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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Upper Lake 7 W Weather Records (USC00049167)

Record envelope, standing records and threshold days for Upper Lake 7 W (USC00049167), California, United States, with 41 years of record.

Key Facts for Upper Lake 7 W

  • Upper Lake 7 W (USC00049167) is a weather station in California, United States at 39.18 latitude and -123.03 longitude, 477 m (1,564 ft) above sea level.
  • The station reports from 1948 to 1988, 41 years of record.
  • 0 records set at Upper Lake 7 W still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Upper Lake 7 W set a monthly record daily precipitation of 91.2 mm (3.6 in) on 17 February 1986.

About the Station

  • Location: California, United States, 39.18 latitude, -123.03 longitude.
  • Elevation: 477 m (1,564 ft).
  • Period of record: 1948 to 1988, 41 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Upper Lake 7 W, with 2026 drawn through them The band shows the record high and record low for each calendar day at Upper Lake 7 W. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Upper Lake 7 W. 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 Upper Lake 7 W, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Upper Lake 7 W by the year they were set 0 records at Upper Lake 7 W still stand. 00000000000
0 records at Upper Lake 7 W still stand.
Standing records at Upper Lake 7 W by the year they were set
Year setStanding records

Wettest Day of Each Month

Dec: 159.5 mm (6.3 in)
Record daily precipitation for each month at Upper Lake 7 W The wettest day on record for each calendar month at Upper Lake 7 W. The most was 159.5 mm (6.3 in) on 22 December 1964. 050100150200 Jan: 99.3 mm (3.9 in), 16 January 1974 Jan Feb: 91.2 mm (3.6 in), 17 February 1986 Feb Mar: 76.2 mm (3.0 in), 29 March 1974 Mar Apr: 75.2 mm (3.0 in), 23 April 1983 Apr May: 40.6 mm (1.6 in), 18 May 1957 May Jun: 56.1 mm (2.2 in), 2 June 1967 Jun Jul: 23.9 mm (0.9 in), 8 July 1974 Jul Aug: 27.2 mm (1.1 in), 28 August 1954 Aug Sep: 38.1 mm (1.5 in), 18 September 1959 Sep Oct: 104.1 mm (4.1 in), 12 October 1962 Oct Nov: 97.5 mm (3.8 in), 30 November 1973 Nov Dec: 159.5 mm (6.3 in), 22 December 1964 Dec
The wettest day on record for each calendar month at Upper Lake 7 W. The most was 159.5 mm (6.3 in) on 22 December 1964.
Record daily precipitation for each month at Upper Lake 7 W
MonthRecord daily precipitation (mm)Date
Jan99.3 mm (3.9 in)16 January 1974
Feb91.2 mm (3.6 in)17 February 1986
Mar76.2 mm (3.0 in)29 March 1974
Apr75.2 mm (3.0 in)23 April 1983
May40.6 mm (1.6 in)18 May 1957
Jun56.1 mm (2.2 in)2 June 1967
Jul23.9 mm (0.9 in)8 July 1974
Aug27.2 mm (1.1 in)28 August 1954
Sep38.1 mm (1.5 in)18 September 1959
Oct104.1 mm (4.1 in)12 October 1962
Nov97.5 mm (3.8 in)30 November 1973
Dec159.5 mm (6.3 in)22 December 1964

Latest Records

20
Latest records at Upper Lake 7 W
DateStationRecordValueBeat old record byOld record stoodSignificance
17 February 1986Upper Lake 7 W, USmonthly rain91.2 mm (3.6 in)9.9 mm (0.39 in)29 years27 of 100 (Routine)
2 December 1985Upper Lake 7 W, USdaily rain67.6 mm (2.7 in)12.2 mm (0.5 in)19 years14 of 100 (Routine)
21 October 1985Upper Lake 7 W, USdaily rain42.4 mm (1.7 in)26.9 mm (1.1 in)15 years26 of 100 (Routine)
8 September 1985Upper Lake 7 W, USdaily rain36.6 mm (1.4 in)35.6 mm (1.4 in)35 years52 of 100 (Notable)
7 September 1985Upper Lake 7 W, USdaily rain3.0 mm (0.12 in)3.0 mm (0.12 in)36 years17 of 100 (Routine)
29 May 1985Upper Lake 7 W, USdaily rain1.3 mm (0.05 in)1.3 mm (0.05 in)36 years14 of 100 (Routine)
28 May 1985Upper Lake 7 W, USdaily rain0.3 mm (0.01 in)0.3 mm (0.01 in)36 years13 of 100 (Routine)
28 March 1985Upper Lake 7 W, USdaily rain35.6 mm (1.4 in)11.2 mm (0.4 in)22 years16 of 100 (Routine)
27 November 1984Upper Lake 7 W, USdaily rain32.8 mm (1.3 in)9.2 mm (0.36 in)14 years12 of 100 (Routine)
16 October 1984Upper Lake 7 W, USdaily rain22.1 mm (0.9 in)13.7 mm (0.5 in)21 years18 of 100 (Routine)
7 June 1984Upper Lake 7 W, USdaily rain1.8 mm (0.07 in)0.5 mm (0.02 in)26 years10 of 100 (Routine)
9 December 1983Upper Lake 7 W, USdaily rain70.1 mm (2.8 in)45.0 mm (1.8 in)28 years35 of 100 (Notable)
17 November 1983Upper Lake 7 W, USdaily rain56.1 mm (2.2 in)29.4 mm (1.2 in)9 years24 of 100 (Routine)
31 August 1983Upper Lake 7 W, USdaily rain21.6 mm (0.9 in)21.1 mm (0.8 in)16 years20 of 100 (Routine)
1 July 1983Upper Lake 7 W, USdaily rain0.8 mm (0.03 in)0.8 mm (0.03 in)34 years13 of 100 (Routine)
30 April 1983Upper Lake 7 W, USdaily rain10.2 mm (0.4 in)2.3 mm (0.09 in)30 years14 of 100 (Routine)
28 April 1983Upper Lake 7 W, USdaily rain37.6 mm (1.5 in)33.8 mm (1.3 in)28 years43 of 100 (Notable)
24 April 1983Upper Lake 7 W, USdaily rain26.2 mm (1.0 in)15.5 mm (0.6 in)8 years19 of 100 (Routine)
23 April 1983Upper Lake 7 W, USmonthly rain75.2 mm (3.0 in)25.7 mm (1.0 in)1 year37 of 100 (Notable)
24 March 1983Upper Lake 7 W, USdaily rain45.0 mm (1.8 in)14.8 mm (0.6 in)32 years22 of 100 (Routine)

Extremes by Year

1948 to 1988
Yearly extremes at Upper Lake 7 W: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)159.5 mm (6.3 in)196476.9 mm (3.0 in)40
Wettest five days (Rx5day)380.9 mm (15.0 in)1964162.2 mm (6.4 in)40
Longest dry spell (CDD)145 days196385 days40

Wettest day (Rx1day)

Wettest day (Rx1day) at Upper Lake 7 W by year The wettest day of the year at Upper Lake 7 W, 1948 to 1988. The record is 159.5 mm (6.3 in) in 1964, marked on the chart; the median year is 76.9 mm (3.0 in). 0501001502001950196019701980Record: 159.5 mm (6.3 in) in 1964
The wettest day of the year at Upper Lake 7 W, 1948 to 1988. The record is 159.5 mm (6.3 in) in 1964, marked on the chart; the median year is 76.9 mm (3.0 in).
Wettest day (Rx1day) at Upper Lake 7 W by year
YearWettest day (Rx1day)
194827.2 mm (1.1 in)
194950.3 mm (2.0 in)
195076.2 mm (3.0 in)
195159.7 mm (2.4 in)
195266.0 mm (2.6 in)
195351.8 mm (2.0 in)
195462.7 mm (2.5 in)
195583.6 mm (3.3 in)
195681.3 mm (3.2 in)
195769.3 mm (2.7 in)
195879.5 mm (3.1 in)
195977.5 mm (3.1 in)
196079.5 mm (3.1 in)
196150.8 mm (2.0 in)
1962104.1 mm (4.1 in)
196386.9 mm (3.4 in)
1964159.5 mm (6.3 in)
196577.5 mm (3.1 in)
196697.5 mm (3.8 in)
196778.7 mm (3.1 in)
196890.9 mm (3.6 in)
196957.7 mm (2.3 in)
197090.4 mm (3.6 in)
197179.5 mm (3.1 in)
197241.1 mm (1.6 in)
197397.5 mm (3.8 in)
197499.3 mm (3.9 in)
197566.3 mm (2.6 in)
197634.5 mm (1.4 in)
197762.2 mm (2.4 in)
197876.5 mm (3.0 in)
197977.2 mm (3.0 in)
198078.2 mm (3.1 in)
198173.9 mm (2.9 in)
198269.6 mm (2.7 in)
198383.8 mm (3.3 in)
198456.6 mm (2.2 in)
198570.6 mm (2.8 in)
198691.2 mm (3.6 in)
19880.0 mm (0.00 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Upper Lake 7 W by year The wettest five days of the year at Upper Lake 7 W, 1948 to 1988. The record is 380.9 mm (15.0 in) in 1964, marked on the chart; the median year is 162.2 mm (6.4 in). 01002003004001950196019701980Record: 380.9 mm (15.0 in) in 1964
The wettest five days of the year at Upper Lake 7 W, 1948 to 1988. The record is 380.9 mm (15.0 in) in 1964, marked on the chart; the median year is 162.2 mm (6.4 in).
Wettest five days (Rx5day) at Upper Lake 7 W by year
YearWettest five days (Rx5day)
194855.2 mm (2.2 in)
194996.1 mm (3.8 in)
1950130.3 mm (5.1 in)
1951174.6 mm (6.9 in)
1952155.9 mm (6.1 in)
1953119.7 mm (4.7 in)
1954127.7 mm (5.0 in)
1955222.5 mm (8.8 in)
1956198.1 mm (7.8 in)
1957180.9 mm (7.1 in)
1958147.6 mm (5.8 in)
1959174.7 mm (6.9 in)
1960198.1 mm (7.8 in)
1961126.5 mm (5.0 in)
1962159.3 mm (6.3 in)
1963211.9 mm (8.3 in)
1964380.9 mm (15.0 in)
1965205.5 mm (8.1 in)
1966161.6 mm (6.4 in)
1967198.2 mm (7.8 in)
1968165.5 mm (6.5 in)
1969152.8 mm (6.0 in)
1970208.8 mm (8.2 in)
1971153.7 mm (6.1 in)
197291.4 mm (3.6 in)
1973159.6 mm (6.3 in)
1974166.6 mm (6.6 in)
1975169.0 mm (6.7 in)
1976102.3 mm (4.0 in)
1977124.7 mm (4.9 in)
1978267.0 mm (10.5 in)
1979174.0 mm (6.9 in)
1980211.1 mm (8.3 in)
1981162.8 mm (6.4 in)
1982219.1 mm (8.6 in)
1983250.8 mm (9.9 in)
1984148.0 mm (5.8 in)
1985106.0 mm (4.2 in)
1986130.7 mm (5.1 in)
19880.0 mm (0.00 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Upper Lake 7 W by year The longest dry spell of the year at Upper Lake 7 W, 1948 to 1988. The record is 145 days in 1963, marked on the chart; the median year is 85 days. 0501001501950196019701980Record: 145 days in 1963
The longest dry spell of the year at Upper Lake 7 W, 1948 to 1988. The record is 145 days in 1963, marked on the chart; the median year is 85 days.
Longest dry spell (CDD) at Upper Lake 7 W by year
YearLongest dry spell (CDD)
194874 days
194967 days
195083 days
1951140 days
1952110 days
195340 days
195476 days
1955137 days
195660 days
195773 days
195886 days
1959110 days
196060 days
196172 days
196267 days
1963145 days
196491 days
1965110 days
1966111 days
1967120 days
196889 days
1969109 days
1970130 days
197194 days
197267 days
1973118 days
197483 days
197559 days
197648 days
197790 days
1978112 days
1979117 days
1980104 days
198180 days
1982106 days
198370 days
198483 days
198579 days
19869 days
198831 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.

Rainfall Return Levels

36 years, 1949 to 1985

A day with at least 73.2 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 125.4 mm (4.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Upper Lake 7 W: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years73.2 mm (2.9 in)
5 years90.5 mm (3.6 in)
10 years100.5 mm (4.0 in)
25 years111.6 mm (4.4 in)
50 years118.9 mm (4.7 in)Longer than the 36 years of record
100 years125.4 mm (4.9 in)Longer than the 36 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, 36 years of values from 1949 to 1985.

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: 159.5 mm (6.3 in) in 1964; 99.3 mm (3.9 in) in 1974; 97.5 mm (3.8 in) in 1966.

Download the Data

  • Data for Upper Lake 7 W standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Upper Lake 7 W 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 . Last revised (2025-12-31).