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Built 2026-10-15 (15 October 2026)

St Marys Weather Records (USC00467875)

Record envelope, standing records and threshold days for St Marys (USC00467875), West Virginia, United States, with 57 years of record.

Key Facts for St Marys

  • St Marys (USC00467875) is a weather station in West Virginia, United States at 39.38 latitude and -81.20 longitude, 198 m (650 ft) above sea level.
  • The station reports from 1908 to 1964, 57 years of record.
  • 0 records set at St Marys still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • St Marys set a daily record precipitation of 38.6 mm (1.5 in) on 28 September 1964.

About the Station

  • Location: West Virginia, United States, 39.38 latitude, -81.20 longitude.
  • Elevation: 198 m (650 ft).
  • Period of record: 1908 to 1964, 57 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at St Marys, with 2026 drawn through them The band shows the record high and record low for each calendar day at St Marys. 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 St Marys. 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 St Marys, 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 St Marys by the year they were set 0 records at St Marys still stand. 00000000000
0 records at St Marys still stand.
Standing records at St Marys by the year they were set
Year setStanding records

All-Time Record Progression

1 new records
When St Marys set new all-time records 1 all-time records were set at St Marys between 24 September 1945 and 24 September 1945. Each dot is a new record. Record daily precipitation24 September 1945: Record daily precipitation 115.6 mm (4.6 in)1945
1 all-time records were set at St Marys between 24 September 1945 and 24 September 1945. Each dot is a new record.
When St Marys set new all-time records
DateKindDetail
1945-09-24Record daily precipitationRecord daily precipitation 115.6 mm (4.6 in)

Wettest Day of Each Month

Sep: 115.6 mm (4.6 in)
Record daily precipitation for each month at St Marys The wettest day on record for each calendar month at St Marys. The most was 115.6 mm (4.6 in) on 24 September 1945. 050100150 Jan: 64.8 mm (2.6 in), 11 January 1913 Jan Feb: 65.3 mm (2.6 in), 28 February 1945 Feb Mar: 55.6 mm (2.2 in), 5 March 1963 Mar Apr: 66.0 mm (2.6 in), 14 April 1922 Apr May: 45.7 mm (1.8 in), 5 May 1958 May Jun: 85.1 mm (3.4 in), 24 June 1938 Jun Jul: 81.3 mm (3.2 in), 28 July 1923 Jul Aug: 100.3 mm (3.9 in), 12 August 1916 Aug Sep: 115.6 mm (4.6 in), 24 September 1945 Sep Oct: 80.8 mm (3.2 in), 15 October 1954 Oct Nov: 66.0 mm (2.6 in), 26 November 1919 Nov Dec: 55.4 mm (2.2 in), 30 December 1942 Dec
The wettest day on record for each calendar month at St Marys. The most was 115.6 mm (4.6 in) on 24 September 1945.
Record daily precipitation for each month at St Marys
MonthRecord daily precipitation (mm)Date
Jan64.8 mm (2.6 in)11 January 1913
Feb65.3 mm (2.6 in)28 February 1945
Mar55.6 mm (2.2 in)5 March 1963
Apr66.0 mm (2.6 in)14 April 1922
May45.7 mm (1.8 in)5 May 1958
Jun85.1 mm (3.4 in)24 June 1938
Jul81.3 mm (3.2 in)28 July 1923
Aug100.3 mm (3.9 in)12 August 1916
Sep115.6 mm (4.6 in)24 September 1945
Oct80.8 mm (3.2 in)15 October 1954
Nov66.0 mm (2.6 in)26 November 1919
Dec55.4 mm (2.2 in)30 December 1942

Latest Records

20
Latest records at St Marys
DateStationRecordValueBeat old record byOld record stoodSignificance
28 September 1964St Marys, USdaily rain38.6 mm (1.5 in)19.5 mm (0.8 in)31 years28 of 100 (Routine)
2 August 1964St Marys, USdaily rain30.2 mm (1.2 in)2.8 mm (0.11 in)23 years13 of 100 (Routine)
21 June 1964St Marys, USdaily rain38.4 mm (1.5 in)12.2 mm (0.5 in)36 years25 of 100 (Routine)
6 June 1964St Marys, USdaily rain44.5 mm (1.8 in)26.2 mm (1.0 in)40 years39 of 100 (Notable)
10 March 1964St Marys, USdaily rain19.3 mm (0.8 in)5.3 mm (0.21 in)43 years20 of 100 (Routine)
5 March 1963St Marys, USmonthly rain55.6 mm (2.2 in)4.8 mm (0.19 in)9 years22 of 100 (Routine)
4 March 1963St Marys, USdaily rain24.4 mm (1.0 in)2.8 mm (0.11 in)28 years16 of 100 (Routine)
9 November 1962St Marys, USdaily rain19.1 mm (0.8 in)7.9 mm (0.31 in)24 years20 of 100 (Routine)
2 September 1962St Marys, USdaily rain69.6 mm (2.7 in)28.5 mm (1.1 in)20 years32 of 100 (Routine)
7 April 1962St Marys, USdaily rain19.3 mm (0.8 in)8.4 mm (0.33 in)41 years20 of 100 (Routine)
31 March 1962St Marys, USdaily rain27.2 mm (1.1 in)5.1 mm (0.20 in)21 years17 of 100 (Routine)
4 August 1960St Marys, USdaily rain86.1 mm (3.4 in)48.0 mm (1.9 in)34 years50 of 100 (Notable)
2 July 1960St Marys, USdaily rain23.9 mm (0.9 in)7.9 mm (0.31 in)7 years13 of 100 (Routine)
24 August 1959St Marys, USdaily rain33.3 mm (1.3 in)0.8 mm (0.03 in)21 years11 of 100 (Routine)
13 June 1959St Marys, USdaily rain18.8 mm (0.7 in)1.5 mm (0.06 in)17 years11 of 100 (Routine)
10 April 1959St Marys, USdaily rain (Tie)19.6 mm (0.8 in)tie16 years2 of 100 (Routine)
10 February 1959St Marys, USdaily rain25.1 mm (1.0 in)7.6 mm (0.30 in)49 years29 of 100 (Routine)
27 September 1958St Marys, USdaily rain32.5 mm (1.3 in)5.6 mm (0.22 in)36 years20 of 100 (Routine)
21 September 1958St Marys, USdaily rain29.5 mm (1.2 in)9.9 mm (0.39 in)32 years21 of 100 (Routine)
8 August 1958St Marys, USdaily rain29.0 mm (1.1 in)2.8 mm (0.11 in)3 years7 of 100 (Routine)

Extremes by Year

1908 to 1964
Yearly extremes at St Marys: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)115.6 mm (4.6 in)194554.6 mm (2.1 in)57
Wettest five days (Rx5day)173.4 mm (6.8 in)194183.9 mm (3.3 in)57
Longest dry spell (CDD)43 days196316 days57

Wettest day (Rx1day)

Wettest day (Rx1day) at St Marys by year The wettest day of the year at St Marys, 1908 to 1964. The record is 115.6 mm (4.6 in) in 1945, marked on the chart; the median year is 54.6 mm (2.1 in). 0255075100125191019201930194019501960Record: 115.6 mm (4.6 in) in 1945
The wettest day of the year at St Marys, 1908 to 1964. The record is 115.6 mm (4.6 in) in 1945, marked on the chart; the median year is 54.6 mm (2.1 in).
Wettest day (Rx1day) at St Marys by year
YearWettest day (Rx1day)
190820.3 mm (0.8 in)
190963.5 mm (2.5 in)
191034.3 mm (1.4 in)
191150.8 mm (2.0 in)
191250.8 mm (2.0 in)
191377.5 mm (3.1 in)
191447.0 mm (1.9 in)
191557.2 mm (2.3 in)
1916100.3 mm (3.9 in)
191759.7 mm (2.4 in)
191838.1 mm (1.5 in)
191966.0 mm (2.6 in)
192052.1 mm (2.1 in)
192154.6 mm (2.1 in)
192266.0 mm (2.6 in)
192381.3 mm (3.2 in)
192474.9 mm (2.9 in)
192564.8 mm (2.6 in)
192656.4 mm (2.2 in)
192758.4 mm (2.3 in)
192838.9 mm (1.5 in)
192945.2 mm (1.8 in)
193026.7 mm (1.1 in)
193149.5 mm (1.9 in)
193274.7 mm (2.9 in)
193368.1 mm (2.7 in)
193452.6 mm (2.1 in)
193588.1 mm (3.5 in)
193679.2 mm (3.1 in)
193741.1 mm (1.6 in)
193885.1 mm (3.4 in)
193947.8 mm (1.9 in)
194067.6 mm (2.7 in)
194183.8 mm (3.3 in)
194269.3 mm (2.7 in)
194350.3 mm (2.0 in)
194481.3 mm (3.2 in)
1945115.6 mm (4.6 in)
194672.4 mm (2.9 in)
194754.6 mm (2.1 in)
194846.7 mm (1.8 in)
194943.2 mm (1.7 in)
195080.8 mm (3.2 in)
195152.8 mm (2.1 in)
195245.7 mm (1.8 in)
195347.0 mm (1.9 in)
195480.8 mm (3.2 in)
195531.0 mm (1.2 in)
195652.3 mm (2.1 in)
195735.1 mm (1.4 in)
195851.3 mm (2.0 in)
195933.3 mm (1.3 in)
196086.1 mm (3.4 in)
196134.5 mm (1.4 in)
196269.6 mm (2.7 in)
196355.6 mm (2.2 in)
196444.5 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at St Marys by year The wettest five days of the year at St Marys, 1908 to 1964. The record is 173.4 mm (6.8 in) in 1941, marked on the chart; the median year is 83.9 mm (3.3 in). 050100150200191019201930194019501960Record: 173.4 mm (6.8 in) in 1941
The wettest five days of the year at St Marys, 1908 to 1964. The record is 173.4 mm (6.8 in) in 1941, marked on the chart; the median year is 83.9 mm (3.3 in).
Wettest five days (Rx5day) at St Marys by year
YearWettest five days (Rx5day)
190830.1 mm (1.2 in)
190982.4 mm (3.2 in)
191061.4 mm (2.4 in)
191186.4 mm (3.4 in)
191266.0 mm (2.6 in)
1913146.1 mm (5.8 in)
191488.9 mm (3.5 in)
191574.9 mm (2.9 in)
1916163.9 mm (6.5 in)
191780.0 mm (3.1 in)
191875.7 mm (3.0 in)
1919106.6 mm (4.2 in)
192067.9 mm (2.7 in)
192184.9 mm (3.3 in)
1922104.1 mm (4.1 in)
192398.0 mm (3.9 in)
1924109.5 mm (4.3 in)
192582.3 mm (3.2 in)
1926113.3 mm (4.5 in)
192791.5 mm (3.6 in)
1928116.7 mm (4.6 in)
192990.2 mm (3.6 in)
193042.1 mm (1.7 in)
193167.6 mm (2.7 in)
193274.7 mm (2.9 in)
193375.7 mm (3.0 in)
193477.5 mm (3.1 in)
193597.3 mm (3.8 in)
193693.4 mm (3.7 in)
1937108.3 mm (4.3 in)
1938123.4 mm (4.9 in)
193985.4 mm (3.4 in)
1940126.5 mm (5.0 in)
1941173.4 mm (6.8 in)
194294.3 mm (3.7 in)
1943101.8 mm (4.0 in)
194481.3 mm (3.2 in)
1945157.2 mm (6.2 in)
194683.9 mm (3.3 in)
194754.6 mm (2.1 in)
194877.7 mm (3.1 in)
194968.1 mm (2.7 in)
195089.2 mm (3.5 in)
195159.2 mm (2.3 in)
195265.3 mm (2.6 in)
195380.3 mm (3.2 in)
1954105.9 mm (4.2 in)
195561.8 mm (2.4 in)
195670.1 mm (2.8 in)
195760.0 mm (2.4 in)
195894.0 mm (3.7 in)
195954.1 mm (2.1 in)
196088.4 mm (3.5 in)
196178.7 mm (3.1 in)
196283.1 mm (3.3 in)
1963115.3 mm (4.5 in)
196457.7 mm (2.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at St Marys by year The longest dry spell of the year at St Marys, 1908 to 1964. The record is 43 days in 1963, marked on the chart; the median year is 16 days. 01020304050191019201930194019501960Record: 43 days in 1963
The longest dry spell of the year at St Marys, 1908 to 1964. The record is 43 days in 1963, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at St Marys by year
YearLongest dry spell (CDD)
190810 days
190916 days
191018 days
191119 days
191218 days
191315 days
191418 days
191516 days
191618 days
191724 days
191811 days
191912 days
192024 days
192110 days
192224 days
192323 days
192426 days
192515 days
192616 days
192720 days
192819 days
192914 days
193022 days
193112 days
193217 days
193312 days
193425 days
193516 days
193623 days
193712 days
193821 days
193913 days
194014 days
194121 days
194216 days
194320 days
194415 days
194511 days
194613 days
19478 days
19489 days
194915 days
195012 days
195115 days
195229 days
195326 days
195413 days
195516 days
195614 days
195716 days
195811 days
195919 days
196014 days
196113 days
196213 days
196343 days
196422 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

50 years, 1909 to 1963

A day with at least 58.4 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 112.6 mm (4.4 in) of rain is expected about once in 100 years.

Rainfall return levels at St Marys: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years58.4 mm (2.3 in)
5 years75.9 mm (3.0 in)
10 years86.2 mm (3.4 in)
25 years97.8 mm (3.9 in)
50 years105.6 mm (4.2 in)
100 years112.6 mm (4.4 in)Longer than the 50 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, 50 years of values from 1909 to 1963.

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: 115.6 mm (4.6 in) in 1945; 100.3 mm (3.9 in) in 1916; 88.1 mm (3.5 in) in 1935.

Download the Data

  • Data for St Marys standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for St Marys 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).