Somerville Weather Records (USC00418445)

Record envelope, standing records and threshold days for Somerville (USC00418445), Texas, United States, with 44 years of record.

Key Facts for Somerville

Somerville (USC00418445) is a weather station in Texas, United States at 30.35 latitude and -96.52 longitude, 76 m (249 ft) above sea level.
The station reports from 1908 to 1951, 44 years of record.
1,464 records set at Somerville still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Texas, United States, 30.35 latitude, -96.52 longitude.
Elevation: 76 m (249 ft).
Period of record: 1908 to 1951, 44 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 Somerville. 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 Somerville, 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)	-15.6 C (3.9 F)	n/a	n/a
Feb	32.2 C (90.0 F)	-10.0 C (14.0 F)	n/a	n/a
Mar	34.4 C (93.9 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-1.7 C (28.9 F)	n/a	n/a
May	36.7 C (98.1 F)	5.0 C (41.0 F)	n/a	n/a
Jun	39.4 C (102.9 F)	11.1 C (52.0 F)	n/a	n/a
Jul	43.9 C (111.0 F)	15.6 C (60.1 F)	n/a	n/a
Aug	41.7 C (107.1 F)	12.8 C (55.0 F)	n/a	n/a
Sep	39.4 C (102.9 F)	3.9 C (39.0 F)	n/a	n/a
Oct	36.7 C (98.1 F)	-4.4 C (24.1 F)	n/a	n/a
Nov	34.4 C (93.9 F)	-9.4 C (15.1 F)	n/a	n/a
Dec	31.7 C (89.1 F)	-9.4 C (15.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Somerville still stand. 1917 holds the most, with 130.

Standing records at Somerville by the year they were set
Year set	Standing records
1908	3
1909	47
1910	69
1911	125
1912	88
1913	92
1914	104
1915	101
1916	90
1917	130
1918	94
1919	57
1920	67
1921	73
1922	68
1923	60
1924	28
1925	56
1926	37
1927	28
1928	47

Wettest Day of Each Month

Nov: 215.9 mm (8.5 in)

The wettest day on record for each calendar month at Somerville. The most was 215.9 mm (8.5 in) on 23 November 1913.

Record daily precipitation for each month at Somerville
Month	Record daily precipitation (mm)	Date
Jan	101.6 mm (4.0 in)	23 January 1923
Feb	83.8 mm (3.3 in)	25 February 1949
Mar	76.2 mm (3.0 in)	11 March 1921
Apr	108.0 mm (4.3 in)	16 April 1950
May	139.7 mm (5.5 in)	29 May 1924
Jun	101.6 mm (4.0 in)	16 June 1919
Jul	37.8 mm (1.5 in)	18 July 1911
Aug	95.3 mm (3.8 in)	17 August 1915
Sep	190.5 mm (7.5 in)	18 September 1923
Oct	177.8 mm (7.0 in)	15 October 1920
Nov	215.9 mm (8.5 in)	23 November 1913
Dec	196.9 mm (7.8 in)	4 December 1913

Period of Record Coverage

1909 to 1928

20 years of record at Somerville, 1909 to 1928. 8 years have data for under 90 percent of days and are left out of rankings: 1909, 1910, 1911, 1924, 1925, 1926, 1927, 1928.

Days with data per year at Somerville
Year	Days with data	Share of year	Complete
1909	86	24%	No
1910	303	83%	No
1911	303	83%	No
1912	366	100%	Yes
1913	364	100%	Yes
1914	358	98%	Yes
1915	362	99%	Yes
1916	354	97%	Yes
1917	358	98%	Yes
1918	356	98%	Yes
1919	353	97%	Yes
1920	350	96%	Yes
1921	354	97%	Yes
1922	358	98%	Yes
1923	361	99%	Yes
1924	238	65%	No
1925	171	47%	No
1926	145	40%	No
1927	90	25%	No
1928	302	83%	No

Latest Records

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

Climate Trend

12 complete years, 1912 to 1923

One stripe for each of 12 complete years at Somerville, 1912 to 1923. Blue stripes are years cooler than the station's own mean of 20.2 C (68.4 F); red stripes are warmer. The coolest year was 1914, at 18.9 C (66.0 F), and the warmest was 1921, at 21.6 C (70.8 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Somerville as warming stripes, 1912 to 1923
Year	Annual mean temperature	Difference from the station mean
1912	20.0 C	-0.25 C
1913	20.2 C	-0.07 C
1914	18.9 C	-1.36 C
1915	20.4 C	+0.17 C
1916	20.7 C	+0.42 C
1917	19.9 C	-0.35 C
1918	20.0 C	-0.28 C
1919	19.5 C	-0.78 C
1920	19.8 C	-0.41 C
1921	21.6 C	+1.34 C
1922	20.8 C	+0.60 C
1923	21.2 C	+1.00 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

1908 to 1951

Yearly extremes at Somerville: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.9 C (111.0 F)	1917	39.2 C (102.5 F)	20
Coldest night (TNn)	-15.6 C (3.9 F)	1918	-6.7 C (19.9 F)	21
Wettest day (Rx1day)	215.9 mm (8.5 in)	1913	94.0 mm (3.7 in)	25
Wettest five days (Rx5day)	344.2 mm (13.6 in)	1913	126.5 mm (5.0 in)	25
Longest dry spell (CDD)	83 days	1925	43 days	25

Hottest day (TXx)

The hottest day of the year at Somerville, 1908 to 1951. The record is 43.9 C (111.0 F) in 1917, marked on the chart; the median year is 39.2 C (102.5 F).

Hottest day (TXx) at Somerville by year
Year	Hottest day (TXx)
1908	n/a
1909	31.1 C (88.0 F)
1910	39.4 C (102.9 F)
1911	39.4 C (102.9 F)
1912	42.2 C (108.0 F)
1913	40.6 C (105.1 F)
1914	38.9 C (102.0 F)
1915	40.0 C (104.0 F)
1916	38.9 C (102.0 F)
1917	43.9 C (111.0 F)
1918	41.1 C (106.0 F)
1919	37.2 C (99.0 F)
1920	38.3 C (100.9 F)
1921	40.0 C (104.0 F)
1922	38.9 C (102.0 F)
1923	40.0 C (104.0 F)
1924	37.8 C (100.0 F)
1925	41.7 C (107.1 F)
1926	28.3 C (82.9 F)
1927	33.3 C (91.9 F)
1928	38.9 C (102.0 F)
1948	n/a
1949	n/a
1950	n/a
1951	n/a

Coldest night (TNn)

The coldest night of the year at Somerville, 1908 to 1951. The record is -15.6 C (3.9 F) in 1918, marked on the chart; the median year is -6.7 C (19.9 F).

Coldest night (TNn) at Somerville by year
Year	Coldest night (TNn)
1908	-4.4 C (24.1 F)
1909	-5.6 C (21.9 F)
1910	-7.8 C (18.0 F)
1911	-9.4 C (15.1 F)
1912	-11.7 C (10.9 F)
1913	-7.2 C (19.0 F)
1914	-7.2 C (19.0 F)
1915	-6.1 C (21.0 F)
1916	-8.3 C (17.1 F)
1917	-10.0 C (14.0 F)
1918	-15.6 C (3.9 F)
1919	-6.7 C (19.9 F)
1920	-5.0 C (23.0 F)
1921	-4.4 C (24.1 F)
1922	-4.4 C (24.1 F)
1923	-5.6 C (21.9 F)
1924	-7.2 C (19.0 F)
1925	-6.1 C (21.0 F)
1926	-5.6 C (21.9 F)
1927	-5.0 C (23.0 F)
1928	-7.2 C (19.0 F)
1948	n/a
1949	n/a
1950	n/a
1951	n/a

Wettest day (Rx1day)

The wettest day of the year at Somerville, 1908 to 1951. The record is 215.9 mm (8.5 in) in 1913, marked on the chart; the median year is 94.0 mm (3.7 in).

Wettest day (Rx1day) at Somerville by year
Year	Wettest day (Rx1day)
1908	68.6 mm (2.7 in)
1909	50.8 mm (2.0 in)
1910	40.6 mm (1.6 in)
1911	71.1 mm (2.8 in)
1912	45.7 mm (1.8 in)
1913	215.9 mm (8.5 in)
1914	127.0 mm (5.0 in)
1915	95.3 mm (3.8 in)
1916	82.6 mm (3.3 in)
1917	40.6 mm (1.6 in)
1918	99.1 mm (3.9 in)
1919	127.0 mm (5.0 in)
1920	177.8 mm (7.0 in)
1921	94.0 mm (3.7 in)
1922	61.0 mm (2.4 in)
1923	190.5 mm (7.5 in)
1924	139.7 mm (5.5 in)
1925	132.1 mm (5.2 in)
1926	106.7 mm (4.2 in)
1927	50.8 mm (2.0 in)
1928	71.1 mm (2.8 in)
1948	85.1 mm (3.4 in)
1949	142.7 mm (5.6 in)
1950	108.0 mm (4.3 in)
1951	52.1 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Somerville, 1908 to 1951. The record is 344.2 mm (13.6 in) in 1913, marked on the chart; the median year is 126.5 mm (5.0 in).

Wettest five days (Rx5day) at Somerville by year
Year	Wettest five days (Rx5day)
1908	78.8 mm (3.1 in)
1909	60.9 mm (2.4 in)
1910	63.6 mm (2.5 in)
1911	71.1 mm (2.8 in)
1912	85.1 mm (3.4 in)
1913	344.2 mm (13.6 in)
1914	157.5 mm (6.2 in)
1915	116.8 mm (4.6 in)
1916	127.1 mm (5.0 in)
1917	45.7 mm (1.8 in)
1918	108.0 mm (4.3 in)
1919	163.8 mm (6.4 in)
1920	184.2 mm (7.3 in)
1921	177.8 mm (7.0 in)
1922	101.6 mm (4.0 in)
1923	227.3 mm (8.9 in)
1924	147.3 mm (5.8 in)
1925	233.7 mm (9.2 in)
1926	129.5 mm (5.1 in)
1927	81.3 mm (3.2 in)
1928	101.6 mm (4.0 in)
1948	126.5 mm (5.0 in)
1949	177.3 mm (7.0 in)
1950	135.4 mm (5.3 in)
1951	90.5 mm (3.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Somerville, 1908 to 1951. The record is 83 days in 1925, marked on the chart; the median year is 43 days.

Longest dry spell (CDD) at Somerville by year
Year	Longest dry spell (CDD)
1908	31 days
1909	40 days
1910	51 days
1911	46 days
1912	43 days
1913	66 days
1914	43 days
1915	48 days
1916	53 days
1917	60 days
1918	26 days
1919	26 days
1920	37 days
1921	49 days
1922	37 days
1923	56 days
1924	59 days
1925	83 days
1926	23 days
1927	38 days
1928	35 days
1948	56 days
1949	26 days
1950	46 days
1951	24 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 Somerville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Somerville 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 2026-10-13 (13 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).