Daily records
Page built 2026-10-15
Data as of 2025-12-31
Search
Built 2026-10-15 (15 October 2026)

Mehama Weather Records (USC00355447)

Record envelope, standing records and threshold days for Mehama (USC00355447), Oregon, United States, with 44 years of record.

Key Facts for Mehama

  • Mehama (USC00355447) is a weather station in Oregon, United States at 44.79 latitude and -122.62 longitude, 189 m (620 ft) above sea level.
  • The station reports from 1923 to 1966, 44 years of record.
  • 0 records set at Mehama still stand.
  • Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
  • Mehama tied a daily record precipitation of 18.0 mm (0.7 in) on 10 April 1966.

About the Station

  • Location: Oregon, United States, 44.79 latitude, -122.62 longitude.
  • Elevation: 189 m (620 ft).
  • Period of record: 1923 to 1966, 44 years.
  • Eligible elements: prcp, snow.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Mehama, with 2026 drawn through them The band shows the record high and record low for each calendar day at Mehama. 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 Mehama. 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 Mehama, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Mehama by the year they were set 0 records at Mehama still stand. 00000000000
0 records at Mehama still stand.
Standing records at Mehama by the year they were set
Year setStanding records

Wettest Day of Each Month

Feb: 104.6 mm (4.1 in)
Record daily precipitation for each month at Mehama The wettest day on record for each calendar month at Mehama. The most was 104.6 mm (4.1 in) on 18 February 1949. 050100150 Jan: 84.1 mm (3.3 in), 7 January 1948 Jan Feb: 104.6 mm (4.1 in), 18 February 1949 Feb Mar: 69.9 mm (2.8 in), 31 March 1931 Mar Apr: 60.5 mm (2.4 in), 1 April 1931 Apr May: 57.7 mm (2.3 in), 2 May 1949 May Jun: 53.3 mm (2.1 in), 29 June 1952 Jun Jul: 26.9 mm (1.1 in), 1 July 1954 Jul Aug: 46.5 mm (1.8 in), 18 August 1926 Aug Sep: 67.3 mm (2.6 in), 8 September 1925 Sep Oct: 80.8 mm (3.2 in), 16 October 1947 Oct Nov: 101.9 mm (4.0 in), 25 November 1960 Nov Dec: 80.8 mm (3.2 in), 22 December 1964 Dec
The wettest day on record for each calendar month at Mehama. The most was 104.6 mm (4.1 in) on 18 February 1949.
Record daily precipitation for each month at Mehama
MonthRecord daily precipitation (mm)Date
Jan84.1 mm (3.3 in)7 January 1948
Feb104.6 mm (4.1 in)18 February 1949
Mar69.9 mm (2.8 in)31 March 1931
Apr60.5 mm (2.4 in)1 April 1931
May57.7 mm (2.3 in)2 May 1949
Jun53.3 mm (2.1 in)29 June 1952
Jul26.9 mm (1.1 in)1 July 1954
Aug46.5 mm (1.8 in)18 August 1926
Sep67.3 mm (2.6 in)8 September 1925
Oct80.8 mm (3.2 in)16 October 1947
Nov101.9 mm (4.0 in)25 November 1960
Dec80.8 mm (3.2 in)22 December 1964

Latest Records

20
Latest records at Mehama
DateStationRecordValueBeat old record byOld record stoodSignificance
10 April 1966Mehama, USdaily rain (Tie)18.0 mm (0.7 in)tie28 years3 of 100 (Routine)
16 March 1966Mehama, USdaily snowfall3.8 cm (1.5 in)2.5 cm (1.0 in)28 years19 of 100 (Routine)
10 March 1966Mehama, USdaily rain45.5 mm (1.8 in)6.9 mm (0.27 in)19 years15 of 100 (Routine)
1 March 1966Mehama, USdaily snowfall (Tie)2.5 cm (1.0 in)tie4 years1 of 100 (Routine)
4 January 1966Mehama, USdaily rain68.6 mm (2.7 in)3.3 mm (0.13 in)10 years9 of 100 (Routine)
24 December 1965Mehama, USdaily rain36.1 mm (1.4 in)5.6 mm (0.22 in)28 years16 of 100 (Routine)
4 November 1965Mehama, USdaily rain35.8 mm (1.4 in)2.8 mm (0.11 in)27 years14 of 100 (Routine)
15 October 1965Mehama, USdaily rain18.8 mm (0.7 in)0.8 mm (0.03 in)42 years16 of 100 (Routine)
13 August 1965Mehama, USdaily rain1.0 mm (0.04 in)1.0 mm (0.04 in)40 years17 of 100 (Routine)
12 August 1965Mehama, USdaily rain11.7 mm (0.5 in)8.7 mm (0.34 in)24 years20 of 100 (Routine)
9 August 1965Mehama, USdaily rain4.6 mm (0.18 in)2.8 mm (0.11 in)18 years13 of 100 (Routine)
21 July 1965Mehama, USdaily rain10.7 mm (0.4 in)3.6 mm (0.14 in)11 years13 of 100 (Routine)
20 April 1965Mehama, USdaily rain23.6 mm (0.9 in)1.0 mm (0.04 in)7 years7 of 100 (Routine)
28 January 1965Mehama, USdaily rain73.7 mm (2.9 in)0.5 mm (0.02 in)11 years7 of 100 (Routine)
23 December 1964Mehama, USdaily rain66.5 mm (2.6 in)27.1 mm (1.1 in)28 years32 of 100 (Routine)
22 December 1964Mehama, USmonthly rain80.8 mm (3.2 in)4.9 mm (0.19 in)7 years19 of 100 (Routine)
21 December 1964Mehama, USdaily rain52.1 mm (2.1 in)10.7 mm (0.4 in)9 years14 of 100 (Routine)
1 December 1964Mehama, USdaily rain34.3 mm (1.4 in)3.6 mm (0.14 in)13 years9 of 100 (Routine)
17 September 1964Mehama, USdaily rain18.0 mm (0.7 in)2.0 mm (0.08 in)38 years16 of 100 (Routine)
1 August 1964Mehama, USdaily rain11.9 mm (0.5 in)11.9 mm (0.5 in)40 years20 of 100 (Routine)

Extremes by Year

1923 to 1966
Yearly extremes at Mehama: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)104.6 mm (4.1 in)194967.4 mm (2.7 in)44
Wettest five days (Rx5day)251.5 mm (9.9 in)1964159.2 mm (6.3 in)44
Longest dry spell (CDD)72 days194435 days44

Wettest day (Rx1day)

Wettest day (Rx1day) at Mehama by year The wettest day of the year at Mehama, 1923 to 1966. The record is 104.6 mm (4.1 in) in 1949, marked on the chart; the median year is 67.4 mm (2.7 in). 204060801001201930194019501960Record: 104.6 mm (4.1 in) in 1949
The wettest day of the year at Mehama, 1923 to 1966. The record is 104.6 mm (4.1 in) in 1949, marked on the chart; the median year is 67.4 mm (2.7 in).
Wettest day (Rx1day) at Mehama by year
YearWettest day (Rx1day)
192354.6 mm (2.1 in)
192453.6 mm (2.1 in)
192567.3 mm (2.6 in)
192676.2 mm (3.0 in)
192771.6 mm (2.8 in)
192868.6 mm (2.7 in)
192959.7 mm (2.4 in)
193044.2 mm (1.7 in)
193169.9 mm (2.8 in)
193240.6 mm (1.6 in)
193381.3 mm (3.2 in)
193453.3 mm (2.1 in)
193556.1 mm (2.2 in)
193663.0 mm (2.5 in)
193770.6 mm (2.8 in)
193854.1 mm (2.1 in)
193947.8 mm (1.9 in)
194056.9 mm (2.2 in)
194168.3 mm (2.7 in)
194261.7 mm (2.4 in)
194375.7 mm (3.0 in)
194428.4 mm (1.1 in)
194557.4 mm (2.3 in)
194672.6 mm (2.9 in)
194780.8 mm (3.2 in)
194884.1 mm (3.3 in)
1949104.6 mm (4.1 in)
195067.6 mm (2.7 in)
195157.9 mm (2.3 in)
195254.6 mm (2.1 in)
195361.7 mm (2.4 in)
195473.2 mm (2.9 in)
195578.2 mm (3.1 in)
195665.3 mm (2.6 in)
195775.9 mm (3.0 in)
195868.1 mm (2.7 in)
195965.0 mm (2.6 in)
1960101.9 mm (4.0 in)
196196.5 mm (3.8 in)
196252.3 mm (2.1 in)
196365.0 mm (2.6 in)
196480.8 mm (3.2 in)
196573.7 mm (2.9 in)
196668.6 mm (2.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Mehama by year The wettest five days of the year at Mehama, 1923 to 1966. The record is 251.5 mm (9.9 in) in 1964, marked on the chart; the median year is 159.2 mm (6.3 in). 501001502002503001930194019501960Record: 251.5 mm (9.9 in) in 1964
The wettest five days of the year at Mehama, 1923 to 1966. The record is 251.5 mm (9.9 in) in 1964, marked on the chart; the median year is 159.2 mm (6.3 in).
Wettest five days (Rx5day) at Mehama by year
YearWettest five days (Rx5day)
1923110.4 mm (4.3 in)
1924201.2 mm (7.9 in)
1925111.3 mm (4.4 in)
1926137.0 mm (5.4 in)
1927144.2 mm (5.7 in)
1928144.3 mm (5.7 in)
1929223.0 mm (8.8 in)
193090.6 mm (3.6 in)
1931174.6 mm (6.9 in)
1932115.9 mm (4.6 in)
1933160.5 mm (6.3 in)
1934116.1 mm (4.6 in)
193589.9 mm (3.5 in)
1936163.6 mm (6.4 in)
1937207.0 mm (8.1 in)
1938182.9 mm (7.2 in)
1939100.6 mm (4.0 in)
1940136.6 mm (5.4 in)
1941149.8 mm (5.9 in)
1942181.1 mm (7.1 in)
1943146.5 mm (5.8 in)
194497.7 mm (3.8 in)
1945145.1 mm (5.7 in)
1946200.9 mm (7.9 in)
1947220.4 mm (8.7 in)
1948177.3 mm (7.0 in)
1949251.1 mm (9.9 in)
1950176.3 mm (6.9 in)
1951131.4 mm (5.2 in)
1952137.7 mm (5.4 in)
1953175.0 mm (6.9 in)
1954157.8 mm (6.2 in)
1955177.4 mm (7.0 in)
1956147.8 mm (5.8 in)
1957181.1 mm (7.1 in)
1958140.2 mm (5.5 in)
1959182.7 mm (7.2 in)
1960201.3 mm (7.9 in)
1961206.2 mm (8.1 in)
1962148.4 mm (5.8 in)
1963147.5 mm (5.8 in)
1964251.5 mm (9.9 in)
1965170.2 mm (6.7 in)
1966201.6 mm (7.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Mehama by year The longest dry spell of the year at Mehama, 1923 to 1966. The record is 72 days in 1944, marked on the chart; the median year is 35 days. 0204060801930194019501960Record: 72 days in 1944
The longest dry spell of the year at Mehama, 1923 to 1966. The record is 72 days in 1944, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Mehama by year
YearLongest dry spell (CDD)
19239 days
192433 days
192562 days
192657 days
192735 days
192856 days
192935 days
193071 days
193170 days
193226 days
193339 days
193433 days
193520 days
193651 days
193717 days
193843 days
193939 days
194041 days
194121 days
194235 days
194326 days
194472 days
194538 days
194645 days
194728 days
194820 days
194926 days
195032 days
195152 days
195255 days
195326 days
195424 days
195548 days
195642 days
195738 days
195858 days
195934 days
196055 days
196138 days
196230 days
196325 days
196414 days
196528 days
196618 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

31 years, 1924 to 1965

A day with at least 65.7 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 105.6 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Mehama: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years65.7 mm (2.6 in)
5 years79.8 mm (3.1 in)
10 years87.5 mm (3.4 in)
25 years95.8 mm (3.8 in)
50 years101.0 mm (4.0 in)Longer than the 31 years of record
100 years105.6 mm (4.2 in)Longer than the 31 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, 31 years of values from 1924 to 1965.

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: 104.6 mm (4.1 in) in 1949; 101.9 mm (4.0 in) in 1960; 96.5 mm (3.8 in) in 1961.

Download the Data

  • Data for Mehama standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Mehama 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.

Data as of . Last revised (2025-12-31).