C	+1.23 C
1927	12.7 C	-0.03 C
1928	13.4 C	+0.71 C
1929	13.2 C	+0.54 C
1930	12.4 C	-0.27 C
1931	13.8 C	+1.10 C
1932	12.5 C	-0.19 C
1933	13.1 C	+0.40 C
1934	14.8 C	+2.09 C
1935	13.0 C	+0.34 C
1936	13.8 C	+1.15 C
1937	13.0 C	+0.33 C
1939	13.6 C	+0.94 C
1940	13.7 C	+1.02 C
1941	12.2 C	-0.49 C
1942	12.2 C	-0.47 C
1945	12.2 C	-0.54 C
1946	12.6 C	-0.07 C
1947	12.7 C	0.00 C
1948	11.1 C	-1.62 C
1949	10.7 C	-2.01 C

The fitted trend in annual mean temperature here over 1910 to 1949 is 0.02 C (-0.26 to 0.31) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.47 to 0.55) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Glennville Morrow Rch
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.02 C (-0.26 to 0.31) per decade	0.04 F (-0.47 to 0.55) per decade	1910 to 1949	34	Not clearly different from zero
Mean daily maximum	0.5 C (0.1 to 0.8) per decade	0.8 F (0.3 to 1.4) per decade	1910 to 1949	34	Rise
Mean daily minimum	-0.4 C (-0.8 to -0.1) per decade	-0.7 F (-1.4 to -0.1) per decade	1910 to 1949	34	Fall

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

1909 to 1951

Yearly extremes at Glennville Morrow Rch: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1933	37.2 C (99.0 F)	43
Coldest night (TNn)	-19.4 C (-2.9 F)	1950	-10.0 C (14.0 F)	43
Wettest day (Rx1day)	133.4 mm (5.3 in)	1940	48.3 mm (1.9 in)	43
Wettest five days (Rx5day)	191.8 mm (7.6 in)	1909	81.0 mm (3.2 in)	43
Longest dry spell (CDD)	180 days	1940	81 days	43

Hottest day (TXx)

The hottest day of the year at Glennville Morrow Rch, 1909 to 1951. The record is 40.0 C (104.0 F) in 1933, marked on the chart; the median year is 37.2 C (99.0 F).

Hottest day (TXx) at Glennville Morrow Rch by year
Year	Hottest day (TXx)
1909	26.7 C (80.1 F)
1910	30.0 C (86.0 F)
1911	30.6 C (87.1 F)
1912	36.1 C (97.0 F)
1913	36.7 C (98.1 F)
1914	36.1 C (97.0 F)
1915	36.7 C (98.1 F)
1916	36.1 C (97.0 F)
1917	36.1 C (97.0 F)
1918	35.0 C (95.0 F)
1919	37.2 C (99.0 F)
1920	37.2 C (99.0 F)
1921	37.2 C (99.0 F)
1922	36.1 C (97.0 F)
1923	36.7 C (98.1 F)
1924	37.2 C (99.0 F)
1925	38.9 C (102.0 F)
1926	37.2 C (99.0 F)
1927	35.0 C (95.0 F)
1928	37.2 C (99.0 F)
1929	36.1 C (97.0 F)
1930	36.7 C (98.1 F)
1931	39.4 C (102.9 F)
1932	36.7 C (98.1 F)
1933	40.0 C (104.0 F)
1934	37.2 C (99.0 F)
1935	36.1 C (97.0 F)
1936	37.2 C (99.0 F)
1937	37.8 C (100.0 F)
1938	36.7 C (98.1 F)
1939	37.2 C (99.0 F)
1940	38.3 C (100.9 F)
1941	38.9 C (102.0 F)
1942	39.4 C (102.9 F)
1943	36.7 C (98.1 F)
1944	37.2 C (99.0 F)
1945	37.8 C (100.0 F)
1946	37.2 C (99.0 F)
1947	37.2 C (99.0 F)
1948	37.2 C (99.0 F)
1949	36.1 C (97.0 F)
1950	39.4 C (102.9 F)
1951	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Glennville Morrow Rch, 1909 to 1951. The record is -19.4 C (-2.9 F) in 1950, marked on the chart; the median year is -10.0 C (14.0 F).

Coldest night (TNn) at Glennville Morrow Rch by year
Year	Coldest night (TNn)
1909	-7.2 C (19.0 F)
1910	-11.7 C (10.9 F)
1911	-10.0 C (14.0 F)
1912	-6.1 C (21.0 F)
1913	-12.8 C (9.0 F)
1914	-6.1 C (21.0 F)
1915	-8.3 C (17.1 F)
1916	-10.6 C (12.9 F)
1917	-8.9 C (16.0 F)
1918	-7.8 C (18.0 F)
1919	-11.1 C (12.0 F)
1920	-7.2 C (19.0 F)
1921	-8.9 C (16.0 F)
1922	-11.1 C (12.0 F)
1923	-12.2 C (10.0 F)
1924	-12.8 C (9.0 F)
1925	-5.0 C (23.0 F)
1926	-8.3 C (17.1 F)
1927	-3.9 C (25.0 F)
1928	-8.9 C (16.0 F)
1929	-10.0 C (14.0 F)
1930	-10.6 C (12.9 F)
1931	-7.8 C (18.0 F)
1932	-13.9 C (7.0 F)
1933	-11.7 C (10.9 F)
1934	-2.8 C (27.0 F)
1935	-11.1 C (12.0 F)
1936	-6.7 C (19.9 F)
1937	-15.6 C (3.9 F)
1938	-6.1 C (21.0 F)
1939	-10.6 C (12.9 F)
1940	-7.2 C (19.0 F)
1941	-8.3 C (17.1 F)
1942	-11.1 C (12.0 F)
1943	-7.2 C (19.0 F)
1944	-10.6 C (12.9 F)
1945	-7.2 C (19.0 F)
1946	-11.1 C (12.0 F)
1947	-8.9 C (16.0 F)
1948	-12.2 C (10.0 F)
1949	-13.3 C (8.1 F)
1950	-19.4 C (-2.9 F)
1951	-12.8 C (9.0 F)

Wettest day (Rx1day)

The wettest day of the year at Glennville Morrow Rch, 1909 to 1951. The record is 133.4 mm (5.3 in) in 1940, marked on the chart; the median year is 48.3 mm (1.9 in).

Wettest day (Rx1day) at Glennville Morrow Rch by year
Year	Wettest day (Rx1day)
1909	73.7 mm (2.9 in)
1910	52.3 mm (2.1 in)
1911	74.9 mm (2.9 in)
1912	26.7 mm (1.1 in)
1913	55.9 mm (2.2 in)
1914	48.5 mm (1.9 in)
1915	55.9 mm (2.2 in)
1916	99.8 mm (3.9 in)
1917	74.2 mm (2.9 in)
1918	39.9 mm (1.6 in)
1919	43.2 mm (1.7 in)
1920	48.0 mm (1.9 in)
1921	31.8 mm (1.3 in)
1922	43.4 mm (1.7 in)
1923	31.8 mm (1.3 in)
1924	50.0 mm (2.0 in)
1925	36.8 mm (1.4 in)
1926	48.3 mm (1.9 in)
1927	82.0 mm (3.2 in)
1928	58.4 mm (2.3 in)
1929	35.6 mm (1.4 in)
1930	43.2 mm (1.7 in)
1931	69.1 mm (2.7 in)
1932	37.1 mm (1.5 in)
1933	74.4 mm (2.9 in)
1934	48.8 mm (1.9 in)
1935	40.6 mm (1.6 in)
1936	45.5 mm (1.8 in)
1937	90.4 mm (3.6 in)
1938	53.6 mm (2.1 in)
1939	38.6 mm (1.5 in)
1940	133.4 mm (5.3 in)
1941	33.3 mm (1.3 in)
1942	59.9 mm (2.4 in)
1943	85.6 mm (3.4 in)
1944	52.1 mm (2.1 in)
1945	63.8 mm (2.5 in)
1946	43.2 mm (1.7 in)
1947	16.3 mm (0.6 in)
1948	33.5 mm (1.3 in)
1949	46.2 mm (1.8 in)
1950	37.1 mm (1.5 in)
1951	35.6 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Glennville Morrow Rch, 1909 to 1951. The record is 191.8 mm (7.6 in) in 1909, marked on the chart; the median year is 81.0 mm (3.2 in).

Wettest five days (Rx5day) at Glennville Morrow Rch by year
Year	Wettest five days (Rx5day)
1909	191.8 mm (7.6 in)
1910	77.7 mm (3.1 in)
1911	125.7 mm (4.9 in)
1912	75.7 mm (3.0 in)
1913	73.1 mm (2.9 in)
1914	146.3 mm (5.8 in)
1915	98.0 mm (3.9 in)
1916	117.6 mm (4.6 in)
1917	81.0 mm (3.2 in)
1918	63.3 mm (2.5 in)
1919	61.0 mm (2.4 in)
1920	74.2 mm (2.9 in)
1921	99.8 mm (3.9 in)
1922	64.2 mm (2.5 in)
1923	66.3 mm (2.6 in)
1924	95.2 mm (3.7 in)
1925	48.2 mm (1.9 in)
1926	118.6 mm (4.7 in)
1927	85.6 mm (3.4 in)
1928	95.2 mm (3.7 in)
1929	58.9 mm (2.3 in)
1930	77.8 mm (3.1 in)
1931	129.6 mm (5.1 in)
1932	56.9 mm (2.2 in)
1933	114.2 mm (4.5 in)
1934	74.6 mm (2.9 in)
1935	59.7 mm (2.4 in)
1936	112.4 mm (4.4 in)
1937	124.4 mm (4.9 in)
1938	145.0 mm (5.7 in)
1939	73.7 mm (2.9 in)
1940	184.4 mm (7.3 in)
1941	62.5 mm (2.5 in)
1942	87.6 mm (3.4 in)
1943	158.4 mm (6.2 in)
1944	86.9 mm (3.4 in)
1945	144.4 mm (5.7 in)
1946	91.7 mm (3.6 in)
1947	27.3 mm (1.1 in)
1948	55.8 mm (2.2 in)
1949	67.6 mm (2.7 in)
1950	57.9 mm (2.3 in)
1951	59.2 mm (2.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Glennville Morrow Rch, 1909 to 1951. The record is 180 days in 1940, marked on the chart; the median year is 81 days.

Longest dry spell (CDD) at Glennville Morrow Rch by year
Year	Longest dry spell (CDD)
1909	37 days
1910	97 days
1911	61 days
1912	113 days
1913	62 days
1914	135 days
1915	20 days
1916	37 days
1917	31 days
1918	26 days
1919	23 days
1920	13 days
1921	30 days
1922	17 days
1923	16 days
1924	20 days
1925	34 days
1926	130 days
1927	112 days
1928	178 days
1929	93 days
1930	113 days
1931	82 days
1932	129 days
1933	70 days
1934	133 days
1935	101 days
1936	69 days
1937	85 days
1938	117 days
1939	50 days
1940	180 days
1941	81 days
1942	164 days
1943	166 days
1944	141 days
1945	108 days
1946	53 days
1947	72 days
1948	132 days
1949	152 days
1950	65 days
1951	34 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

34 years with a frost

Across 34 years with a frost, the median last spring frost at Glennville Morrow Rch falls on 27 April and the median first autumn frost on 30 October, which leaves a median of 184 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 Glennville Morrow Rch
Measure	Median, all years	Earliest period	Recent period (1916 to 1949)	Recent against earliest	Fitted trend
Last spring frost	27 April	n/a	27 April	n/a	-2.8 days per decade
First autumn frost	30 October	n/a	30 October	n/a	-2.9 days per decade
Growing days	184 days	n/a	182 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.

Download the Data

Data for Glennville Morrow Rch standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Glennville Morrow Rch 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).