Glenrock 5 ESE Weather Records (USC00483950)

Record envelope, standing records and threshold days for Glenrock 5 ESE (USC00483950), Wyoming, United States, with 68 years of record.

Key Facts for Glenrock 5 ESE

Glenrock 5 ESE (USC00483950) is a weather station in Wyoming, United States at 42.83 latitude and -105.79 longitude, 1,508 m (4,948 ft) above sea level.
The station reports from 1941 to 2008, 68 years of record.
1,464 records set at Glenrock 5 ESE still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Glenrock 5 ESE set a daily record high maximum temperature of 13.9 C (57.0 F) on 5 January 2008.

About the Station

Location: Wyoming, United States, 42.83 latitude, -105.79 longitude.
Elevation: 1,508 m (4,948 ft).
Period of record: 1941 to 2008, 68 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

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 Glenrock 5 ESE. 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 Glenrock 5 ESE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	20.6 C (69.1 F)	-40.6 C (-41.1 F)	n/a	n/a
Feb	20.6 C (69.1 F)	-33.3 C (-27.9 F)	n/a	n/a
Mar	26.7 C (80.1 F)	-33.3 C (-27.9 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-22.2 C (-8.0 F)	n/a	n/a
May	36.1 C (97.0 F)	-8.3 C (17.1 F)	n/a	n/a
Jun	40.6 C (105.1 F)	-3.3 C (26.1 F)	n/a	n/a
Jul	41.7 C (107.1 F)	-1.1 C (30.0 F)	n/a	n/a
Aug	41.7 C (107.1 F)	0.0 C (32.0 F)	n/a	n/a
Sep	36.7 C (98.1 F)	-8.3 C (17.1 F)	n/a	n/a
Oct	31.7 C (89.1 F)	-22.8 C (-9.0 F)	n/a	n/a
Nov	26.7 C (80.1 F)	-29.4 C (-20.9 F)	n/a	n/a
Dec	19.4 C (66.9 F)	-40.0 C (-40.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Glenrock 5 ESE still stand. 1988 holds the most, with 43.

Standing records at Glenrock 5 ESE by the year they were set
Year set	Standing records
1941	18
1942	23
1943	40
1944	13
1945	17
1946	23
1947	30
1948	9
1949	20
1950	33
1951	21
1952	27
1953	31
1954	33
1955	25
1956	23
1957	11
1958	26
1959	21
1960	25
1961	11
1962	32
1963	23
1964	12
1965	29
1966	21
1967	20
1968	15
1969	36
1970	22
1971	13
1972	40
1973	29
1974	23
1975	21
1976	10
1977	24
1978	21
1979	18
1980	19
1981	23
1982	17
1983	25
1984	9
1985	35
1986	27
1987	18
1988	43
1989	37
1990	23
1991	13
1992	26
1993	20
1994	10
1995	25
1996	25
1997	31
1998	21
1999	12
2000	19
2001	13
2002	20
2003	13
2004	10
2005	13
2006	20
2007	7
2008	1

All-Time Record Progression

4 new records

4 all-time records were set at Glenrock 5 ESE between 17 July 1974 and 21 December 1990. Each dot is a new record.

When Glenrock 5 ESE set new all-time records
Date	Kind	Detail
1974-07-17	Record high minimum temperature	Record high minimum temperature 24.4 C (75.9 F)
1977-07-18	Record high minimum temperature	Record high minimum temperature 25.6 C (78.1 F)
1989-02-03	Record low maximum temperature	Record low maximum temperature -30.0 C (-22.0 F)
1990-12-21	Record low maximum temperature	Record low maximum temperature -30.6 C (-23.1 F)

Wettest Day of Each Month

May: 99.6 mm (3.9 in)

The wettest day on record for each calendar month at Glenrock 5 ESE. The most was 99.6 mm (3.9 in) on 5 May 1971.

Record daily precipitation for each month at Glenrock 5 ESE
Month	Record daily precipitation (mm)	Date
Jan	17.8 mm (0.7 in)	28 January 1950
Feb	27.9 mm (1.1 in)	3 February 1997
Mar	45.7 mm (1.8 in)	15 March 1944
Apr	94.0 mm (3.7 in)	14 April 1945
May	99.6 mm (3.9 in)	5 May 1971
Jun	62.2 mm (2.4 in)	12 June 1970
Jul	51.3 mm (2.0 in)	19 July 1973
Aug	31.8 mm (1.3 in)	6 August 1941
Sep	55.4 mm (2.2 in)	20 September 1963
Oct	56.9 mm (2.2 in)	6 October 1962
Nov	35.1 mm (1.4 in)	19 November 1977
Dec	16.5 mm (0.6 in)	22 December 1941

Period of Record Coverage

1941 to 2008

68 years of record at Glenrock 5 ESE, 1941 to 2008. 24 years have data for under 90 percent of days and are left out of rankings: 1941, 1948, 1957, 1976, 1982, 1983, 1984, 1985 and others.

Days with data per year at Glenrock 5 ESE
Year	Days with data	Share of year	Complete
1941	183	50%	No
1942	364	100%	Yes
1943	362	99%	Yes
1944	366	100%	Yes
1945	353	97%	Yes
1946	364	100%	Yes
1947	364	100%	Yes
1948	153	42%	No
1949	345	95%	Yes
1950	333	91%	Yes
1951	347	95%	Yes
1952	358	98%	Yes
1953	355	97%	Yes
1954	361	99%	Yes
1955	356	98%	Yes
1956	356	97%	Yes
1957	305	84%	No
1958	358	98%	Yes
1959	363	99%	Yes
1960	348	95%	Yes
1961	363	99%	Yes
1962	331	91%	Yes
1963	332	91%	Yes
1964	357	98%	Yes
1965	336	92%	Yes
1966	363	99%	Yes
1967	363	99%	Yes
1968	365	100%	Yes
1969	362	99%	Yes
1970	365	100%	Yes
1971	362	99%	Yes
1972	349	95%	Yes
1973	357	98%	Yes
1974	363	99%	Yes
1975	348	95%	Yes
1976	327	89%	No
1977	359	98%	Yes
1978	362	99%	Yes
1979	333	91%	Yes
1980	363	99%	Yes
1981	365	100%	Yes
1982	298	82%	No
1983	285	78%	No
1984	265	72%	No
1985	231	63%	No
1986	264	72%	No
1987	282	77%	No
1988	347	95%	Yes
1989	353	97%	Yes
1990	348	95%	Yes
1991	345	95%	Yes
1992	325	89%	No
1993	316	87%	No
1994	344	94%	Yes
1995	329	90%	Yes
1996	320	87%	No
1997	292	80%	No
1998	274	75%	No
1999	270	74%	No
2000	260	71%	No
2001	232	64%	No
2002	257	70%	No
2003	214	59%	No
2004	183	50%	No
2005	150	41%	No
2006	334	92%	Yes
2007	211	58%	No
2008	31	8%	No

Latest Records

Latest records at Glenrock 5 ESE
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
5 January 2008	Glenrock 5 ESE, US	daily high max	13.9 C (57.0 F)	1.1 C (2.0 F)	52 years	22 of 100 (Routine)
19 November 2007	Glenrock 5 ESE, US	daily high max	21.1 C (70.0 F)	2.2 C (4.0 F)	10 years	12 of 100 (Routine)
18 November 2007	Glenrock 5 ESE, US	daily high max	20.0 C (68.0 F)	1.1 C (2.0 F)	57 years	24 of 100 (Routine)
18 November 2007	Glenrock 5 ESE, US	daily high min	10.0 C (50.0 F)	2.8 C (5.0 F)	30 years	19 of 100 (Routine)
8 June 2007	Glenrock 5 ESE, US	daily low min	0.6 C (33.1 F)	0.5 C (0.9 F)	44 years	20 of 100 (Routine)
7 June 2007	Glenrock 5 ESE, US	daily low max	11.7 C (53.1 F)	1.6 C (2.9 F)	13 years	12 of 100 (Routine)
29 April 2007	Glenrock 5 ESE, US	daily high min	11.7 C (53.1 F)	2.3 C (4.1 F)	20 years	17 of 100 (Routine)
7 April 2007	Glenrock 5 ESE, US	daily low max	0.0 C (32.0 F)	0.6 C (1.1 F)	42 years	18 of 100 (Routine)
7 November 2006	Glenrock 5 ESE, US	daily high min	11.7 C (53.1 F)	2.3 C (4.1 F)	36 years	20 of 100 (Routine)
17 October 2006	Glenrock 5 ESE, US	daily low max (Tie)	2.8 C (37.0 F)	tie	16 years	2 of 100 (Routine)
13 September 2006	Glenrock 5 ESE, US	daily high max (Tie)	32.2 C (90.0 F)	tie	57 years	5 of 100 (Routine)
29 July 2006	Glenrock 5 ESE, US	daily high max	40.0 C (104.0 F)	1.1 C (2.0 F)	25 years	15 of 100 (Routine)
28 July 2006	Glenrock 5 ESE, US	daily high max	38.9 C (102.0 F)	1.1 C (2.0 F)	36 years	19 of 100 (Routine)
20 July 2006	Glenrock 5 ESE, US	daily high min (Tie)	20.0 C (68.0 F)	tie	36 years	4 of 100 (Routine)
18 July 2006	Glenrock 5 ESE, US	daily high max (Tie)	39.4 C (102.9 F)	tie	28 years	3 of 100 (Routine)
15 July 2006	Glenrock 5 ESE, US	daily high max (Tie)	38.9 C (102.0 F)	tie	52 years	5 of 100 (Routine)
9 July 2006	Glenrock 5 ESE, US	daily low max	20.0 C (68.0 F)	3.3 C (5.9 F)	15 years	18 of 100 (Routine)
14 June 2006	Glenrock 5 ESE, US	daily high max	38.3 C (100.9 F)	3.3 C (5.9 F)	53 years	27 of 100 (Routine)
13 June 2006	Glenrock 5 ESE, US	daily high max	38.9 C (102.0 F)	3.3 C (5.9 F)	27 years	19 of 100 (Routine)
7 June 2006	Glenrock 5 ESE, US	daily high min	15.6 C (60.1 F)	1.2 C (2.2 F)	28 years	17 of 100 (Routine)

Climate Trend

43 complete years, 1942 to 1999

One stripe for each of 43 complete years at Glenrock 5 ESE, 1942 to 1999. Blue stripes are years cooler than the station's own mean of 8.7 C (47.7 F); red stripes are warmer. The coolest year was 1991, at 7.0 C (44.6 F), and the warmest was 1988, at 10.1 C (50.2 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Glenrock 5 ESE as warming stripes, 1942 to 1999
Year	Annual mean temperature	Difference from the station mean
1942	7.4 C	-1.27 C
1943	8.3 C	-0.41 C
1944	7.2 C	-1.51 C
1946	9.1 C	+0.41 C
1947	8.1 C	-0.57 C
1949	7.9 C	-0.82 C
1951	7.4 C	-1.34 C
1952	8.7 C	-0.05 C
1953	9.9 C	+1.15 C
1954	10.1 C	+1.40 C
1955	8.1 C	-0.62 C
1956	8.5 C	-0.24 C
1958	9.2 C	+0.45 C
1960	8.3 C	-0.37 C
1961	8.8 C	+0.04 C
1964	8.4 C	-0.29 C
1966	9.4 C	+0.72 C
1967	9.1 C	+0.35 C
1968	8.8 C	+0.07 C
1969	9.6 C	+0.90 C
1970	8.9 C	+0.17 C
1971	8.3 C	-0.44 C
1972	7.9 C	-0.83 C
1973	8.3 C	-0.37 C
1974	9.0 C	+0.28 C
1975	8.6 C	-0.14 C
1977	9.7 C	+1.02 C
1978	7.6 C	-1.15 C
1980	8.6 C	-0.07 C
1981	10.1 C	+1.38 C
1982	8.5 C	-0.25 C
1986	10.0 C	+1.24 C
1988	10.1 C	+1.42 C
1989	8.1 C	-0.63 C
1990	8.2 C	-0.48 C
1991	7.0 C	-1.73 C
1992	9.6 C	+0.86 C
1993	7.3 C	-1.46 C
1994	10.1 C	+1.41 C
1995	9.4 C	+0.68 C
1996	9.1 C	+0.39 C
1997	8.8 C	+0.06 C
1999	9.6 C	+0.84 C

The fitted trend in annual mean temperature here over 1942 to 1999 is 0.13 C (-0.02 to 0.28) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.24 F (-0.04 to 0.51) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Glenrock 5 ESE
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.13 C (-0.02 to 0.28) per decade	0.24 F (-0.04 to 0.51) per decade	1942 to 1999	43	Not clearly different from zero
Mean daily maximum	-0.1 C (-0.3 to 0.1) per decade	-0.1 F (-0.5 to 0.2) per decade	1942 to 1999	43	Not clearly different from zero
Mean daily minimum	0.3 C (0.2 to 0.5) per decade	0.6 F (0.3 to 0.9) per decade	1942 to 1999	43	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

1941 to 2008

Yearly extremes at Glenrock 5 ESE: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.7 C (107.1 F)	1957	37.8 C (100.0 F)	68
Coldest night (TNn)	-40.6 C (-41.1 F)	1943	-28.9 C (-20.0 F)	68
Wettest day (Rx1day)	99.6 mm (3.9 in)	1971	29.0 mm (1.1 in)	68
Wettest five days (Rx5day)	118.7 mm (4.7 in)	1971	44.0 mm (1.7 in)	68
Longest dry spell (CDD)	77 days	1974	34 days	68

Hottest day (TXx)

The hottest day of the year at Glenrock 5 ESE, 1941 to 2008. The record is 41.7 C (107.1 F) in 1957, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Glenrock 5 ESE by year
Year	Hottest day (TXx)
1941	37.8 C (100.0 F)
1942	37.8 C (100.0 F)
1943	36.7 C (98.1 F)
1944	37.2 C (99.0 F)
1945	36.1 C (97.0 F)
1946	36.7 C (98.1 F)
1947	37.2 C (99.0 F)
1948	37.2 C (99.0 F)
1949	36.7 C (98.1 F)
1950	36.7 C (98.1 F)
1951	37.8 C (100.0 F)
1952	37.8 C (100.0 F)
1953	38.9 C (102.0 F)
1954	40.6 C (105.1 F)
1955	37.2 C (99.0 F)
1956	37.8 C (100.0 F)
1957	41.7 C (107.1 F)
1958	37.2 C (99.0 F)
1959	36.7 C (98.1 F)
1960	37.8 C (100.0 F)
1961	37.2 C (99.0 F)
1962	35.6 C (96.1 F)
1963	38.9 C (102.0 F)
1964	37.2 C (99.0 F)
1965	36.7 C (98.1 F)
1966	38.9 C (102.0 F)
1967	36.7 C (98.1 F)
1968	36.7 C (98.1 F)
1969	38.9 C (102.0 F)
1970	40.6 C (105.1 F)
1971	36.7 C (98.1 F)
1972	38.9 C (102.0 F)
1973	39.4 C (102.9 F)
1974	37.8 C (100.0 F)
1975	37.8 C (100.0 F)
1976	34.4 C (93.9 F)
1977	39.4 C (102.9 F)
1978	37.2 C (99.0 F)
1979	41.7 C (107.1 F)
1980	38.9 C (102.0 F)
1981	41.7 C (107.1 F)
1982	40.0 C (104.0 F)
1983	38.3 C (100.9 F)
1984	35.6 C (96.1 F)
1985	38.3 C (100.9 F)
1986	38.9 C (102.0 F)
1987	38.9 C (102.0 F)
1988	40.0 C (104.0 F)
1989	39.4 C (102.9 F)
1990	38.3 C (100.9 F)
1991	36.1 C (97.0 F)
1992	36.1 C (97.0 F)
1993	35.0 C (95.0 F)
1994	37.8 C (100.0 F)
1995	38.9 C (102.0 F)
1996	37.8 C (100.0 F)
1997	36.1 C (97.0 F)
1998	38.3 C (100.9 F)
1999	35.6 C (96.1 F)
2000	36.1 C (97.0 F)
2001	36.1 C (97.0 F)
2002	35.6 C (96.1 F)
2003	36.1 C (97.0 F)
2004	35.0 C (95.0 F)
2005	40.6 C (105.1 F)
2006	40.0 C (104.0 F)
2007	39.4 C (102.9 F)
2008	14.4 C (57.9 F)

Coldest night (TNn)

The coldest night of the year at Glenrock 5 ESE, 1941 to 2008. The record is -40.6 C (-41.1 F) in 1943, marked on the chart; the median year is -28.9 C (-20.0 F).

Coldest night (TNn) at Glenrock 5 ESE by year
Year	Coldest night (TNn)
1941	-30.0 C (-22.0 F)
1942	-31.1 C (-24.0 F)
1943	-40.6 C (-41.1 F)
1944	-28.9 C (-20.0 F)
1945	-27.2 C (-17.0 F)
1946	-25.6 C (-14.1 F)
1947	-30.6 C (-23.1 F)
1948	-19.4 C (-2.9 F)
1949	-35.0 C (-31.0 F)
1950	-33.3 C (-27.9 F)
1951	-28.9 C (-20.0 F)
1952	-28.9 C (-20.0 F)
1953	-24.4 C (-11.9 F)
1954	-27.8 C (-18.0 F)
1955	-27.2 C (-17.0 F)
1956	-33.3 C (-27.9 F)
1957	-30.0 C (-22.0 F)
1958	-26.1 C (-15.0 F)
1959	-35.6 C (-32.1 F)
1960	-30.6 C (-23.1 F)
1961	-26.7 C (-16.1 F)
1962	-33.3 C (-27.9 F)
1963	-36.7 C (-34.1 F)
1964	-35.6 C (-32.1 F)
1965	-27.8 C (-18.0 F)
1966	-28.9 C (-20.0 F)
1967	-28.9 C (-20.0 F)
1968	-28.9 C (-20.0 F)
1969	-23.3 C (-9.9 F)
1970	-26.1 C (-15.0 F)
1971	-25.0 C (-13.0 F)
1972	-36.7 C (-34.1 F)
1973	-29.4 C (-20.9 F)
1974	-31.7 C (-25.1 F)
1975	-26.7 C (-16.1 F)
1976	-25.6 C (-14.1 F)
1977	-27.8 C (-18.0 F)
1978	-33.3 C (-27.9 F)
1979	-23.3 C (-9.9 F)
1980	-30.6 C (-23.1 F)
1981	-26.1 C (-15.0 F)
1982	-31.1 C (-24.0 F)
1983	-36.1 C (-33.0 F)
1984	-33.3 C (-27.9 F)
1985	-32.8 C (-27.0 F)
1986	-25.6 C (-14.1 F)
1987	-26.1 C (-15.0 F)
1988	-26.1 C (-15.0 F)
1989	-33.3 C (-27.9 F)
1990	-40.0 C (-40.0 F)
1991	-23.3 C (-9.9 F)
1992	-27.2 C (-17.0 F)
1993	-30.0 C (-22.0 F)
1994	-23.3 C (-9.9 F)
1995	-25.0 C (-13.0 F)
1996	-31.1 C (-24.0 F)
1997	-26.7 C (-16.1 F)
1998	-30.6 C (-23.1 F)
1999	-17.8 C (0.0 F)
2000	-25.6 C (-14.1 F)
2001	-30.6 C (-23.1 F)
2002	-25.0 C (-13.0 F)
2003	-26.1 C (-15.0 F)
2004	-26.1 C (-15.0 F)
2005	-25.0 C (-13.0 F)
2006	-32.2 C (-26.0 F)
2007	-25.6 C (-14.1 F)
2008	-22.2 C (-8.0 F)

Wettest day (Rx1day)

The wettest day of the year at Glenrock 5 ESE, 1941 to 2008. The record is 99.6 mm (3.9 in) in 1971, marked on the chart; the median year is 29.0 mm (1.1 in).

Wettest day (Rx1day) at Glenrock 5 ESE by year
Year	Wettest day (Rx1day)
1941	31.8 mm (1.3 in)
1942	34.8 mm (1.4 in)
1943	38.4 mm (1.5 in)
1944	45.7 mm (1.8 in)
1945	94.0 mm (3.7 in)
1946	36.1 mm (1.4 in)
1947	42.7 mm (1.7 in)
1948	14.2 mm (0.6 in)
1949	24.4 mm (1.0 in)
1950	17.8 mm (0.7 in)
1951	36.8 mm (1.4 in)
1952	25.7 mm (1.0 in)
1953	39.9 mm (1.6 in)
1954	24.4 mm (1.0 in)
1955	24.6 mm (1.0 in)
1956	20.1 mm (0.8 in)
1957	24.9 mm (1.0 in)
1958	19.1 mm (0.8 in)
1959	27.9 mm (1.1 in)
1960	31.5 mm (1.2 in)
1961	25.9 mm (1.0 in)
1962	56.9 mm (2.2 in)
1963	55.4 mm (2.2 in)
1964	21.8 mm (0.9 in)
1965	48.0 mm (1.9 in)
1966	17.0 mm (0.7 in)
1967	38.4 mm (1.5 in)
1968	29.2 mm (1.1 in)
1969	49.0 mm (1.9 in)
1970	62.2 mm (2.4 in)
1971	99.6 mm (3.9 in)
1972	28.4 mm (1.1 in)
1973	51.3 mm (2.0 in)
1974	19.1 mm (0.8 in)
1975	32.8 mm (1.3 in)
1976	47.2 mm (1.9 in)
1977	38.1 mm (1.5 in)
1978	46.5 mm (1.8 in)
1979	27.9 mm (1.1 in)
1980	34.3 mm (1.4 in)
1981	27.9 mm (1.1 in)
1982	19.3 mm (0.8 in)
1983	28.7 mm (1.1 in)
1984	20.8 mm (0.8 in)
1985	19.1 mm (0.8 in)
1986	36.8 mm (1.4 in)
1987	33.0 mm (1.3 in)
1988	12.2 mm (0.5 in)
1989	35.1 mm (1.4 in)
1990	30.5 mm (1.2 in)
1991	54.6 mm (2.1 in)
1992	34.5 mm (1.4 in)
1993	33.0 mm (1.3 in)
1994	19.1 mm (0.8 in)
1995	43.2 mm (1.7 in)
1996	25.7 mm (1.0 in)
1997	27.9 mm (1.1 in)
1998	24.6 mm (1.0 in)
1999	27.9 mm (1.1 in)
2000	42.9 mm (1.7 in)
2001	13.5 mm (0.5 in)
2002	24.6 mm (1.0 in)
2003	37.6 mm (1.5 in)
2004	22.9 mm (0.9 in)
2005	22.1 mm (0.9 in)
2006	21.1 mm (0.8 in)
2007	5.8 mm (0.23 in)
2008	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Glenrock 5 ESE, 1941 to 2008. The record is 118.7 mm (4.7 in) in 1971, marked on the chart; the median year is 44.0 mm (1.7 in).

Wettest five days (Rx5day) at Glenrock 5 ESE by year
Year	Wettest five days (Rx5day)
1941	25.9 mm (1.0 in)
1942	59.9 mm (2.4 in)
1943	46.8 mm (1.8 in)
1944	59.1 mm (2.3 in)
1945	99.3 mm (3.9 in)
1946	56.7 mm (2.2 in)
1947	24.4 mm (1.0 in)
1948	19.6 mm (0.8 in)
1949	46.0 mm (1.8 in)
1950	29.3 mm (1.2 in)
1951	48.3 mm (1.9 in)
1952	62.0 mm (2.4 in)
1953	42.9 mm (1.7 in)
1954	26.1 mm (1.0 in)
1955	52.3 mm (2.1 in)
1956	34.8 mm (1.4 in)
1957	34.7 mm (1.4 in)
1958	29.1 mm (1.1 in)
1959	52.3 mm (2.1 in)
1960	44.0 mm (1.7 in)
1961	39.6 mm (1.6 in)
1962	78.7 mm (3.1 in)
1963	68.8 mm (2.7 in)
1964	45.1 mm (1.8 in)
1965	50.6 mm (2.0 in)
1966	26.2 mm (1.0 in)
1967	79.5 mm (3.1 in)
1968	51.6 mm (2.0 in)
1969	71.1 mm (2.8 in)
1970	94.0 mm (3.7 in)
1971	118.7 mm (4.7 in)
1972	68.0 mm (2.7 in)
1973	88.6 mm (3.5 in)
1974	25.4 mm (1.0 in)
1975	38.6 mm (1.5 in)
1976	51.3 mm (2.0 in)
1977	80.0 mm (3.1 in)
1978	83.9 mm (3.3 in)
1979	34.5 mm (1.4 in)
1980	39.8 mm (1.6 in)
1981	31.2 mm (1.2 in)
1982	38.4 mm (1.5 in)
1983	35.5 mm (1.4 in)
1984	35.3 mm (1.4 in)
1985	24.1 mm (0.9 in)
1986	55.6 mm (2.2 in)
1987	33.0 mm (1.3 in)
1988	15.5 mm (0.6 in)
1989	55.7 mm (2.2 in)
1990	44.4 mm (1.7 in)
1991	96.7 mm (3.8 in)
1992	41.9 mm (1.6 in)
1993	43.4 mm (1.7 in)
1994	42.2 mm (1.7 in)
1995	66.9 mm (2.6 in)
1996	46.6 mm (1.8 in)
1997	28.9 mm (1.1 in)
1998	43.9 mm (1.7 in)
1999	46.7 mm (1.8 in)
2000	63.2 mm (2.5 in)
2001	27.9 mm (1.1 in)
2002	24.6 mm (1.0 in)
2003	41.4 mm (1.6 in)
2004	22.9 mm (0.9 in)
2005	48.8 mm (1.9 in)
2006	23.1 mm (0.9 in)
2007	3.4 mm (0.13 in)
2008	0.0 mm (0.00 in)

Longest dry spell (CDD)

The longest dry spell of the year at Glenrock 5 ESE, 1941 to 2008. The record is 77 days in 1974, marked on the chart; the median year is 34 days.

Longest dry spell (CDD) at Glenrock 5 ESE by year
Year	Longest dry spell (CDD)
1941	17 days
1942	34 days
1943	25 days
1944	33 days
1945	22 days
1946	32 days
1947	30 days
1948	31 days
1949	36 days
1950	52 days
1951	54 days
1952	33 days
1953	30 days
1954	30 days
1955	27 days
1956	31 days
1957	34 days
1958	38 days
1959	31 days
1960	45 days
1961	44 days
1962	35 days
1963	37 days
1964	34 days
1965	50 days
1966	35 days
1967	31 days
1968	31 days
1969	41 days
1970	32 days
1971	34 days
1972	28 days
1973	39 days
1974	77 days
1975	29 days
1976	33 days
1977	39 days
1978	23 days
1979	26 days
1980	37 days
1981	27 days
1982	30 days
1983	42 days
1984	36 days
1985	38 days
1986	36 days
1987	44 days
1988	36 days
1989	26 days
1990	30 days
1991	34 days
1992	37 days
1993	25 days
1994	43 days
1995	29 days
1996	44 days
1997	27 days
1998	55 days
1999	50 days
2000	29 days
2001	33 days
2002	39 days
2003	29 days
2004	41 days
2005	47 days
2006	51 days
2007	30 days
2008	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.

Frost Dates and Growing Season

43 years with a frost

Across 43 years with a frost, the median last spring frost at Glenrock 5 ESE falls on 14 May and the median first autumn frost on 19 September, which leaves a median of 127 days between them.

Fitted over all years, the growing season changes by +2.6 days per decade at this station.

Frost dates and growing season at Glenrock 5 ESE
Measure	Median, all years	Earliest period	Recent period (1960 to 1999)	Recent against earliest	Fitted trend
Last spring frost	14 May	n/a	14 May	n/a	-2.3 days per decade
First autumn frost	19 September	n/a	20 September	n/a	+0.3 days per decade
Growing days	127 days	n/a	132 days	n/a	+2.6 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

56 years, 1942 to 2002

A day with at least 30.9 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 96.6 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Glenrock 5 ESE: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	30.9 mm (1.2 in)
5 years	44.4 mm (1.7 in)
10 years	54.8 mm (2.2 in)
25 years	69.8 mm (2.7 in)
50 years	82.5 mm (3.2 in)
100 years	96.6 mm (3.8 in)	Longer than the 56 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, 56 years of values from 1942 to 2002.

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: 99.6 mm (3.9 in) in 1971; 94.0 mm (3.7 in) in 1945; 62.2 mm (2.4 in) in 1970.

Station Changes

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

Download the Data

Data for Glenrock 5 ESE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Glenrock 5 ESE 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 2026-10-15 (15 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).