Record envelope, standing records and threshold days for Bridgeport Dam (USC00041075), California, United States, with 33 years of record.
Key Facts for Bridgeport Dam
Bridgeport Dam (USC00041075) is a weather station in California, United States at 38.32 latitude and -119.22 longitude, 1,958 m (6,424 ft) above sea level.
The station reports from 1925 to 1957, 33 years of record.
1,464 records set at Bridgeport Dam still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Bridgeport Dam set a daily record precipitation of 5.3 mm (0.21 in) on 23 May 1957.
About the Station
Location: California, United States, 38.32 latitude, -119.22 longitude.
Elevation: 1,958 m (6,424 ft).
Period of record: 1925 to 1957, 33 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 Bridgeport Dam. 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 Bridgeport Dam, 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)
-38.3 C (-36.9 F)
n/a
n/a
Feb
18.9 C (66.0 F)
-32.8 C (-27.0 F)
n/a
n/a
Mar
21.1 C (70.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Apr
27.8 C (82.0 F)
-17.8 C (0.0 F)
n/a
n/a
May
29.4 C (84.9 F)
-10.0 C (14.0 F)
n/a
n/a
Jun
35.0 C (95.0 F)
-6.7 C (19.9 F)
n/a
n/a
Jul
35.0 C (95.0 F)
-2.8 C (27.0 F)
n/a
n/a
Aug
35.6 C (96.1 F)
-5.0 C (23.0 F)
n/a
n/a
Sep
35.0 C (95.0 F)
-9.4 C (15.1 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-13.9 C (7.0 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-20.6 C (-5.1 F)
n/a
n/a
Dec
21.7 C (71.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Bridgeport Dam still stand. 1950 holds the most, with 98.
Standing records at Bridgeport Dam by the year they were set
Year set
Standing records
1931
30
1932
51
1933
72
1934
89
1935
59
1936
49
1937
59
1938
55
1939
57
1940
74
1941
48
1942
57
1943
53
1944
46
1945
57
1946
34
1947
46
1948
57
1949
72
1950
98
1951
47
1952
49
1953
47
1954
54
1955
45
1956
32
1957
27
Wettest Day of Each Month
Feb: 77.2 mm (3.0 in)
The wettest day on record for each calendar month at Bridgeport Dam. The most was 77.2 mm (3.0 in) on 6 February 1950.
Record daily precipitation for each month at Bridgeport Dam
Month
Record daily precipitation (mm)
Date
Jan
54.4 mm (2.1 in)
1 January 1934
Feb
77.2 mm (3.0 in)
6 February 1950
Mar
32.5 mm (1.3 in)
24 March 1950
Apr
51.8 mm (2.0 in)
19 April 1926
May
20.3 mm (0.8 in)
19 May 1957
Jun
29.2 mm (1.1 in)
7 June 1934
Jul
24.1 mm (0.9 in)
15 July 1935
Aug
26.2 mm (1.0 in)
9 August 1936
Sep
28.4 mm (1.1 in)
24 September 1948
Oct
51.1 mm (2.0 in)
20 October 1941
Nov
50.8 mm (2.0 in)
27 November 1926
Dec
71.1 mm (2.8 in)
23 December 1955
Period of Record Coverage
1931 to 1957
Complete yearUnder 90 percent of days
27 years of record at Bridgeport Dam, 1931 to 1957. 4 years have data for under 90 percent of days and are left out of rankings: 1931, 1954, 1955, 1957.
Cooler than the station meanWarmer than the station mean
One stripe for each of 20 complete years at Bridgeport Dam, 1932 to 1954. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 1949, at 4.9 C (40.9 F), and the warmest was 1934, at 8.8 C (47.8 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Bridgeport Dam as warming stripes, 1932 to 1954
Year
Annual mean temperature
Difference from the station mean
1932
7.4 C
+0.46 C
1933
7.3 C
+0.35 C
1934
8.8 C
+1.80 C
1935
6.2 C
-0.80 C
1936
7.2 C
+0.18 C
1937
6.6 C
-0.37 C
1938
6.4 C
-0.59 C
1939
7.8 C
+0.79 C
1940
8.2 C
+1.18 C
1942
6.2 C
-0.78 C
1943
7.3 C
+0.28 C
1945
6.7 C
-0.23 C
1947
6.6 C
-0.37 C
1948
5.9 C
-1.12 C
1949
4.9 C
-2.03 C
1950
8.4 C
+1.41 C
1951
7.1 C
+0.09 C
1952
5.6 C
-1.38 C
1953
7.6 C
+0.65 C
1954
7.5 C
+0.56 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
1925 to 1957
Yearly extremes at Bridgeport Dam: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
35.6 C (96.1 F)
1940
33.3 C (91.9 F)
27
Coldest night (TNn)
-38.3 C (-36.9 F)
1937
-26.7 C (-16.1 F)
27
Wettest day (Rx1day)
77.2 mm (3.0 in)
1950
28.4 mm (1.1 in)
33
Wettest five days (Rx5day)
179.1 mm (7.1 in)
1950
47.3 mm (1.9 in)
33
Longest dry spell (CDD)
141 days
1928
67 days
33
Hottest day (TXx)
The hottest day of the year at Bridgeport Dam, 1925 to 1957. The record is 35.6 C (96.1 F) in 1940, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Bridgeport Dam by year
Year
Hottest day (TXx)
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
32.2 C (90.0 F)
1932
33.3 C (91.9 F)
1933
34.4 C (93.9 F)
1934
33.9 C (93.0 F)
1935
32.8 C (91.0 F)
1936
34.4 C (93.9 F)
1937
33.9 C (93.0 F)
1938
32.2 C (90.0 F)
1939
34.4 C (93.9 F)
1940
35.6 C (96.1 F)
1941
32.2 C (90.0 F)
1942
32.2 C (90.0 F)
1943
33.9 C (93.0 F)
1944
33.3 C (91.9 F)
1945
35.0 C (95.0 F)
1946
33.9 C (93.0 F)
1947
33.3 C (91.9 F)
1948
32.8 C (91.0 F)
1949
32.8 C (91.0 F)
1950
35.0 C (95.0 F)
1951
33.3 C (91.9 F)
1952
31.7 C (89.1 F)
1953
32.8 C (91.0 F)
1954
33.9 C (93.0 F)
1955
34.4 C (93.9 F)
1956
32.2 C (90.0 F)
1957
31.7 C (89.1 F)
Coldest night (TNn)
The coldest night of the year at Bridgeport Dam, 1925 to 1957. The record is -38.3 C (-36.9 F) in 1937, marked on the chart; the median year is -26.7 C (-16.1 F).
Coldest night (TNn) at Bridgeport Dam by year
Year
Coldest night (TNn)
1925
n/a
1926
n/a
1927
n/a
1928
n/a
1929
n/a
1930
n/a
1931
-17.8 C (0.0 F)
1932
-26.7 C (-16.1 F)
1933
-30.6 C (-23.1 F)
1934
-23.3 C (-9.9 F)
1935
-28.3 C (-18.9 F)
1936
-28.3 C (-18.9 F)
1937
-38.3 C (-36.9 F)
1938
-29.4 C (-20.9 F)
1939
-27.2 C (-17.0 F)
1940
-26.1 C (-15.0 F)
1941
-22.8 C (-9.0 F)
1942
-28.3 C (-18.9 F)
1943
-20.6 C (-5.1 F)
1944
-32.8 C (-27.0 F)
1945
-25.6 C (-14.1 F)
1946
-21.1 C (-6.0 F)
1947
-21.7 C (-7.1 F)
1948
-29.4 C (-20.9 F)
1949
-35.0 C (-31.0 F)
1950
-32.8 C (-27.0 F)
1951
-23.9 C (-11.0 F)
1952
-30.6 C (-23.1 F)
1953
-17.8 C (0.0 F)
1954
-17.8 C (0.0 F)
1955
-28.3 C (-18.9 F)
1956
-20.0 C (-4.0 F)
1957
-17.2 C (1.0 F)
Wettest day (Rx1day)
The wettest day of the year at Bridgeport Dam, 1925 to 1957. The record is 77.2 mm (3.0 in) in 1950, marked on the chart; the median year is 28.4 mm (1.1 in).
Wettest day (Rx1day) at Bridgeport Dam by year
Year
Wettest day (Rx1day)
1925
61.0 mm (2.4 in)
1926
51.8 mm (2.0 in)
1927
38.1 mm (1.5 in)
1928
17.3 mm (0.7 in)
1929
11.4 mm (0.4 in)
1930
12.2 mm (0.5 in)
1931
29.0 mm (1.1 in)
1932
17.8 mm (0.7 in)
1933
27.9 mm (1.1 in)
1934
54.4 mm (2.1 in)
1935
31.0 mm (1.2 in)
1936
75.7 mm (3.0 in)
1937
44.2 mm (1.7 in)
1938
29.7 mm (1.2 in)
1939
20.3 mm (0.8 in)
1940
45.7 mm (1.8 in)
1941
51.1 mm (2.0 in)
1942
22.4 mm (0.9 in)
1943
45.7 mm (1.8 in)
1944
25.4 mm (1.0 in)
1945
60.7 mm (2.4 in)
1946
41.9 mm (1.6 in)
1947
11.4 mm (0.4 in)
1948
28.4 mm (1.1 in)
1949
19.1 mm (0.8 in)
1950
77.2 mm (3.0 in)
1951
21.3 mm (0.8 in)
1952
21.3 mm (0.8 in)
1953
25.4 mm (1.0 in)
1954
21.6 mm (0.9 in)
1955
71.1 mm (2.8 in)
1956
21.6 mm (0.9 in)
1957
20.3 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Bridgeport Dam, 1925 to 1957. The record is 179.1 mm (7.1 in) in 1950, marked on the chart; the median year is 47.3 mm (1.9 in).
Wettest five days (Rx5day) at Bridgeport Dam by year
Year
Wettest five days (Rx5day)
1925
71.2 mm (2.8 in)
1926
106.7 mm (4.2 in)
1927
39.1 mm (1.5 in)
1928
17.7 mm (0.7 in)
1929
20.3 mm (0.8 in)
1930
18.3 mm (0.7 in)
1931
79.5 mm (3.1 in)
1932
31.0 mm (1.2 in)
1933
62.7 mm (2.5 in)
1934
54.4 mm (2.1 in)
1935
38.6 mm (1.5 in)
1936
75.7 mm (3.0 in)
1937
70.1 mm (2.8 in)
1938
47.3 mm (1.9 in)
1939
23.1 mm (0.9 in)
1940
73.4 mm (2.9 in)
1941
77.4 mm (3.0 in)
1942
33.0 mm (1.3 in)
1943
95.3 mm (3.8 in)
1944
49.2 mm (1.9 in)
1945
101.1 mm (4.0 in)
1946
79.5 mm (3.1 in)
1947
16.0 mm (0.6 in)
1948
28.4 mm (1.1 in)
1949
25.4 mm (1.0 in)
1950
179.1 mm (7.1 in)
1951
40.6 mm (1.6 in)
1952
40.6 mm (1.6 in)
1953
34.5 mm (1.4 in)
1954
54.9 mm (2.2 in)
1955
158.5 mm (6.2 in)
1956
36.3 mm (1.4 in)
1957
31.2 mm (1.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Bridgeport Dam, 1925 to 1957. The record is 141 days in 1928, marked on the chart; the median year is 67 days.
Longest dry spell (CDD) at Bridgeport Dam by year
Year
Longest dry spell (CDD)
1925
51 days
1926
129 days
1927
61 days
1928
141 days
1929
79 days
1930
21 days
1931
29 days
1932
53 days
1933
72 days
1934
66 days
1935
38 days
1936
59 days
1937
109 days
1938
40 days
1939
56 days
1940
100 days
1941
49 days
1942
82 days
1943
80 days
1944
69 days
1945
32 days
1946
81 days
1947
69 days
1948
91 days
1949
81 days
1950
67 days
1951
55 days
1952
63 days
1953
70 days
1954
107 days
1955
50 days
1956
75 days
1957
31 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 Bridgeport Dam falls on 18 June and the median first autumn frost on 29 August, which leaves a median of 76 days between them.
Frost dates and growing season at Bridgeport Dam
Measure
Median, all years
Earliest period
Recent period (1932 to 1954)
Recent against earliest
Fitted trend
Last spring frost
18 June
n/a
18 June
n/a
n/a
First autumn frost
29 August
n/a
29 August
n/a
n/a
Growing days
76 days
n/a
76 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 Bridgeport Dam standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bridgeport Dam 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.