Gerber Dam Weather Records (USC00353232)

Record envelope, standing records and threshold days for Gerber Dam (USC00353232), Oregon, United States, with 98 years of record.

Key Facts for Gerber Dam

Gerber Dam (USC00353232) is a weather station in Oregon, United States at 42.21 latitude and -121.13 longitude, 1,484 m (4,870 ft) above sea level.
The station reports from 1925 to 2022, 98 years of record.
1,464 records set at Gerber Dam still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Gerber Dam set a monthly record daily precipitation of 31.7 mm (1.2 in) on 29 May 2026.

About the Station

Location: Oregon, United States, 42.21 latitude, -121.13 longitude.
Elevation: 1,484 m (4,870 ft).
Period of record: 1925 to 2022, 98 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Gerber 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 Gerber Dam, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.0 C (59.0 F)	-36.1 C (-33.0 F)	n/a	n/a
Feb	18.9 C (66.0 F)	-34.4 C (-29.9 F)	n/a	n/a
Mar	21.7 C (71.1 F)	-25.6 C (-14.1 F)	n/a	n/a
Apr	26.7 C (80.1 F)	-10.6 C (12.9 F)	n/a	n/a
May	33.9 C (93.0 F)	-7.2 C (19.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	-3.9 C (25.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	-1.1 C (30.0 F)	n/a	n/a
Aug	38.3 C (100.9 F)	-1.7 C (28.9 F)	n/a	n/a
Sep	40.0 C (104.0 F)	-6.1 C (21.0 F)	n/a	n/a
Oct	32.2 C (90.0 F)	-12.2 C (10.0 F)	n/a	n/a
Nov	26.1 C (79.0 F)	-17.8 C (0.0 F)	n/a	n/a
Dec	17.2 C (63.0 F)	-30.0 C (-22.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Gerber Dam still stand. 1950 holds the most, with 137.

Standing records at Gerber Dam by the year they were set
Year set	Standing records
1943	2
1944	47
1945	67
1946	102
1947	93
1948	87
1949	119
1950	137
1951	84
1952	93
1953	76
1954	84
1955	103
1956	66
2017	2
2018	50
2019	59
2020	67
2021	80
2022	46

Wettest Day of Each Month

Aug: 59.4 mm (2.3 in)

The wettest day on record for each calendar month at Gerber Dam. The most was 59.4 mm (2.3 in) on 28 August 1934.

Record daily precipitation for each month at Gerber Dam
Month	Record daily precipitation (mm)	Date
Jan	23.9 mm (0.9 in)	7 January 1935
Feb	31.0 mm (1.2 in)	22 February 1956
Mar	31.8 mm (1.3 in)	23 March 1938
Apr	24.6 mm (1.0 in)	7 April 1935
May	31.7 mm (1.2 in)	29 May 2026
Jun	30.2 mm (1.2 in)	23 June 1952
Jul	25.9 mm (1.0 in)	11 July 1952
Aug	59.4 mm (2.3 in)	28 August 1934
Sep	27.4 mm (1.1 in)	12 September 1939
Oct	36.1 mm (1.4 in)	30 October 1945
Nov	33.0 mm (1.3 in)	9 November 1944
Dec	50.3 mm (2.0 in)	9 December 1939

Period of Record Coverage

1944 to 2022

19 years of record at Gerber Dam, 1944 to 2022. 5 years have data for under 90 percent of days and are left out of rankings: 1944, 1945, 1956, 2017, 2022.

Days with data per year at Gerber Dam
Year	Days with data	Share of year	Complete
1944	30	8%	No
1945	244	67%	No
1946	364	100%	Yes
1947	363	99%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	364	100%	Yes
1951	364	100%	Yes
1952	332	91%	Yes
1953	336	92%	Yes
1954	364	100%	Yes
1955	334	92%	Yes
1956	299	82%	No
2017	3	1%	No
2018	364	100%	Yes
2019	361	99%	Yes
2020	365	100%	Yes
2021	364	100%	Yes
2022	190	52%	No

Latest Records

Latest records at Gerber Dam
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 May 2026	Gerber Dam, US	monthly rain	31.7 mm (1.2 in)	4.5 mm (0.18 in)	100 years	58 of 100 (Notable)
28 May 2026	Gerber Dam, US	daily rain	26.8 mm (1.1 in)	13.1 mm (0.5 in)	93 years	63 of 100 (Major)
22 April 2026	Gerber Dam, US	daily rain	5.9 mm (0.23 in)	0.6 mm (0.02 in)	89 years	20 of 100 (Routine)
24 February 2026	Gerber Dam, US	daily rain	28.7 mm (1.1 in)	21.8 mm (0.9 in)	84 years	75 of 100 (Major)
1 January 2026	Gerber Dam, US	daily rain	12.6 mm (0.5 in)	3.2 mm (0.13 in)	72 years	20 of 100 (Routine)
15 July 2019	Gerber Dam, US	daily rain	0.8 mm (0.03 in)	0.5 mm (0.02 in)	80 years	20 of 100 (Routine)
9 April 2019	Gerber Dam, US	daily rain	20.3 mm (0.8 in)	9.9 mm (0.39 in)	81 years	20 of 100 (Routine)
7 March 2019	Gerber Dam, US	daily rain	8.6 mm (0.34 in)	2.0 mm (0.08 in)	72 years	20 of 100 (Routine)
14 February 2019	Gerber Dam, US	daily rain	15.0 mm (0.6 in)	5.9 mm (0.23 in)	81 years	20 of 100 (Routine)
10 January 2019	Gerber Dam, US	daily rain	6.6 mm (0.26 in)	1.0 mm (0.04 in)	68 years	20 of 100 (Routine)
17 December 2018	Gerber Dam, US	daily rain	11.9 mm (0.5 in)	5.5 mm (0.22 in)	68 years	20 of 100 (Routine)
28 November 2018	Gerber Dam, US	daily rain	21.1 mm (0.8 in)	5.6 mm (0.22 in)	91 years	20 of 100 (Routine)
6 October 2018	Gerber Dam, US	daily rain	2.8 mm (0.11 in)	0.5 mm (0.02 in)	68 years	20 of 100 (Routine)
4 October 2018	Gerber Dam, US	daily rain	12.2 mm (0.5 in)	3.3 mm (0.13 in)	69 years	20 of 100 (Routine)
16 July 2018	Gerber Dam, US	daily rain (Tie)	0.3 mm (0.01 in)	tie	76 years	7 of 100 (Routine)
24 May 2018	Gerber Dam, US	daily rain	9.7 mm (0.38 in)	7.7 mm (0.30 in)	72 years	20 of 100 (Routine)
6 April 2018	Gerber Dam, US	daily rain	10.9 mm (0.4 in)	4.5 mm (0.18 in)	80 years	20 of 100 (Routine)
22 March 2018	Gerber Dam, US	daily rain	25.1 mm (1.0 in)	15.4 mm (0.6 in)	68 years	61 of 100 (Major)
14 March 2018	Gerber Dam, US	daily rain	14.2 mm (0.6 in)	6.8 mm (0.27 in)	69 years	20 of 100 (Routine)
10 March 2018	Gerber Dam, US	daily rain	10.9 mm (0.4 in)	2.8 mm (0.11 in)	88 years	20 of 100 (Routine)

Climate Trend

11 complete years, 1946 to 2021

One stripe for each of 11 complete years at Gerber Dam, 1946 to 2021. Blue stripes are years cooler than the station's own mean of 7.9 C (46.3 F); red stripes are warmer. The coolest year was 1948, at 6.8 C (44.3 F), and the warmest was 1947, at 8.5 C (47.4 F). The strongest colour marks a difference of 1.2 C (2.2 F).

Annual mean temperature at Gerber Dam as warming stripes, 1946 to 2021
Year	Annual mean temperature	Difference from the station mean
1946	7.4 C	-0.49 C
1947	8.5 C	+0.61 C
1948	6.8 C	-1.12 C
1949	7.4 C	-0.50 C
1950	8.2 C	+0.29 C
1951	8.3 C	+0.32 C
1954	8.0 C	+0.06 C
2018	8.1 C	+0.12 C
2019	7.6 C	-0.30 C
2020	8.4 C	+0.49 C
2021	8.5 C	+0.54 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 2026

Yearly extremes at Gerber Dam: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1955	36.1 C (97.0 F)	19
Coldest night (TNn)	-36.1 C (-33.0 F)	1950	-21.6 C (-7.0 F)	20
Wettest day (Rx1day)	59.4 mm (2.3 in)	1934	25.8 mm (1.0 in)	36
Wettest five days (Rx5day)	81.8 mm (3.2 in)	1955	52.9 mm (2.1 in)	35
Longest dry spell (CDD)	112 days	1929	46 days	36

Hottest day (TXx)

The hottest day of the year at Gerber Dam, 1925 to 2026. The record is 40.0 C (104.0 F) in 1955, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Gerber 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	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	19.4 C (66.9 F)
1945	36.7 C (98.1 F)
1946	38.9 C (102.0 F)
1947	34.4 C (93.9 F)
1948	34.4 C (93.9 F)
1949	36.7 C (98.1 F)
1950	38.3 C (100.9 F)
1951	37.2 C (99.0 F)
1952	33.3 C (91.9 F)
1953	36.1 C (97.0 F)
1954	38.3 C (100.9 F)
1955	40.0 C (104.0 F)
1956	36.7 C (98.1 F)
2017	10.6 C (51.1 F)
2018	36.1 C (97.0 F)
2019	34.4 C (93.9 F)
2020	35.6 C (96.1 F)
2021	38.3 C (100.9 F)
2022	33.3 C (91.9 F)
2026	n/a

Coldest night (TNn)

The coldest night of the year at Gerber Dam, 1925 to 2026. The record is -36.1 C (-33.0 F) in 1950, marked on the chart; the median year is -21.6 C (-7.0 F).

Coldest night (TNn) at Gerber 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	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	-13.9 C (7.0 F)
1944	-15.6 C (3.9 F)
1945	-19.4 C (-2.9 F)
1946	-25.0 C (-13.0 F)
1947	-23.9 C (-11.0 F)
1948	-30.0 C (-22.0 F)
1949	-35.0 C (-31.0 F)
1950	-36.1 C (-33.0 F)
1951	-25.6 C (-14.1 F)
1952	-25.6 C (-14.1 F)
1953	-15.0 C (5.0 F)
1954	-27.2 C (-17.0 F)
1955	-27.8 C (-18.0 F)
1956	-27.8 C (-18.0 F)
2017	-7.2 C (19.0 F)
2018	-17.2 C (1.0 F)
2019	-17.8 C (0.0 F)
2020	-16.1 C (3.0 F)
2021	-17.8 C (0.0 F)
2022	-16.1 C (3.0 F)
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Gerber Dam, 1925 to 2026. The record is 59.4 mm (2.3 in) in 1934, marked on the chart; the median year is 25.8 mm (1.0 in).

Wettest day (Rx1day) at Gerber Dam by year
Year	Wettest day (Rx1day)
1925	19.6 mm (0.8 in)
1926	32.5 mm (1.3 in)
1927	24.1 mm (0.9 in)
1928	20.3 mm (0.8 in)
1929	27.2 mm (1.1 in)
1930	16.5 mm (0.6 in)
1931	24.9 mm (1.0 in)
1932	20.8 mm (0.8 in)
1933	25.9 mm (1.0 in)
1934	59.4 mm (2.3 in)
1935	24.6 mm (1.0 in)
1936	23.4 mm (0.9 in)
1937	49.8 mm (2.0 in)
1938	31.8 mm (1.3 in)
1939	50.3 mm (2.0 in)
1940	26.9 mm (1.1 in)
1941	26.2 mm (1.0 in)
1942	30.5 mm (1.2 in)
1943	22.9 mm (0.9 in)
1944	33.0 mm (1.3 in)
1945	36.1 mm (1.4 in)
1946	29.2 mm (1.1 in)
1947	24.4 mm (1.0 in)
1948	37.3 mm (1.5 in)
1949	20.1 mm (0.8 in)
1950	22.1 mm (0.9 in)
1951	24.6 mm (1.0 in)
1952	30.2 mm (1.2 in)
1953	28.2 mm (1.1 in)
1954	22.6 mm (0.9 in)
1955	25.7 mm (1.0 in)
1956	31.0 mm (1.2 in)
2017	0.5 mm (0.02 in)
2018	25.1 mm (1.0 in)
2019	20.3 mm (0.8 in)
2020	n/a
2021	n/a
2022	n/a
2026	31.7 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Gerber Dam, 1925 to 2026. The record is 81.8 mm (3.2 in) in 1955, marked on the chart; the median year is 52.9 mm (2.1 in).

Wettest five days (Rx5day) at Gerber Dam by year
Year	Wettest five days (Rx5day)
1925	37.4 mm (1.5 in)
1926	58.9 mm (2.3 in)
1927	46.9 mm (1.8 in)
1928	48.7 mm (1.9 in)
1929	47.6 mm (1.9 in)
1930	32.1 mm (1.3 in)
1931	51.5 mm (2.0 in)
1932	53.6 mm (2.1 in)
1933	52.3 mm (2.1 in)
1934	59.4 mm (2.3 in)
1935	31.9 mm (1.3 in)
1936	59.4 mm (2.3 in)
1937	71.3 mm (2.8 in)
1938	60.2 mm (2.4 in)
1939	77.5 mm (3.1 in)
1940	65.7 mm (2.6 in)
1941	56.1 mm (2.2 in)
1942	64.1 mm (2.5 in)
1943	59.8 mm (2.4 in)
1944	52.5 mm (2.1 in)
1945	52.9 mm (2.1 in)
1946	50.5 mm (2.0 in)
1947	40.4 mm (1.6 in)
1948	66.4 mm (2.6 in)
1949	46.5 mm (1.8 in)
1950	65.3 mm (2.6 in)
1951	48.9 mm (1.9 in)
1952	47.2 mm (1.9 in)
1953	58.4 mm (2.3 in)
1954	40.6 mm (1.6 in)
1955	81.8 mm (3.2 in)
1956	62.1 mm (2.4 in)
2017	n/a
2018	45.8 mm (1.8 in)
2019	27.3 mm (1.1 in)
2020	n/a
2021	n/a
2022	n/a
2026	67.7 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Gerber Dam, 1925 to 2026. The record is 112 days in 1929, marked on the chart; the median year is 46 days.

Longest dry spell (CDD) at Gerber Dam by year
Year	Longest dry spell (CDD)
1925	15 days
1926	53 days
1927	34 days
1928	39 days
1929	112 days
1930	28 days
1931	80 days
1932	79 days
1933	32 days
1934	62 days
1935	50 days
1936	91 days
1937	36 days
1938	67 days
1939	45 days
1940	53 days
1941	30 days
1942	33 days
1943	34 days
1944	52 days
1945	70 days
1946	41 days
1947	41 days
1948	27 days
1949	80 days
1950	47 days
1951	86 days
1952	39 days
1953	51 days
1954	49 days
1955	36 days
1956	75 days
2017	3 days
2018	63 days
2019	24 days
2020	n/a
2021	n/a
2022	n/a
2026	38 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, 1926 to 2018

A day with at least 26.2 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 69.4 mm (2.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Gerber Dam: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	26.2 mm (1.0 in)
5 years	33.4 mm (1.3 in)
10 years	39.5 mm (1.6 in)
25 years	49.3 mm (1.9 in)
50 years	58.4 mm (2.3 in)	Longer than the 31 years of record
100 years	69.4 mm (2.7 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 1926 to 2018.

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: 59.4 mm (2.3 in) in 1934; 50.3 mm (2.0 in) in 1939; 49.8 mm (2.0 in) in 1937.

Download the Data

Data for Gerber Dam standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Gerber 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).