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Built 2026-10-17 (17 October 2026)

Richwoods Weather Records (USC00237122)

Record envelope, standing records and threshold days for Richwoods (USC00237122), Missouri, United States, with 46 years of record.

Key Facts for Richwoods

  • Richwoods (USC00237122) is a weather station in Missouri, United States at 38.15 latitude and -90.83 longitude, 246 m (807 ft) above sea level.
  • The station reports from 1937 to 1982, 46 years of record.
  • 1,464 records set at Richwoods still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Richwoods set a daily record precipitation of 17.8 mm (0.7 in) on 30 November 1981.

About the Station

  • Location: Missouri, United States, 38.15 latitude, -90.83 longitude.
  • Elevation: 246 m (807 ft).
  • Period of record: 1937 to 1982, 46 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 Richwoods, with 2026 drawn through them The band shows the record high and record low for each calendar day at Richwoods. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Richwoods. 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 Richwoods, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan24.4 C (75.9 F)-27.2 C (-17.0 F)n/an/a
Feb26.7 C (80.1 F)-26.1 C (-15.0 F)n/an/a
Mar30.6 C (87.1 F)-23.3 C (-9.9 F)n/an/a
Apr33.3 C (91.9 F)-7.8 C (18.0 F)n/an/a
May35.6 C (96.1 F)-3.3 C (26.1 F)n/an/a
Jun38.3 C (100.9 F)2.2 C (36.0 F)n/an/a
Jul43.9 C (111.0 F)5.0 C (41.0 F)n/an/a
Aug42.8 C (109.0 F)2.8 C (37.0 F)n/an/a
Sep37.2 C (99.0 F)-1.7 C (28.9 F)n/an/a
Oct34.4 C (93.9 F)-9.4 C (15.1 F)n/an/a
Nov28.3 C (82.9 F)-16.1 C (3.0 F)n/an/a
Dec25.0 C (77.0 F)-23.3 C (-9.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Richwoods by the year they were set 1,464 records at Richwoods still stand. 1980 holds the most, with 137. 0501001501962: 661963: 1121964: 921965: 931966: 1021967: 821968: 491969: 641970: 921971: 871972: 791973: 531974: 991975: 561976: 781977: 431979: 171980: 1371981: 631962196419661968197019721974197619791981
1,464 records at Richwoods still stand. 1980 holds the most, with 137.
Standing records at Richwoods by the year they were set
Year setStanding records
196266
1963112
196492
196593
1966102
196782
196849
196964
197092
197187
197279
197353
197499
197556
197678
197743
197917
1980137
198163

Wettest Day of Each Month

Jun: 175.5 mm (6.9 in)
Record daily precipitation for each month at Richwoods The wettest day on record for each calendar month at Richwoods. The most was 175.5 mm (6.9 in) on 30 June 1957. 050100150200 Jan: 95.3 mm (3.8 in), 4 January 1950 Jan Feb: 80.0 mm (3.1 in), 10 February 1966 Feb Mar: 74.7 mm (2.9 in), 28 March 1977 Mar Apr: 67.3 mm (2.6 in), 16 April 1939 Apr May: 118.9 mm (4.7 in), 28 May 1964 May Jun: 175.5 mm (6.9 in), 30 June 1957 Jun Jul: 104.1 mm (4.1 in), 1 July 1947 Jul Aug: 113.5 mm (4.5 in), 13 August 1950 Aug Sep: 88.4 mm (3.5 in), 13 September 1945 Sep Oct: 77.5 mm (3.1 in), 23 October 1951 Oct Nov: 89.2 mm (3.5 in), 5 November 1938 Nov Dec: 85.1 mm (3.4 in), 27 December 1942 Dec
The wettest day on record for each calendar month at Richwoods. The most was 175.5 mm (6.9 in) on 30 June 1957.
Record daily precipitation for each month at Richwoods
MonthRecord daily precipitation (mm)Date
Jan95.3 mm (3.8 in)4 January 1950
Feb80.0 mm (3.1 in)10 February 1966
Mar74.7 mm (2.9 in)28 March 1977
Apr67.3 mm (2.6 in)16 April 1939
May118.9 mm (4.7 in)28 May 1964
Jun175.5 mm (6.9 in)30 June 1957
Jul104.1 mm (4.1 in)1 July 1947
Aug113.5 mm (4.5 in)13 August 1950
Sep88.4 mm (3.5 in)13 September 1945
Oct77.5 mm (3.1 in)23 October 1951
Nov89.2 mm (3.5 in)5 November 1938
Dec85.1 mm (3.4 in)27 December 1942

Period of Record Coverage

1962 to 1981
Days with data per year at Richwoods 19 years of record at Richwoods, 1962 to 1981. 5 years have data for under 90 percent of days and are left out of rankings: 1962, 1967, 1968, 1977, 1979. 1962: 226 of 365 days1963: 348 of 365 days1964: 347 of 366 days1965: 347 of 365 days1966: 352 of 365 days1967: 276 of 365 days1968: 233 of 366 days1969: 345 of 365 days1970: 362 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 364 of 365 days1974: 352 of 365 days1975: 360 of 365 days1976: 366 of 366 days1977: 243 of 365 days1979: 92 of 365 days1980: 366 of 366 days1981: 331 of 365 days1965197019751980
19 years of record at Richwoods, 1962 to 1981. 5 years have data for under 90 percent of days and are left out of rankings: 1962, 1967, 1968, 1977, 1979.
Days with data per year at Richwoods
YearDays with dataShare of yearComplete
196222662%No
196334895%Yes
196434795%Yes
196534795%Yes
196635296%Yes
196727676%No
196823364%No
196934595%Yes
197036299%Yes
1971365100%Yes
1972366100%Yes
1973364100%Yes
197435296%Yes
197536099%Yes
1976366100%Yes
197724367%No
19799225%No
1980366100%Yes
198133191%Yes

Latest Records

20
Latest records at Richwoods
DateStationRecordValueBeat old record byOld record stoodSignificance
30 November 1981Richwoods, USdaily rain17.8 mm (0.7 in)1.8 mm (0.07 in)6 years6 of 100 (Routine)
1 September 1981Richwoods, USdaily rain68.6 mm (2.7 in)34.1 mm (1.3 in)20 years34 of 100 (Routine)
24 July 1981Richwoods, USdaily rain20.8 mm (0.8 in)1.0 mm (0.04 in)6 years5 of 100 (Routine)
20 June 1981Richwoods, USdaily rain22.1 mm (0.9 in)11.9 mm (0.5 in)30 years19 of 100 (Routine)
19 June 1981Richwoods, USdaily rain45.0 mm (1.8 in)6.9 mm (0.27 in)8 years9 of 100 (Routine)
3 June 1981Richwoods, USdaily rain31.2 mm (1.2 in)7.1 mm (0.28 in)31 years17 of 100 (Routine)
14 May 1981Richwoods, USdaily rain21.3 mm (0.8 in)10.1 mm (0.4 in)4 years11 of 100 (Routine)
29 March 1981Richwoods, USdaily rain55.6 mm (2.2 in)18.8 mm (0.7 in)36 years30 of 100 (Routine)
13 February 1981Richwoods, USdaily snow depth7.6 cm (3.0 in)2.5 cm (1.0 in)1 year11 of 100 (Routine)
12 February 1981Richwoods, USdaily snow depth (Tie)7.6 cm (3.0 in)tie1 year1 of 100 (Routine)
11 February 1981Richwoods, USdaily snow depth (Tie)7.6 cm (3.0 in)tie1 year1 of 100 (Routine)
30 January 1981Richwoods, USdaily snow depth (Tie)5.1 cm (2.0 in)tie42 years4 of 100 (Routine)
30 November 1980Richwoods, USdaily snow depth5.1 cm (2.0 in)5.1 cm (2.0 in)32 years18 of 100 (Routine)
29 November 1980Richwoods, USdaily snow depth12.7 cm (5.0 in)10.2 cm (4.0 in)28 years22 of 100 (Routine)
28 November 1980Richwoods, USdaily snowfall2.5 cm (1.0 in)2.5 cm (1.0 in)43 years20 of 100 (Routine)
28 November 1980Richwoods, USdaily snow depth17.8 cm (7.0 in)5.1 cm (2.0 in)22 years15 of 100 (Routine)
27 November 1980Richwoods, USdaily snowfall16.5 cm (6.5 in)10.1 cm (4.0 in)21 years30 of 100 (Routine)
27 November 1980Richwoods, USdaily snow depth17.8 cm (7.0 in)17.8 cm (7.0 in)32 years30 of 100 (Routine)
27 October 1980Richwoods, USdaily rain23.4 mm (0.9 in)1.3 mm (0.05 in)27 years13 of 100 (Routine)
2 September 1980Richwoods, USdaily rain58.4 mm (2.3 in)31.5 mm (1.2 in)30 years35 of 100 (Notable)

Climate Trend

12 complete years, 1963 to 1980
Annual mean temperature at Richwoods as warming stripes, 1963 to 1980 One stripe for each of 12 complete years at Richwoods, 1963 to 1980. Blue stripes are years cooler than the station's own mean of 12.5 C (54.5 F); red stripes are warmer. The coolest year was 1976, at 11.9 C (53.3 F), and the warmest was 1965, at 13.4 C (56.2 F). The strongest colour marks a difference of 1.0 C (1.8 F). 1963: 12.8 C, +0.4 C from the station mean1964: 13.1 C, +0.6 C from the station mean1965: 13.4 C, +0.9 C from the station mean1966: 12.0 C, -0.5 C from the station mean1970: 12.1 C, -0.4 C from the station mean1971: 12.9 C, +0.4 C from the station mean1972: 12.0 C, -0.4 C from the station mean1973: 13.0 C, +0.5 C from the station mean1974: 12.2 C, -0.3 C from the station mean1975: 12.2 C, -0.2 C from the station mean1976: 11.9 C, -0.6 C from the station mean1980: 12.2 C, -0.3 C from the station mean196319661968197019721974197619781980
One stripe for each of 12 complete years at Richwoods, 1963 to 1980. Blue stripes are years cooler than the station's own mean of 12.5 C (54.5 F); red stripes are warmer. The coolest year was 1976, at 11.9 C (53.3 F), and the warmest was 1965, at 13.4 C (56.2 F). The strongest colour marks a difference of 1.0 C (1.8 F).
Annual mean temperature at Richwoods as warming stripes, 1963 to 1980
YearAnnual mean temperatureDifference from the station mean
196312.8 C+0.35 C
196413.1 C+0.58 C
196513.4 C+0.94 C
196612.0 C-0.48 C
197012.1 C-0.41 C
197112.9 C+0.41 C
197212.0 C-0.45 C
197313.0 C+0.50 C
197412.2 C-0.29 C
197512.2 C-0.25 C
197611.9 C-0.63 C
198012.2 C-0.30 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

1937 to 1982
Yearly extremes at Richwoods: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.9 C (111.0 F)198037.2 C (99.0 F)19
Coldest night (TNn)-27.2 C (-17.0 F)1977-21.7 C (-7.1 F)20
Wettest day (Rx1day)175.5 mm (6.9 in)195759.7 mm (2.4 in)45
Wettest five days (Rx5day)236.7 mm (9.3 in)195796.8 mm (3.8 in)45
Longest dry spell (CDD)43 days197423 days45

Hottest day (TXx)

Hottest day (TXx) at Richwoods by year The hottest day of the year at Richwoods, 1937 to 1982. The record is 43.9 C (111.0 F) in 1980, marked on the chart; the median year is 37.2 C (99.0 F). 3035404519401950196019701980Record: 43.9 C (111.0 F) in 1980
The hottest day of the year at Richwoods, 1937 to 1982. The record is 43.9 C (111.0 F) in 1980, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Richwoods by year
YearHottest day (TXx)
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
196241.1 C (106.0 F)
196340.0 C (104.0 F)
196440.0 C (104.0 F)
196537.2 C (99.0 F)
196641.1 C (106.0 F)
196735.6 C (96.1 F)
196836.1 C (97.0 F)
196935.6 C (96.1 F)
197037.8 C (100.0 F)
197137.2 C (99.0 F)
197237.2 C (99.0 F)
197336.1 C (97.0 F)
197437.8 C (100.0 F)
197536.7 C (98.1 F)
197638.3 C (100.9 F)
197736.1 C (97.0 F)
197932.8 C (91.0 F)
198043.9 C (111.0 F)
198136.1 C (97.0 F)
1982n/a

Coldest night (TNn)

Coldest night (TNn) at Richwoods by year The coldest night of the year at Richwoods, 1937 to 1982. The record is -27.2 C (-17.0 F) in 1977, marked on the chart; the median year is -21.7 C (-7.1 F). -30-20-1001019401950196019701980Record: -27.2 C (-17.0 F) in 1977
The coldest night of the year at Richwoods, 1937 to 1982. The record is -27.2 C (-17.0 F) in 1977, marked on the chart; the median year is -21.7 C (-7.1 F).
Coldest night (TNn) at Richwoods by year
YearColdest night (TNn)
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962-16.7 C (1.9 F)
1963-26.1 C (-15.0 F)
1964-26.1 C (-15.0 F)
1965-21.1 C (-6.0 F)
1966-21.7 C (-7.1 F)
1967-21.7 C (-7.1 F)
1968-14.4 C (6.1 F)
1969-12.8 C (9.0 F)
1970-23.9 C (-11.0 F)
1971-18.9 C (-2.0 F)
1972-22.2 C (-8.0 F)
1973-21.7 C (-7.1 F)
1974-21.7 C (-7.1 F)
1975-16.1 C (3.0 F)
1976-23.3 C (-9.9 F)
1977-27.2 C (-17.0 F)
1979-18.9 C (-2.0 F)
1980-25.0 C (-13.0 F)
1981-26.1 C (-15.0 F)
19822.8 C (37.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Richwoods by year The wettest day of the year at Richwoods, 1937 to 1982. The record is 175.5 mm (6.9 in) in 1957, marked on the chart; the median year is 59.7 mm (2.4 in). 05010015020019401950196019701980Record: 175.5 mm (6.9 in) in 1957
The wettest day of the year at Richwoods, 1937 to 1982. The record is 175.5 mm (6.9 in) in 1957, marked on the chart; the median year is 59.7 mm (2.4 in).
Wettest day (Rx1day) at Richwoods by year
YearWettest day (Rx1day)
193757.2 mm (2.3 in)
1938127.0 mm (5.0 in)
193976.2 mm (3.0 in)
194048.8 mm (1.9 in)
194177.5 mm (3.1 in)
194285.1 mm (3.4 in)
194349.5 mm (1.9 in)
194467.3 mm (2.6 in)
194588.4 mm (3.5 in)
194659.7 mm (2.4 in)
1947104.1 mm (4.1 in)
194871.1 mm (2.8 in)
194971.6 mm (2.8 in)
1950113.5 mm (4.5 in)
195178.2 mm (3.1 in)
195240.6 mm (1.6 in)
195353.8 mm (2.1 in)
195449.3 mm (1.9 in)
195562.7 mm (2.5 in)
195666.0 mm (2.6 in)
1957175.5 mm (6.9 in)
195853.3 mm (2.1 in)
195952.3 mm (2.1 in)
196044.5 mm (1.8 in)
196172.4 mm (2.9 in)
196266.3 mm (2.6 in)
196351.3 mm (2.0 in)
1964118.9 mm (4.7 in)
196559.2 mm (2.3 in)
196680.0 mm (3.1 in)
196757.9 mm (2.3 in)
196855.9 mm (2.2 in)
196946.2 mm (1.8 in)
197056.4 mm (2.2 in)
197162.7 mm (2.5 in)
197252.6 mm (2.1 in)
197352.6 mm (2.1 in)
197446.0 mm (1.8 in)
197557.7 mm (2.3 in)
197632.8 mm (1.3 in)
197799.6 mm (3.9 in)
197922.6 mm (0.9 in)
198073.2 mm (2.9 in)
198168.6 mm (2.7 in)
198224.1 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Richwoods by year The wettest five days of the year at Richwoods, 1937 to 1982. The record is 236.7 mm (9.3 in) in 1957, marked on the chart; the median year is 96.8 mm (3.8 in). 010020030019401950196019701980Record: 236.7 mm (9.3 in) in 1957
The wettest five days of the year at Richwoods, 1937 to 1982. The record is 236.7 mm (9.3 in) in 1957, marked on the chart; the median year is 96.8 mm (3.8 in).
Wettest five days (Rx5day) at Richwoods by year
YearWettest five days (Rx5day)
193796.5 mm (3.8 in)
1938158.8 mm (6.3 in)
1939120.6 mm (4.7 in)
194081.6 mm (3.2 in)
194196.8 mm (3.8 in)
1942104.1 mm (4.1 in)
1943102.8 mm (4.0 in)
194496.5 mm (3.8 in)
1945153.6 mm (6.0 in)
1946108.7 mm (4.3 in)
1947165.1 mm (6.5 in)
194880.0 mm (3.1 in)
1949102.7 mm (4.0 in)
1950178.0 mm (7.0 in)
1951116.8 mm (4.6 in)
195254.2 mm (2.1 in)
195365.7 mm (2.6 in)
195460.5 mm (2.4 in)
195574.2 mm (2.9 in)
195689.7 mm (3.5 in)
1957236.7 mm (9.3 in)
1958105.6 mm (4.2 in)
195964.3 mm (2.5 in)
196046.9 mm (1.8 in)
196173.4 mm (2.9 in)
196280.3 mm (3.2 in)
196373.2 mm (2.9 in)
1964131.9 mm (5.2 in)
196573.7 mm (2.9 in)
196690.1 mm (3.5 in)
196773.6 mm (2.9 in)
196899.5 mm (3.9 in)
196997.8 mm (3.9 in)
1970111.0 mm (4.4 in)
1971110.2 mm (4.3 in)
197268.9 mm (2.7 in)
1973100.3 mm (3.9 in)
197478.7 mm (3.1 in)
1975101.6 mm (4.0 in)
197653.1 mm (2.1 in)
1977146.6 mm (5.8 in)
197937.3 mm (1.5 in)
1980102.9 mm (4.1 in)
198197.8 mm (3.9 in)
19828.4 mm (0.33 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Richwoods by year The longest dry spell of the year at Richwoods, 1937 to 1982. The record is 43 days in 1974, marked on the chart; the median year is 23 days. 0102030405019401950196019701980Record: 43 days in 1974
The longest dry spell of the year at Richwoods, 1937 to 1982. The record is 43 days in 1974, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Richwoods by year
YearLongest dry spell (CDD)
193726 days
193824 days
193921 days
194024 days
194125 days
194224 days
194330 days
194429 days
194516 days
194619 days
194715 days
194822 days
194920 days
195030 days
195113 days
195224 days
195326 days
195419 days
195523 days
195627 days
195718 days
195825 days
195921 days
196017 days
196115 days
196222 days
196335 days
196429 days
196516 days
196629 days
196724 days
196818 days
196920 days
197025 days
197119 days
197216 days
197320 days
197443 days
197529 days
197625 days
197721 days
197925 days
198027 days
198119 days
19825 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

39 years, 1938 to 1981

A day with at least 61.2 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 181.5 mm (7.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Richwoods: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years61.2 mm (2.4 in)
5 years82.0 mm (3.2 in)
10 years99.5 mm (3.9 in)
25 years126.9 mm (5.0 in)
50 years151.9 mm (6.0 in)Longer than the 39 years of record
100 years181.5 mm (7.1 in)Longer than the 39 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, 39 years of values from 1938 to 1981.

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: 175.5 mm (6.9 in) in 1957; 127.0 mm (5.0 in) in 1938; 118.9 mm (4.7 in) in 1964.

Download the Data

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