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Data as of 2025-12-31
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Built 2026-10-17 (17 October 2026)

Roby Weather Records (USC00237214)

Record envelope, standing records and threshold days for Roby (USC00237214), Missouri, United States, with 38 years of record.

Key Facts for Roby

  • Roby (USC00237214) is a weather station in Missouri, United States at 37.50 latitude and -92.13 longitude, 427 m (1,401 ft) above sea level.
  • The station reports from 1941 to 1978, 38 years of record.
  • 0 records set at Roby still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Roby set a daily record precipitation of 44.5 mm (1.8 in) on 3 August 1978.

About the Station

  • Location: Missouri, United States, 37.50 latitude, -92.13 longitude.
  • Elevation: 427 m (1,401 ft).
  • Period of record: 1941 to 1978, 38 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 Roby, with 2026 drawn through them The band shows the record high and record low for each calendar day at Roby. 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 Roby. 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 Roby, 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 Roby by the year they were set 0 records at Roby still stand. 00000000000
0 records at Roby still stand.
Standing records at Roby by the year they were set
Year setStanding records

Wettest Day of Each Month

May: 133.4 mm (5.3 in)
Record daily precipitation for each month at Roby The wettest day on record for each calendar month at Roby. The most was 133.4 mm (5.3 in) on 31 May 1956. 050100150 Jan: 60.5 mm (2.4 in), 4 January 1950 Jan Feb: 61.7 mm (2.4 in), 13 February 1946 Feb Mar: 69.9 mm (2.8 in), 28 March 1977 Mar Apr: 121.9 mm (4.8 in), 13 April 1945 Apr May: 133.4 mm (5.3 in), 31 May 1956 May Jun: 87.1 mm (3.4 in), 30 June 1951 Jun Jul: 93.0 mm (3.7 in), 28 July 1946 Jul Aug: 108.2 mm (4.3 in), 14 August 1946 Aug Sep: 99.1 mm (3.9 in), 23 September 1970 Sep Oct: 112.0 mm (4.4 in), 30 October 1942 Oct Nov: 91.2 mm (3.6 in), 4 November 1959 Nov Dec: 73.7 mm (2.9 in), 17 December 1957 Dec
The wettest day on record for each calendar month at Roby. The most was 133.4 mm (5.3 in) on 31 May 1956.
Record daily precipitation for each month at Roby
MonthRecord daily precipitation (mm)Date
Jan60.5 mm (2.4 in)4 January 1950
Feb61.7 mm (2.4 in)13 February 1946
Mar69.9 mm (2.8 in)28 March 1977
Apr121.9 mm (4.8 in)13 April 1945
May133.4 mm (5.3 in)31 May 1956
Jun87.1 mm (3.4 in)30 June 1951
Jul93.0 mm (3.7 in)28 July 1946
Aug108.2 mm (4.3 in)14 August 1946
Sep99.1 mm (3.9 in)23 September 1970
Oct112.0 mm (4.4 in)30 October 1942
Nov91.2 mm (3.6 in)4 November 1959
Dec73.7 mm (2.9 in)17 December 1957

Latest Records

20
Latest records at Roby
DateStationRecordValueBeat old record byOld record stoodSignificance
3 August 1978Roby, USdaily rain44.5 mm (1.8 in)30.8 mm (1.2 in)4 years22 of 100 (Routine)
24 July 1978Roby, USdaily rain32.5 mm (1.3 in)6.8 mm (0.27 in)16 years12 of 100 (Routine)
15 July 1978Roby, USdaily rain38.1 mm (1.5 in)18.0 mm (0.7 in)25 years22 of 100 (Routine)
11 July 1978Roby, USdaily rain47.0 mm (1.9 in)34.6 mm (1.4 in)17 years32 of 100 (Routine)
17 January 1978Roby, USdaily rain27.9 mm (1.1 in)8.1 mm (0.32 in)24 years17 of 100 (Routine)
1 December 1977Roby, USdaily rain29.2 mm (1.1 in)16.0 mm (0.6 in)8 years18 of 100 (Routine)
8 October 1977Roby, USdaily rain19.3 mm (0.8 in)9.1 mm (0.36 in)10 years12 of 100 (Routine)
17 August 1977Roby, USdaily rain31.5 mm (1.2 in)6.9 mm (0.27 in)18 years12 of 100 (Routine)
22 June 1977Roby, USdaily rain58.4 mm (2.3 in)37.8 mm (1.5 in)10 years35 of 100 (Notable)
12 June 1977Roby, USdaily rain31.2 mm (1.2 in)11.4 mm (0.4 in)6 years12 of 100 (Routine)
28 March 1977Roby, USmonthly rain69.9 mm (2.8 in)1.3 mm (0.05 in)4 years15 of 100 (Routine)
27 March 1977Roby, USdaily rain19.1 mm (0.8 in)4.9 mm (0.19 in)30 years16 of 100 (Routine)
12 March 1977Roby, USdaily rain26.7 mm (1.1 in)4.1 mm (0.16 in)2 years6 of 100 (Routine)
3 July 1976Roby, USdaily rain82.0 mm (3.2 in)46.7 mm (1.8 in)7 years38 of 100 (Notable)
24 June 1976Roby, USdaily rain56.6 mm (2.2 in)38.3 mm (1.5 in)19 years38 of 100 (Notable)
5 March 1976Roby, USdaily rain28.4 mm (1.1 in)6.0 mm (0.24 in)13 years11 of 100 (Routine)
25 January 1976Roby, USdaily rain11.7 mm (0.5 in)8.4 mm (0.33 in)20 years17 of 100 (Routine)
29 December 1975Roby, USdaily rain18.8 mm (0.7 in)2.0 mm (0.08 in)12 years7 of 100 (Routine)
27 November 1975Roby, USdaily snowfall11.2 cm (4.4 in)6.1 cm (2.4 in)16 years19 of 100 (Routine)
26 November 1975Roby, USdaily snowfall8.4 cm (3.3 in)8.4 cm (3.3 in)33 years29 of 100 (Routine)

Extremes by Year

1941 to 1978
Yearly extremes at Roby: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)133.4 mm (5.3 in)195668.9 mm (2.7 in)38
Wettest five days (Rx5day)214.3 mm (8.4 in)1945105.3 mm (4.1 in)38
Longest dry spell (CDD)38 days197622 days38

Wettest day (Rx1day)

Wettest day (Rx1day) at Roby by year The wettest day of the year at Roby, 1941 to 1978. The record is 133.4 mm (5.3 in) in 1956, marked on the chart; the median year is 68.9 mm (2.7 in). 255075100125150195019601970Record: 133.4 mm (5.3 in) in 1956
The wettest day of the year at Roby, 1941 to 1978. The record is 133.4 mm (5.3 in) in 1956, marked on the chart; the median year is 68.9 mm (2.7 in).
Wettest day (Rx1day) at Roby by year
YearWettest day (Rx1day)
194188.1 mm (3.5 in)
1942112.0 mm (4.4 in)
194356.6 mm (2.2 in)
194450.3 mm (2.0 in)
1945121.9 mm (4.8 in)
1946108.2 mm (4.3 in)
194765.0 mm (2.6 in)
194878.0 mm (3.1 in)
194961.0 mm (2.4 in)
1950101.6 mm (4.0 in)
1951102.6 mm (4.0 in)
195252.8 mm (2.1 in)
195338.4 mm (1.5 in)
195450.8 mm (2.0 in)
195550.5 mm (2.0 in)
1956133.4 mm (5.3 in)
195776.7 mm (3.0 in)
195866.0 mm (2.6 in)
195991.2 mm (3.6 in)
196049.5 mm (1.9 in)
196150.5 mm (2.0 in)
196274.2 mm (2.9 in)
196369.3 mm (2.7 in)
196458.9 mm (2.3 in)
196573.9 mm (2.9 in)
196672.4 mm (2.9 in)
196758.2 mm (2.3 in)
196857.9 mm (2.3 in)
196976.2 mm (3.0 in)
197099.1 mm (3.9 in)
197182.6 mm (3.3 in)
197260.2 mm (2.4 in)
197368.6 mm (2.7 in)
197460.2 mm (2.4 in)
197545.7 mm (1.8 in)
197682.0 mm (3.2 in)
197769.9 mm (2.8 in)
197847.0 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Roby by year The wettest five days of the year at Roby, 1941 to 1978. The record is 214.3 mm (8.4 in) in 1945, marked on the chart; the median year is 105.3 mm (4.1 in). 050100150200250195019601970Record: 214.3 mm (8.4 in) in 1945
The wettest five days of the year at Roby, 1941 to 1978. The record is 214.3 mm (8.4 in) in 1945, marked on the chart; the median year is 105.3 mm (4.1 in).
Wettest five days (Rx5day) at Roby by year
YearWettest five days (Rx5day)
194188.1 mm (3.5 in)
1942112.0 mm (4.4 in)
1943112.0 mm (4.4 in)
194498.6 mm (3.9 in)
1945214.3 mm (8.4 in)
1946175.3 mm (6.9 in)
1947107.2 mm (4.2 in)
1948150.4 mm (5.9 in)
1949113.0 mm (4.4 in)
1950129.8 mm (5.1 in)
1951136.9 mm (5.4 in)
195272.2 mm (2.8 in)
195338.4 mm (1.5 in)
195466.8 mm (2.6 in)
195578.7 mm (3.1 in)
1956135.9 mm (5.4 in)
1957168.2 mm (6.6 in)
1958121.9 mm (4.8 in)
195991.2 mm (3.6 in)
196079.8 mm (3.1 in)
1961116.9 mm (4.6 in)
196298.1 mm (3.9 in)
1963124.7 mm (4.9 in)
196478.7 mm (3.1 in)
1965107.9 mm (4.2 in)
1966103.4 mm (4.1 in)
196790.8 mm (3.6 in)
196887.9 mm (3.5 in)
196993.5 mm (3.7 in)
1970143.3 mm (5.6 in)
1971122.5 mm (4.8 in)
197291.7 mm (3.6 in)
1973128.3 mm (5.1 in)
197481.6 mm (3.2 in)
197577.8 mm (3.1 in)
197688.9 mm (3.5 in)
1977149.6 mm (5.9 in)
1978103.3 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Roby by year The longest dry spell of the year at Roby, 1941 to 1978. The record is 38 days in 1976, marked on the chart; the median year is 22 days. 10203040195019601970Record: 38 days in 1976
The longest dry spell of the year at Roby, 1941 to 1978. The record is 38 days in 1976, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Roby by year
YearLongest dry spell (CDD)
194119 days
194224 days
194328 days
194426 days
194515 days
194627 days
194731 days
194815 days
194920 days
195034 days
195114 days
195225 days
195324 days
195422 days
195522 days
195632 days
195722 days
195825 days
195914 days
196020 days
196125 days
196225 days
196334 days
196429 days
196518 days
196619 days
196719 days
196818 days
196916 days
197023 days
197114 days
197222 days
197319 days
197415 days
197523 days
197638 days
197718 days
197823 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

36 years, 1942 to 1977

A day with at least 68.0 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 155.5 mm (6.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Roby: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years68.0 mm (2.7 in)
5 years88.6 mm (3.5 in)
10 years103.3 mm (4.1 in)
25 years123.2 mm (4.9 in)
50 years139.0 mm (5.5 in)Longer than the 36 years of record
100 years155.5 mm (6.1 in)Longer than the 36 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, 36 years of values from 1942 to 1977.

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: 133.4 mm (5.3 in) in 1956; 121.9 mm (4.8 in) in 1945; 112.0 mm (4.4 in) in 1942.

Download the Data

  • Data for Roby standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Roby 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).