Built 2026-10-16 (16 October 2026)

Reston Weather Records (USC00357112)

Record envelope, standing records and threshold days for Reston (USC00357112), Oregon, United States, with 96 years of record.

Key Facts for Reston

  • Reston (USC00357112) is a weather station in Oregon, United States at 43.13 latitude and -123.62 longitude, 271 m (890 ft) above sea level.
  • The station reports from 1909 to 2004, 96 years of record.
  • 0 records set at Reston still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Reston set a daily record precipitation of 18.3 mm (0.7 in) on 20 April 2004.

About the Station

  • Location: Oregon, United States, 43.13 latitude, -123.62 longitude.
  • Elevation: 271 m (890 ft).
  • Period of record: 1909 to 2004, 96 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Reston, with 2026 drawn through them The band shows the record high and record low for each calendar day at Reston. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Reston. 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 Reston, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Reston by the year they were set 0 records at Reston still stand. 00000000000
0 records at Reston still stand.
Standing records at Reston by the year they were set
Year setStanding records

Wettest Day of Each Month

Nov: 163.3 mm (6.4 in)
Record daily precipitation for each month at Reston The wettest day on record for each calendar month at Reston. The most was 163.3 mm (6.4 in) on 22 November 1909. 050100150200 Jan: 78.5 mm (3.1 in), 11 January 1979 Jan Feb: 87.1 mm (3.4 in), 17 February 1983 Feb Mar: 82.8 mm (3.3 in), 2 March 1972 Mar Apr: 43.7 mm (1.7 in), 2 April 1982 Apr May: 62.0 mm (2.4 in), 31 May 1999 May Jun: 25.1 mm (1.0 in), 6 June 1914 Jun Jul: 25.4 mm (1.0 in), 16 July 1916 Jul Aug: 31.5 mm (1.2 in), 17 August 1990 Aug Sep: 50.8 mm (2.0 in), 27 September 1981 Sep Oct: 52.8 mm (2.1 in), 22 October 1982 Oct Nov: 163.3 mm (6.4 in), 22 November 1909 Nov Dec: 146.1 mm (5.8 in), 25 December 1955 Dec
The wettest day on record for each calendar month at Reston. The most was 163.3 mm (6.4 in) on 22 November 1909.
Record daily precipitation for each month at Reston
MonthRecord daily precipitation (mm)Date
Jan78.5 mm (3.1 in)11 January 1979
Feb87.1 mm (3.4 in)17 February 1983
Mar82.8 mm (3.3 in)2 March 1972
Apr43.7 mm (1.7 in)2 April 1982
May62.0 mm (2.4 in)31 May 1999
Jun25.1 mm (1.0 in)6 June 1914
Jul25.4 mm (1.0 in)16 July 1916
Aug31.5 mm (1.2 in)17 August 1990
Sep50.8 mm (2.0 in)27 September 1981
Oct52.8 mm (2.1 in)22 October 1982
Nov163.3 mm (6.4 in)22 November 1909
Dec146.1 mm (5.8 in)25 December 1955

Latest Records

20
Latest records at Reston
DateStationRecordValueBeat old record byOld record stoodSignificance
20 April 2004Reston, USdaily rain18.3 mm (0.7 in)0.8 mm (0.03 in)49 years20 of 100 (Routine)
1 January 2004Reston, USdaily rain42.9 mm (1.7 in)14.7 mm (0.6 in)4 years21 of 100 (Routine)
31 December 2003Reston, USdaily rain43.7 mm (1.7 in)4.8 mm (0.19 in)32 years21 of 100 (Routine)
24 December 2003Reston, USdaily rain43.2 mm (1.7 in)0.8 mm (0.03 in)37 years20 of 100 (Routine)
13 December 2003Reston, USdaily rain58.4 mm (2.3 in)5.1 mm (0.20 in)1 year12 of 100 (Routine)
12 December 2003Reston, USdaily rain65.0 mm (2.6 in)1.0 mm (0.04 in)33 years19 of 100 (Routine)
2 January 2003Reston, USdaily rain35.8 mm (1.4 in)6.1 mm (0.24 in)47 years27 of 100 (Routine)
30 December 2002Reston, USdaily rain63.8 mm (2.5 in)32.3 mm (1.3 in)5 years31 of 100 (Routine)
14 December 2002Reston, USdaily rain53.1 mm (2.1 in)14.0 mm (0.6 in)28 years26 of 100 (Routine)
7 February 2002Reston, USdaily rain33.0 mm (1.3 in)5.6 mm (0.22 in)12 years16 of 100 (Routine)
13 December 2001Reston, USdaily rain53.3 mm (2.1 in)22.8 mm (0.9 in)24 years31 of 100 (Routine)
30 July 2001Reston, USdaily rain2.8 mm (0.11 in)2.8 mm (0.11 in)92 years20 of 100 (Routine)
29 July 2001Reston, USdaily rain3.0 mm (0.12 in)1.0 mm (0.04 in)26 years18 of 100 (Routine)
26 June 2001Reston, USdaily rain (Tie)11.4 mm (0.4 in)tie90 years9 of 100 (Routine)
14 May 2001Reston, USdaily rain26.2 mm (1.0 in)9.7 mm (0.38 in)86 years47 of 100 (Notable)
14 December 2000Reston, USdaily snowfall1.8 cm (0.7 in)1.8 cm (0.7 in)91 years20 of 100 (Routine)
13 December 2000Reston, USdaily rain (Tie)30.5 mm (1.2 in)tie23 years3 of 100 (Routine)
7 June 2000Reston, USdaily rain16.3 mm (0.6 in)10.7 mm (0.4 in)15 years20 of 100 (Routine)
17 April 2000Reston, USdaily rain22.6 mm (0.9 in)6.6 mm (0.26 in)7 years20 of 100 (Routine)
13 January 2000Reston, USdaily rain65.0 mm (2.6 in)13.2 mm (0.5 in)4 years19 of 100 (Routine)

Extremes by Year

1909 to 2004
Yearly extremes at Reston: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)163.3 mm (6.4 in)190963.8 mm (2.5 in)59
Wettest five days (Rx5day)304.0 mm (12.0 in)1964151.4 mm (6.0 in)59
Longest dry spell (CDD)117 days200355 days59

Wettest day (Rx1day)

Wettest day (Rx1day) at Reston by year The wettest day of the year at Reston, 1909 to 2004. The record is 163.3 mm (6.4 in) in 1909, marked on the chart; the median year is 63.8 mm (2.5 in). 05010015020019201940196019802000Record: 163.3 mm (6.4 in) in 1909
The wettest day of the year at Reston, 1909 to 2004. The record is 163.3 mm (6.4 in) in 1909, marked on the chart; the median year is 63.8 mm (2.5 in).
Wettest day (Rx1day) at Reston by year
YearWettest day (Rx1day)
1909163.3 mm (6.4 in)
191076.2 mm (3.0 in)
191155.9 mm (2.2 in)
191258.4 mm (2.3 in)
191348.3 mm (1.9 in)
191446.5 mm (1.8 in)
191563.5 mm (2.5 in)
191669.1 mm (2.7 in)
191750.8 mm (2.0 in)
1955146.1 mm (5.8 in)
195686.1 mm (3.4 in)
195762.5 mm (2.5 in)
195872.6 mm (2.9 in)
195973.9 mm (2.9 in)
196079.8 mm (3.1 in)
1961133.4 mm (5.3 in)
196252.1 mm (2.1 in)
196368.1 mm (2.7 in)
1964105.4 mm (4.1 in)
196588.4 mm (3.5 in)
196674.7 mm (2.9 in)
196754.6 mm (2.1 in)
196857.7 mm (2.3 in)
196996.5 mm (3.8 in)
197056.1 mm (2.2 in)
197167.3 mm (2.6 in)
197282.8 mm (3.3 in)
197373.2 mm (2.9 in)
197457.4 mm (2.3 in)
197550.8 mm (2.0 in)
197664.5 mm (2.5 in)
197759.7 mm (2.4 in)
197855.6 mm (2.2 in)
197978.5 mm (3.1 in)
198064.8 mm (2.6 in)
1981119.9 mm (4.7 in)
198256.4 mm (2.2 in)
198387.1 mm (3.4 in)
198480.3 mm (3.2 in)
198539.6 mm (1.6 in)
198663.8 mm (2.5 in)
198767.6 mm (2.7 in)
198867.3 mm (2.6 in)
198958.2 mm (2.3 in)
199061.5 mm (2.4 in)
199145.0 mm (1.8 in)
199243.4 mm (1.7 in)
199353.8 mm (2.1 in)
199441.4 mm (1.6 in)
199558.2 mm (2.3 in)
1996124.7 mm (4.9 in)
199752.8 mm (2.1 in)
1998112.3 mm (4.4 in)
199962.0 mm (2.4 in)
200065.0 mm (2.6 in)
200153.3 mm (2.1 in)
200263.8 mm (2.5 in)
200365.0 mm (2.6 in)
200442.9 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Reston by year The wettest five days of the year at Reston, 1909 to 2004. The record is 304.0 mm (12.0 in) in 1964, marked on the chart; the median year is 151.4 mm (6.0 in). 010020030040019201940196019802000Record: 304.0 mm (12.0 in) in 1964
The wettest five days of the year at Reston, 1909 to 2004. The record is 304.0 mm (12.0 in) in 1964, marked on the chart; the median year is 151.4 mm (6.0 in).
Wettest five days (Rx5day) at Reston by year
YearWettest five days (Rx5day)
1909286.0 mm (11.3 in)
1910161.6 mm (6.4 in)
1911100.4 mm (4.0 in)
1912135.9 mm (5.4 in)
1913134.3 mm (5.3 in)
1914114.5 mm (4.5 in)
1915141.2 mm (5.6 in)
1916140.2 mm (5.5 in)
191796.1 mm (3.8 in)
1955253.7 mm (10.0 in)
1956156.2 mm (6.1 in)
1957225.2 mm (8.9 in)
1958156.7 mm (6.2 in)
1959209.5 mm (8.2 in)
1960161.0 mm (6.3 in)
1961301.3 mm (11.9 in)
1962143.7 mm (5.7 in)
1963128.9 mm (5.1 in)
1964304.0 mm (12.0 in)
1965166.8 mm (6.6 in)
1966199.4 mm (7.9 in)
1967126.7 mm (5.0 in)
1968116.4 mm (4.6 in)
1969160.4 mm (6.3 in)
1970192.0 mm (7.6 in)
1971189.0 mm (7.4 in)
1972163.4 mm (6.4 in)
1973185.7 mm (7.3 in)
1974204.9 mm (8.1 in)
1975141.6 mm (5.6 in)
1976161.3 mm (6.4 in)
1977208.9 mm (8.2 in)
197880.2 mm (3.2 in)
1979113.1 mm (4.5 in)
1980211.1 mm (8.3 in)
1981151.4 mm (6.0 in)
1982131.6 mm (5.2 in)
1983147.1 mm (5.8 in)
1984147.8 mm (5.8 in)
1985120.7 mm (4.8 in)
1986169.8 mm (6.7 in)
1987173.2 mm (6.8 in)
1988112.8 mm (4.4 in)
198995.0 mm (3.7 in)
1990131.9 mm (5.2 in)
199197.7 mm (3.8 in)
1992109.3 mm (4.3 in)
1993124.6 mm (4.9 in)
199496.0 mm (3.8 in)
1995184.4 mm (7.3 in)
1996203.7 mm (8.0 in)
1997108.1 mm (4.3 in)
1998205.5 mm (8.1 in)
1999125.3 mm (4.9 in)
2000190.7 mm (7.5 in)
200198.8 mm (3.9 in)
2002153.6 mm (6.0 in)
2003148.6 mm (5.9 in)
2004172.4 mm (6.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Reston by year The longest dry spell of the year at Reston, 1909 to 2004. The record is 117 days in 2003, marked on the chart; the median year is 55 days. 025507510012519201940196019802000Record: 117 days in 2003
The longest dry spell of the year at Reston, 1909 to 2004. The record is 117 days in 2003, marked on the chart; the median year is 55 days.
Longest dry spell (CDD) at Reston by year
YearLongest dry spell (CDD)
190975 days
191084 days
191166 days
191245 days
191324 days
191474 days
191545 days
191630 days
191750 days
195570 days
195681 days
195750 days
195839 days
195968 days
196052 days
196120 days
196233 days
196371 days
196445 days
196541 days
196662 days
1967100 days
196872 days
196980 days
197078 days
197157 days
197264 days
197367 days
1974110 days
197536 days
197636 days
197766 days
197840 days
197964 days
198069 days
198151 days
198255 days
198333 days
198487 days
198553 days
198673 days
198747 days
198855 days
198922 days
199045 days
199154 days
199244 days
199350 days
199479 days
199538 days
199648 days
199749 days
199899 days
199966 days
200058 days
200132 days
200254 days
2003117 days
200471 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

53 years, 1910 to 2003

A day with at least 62.9 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 130.3 mm (5.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Reston: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years62.9 mm (2.5 in)
5 years78.3 mm (3.1 in)
10 years89.4 mm (3.5 in)
25 years104.8 mm (4.1 in)
50 years117.1 mm (4.6 in)
100 years130.3 mm (5.1 in)Longer than the 53 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, 53 years of values from 1910 to 2003.

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: 124.7 mm (4.9 in) in 1996; 119.9 mm (4.7 in) in 1981; 112.3 mm (4.4 in) in 1998.

Download the Data

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