Record envelope, standing records and threshold days for La Porte (USC00044773), California, United States, with 65 years of record.
Key Facts for La Porte
La Porte (USC00044773) is a weather station in California, United States at 39.68 latitude and -120.98 longitude, 1,519 m (4,984 ft) above sea level.
The station reports from 1894 to 1958, 65 years of record.
1,464 records set at La Porte still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
La Porte set a daily record precipitation of 2.5 mm (0.10 in) on 28 July 1958.
About the Station
Location: California, United States, 39.68 latitude, -120.98 longitude.
Elevation: 1,519 m (4,984 ft).
Period of record: 1894 to 1958, 65 years.
Eligible elements: prcp.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at La Porte. 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 La Porte, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.3 C (64.9 F)
-17.8 C (0.0 F)
n/a
n/a
Feb
20.0 C (68.0 F)
-17.8 C (0.0 F)
n/a
n/a
Mar
20.6 C (69.1 F)
-15.0 C (5.0 F)
n/a
n/a
Apr
24.4 C (75.9 F)
-17.8 C (0.0 F)
n/a
n/a
May
31.1 C (88.0 F)
-11.1 C (12.0 F)
n/a
n/a
Jun
31.7 C (89.1 F)
-5.6 C (21.9 F)
n/a
n/a
Jul
36.1 C (97.0 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
35.0 C (95.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
33.9 C (93.0 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
26.7 C (80.1 F)
-15.6 C (3.9 F)
n/a
n/a
Dec
19.4 C (66.9 F)
-18.3 C (-0.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at La Porte still stand. 1911 holds the most, with 80.
Standing records at La Porte by the year they were set
Year set
Standing records
1903
26
1904
51
1905
21
1906
68
1907
54
1908
63
1909
49
1910
70
1911
80
1912
44
1913
67
1914
53
1915
42
1916
59
1917
73
1918
66
1919
70
1920
71
1921
46
1922
64
1923
45
1924
61
1925
51
1926
36
1927
43
1928
64
1929
27
Wettest Day of Each Month
Apr: 279.4 mm (11.0 in)
The wettest day on record for each calendar month at La Porte. The most was 279.4 mm (11.0 in) on 6 April 1911.
Record daily precipitation for each month at La Porte
Month
Record daily precipitation (mm)
Date
Jan
232.7 mm (9.2 in)
14 January 1909
Feb
143.0 mm (5.6 in)
24 February 1904
Mar
185.2 mm (7.3 in)
23 March 1907
Apr
279.4 mm (11.0 in)
6 April 1911
May
85.3 mm (3.4 in)
26 May 1895
Jun
55.9 mm (2.2 in)
1 June 1898
Jul
25.9 mm (1.0 in)
5 July 1895
Aug
30.5 mm (1.2 in)
28 August 1916
Sep
80.3 mm (3.2 in)
12 September 1895
Oct
156.5 mm (6.2 in)
20 October 1899
Nov
140.5 mm (5.5 in)
21 November 1900
Dec
123.2 mm (4.9 in)
31 December 1913
Period of Record Coverage
1903 to 1929
Complete yearUnder 90 percent of days
27 years of record at La Porte, 1903 to 1929. 4 years have data for under 90 percent of days and are left out of rankings: 1903, 1905, 1928, 1929.
Cooler than the station meanWarmer than the station mean
One stripe for each of 20 complete years at La Porte, 1906 to 1927. Blue stripes are years cooler than the station's own mean of 7.1 C (44.8 F); red stripes are warmer. The coolest year was 1922, at 5.5 C (42.0 F), and the warmest was 1910, at 9.2 C (48.6 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at La Porte as warming stripes, 1906 to 1927
Year
Annual mean temperature
Difference from the station mean
1906
8.6 C
+1.54 C
1907
8.0 C
+0.91 C
1908
8.6 C
+1.48 C
1909
8.3 C
+1.15 C
1910
9.2 C
+2.12 C
1912
7.6 C
+0.49 C
1913
8.0 C
+0.94 C
1914
8.1 C
+1.02 C
1915
7.2 C
+0.14 C
1916
6.2 C
-0.89 C
1917
5.9 C
-1.18 C
1918
6.2 C
-0.93 C
1919
5.6 C
-1.49 C
1921
6.4 C
-0.69 C
1922
5.5 C
-1.56 C
1923
6.3 C
-0.84 C
1924
6.9 C
-0.24 C
1925
6.2 C
-0.86 C
1926
7.4 C
+0.26 C
1927
5.7 C
-1.43 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
1894 to 1958
Yearly extremes at La Porte: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
36.1 C (97.0 F)
1928
31.7 C (89.1 F)
27
Coldest night (TNn)
-18.3 C (-0.9 F)
1924
-14.4 C (6.1 F)
27
Wettest day (Rx1day)
279.4 mm (11.0 in)
1911
104.6 mm (4.1 in)
38
Wettest five days (Rx5day)
623.1 mm (24.5 in)
1909
215.6 mm (8.5 in)
38
Longest dry spell (CDD)
114 days
1911
48 days
38
Hottest day (TXx)
The hottest day of the year at La Porte, 1894 to 1958. The record is 36.1 C (97.0 F) in 1928, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at La Porte by year
Year
Hottest day (TXx)
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
30.6 C (87.1 F)
1904
31.7 C (89.1 F)
1905
31.1 C (88.0 F)
1906
30.6 C (87.1 F)
1907
30.0 C (86.0 F)
1908
33.9 C (93.0 F)
1909
31.7 C (89.1 F)
1910
33.3 C (91.9 F)
1911
35.0 C (95.0 F)
1912
31.1 C (88.0 F)
1913
32.2 C (90.0 F)
1914
32.2 C (90.0 F)
1915
33.3 C (91.9 F)
1916
31.7 C (89.1 F)
1917
33.3 C (91.9 F)
1918
30.6 C (87.1 F)
1919
30.6 C (87.1 F)
1920
30.6 C (87.1 F)
1921
31.7 C (89.1 F)
1922
34.4 C (93.9 F)
1923
32.2 C (90.0 F)
1924
32.8 C (91.0 F)
1925
33.9 C (93.0 F)
1926
31.7 C (89.1 F)
1927
30.0 C (86.0 F)
1928
36.1 C (97.0 F)
1929
27.8 C (82.0 F)
1957
n/a
1958
n/a
Coldest night (TNn)
The coldest night of the year at La Porte, 1894 to 1958. The record is -18.3 C (-0.9 F) in 1924, marked on the chart; the median year is -14.4 C (6.1 F).
Coldest night (TNn) at La Porte by year
Year
Coldest night (TNn)
1894
n/a
1895
n/a
1896
n/a
1897
n/a
1898
n/a
1899
n/a
1900
n/a
1901
n/a
1902
n/a
1903
-6.7 C (19.9 F)
1904
-14.4 C (6.1 F)
1905
-11.7 C (10.9 F)
1906
-14.4 C (6.1 F)
1907
-13.9 C (7.0 F)
1908
-12.8 C (9.0 F)
1909
-12.2 C (10.0 F)
1910
-15.6 C (3.9 F)
1911
-17.8 C (0.0 F)
1912
-12.2 C (10.0 F)
1913
-15.0 C (5.0 F)
1914
-15.6 C (3.9 F)
1915
-16.7 C (1.9 F)
1916
-15.6 C (3.9 F)
1917
-13.3 C (8.1 F)
1918
-15.0 C (5.0 F)
1919
-13.3 C (8.1 F)
1920
-15.0 C (5.0 F)
1921
-12.8 C (9.0 F)
1922
-16.7 C (1.9 F)
1923
-15.0 C (5.0 F)
1924
-18.3 C (-0.9 F)
1925
-12.8 C (9.0 F)
1926
-12.8 C (9.0 F)
1927
-13.9 C (7.0 F)
1928
-13.3 C (8.1 F)
1929
-15.0 C (5.0 F)
1957
n/a
1958
n/a
Wettest day (Rx1day)
The wettest day of the year at La Porte, 1894 to 1958. The record is 279.4 mm (11.0 in) in 1911, marked on the chart; the median year is 104.6 mm (4.1 in).
Wettest day (Rx1day) at La Porte by year
Year
Wettest day (Rx1day)
1894
80.5 mm (3.2 in)
1895
85.3 mm (3.4 in)
1896
154.7 mm (6.1 in)
1897
102.4 mm (4.0 in)
1898
86.1 mm (3.4 in)
1899
156.5 mm (6.2 in)
1900
140.5 mm (5.5 in)
1901
110.7 mm (4.4 in)
1902
94.2 mm (3.7 in)
1903
132.8 mm (5.2 in)
1904
143.0 mm (5.6 in)
1905
36.8 mm (1.4 in)
1906
155.7 mm (6.1 in)
1907
185.2 mm (7.3 in)
1908
101.6 mm (4.0 in)
1909
232.7 mm (9.2 in)
1910
86.9 mm (3.4 in)
1911
279.4 mm (11.0 in)
1912
111.0 mm (4.4 in)
1913
123.2 mm (4.9 in)
1914
72.4 mm (2.9 in)
1915
95.0 mm (3.7 in)
1916
101.6 mm (4.0 in)
1917
106.7 mm (4.2 in)
1918
93.0 mm (3.7 in)
1919
101.6 mm (4.0 in)
1920
65.3 mm (2.6 in)
1921
72.4 mm (2.9 in)
1922
99.3 mm (3.9 in)
1923
54.6 mm (2.1 in)
1924
117.9 mm (4.6 in)
1925
78.5 mm (3.1 in)
1926
138.4 mm (5.4 in)
1927
118.1 mm (4.6 in)
1928
137.2 mm (5.4 in)
1929
47.2 mm (1.9 in)
1957
106.7 mm (4.2 in)
1958
134.1 mm (5.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at La Porte, 1894 to 1958. The record is 623.1 mm (24.5 in) in 1909, marked on the chart; the median year is 215.6 mm (8.5 in).
Wettest five days (Rx5day) at La Porte by year
Year
Wettest five days (Rx5day)
1894
182.9 mm (7.2 in)
1895
210.6 mm (8.3 in)
1896
438.5 mm (17.3 in)
1897
275.6 mm (10.9 in)
1898
150.4 mm (5.9 in)
1899
401.7 mm (15.8 in)
1900
270.8 mm (10.7 in)
1901
271.7 mm (10.7 in)
1902
287.3 mm (11.3 in)
1903
363.8 mm (14.3 in)
1904
362.2 mm (14.3 in)
1905
100.6 mm (4.0 in)
1906
472.9 mm (18.6 in)
1907
501.6 mm (19.7 in)
1908
162.9 mm (6.4 in)
1909
623.1 mm (24.5 in)
1910
179.3 mm (7.1 in)
1911
431.8 mm (17.0 in)
1912
177.0 mm (7.0 in)
1913
189.7 mm (7.5 in)
1914
293.8 mm (11.6 in)
1915
135.1 mm (5.3 in)
1916
205.5 mm (8.1 in)
1917
260.1 mm (10.2 in)
1918
157.2 mm (6.2 in)
1919
235.8 mm (9.3 in)
1920
217.4 mm (8.6 in)
1921
206.8 mm (8.1 in)
1922
213.8 mm (8.4 in)
1923
135.6 mm (5.3 in)
1924
171.8 mm (6.8 in)
1925
211.3 mm (8.3 in)
1926
397.5 mm (15.6 in)
1927
204.4 mm (8.0 in)
1928
376.0 mm (14.8 in)
1929
121.4 mm (4.8 in)
1957
294.9 mm (11.6 in)
1958
204.5 mm (8.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at La Porte, 1894 to 1958. The record is 114 days in 1911, marked on the chart; the median year is 48 days.
Longest dry spell (CDD) at La Porte by year
Year
Longest dry spell (CDD)
1894
26 days
1895
53 days
1896
39 days
1897
67 days
1898
64 days
1899
54 days
1900
43 days
1901
67 days
1902
80 days
1903
92 days
1904
39 days
1905
42 days
1906
73 days
1907
85 days
1908
56 days
1909
97 days
1910
47 days
1911
114 days
1912
47 days
1913
33 days
1914
98 days
1915
49 days
1916
56 days
1917
24 days
1918
22 days
1919
25 days
1920
24 days
1921
25 days
1922
39 days
1923
34 days
1924
38 days
1925
36 days
1926
84 days
1927
86 days
1928
86 days
1929
32 days
1957
57 days
1958
41 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 La Porte falls on 11 June and the median first autumn frost on 10 September, which leaves a median of 88 days between them.
Frost dates and growing season at La Porte
Measure
Median, all years
Earliest period
Recent period (1906 to 1927)
Recent against earliest
Fitted trend
Last spring frost
11 June
n/a
11 June
n/a
n/a
First autumn frost
10 September
n/a
10 September
n/a
n/a
Growing days
88 days
n/a
88 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 La Porte standing records by year: CSV or JSON. Field meanings are on the data page.
Data for La Porte 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.