Gem Lake Weather Records (USC00043369)

Record envelope, standing records and threshold days for Gem Lake (USC00043369), California, United States, with 87 years of record.

Key Facts for Gem Lake

Gem Lake (USC00043369) is a weather station in California, United States at 37.75 latitude and -119.14 longitude, 2,734 m (8,970 ft) above sea level.
The station reports from 1924 to 2010, 87 years of record.
1,464 records set at Gem Lake still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Gem Lake set a daily record precipitation of 8.6 mm (0.34 in) on 3 September 2004.

About the Station

Location: California, United States, 37.75 latitude, -119.14 longitude.
Elevation: 2,734 m (8,970 ft).
Period of record: 1924 to 2010, 87 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 Gem Lake. 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 Gem Lake, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	19.4 C (66.9 F)	-28.9 C (-20.0 F)	n/a	n/a
Feb	21.1 C (70.0 F)	-26.7 C (-16.1 F)	n/a	n/a
Mar	21.7 C (71.1 F)	-24.4 C (-11.9 F)	n/a	n/a
Apr	23.9 C (75.0 F)	-18.9 C (-2.0 F)	n/a	n/a
May	26.7 C (80.1 F)	-15.0 C (5.0 F)	n/a	n/a
Jun	31.7 C (89.1 F)	-8.9 C (16.0 F)	n/a	n/a
Jul	35.6 C (96.1 F)	-5.6 C (21.9 F)	n/a	n/a
Aug	31.7 C (89.1 F)	-7.8 C (18.0 F)	n/a	n/a
Sep	27.8 C (82.0 F)	-10.0 C (14.0 F)	n/a	n/a
Oct	23.3 C (73.9 F)	-14.4 C (6.1 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-19.4 C (-2.9 F)	n/a	n/a
Dec	17.8 C (64.0 F)	-26.1 C (-15.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Gem Lake still stand. 1933 holds the most, with 140.

Standing records at Gem Lake by the year they were set
Year set	Standing records
1924	11
1925	106
1926	40
1927	78
1928	98
1929	66
1930	36
1931	34
1932	51
1933	140
1934	48
1935	26
1936	21
1937	72
1938	40
1939	65
1940	46
1941	49
1942	50
1943	36
1944	54
1945	45
1946	95
1947	46
1948	32
1949	41
1950	38

All-Time Record Progression

1 new records

1 all-time records were set at Gem Lake between 11 April 1982 and 11 April 1982. Each dot is a new record.

Wettest Day of Each Month

Apr: 157.0 mm (6.2 in)

The wettest day on record for each calendar month at Gem Lake. The most was 157.0 mm (6.2 in) on 11 April 1982.

Record daily precipitation for each month at Gem Lake
Month	Record daily precipitation (mm)	Date
Jan	85.3 mm (3.4 in)	4 January 1982
Feb	81.8 mm (3.2 in)	12 February 1926
Mar	58.9 mm (2.3 in)	10 March 1995
Apr	157.0 mm (6.2 in)	11 April 1982
May	77.7 mm (3.1 in)	13 May 1945
Jun	28.7 mm (1.1 in)	5 June 1948
Jul	42.7 mm (1.7 in)	28 July 1976
Aug	30.0 mm (1.2 in)	11 August 1935
Sep	42.2 mm (1.7 in)	18 September 1959
Oct	51.8 mm (2.0 in)	30 October 1945
Nov	73.2 mm (2.9 in)	22 November 1965
Dec	88.4 mm (3.5 in)	27 December 1940

Period of Record Coverage

1924 to 1950

27 years of record at Gem Lake, 1924 to 1950. 7 years have data for under 90 percent of days and are left out of rankings: 1924, 1933, 1945, 1947, 1948, 1949, 1950.

Days with data per year at Gem Lake
Year	Days with data	Share of year	Complete
1924	47	13%	No
1925	365	100%	Yes
1926	363	99%	Yes
1927	365	100%	Yes
1928	363	99%	Yes
1929	361	99%	Yes
1930	362	99%	Yes
1931	365	100%	Yes
1932	361	99%	Yes
1933	300	82%	No
1934	365	100%	Yes
1935	364	100%	Yes
1936	364	99%	Yes
1937	361	99%	Yes
1938	355	97%	Yes
1939	363	99%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	333	91%	Yes
1943	335	92%	Yes
1944	365	100%	Yes
1945	296	81%	No
1946	351	96%	Yes
1947	239	65%	No
1948	252	69%	No
1949	254	70%	No
1950	241	66%	No

Latest Records

Latest records at Gem Lake
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 September 2004	Gem Lake, US	daily rain	8.6 mm (0.34 in)	3.0 mm (0.12 in)	37 years	20 of 100 (Routine)
22 August 2004	Gem Lake, US	daily rain	6.4 mm (0.25 in)	0.3 mm (0.01 in)	55 years	20 of 100 (Routine)
22 July 2004	Gem Lake, US	daily rain	3.8 mm (0.15 in)	1.3 mm (0.05 in)	48 years	20 of 100 (Routine)
2 July 2004	Gem Lake, US	daily rain (Tie)	6.4 mm (0.25 in)	tie	69 years	7 of 100 (Routine)
28 May 2004	Gem Lake, US	daily rain	14.5 mm (0.6 in)	6.4 mm (0.25 in)	12 years	20 of 100 (Routine)
7 August 2003	Gem Lake, US	daily rain (Tie)	2.5 mm (0.10 in)	tie	38 years	4 of 100 (Routine)
8 November 2002	Gem Lake, US	daily rain	27.9 mm (1.1 in)	13.4 mm (0.5 in)	56 years	37 of 100 (Notable)
7 November 2002	Gem Lake, US	daily rain	8.9 mm (0.35 in)	3.8 mm (0.15 in)	17 years	15 of 100 (Routine)
7 July 2001	Gem Lake, US	daily rain	9.7 mm (0.38 in)	7.7 mm (0.30 in)	64 years	20 of 100 (Routine)
4 July 2001	Gem Lake, US	daily rain	4.3 mm (0.17 in)	0.2 mm (0.01 in)	40 years	19 of 100 (Routine)
3 July 2001	Gem Lake, US	daily rain (Tie)	3.0 mm (0.12 in)	tie	40 years	4 of 100 (Routine)
28 April 2001	Gem Lake, US	daily rain	30.0 mm (1.2 in)	11.2 mm (0.4 in)	58 years	36 of 100 (Notable)
5 March 2001	Gem Lake, US	daily rain	33.0 mm (1.3 in)	0.5 mm (0.02 in)	71 years	28 of 100 (Routine)
26 August 2000	Gem Lake, US	daily rain	19.8 mm (0.8 in)	14.2 mm (0.6 in)	66 years	20 of 100 (Routine)
24 June 2000	Gem Lake, US	daily rain	4.8 mm (0.19 in)	0.7 mm (0.03 in)	25 years	15 of 100 (Routine)
16 April 2000	Gem Lake, US	daily rain	18.3 mm (0.7 in)	6.1 mm (0.24 in)	73 years	20 of 100 (Routine)
26 February 2000	Gem Lake, US	daily rain	20.3 mm (0.8 in)	2.0 mm (0.08 in)	6 years	10 of 100 (Routine)
7 February 1999	Gem Lake, US	daily rain	40.9 mm (1.6 in)	16.5 mm (0.6 in)	39 years	32 of 100 (Routine)
11 June 1998	Gem Lake, US	daily rain	4.3 mm (0.17 in)	0.7 mm (0.03 in)	20 years	14 of 100 (Routine)
7 June 1998	Gem Lake, US	daily rain	8.6 mm (0.34 in)	0.5 mm (0.02 in)	71 years	20 of 100 (Routine)

Climate Trend

18 complete years, 1925 to 1946

One stripe for each of 18 complete years at Gem Lake, 1925 to 1946. Blue stripes are years cooler than the station's own mean of 5.3 C (41.6 F); red stripes are warmer. The coolest year was 1925, at 2.9 C (37.2 F), and the warmest was 1927, at 7.2 C (44.9 F). The strongest colour marks a difference of 2.5 C (4.5 F).

Annual mean temperature at Gem Lake as warming stripes, 1925 to 1946
Year	Annual mean temperature	Difference from the station mean
1925	2.9 C	-2.47 C
1926	4.7 C	-0.64 C
1927	7.2 C	+1.82 C
1928	6.8 C	+1.42 C
1929	7.1 C	+1.78 C
1930	5.6 C	+0.28 C
1931	6.4 C	+1.02 C
1932	5.5 C	+0.14 C
1934	6.4 C	+1.04 C
1935	4.2 C	-1.15 C
1936	5.8 C	+0.41 C
1937	5.4 C	+0.06 C
1938	4.4 C	-0.92 C
1939	6.0 C	+0.62 C
1940	5.6 C	+0.26 C
1941	3.9 C	-1.40 C
1944	3.8 C	-1.51 C
1946	4.6 C	-0.77 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

1924 to 2010

Yearly extremes at Gem Lake: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.6 C (96.1 F)	1933	28.9 C (84.0 F)	27
Coldest night (TNn)	-28.9 C (-20.0 F)	1937	-23.3 C (-9.9 F)	27
Wettest day (Rx1day)	157.0 mm (6.2 in)	1982	40.9 mm (1.6 in)	79
Wettest five days (Rx5day)	200.5 mm (7.9 in)	1940	84.3 mm (3.3 in)	79
Longest dry spell (CDD)	144 days	1944	45 days	79

Hottest day (TXx)

The hottest day of the year at Gem Lake, 1924 to 2010. The record is 35.6 C (96.1 F) in 1933, marked on the chart; the median year is 28.9 C (84.0 F).

Hottest day (TXx) at Gem Lake by year
Year	Hottest day (TXx)
1924	15.0 C (59.0 F)
1925	31.7 C (89.1 F)
1926	29.4 C (84.9 F)
1927	30.0 C (86.0 F)
1928	28.9 C (84.0 F)
1929	30.0 C (86.0 F)
1930	29.4 C (84.9 F)
1931	32.8 C (91.0 F)
1932	29.4 C (84.9 F)
1933	35.6 C (96.1 F)
1934	27.8 C (82.0 F)
1935	26.7 C (80.1 F)
1936	28.9 C (84.0 F)
1937	31.1 C (88.0 F)
1938	28.9 C (84.0 F)
1939	27.8 C (82.0 F)
1940	27.8 C (82.0 F)
1941	31.1 C (88.0 F)
1942	27.8 C (82.0 F)
1943	26.7 C (80.1 F)
1944	28.9 C (84.0 F)
1945	26.7 C (80.1 F)
1946	31.7 C (89.1 F)
1947	21.1 C (70.0 F)
1948	24.4 C (75.9 F)
1949	24.4 C (75.9 F)
1950	26.1 C (79.0 F)
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2009	n/a
2010	n/a

Coldest night (TNn)

The coldest night of the year at Gem Lake, 1924 to 2010. The record is -28.9 C (-20.0 F) in 1937, marked on the chart; the median year is -23.3 C (-9.9 F).

Coldest night (TNn) at Gem Lake by year
Year	Coldest night (TNn)
1924	-25.6 C (-14.1 F)
1925	-17.8 C (0.0 F)
1926	-22.2 C (-8.0 F)
1927	-20.0 C (-4.0 F)
1928	-19.4 C (-2.9 F)
1929	-26.7 C (-16.1 F)
1930	-21.7 C (-7.1 F)
1931	-17.2 C (1.0 F)
1932	-26.1 C (-15.0 F)
1933	-17.8 C (0.0 F)
1934	-17.8 C (0.0 F)
1935	-23.3 C (-9.9 F)
1936	-19.4 C (-2.9 F)
1937	-28.9 C (-20.0 F)
1938	-20.0 C (-4.0 F)
1939	-24.4 C (-11.9 F)
1940	-19.4 C (-2.9 F)
1941	-21.1 C (-6.0 F)
1942	-23.3 C (-9.9 F)
1943	-18.9 C (-2.0 F)
1944	-23.3 C (-9.9 F)
1945	-24.4 C (-11.9 F)
1946	-23.3 C (-9.9 F)
1947	-27.8 C (-18.0 F)
1948	-25.6 C (-14.1 F)
1949	-27.8 C (-18.0 F)
1950	-25.0 C (-13.0 F)
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2009	n/a
2010	n/a

Wettest day (Rx1day)

The wettest day of the year at Gem Lake, 1924 to 2010. The record is 157.0 mm (6.2 in) in 1982, marked on the chart; the median year is 40.9 mm (1.6 in).

Wettest day (Rx1day) at Gem Lake by year
Year	Wettest day (Rx1day)
1924	36.8 mm (1.4 in)
1925	69.6 mm (2.7 in)
1926	81.8 mm (3.2 in)
1927	41.1 mm (1.6 in)
1928	38.6 mm (1.5 in)
1929	54.6 mm (2.1 in)
1930	43.9 mm (1.7 in)
1931	31.0 mm (1.2 in)
1932	44.5 mm (1.8 in)
1933	37.3 mm (1.5 in)
1934	30.5 mm (1.2 in)
1935	40.6 mm (1.6 in)
1936	66.0 mm (2.6 in)
1937	57.9 mm (2.3 in)
1938	69.1 mm (2.7 in)
1939	25.9 mm (1.0 in)
1940	88.4 mm (3.5 in)
1941	47.8 mm (1.9 in)
1942	40.6 mm (1.6 in)
1943	57.2 mm (2.3 in)
1944	52.1 mm (2.1 in)
1945	77.7 mm (3.1 in)
1946	52.8 mm (2.1 in)
1947	11.7 mm (0.5 in)
1948	34.8 mm (1.4 in)
1949	24.1 mm (0.9 in)
1950	26.2 mm (1.0 in)
1955	66.0 mm (2.6 in)
1956	35.6 mm (1.4 in)
1957	50.8 mm (2.0 in)
1958	22.9 mm (0.9 in)
1959	43.7 mm (1.7 in)
1960	31.0 mm (1.2 in)
1961	28.4 mm (1.1 in)
1962	28.4 mm (1.1 in)
1963	52.1 mm (2.1 in)
1964	44.2 mm (1.7 in)
1965	73.2 mm (2.9 in)
1966	44.2 mm (1.7 in)
1967	42.2 mm (1.7 in)
1968	40.1 mm (1.6 in)
1969	57.4 mm (2.3 in)
1970	41.7 mm (1.6 in)
1971	47.8 mm (1.9 in)
1972	38.1 mm (1.5 in)
1973	50.3 mm (2.0 in)
1974	38.1 mm (1.5 in)
1975	29.0 mm (1.1 in)
1976	42.7 mm (1.7 in)
1977	25.4 mm (1.0 in)
1978	31.0 mm (1.2 in)
1979	50.8 mm (2.0 in)
1980	39.1 mm (1.5 in)
1981	43.7 mm (1.7 in)
1982	157.0 mm (6.2 in)
1983	55.9 mm (2.2 in)
1984	38.1 mm (1.5 in)
1985	41.1 mm (1.6 in)
1986	74.7 mm (2.9 in)
1987	15.7 mm (0.6 in)
1988	16.3 mm (0.6 in)
1989	23.4 mm (0.9 in)
1990	46.2 mm (1.8 in)
1991	37.6 mm (1.5 in)
1992	53.3 mm (2.1 in)
1993	30.0 mm (1.2 in)
1994	42.2 mm (1.7 in)
1995	58.9 mm (2.3 in)
1996	45.0 mm (1.8 in)
1997	38.4 mm (1.5 in)
1998	40.9 mm (1.6 in)
1999	40.9 mm (1.6 in)
2000	21.1 mm (0.8 in)
2001	37.3 mm (1.5 in)
2002	31.8 mm (1.3 in)
2003	19.8 mm (0.8 in)
2004	14.5 mm (0.6 in)
2009	0.0 mm (0.00 in)
2010	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Gem Lake, 1924 to 2010. The record is 200.5 mm (7.9 in) in 1940, marked on the chart; the median year is 84.3 mm (3.3 in).

Wettest five days (Rx5day) at Gem Lake by year
Year	Wettest five days (Rx5day)
1924	3.0 mm (0.12 in)
1925	90.2 mm (3.6 in)
1926	135.4 mm (5.3 in)
1927	89.2 mm (3.5 in)
1928	72.9 mm (2.9 in)
1929	101.2 mm (4.0 in)
1930	75.7 mm (3.0 in)
1931	66.1 mm (2.6 in)
1932	128.4 mm (5.1 in)
1933	105.6 mm (4.2 in)
1934	50.1 mm (2.0 in)
1935	102.1 mm (4.0 in)
1936	115.5 mm (4.5 in)
1937	118.4 mm (4.7 in)
1938	135.4 mm (5.3 in)
1939	42.4 mm (1.7 in)
1940	200.5 mm (7.9 in)
1941	94.7 mm (3.7 in)
1942	85.8 mm (3.4 in)
1943	170.7 mm (6.7 in)
1944	98.4 mm (3.9 in)
1945	130.9 mm (5.2 in)
1946	84.3 mm (3.3 in)
1947	15.5 mm (0.6 in)
1948	52.8 mm (2.1 in)
1949	58.3 mm (2.3 in)
1950	40.2 mm (1.6 in)
1955	195.5 mm (7.7 in)
1956	48.3 mm (1.9 in)
1957	58.3 mm (2.3 in)
1958	54.6 mm (2.1 in)
1959	88.4 mm (3.5 in)
1960	56.3 mm (2.2 in)
1961	55.8 mm (2.2 in)
1962	38.5 mm (1.5 in)
1963	152.4 mm (6.0 in)
1964	110.2 mm (4.3 in)
1965	158.9 mm (6.3 in)
1966	97.0 mm (3.8 in)
1967	107.7 mm (4.2 in)
1968	51.3 mm (2.0 in)
1969	162.0 mm (6.4 in)
1970	130.5 mm (5.1 in)
1971	133.6 mm (5.3 in)
1972	49.8 mm (2.0 in)
1973	77.2 mm (3.0 in)
1974	71.9 mm (2.8 in)
1975	82.0 mm (3.2 in)
1976	62.5 mm (2.5 in)
1977	39.6 mm (1.6 in)
1978	77.0 mm (3.0 in)
1979	77.2 mm (3.0 in)
1980	86.9 mm (3.4 in)
1981	94.5 mm (3.7 in)
1982	180.2 mm (7.1 in)
1983	199.7 mm (7.9 in)
1984	45.7 mm (1.8 in)
1985	76.6 mm (3.0 in)
1986	187.6 mm (7.4 in)
1987	38.5 mm (1.5 in)
1988	44.2 mm (1.7 in)
1989	50.8 mm (2.0 in)
1990	102.5 mm (4.0 in)
1991	111.5 mm (4.4 in)
1992	91.4 mm (3.6 in)
1993	113.6 mm (4.5 in)
1994	55.1 mm (2.2 in)
1995	136.7 mm (5.4 in)
1996	83.3 mm (3.3 in)
1997	75.2 mm (3.0 in)
1998	104.9 mm (4.1 in)
1999	103.2 mm (4.1 in)
2000	51.6 mm (2.0 in)
2001	93.2 mm (3.7 in)
2002	58.5 mm (2.3 in)
2003	31.3 mm (1.2 in)
2004	17.8 mm (0.7 in)
2009	0.0 mm (0.00 in)
2010	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Gem Lake, 1924 to 2010. The record is 144 days in 1944, marked on the chart; the median year is 45 days.

Longest dry spell (CDD) at Gem Lake by year
Year	Longest dry spell (CDD)
1924	16 days
1925	25 days
1926	80 days
1927	43 days
1928	44 days
1929	62 days
1930	84 days
1931	58 days
1932	113 days
1933	72 days
1934	51 days
1935	34 days
1936	32 days
1937	81 days
1938	35 days
1939	38 days
1940	63 days
1941	40 days
1942	75 days
1943	56 days
1944	144 days
1945	33 days
1946	58 days
1947	95 days
1948	31 days
1949	64 days
1950	62 days
1955	47 days
1956	53 days
1957	110 days
1958	36 days
1959	91 days
1960	59 days
1961	25 days
1962	39 days
1963	45 days
1964	56 days
1965	28 days
1966	29 days
1967	26 days
1968	50 days
1969	58 days
1970	61 days
1971	33 days
1972	38 days
1973	42 days
1974	56 days
1975	27 days
1976	67 days
1977	43 days
1978	46 days
1979	34 days
1980	22 days
1981	45 days
1982	37 days
1983	55 days
1984	23 days
1985	35 days
1986	56 days
1987	77 days
1988	51 days
1989	41 days
1990	35 days
1991	45 days
1992	25 days
1993	45 days
1994	62 days
1995	95 days
1996	33 days
1997	40 days
1998	43 days
1999	31 days
2000	62 days
2001	19 days
2002	23 days
2003	57 days
2004	27 days
2009	30 days
2010	61 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

61 years, 1926 to 2003

A day with at least 40.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 111.4 mm (4.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Gem Lake: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.7 mm (1.6 in)
5 years	57.8 mm (2.3 in)
10 years	69.7 mm (2.7 in)
25 years	85.8 mm (3.4 in)
50 years	98.3 mm (3.9 in)
100 years	111.4 mm (4.4 in)	Longer than the 61 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, 61 years of values from 1926 to 2003.

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: 157.0 mm (6.2 in) in 1982; 88.4 mm (3.5 in) in 1940; 81.8 mm (3.2 in) in 1926.

Download the Data

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