Record envelope, standing records and threshold days for Termo 1 E (USC00048873), California, United States, with 73 years of record.
Key Facts for Termo 1 E
Termo 1 E (USC00048873) is a weather station in California, United States at 40.87 latitude and -120.43 longitude, 1,615 m (5,300 ft) above sea level.
The station reports from 1927 to 1999, 73 years of record.
1,464 records set at Termo 1 E still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Termo 1 E set a daily record low minimum temperature of -13.3 C (8.1 F) on 31 March 1999.
About the Station
Location: California, United States, 40.87 latitude, -120.43 longitude.
Elevation: 1,615 m (5,300 ft).
Period of record: 1927 to 1999, 73 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
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 Termo 1 E. 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 Termo 1 E, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.6 C (60.1 F)
-31.1 C (-24.0 F)
n/a
n/a
Feb
18.3 C (64.9 F)
-37.2 C (-35.0 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-23.3 C (-9.9 F)
n/a
n/a
Apr
28.9 C (84.0 F)
-18.9 C (-2.0 F)
n/a
n/a
May
32.8 C (91.0 F)
-12.2 C (10.0 F)
n/a
n/a
Jun
36.7 C (98.1 F)
-7.2 C (19.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
-5.0 C (23.0 F)
n/a
n/a
Aug
38.3 C (100.9 F)
-5.6 C (21.9 F)
n/a
n/a
Sep
35.6 C (96.1 F)
-10.0 C (14.0 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-19.4 C (-2.9 F)
n/a
n/a
Nov
22.8 C (73.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Dec
15.6 C (60.1 F)
-36.1 C (-33.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Termo 1 E still stand. 1972 holds the most, with 61.
Standing records at Termo 1 E by the year they were set
Year set
Standing records
1927
3
1928
17
1962
17
1963
48
1964
42
1965
25
1966
55
1967
41
1968
47
1969
35
1970
29
1971
46
1972
61
1973
33
1974
52
1975
44
1976
52
1977
44
1978
38
1979
44
1980
31
1981
46
1982
24
1983
33
1984
29
1985
51
1986
33
1987
41
1988
46
1989
49
1990
57
1991
21
1992
38
1993
39
1994
33
1995
37
1996
36
1997
22
1998
21
1999
4
All-Time Record Progression
3 new records
3 all-time records were set at Termo 1 E between 23 January 1997 and 25 January 1997. Each dot is a new record.
When Termo 1 E set new all-time records
Date
Kind
Detail
1997-01-23
Record daily snowfall
Record daily snowfall 39.4 cm (15.5 in)
1997-01-24
Record daily snowfall
Record daily snowfall 45.7 cm (18.0 in)
1997-01-25
Record daily snowfall
Record daily snowfall 53.3 cm (21.0 in)
Wettest Day of Each Month
Oct: 94.0 mm (3.7 in)
The wettest day on record for each calendar month at Termo 1 E. The most was 94.0 mm (3.7 in) on 13 October 1962.
Record daily precipitation for each month at Termo 1 E
Month
Record daily precipitation (mm)
Date
Jan
34.3 mm (1.4 in)
3 January 1965
Feb
21.1 mm (0.8 in)
1 February 1975
Mar
32.0 mm (1.3 in)
12 March 1971
Apr
43.9 mm (1.7 in)
29 April 1995
May
30.0 mm (1.2 in)
14 May 1949
Jun
35.3 mm (1.4 in)
26 June 1971
Jul
26.2 mm (1.0 in)
17 July 1987
Aug
31.2 mm (1.2 in)
11 August 1965
Sep
41.4 mm (1.6 in)
15 September 1976
Oct
94.0 mm (3.7 in)
13 October 1962
Nov
40.6 mm (1.6 in)
23 November 1988
Dec
59.7 mm (2.4 in)
12 December 1995
Period of Record Coverage
1927 to 1999
Complete yearUnder 90 percent of days
40 years of record at Termo 1 E, 1927 to 1999. 4 years have data for under 90 percent of days and are left out of rankings: 1927, 1928, 1962, 1999.
Cooler than the station meanWarmer than the station mean
One stripe for each of 35 complete years at Termo 1 E, 1964 to 1998. Blue stripes are years cooler than the station's own mean of 6.7 C (44.1 F); red stripes are warmer. The coolest year was 1985, at 5.2 C (41.4 F), and the warmest was 1981, at 7.9 C (46.2 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Termo 1 E as warming stripes, 1964 to 1998
Year
Annual mean temperature
Difference from the station mean
1964
6.1 C
-0.58 C
1965
6.1 C
-0.58 C
1966
7.1 C
+0.38 C
1967
6.7 C
-0.04 C
1968
6.8 C
+0.11 C
1969
6.7 C
-0.04 C
1970
7.1 C
+0.39 C
1971
6.1 C
-0.62 C
1972
6.5 C
-0.18 C
1973
7.3 C
+0.62 C
1974
7.2 C
+0.49 C
1975
6.4 C
-0.31 C
1976
7.0 C
+0.28 C
1977
6.8 C
+0.12 C
1978
6.6 C
-0.06 C
1979
7.3 C
+0.63 C
1980
7.1 C
+0.37 C
1981
7.9 C
+1.21 C
1982
5.7 C
-1.00 C
1983
6.7 C
-0.02 C
1984
6.4 C
-0.33 C
1985
5.2 C
-1.46 C
1986
7.6 C
+0.88 C
1987
7.1 C
+0.42 C
1988
6.6 C
-0.07 C
1989
5.6 C
-1.07 C
1990
6.0 C
-0.71 C
1991
6.8 C
+0.06 C
1992
7.7 C
+0.97 C
1993
5.3 C
-1.45 C
1994
6.4 C
-0.32 C
1995
7.4 C
+0.72 C
1996
7.8 C
+1.06 C
1997
7.0 C
+0.31 C
1998
6.6 C
-0.08 C
The fitted trend in annual mean temperature here over 1964 to 1998 is 0.03 C (-0.20 to 0.26) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.36 to 0.46) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Termo 1 E
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.03 C (-0.20 to 0.26) per decade
0.05 F (-0.36 to 0.46) per decade
1964 to 1998
35
Not clearly different from zero
Mean daily maximum
-0.1 C (-0.4 to 0.2) per decade
-0.2 F (-0.7 to 0.3) per decade
1964 to 1998
35
Not clearly different from zero
Mean daily minimum
0.2 C (-0.1 to 0.5) per decade
0.3 F (-0.3 to 0.9) per decade
1964 to 1998
35
Not clearly different from zero
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
1927 to 1999
Yearly extremes at Termo 1 E: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1981
35.6 C (96.1 F)
40
Coldest night (TNn)
-37.2 C (-35.0 F)
1989
-26.1 C (-15.0 F)
40
Wettest day (Rx1day)
94.0 mm (3.7 in)
1962
24.3 mm (1.0 in)
44
Wettest five days (Rx5day)
141.0 mm (5.6 in)
1962
39.3 mm (1.5 in)
44
Longest dry spell (CDD)
106 days
1981
48 days
44
Hottest day (TXx)
The hottest day of the year at Termo 1 E, 1927 to 1999. The record is 38.3 C (100.9 F) in 1981, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Termo 1 E by year
Year
Hottest day (TXx)
1927
15.6 C (60.1 F)
1928
22.2 C (72.0 F)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1962
35.0 C (95.0 F)
1963
35.6 C (96.1 F)
1964
35.6 C (96.1 F)
1965
37.2 C (99.0 F)
1966
36.1 C (97.0 F)
1967
35.0 C (95.0 F)
1968
36.7 C (98.1 F)
1969
35.6 C (96.1 F)
1970
35.6 C (96.1 F)
1971
36.7 C (98.1 F)
1972
37.8 C (100.0 F)
1973
35.0 C (95.0 F)
1974
36.1 C (97.0 F)
1975
36.7 C (98.1 F)
1976
35.0 C (95.0 F)
1977
36.1 C (97.0 F)
1978
37.2 C (99.0 F)
1979
36.7 C (98.1 F)
1980
35.0 C (95.0 F)
1981
38.3 C (100.9 F)
1982
35.0 C (95.0 F)
1983
36.7 C (98.1 F)
1984
36.1 C (97.0 F)
1985
35.6 C (96.1 F)
1986
33.9 C (93.0 F)
1987
35.0 C (95.0 F)
1988
36.7 C (98.1 F)
1989
33.9 C (93.0 F)
1990
36.7 C (98.1 F)
1991
35.0 C (95.0 F)
1992
36.1 C (97.0 F)
1993
34.4 C (93.9 F)
1994
36.1 C (97.0 F)
1995
32.8 C (91.0 F)
1996
36.1 C (97.0 F)
1997
35.6 C (96.1 F)
1998
36.1 C (97.0 F)
1999
16.1 C (61.0 F)
Coldest night (TNn)
The coldest night of the year at Termo 1 E, 1927 to 1999. The record is -37.2 C (-35.0 F) in 1989, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Termo 1 E by year
Year
Coldest night (TNn)
1927
-24.4 C (-11.9 F)
1928
-22.2 C (-8.0 F)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1962
-16.7 C (1.9 F)
1963
-22.8 C (-9.0 F)
1964
-21.7 C (-7.1 F)
1965
-25.6 C (-14.1 F)
1966
-26.1 C (-15.0 F)
1967
-27.2 C (-17.0 F)
1968
-28.9 C (-20.0 F)
1969
-27.2 C (-17.0 F)
1970
-26.7 C (-16.1 F)
1971
-27.8 C (-18.0 F)
1972
-31.7 C (-25.1 F)
1973
-22.8 C (-9.0 F)
1974
-28.9 C (-20.0 F)
1975
-26.7 C (-16.1 F)
1976
-22.2 C (-8.0 F)
1977
-28.9 C (-20.0 F)
1978
-28.9 C (-20.0 F)
1979
-28.3 C (-18.9 F)
1980
-21.1 C (-6.0 F)
1981
-18.9 C (-2.0 F)
1982
-27.2 C (-17.0 F)
1983
-22.2 C (-8.0 F)
1984
-23.3 C (-9.9 F)
1985
-32.2 C (-26.0 F)
1986
-16.7 C (1.9 F)
1987
-26.1 C (-15.0 F)
1988
-30.6 C (-23.1 F)
1989
-37.2 C (-35.0 F)
1990
-36.1 C (-33.0 F)
1991
-22.8 C (-9.0 F)
1992
-25.6 C (-14.1 F)
1993
-31.1 C (-24.0 F)
1994
-27.8 C (-18.0 F)
1995
-21.1 C (-6.0 F)
1996
-18.9 C (-2.0 F)
1997
-24.4 C (-11.9 F)
1998
-36.1 C (-33.0 F)
1999
-18.9 C (-2.0 F)
Wettest day (Rx1day)
The wettest day of the year at Termo 1 E, 1927 to 1999. The record is 94.0 mm (3.7 in) in 1962, marked on the chart; the median year is 24.3 mm (1.0 in).
Wettest day (Rx1day) at Termo 1 E by year
Year
Wettest day (Rx1day)
1927
6.4 mm (0.25 in)
1928
28.2 mm (1.1 in)
1948
9.9 mm (0.39 in)
1949
30.0 mm (1.2 in)
1950
26.7 mm (1.1 in)
1951
26.2 mm (1.0 in)
1962
94.0 mm (3.7 in)
1963
25.9 mm (1.0 in)
1964
27.9 mm (1.1 in)
1965
34.3 mm (1.4 in)
1966
18.8 mm (0.7 in)
1967
35.1 mm (1.4 in)
1968
18.3 mm (0.7 in)
1969
22.9 mm (0.9 in)
1970
21.3 mm (0.8 in)
1971
35.3 mm (1.4 in)
1972
24.4 mm (1.0 in)
1973
19.1 mm (0.8 in)
1974
26.9 mm (1.1 in)
1975
45.7 mm (1.8 in)
1976
41.4 mm (1.6 in)
1977
31.8 mm (1.3 in)
1978
19.1 mm (0.8 in)
1979
21.6 mm (0.9 in)
1980
29.2 mm (1.1 in)
1981
23.1 mm (0.9 in)
1982
18.3 mm (0.7 in)
1983
20.6 mm (0.8 in)
1984
15.7 mm (0.6 in)
1985
24.1 mm (0.9 in)
1986
23.9 mm (0.9 in)
1987
26.2 mm (1.0 in)
1988
40.6 mm (1.6 in)
1989
19.6 mm (0.8 in)
1990
16.8 mm (0.7 in)
1991
20.8 mm (0.8 in)
1992
11.7 mm (0.5 in)
1993
35.1 mm (1.4 in)
1994
22.9 mm (0.9 in)
1995
59.7 mm (2.4 in)
1996
23.6 mm (0.9 in)
1997
29.2 mm (1.1 in)
1998
29.2 mm (1.1 in)
1999
19.1 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Termo 1 E, 1927 to 1999. The record is 141.0 mm (5.6 in) in 1962, marked on the chart; the median year is 39.3 mm (1.5 in).
Wettest five days (Rx5day) at Termo 1 E by year
Year
Wettest five days (Rx5day)
1927
11.5 mm (0.5 in)
1928
44.4 mm (1.7 in)
1948
20.6 mm (0.8 in)
1949
33.1 mm (1.3 in)
1950
41.7 mm (1.6 in)
1951
30.0 mm (1.2 in)
1962
141.0 mm (5.6 in)
1963
43.2 mm (1.7 in)
1964
55.3 mm (2.2 in)
1965
70.2 mm (2.8 in)
1966
30.4 mm (1.2 in)
1967
43.4 mm (1.7 in)
1968
22.1 mm (0.9 in)
1969
51.0 mm (2.0 in)
1970
42.5 mm (1.7 in)
1971
91.2 mm (3.6 in)
1972
28.2 mm (1.1 in)
1973
32.3 mm (1.3 in)
1974
34.3 mm (1.4 in)
1975
49.0 mm (1.9 in)
1976
56.6 mm (2.2 in)
1977
75.0 mm (3.0 in)
1978
24.4 mm (1.0 in)
1979
21.6 mm (0.9 in)
1980
54.8 mm (2.2 in)
1981
39.9 mm (1.6 in)
1982
34.8 mm (1.4 in)
1983
36.6 mm (1.4 in)
1984
20.3 mm (0.8 in)
1985
43.4 mm (1.7 in)
1986
54.9 mm (2.2 in)
1987
34.1 mm (1.3 in)
1988
49.6 mm (2.0 in)
1989
32.6 mm (1.3 in)
1990
37.3 mm (1.5 in)
1991
36.6 mm (1.4 in)
1992
27.7 mm (1.1 in)
1993
52.6 mm (2.1 in)
1994
43.9 mm (1.7 in)
1995
69.1 mm (2.7 in)
1996
38.7 mm (1.5 in)
1997
37.9 mm (1.5 in)
1998
52.0 mm (2.0 in)
1999
20.4 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Termo 1 E, 1927 to 1999. The record is 106 days in 1981, marked on the chart; the median year is 48 days.
Longest dry spell (CDD) at Termo 1 E by year
Year
Longest dry spell (CDD)
1927
14 days
1928
31 days
1948
23 days
1949
71 days
1950
37 days
1951
101 days
1962
69 days
1963
47 days
1964
57 days
1965
45 days
1966
48 days
1967
28 days
1968
52 days
1969
34 days
1970
56 days
1971
66 days
1972
84 days
1973
41 days
1974
66 days
1975
44 days
1976
44 days
1977
48 days
1978
62 days
1979
39 days
1980
28 days
1981
106 days
1982
37 days
1983
52 days
1984
42 days
1985
63 days
1986
64 days
1987
93 days
1988
41 days
1989
66 days
1990
45 days
1991
42 days
1992
95 days
1993
69 days
1994
73 days
1995
89 days
1996
47 days
1997
34 days
1998
47 days
1999
22 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
35 years with a frost
Across 35 years with a frost, the median last spring frost at Termo 1 E falls on 25 June and the median first autumn frost on 6 July, which leaves a median of 16 days between them.
Fitted over all years, the growing season changes by -0.6 days per decade at this station.
Frost dates and growing season at Termo 1 E
Measure
Median, all years
Earliest period
Recent period (1969 to 1998)
Recent against earliest
Fitted trend
Last spring frost
25 June
n/a
25 June
n/a
+0.4 days per decade
First autumn frost
6 July
n/a
6 July
n/a
-0.1 days per decade
Growing days
16 days
n/a
16 days
n/a
-0.6 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.
Rainfall Return Levels
38 years, 1949 to 1998
A day with at least 24.7 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 60.3 mm (2.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Termo 1 E: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
24.7 mm (1.0 in)
5 years
32.7 mm (1.3 in)
10 years
38.6 mm (1.5 in)
25 years
46.7 mm (1.8 in)
50 years
53.3 mm (2.1 in)
Longer than the 38 years of record
100 years
60.3 mm (2.4 in)
Longer than the 38 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 38 years of values from 1949 to 1998.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 59.7 mm (2.4 in) in 1995; 45.7 mm (1.8 in) in 1975; 41.4 mm (1.6 in) in 1976.
Download the Data
Data for Termo 1 E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Termo 1 E 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.