Milner Dam Weather Records (USC00105955)

Record envelope, standing records and threshold days for Milner Dam (USC00105955), Idaho, United States, with 43 years of record.

Key Facts for Milner Dam

Milner Dam (USC00105955) is a weather station in Idaho, United States at 42.53 latitude and -114.12 longitude, 1,281 m (4,203 ft) above sea level.
The station reports from 1904 to 1946, 43 years of record.
1,464 records set at Milner Dam still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Idaho, United States, 42.53 latitude, -114.12 longitude.
Elevation: 1,281 m (4,203 ft).
Period of record: 1904 to 1946, 43 years.
Eligible elements: none yet.

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 Milner 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 Milner Dam, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	13.9 C (57.0 F)	-34.4 C (-29.9 F)	n/a	n/a
Feb	20.6 C (69.1 F)	-33.3 C (-27.9 F)	n/a	n/a
Mar	24.4 C (75.9 F)	-19.4 C (-2.9 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-15.0 C (5.0 F)	n/a	n/a
May	36.7 C (98.1 F)	-5.6 C (21.9 F)	n/a	n/a
Jun	40.6 C (105.1 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	44.4 C (111.9 F)	0.6 C (33.1 F)	n/a	n/a
Aug	41.1 C (106.0 F)	0.0 C (32.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	-7.2 C (19.0 F)	n/a	n/a
Oct	31.7 C (89.1 F)	-11.7 C (10.9 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-19.4 C (-2.9 F)	n/a	n/a
Dec	22.2 C (72.0 F)	-30.0 C (-22.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Milner Dam still stand. 1933 holds the most, with 72.

Standing records at Milner Dam by the year they were set
Year set	Standing records
1904	65
1905	56
1906	61
1907	55
1908	54
1909	68
1910	46
1911	58
1912	50
1913	39
1914	47
1915	5
1927	35
1928	33
1929	40
1930	60
1931	43
1932	65
1933	72
1934	69
1935	36
1936	60
1937	45
1938	46
1939	48
1940	62
1941	27
1942	50
1943	38
1944	3
1945	17
1946	11

Wettest Day of Each Month

Jan: 38.6 mm (1.5 in)

The wettest day on record for each calendar month at Milner Dam. The most was 38.6 mm (1.5 in) on 15 January 1936.

Record daily precipitation for each month at Milner Dam
Month	Record daily precipitation (mm)	Date
Jan	38.6 mm (1.5 in)	15 January 1936
Feb	29.2 mm (1.1 in)	1 February 1907
Mar	29.7 mm (1.2 in)	21 March 1946
Apr	20.3 mm (0.8 in)	6 April 1907
May	36.8 mm (1.4 in)	15 May 1911
Jun	22.6 mm (0.9 in)	5 June 1906
Jul	22.9 mm (0.9 in)	20 July 1913
Aug	21.8 mm (0.9 in)	13 August 1930
Sep	20.3 mm (0.8 in)	12 September 1911
Oct	25.4 mm (1.0 in)	3 October 1908
Nov	33.8 mm (1.3 in)	20 November 1909
Dec	27.9 mm (1.1 in)	4 December 1906

Period of Record Coverage

1904 to 1946

32 years of record at Milner Dam, 1904 to 1946. 7 years have data for under 90 percent of days and are left out of rankings: 1905, 1915, 1927, 1943, 1944, 1945, 1946.

Days with data per year at Milner Dam
Year	Days with data	Share of year	Complete
1904	333	91%	Yes
1905	321	88%	No
1906	356	98%	Yes
1907	345	95%	Yes
1908	360	98%	Yes
1909	344	94%	Yes
1910	357	98%	Yes
1911	360	99%	Yes
1912	365	100%	Yes
1913	329	90%	Yes
1914	356	98%	Yes
1915	114	31%	No
1927	261	72%	No
1928	359	98%	Yes
1929	344	94%	Yes
1930	361	99%	Yes
1931	333	91%	Yes
1932	358	98%	Yes
1933	365	100%	Yes
1934	365	100%	Yes
1935	364	100%	Yes
1936	365	100%	Yes
1937	365	100%	Yes
1938	365	100%	Yes
1939	364	100%	Yes
1940	365	100%	Yes
1941	362	99%	Yes
1942	364	100%	Yes
1943	276	76%	No
1944	60	16%	No
1945	74	20%	No
1946	71	19%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

19 complete years, 1906 to 1942

One stripe for each of 19 complete years at Milner Dam, 1906 to 1942. Blue stripes are years cooler than the station's own mean of 9.3 C (48.7 F); red stripes are warmer. The coolest year was 1911, at 7.9 C (46.3 F), and the warmest was 1934, at 11.8 C (53.3 F). The strongest colour marks a difference of 2.6 C (4.7 F).

Annual mean temperature at Milner Dam as warming stripes, 1906 to 1942
Year	Annual mean temperature	Difference from the station mean
1906	8.9 C	-0.41 C
1907	9.1 C	-0.21 C
1908	8.5 C	-0.74 C
1910	9.7 C	+0.45 C
1911	7.9 C	-1.33 C
1912	8.1 C	-1.21 C
1914	9.1 C	-0.15 C
1929	8.3 C	-0.95 C
1930	9.0 C	-0.30 C
1932	8.1 C	-1.21 C
1933	9.2 C	-0.03 C
1934	11.8 C	+2.57 C
1935	8.9 C	-0.41 C
1936	9.3 C	+0.07 C
1937	8.8 C	-0.43 C
1938	10.3 C	+1.05 C
1939	10.6 C	+1.31 C
1940	11.4 C	+2.16 C
1942	9.0 C	-0.25 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

1904 to 1946

Yearly extremes at Milner Dam: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.4 C (111.9 F)	1945	39.4 C (102.9 F)	32
Coldest night (TNn)	-34.4 C (-29.9 F)	1937	-23.0 C (-9.5 F)	32
Wettest day (Rx1day)	38.6 mm (1.5 in)	1936	19.8 mm (0.8 in)	32
Wettest five days (Rx5day)	75.7 mm (3.0 in)	1908	29.9 mm (1.2 in)	32
Longest dry spell (CDD)	109 days	1928	54 days	32

Hottest day (TXx)

The hottest day of the year at Milner Dam, 1904 to 1946. The record is 44.4 C (111.9 F) in 1945, marked on the chart; the median year is 39.4 C (102.9 F).

Hottest day (TXx) at Milner Dam by year
Year	Hottest day (TXx)
1904	39.4 C (102.9 F)
1905	39.4 C (102.9 F)
1906	38.9 C (102.0 F)
1907	35.6 C (96.1 F)
1908	39.4 C (102.9 F)
1909	37.8 C (100.0 F)
1910	39.4 C (102.9 F)
1911	36.7 C (98.1 F)
1912	36.7 C (98.1 F)
1913	36.1 C (97.0 F)
1914	36.7 C (98.1 F)
1915	27.2 C (81.0 F)
1927	40.6 C (105.1 F)
1928	40.0 C (104.0 F)
1929	40.6 C (105.1 F)
1930	40.6 C (105.1 F)
1931	41.7 C (107.1 F)
1932	37.8 C (100.0 F)
1933	41.1 C (106.0 F)
1934	42.2 C (108.0 F)
1935	40.6 C (105.1 F)
1936	40.0 C (104.0 F)
1937	38.9 C (102.0 F)
1938	36.1 C (97.0 F)
1939	41.1 C (106.0 F)
1940	41.1 C (106.0 F)
1941	38.3 C (100.9 F)
1942	40.0 C (104.0 F)
1943	39.4 C (102.9 F)
1944	36.7 C (98.1 F)
1945	44.4 C (111.9 F)
1946	37.2 C (99.0 F)

Coldest night (TNn)

The coldest night of the year at Milner Dam, 1904 to 1946. The record is -34.4 C (-29.9 F) in 1937, marked on the chart; the median year is -23.0 C (-9.5 F).

Coldest night (TNn) at Milner Dam by year
Year	Coldest night (TNn)
1904	-21.1 C (-6.0 F)
1905	-27.2 C (-17.0 F)
1906	-21.1 C (-6.0 F)
1907	-22.8 C (-9.0 F)
1908	-23.9 C (-11.0 F)
1909	-17.8 C (0.0 F)
1910	-27.8 C (-18.0 F)
1911	-18.9 C (-2.0 F)
1912	-21.7 C (-7.1 F)
1913	-26.1 C (-15.0 F)
1914	-24.4 C (-11.9 F)
1915	-23.9 C (-11.0 F)
1927	-21.7 C (-7.1 F)
1928	-23.3 C (-9.9 F)
1929	-27.2 C (-17.0 F)
1930	-31.1 C (-24.0 F)
1931	-23.3 C (-9.9 F)
1932	-30.0 C (-22.0 F)
1933	-33.3 C (-27.9 F)
1934	-12.8 C (9.0 F)
1935	-24.4 C (-11.9 F)
1936	-26.1 C (-15.0 F)
1937	-34.4 C (-29.9 F)
1938	-15.6 C (3.9 F)
1939	-16.1 C (3.0 F)
1940	-18.3 C (-0.9 F)
1941	-19.4 C (-2.9 F)
1942	-28.9 C (-20.0 F)
1943	-19.4 C (-2.9 F)
1944	4.4 C (39.9 F)
1945	-21.1 C (-6.0 F)
1946	-15.6 C (3.9 F)

Wettest day (Rx1day)

The wettest day of the year at Milner Dam, 1904 to 1946. The record is 38.6 mm (1.5 in) in 1936, marked on the chart; the median year is 19.8 mm (0.8 in).

Wettest day (Rx1day) at Milner Dam by year
Year	Wettest day (Rx1day)
1904	21.6 mm (0.9 in)
1905	14.0 mm (0.6 in)
1906	27.9 mm (1.1 in)
1907	29.2 mm (1.1 in)
1908	25.4 mm (1.0 in)
1909	33.8 mm (1.3 in)
1910	15.2 mm (0.6 in)
1911	36.8 mm (1.4 in)
1912	22.9 mm (0.9 in)
1913	22.9 mm (0.9 in)
1914	19.1 mm (0.8 in)
1915	10.2 mm (0.4 in)
1927	15.5 mm (0.6 in)
1928	17.5 mm (0.7 in)
1929	14.2 mm (0.6 in)
1930	22.4 mm (0.9 in)
1931	14.2 mm (0.6 in)
1932	19.6 mm (0.8 in)
1933	12.2 mm (0.5 in)
1934	15.2 mm (0.6 in)
1935	19.8 mm (0.8 in)
1936	38.6 mm (1.5 in)
1937	22.4 mm (0.9 in)
1938	20.3 mm (0.8 in)
1939	11.2 mm (0.4 in)
1940	14.7 mm (0.6 in)
1941	19.8 mm (0.8 in)
1942	25.4 mm (1.0 in)
1943	22.9 mm (0.9 in)
1944	7.4 mm (0.29 in)
1945	9.9 mm (0.39 in)
1946	29.7 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Milner Dam, 1904 to 1946. The record is 75.7 mm (3.0 in) in 1908, marked on the chart; the median year is 29.9 mm (1.2 in).

Wettest five days (Rx5day) at Milner Dam by year
Year	Wettest five days (Rx5day)
1904	26.6 mm (1.0 in)
1905	14.0 mm (0.6 in)
1906	35.6 mm (1.4 in)
1907	71.9 mm (2.8 in)
1908	75.7 mm (3.0 in)
1909	71.9 mm (2.8 in)
1910	36.1 mm (1.4 in)
1911	57.9 mm (2.3 in)
1912	40.9 mm (1.6 in)
1913	27.1 mm (1.1 in)
1914	27.9 mm (1.1 in)
1915	12.0 mm (0.5 in)
1927	27.0 mm (1.1 in)
1928	36.3 mm (1.4 in)
1929	26.9 mm (1.1 in)
1930	37.1 mm (1.5 in)
1931	25.1 mm (1.0 in)
1932	29.2 mm (1.1 in)
1933	18.8 mm (0.7 in)
1934	20.8 mm (0.8 in)
1935	25.7 mm (1.0 in)
1936	60.4 mm (2.4 in)
1937	35.2 mm (1.4 in)
1938	41.9 mm (1.6 in)
1939	19.3 mm (0.8 in)
1940	30.0 mm (1.2 in)
1941	29.7 mm (1.2 in)
1942	49.6 mm (2.0 in)
1943	34.8 mm (1.4 in)
1944	7.4 mm (0.29 in)
1945	21.6 mm (0.9 in)
1946	31.0 mm (1.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Milner Dam, 1904 to 1946. The record is 109 days in 1928, marked on the chart; the median year is 54 days.

Longest dry spell (CDD) at Milner Dam by year
Year	Longest dry spell (CDD)
1904	56 days
1905	90 days
1906	53 days
1907	59 days
1908	53 days
1909	69 days
1910	55 days
1911	39 days
1912	33 days
1913	40 days
1914	69 days
1915	15 days
1927	29 days
1928	109 days
1929	61 days
1930	28 days
1931	36 days
1932	64 days
1933	41 days
1934	70 days
1935	95 days
1936	49 days
1937	49 days
1938	34 days
1939	63 days
1940	61 days
1941	40 days
1942	85 days
1943	61 days
1944	78 days
1945	16 days
1946	31 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.

Download the Data

Data for Milner Dam standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Milner 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 2026-10-14 (14 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).