Big Is Weather Records (USC00444039)

Record envelope, standing records and threshold days for Big Is (USC00444039), Virginia, United States, with 64 years of record.

Key Facts for Big Is

Big Is (USC00444039) is a weather station in Virginia, United States at 37.54 latitude and -79.40 longitude, 274 m (900 ft) above sea level.
The station reports from 1960 to 2023, 64 years of record.
1,464 records set at Big Is still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Big Is set a daily record precipitation of 21.8 mm (0.9 in) on 7 August 2023.

About the Station

Location: Virginia, United States, 37.54 latitude, -79.40 longitude.
Elevation: 274 m (900 ft).
Period of record: 1960 to 2023, 64 years.
Eligible elements: 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 Big Is. 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 Big Is, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	22.8 C (73.0 F)	-8.3 C (17.1 F)	n/a	n/a
Feb	23.9 C (75.0 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-4.4 C (24.1 F)	n/a	n/a
Apr	33.3 C (91.9 F)	-1.7 C (28.9 F)	n/a	n/a
May	35.6 C (96.1 F)	1.1 C (34.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	10.0 C (50.0 F)	n/a	n/a
Jul	38.3 C (100.9 F)	12.8 C (55.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	9.4 C (48.9 F)	n/a	n/a
Sep	33.9 C (93.0 F)	5.0 C (41.0 F)	n/a	n/a
Oct	28.3 C (82.9 F)	0.0 C (32.0 F)	n/a	n/a
Nov	22.8 C (73.0 F)	-3.9 C (25.0 F)	n/a	n/a
Dec	22.2 C (72.0 F)	-5.6 C (21.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Big Is still stand. 2012 holds the most, with 636.

All-Time Record Progression

1 new records

1 all-time records were set at Big Is between 10 December 2018 and 10 December 2018. Each dot is a new record.

Wettest Day of Each Month

Oct: 146.1 mm (5.8 in)

The wettest day on record for each calendar month at Big Is. The most was 146.1 mm (5.8 in) on 8 October 2005.

Record daily precipitation for each month at Big Is
Month	Record daily precipitation (mm)	Date
Jan	82.8 mm (3.3 in)	25 January 2010
Feb	82.6 mm (3.3 in)	13 February 1984
Mar	68.8 mm (2.7 in)	7 March 1967
Apr	109.2 mm (4.3 in)	13 April 2020
May	83.1 mm (3.3 in)	25 May 2017
Jun	134.6 mm (5.3 in)	4 June 1979
Jul	68.6 mm (2.7 in)	14 July 2023
Aug	102.9 mm (4.1 in)	28 August 2008
Sep	136.7 mm (5.4 in)	6 September 2011
Oct	146.1 mm (5.8 in)	8 October 2005
Nov	77.5 mm (3.1 in)	27 November 2013
Dec	70.1 mm (2.8 in)	21 December 2018

Period of Record Coverage

2011 to 2013

3 years of record at Big Is, 2011 to 2013. 2 years have data for under 90 percent of days and are left out of rankings: 2011, 2013.

Latest Records

Latest records at Big Is
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 August 2023	Big Is, US	daily rain	21.8 mm (0.9 in)	10.4 mm (0.4 in)	61 years	20 of 100 (Routine)
16 July 2023	Big Is, US	daily rain	68.3 mm (2.7 in)	49.2 mm (1.9 in)	48 years	60 of 100 (Major)
14 July 2023	Big Is, US	monthly rain	68.6 mm (2.7 in)	3.8 mm (0.15 in)	56 years	36 of 100 (Notable)
23 June 2023	Big Is, US	daily rain	45.5 mm (1.8 in)	18.8 mm (0.7 in)	4 years	19 of 100 (Routine)
28 April 2023	Big Is, US	daily rain	66.5 mm (2.6 in)	45.7 mm (1.8 in)	58 years	55 of 100 (Notable)
4 March 2023	Big Is, US	daily rain	22.1 mm (0.9 in)	1.3 mm (0.05 in)	49 years	20 of 100 (Routine)
11 November 2022	Big Is, US	daily rain	41.1 mm (1.6 in)	2.5 mm (0.10 in)	52 years	22 of 100 (Routine)
22 August 2022	Big Is, US	daily rain	31.0 mm (1.2 in)	9.9 mm (0.39 in)	12 years	17 of 100 (Routine)
1 August 2022	Big Is, US	daily rain	36.8 mm (1.4 in)	12.9 mm (0.5 in)	52 years	31 of 100 (Routine)
24 May 2022	Big Is, US	daily rain	60.7 mm (2.4 in)	27.2 mm (1.1 in)	4 years	27 of 100 (Routine)
19 April 2022	Big Is, US	daily rain	24.4 mm (1.0 in)	3.1 mm (0.12 in)	9 years	10 of 100 (Routine)
6 April 2022	Big Is, US	daily rain	25.4 mm (1.0 in)	6.1 mm (0.24 in)	13 years	14 of 100 (Routine)
24 March 2022	Big Is, US	daily rain	53.3 mm (2.1 in)	30.7 mm (1.2 in)	43 years	46 of 100 (Notable)
4 February 2022	Big Is, US	daily rain	41.4 mm (1.6 in)	11.9 mm (0.5 in)	6 years	17 of 100 (Routine)
19 January 2022	Big Is, US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	56 years	5 of 100 (Routine)
18 January 2022	Big Is, US	daily snow depth (Tie)	7.6 cm (3.0 in)	tie	56 years	5 of 100 (Routine)
17 January 2022	Big Is, US	daily rain	44.2 mm (1.7 in)	36.3 mm (1.4 in)	8 years	38 of 100 (Notable)
17 January 2022	Big Is, US	daily snowfall	10.2 cm (4.0 in)	1.3 cm (0.5 in)	56 years	24 of 100 (Routine)
17 January 2022	Big Is, US	daily snow depth (Tie)	10.2 cm (4.0 in)	tie	56 years	5 of 100 (Routine)
3 January 2022	Big Is, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	60 years	33 of 100 (Routine)

Extremes by Year

1960 to 2023

Yearly extremes at Big Is: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	2012	38.3 C (100.9 F)	3
Coldest night (TNn)	-9.4 C (15.1 F)	2013	-8.3 C (17.1 F)	3
Wettest day (Rx1day)	146.1 mm (5.8 in)	2005	69.9 mm (2.8 in)	46
Wettest five days (Rx5day)	239.2 mm (9.4 in)	2005	120.4 mm (4.7 in)	46
Longest dry spell (CDD)	34 days	2007	17 days	46

Hottest day (TXx)

The hottest day of the year at Big Is, 1960 to 2023. The record is 40.0 C (104.0 F) in 2012, marked on the chart; the median year is 38.3 C (100.9 F).

Hottest day (TXx) at Big Is by year
Year	Hottest day (TXx)
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	38.3 C (100.9 F)
2012	40.0 C (104.0 F)
2013	33.9 C (93.0 F)
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a

Coldest night (TNn)

The coldest night of the year at Big Is, 1960 to 2023. The record is -9.4 C (15.1 F) in 2013, marked on the chart; the median year is -8.3 C (17.1 F).

Coldest night (TNn) at Big Is by year
Year	Coldest night (TNn)
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	-5.6 C (21.9 F)
2012	-8.3 C (17.1 F)
2013	-9.4 C (15.1 F)
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a

Wettest day (Rx1day)

The wettest day of the year at Big Is, 1960 to 2023. The record is 146.1 mm (5.8 in) in 2005, marked on the chart; the median year is 69.9 mm (2.8 in).

Wettest day (Rx1day) at Big Is by year
Year	Wettest day (Rx1day)
1960	50.8 mm (2.0 in)
1961	85.1 mm (3.4 in)
1962	91.4 mm (3.6 in)
1963	61.0 mm (2.4 in)
1964	47.0 mm (1.9 in)
1965	54.9 mm (2.2 in)
1966	89.2 mm (3.5 in)
1967	68.8 mm (2.7 in)
1968	57.7 mm (2.3 in)
1969	42.9 mm (1.7 in)
1970	98.3 mm (3.9 in)
1971	71.1 mm (2.8 in)
1972	72.9 mm (2.9 in)
1973	82.8 mm (3.3 in)
1974	63.8 mm (2.5 in)
1975	50.3 mm (2.0 in)
1976	90.2 mm (3.6 in)
1977	51.3 mm (2.0 in)
1978	52.1 mm (2.1 in)
1979	134.6 mm (5.3 in)
1980	40.4 mm (1.6 in)
1981	50.5 mm (2.0 in)
1982	79.2 mm (3.1 in)
1983	75.4 mm (3.0 in)
1984	82.6 mm (3.3 in)
1985	68.6 mm (2.7 in)
2004	23.4 mm (0.9 in)
2005	146.1 mm (5.8 in)
2006	116.8 mm (4.6 in)
2007	66.5 mm (2.6 in)
2008	102.9 mm (4.1 in)
2009	63.2 mm (2.5 in)
2010	82.8 mm (3.3 in)
2011	136.7 mm (5.4 in)
2012	57.4 mm (2.3 in)
2013	83.6 mm (3.3 in)
2014	56.4 mm (2.2 in)
2015	76.2 mm (3.0 in)
2016	73.9 mm (2.9 in)
2017	83.1 mm (3.3 in)
2018	100.1 mm (3.9 in)
2019	56.1 mm (2.2 in)
2020	109.2 mm (4.3 in)
2021	67.3 mm (2.6 in)
2022	60.7 mm (2.4 in)
2023	68.6 mm (2.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Big Is, 1960 to 2023. The record is 239.2 mm (9.4 in) in 2005, marked on the chart; the median year is 120.4 mm (4.7 in).

Wettest five days (Rx5day) at Big Is by year
Year	Wettest five days (Rx5day)
1960	118.4 mm (4.7 in)
1961	122.4 mm (4.8 in)
1962	127.0 mm (5.0 in)
1963	81.5 mm (3.2 in)
1964	78.8 mm (3.1 in)
1965	88.2 mm (3.5 in)
1966	96.1 mm (3.8 in)
1967	93.2 mm (3.7 in)
1968	91.2 mm (3.6 in)
1969	57.4 mm (2.3 in)
1970	160.1 mm (6.3 in)
1971	107.1 mm (4.2 in)
1972	128.8 mm (5.1 in)
1973	123.7 mm (4.9 in)
1974	94.3 mm (3.7 in)
1975	114.0 mm (4.5 in)
1976	122.4 mm (4.8 in)
1977	80.7 mm (3.2 in)
1978	98.9 mm (3.9 in)
1979	166.1 mm (6.5 in)
1980	67.3 mm (2.6 in)
1981	108.0 mm (4.3 in)
1982	144.8 mm (5.7 in)
1983	116.1 mm (4.6 in)
1984	126.0 mm (5.0 in)
1985	126.2 mm (5.0 in)
2004	23.4 mm (0.9 in)
2005	239.2 mm (9.4 in)
2006	238.5 mm (9.4 in)
2007	108.4 mm (4.3 in)
2008	123.9 mm (4.9 in)
2009	93.5 mm (3.7 in)
2010	149.2 mm (5.9 in)
2011	178.4 mm (7.0 in)
2012	73.4 mm (2.9 in)
2013	132.1 mm (5.2 in)
2014	80.6 mm (3.2 in)
2015	147.9 mm (5.8 in)
2016	184.9 mm (7.3 in)
2017	162.6 mm (6.4 in)
2018	154.6 mm (6.1 in)
2019	137.9 mm (5.4 in)
2020	135.6 mm (5.3 in)
2021	113.8 mm (4.5 in)
2022	109.1 mm (4.3 in)
2023	146.6 mm (5.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Big Is, 1960 to 2023. The record is 34 days in 2007, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Big Is by year
Year	Longest dry spell (CDD)
1960	12 days
1961	18 days
1962	25 days
1963	23 days
1964	32 days
1965	18 days
1966	27 days
1967	23 days
1968	26 days
1969	13 days
1970	21 days
1971	17 days
1972	16 days
1973	19 days
1974	17 days
1975	17 days
1976	20 days
1977	18 days
1978	21 days
1979	12 days
1980	18 days
1981	17 days
1982	17 days
1983	16 days
1984	21 days
1985	19 days
2004	10 days
2005	16 days
2006	13 days
2007	34 days
2008	13 days
2009	15 days
2010	16 days
2011	17 days
2012	19 days
2013	18 days
2014	12 days
2015	17 days
2016	22 days
2017	24 days
2018	15 days
2019	15 days
2020	14 days
2021	18 days
2022	14 days
2023	12 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.

Rainfall Return Levels

34 years, 1961 to 2022

A day with at least 70.1 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 132.3 mm (5.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Big Is: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	70.1 mm (2.8 in)
5 years	88.4 mm (3.5 in)
10 years	99.8 mm (3.9 in)
25 years	113.5 mm (4.5 in)
50 years	123.2 mm (4.9 in)	Longer than the 34 years of record
100 years	132.3 mm (5.2 in)	Longer than the 34 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, 34 years of values from 1961 to 2022.

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: 136.7 mm (5.4 in) in 2011; 102.9 mm (4.1 in) in 2008; 100.1 mm (3.9 in) in 2018.

Download the Data

Data for Big Is standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Big Is 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Year	Days with data	Share of year	Complete
2011	267	73%	No
2012	366	100%	Yes
2013	236	65%	No