Tygart Dam Weather Records (USC00468986)

Record envelope, standing records and threshold days for Tygart Dam (USC00468986), West Virginia, United States, with 79 years of record.

Key Facts for Tygart Dam

Tygart Dam (USC00468986) is a weather station in West Virginia, United States at 39.31 latitude and -80.03 longitude, 376 m (1,235 ft) above sea level.
The station reports from 1948 to 2026, 79 years of record.
1,464 records set at Tygart Dam still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: West Virginia, United States, 39.31 latitude, -80.03 longitude.
Elevation: 376 m (1,235 ft).
Period of record: 1948 to 2026, 79 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

50 days at or beyond a record

The band shows the record high and record low for each calendar day at Tygart Dam. The lines show the 2026 daily maximum and minimum. 50 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Tygart Dam, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	22.2 C (72.0 F)	-23.9 C (-11.0 F)	15.6 C (60.1 F)	-23.9 C (-11.0 F)
Feb	25.0 C (77.0 F)	-22.8 C (-9.0 F)	17.2 C (63.0 F)	-11.1 C (12.0 F)
Mar	28.9 C (84.0 F)	-18.9 C (-2.0 F)	28.3 C (82.9 F)	-9.4 C (15.1 F)
Apr	31.1 C (88.0 F)	-6.7 C (19.9 F)	29.4 C (84.9 F)	-5.0 C (23.0 F)
May	32.2 C (90.0 F)	-2.2 C (28.0 F)	28.9 C (84.0 F)	3.3 C (37.9 F)
Jun	35.0 C (95.0 F)	2.2 C (36.0 F)	35.0 C (95.0 F)	4.4 C (39.9 F)
Jul	35.6 C (96.1 F)	8.3 C (46.9 F)	33.9 C (93.0 F)	14.4 C (57.9 F)
Aug	36.1 C (97.0 F)	7.2 C (45.0 F)	33.9 C (93.0 F)	7.2 C (45.0 F)
Sep	33.9 C (93.0 F)	2.8 C (37.0 F)	31.1 C (88.0 F)	6.1 C (43.0 F)
Oct	32.8 C (91.0 F)	-3.3 C (26.1 F)	28.9 C (84.0 F)	-0.6 C (30.9 F)
Nov	27.8 C (82.0 F)	-11.7 C (10.9 F)	20.6 C (69.1 F)	-5.6 C (21.9 F)
Dec	22.8 C (73.0 F)	-20.0 C (-4.0 F)	17.8 C (64.0 F)	-15.0 C (5.0 F)

Which Years Hold Standing Records

1,464 standing records

1,464 records at Tygart Dam still stand. 2018 holds the most, with 85.

Standing records at Tygart Dam by the year they were set
Year set	Standing records
2000	28
2001	78
2002	69
2003	43
2004	53
2005	44
2006	55
2007	77
2008	72
2009	52
2010	51
2011	33
2012	64
2013	42
2014	69
2015	56
2016	65
2017	64
2018	85
2019	45
2020	42
2021	47
2022	45
2023	50
2024	74
2025	61

Wettest Day of Each Month

Sep: 98.6 mm (3.9 in)

The wettest day on record for each calendar month at Tygart Dam. The most was 98.6 mm (3.9 in) on 9 September 2018.

Record daily precipitation for each month at Tygart Dam
Month	Record daily precipitation (mm)	Date
Jan	39.9 mm (1.6 in)	25 January 2010
Feb	46.2 mm (1.8 in)	16 February 2018
Mar	34.8 mm (1.4 in)	6 March 2004
Apr	69.9 mm (2.8 in)	16 April 2018
May	64.8 mm (2.6 in)	29 May 2021
Jun	71.9 mm (2.8 in)	4 June 2008
Jul	79.5 mm (3.1 in)	11 July 2001
Aug	69.9 mm (2.8 in)	23 August 2017
Sep	98.6 mm (3.9 in)	9 September 2018
Oct	48.5 mm (1.9 in)	5 October 2006
Nov	54.9 mm (2.2 in)	12 November 2003
Dec	53.1 mm (2.1 in)	15 December 1948

Period of Record Coverage

2000 to 2025

26 years of record at Tygart Dam, 2000 to 2025. 2 years have data for under 90 percent of days and are left out of rankings: 2000, 2020.

Days with data per year at Tygart Dam
Year	Days with data	Share of year	Complete
2000	92	25%	No
2001	362	99%	Yes
2002	364	100%	Yes
2003	365	100%	Yes
2004	365	100%	Yes
2005	360	99%	Yes
2006	351	96%	Yes
2007	354	97%	Yes
2008	351	96%	Yes
2009	339	93%	Yes
2010	342	94%	Yes
2011	345	95%	Yes
2012	345	94%	Yes
2013	345	95%	Yes
2014	351	96%	Yes
2015	343	94%	Yes
2016	358	98%	Yes
2017	359	98%	Yes
2018	349	96%	Yes
2019	350	96%	Yes
2020	312	85%	No
2021	338	93%	Yes
2022	360	99%	Yes
2023	355	97%	Yes
2024	361	99%	Yes
2025	359	98%	Yes

Latest Records

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

Climate Trend

25 complete years, 2001 to 2025

One stripe for each of 25 complete years at Tygart Dam, 2001 to 2025. Blue stripes are years cooler than the station's own mean of 11.2 C (52.1 F); red stripes are warmer. The coolest year was 2014, at 9.8 C (49.6 F), and the warmest was 2024, at 12.7 C (54.9 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Tygart Dam as warming stripes, 2001 to 2025
Year	Annual mean temperature	Difference from the station mean
2001	10.9 C	-0.28 C
2002	11.3 C	+0.12 C
2003	10.3 C	-0.90 C
2004	10.8 C	-0.33 C
2005	11.1 C	-0.09 C
2006	11.1 C	-0.07 C
2007	11.0 C	-0.12 C
2008	10.6 C	-0.59 C
2009	10.3 C	-0.83 C
2010	10.6 C	-0.57 C
2011	11.4 C	+0.19 C
2012	11.8 C	+0.60 C
2013	10.5 C	-0.68 C
2014	9.8 C	-1.37 C
2015	10.9 C	-0.23 C
2016	11.6 C	+0.46 C
2017	11.6 C	+0.48 C
2018	11.5 C	+0.31 C
2019	11.8 C	+0.67 C
2020	11.7 C	+0.58 C
2021	11.8 C	+0.63 C
2022	10.8 C	-0.34 C
2023	11.7 C	+0.56 C
2024	12.7 C	+1.56 C
2025	11.4 C	+0.23 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

1948 to 2026

Yearly extremes at Tygart Dam: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.1 C (97.0 F)	2024	32.8 C (91.0 F)	27
Coldest night (TNn)	-23.9 C (-11.0 F)	2025	-18.9 C (-2.0 F)	27
Wettest day (Rx1day)	98.6 mm (3.9 in)	2018	48.5 mm (1.9 in)	31
Wettest five days (Rx5day)	156.6 mm (6.2 in)	2018	86.4 mm (3.4 in)	31
Longest dry spell (CDD)	22 days	2005	14 days	31

Hottest day (TXx)

The hottest day of the year at Tygart Dam, 1948 to 2026. The record is 36.1 C (97.0 F) in 2024, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at Tygart Dam by year
Year	Hottest day (TXx)
1948	n/a
1949	n/a
1950	n/a
1951	n/a
2000	26.7 C (80.1 F)
2001	32.2 C (90.0 F)
2002	32.8 C (91.0 F)
2003	30.6 C (87.1 F)
2004	30.0 C (86.0 F)
2005	33.9 C (93.0 F)
2006	32.2 C (90.0 F)
2007	33.3 C (91.9 F)
2008	32.2 C (90.0 F)
2009	31.7 C (89.1 F)
2010	33.3 C (91.9 F)
2011	33.9 C (93.0 F)
2012	35.6 C (96.1 F)
2013	31.1 C (88.0 F)
2014	31.1 C (88.0 F)
2015	30.6 C (87.1 F)
2016	32.8 C (91.0 F)
2017	30.6 C (87.1 F)
2018	33.3 C (91.9 F)
2019	33.3 C (91.9 F)
2020	34.4 C (93.9 F)
2021	33.9 C (93.0 F)
2022	34.4 C (93.9 F)
2023	32.2 C (90.0 F)
2024	36.1 C (97.0 F)
2025	35.0 C (95.0 F)
2026	33.9 C (93.0 F)

Coldest night (TNn)

The coldest night of the year at Tygart Dam, 1948 to 2026. The record is -23.9 C (-11.0 F) in 2025, marked on the chart; the median year is -18.9 C (-2.0 F).

Coldest night (TNn) at Tygart Dam by year
Year	Coldest night (TNn)
1948	n/a
1949	n/a
1950	n/a
1951	n/a
2000	-18.9 C (-2.0 F)
2001	-17.8 C (0.0 F)
2002	-15.6 C (3.9 F)
2003	-21.1 C (-6.0 F)
2004	-20.6 C (-5.1 F)
2005	-17.2 C (1.0 F)
2006	-18.3 C (-0.9 F)
2007	-22.2 C (-8.0 F)
2008	-16.7 C (1.9 F)
2009	-22.8 C (-9.0 F)
2010	-18.3 C (-0.9 F)
2011	-18.9 C (-2.0 F)
2012	-13.9 C (7.0 F)
2013	-14.4 C (6.1 F)
2014	-22.2 C (-8.0 F)
2015	-22.8 C (-9.0 F)
2016	-21.1 C (-6.0 F)
2017	-17.8 C (0.0 F)
2018	-22.2 C (-8.0 F)
2019	-21.1 C (-6.0 F)
2020	-11.7 C (10.9 F)
2021	-16.1 C (3.0 F)
2022	-20.0 C (-4.0 F)
2023	-13.3 C (8.1 F)
2024	-17.2 C (1.0 F)
2025	-23.9 C (-11.0 F)
2026	-21.1 C (-6.0 F)

Wettest day (Rx1day)

The wettest day of the year at Tygart Dam, 1948 to 2026. The record is 98.6 mm (3.9 in) in 2018, marked on the chart; the median year is 48.5 mm (1.9 in).

Wettest day (Rx1day) at Tygart Dam by year
Year	Wettest day (Rx1day)
1948	53.1 mm (2.1 in)
1949	42.4 mm (1.7 in)
1950	40.1 mm (1.6 in)
1951	35.6 mm (1.4 in)
2000	45.0 mm (1.8 in)
2001	79.5 mm (3.1 in)
2002	71.1 mm (2.8 in)
2003	54.9 mm (2.2 in)
2004	52.1 mm (2.1 in)
2005	42.9 mm (1.7 in)
2006	48.5 mm (1.9 in)
2007	48.5 mm (1.9 in)
2008	71.9 mm (2.8 in)
2009	41.4 mm (1.6 in)
2010	44.5 mm (1.8 in)
2011	44.4 mm (1.7 in)
2012	40.1 mm (1.6 in)
2013	63.8 mm (2.5 in)
2014	71.4 mm (2.8 in)
2015	55.6 mm (2.2 in)
2016	88.9 mm (3.5 in)
2017	69.9 mm (2.8 in)
2018	98.6 mm (3.9 in)
2019	44.2 mm (1.7 in)
2020	40.1 mm (1.6 in)
2021	64.8 mm (2.6 in)
2022	50.3 mm (2.0 in)
2023	45.2 mm (1.8 in)
2024	45.5 mm (1.8 in)
2025	46.2 mm (1.8 in)
2026	49.5 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Tygart Dam, 1948 to 2026. The record is 156.6 mm (6.2 in) in 2018, marked on the chart; the median year is 86.4 mm (3.4 in).

Wettest five days (Rx5day) at Tygart Dam by year
Year	Wettest five days (Rx5day)
1948	89.2 mm (3.5 in)
1949	74.8 mm (2.9 in)
1950	90.7 mm (3.6 in)
1951	83.8 mm (3.3 in)
2000	46.8 mm (1.8 in)
2001	147.6 mm (5.8 in)
2002	130.0 mm (5.1 in)
2003	109.1 mm (4.3 in)
2004	89.1 mm (3.5 in)
2005	76.7 mm (3.0 in)
2006	60.0 mm (2.4 in)
2007	93.8 mm (3.7 in)
2008	143.0 mm (5.6 in)
2009	86.4 mm (3.4 in)
2010	69.8 mm (2.7 in)
2011	85.3 mm (3.4 in)
2012	52.2 mm (2.1 in)
2013	120.3 mm (4.7 in)
2014	84.6 mm (3.3 in)
2015	89.2 mm (3.5 in)
2016	114.4 mm (4.5 in)
2017	92.2 mm (3.6 in)
2018	156.6 mm (6.2 in)
2019	73.2 mm (2.9 in)
2020	57.3 mm (2.3 in)
2021	82.1 mm (3.2 in)
2022	75.0 mm (3.0 in)
2023	49.5 mm (1.9 in)
2024	67.2 mm (2.6 in)
2025	102.5 mm (4.0 in)
2026	102.1 mm (4.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Tygart Dam, 1948 to 2026. The record is 22 days in 2005, marked on the chart; the median year is 14 days.

Longest dry spell (CDD) at Tygart Dam by year
Year	Longest dry spell (CDD)
1948	13 days
1949	16 days
1950	10 days
1951	10 days
2000	13 days
2001	16 days
2002	20 days
2003	15 days
2004	16 days
2005	22 days
2006	13 days
2007	11 days
2008	14 days
2009	17 days
2010	21 days
2011	11 days
2012	13 days
2013	14 days
2014	12 days
2015	13 days
2016	9 days
2017	14 days
2018	10 days
2019	13 days
2020	14 days
2021	14 days
2022	10 days
2023	21 days
2024	15 days
2025	15 days
2026	8 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

25 years with a frost

Across 25 years with a frost, the median last spring frost at Tygart Dam falls on 27 April and the median first autumn frost on 20 October, which leaves a median of 173 days between them.

Fitted over all years, the growing season changes by +7.0 days per decade at this station.

Frost dates and growing season at Tygart Dam
Measure	Median, all years	Earliest period	Recent period (2001 to 2025)	Recent against earliest	Fitted trend
Last spring frost	27 April	n/a	27 April	n/a	-3.3 days per decade
First autumn frost	20 October	n/a	20 October	n/a	+3.7 days per decade
Growing days	173 days	n/a	173 days	n/a	+7.0 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.

Download the Data

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