Hamer 4 NW Weather Records (USC00103964)

Record envelope, standing records and threshold days for Hamer 4 NW (USC00103964), Idaho, United States, with 79 years of record.

Key Facts for Hamer 4 NW

Hamer 4 NW (USC00103964) is a weather station in Idaho, United States at 43.97 latitude and -112.26 longitude, 1,460 m (4,790 ft) above sea level.
The station reports from 1948 to 2026, 79 years of record.
1,464 records set at Hamer 4 NW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hamer 4 NW tied a daily record high maximum temperature of 28.3 C (82.9 F) on 5 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Idaho, United States, 43.97 latitude, -112.26 longitude.
Elevation: 1,460 m (4,790 ft).
Period of record: 1948 to 2026, 79 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

29 days at or beyond a record

The band shows the record high and record low for each calendar day at Hamer 4 NW. The lines show the 2026 daily maximum and minimum. 29 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Hamer 4 NW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.8 C (55.0 F)	-44.4 C (-47.9 F)	n/a	n/a
Feb	14.4 C (57.9 F)	-43.3 C (-45.9 F)	13.3 C (55.9 F)	-22.8 C (-9.0 F)
Mar	26.1 C (79.0 F)	-32.8 C (-27.0 F)	26.1 C (79.0 F)	-13.9 C (7.0 F)
Apr	30.0 C (86.0 F)	-17.2 C (1.0 F)	25.0 C (77.0 F)	-13.9 C (7.0 F)
May	33.9 C (93.0 F)	-10.0 C (14.0 F)	31.1 C (88.0 F)	-3.9 C (25.0 F)
Jun	38.9 C (102.0 F)	-3.9 C (25.0 F)	34.4 C (93.9 F)	-2.2 C (28.0 F)
Jul	40.6 C (105.1 F)	-2.2 C (28.0 F)	40.6 C (105.1 F)	4.4 C (39.9 F)
Aug	40.6 C (105.1 F)	-6.7 C (19.9 F)	39.4 C (102.9 F)	0.0 C (32.0 F)
Sep	37.2 C (99.0 F)	-13.3 C (8.1 F)	24.4 C (75.9 F)	1.1 C (34.0 F)
Oct	31.1 C (88.0 F)	-22.2 C (-8.0 F)	28.3 C (82.9 F)	0.6 C (33.1 F)
Nov	21.1 C (70.0 F)	-38.9 C (-38.0 F)	n/a	n/a
Dec	15.6 C (60.1 F)	-40.0 C (-40.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Hamer 4 NW still stand. 1985 holds the most, with 55.

Standing records at Hamer 4 NW by the year they were set
Year set	Standing records
1948	6
1949	30
1950	31
1951	18
1952	17
1953	18
1954	35
1955	34
1956	10
1957	10
1958	19
1959	16
1960	36
1961	23
1962	26
1963	14
1964	21
1965	25
1966	24
1967	7
1968	12
1969	16
1970	20
1971	11
1972	28
1973	8
1974	16
1975	35
1976	7
1977	21
1978	15
1979	14
1980	14
1981	25
1982	25
1983	13
1984	23
1985	55
1986	16
1987	21
1988	19
1989	18
1990	38
1991	15
1992	29
1993	22
1994	18
1995	19
1996	21
1997	11
1998	7
1999	12
2000	14
2001	15
2002	15
2003	27
2004	14
2005	5
2006	9
2007	13
2008	8
2009	6
2010	9
2011	7
2012	17
2013	19
2014	26
2015	32
2016	12
2017	16
2018	12
2019	18
2020	19
2021	13
2022	17
2023	24
2024	16
2025	10
2026	27

All-Time Record Progression

8 new records

8 all-time records were set at Hamer 4 NW between 1 January 1979 and 4 December 1998. Each dot is a new record.

When Hamer 4 NW set new all-time records
Date	Kind	Detail
1979-01-01	Record low maximum temperature	Record low maximum temperature -22.2 C (-8.0 F)
1979-01-01	Record low minimum temperature	Record low minimum temperature -44.4 C (-47.9 F)
1982-07-23	Record high minimum temperature	Record high minimum temperature 20.0 C (68.0 F)
1985-03-06	Record snow depth	Record snow depth 66.0 cm (26.0 in)
1990-12-22	Record low maximum temperature	Record low maximum temperature -22.8 C (-9.0 F)
1993-01-18	Record snow depth	Record snow depth 68.6 cm (27.0 in)
1993-01-22	Record snow depth	Record snow depth 71.1 cm (28.0 in)
1998-12-04	Record daily snowfall	Record daily snowfall 30.5 cm (12.0 in)

Wettest Day of Each Month

Mar: 53.6 mm (2.1 in)

The wettest day on record for each calendar month at Hamer 4 NW. The most was 53.6 mm (2.1 in) on 15 March 1963.

Record daily precipitation for each month at Hamer 4 NW
Month	Record daily precipitation (mm)	Date
Jan	26.2 mm (1.0 in)	19 January 1973
Feb	17.0 mm (0.7 in)	11 February 1962
Mar	53.6 mm (2.1 in)	15 March 1963
Apr	24.4 mm (1.0 in)	27 April 2024
May	34.0 mm (1.3 in)	6 May 1995
Jun	33.0 mm (1.3 in)	10 June 2004
Jul	34.0 mm (1.3 in)	20 July 1973
Aug	34.3 mm (1.4 in)	22 August 1951
Sep	24.1 mm (0.9 in)	15 September 2017
Oct	29.7 mm (1.2 in)	8 October 1949
Nov	27.2 mm (1.1 in)	10 November 1949
Dec	22.6 mm (0.9 in)	25 December 1959

Period of Record Coverage

1948 to 2026

79 years of record at Hamer 4 NW, 1948 to 2026. 16 years have data for under 90 percent of days and are left out of rankings: 1948, 1963, 1973, 1975, 1976, 1977, 1978, 1979 and others.

Days with data per year at Hamer 4 NW
Year	Days with data	Share of year	Complete
1948	68	19%	No
1949	362	99%	Yes
1950	364	100%	Yes
1951	361	99%	Yes
1952	364	99%	Yes
1953	362	99%	Yes
1954	364	100%	Yes
1955	364	100%	Yes
1956	360	98%	Yes
1957	364	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	361	99%	Yes
1961	352	96%	Yes
1962	345	95%	Yes
1963	313	86%	No
1964	361	99%	Yes
1965	362	99%	Yes
1966	362	99%	Yes
1967	364	100%	Yes
1968	366	100%	Yes
1969	364	100%	Yes
1970	359	98%	Yes
1971	361	99%	Yes
1972	350	96%	Yes
1973	325	89%	No
1974	355	97%	Yes
1975	317	87%	No
1976	327	89%	No
1977	318	87%	No
1978	305	84%	No
1979	328	90%	No
1980	340	93%	Yes
1981	330	90%	Yes
1982	330	90%	Yes
1983	352	96%	Yes
1984	337	92%	Yes
1985	330	90%	Yes
1986	343	94%	Yes
1987	339	93%	Yes
1988	318	87%	No
1989	317	87%	No
1990	320	88%	No
1991	329	90%	Yes
1992	275	75%	No
1993	339	93%	Yes
1994	363	99%	Yes
1995	357	98%	Yes
1996	362	99%	Yes
1997	358	98%	Yes
1998	363	99%	Yes
1999	359	98%	Yes
2000	358	98%	Yes
2001	354	97%	Yes
2002	343	94%	Yes
2003	335	92%	Yes
2004	355	97%	Yes
2005	364	100%	Yes
2006	365	100%	Yes
2007	308	84%	No
2008	304	83%	No
2009	334	92%	Yes
2010	364	100%	Yes
2011	365	100%	Yes
2012	365	100%	Yes
2013	364	100%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	332	91%	Yes
2017	365	100%	Yes
2018	347	95%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	364	100%	Yes
2023	364	100%	Yes
2024	366	100%	Yes
2025	292	80%	No
2026	210	58%	No

Latest Records

Latest records at Hamer 4 NW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
5 October 2026	Hamer 4 NW, US	daily high max (Tie, Provisional)	28.3 C (82.9 F)	tie	1 year	1 of 100 (Routine)
27 August 2026	Hamer 4 NW, US	daily high min (Provisional)	16.7 C (62.1 F)	0.6 C (1.1 F)	16 years	12 of 100 (Routine)
21 August 2026	Hamer 4 NW, US	daily high max (Provisional)	36.1 C (97.0 F)	1.1 C (2.0 F)	35 years	20 of 100 (Routine)
21 August 2026	Hamer 4 NW, US	daily high min (Provisional)	18.3 C (64.9 F)	3.9 C (7.0 F)	3 years	18 of 100 (Routine)
20 August 2026	Hamer 4 NW, US	daily high max (Provisional)	36.1 C (97.0 F)	1.1 C (2.0 F)	33 years	20 of 100 (Routine)
11 August 2026	Hamer 4 NW, US	daily high min	16.1 C (61.0 F)	1.1 C (2.0 F)	43 years	22 of 100 (Routine)
10 August 2026	Hamer 4 NW, US	daily high max (Tie)	37.2 C (99.0 F)	tie	8 years	2 of 100 (Routine)
6 August 2026	Hamer 4 NW, US	daily high max (Tie)	36.1 C (97.0 F)	tie	76 years	7 of 100 (Routine)
1 August 2026	Hamer 4 NW, US	daily high max	39.4 C (102.9 F)	2.2 C (4.0 F)	76 years	36 of 100 (Notable)
28 July 2026	Hamer 4 NW, US	daily high max	36.7 C (98.1 F)	0.6 C (1.1 F)	20 years	14 of 100 (Routine)
26 July 2026	Hamer 4 NW, US	daily high min	18.9 C (66.0 F)	1.7 C (3.1 F)	72 years	33 of 100 (Routine)
26 July 2026	Hamer 4 NW, US	daily high max (Tie)	36.7 C (98.1 F)	tie	67 years	6 of 100 (Routine)
25 July 2026	Hamer 4 NW, US	daily high max	38.9 C (102.0 F)	2.2 C (4.0 F)	23 years	19 of 100 (Routine)
24 July 2026	Hamer 4 NW, US	daily high max	38.3 C (100.9 F)	1.1 C (2.0 F)	67 years	30 of 100 (Routine)
21 July 2026	Hamer 4 NW, US	daily high min	18.3 C (64.9 F)	1.1 C (2.0 F)	12 years	13 of 100 (Routine)
16 July 2026	Hamer 4 NW, US	all-time high min (Tie)	20.0 C (68.0 F)	tie	43 years	10 of 100 (Routine)
15 July 2026	Hamer 4 NW, US	daily high min (Tie)	16.1 C (61.0 F)	tie	21 years	3 of 100 (Routine)
14 July 2026	Hamer 4 NW, US	daily high max	38.3 C (100.9 F)	0.5 C (0.9 F)	1 year	8 of 100 (Routine)
12 July 2026	Hamer 4 NW, US	all-time high max (Tie)	40.6 C (105.1 F)	tie	65 years	11 of 100 (Routine)
11 July 2026	Hamer 4 NW, US	daily high max	37.8 C (100.0 F)	0.6 C (1.1 F)	24 years	15 of 100 (Routine)

Climate Trend

58 complete years, 1949 to 2024

One stripe for each of 58 complete years at Hamer 4 NW, 1949 to 2024. Blue stripes are years cooler than the station's own mean of 6.0 C (42.8 F); red stripes are warmer. The coolest year was 1985, at 2.3 C (36.2 F), and the warmest was 2015, at 8.0 C (46.4 F). The strongest colour marks a difference of 3.7 C (6.7 F).

Annual mean temperature at Hamer 4 NW as warming stripes, 1949 to 2024
Year	Annual mean temperature	Difference from the station mean
1949	5.7 C	-0.25 C
1951	5.3 C	-0.68 C
1952	4.9 C	-1.12 C
1953	6.8 C	+0.81 C
1954	6.8 C	+0.80 C
1955	4.6 C	-1.40 C
1956	5.7 C	-0.30 C
1957	5.8 C	-0.17 C
1959	6.5 C	+0.51 C
1960	6.1 C	+0.10 C
1961	7.1 C	+1.10 C
1962	6.3 C	+0.28 C
1964	4.3 C	-1.67 C
1965	6.1 C	+0.09 C
1966	6.6 C	+0.63 C
1967	6.5 C	+0.48 C
1968	5.6 C	-0.39 C
1969	6.6 C	+0.60 C
1970	6.2 C	+0.24 C
1971	4.8 C	-1.14 C
1972	5.6 C	-0.37 C
1974	6.0 C	-0.02 C
1976	5.0 C	-1.03 C
1979	5.2 C	-0.83 C
1983	5.5 C	-0.48 C
1984	3.6 C	-2.35 C
1985	2.3 C	-3.66 C
1986	5.8 C	-0.23 C
1987	6.5 C	+0.56 C
1990	6.5 C	+0.48 C
1991	5.8 C	-0.21 C
1993	3.7 C	-2.25 C
1994	7.0 C	+0.99 C
1995	6.4 C	+0.43 C
1996	5.9 C	-0.09 C
1997	6.1 C	+0.11 C
1998	6.4 C	+0.42 C
1999	6.3 C	+0.27 C
2000	6.6 C	+0.59 C
2001	6.4 C	+0.40 C
2002	5.2 C	-0.83 C
2003	7.7 C	+1.75 C
2004	6.6 C	+0.62 C
2005	6.2 C	+0.25 C
2006	6.4 C	+0.42 C
2010	6.3 C	+0.28 C
2011	5.2 C	-0.82 C
2012	7.8 C	+1.85 C
2013	6.0 C	+0.02 C
2014	7.4 C	+1.43 C
2015	8.0 C	+2.01 C
2017	6.8 C	+0.84 C
2019	6.0 C	-0.02 C
2020	5.8 C	-0.17 C
2021	6.5 C	+0.56 C
2022	5.3 C	-0.66 C
2023	5.1 C	-0.85 C
2024	7.9 C	+1.90 C

The fitted trend in annual mean temperature here over 1949 to 2024 is 0.11 C (-0.01 to 0.23) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.20 F (-0.01 to 0.41) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Hamer 4 NW
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.11 C (-0.01 to 0.23) per decade	0.20 F (-0.01 to 0.41) per decade	1949 to 2024	58	Not clearly different from zero
Mean daily maximum	0.07 C (-0.05 to 0.19) per decade	0.1 F (-0.1 to 0.3) per decade	1949 to 2024	58	Not clearly different from zero
Mean daily minimum	0.15 C (0.01 to 0.29) per decade	0.27 F (0.01 to 0.52) per decade	1949 to 2024	58	Rise

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

1948 to 2026

Yearly extremes at Hamer 4 NW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1960	36.1 C (97.0 F)	79
Coldest night (TNn)	-44.4 C (-47.9 F)	1979	-32.2 C (-26.0 F)	79
Wettest day (Rx1day)	53.6 mm (2.1 in)	1963	19.8 mm (0.8 in)	79
Wettest five days (Rx5day)	58.4 mm (2.3 in)	1991	28.5 mm (1.1 in)	79
Longest dry spell (CDD)	129 days	1953	40 days	79

Hottest day (TXx)

The hottest day of the year at Hamer 4 NW, 1948 to 2026. The record is 40.6 C (105.1 F) in 1960, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Hamer 4 NW by year
Year	Hottest day (TXx)
1948	19.4 C (66.9 F)
1949	37.2 C (99.0 F)
1950	36.1 C (97.0 F)
1951	37.8 C (100.0 F)
1952	33.9 C (93.0 F)
1953	36.1 C (97.0 F)
1954	36.7 C (98.1 F)
1955	35.6 C (96.1 F)
1956	34.4 C (93.9 F)
1957	35.6 C (96.1 F)
1958	36.7 C (98.1 F)
1959	38.9 C (102.0 F)
1960	40.6 C (105.1 F)
1961	38.9 C (102.0 F)
1962	36.1 C (97.0 F)
1963	35.6 C (96.1 F)
1964	35.6 C (96.1 F)
1965	35.0 C (95.0 F)
1966	36.7 C (98.1 F)
1967	35.0 C (95.0 F)
1968	35.6 C (96.1 F)
1969	36.7 C (98.1 F)
1970	35.0 C (95.0 F)
1971	35.6 C (96.1 F)
1972	36.1 C (97.0 F)
1973	35.0 C (95.0 F)
1974	36.7 C (98.1 F)
1975	36.1 C (97.0 F)
1976	36.7 C (98.1 F)
1977	36.1 C (97.0 F)
1978	35.6 C (96.1 F)
1979	37.2 C (99.0 F)
1980	35.0 C (95.0 F)
1981	36.1 C (97.0 F)
1982	35.6 C (96.1 F)
1983	36.7 C (98.1 F)
1984	33.3 C (91.9 F)
1985	36.1 C (97.0 F)
1986	34.4 C (93.9 F)
1987	33.9 C (93.0 F)
1988	38.9 C (102.0 F)
1989	36.7 C (98.1 F)
1990	40.6 C (105.1 F)
1991	36.1 C (97.0 F)
1992	37.2 C (99.0 F)
1993	32.2 C (90.0 F)
1994	37.8 C (100.0 F)
1995	34.4 C (93.9 F)
1996	35.0 C (95.0 F)
1997	33.9 C (93.0 F)
1998	35.0 C (95.0 F)
1999	33.9 C (93.0 F)
2000	37.2 C (99.0 F)
2001	36.1 C (97.0 F)
2002	39.4 C (102.9 F)
2003	37.8 C (100.0 F)
2004	35.6 C (96.1 F)
2005	37.2 C (99.0 F)
2006	37.2 C (99.0 F)
2007	38.3 C (100.9 F)
2008	35.0 C (95.0 F)
2009	34.4 C (93.9 F)
2010	35.6 C (96.1 F)
2011	34.4 C (93.9 F)
2012	36.1 C (97.0 F)
2013	37.2 C (99.0 F)
2014	36.1 C (97.0 F)
2015	37.2 C (99.0 F)
2016	36.1 C (97.0 F)
2017	37.8 C (100.0 F)
2018	38.3 C (100.9 F)
2019	36.1 C (97.0 F)
2020	37.2 C (99.0 F)
2021	36.7 C (98.1 F)
2022	37.8 C (100.0 F)
2023	36.7 C (98.1 F)
2024	37.8 C (100.0 F)
2025	36.7 C (98.1 F)
2026	40.6 C (105.1 F)

Coldest night (TNn)

The coldest night of the year at Hamer 4 NW, 1948 to 2026. The record is -44.4 C (-47.9 F) in 1979, marked on the chart; the median year is -32.2 C (-26.0 F).

Coldest night (TNn) at Hamer 4 NW by year
Year	Coldest night (TNn)
1948	-30.0 C (-22.0 F)
1949	-35.6 C (-32.1 F)
1950	-35.0 C (-31.0 F)
1951	-31.7 C (-25.1 F)
1952	-34.4 C (-29.9 F)
1953	-25.6 C (-14.1 F)
1954	-31.7 C (-25.1 F)
1955	-34.4 C (-29.9 F)
1956	-37.2 C (-35.0 F)
1957	-32.2 C (-26.0 F)
1958	-27.2 C (-17.0 F)
1959	-33.3 C (-27.9 F)
1960	-37.2 C (-35.0 F)
1961	-32.2 C (-26.0 F)
1962	-36.1 C (-33.0 F)
1963	-35.0 C (-31.0 F)
1964	-34.4 C (-29.9 F)
1965	-27.8 C (-18.0 F)
1966	-27.8 C (-18.0 F)
1967	-31.1 C (-24.0 F)
1968	-33.3 C (-27.9 F)
1969	-24.4 C (-11.9 F)
1970	-31.7 C (-25.1 F)
1971	-35.6 C (-32.1 F)
1972	-39.4 C (-38.9 F)
1973	-32.8 C (-27.0 F)
1974	-35.6 C (-32.1 F)
1975	-36.1 C (-33.0 F)
1976	-29.4 C (-20.9 F)
1977	-35.6 C (-32.1 F)
1978	-38.9 C (-38.0 F)
1979	-44.4 C (-47.9 F)
1980	-28.3 C (-18.9 F)
1981	-27.8 C (-18.0 F)
1982	-36.1 C (-33.0 F)
1983	-40.0 C (-40.0 F)
1984	-36.7 C (-34.1 F)
1985	-43.3 C (-45.9 F)
1986	-26.7 C (-16.1 F)
1987	-28.9 C (-20.0 F)
1988	-31.7 C (-25.1 F)
1989	-34.4 C (-29.9 F)
1990	-40.0 C (-40.0 F)
1991	-32.8 C (-27.0 F)
1992	-33.3 C (-27.9 F)
1993	-35.6 C (-32.1 F)
1994	-29.4 C (-20.9 F)
1995	-26.1 C (-15.0 F)
1996	-36.1 C (-33.0 F)
1997	-27.2 C (-17.0 F)
1998	-34.4 C (-29.9 F)
1999	-26.1 C (-15.0 F)
2000	-26.1 C (-15.0 F)
2001	-30.6 C (-23.1 F)
2002	-31.1 C (-24.0 F)
2003	-23.9 C (-11.0 F)
2004	-33.3 C (-27.9 F)
2005	-32.2 C (-26.0 F)
2006	-27.2 C (-17.0 F)
2007	-30.0 C (-22.0 F)
2008	-31.7 C (-25.1 F)
2009	-32.2 C (-26.0 F)
2010	-30.0 C (-22.0 F)
2011	-33.9 C (-29.0 F)
2012	-28.9 C (-20.0 F)
2013	-35.6 C (-32.1 F)
2014	-28.3 C (-18.9 F)
2015	-32.2 C (-26.0 F)
2016	-31.7 C (-25.1 F)
2017	-32.8 C (-27.0 F)
2018	-24.4 C (-11.9 F)
2019	-30.0 C (-22.0 F)
2020	-28.9 C (-20.0 F)
2021	-25.6 C (-14.1 F)
2022	-32.2 C (-26.0 F)
2023	-35.0 C (-31.0 F)
2024	-33.9 C (-29.0 F)
2025	-26.1 C (-15.0 F)
2026	-22.8 C (-9.0 F)

Wettest day (Rx1day)

The wettest day of the year at Hamer 4 NW, 1948 to 2026. The record is 53.6 mm (2.1 in) in 1963, marked on the chart; the median year is 19.8 mm (0.8 in).

Wettest day (Rx1day) at Hamer 4 NW by year
Year	Wettest day (Rx1day)
1948	3.6 mm (0.14 in)
1949	32.3 mm (1.3 in)
1950	25.1 mm (1.0 in)
1951	34.3 mm (1.4 in)
1952	29.0 mm (1.1 in)
1953	19.3 mm (0.8 in)
1954	11.7 mm (0.5 in)
1955	20.3 mm (0.8 in)
1956	15.2 mm (0.6 in)
1957	15.2 mm (0.6 in)
1958	14.5 mm (0.6 in)
1959	22.6 mm (0.9 in)
1960	15.2 mm (0.6 in)
1961	19.1 mm (0.8 in)
1962	25.7 mm (1.0 in)
1963	53.6 mm (2.1 in)
1964	29.2 mm (1.1 in)
1965	16.8 mm (0.7 in)
1966	21.1 mm (0.8 in)
1967	14.0 mm (0.6 in)
1968	21.1 mm (0.8 in)
1969	24.6 mm (1.0 in)
1970	17.8 mm (0.7 in)
1971	19.8 mm (0.8 in)
1972	21.3 mm (0.8 in)
1973	34.0 mm (1.3 in)
1974	20.1 mm (0.8 in)
1975	25.7 mm (1.0 in)
1976	24.6 mm (1.0 in)
1977	17.0 mm (0.7 in)
1978	10.2 mm (0.4 in)
1979	24.9 mm (1.0 in)
1980	24.1 mm (0.9 in)
1981	18.8 mm (0.7 in)
1982	19.1 mm (0.8 in)
1983	13.0 mm (0.5 in)
1984	20.6 mm (0.8 in)
1985	23.9 mm (0.9 in)
1986	15.7 mm (0.6 in)
1987	20.3 mm (0.8 in)
1988	11.2 mm (0.4 in)
1989	20.6 mm (0.8 in)
1990	9.9 mm (0.39 in)
1991	32.8 mm (1.3 in)
1992	23.4 mm (0.9 in)
1993	18.3 mm (0.7 in)
1994	16.5 mm (0.6 in)
1995	34.0 mm (1.3 in)
1996	19.8 mm (0.8 in)
1997	24.1 mm (0.9 in)
1998	29.5 mm (1.2 in)
1999	32.0 mm (1.3 in)
2000	12.4 mm (0.5 in)
2001	14.5 mm (0.6 in)
2002	11.4 mm (0.4 in)
2003	22.9 mm (0.9 in)
2004	33.0 mm (1.3 in)
2005	16.5 mm (0.6 in)
2006	19.1 mm (0.8 in)
2007	14.0 mm (0.6 in)
2008	19.1 mm (0.8 in)
2009	18.3 mm (0.7 in)
2010	25.9 mm (1.0 in)
2011	17.8 mm (0.7 in)
2012	12.7 mm (0.5 in)
2013	12.4 mm (0.5 in)
2014	22.6 mm (0.9 in)
2015	28.4 mm (1.1 in)
2016	18.3 mm (0.7 in)
2017	24.1 mm (0.9 in)
2018	22.4 mm (0.9 in)
2019	15.2 mm (0.6 in)
2020	17.0 mm (0.7 in)
2021	12.7 mm (0.5 in)
2022	18.5 mm (0.7 in)
2023	13.2 mm (0.5 in)
2024	24.4 mm (1.0 in)
2025	23.1 mm (0.9 in)
2026	0.3 mm (0.01 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hamer 4 NW, 1948 to 2026. The record is 58.4 mm (2.3 in) in 1991, marked on the chart; the median year is 28.5 mm (1.1 in).

Wettest five days (Rx5day) at Hamer 4 NW by year
Year	Wettest five days (Rx5day)
1948	7.4 mm (0.29 in)
1949	44.8 mm (1.8 in)
1950	33.5 mm (1.3 in)
1951	55.2 mm (2.2 in)
1952	36.4 mm (1.4 in)
1953	35.6 mm (1.4 in)
1954	20.1 mm (0.8 in)
1955	23.6 mm (0.9 in)
1956	24.4 mm (1.0 in)
1957	24.2 mm (1.0 in)
1958	23.2 mm (0.9 in)
1959	45.5 mm (1.8 in)
1960	16.5 mm (0.6 in)
1961	25.1 mm (1.0 in)
1962	38.2 mm (1.5 in)
1963	53.6 mm (2.1 in)
1964	38.8 mm (1.5 in)
1965	33.2 mm (1.3 in)
1966	29.2 mm (1.1 in)
1967	28.5 mm (1.1 in)
1968	41.1 mm (1.6 in)
1969	24.9 mm (1.0 in)
1970	41.6 mm (1.6 in)
1971	27.1 mm (1.1 in)
1972	26.6 mm (1.0 in)
1973	47.8 mm (1.9 in)
1974	23.1 mm (0.9 in)
1975	35.9 mm (1.4 in)
1976	24.6 mm (1.0 in)
1977	26.4 mm (1.0 in)
1978	31.2 mm (1.2 in)
1979	25.4 mm (1.0 in)
1980	42.4 mm (1.7 in)
1981	20.8 mm (0.8 in)
1982	32.5 mm (1.3 in)
1983	31.8 mm (1.3 in)
1984	38.3 mm (1.5 in)
1985	23.9 mm (0.9 in)
1986	35.2 mm (1.4 in)
1987	22.4 mm (0.9 in)
1988	34.2 mm (1.3 in)
1989	23.9 mm (0.9 in)
1990	16.2 mm (0.6 in)
1991	58.4 mm (2.3 in)
1992	24.4 mm (1.0 in)
1993	49.5 mm (1.9 in)
1994	36.0 mm (1.4 in)
1995	51.6 mm (2.0 in)
1996	21.3 mm (0.8 in)
1997	32.5 mm (1.3 in)
1998	34.6 mm (1.4 in)
1999	47.9 mm (1.9 in)
2000	21.3 mm (0.8 in)
2001	21.3 mm (0.8 in)
2002	22.1 mm (0.9 in)
2003	38.1 mm (1.5 in)
2004	34.8 mm (1.4 in)
2005	32.3 mm (1.3 in)
2006	47.6 mm (1.9 in)
2007	35.6 mm (1.4 in)
2008	24.4 mm (1.0 in)
2009	27.7 mm (1.1 in)
2010	25.9 mm (1.0 in)
2011	27.9 mm (1.1 in)
2012	24.1 mm (0.9 in)
2013	12.7 mm (0.5 in)
2014	34.5 mm (1.4 in)
2015	41.1 mm (1.6 in)
2016	34.8 mm (1.4 in)
2017	28.7 mm (1.1 in)
2018	36.5 mm (1.4 in)
2019	15.8 mm (0.6 in)
2020	17.0 mm (0.7 in)
2021	23.2 mm (0.9 in)
2022	18.5 mm (0.7 in)
2023	22.4 mm (0.9 in)
2024	26.1 mm (1.0 in)
2025	7.9 mm (0.31 in)
2026	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hamer 4 NW, 1948 to 2026. The record is 129 days in 1953, marked on the chart; the median year is 40 days.

Longest dry spell (CDD) at Hamer 4 NW by year
Year	Longest dry spell (CDD)
1948	24 days
1949	35 days
1950	34 days
1951	35 days
1952	63 days
1953	129 days
1954	49 days
1955	41 days
1956	40 days
1957	42 days
1958	57 days
1959	56 days
1960	49 days
1961	30 days
1962	46 days
1963	41 days
1964	47 days
1965	66 days
1966	44 days
1967	40 days
1968	39 days
1969	36 days
1970	42 days
1971	34 days
1972	38 days
1973	21 days
1974	56 days
1975	37 days
1976	89 days
1977	45 days
1978	52 days
1979	34 days
1980	30 days
1981	38 days
1982	30 days
1983	24 days
1984	35 days
1985	26 days
1986	25 days
1987	59 days
1988	57 days
1989	28 days
1990	26 days
1991	44 days
1992	43 days
1993	36 days
1994	38 days
1995	44 days
1996	37 days
1997	37 days
1998	32 days
1999	53 days
2000	27 days
2001	53 days
2002	41 days
2003	63 days
2004	31 days
2005	40 days
2006	39 days
2007	47 days
2008	30 days
2009	57 days
2010	27 days
2011	42 days
2012	41 days
2013	38 days
2014	37 days
2015	39 days
2016	55 days
2017	48 days
2018	42 days
2019	55 days
2020	49 days
2021	28 days
2022	44 days
2023	39 days
2024	43 days
2025	41 days
2026	39 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.

Frost Dates and Growing Season

58 years with a frost

Across 58 years with a frost, the median last spring frost at Hamer 4 NW falls on 14 June and the median first autumn frost on 5 September, which leaves a median of 85 days between them.

Fitted over all years, the growing season changes by +1.3 days per decade at this station.

Frost dates and growing season at Hamer 4 NW
Measure	Median, all years	Earliest period	Recent period (1987 to 2024)	Recent against earliest	Fitted trend
Last spring frost	14 June	n/a	15 June	n/a	+0.3 days per decade
First autumn frost	5 September	n/a	9 September	n/a	+1.7 days per decade
Growing days	85 days	n/a	85 days	n/a	+1.3 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

73 years, 1949 to 2024

A day with at least 19.8 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 44.0 mm (1.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Hamer 4 NW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	19.8 mm (0.8 in)
5 years	26.3 mm (1.0 in)
10 years	30.6 mm (1.2 in)
25 years	36.0 mm (1.4 in)
50 years	40.0 mm (1.6 in)
100 years	44.0 mm (1.7 in)	Longer than the 73 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, 73 years of values from 1949 to 2024.

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: 53.6 mm (2.1 in) in 1963; 34.3 mm (1.4 in) in 1951; 34.0 mm (1.3 in) in 1973.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2005 to 2024 against 1961 to 1990

Over 2005 to 2024, Hamer 4 NW had a mean temperature of 6.5 C (43.6 F) and 197.5 mm (7.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Rock Springs (United States, 567 km away), Neola (United States, 435 km away) and Altamont (United States, 432 km away).

Climate twins of Hamer 4 NW: stations whose 1961 to 1990 climate is closest to its 2005 to 2024 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Rock Springs	United States	567 km (352 mi)	6.5 C (43.7 F)	290.5 mm (11.4 in)	0.82
Neola	United States	435 km (270 mi)	7.0 C (44.5 F)	225.5 mm (8.9 in)	0.88
Altamont	United States	432 km (268 mi)	6.3 C (43.4 F)	232.0 mm (9.1 in)	0.88

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Hamer 4 NW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hamer 4 NW 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 2026-10-13. Last revised 13 October 2026 (2026-10-13).