Monument 2 Weather Records (USC00355711)

Record envelope, standing records and threshold days for Monument 2 (USC00355711), Oregon, United States, with 60 years of record.

Key Facts for Monument 2

Monument 2 (USC00355711) is a weather station in Oregon, United States at 44.82 latitude and -119.42 longitude, 608 m (1,995 ft) above sea level.
The station reports from 1961 to 2020, 60 years of record.
1,464 records set at Monument 2 still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Monument 2 set a daily record high maximum temperature of 42.2 C (108.0 F) on 31 July 2020.

About the Station

Location: Oregon, United States, 44.82 latitude, -119.42 longitude.
Elevation: 608 m (1,995 ft).
Period of record: 1961 to 2020, 60 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 Monument 2. 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 Monument 2, 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)	-32.2 C (-26.0 F)	n/a	n/a
Feb	23.3 C (73.9 F)	-29.4 C (-20.9 F)	n/a	n/a
Mar	28.3 C (82.9 F)	-12.2 C (10.0 F)	n/a	n/a
Apr	35.0 C (95.0 F)	-9.4 C (15.1 F)	n/a	n/a
May	38.9 C (102.0 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	43.3 C (109.9 F)	-1.1 C (30.0 F)	n/a	n/a
Jul	46.7 C (116.1 F)	1.7 C (35.1 F)	n/a	n/a
Aug	46.1 C (115.0 F)	-0.6 C (30.9 F)	n/a	n/a
Sep	42.8 C (109.0 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	35.6 C (96.1 F)	-16.1 C (3.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-26.1 C (-15.0 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-31.7 C (-25.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Monument 2 still stand. 1962 holds the most, with 54.

Standing records at Monument 2 by the year they were set
Year set	Standing records
1961	28
1962	54
1963	33
1964	33
1965	29
1966	30
1967	26
1968	36
1969	36
1970	35
1971	33
1972	41
1973	26
1974	22
1975	36
1976	15
1977	33
1978	23
1979	34
1980	29
1981	24
1982	29
1983	35
1984	20
1985	46
1986	36
1987	40
1988	23
1989	20
1990	23
1991	13
1992	28
1993	26
1994	12
1995	27
1996	24
1997	14
1998	14
1999	23
2000	9
2001	12
2002	31
2003	28
2004	16
2005	7
2006	21
2007	26
2008	22
2009	17
2010	17
2011	19
2012	30
2013	27
2014	8
2015	8
2016	32
2017	24
2020	1

All-Time Record Progression

3 new records

3 all-time records were set at Monument 2 between 12 July 2002 and 2 August 2009. Each dot is a new record.

When Monument 2 set new all-time records
Date	Kind	Detail
2002-07-12	Record high maximum temperature	Record high maximum temperature 46.1 C (115.0 F)
2007-07-05	Record high maximum temperature	Record high maximum temperature 46.7 C (116.1 F)
2009-08-02	Record high minimum temperature	Record high minimum temperature 21.1 C (70.0 F)

Wettest Day of Each Month

Jun: 42.2 mm (1.7 in)

The wettest day on record for each calendar month at Monument 2. The most was 42.2 mm (1.7 in) on 9 June 1969.

Record daily precipitation for each month at Monument 2
Month	Record daily precipitation (mm)	Date
Jan	40.9 mm (1.6 in)	10 January 1989
Feb	22.1 mm (0.9 in)	23 February 1986
Mar	29.5 mm (1.2 in)	4 March 1983
Apr	31.0 mm (1.2 in)	1 April 1978
May	28.7 mm (1.1 in)	21 May 1986
Jun	42.2 mm (1.7 in)	9 June 1969
Jul	34.3 mm (1.4 in)	25 July 1991
Aug	33.0 mm (1.3 in)	28 August 1996
Sep	18.5 mm (0.7 in)	7 September 1973
Oct	31.8 mm (1.3 in)	1 October 2005
Nov	31.8 mm (1.3 in)	19 November 1996
Dec	27.2 mm (1.1 in)	25 December 1964

Period of Record Coverage

1961 to 2020

58 years of record at Monument 2, 1961 to 2020. 33 years have data for under 90 percent of days and are left out of rankings: 1961, 1964, 1988, 1989, 1990, 1991, 1992, 1993 and others.

Days with data per year at Monument 2
Year	Days with data	Share of year	Complete
1961	323	88%	No
1962	362	99%	Yes
1963	333	91%	Yes
1964	301	82%	No
1965	335	92%	Yes
1966	362	99%	Yes
1967	356	98%	Yes
1968	362	99%	Yes
1969	363	99%	Yes
1970	362	99%	Yes
1971	361	99%	Yes
1972	364	99%	Yes
1973	364	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	344	94%	Yes
1977	361	99%	Yes
1978	363	99%	Yes
1979	352	96%	Yes
1980	361	99%	Yes
1981	365	100%	Yes
1982	360	99%	Yes
1983	363	99%	Yes
1984	364	99%	Yes
1985	357	98%	Yes
1986	354	97%	Yes
1987	363	99%	Yes
1988	329	90%	No
1989	273	75%	No
1990	248	68%	No
1991	247	68%	No
1992	237	65%	No
1993	245	67%	No
1994	238	65%	No
1995	243	67%	No
1996	241	66%	No
1997	241	66%	No
1998	243	67%	No
1999	262	72%	No
2000	304	83%	No
2001	305	84%	No
2002	300	82%	No
2003	301	82%	No
2004	312	85%	No
2005	310	85%	No
2006	262	72%	No
2007	250	68%	No
2008	207	57%	No
2009	241	66%	No
2010	229	63%	No
2011	202	55%	No
2012	198	54%	No
2013	228	62%	No
2014	102	28%	No
2015	67	18%	No
2016	267	73%	No
2017	258	71%	No
2020	29	8%	No

Latest Records

Latest records at Monument 2
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 2020	Monument 2, US	daily high max	42.2 C (108.0 F)	0.5 C (0.9 F)	28 years	15 of 100 (Routine)
27 November 2017	Monument 2, US	daily high max	19.4 C (66.9 F)	6.6 C (11.9 F)	55 years	34 of 100 (Routine)
26 November 2017	Monument 2, US	daily high max	18.3 C (64.9 F)	2.7 C (4.9 F)	55 years	26 of 100 (Routine)
24 November 2017	Monument 2, US	daily high max	20.6 C (69.1 F)	2.8 C (5.0 F)	27 years	18 of 100 (Routine)
23 November 2017	Monument 2, US	daily high min	7.8 C (46.0 F)	5.0 C (9.0 F)	54 years	32 of 100 (Routine)
23 November 2017	Monument 2, US	daily high max	18.3 C (64.9 F)	1.1 C (2.0 F)	6 years	8 of 100 (Routine)
22 November 2017	Monument 2, US	daily high min	7.8 C (46.0 F)	5.6 C (10.1 F)	51 years	32 of 100 (Routine)
7 November 2017	Monument 2, US	daily low min (Tie)	-7.2 C (19.0 F)	tie	56 years	5 of 100 (Routine)
5 November 2017	Monument 2, US	daily low max	6.1 C (43.0 F)	2.2 C (4.0 F)	44 years	22 of 100 (Routine)
14 October 2017	Monument 2, US	daily low max	9.4 C (48.9 F)	2.3 C (4.1 F)	55 years	24 of 100 (Routine)
13 October 2017	Monument 2, US	daily low max	7.2 C (45.0 F)	2.8 C (5.0 F)	48 years	23 of 100 (Routine)
1 October 2017	Monument 2, US	daily high min	8.9 C (48.0 F)	1.1 C (2.0 F)	20 years	13 of 100 (Routine)
23 August 2017	Monument 2, US	daily high min	18.3 C (64.9 F)	2.7 C (4.9 F)	56 years	29 of 100 (Routine)
12 August 2017	Monument 2, US	daily high min	17.8 C (64.0 F)	1.7 C (3.1 F)	52 years	25 of 100 (Routine)
15 July 2017	Monument 2, US	daily high min	18.3 C (64.9 F)	1.1 C (2.0 F)	8 years	10 of 100 (Routine)
20 June 2017	Monument 2, US	daily high max	37.8 C (100.0 F)	0.6 C (1.1 F)	32 years	15 of 100 (Routine)
10 June 2017	Monument 2, US	daily low min	1.1 C (34.0 F)	1.1 C (2.0 F)	32 years	17 of 100 (Routine)
8 June 2017	Monument 2, US	daily high min	15.0 C (59.0 F)	0.6 C (1.1 F)	40 years	18 of 100 (Routine)
13 May 2017	Monument 2, US	daily low max (Tie)	12.2 C (54.0 F)	tie	18 years	2 of 100 (Routine)
11 May 2017	Monument 2, US	daily high min	11.7 C (53.1 F)	2.8 C (5.0 F)	32 years	21 of 100 (Routine)

Climate Trend

24 complete years, 1962 to 2005

One stripe for each of 24 complete years at Monument 2, 1962 to 2005. Blue stripes are years cooler than the station's own mean of 10.2 C (50.4 F); red stripes are warmer. The coolest year was 1985, at 8.5 C (47.3 F), and the warmest was 2004, at 11.4 C (52.6 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Monument 2 as warming stripes, 1962 to 2005
Year	Annual mean temperature	Difference from the station mean
1962	9.5 C	-0.73 C
1966	10.7 C	+0.50 C
1967	11.0 C	+0.73 C
1968	10.7 C	+0.52 C
1969	10.0 C	-0.25 C
1970	10.3 C	+0.12 C
1971	9.8 C	-0.41 C
1972	9.6 C	-0.64 C
1973	10.5 C	+0.29 C
1974	10.4 C	+0.16 C
1975	9.8 C	-0.43 C
1976	9.9 C	-0.32 C
1977	10.1 C	-0.10 C
1978	9.8 C	-0.44 C
1980	10.2 C	-0.02 C
1981	10.9 C	+0.63 C
1982	9.5 C	-0.76 C
1983	10.2 C	-0.02 C
1984	9.7 C	-0.48 C
1985	8.5 C	-1.71 C
1986	11.2 C	+0.99 C
1987	11.0 C	+0.82 C
2004	11.4 C	+1.21 C
2005	10.6 C	+0.36 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

1961 to 2020

Yearly extremes at Monument 2: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.7 C (116.1 F)	2007	41.1 C (106.0 F)	58
Coldest night (TNn)	-32.2 C (-26.0 F)	1962	-19.4 C (-2.9 F)	58
Wettest day (Rx1day)	42.2 mm (1.7 in)	1969	19.2 mm (0.8 in)	58
Wettest five days (Rx5day)	74.7 mm (2.9 in)	1964	34.8 mm (1.4 in)	57
Longest dry spell (CDD)	87 days	1974	38 days	58

Hottest day (TXx)

The hottest day of the year at Monument 2, 1961 to 2020. The record is 46.7 C (116.1 F) in 2007, marked on the chart; the median year is 41.1 C (106.0 F).

Hottest day (TXx) at Monument 2 by year
Year	Hottest day (TXx)
1961	44.4 C (111.9 F)
1962	38.3 C (100.9 F)
1963	36.7 C (98.1 F)
1964	38.3 C (100.9 F)
1965	37.2 C (99.0 F)
1966	38.9 C (102.0 F)
1967	41.1 C (106.0 F)
1968	41.1 C (106.0 F)
1969	39.4 C (102.9 F)
1970	40.0 C (104.0 F)
1971	41.7 C (107.1 F)
1972	43.3 C (109.9 F)
1973	38.3 C (100.9 F)
1974	38.9 C (102.0 F)
1975	40.6 C (105.1 F)
1976	38.3 C (100.9 F)
1977	41.1 C (106.0 F)
1978	40.0 C (104.0 F)
1979	42.2 C (108.0 F)
1980	40.0 C (104.0 F)
1981	41.7 C (107.1 F)
1982	41.1 C (106.0 F)
1983	40.6 C (105.1 F)
1984	39.4 C (102.9 F)
1985	40.6 C (105.1 F)
1986	43.3 C (109.9 F)
1987	40.6 C (105.1 F)
1988	41.7 C (107.1 F)
1989	38.3 C (100.9 F)
1990	42.8 C (109.0 F)
1991	39.4 C (102.9 F)
1992	41.7 C (107.1 F)
1993	37.2 C (99.0 F)
1994	42.8 C (109.0 F)
1995	39.4 C (102.9 F)
1996	41.7 C (107.1 F)
1997	40.0 C (104.0 F)
1998	42.8 C (109.0 F)
1999	40.0 C (104.0 F)
2000	40.0 C (104.0 F)
2001	41.7 C (107.1 F)
2002	46.1 C (115.0 F)
2003	46.1 C (115.0 F)
2004	41.1 C (106.0 F)
2005	42.8 C (109.0 F)
2006	43.9 C (111.0 F)
2007	46.7 C (116.1 F)
2008	43.3 C (109.9 F)
2009	46.1 C (115.0 F)
2010	42.2 C (108.0 F)
2011	41.1 C (106.0 F)
2012	43.3 C (109.9 F)
2013	46.7 C (116.1 F)
2014	43.3 C (109.9 F)
2015	43.3 C (109.9 F)
2016	41.1 C (106.0 F)
2017	40.6 C (105.1 F)
2020	42.2 C (108.0 F)

Coldest night (TNn)

The coldest night of the year at Monument 2, 1961 to 2020. The record is -32.2 C (-26.0 F) in 1962, marked on the chart; the median year is -19.4 C (-2.9 F).

Coldest night (TNn) at Monument 2 by year
Year	Coldest night (TNn)
1961	-21.1 C (-6.0 F)
1962	-32.2 C (-26.0 F)
1963	-23.3 C (-9.9 F)
1964	-23.3 C (-9.9 F)
1965	-15.6 C (3.9 F)
1966	-14.4 C (6.1 F)
1967	-17.8 C (0.0 F)
1968	-16.7 C (1.9 F)
1969	-21.1 C (-6.0 F)
1970	-19.4 C (-2.9 F)
1971	-15.6 C (3.9 F)
1972	-28.3 C (-18.9 F)
1973	-18.3 C (-0.9 F)
1974	-20.6 C (-5.1 F)
1975	-13.9 C (7.0 F)
1976	-16.7 C (1.9 F)
1977	-23.3 C (-9.9 F)
1978	-23.3 C (-9.9 F)
1979	-28.3 C (-18.9 F)
1980	-21.1 C (-6.0 F)
1981	-10.6 C (12.9 F)
1982	-23.3 C (-9.9 F)
1983	-26.7 C (-16.1 F)
1984	-22.2 C (-8.0 F)
1985	-29.4 C (-20.9 F)
1986	-10.0 C (14.0 F)
1987	-22.2 C (-8.0 F)
1988	-21.1 C (-6.0 F)
1989	-27.8 C (-18.0 F)
1990	-31.7 C (-25.1 F)
1991	-18.9 C (-2.0 F)
1992	-19.4 C (-2.9 F)
1993	-25.0 C (-13.0 F)
1994	-20.6 C (-5.1 F)
1995	-16.1 C (3.0 F)
1996	-22.2 C (-8.0 F)
1997	-13.3 C (8.1 F)
1998	-21.1 C (-6.0 F)
1999	-15.6 C (3.9 F)
2000	-11.1 C (12.0 F)
2001	-11.1 C (12.0 F)
2002	-16.1 C (3.0 F)
2003	-14.4 C (6.1 F)
2004	-19.4 C (-2.9 F)
2005	-15.0 C (5.0 F)
2006	-16.7 C (1.9 F)
2007	-16.1 C (3.0 F)
2008	-21.1 C (-6.0 F)
2009	-21.7 C (-7.1 F)
2010	-17.2 C (1.0 F)
2011	-16.1 C (3.0 F)
2012	-11.1 C (12.0 F)
2013	-27.8 C (-18.0 F)
2014	-22.8 C (-9.0 F)
2015	-6.1 C (21.0 F)
2016	-22.2 C (-8.0 F)
2017	-16.1 C (3.0 F)
2020	5.6 C (42.1 F)

Wettest day (Rx1day)

The wettest day of the year at Monument 2, 1961 to 2020. The record is 42.2 mm (1.7 in) in 1969, marked on the chart; the median year is 19.2 mm (0.8 in).

Wettest day (Rx1day) at Monument 2 by year
Year	Wettest day (Rx1day)
1961	16.5 mm (0.6 in)
1962	16.8 mm (0.7 in)
1963	18.8 mm (0.7 in)
1964	27.2 mm (1.1 in)
1965	21.1 mm (0.8 in)
1966	17.8 mm (0.7 in)
1967	17.8 mm (0.7 in)
1968	16.5 mm (0.6 in)
1969	42.2 mm (1.7 in)
1970	16.3 mm (0.6 in)
1971	19.1 mm (0.8 in)
1972	27.9 mm (1.1 in)
1973	18.5 mm (0.7 in)
1974	13.2 mm (0.5 in)
1975	14.0 mm (0.6 in)
1976	25.7 mm (1.0 in)
1977	30.2 mm (1.2 in)
1978	31.0 mm (1.2 in)
1979	19.3 mm (0.8 in)
1980	15.2 mm (0.6 in)
1981	21.6 mm (0.9 in)
1982	18.3 mm (0.7 in)
1983	29.5 mm (1.2 in)
1984	32.3 mm (1.3 in)
1985	16.0 mm (0.6 in)
1986	28.7 mm (1.1 in)
1987	18.0 mm (0.7 in)
1988	22.9 mm (0.9 in)
1989	40.9 mm (1.6 in)
1990	25.4 mm (1.0 in)
1991	34.3 mm (1.4 in)
1992	26.4 mm (1.0 in)
1993	21.8 mm (0.9 in)
1994	17.8 mm (0.7 in)
1995	28.2 mm (1.1 in)
1996	33.0 mm (1.3 in)
1997	22.9 mm (0.9 in)
1998	16.0 mm (0.6 in)
1999	23.1 mm (0.9 in)
2000	20.6 mm (0.8 in)
2001	16.0 mm (0.6 in)
2002	18.3 mm (0.7 in)
2003	24.4 mm (1.0 in)
2004	23.4 mm (0.9 in)
2005	31.8 mm (1.3 in)
2006	18.8 mm (0.7 in)
2007	17.3 mm (0.7 in)
2008	11.9 mm (0.5 in)
2009	26.2 mm (1.0 in)
2010	16.8 mm (0.7 in)
2011	26.9 mm (1.1 in)
2012	15.2 mm (0.6 in)
2013	15.2 mm (0.6 in)
2014	13.0 mm (0.5 in)
2015	21.6 mm (0.9 in)
2016	14.2 mm (0.6 in)
2017	14.7 mm (0.6 in)
2020	0.0 mm (0.00 in)

Wettest five days (Rx5day)

The wettest five days of the year at Monument 2, 1961 to 2020. The record is 74.7 mm (2.9 in) in 1964, marked on the chart; the median year is 34.8 mm (1.4 in).

Wettest five days (Rx5day) at Monument 2 by year
Year	Wettest five days (Rx5day)
1961	41.7 mm (1.6 in)
1962	38.4 mm (1.5 in)
1963	35.4 mm (1.4 in)
1964	74.7 mm (2.9 in)
1965	42.5 mm (1.7 in)
1966	29.5 mm (1.2 in)
1967	30.7 mm (1.2 in)
1968	43.2 mm (1.7 in)
1969	51.6 mm (2.0 in)
1970	44.2 mm (1.7 in)
1971	42.1 mm (1.7 in)
1972	29.1 mm (1.1 in)
1973	34.6 mm (1.4 in)
1974	26.2 mm (1.0 in)
1975	26.7 mm (1.1 in)
1976	45.5 mm (1.8 in)
1977	39.1 mm (1.5 in)
1978	35.3 mm (1.4 in)
1979	25.2 mm (1.0 in)
1980	34.8 mm (1.4 in)
1981	40.5 mm (1.6 in)
1982	31.3 mm (1.2 in)
1983	49.3 mm (1.9 in)
1984	42.0 mm (1.7 in)
1985	21.7 mm (0.9 in)
1986	41.4 mm (1.6 in)
1987	25.6 mm (1.0 in)
1988	46.0 mm (1.8 in)
1989	45.0 mm (1.8 in)
1990	50.5 mm (2.0 in)
1991	34.3 mm (1.4 in)
1992	35.0 mm (1.4 in)
1993	33.5 mm (1.3 in)
1994	31.3 mm (1.2 in)
1995	42.2 mm (1.7 in)
1996	44.5 mm (1.8 in)
1997	41.7 mm (1.6 in)
1998	27.2 mm (1.1 in)
1999	43.4 mm (1.7 in)
2000	29.5 mm (1.2 in)
2001	19.3 mm (0.8 in)
2002	25.9 mm (1.0 in)
2003	31.6 mm (1.2 in)
2004	54.9 mm (2.2 in)
2005	42.6 mm (1.7 in)
2006	39.1 mm (1.5 in)
2007	22.4 mm (0.9 in)
2008	17.5 mm (0.7 in)
2009	30.0 mm (1.2 in)
2010	36.1 mm (1.4 in)
2011	14.3 mm (0.6 in)
2012	12.9 mm (0.5 in)
2013	0.0 mm (0.00 in)
2014	12.4 mm (0.5 in)
2015	15.2 mm (0.6 in)
2016	15.5 mm (0.6 in)
2017	14.7 mm (0.6 in)
2020	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Monument 2, 1961 to 2020. The record is 87 days in 1974, marked on the chart; the median year is 38 days.

Longest dry spell (CDD) at Monument 2 by year
Year	Longest dry spell (CDD)
1961	31 days
1962	64 days
1963	27 days
1964	35 days
1965	40 days
1966	60 days
1967	65 days
1968	30 days
1969	79 days
1970	37 days
1971	23 days
1972	51 days
1973	33 days
1974	87 days
1975	35 days
1976	32 days
1977	40 days
1978	62 days
1979	56 days
1980	51 days
1981	67 days
1982	20 days
1983	38 days
1984	31 days
1985	52 days
1986	54 days
1987	40 days
1988	81 days
1989	21 days
1990	52 days
1991	64 days
1992	29 days
1993	46 days
1994	45 days
1995	26 days
1996	26 days
1997	34 days
1998	35 days
1999	55 days
2000	44 days
2001	22 days
2002	34 days
2003	40 days
2004	24 days
2005	60 days
2006	38 days
2007	35 days
2008	36 days
2009	24 days
2010	50 days
2011	5 days
2012	4 days
2013	5 days
2014	11 days
2015	6 days
2016	53 days
2017	47 days
2020	1 day

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

24 years with a frost

Across 24 years with a frost, the median last spring frost at Monument 2 falls on 20 May and the median first autumn frost on 21 September, which leaves a median of 122 days between them.

Frost dates and growing season at Monument 2
Measure	Median, all years	Earliest period	Recent period (1962 to 2005)	Recent against earliest	Fitted trend
Last spring frost	20 May	n/a	20 May	n/a	n/a
First autumn frost	21 September	n/a	21 September	n/a	n/a
Growing days	122 days	n/a	122 days	n/a	n/a

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

43 years, 1962 to 2007

A day with at least 21.2 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 49.6 mm (2.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Monument 2: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	21.2 mm (0.8 in)
5 years	27.6 mm (1.1 in)
10 years	32.2 mm (1.3 in)
25 years	38.7 mm (1.5 in)
50 years	44.0 mm (1.7 in)	Longer than the 43 years of record
100 years	49.6 mm (2.0 in)	Longer than the 43 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, 43 years of values from 1962 to 2007.

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: 42.2 mm (1.7 in) in 1969; 40.9 mm (1.6 in) in 1989; 34.3 mm (1.4 in) in 1991.

Download the Data

Data for Monument 2 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Monument 2 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).