W Union 2 Weather Records (USC00469458)

Record envelope, standing records and threshold days for W Union 2 (USC00469458), West Virginia, United States, with 56 years of record.

Key Facts for W Union 2

W Union 2 (USC00469458) is a weather station in West Virginia, United States at 39.29 latitude and -80.77 longitude, 246 m (806 ft) above sea level.
The station reports from 1971 to 2026, 56 years of record.
1,464 records set at W Union 2 still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
W Union 2 set a daily record high minimum temperature of 21.1 C (70.0 F) on 19 August 2026 (provisional).

Provisional Records

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

About the Station

Location: West Virginia, United States, 39.29 latitude, -80.77 longitude.
Elevation: 246 m (806 ft).
Period of record: 1971 to 2026, 56 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

4 days at or beyond a record

The band shows the record high and record low for each calendar day at W Union 2. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at W Union 2, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	24.4 C (75.9 F)	-36.1 C (-33.0 F)	15.6 C (60.1 F)	-21.7 C (-7.1 F)
Feb	27.2 C (81.0 F)	-27.2 C (-17.0 F)	18.9 C (66.0 F)	-19.4 C (-2.9 F)
Mar	30.6 C (87.1 F)	-21.7 C (-7.1 F)	30.0 C (86.0 F)	-9.4 C (15.1 F)
Apr	32.2 C (90.0 F)	-9.4 C (15.1 F)	31.1 C (88.0 F)	0.0 C (32.0 F)
May	33.3 C (91.9 F)	-3.9 C (25.0 F)	n/a	n/a
Jun	36.1 C (97.0 F)	0.0 C (32.0 F)	32.8 C (91.0 F)	10.0 C (50.0 F)
Jul	39.4 C (102.9 F)	3.3 C (37.9 F)	36.7 C (98.1 F)	13.3 C (55.9 F)
Aug	38.3 C (100.9 F)	4.4 C (39.9 F)	32.8 C (91.0 F)	11.7 C (53.1 F)
Sep	36.7 C (98.1 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-7.8 C (18.0 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-13.9 C (7.0 F)	n/a	n/a
Dec	25.6 C (78.1 F)	-27.8 C (-18.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at W Union 2 still stand. 2024 holds the most, with 58.

Standing records at W Union 2 by the year they were set
Year set	Standing records
1971	28
1972	36
1973	34
1974	33
1975	24
1976	44
1977	41
1978	24
1979	36
1980	27
1981	23
1982	35
1983	37
1984	31
1985	6
1987	12
1988	57
1989	33
1990	26
1991	43
1992	20
1993	25
1994	17
1995	17
1996	37
1997	33
1998	18
1999	22
2000	26
2001	20
2002	36
2003	5
2004	13
2005	16
2006	17
2007	47
2008	21
2009	15
2010	15
2011	20
2012	33
2013	18
2014	22
2015	40
2016	36
2017	29
2018	37
2019	16
2020	19
2021	15
2022	8
2023	17
2024	58
2025	25
2026	21

All-Time Record Progression

2 new records

2 all-time records were set at W Union 2 between 24 July 2022 and 11 August 2022. Each dot is a new record.

When W Union 2 set new all-time records
Date	Kind	Detail
2022-07-24	Record high minimum temperature	Record high minimum temperature 25.0 C (77.0 F)
2022-08-11	Record daily precipitation	Record daily precipitation 113.5 mm (4.5 in)

Wettest Day of Each Month

Aug: 113.5 mm (4.5 in)

The wettest day on record for each calendar month at W Union 2. The most was 113.5 mm (4.5 in) on 11 August 2022.

Record daily precipitation for each month at W Union 2
Month	Record daily precipitation (mm)	Date
Jan	55.4 mm (2.2 in)	11 January 1974
Feb	69.9 mm (2.8 in)	19 February 2000
Mar	50.0 mm (2.0 in)	2 March 1997
Apr	57.7 mm (2.3 in)	25 April 1989
May	71.9 mm (2.8 in)	12 May 1974
Jun	75.7 mm (3.0 in)	4 June 2008
Jul	86.4 mm (3.4 in)	8 July 2001
Aug	113.5 mm (4.5 in)	11 August 2022
Sep	111.3 mm (4.4 in)	13 September 1971
Oct	61.0 mm (2.4 in)	20 October 2006
Nov	60.2 mm (2.4 in)	26 November 1999
Dec	72.4 mm (2.9 in)	1 December 2010

Period of Record Coverage

1971 to 2026

55 years of record at W Union 2, 1971 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1971, 1985, 1987, 2022, 2023, 2024, 2025, 2026.

Days with data per year at W Union 2
Year	Days with data	Share of year	Complete
1971	245	67%	No
1972	365	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	366	100%	Yes
1977	363	99%	Yes
1978	364	100%	Yes
1979	333	91%	Yes
1980	366	100%	Yes
1981	363	99%	Yes
1982	362	99%	Yes
1983	362	99%	Yes
1984	366	100%	Yes
1985	59	16%	No
1987	152	42%	No
1988	362	99%	Yes
1989	338	93%	Yes
1990	365	100%	Yes
1991	364	100%	Yes
1992	363	99%	Yes
1993	362	99%	Yes
1994	361	99%	Yes
1995	364	100%	Yes
1996	364	99%	Yes
1997	365	100%	Yes
1998	363	99%	Yes
1999	360	99%	Yes
2000	359	98%	Yes
2001	364	100%	Yes
2002	365	100%	Yes
2003	359	98%	Yes
2004	364	99%	Yes
2005	363	99%	Yes
2006	363	99%	Yes
2007	363	99%	Yes
2008	364	99%	Yes
2009	334	92%	Yes
2010	364	100%	Yes
2011	364	100%	Yes
2012	363	99%	Yes
2013	362	99%	Yes
2014	364	100%	Yes
2015	356	98%	Yes
2016	362	99%	Yes
2017	352	96%	Yes
2018	357	98%	Yes
2019	352	96%	Yes
2020	344	94%	Yes
2021	342	94%	Yes
2022	256	70%	No
2023	239	65%	No
2024	328	90%	No
2025	288	79%	No
2026	203	56%	No

Latest Records

Latest records at W Union 2
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 August 2026	W Union 2, US	daily high min (Provisional)	21.1 C (70.0 F)	0.5 C (0.9 F)	8 years	8 of 100 (Routine)
22 July 2026	W Union 2, US	daily rain	70.6 mm (2.8 in)	31.7 mm (1.2 in)	48 years	44 of 100 (Notable)
20 July 2026	W Union 2, US	daily high min	23.3 C (73.9 F)	0.5 C (0.9 F)	0 years	6 of 100 (Routine)
19 July 2026	W Union 2, US	daily high min	22.8 C (73.0 F)	1.7 C (3.1 F)	20 years	15 of 100 (Routine)
13 July 2026	W Union 2, US	daily high min	22.2 C (72.0 F)	0.5 C (0.9 F)	0 years	6 of 100 (Routine)
12 July 2026	W Union 2, US	daily high min	22.2 C (72.0 F)	0.5 C (0.9 F)	0 years	6 of 100 (Routine)
11 July 2026	W Union 2, US	daily high min (Tie)	21.1 C (70.0 F)	tie	36 years	3 of 100 (Routine)
10 July 2026	W Union 2, US	daily high min	22.2 C (72.0 F)	0.5 C (0.9 F)	44 years	19 of 100 (Routine)
7 July 2026	W Union 2, US	daily high min (Tie)	21.7 C (71.1 F)	tie	3 years	1 of 100 (Routine)
4 July 2026	W Union 2, US	daily high max	36.7 C (98.1 F)	3.9 C (7.0 F)	24 years	25 of 100 (Routine)
4 July 2026	W Union 2, US	daily high min	22.8 C (73.0 F)	0.6 C (1.1 F)	3 years	6 of 100 (Routine)
2 July 2026	W Union 2, US	daily high min	22.2 C (72.0 F)	2.2 C (4.0 F)	55 years	27 of 100 (Routine)
29 June 2026	W Union 2, US	daily high min (Tie)	21.1 C (70.0 F)	tie	27 years	3 of 100 (Routine)
18 June 2026	W Union 2, US	daily rain	59.2 mm (2.3 in)	35.1 mm (1.4 in)	11 years	39 of 100 (Notable)
13 June 2026	W Union 2, US	daily high min	21.1 C (70.0 F)	1.7 C (3.1 F)	20 years	15 of 100 (Routine)
12 June 2026	W Union 2, US	daily high min	22.8 C (73.0 F)	3.4 C (6.1 F)	20 years	19 of 100 (Routine)
11 June 2026	W Union 2, US	daily high min	21.1 C (70.0 F)	1.1 C (2.0 F)	5 years	8 of 100 (Routine)
10 June 2026	W Union 2, US	daily high min	21.1 C (70.0 F)	1.1 C (2.0 F)	4 years	8 of 100 (Routine)
13 April 2026	W Union 2, US	daily high max (Tie)	29.4 C (84.9 F)	tie	48 years	4 of 100 (Routine)
5 April 2026	W Union 2, US	daily high min	12.8 C (55.0 F)	0.6 C (1.1 F)	0 years	6 of 100 (Routine)

Climate Trend

43 complete years, 1972 to 2021

One stripe for each of 43 complete years at W Union 2, 1972 to 2021. Blue stripes are years cooler than the station's own mean of 11.2 C (52.2 F); red stripes are warmer. The coolest year was 1997, at 9.4 C (49.0 F), and the warmest was 2016, at 12.5 C (54.5 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at W Union 2 as warming stripes, 1972 to 2021
Year	Annual mean temperature	Difference from the station mean
1972	10.7 C	-0.48 C
1973	12.1 C	+0.83 C
1974	11.2 C	+0.01 C
1975	11.4 C	+0.18 C
1976	9.9 C	-1.30 C
1977	10.6 C	-0.60 C
1980	10.4 C	-0.87 C
1981	10.1 C	-1.17 C
1982	11.0 C	-0.25 C
1983	10.7 C	-0.52 C
1984	10.8 C	-0.45 C
1988	10.4 C	-0.83 C
1990	12.1 C	+0.85 C
1991	11.8 C	+0.55 C
1992	10.6 C	-0.58 C
1993	10.7 C	-0.49 C
1994	10.7 C	-0.55 C
1995	10.5 C	-0.69 C
1996	9.9 C	-1.30 C
1997	9.4 C	-1.78 C
1998	11.8 C	+0.62 C
1999	11.3 C	+0.11 C
2000	10.5 C	-0.68 C
2001	10.8 C	-0.47 C
2002	11.4 C	+0.18 C
2003	11.2 C	-0.03 C
2004	11.6 C	+0.38 C
2005	11.7 C	+0.49 C
2006	11.9 C	+0.64 C
2007	11.7 C	+0.49 C
2008	10.9 C	-0.32 C
2010	11.2 C	-0.01 C
2011	12.0 C	+0.82 C
2012	12.5 C	+1.24 C
2013	11.2 C	-0.02 C
2014	10.5 C	-0.72 C
2015	11.8 C	+0.56 C
2016	12.5 C	+1.28 C
2017	12.3 C	+1.05 C
2018	12.0 C	+0.73 C
2019	12.3 C	+1.10 C
2020	12.3 C	+1.07 C
2021	12.3 C	+1.09 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.4) per decade over 1972 to 2021. In Fahrenheit: 0.5 F (0.3 to 0.8) 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 W Union 2
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.1 to 0.4) per decade	0.5 F (0.3 to 0.8) per decade	1972 to 2021	43	Rise
Mean daily maximum	0.3 C (0.1 to 0.4) per decade	0.5 F (0.2 to 0.7) per decade	1972 to 2021	43	Rise
Mean daily minimum	0.3 C (0.1 to 0.5) per decade	0.6 F (0.3 to 0.9) per decade	1972 to 2021	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

1971 to 2026

Yearly extremes at W Union 2: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.4 C (102.9 F)	1988	34.4 C (93.9 F)	55
Coldest night (TNn)	-36.1 C (-33.0 F)	1994	-21.1 C (-6.0 F)	55
Wettest day (Rx1day)	113.5 mm (4.5 in)	2022	53.8 mm (2.1 in)	55
Wettest five days (Rx5day)	194.1 mm (7.6 in)	1975	88.7 mm (3.5 in)	55
Longest dry spell (CDD)	31 days	1995	13 days	55

Hottest day (TXx)

The hottest day of the year at W Union 2, 1971 to 2026. The record is 39.4 C (102.9 F) in 1988, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at W Union 2 by year
Year	Hottest day (TXx)
1971	36.1 C (97.0 F)
1972	35.0 C (95.0 F)
1973	35.0 C (95.0 F)
1974	32.8 C (91.0 F)
1975	35.0 C (95.0 F)
1976	32.8 C (91.0 F)
1977	34.4 C (93.9 F)
1978	33.3 C (91.9 F)
1979	32.2 C (90.0 F)
1980	35.0 C (95.0 F)
1981	32.2 C (90.0 F)
1982	32.8 C (91.0 F)
1983	37.8 C (100.0 F)
1984	32.8 C (91.0 F)
1985	22.8 C (73.0 F)
1987	33.9 C (93.0 F)
1988	39.4 C (102.9 F)
1989	33.9 C (93.0 F)
1990	33.9 C (93.0 F)
1991	35.0 C (95.0 F)
1992	32.2 C (90.0 F)
1993	35.6 C (96.1 F)
1994	35.0 C (95.0 F)
1995	35.6 C (96.1 F)
1996	33.3 C (91.9 F)
1997	32.2 C (90.0 F)
1998	34.4 C (93.9 F)
1999	35.6 C (96.1 F)
2000	31.7 C (89.1 F)
2001	32.2 C (90.0 F)
2002	35.0 C (95.0 F)
2003	32.2 C (90.0 F)
2004	32.2 C (90.0 F)
2005	34.4 C (93.9 F)
2006	33.9 C (93.0 F)
2007	36.7 C (98.1 F)
2008	33.3 C (91.9 F)
2009	32.8 C (91.0 F)
2010	35.0 C (95.0 F)
2011	35.6 C (96.1 F)
2012	37.8 C (100.0 F)
2013	33.3 C (91.9 F)
2014	32.8 C (91.0 F)
2015	34.4 C (93.9 F)
2016	35.6 C (96.1 F)
2017	32.8 C (91.0 F)
2018	34.4 C (93.9 F)
2019	35.0 C (95.0 F)
2020	35.6 C (96.1 F)
2021	37.2 C (99.0 F)
2022	33.9 C (93.0 F)
2023	35.6 C (96.1 F)
2024	36.7 C (98.1 F)
2025	35.6 C (96.1 F)
2026	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at W Union 2, 1971 to 2026. The record is -36.1 C (-33.0 F) in 1994, marked on the chart; the median year is -21.1 C (-6.0 F).

Coldest night (TNn) at W Union 2 by year
Year	Coldest night (TNn)
1971	-11.1 C (12.0 F)
1972	-23.3 C (-9.9 F)
1973	-16.7 C (1.9 F)
1974	-16.7 C (1.9 F)
1975	-18.9 C (-2.0 F)
1976	-20.0 C (-4.0 F)
1977	-26.1 C (-15.0 F)
1978	-22.8 C (-9.0 F)
1979	-26.7 C (-16.1 F)
1980	-21.7 C (-7.1 F)
1981	-25.6 C (-14.1 F)
1982	-28.9 C (-20.0 F)
1983	-25.0 C (-13.0 F)
1984	-31.1 C (-24.0 F)
1985	-27.8 C (-18.0 F)
1987	-11.1 C (12.0 F)
1988	-21.7 C (-7.1 F)
1989	-27.8 C (-18.0 F)
1990	-15.6 C (3.9 F)
1991	-14.4 C (6.1 F)
1992	-18.9 C (-2.0 F)
1993	-21.7 C (-7.1 F)
1994	-36.1 C (-33.0 F)
1995	-21.7 C (-7.1 F)
1996	-27.2 C (-17.0 F)
1997	-18.3 C (-0.9 F)
1998	-15.6 C (3.9 F)
1999	-17.2 C (1.0 F)
2000	-24.4 C (-11.9 F)
2001	-17.8 C (0.0 F)
2002	-16.7 C (1.9 F)
2003	-22.2 C (-8.0 F)
2004	-21.1 C (-6.0 F)
2005	-18.3 C (-0.9 F)
2006	-17.2 C (1.0 F)
2007	-23.9 C (-11.0 F)
2008	-18.9 C (-2.0 F)
2009	-21.7 C (-7.1 F)
2010	-19.4 C (-2.9 F)
2011	-18.9 C (-2.0 F)
2012	-13.9 C (7.0 F)
2013	-16.1 C (3.0 F)
2014	-25.6 C (-14.1 F)
2015	-26.1 C (-15.0 F)
2016	-21.7 C (-7.1 F)
2017	-18.3 C (-0.9 F)
2018	-25.0 C (-13.0 F)
2019	-22.8 C (-9.0 F)
2020	-12.2 C (10.0 F)
2021	-16.1 C (3.0 F)
2022	-19.4 C (-2.9 F)
2023	-8.3 C (17.1 F)
2024	-15.0 C (5.0 F)
2025	-23.9 C (-11.0 F)
2026	-21.7 C (-7.1 F)

Wettest day (Rx1day)

The wettest day of the year at W Union 2, 1971 to 2026. The record is 113.5 mm (4.5 in) in 2022, marked on the chart; the median year is 53.8 mm (2.1 in).

Wettest day (Rx1day) at W Union 2 by year
Year	Wettest day (Rx1day)
1971	111.3 mm (4.4 in)
1972	50.8 mm (2.0 in)
1973	35.1 mm (1.4 in)
1974	71.9 mm (2.8 in)
1975	99.1 mm (3.9 in)
1976	45.2 mm (1.8 in)
1977	44.7 mm (1.8 in)
1978	74.2 mm (2.9 in)
1979	44.5 mm (1.8 in)
1980	36.3 mm (1.4 in)
1981	38.4 mm (1.5 in)
1982	35.6 mm (1.4 in)
1983	38.9 mm (1.5 in)
1984	56.4 mm (2.2 in)
1985	11.2 mm (0.4 in)
1987	29.5 mm (1.2 in)
1988	75.4 mm (3.0 in)
1989	57.7 mm (2.3 in)
1990	62.0 mm (2.4 in)
1991	48.3 mm (1.9 in)
1992	42.9 mm (1.7 in)
1993	41.9 mm (1.6 in)
1994	71.1 mm (2.8 in)
1995	97.3 mm (3.8 in)
1996	66.0 mm (2.6 in)
1997	50.0 mm (2.0 in)
1998	73.7 mm (2.9 in)
1999	60.2 mm (2.4 in)
2000	69.9 mm (2.8 in)
2001	86.4 mm (3.4 in)
2002	45.2 mm (1.8 in)
2003	54.6 mm (2.1 in)
2004	80.3 mm (3.2 in)
2005	52.3 mm (2.1 in)
2006	61.0 mm (2.4 in)
2007	60.5 mm (2.4 in)
2008	75.7 mm (3.0 in)
2009	50.3 mm (2.0 in)
2010	72.4 mm (2.9 in)
2011	53.8 mm (2.1 in)
2012	44.7 mm (1.8 in)
2013	74.2 mm (2.9 in)
2014	47.0 mm (1.9 in)
2015	47.0 mm (1.9 in)
2016	61.2 mm (2.4 in)
2017	55.9 mm (2.2 in)
2018	63.5 mm (2.5 in)
2019	47.8 mm (1.9 in)
2020	42.9 mm (1.7 in)
2021	51.3 mm (2.0 in)
2022	113.5 mm (4.5 in)
2023	48.8 mm (1.9 in)
2024	53.3 mm (2.1 in)
2025	53.1 mm (2.1 in)
2026	70.6 mm (2.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at W Union 2, 1971 to 2026. The record is 194.1 mm (7.6 in) in 1975, marked on the chart; the median year is 88.7 mm (3.5 in).

Wettest five days (Rx5day) at W Union 2 by year
Year	Wettest five days (Rx5day)
1971	164.1 mm (6.5 in)
1972	83.4 mm (3.3 in)
1973	70.3 mm (2.8 in)
1974	113.5 mm (4.5 in)
1975	194.1 mm (7.6 in)
1976	99.4 mm (3.9 in)
1977	88.7 mm (3.5 in)
1978	89.0 mm (3.5 in)
1979	80.1 mm (3.2 in)
1980	66.9 mm (2.6 in)
1981	79.9 mm (3.1 in)
1982	64.8 mm (2.6 in)
1983	71.8 mm (2.8 in)
1984	61.8 mm (2.4 in)
1985	21.9 mm (0.9 in)
1987	50.3 mm (2.0 in)
1988	79.5 mm (3.1 in)
1989	120.1 mm (4.7 in)
1990	103.9 mm (4.1 in)
1991	84.4 mm (3.3 in)
1992	61.7 mm (2.4 in)
1993	85.1 mm (3.4 in)
1994	100.4 mm (4.0 in)
1995	113.5 mm (4.5 in)
1996	91.3 mm (3.6 in)
1997	97.7 mm (3.8 in)
1998	136.2 mm (5.4 in)
1999	74.7 mm (2.9 in)
2000	77.3 mm (3.0 in)
2001	126.5 mm (5.0 in)
2002	60.6 mm (2.4 in)
2003	92.5 mm (3.6 in)
2004	94.8 mm (3.7 in)
2005	91.3 mm (3.6 in)
2006	96.3 mm (3.8 in)
2007	109.3 mm (4.3 in)
2008	140.3 mm (5.5 in)
2009	91.7 mm (3.6 in)
2010	81.8 mm (3.2 in)
2011	83.5 mm (3.3 in)
2012	92.1 mm (3.6 in)
2013	110.0 mm (4.3 in)
2014	74.5 mm (2.9 in)
2015	71.9 mm (2.8 in)
2016	74.4 mm (2.9 in)
2017	76.8 mm (3.0 in)
2018	135.9 mm (5.4 in)
2019	80.6 mm (3.2 in)
2020	73.6 mm (2.9 in)
2021	99.6 mm (3.9 in)
2022	132.8 mm (5.2 in)
2023	71.7 mm (2.8 in)
2024	63.7 mm (2.5 in)
2025	100.1 mm (3.9 in)
2026	119.4 mm (4.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at W Union 2, 1971 to 2026. The record is 31 days in 1995, marked on the chart; the median year is 13 days.

Longest dry spell (CDD) at W Union 2 by year
Year	Longest dry spell (CDD)
1971	11 days
1972	10 days
1973	15 days
1974	15 days
1975	15 days
1976	14 days
1977	16 days
1978	11 days
1979	13 days
1980	13 days
1981	16 days
1982	16 days
1983	12 days
1984	19 days
1985	8 days
1987	11 days
1988	24 days
1989	11 days
1990	13 days
1991	25 days
1992	11 days
1993	17 days
1994	22 days
1995	31 days
1996	13 days
1997	12 days
1998	14 days
1999	18 days
2000	12 days
2001	12 days
2002	18 days
2003	12 days
2004	12 days
2005	19 days
2006	12 days
2007	15 days
2008	17 days
2009	14 days
2010	23 days
2011	11 days
2012	14 days
2013	11 days
2014	10 days
2015	19 days
2016	9 days
2017	22 days
2018	17 days
2019	26 days
2020	13 days
2021	10 days
2022	10 days
2023	13 days
2024	12 days
2025	14 days
2026	11 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 W Union 2 falls on 3 May and the median first autumn frost on 17 October, which leaves a median of 164 days between them.

Fitted over all years, the growing season changes by +6.1 days per decade at this station.

Frost dates and growing season at W Union 2
Measure	Median, all years	Earliest period	Recent period (1991 to 2021)	Recent against earliest	Fitted trend
Last spring frost	3 May	n/a	30 April	n/a	-2.3 days per decade
First autumn frost	17 October	n/a	18 October	n/a	+3.8 days per decade
Growing days	164 days	n/a	169 days	n/a	+6.1 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

48 years, 1972 to 2024

A day with at least 55.1 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 107.7 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at W Union 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	55.1 mm (2.2 in)
5 years	69.4 mm (2.7 in)
10 years	78.7 mm (3.1 in)
25 years	90.5 mm (3.6 in)
50 years	99.2 mm (3.9 in)	Longer than the 48 years of record
100 years	107.7 mm (4.2 in)	Longer than the 48 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, 48 years of values from 1972 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: 99.1 mm (3.9 in) in 1975; 97.3 mm (3.8 in) in 1995; 86.4 mm (3.4 in) in 2001.

Station Changes

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

Download the Data

Data for W Union 2 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for W Union 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 2026-10-12 (12 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).