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

Lockwood 1 N Weather Records (USC00045017)

Record envelope, standing records and threshold days for Lockwood 1 N (USC00045017), California, United States, with 36 years of record.

Key Facts for Lockwood 1 N

  • Lockwood 1 N (USC00045017) is a weather station in California, United States at 35.97 latitude and -121.08 longitude, 323 m (1,060 ft) above sea level.
  • The station reports from 1943 to 1978, 36 years of record.
  • 0 records set at Lockwood 1 N still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Lockwood 1 N set a daily record precipitation of 20.1 mm (0.8 in) on 25 April 1978.

About the Station

  • Location: California, United States, 35.97 latitude, -121.08 longitude.
  • Elevation: 323 m (1,060 ft).
  • Period of record: 1943 to 1978, 36 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 Lockwood 1 N, with 2026 drawn through them The band shows the record high and record low for each calendar day at Lockwood 1 N. 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 Lockwood 1 N. 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 Lockwood 1 N, 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 Lockwood 1 N by the year they were set 0 records at Lockwood 1 N still stand. 00000000000
0 records at Lockwood 1 N still stand.
Standing records at Lockwood 1 N by the year they were set
Year setStanding records

Wettest Day of Each Month

Feb: 78.7 mm (3.1 in)
Record daily precipitation for each month at Lockwood 1 N The wettest day on record for each calendar month at Lockwood 1 N. The most was 78.7 mm (3.1 in) on 2 February 1945. 020406080 Jan: 54.6 mm (2.1 in), 21 January 1969 Jan Feb: 78.7 mm (3.1 in), 2 February 1945 Feb Mar: 53.6 mm (2.1 in), 15 March 1952 Mar Apr: 41.7 mm (1.6 in), 3 April 1958 Apr May: 27.4 mm (1.1 in), 1 May 1955 May Jun: 5.8 mm (0.23 in), 10 June 1957 Jun Jul: 5.6 mm (0.22 in), 30 July 1966 Jul Aug: 24.9 mm (1.0 in), 19 August 1976 Aug Sep: 26.7 mm (1.1 in), 29 September 1976 Sep Oct: 38.1 mm (1.5 in), 11 October 1957 Oct Nov: 48.5 mm (1.9 in), 23 November 1965 Nov Dec: 70.4 mm (2.8 in), 23 December 1955 Dec
The wettest day on record for each calendar month at Lockwood 1 N. The most was 78.7 mm (3.1 in) on 2 February 1945.
Record daily precipitation for each month at Lockwood 1 N
MonthRecord daily precipitation (mm)Date
Jan54.6 mm (2.1 in)21 January 1969
Feb78.7 mm (3.1 in)2 February 1945
Mar53.6 mm (2.1 in)15 March 1952
Apr41.7 mm (1.6 in)3 April 1958
May27.4 mm (1.1 in)1 May 1955
Jun5.8 mm (0.23 in)10 June 1957
Jul5.6 mm (0.22 in)30 July 1966
Aug24.9 mm (1.0 in)19 August 1976
Sep26.7 mm (1.1 in)29 September 1976
Oct38.1 mm (1.5 in)11 October 1957
Nov48.5 mm (1.9 in)23 November 1965
Dec70.4 mm (2.8 in)23 December 1955

Latest Records

20
Latest records at Lockwood 1 N
DateStationRecordValueBeat old record byOld record stoodSignificance
25 April 1978Lockwood 1 N, USdaily rain20.1 mm (0.8 in)16.8 mm (0.7 in)27 years20 of 100 (Routine)
16 April 1978Lockwood 1 N, USdaily rain13.5 mm (0.5 in)9.4 mm (0.37 in)3 years16 of 100 (Routine)
7 April 1978Lockwood 1 N, USdaily rain (Tie)10.9 mm (0.4 in)tie15 years1 of 100 (Routine)
4 April 1978Lockwood 1 N, USdaily rain18.5 mm (0.7 in)11.6 mm (0.5 in)11 years20 of 100 (Routine)
22 March 1978Lockwood 1 N, USdaily rain46.7 mm (1.8 in)22.8 mm (0.9 in)20 years32 of 100 (Routine)
9 March 1978Lockwood 1 N, USdaily rain6.1 mm (0.24 in)1.5 mm (0.06 in)3 years4 of 100 (Routine)
13 February 1978Lockwood 1 N, USdaily rain31.8 mm (1.3 in)10.5 mm (0.4 in)4 years12 of 100 (Routine)
9 February 1978Lockwood 1 N, USdaily rain39.9 mm (1.6 in)2.8 mm (0.11 in)16 years9 of 100 (Routine)
8 February 1978Lockwood 1 N, USdaily rain17.8 mm (0.7 in)3.8 mm (0.15 in)2 years6 of 100 (Routine)
7 February 1978Lockwood 1 N, USdaily rain16.3 mm (0.6 in)0.3 mm (0.01 in)4 years4 of 100 (Routine)
16 January 1978Lockwood 1 N, USdaily rain20.3 mm (0.8 in)5.1 mm (0.20 in)23 years13 of 100 (Routine)
15 January 1978Lockwood 1 N, USdaily rain29.7 mm (1.2 in)16.0 mm (0.6 in)26 years23 of 100 (Routine)
3 January 1978Lockwood 1 N, USdaily rain18.8 mm (0.7 in)3.8 mm (0.15 in)0 years6 of 100 (Routine)
28 December 1977Lockwood 1 N, USdaily rain42.2 mm (1.7 in)26.7 mm (1.1 in)3 years25 of 100 (Routine)
18 December 1977Lockwood 1 N, USdaily rain9.4 mm (0.37 in)0.5 mm (0.02 in)7 years5 of 100 (Routine)
17 December 1977Lockwood 1 N, USdaily rain26.7 mm (1.1 in)3.8 mm (0.15 in)28 years14 of 100 (Routine)
9 June 1977Lockwood 1 N, USdaily rain0.8 mm (0.03 in)0.8 mm (0.03 in)32 years12 of 100 (Routine)
24 May 1977Lockwood 1 N, USdaily rain2.8 mm (0.11 in)2.8 mm (0.11 in)32 years17 of 100 (Routine)
9 May 1977Lockwood 1 N, USdaily rain20.6 mm (0.8 in)3.1 mm (0.12 in)20 years14 of 100 (Routine)
3 January 1977Lockwood 1 N, USdaily rain15.0 mm (0.6 in)11.2 mm (0.4 in)33 years20 of 100 (Routine)

Extremes by Year

1943 to 1978
Yearly extremes at Lockwood 1 N: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)78.7 mm (3.1 in)194541.6 mm (1.6 in)36
Wettest five days (Rx5day)159.6 mm (6.3 in)195570.9 mm (2.8 in)36
Longest dry spell (CDD)198 days1973125 days36

Wettest day (Rx1day)

Wettest day (Rx1day) at Lockwood 1 N by year The wettest day of the year at Lockwood 1 N, 1943 to 1978. The record is 78.7 mm (3.1 in) in 1945, marked on the chart; the median year is 41.6 mm (1.6 in). 020406080195019601970Record: 78.7 mm (3.1 in) in 1945
The wettest day of the year at Lockwood 1 N, 1943 to 1978. The record is 78.7 mm (3.1 in) in 1945, marked on the chart; the median year is 41.6 mm (1.6 in).
Wettest day (Rx1day) at Lockwood 1 N by year
YearWettest day (Rx1day)
194326.9 mm (1.1 in)
194437.1 mm (1.5 in)
194578.7 mm (3.1 in)
194637.6 mm (1.5 in)
194715.7 mm (0.6 in)
194844.7 mm (1.8 in)
194937.3 mm (1.5 in)
195048.5 mm (1.9 in)
195133.0 mm (1.3 in)
195253.6 mm (2.1 in)
195340.9 mm (1.6 in)
195440.6 mm (1.6 in)
195570.4 mm (2.8 in)
195631.8 mm (1.3 in)
195738.1 mm (1.5 in)
195853.3 mm (2.1 in)
195944.5 mm (1.8 in)
196033.5 mm (1.3 in)
196150.5 mm (2.0 in)
196253.8 mm (2.1 in)
196351.6 mm (2.0 in)
196437.8 mm (1.5 in)
196548.5 mm (1.9 in)
196655.9 mm (2.2 in)
196735.6 mm (1.4 in)
196824.1 mm (0.9 in)
196954.6 mm (2.1 in)
197053.3 mm (2.1 in)
197136.1 mm (1.4 in)
197222.9 mm (0.9 in)
197327.9 mm (1.1 in)
197443.4 mm (1.7 in)
197547.0 mm (1.9 in)
197626.7 mm (1.1 in)
197742.2 mm (1.7 in)
197846.7 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Lockwood 1 N by year The wettest five days of the year at Lockwood 1 N, 1943 to 1978. The record is 159.6 mm (6.3 in) in 1955, marked on the chart; the median year is 70.9 mm (2.8 in). 050100150200195019601970Record: 159.6 mm (6.3 in) in 1955
The wettest five days of the year at Lockwood 1 N, 1943 to 1978. The record is 159.6 mm (6.3 in) in 1955, marked on the chart; the median year is 70.9 mm (2.8 in).
Wettest five days (Rx5day) at Lockwood 1 N by year
YearWettest five days (Rx5day)
194344.2 mm (1.7 in)
194499.8 mm (3.9 in)
1945123.9 mm (4.9 in)
194665.6 mm (2.6 in)
194732.4 mm (1.3 in)
194852.9 mm (2.1 in)
194963.7 mm (2.5 in)
195070.9 mm (2.8 in)
195169.9 mm (2.8 in)
195261.7 mm (2.4 in)
195340.9 mm (1.6 in)
195479.2 mm (3.1 in)
1955159.6 mm (6.3 in)
195646.0 mm (1.8 in)
195751.5 mm (2.0 in)
195885.7 mm (3.4 in)
195970.9 mm (2.8 in)
196050.3 mm (2.0 in)
196177.7 mm (3.1 in)
1962113.5 mm (4.5 in)
1963134.7 mm (5.3 in)
196450.1 mm (2.0 in)
1965117.5 mm (4.6 in)
196692.5 mm (3.6 in)
196768.1 mm (2.7 in)
196835.1 mm (1.4 in)
1969153.2 mm (6.0 in)
197093.4 mm (3.7 in)
197177.0 mm (3.0 in)
197234.1 mm (1.3 in)
197365.5 mm (2.6 in)
1974149.5 mm (5.9 in)
197584.2 mm (3.3 in)
197654.9 mm (2.2 in)
197771.4 mm (2.8 in)
1978106.3 mm (4.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Lockwood 1 N by year The longest dry spell of the year at Lockwood 1 N, 1943 to 1978. The record is 198 days in 1973, marked on the chart; the median year is 125 days. 050100150200195019601970Record: 198 days in 1973
The longest dry spell of the year at Lockwood 1 N, 1943 to 1978. The record is 198 days in 1973, marked on the chart; the median year is 125 days.
Longest dry spell (CDD) at Lockwood 1 N by year
YearLongest dry spell (CDD)
194347 days
1944144 days
194573 days
1946126 days
1947135 days
1948101 days
1949128 days
195046 days
195147 days
195281 days
1953187 days
1954113 days
1955113 days
1956106 days
195751 days
1958106 days
1959145 days
1960154 days
1961170 days
1962150 days
196399 days
196495 days
1965123 days
1966149 days
1967133 days
1968104 days
1969135 days
1970190 days
1971141 days
1972180 days
1973198 days
1974186 days
1975175 days
197665 days
197789 days
197835 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

33 years, 1944 to 1977

A day with at least 42.4 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 74.3 mm (2.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Lockwood 1 N: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years42.4 mm (1.7 in)
5 years53.9 mm (2.1 in)
10 years60.1 mm (2.4 in)
25 years66.7 mm (2.6 in)
50 years70.8 mm (2.8 in)Longer than the 33 years of record
100 years74.3 mm (2.9 in)Longer than the 33 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, 33 years of values from 1944 to 1977.

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: 78.7 mm (3.1 in) in 1945; 70.4 mm (2.8 in) in 1955; 55.9 mm (2.2 in) in 1966.

Download the Data

  • Data for Lockwood 1 N standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Lockwood 1 N 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).