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Chicoasen (Cfe) Weather Records (MXN00007035)

Record envelope, standing records and threshold days for Chicoasen (Cfe) (MXN00007035), Mexico, with 39 years of record.

Key Facts for Chicoasen (Cfe)

  • Chicoasen (Cfe) (MXN00007035) is a weather station in Mexico at 16.93 latitude and -93.08 longitude, 1,240 m (4,068 ft) above sea level.
  • The station reports from 1961 to 1999, 39 years of record.
  • 1,464 records set at Chicoasen (Cfe) still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Chicoasen (Cfe) set a daily record low minimum temperature of 11.7 C (53.1 F) on 30 December 1999.

About the Station

  • Location: Mexico, 16.93 latitude, -93.08 longitude.
  • Elevation: 1,240 m (4,068 ft).
  • Period of record: 1961 to 1999, 39 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Chicoasen (Cfe), with 2026 drawn through them The band shows the record high and record low for each calendar day at Chicoasen (Cfe). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 01020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Chicoasen (Cfe). 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 Chicoasen (Cfe), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan38.9 C (102.0 F)10.6 C (51.1 F)n/an/a
Feb42.2 C (108.0 F)10.0 C (50.0 F)n/an/a
Mar45.0 C (113.0 F)7.8 C (46.0 F)n/an/a
Apr44.4 C (111.9 F)15.0 C (59.0 F)n/an/a
May46.1 C (115.0 F)16.1 C (61.0 F)n/an/a
Jun41.1 C (106.0 F)18.3 C (64.9 F)n/an/a
Jul40.0 C (104.0 F)18.9 C (66.0 F)n/an/a
Aug39.4 C (102.9 F)19.4 C (66.9 F)n/an/a
Sep38.9 C (102.0 F)17.8 C (64.0 F)n/an/a
Oct40.0 C (104.0 F)13.9 C (57.0 F)n/an/a
Nov38.9 C (102.0 F)12.8 C (55.0 F)n/an/a
Dec40.0 C (104.0 F)10.0 C (50.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Chicoasen (Cfe) by the year they were set 1,464 records at Chicoasen (Cfe) still stand. 1969 holds the most, with 95. 02550751001961: 501962: 581963: 561964: 601965: 661966: 391967: 231968: 371969: 951970: 351971: 401972: 451973: 611974: 611975: 251976: 301977: 571978: 471979: 391980: 541981: 241982: 171983: 181984: 501985: 301986: 281987: 521988: 181989: 201990: 111991: 101992: 181993: 331994: 251995: 141996: 371997: 251998: 151999: 411961196519691973197719811985198919931997
1,464 records at Chicoasen (Cfe) still stand. 1969 holds the most, with 95.
Standing records at Chicoasen (Cfe) by the year they were set
Year setStanding records
196150
196258
196356
196460
196566
196639
196723
196837
196995
197035
197140
197245
197361
197461
197525
197630
197757
197847
197939
198054
198124
198217
198318
198450
198530
198628
198752
198818
198920
199011
199110
199218
199333
199425
199514
199637
199725
199815
199941

All-Time Record Progression

2 new records
When Chicoasen (Cfe) set new all-time records 2 all-time records were set at Chicoasen (Cfe) between 14 December 1997 and 12 March 1998. Each dot is a new record. Record low maximum temperatureRecord low minimum temperature14 December 1997: Record low maximum temperature 17.8 C (64.0 F)12 March 1998: Record low minimum temperature 7.8 C (46.0 F)
2 all-time records were set at Chicoasen (Cfe) between 14 December 1997 and 12 March 1998. Each dot is a new record.
When Chicoasen (Cfe) set new all-time records
DateKindDetail
1997-12-14Record low maximum temperatureRecord low maximum temperature 17.8 C (64.0 F)
1998-03-12Record low minimum temperatureRecord low minimum temperature 7.8 C (46.0 F)

Wettest Day of Each Month

Aug: 115.8 mm (4.6 in)
Record daily precipitation for each month at Chicoasen (Cfe) The wettest day on record for each calendar month at Chicoasen (Cfe). The most was 115.8 mm (4.6 in) on 20 August 1973. 050100150 Jan: 22.4 mm (0.9 in), 27 January 1967 Jan Feb: 31.0 mm (1.2 in), 3 February 1963 Feb Mar: 23.9 mm (0.9 in), 14 March 1983 Mar Apr: 66.5 mm (2.6 in), 28 April 1972 Apr May: 96.5 mm (3.8 in), 30 May 1986 May Jun: 96.8 mm (3.8 in), 24 June 1991 Jun Jul: 108.0 mm (4.3 in), 3 July 1987 Jul Aug: 115.8 mm (4.6 in), 20 August 1973 Aug Sep: 88.9 mm (3.5 in), 22 September 1968 Sep Oct: 115.8 mm (4.6 in), 22 October 1998 Oct Nov: 68.1 mm (2.7 in), 1 November 1998 Nov Dec: 58.9 mm (2.3 in), 22 December 1967 Dec
The wettest day on record for each calendar month at Chicoasen (Cfe). The most was 115.8 mm (4.6 in) on 20 August 1973.
Record daily precipitation for each month at Chicoasen (Cfe)
MonthRecord daily precipitation (mm)Date
Jan22.4 mm (0.9 in)27 January 1967
Feb31.0 mm (1.2 in)3 February 1963
Mar23.9 mm (0.9 in)14 March 1983
Apr66.5 mm (2.6 in)28 April 1972
May96.5 mm (3.8 in)30 May 1986
Jun96.8 mm (3.8 in)24 June 1991
Jul108.0 mm (4.3 in)3 July 1987
Aug115.8 mm (4.6 in)20 August 1973
Sep88.9 mm (3.5 in)22 September 1968
Oct115.8 mm (4.6 in)22 October 1998
Nov68.1 mm (2.7 in)1 November 1998
Dec58.9 mm (2.3 in)22 December 1967

Period of Record Coverage

1961 to 1999
Days with data per year at Chicoasen (Cfe) 39 years of record at Chicoasen (Cfe), 1961 to 1999. 2 years have data for under 90 percent of days and are left out of rankings: 1961, 1998. 1961: 184 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 365 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 364 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 364 of 365 days1988: 334 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 364 of 365 days1998: 328 of 365 days1999: 365 of 365 days1965197019751980198519901995
39 years of record at Chicoasen (Cfe), 1961 to 1999. 2 years have data for under 90 percent of days and are left out of rankings: 1961, 1998.
Days with data per year at Chicoasen (Cfe)
YearDays with dataShare of yearComplete
196118450%No
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972365100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983364100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987364100%Yes
198833491%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997364100%Yes
199832890%No
1999365100%Yes

Latest Records

20
Latest records at Chicoasen (Cfe)
DateStationRecordValueBeat old record byOld record stoodSignificance
30 December 1999Chicoasen (Cfe), MXdaily low min11.7 C (53.1 F)2.7 C (4.9 F)26 years22 of 100 (Routine)
21 December 1999Chicoasen (Cfe), MXdaily rain15.2 mm (0.6 in)13.7 mm (0.5 in)26 years20 of 100 (Routine)
17 December 1999Chicoasen (Cfe), MXdaily low max23.9 C (75.0 F)1.1 C (2.0 F)16 years11 of 100 (Routine)
16 December 1999Chicoasen (Cfe), MXdaily low max23.3 C (73.9 F)1.7 C (3.1 F)1 year7 of 100 (Routine)
5 December 1999Chicoasen (Cfe), MXdaily low min (Tie)15.0 C (59.0 F)tie10 years1 of 100 (Routine)
4 December 1999Chicoasen (Cfe), MXdaily low min (Tie)15.0 C (59.0 F)tie24 years2 of 100 (Routine)
3 December 1999Chicoasen (Cfe), MXdaily low min12.2 C (54.0 F)3.4 C (6.1 F)37 years28 of 100 (Routine)
3 December 1999Chicoasen (Cfe), MXdaily low max24.4 C (75.9 F)0.6 C (1.1 F)22 years10 of 100 (Routine)
2 December 1999Chicoasen (Cfe), MXdaily low min12.8 C (55.0 F)2.2 C (4.0 F)28 years20 of 100 (Routine)
1 December 1999Chicoasen (Cfe), MXdaily low min13.3 C (55.9 F)1.1 C (2.0 F)12 years10 of 100 (Routine)
30 November 1999Chicoasen (Cfe), MXdaily low min (Tie)14.4 C (57.9 F)tie12 years1 of 100 (Routine)
29 November 1999Chicoasen (Cfe), MXdaily low min15.0 C (59.0 F)0.6 C (1.1 F)18 years10 of 100 (Routine)
27 November 1999Chicoasen (Cfe), MXdaily low max22.2 C (72.0 F)0.6 C (1.1 F)6 years6 of 100 (Routine)
27 November 1999Chicoasen (Cfe), MXdaily low min (Tie)13.9 C (57.0 F)tie37 years3 of 100 (Routine)
26 November 1999Chicoasen (Cfe), MXdaily low min14.4 C (57.9 F)0.6 C (1.1 F)37 years16 of 100 (Routine)
21 November 1999Chicoasen (Cfe), MXdaily low min13.9 C (57.0 F)1.1 C (2.0 F)28 years16 of 100 (Routine)
20 November 1999Chicoasen (Cfe), MXdaily low max (Tie)25.6 C (78.1 F)tie29 years2 of 100 (Routine)
16 November 1999Chicoasen (Cfe), MXdaily low max (Tie)25.0 C (77.0 F)tie8 years1 of 100 (Routine)
10 November 1999Chicoasen (Cfe), MXdaily low max (Tie)25.0 C (77.0 F)tie8 years1 of 100 (Routine)
8 November 1999Chicoasen (Cfe), MXdaily low max25.0 C (77.0 F)1.1 C (2.0 F)37 years17 of 100 (Routine)

Climate Trend

36 complete years, 1962 to 1999
Annual mean temperature at Chicoasen (Cfe) as warming stripes, 1962 to 1999 One stripe for each of 36 complete years at Chicoasen (Cfe), 1962 to 1999. Blue stripes are years cooler than the station's own mean of 27.0 C (80.6 F); red stripes are warmer. The coolest year was 1999, at 25.4 C (77.7 F), and the warmest was 1969, at 28.7 C (83.6 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1962: 28.5 C, +1.5 C from the station mean1963: 28.1 C, +1.1 C from the station mean1964: 28.5 C, +1.5 C from the station mean1965: 28.5 C, +1.5 C from the station mean1966: 28.0 C, +1.0 C from the station mean1967: 27.9 C, +0.9 C from the station mean1968: 27.9 C, +0.9 C from the station mean1969: 28.7 C, +1.7 C from the station mean1970: 27.3 C, +0.3 C from the station mean1971: 27.5 C, +0.5 C from the station mean1972: 28.1 C, +1.1 C from the station mean1973: 27.5 C, +0.5 C from the station mean1974: 26.7 C, -0.3 C from the station mean1975: 27.4 C, +0.4 C from the station mean1976: 27.1 C, +0.1 C from the station mean1977: 28.0 C, +1.0 C from the station mean1978: 27.8 C, +0.8 C from the station mean1979: 27.5 C, +0.5 C from the station mean1980: 27.9 C, +0.9 C from the station mean1981: 26.8 C, -0.2 C from the station mean1982: 26.2 C, -0.8 C from the station mean1983: 26.2 C, -0.8 C from the station mean1984: 25.6 C, -1.4 C from the station mean1985: 25.9 C, -1.1 C from the station mean1986: 25.8 C, -1.2 C from the station mean1987: 25.8 C, -1.2 C from the station mean1989: 26.0 C, -1.0 C from the station mean1990: 26.5 C, -0.5 C from the station mean1991: 26.9 C, -0.1 C from the station mean1992: 26.3 C, -0.7 C from the station mean1993: 26.0 C, -1.0 C from the station mean1994: 26.4 C, -0.6 C from the station mean1995: 26.2 C, -0.8 C from the station mean1996: 25.5 C, -1.5 C from the station mean1997: 25.9 C, -1.1 C from the station mean1999: 25.4 C, -1.6 C from the station mean19621965197019751980198519901995
One stripe for each of 36 complete years at Chicoasen (Cfe), 1962 to 1999. Blue stripes are years cooler than the station's own mean of 27.0 C (80.6 F); red stripes are warmer. The coolest year was 1999, at 25.4 C (77.7 F), and the warmest was 1969, at 28.7 C (83.6 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Chicoasen (Cfe) as warming stripes, 1962 to 1999
YearAnnual mean temperatureDifference from the station mean
196228.5 C+1.46 C
196328.1 C+1.05 C
196428.5 C+1.46 C
196528.5 C+1.50 C
196628.0 C+1.00 C
196727.9 C+0.86 C
196827.9 C+0.90 C
196928.7 C+1.67 C
197027.3 C+0.34 C
197127.5 C+0.48 C
197228.1 C+1.06 C
197327.5 C+0.46 C
197426.7 C-0.27 C
197527.4 C+0.38 C
197627.1 C+0.12 C
197728.0 C+0.96 C
197827.8 C+0.81 C
197927.5 C+0.45 C
198027.9 C+0.85 C
198126.8 C-0.19 C
198226.2 C-0.83 C
198326.2 C-0.76 C
198425.6 C-1.37 C
198525.9 C-1.07 C
198625.8 C-1.22 C
198725.8 C-1.22 C
198926.0 C-0.96 C
199026.5 C-0.53 C
199126.9 C-0.11 C
199226.3 C-0.69 C
199326.0 C-1.04 C
199426.4 C-0.64 C
199526.2 C-0.77 C
199625.5 C-1.50 C
199725.9 C-1.06 C
199925.4 C-1.63 C

The annual mean temperature here has fallen by 0.8 C (0.6 to 0.9) per decade over 1962 to 1999. In Fahrenheit: 1.4 F (1.1 to 1.7) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Chicoasen (Cfe)
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.8 C (-0.9 to -0.6) per decade-1.4 F (-1.7 to -1.1) per decade1962 to 199936Fall
Mean daily maximum-0.9 C (-1.1 to -0.6) per decade-1.6 F (-2.0 to -1.1) per decade1962 to 199936Fall
Mean daily minimum-0.7 C (-0.9 to -0.5) per decade-1.3 F (-1.7 to -0.9) per decade1962 to 199936Fall

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

1961 to 1999
Yearly extremes at Chicoasen (Cfe): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)46.1 C (115.0 F)197240.6 C (105.1 F)39
Coldest night (TNn)7.8 C (46.0 F)199812.2 C (54.0 F)39
Wettest day (Rx1day)115.8 mm (4.6 in)197366.3 mm (2.6 in)39
Wettest five days (Rx5day)196.1 mm (7.7 in)1986125.5 mm (4.9 in)39
Longest dry spell (CDD)126 days197767 days39

Hottest day (TXx)

Hottest day (TXx) at Chicoasen (Cfe) by year The hottest day of the year at Chicoasen (Cfe), 1961 to 1999. The record is 46.1 C (115.0 F) in 1972, marked on the chart; the median year is 40.6 C (105.1 F). 3537.54042.54547.5197019801990Record: 46.1 C (115.0 F) in 1972
The hottest day of the year at Chicoasen (Cfe), 1961 to 1999. The record is 46.1 C (115.0 F) in 1972, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Chicoasen (Cfe) by year
YearHottest day (TXx)
196137.2 C (99.0 F)
196241.1 C (106.0 F)
196340.6 C (105.1 F)
196442.8 C (109.0 F)
196541.7 C (107.1 F)
196640.6 C (105.1 F)
196741.1 C (106.0 F)
196840.0 C (104.0 F)
196942.8 C (109.0 F)
197043.3 C (109.9 F)
197144.4 C (111.9 F)
197246.1 C (115.0 F)
197345.0 C (113.0 F)
197444.4 C (111.9 F)
197543.3 C (109.9 F)
197642.2 C (108.0 F)
197742.2 C (108.0 F)
197842.8 C (109.0 F)
197943.3 C (109.9 F)
198042.8 C (109.0 F)
198143.3 C (109.9 F)
198240.0 C (104.0 F)
198341.1 C (106.0 F)
198440.6 C (105.1 F)
198540.6 C (105.1 F)
198638.9 C (102.0 F)
198741.1 C (106.0 F)
198840.0 C (104.0 F)
198938.9 C (102.0 F)
199038.9 C (102.0 F)
199140.0 C (104.0 F)
199239.4 C (102.9 F)
199340.0 C (104.0 F)
199440.0 C (104.0 F)
199540.0 C (104.0 F)
199639.4 C (102.9 F)
199738.9 C (102.0 F)
199840.6 C (105.1 F)
199940.0 C (104.0 F)

Coldest night (TNn)

Coldest night (TNn) at Chicoasen (Cfe) by year The coldest night of the year at Chicoasen (Cfe), 1961 to 1999. The record is 7.8 C (46.0 F) in 1998, marked on the chart; the median year is 12.2 C (54.0 F). 6810121416197019801990Record: 7.8 C (46.0 F) in 1998
The coldest night of the year at Chicoasen (Cfe), 1961 to 1999. The record is 7.8 C (46.0 F) in 1998, marked on the chart; the median year is 12.2 C (54.0 F).
Coldest night (TNn) at Chicoasen (Cfe) by year
YearColdest night (TNn)
196113.9 C (57.0 F)
196215.0 C (59.0 F)
196310.6 C (51.1 F)
196415.0 C (59.0 F)
196512.2 C (54.0 F)
196612.2 C (54.0 F)
196714.4 C (57.9 F)
196812.8 C (55.0 F)
196912.8 C (55.0 F)
197012.8 C (55.0 F)
197110.6 C (51.1 F)
197210.0 C (50.0 F)
197310.0 C (50.0 F)
197414.4 C (57.9 F)
197512.8 C (55.0 F)
197612.8 C (55.0 F)
197713.9 C (57.0 F)
197812.8 C (55.0 F)
197912.8 C (55.0 F)
198010.6 C (51.1 F)
198112.2 C (54.0 F)
198210.6 C (51.1 F)
198311.7 C (53.1 F)
198412.2 C (54.0 F)
198511.1 C (52.0 F)
198611.1 C (52.0 F)
198710.6 C (51.1 F)
198812.2 C (54.0 F)
198910.6 C (51.1 F)
199015.6 C (60.1 F)
199113.9 C (57.0 F)
199215.0 C (59.0 F)
199312.8 C (55.0 F)
199412.8 C (55.0 F)
199513.9 C (57.0 F)
199610.6 C (51.1 F)
199710.0 C (50.0 F)
19987.8 C (46.0 F)
199911.7 C (53.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Chicoasen (Cfe) by year The wettest day of the year at Chicoasen (Cfe), 1961 to 1999. The record is 115.8 mm (4.6 in) in 1973, marked on the chart; the median year is 66.3 mm (2.6 in). 255075100125197019801990Record: 115.8 mm (4.6 in) in 1973
The wettest day of the year at Chicoasen (Cfe), 1961 to 1999. The record is 115.8 mm (4.6 in) in 1973, marked on the chart; the median year is 66.3 mm (2.6 in).
Wettest day (Rx1day) at Chicoasen (Cfe) by year
YearWettest day (Rx1day)
196147.8 mm (1.9 in)
196261.5 mm (2.4 in)
196365.8 mm (2.6 in)
196484.1 mm (3.3 in)
196553.3 mm (2.1 in)
196666.3 mm (2.6 in)
196758.9 mm (2.3 in)
196888.9 mm (3.5 in)
196970.4 mm (2.8 in)
197048.8 mm (1.9 in)
197150.8 mm (2.0 in)
197266.5 mm (2.6 in)
1973115.8 mm (4.6 in)
197462.5 mm (2.5 in)
197546.0 mm (1.8 in)
197675.4 mm (3.0 in)
197756.9 mm (2.2 in)
197872.4 mm (2.9 in)
197981.8 mm (3.2 in)
198063.5 mm (2.5 in)
198169.9 mm (2.8 in)
198270.9 mm (2.8 in)
198357.4 mm (2.3 in)
198473.7 mm (2.9 in)
198587.4 mm (3.4 in)
198696.5 mm (3.8 in)
1987108.0 mm (4.3 in)
198866.3 mm (2.6 in)
198964.8 mm (2.6 in)
199058.9 mm (2.3 in)
199196.8 mm (3.8 in)
199261.7 mm (2.4 in)
199358.2 mm (2.3 in)
199434.8 mm (1.4 in)
199549.3 mm (1.9 in)
199666.3 mm (2.6 in)
199768.6 mm (2.7 in)
1998115.8 mm (4.6 in)
199993.5 mm (3.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Chicoasen (Cfe) by year The wettest five days of the year at Chicoasen (Cfe), 1961 to 1999. The record is 196.1 mm (7.7 in) in 1986, marked on the chart; the median year is 125.5 mm (4.9 in). 50100150200197019801990Record: 196.1 mm (7.7 in) in 1986
The wettest five days of the year at Chicoasen (Cfe), 1961 to 1999. The record is 196.1 mm (7.7 in) in 1986, marked on the chart; the median year is 125.5 mm (4.9 in).
Wettest five days (Rx5day) at Chicoasen (Cfe) by year
YearWettest five days (Rx5day)
196155.9 mm (2.2 in)
196295.3 mm (3.8 in)
1963158.0 mm (6.2 in)
1964111.0 mm (4.4 in)
1965132.8 mm (5.2 in)
1966136.4 mm (5.4 in)
196786.8 mm (3.4 in)
1968128.3 mm (5.1 in)
1969110.0 mm (4.3 in)
1970116.5 mm (4.6 in)
1971116.4 mm (4.6 in)
1972145.9 mm (5.7 in)
1973189.0 mm (7.4 in)
1974116.1 mm (4.6 in)
1975103.2 mm (4.1 in)
1976127.8 mm (5.0 in)
197769.0 mm (2.7 in)
1978119.2 mm (4.7 in)
1979133.9 mm (5.3 in)
1980106.5 mm (4.2 in)
1981133.1 mm (5.2 in)
1982173.2 mm (6.8 in)
1983109.8 mm (4.3 in)
1984148.6 mm (5.9 in)
1985172.6 mm (6.8 in)
1986196.1 mm (7.7 in)
1987148.1 mm (5.8 in)
1988130.1 mm (5.1 in)
1989125.5 mm (4.9 in)
199073.7 mm (2.9 in)
1991186.8 mm (7.4 in)
1992119.2 mm (4.7 in)
1993189.8 mm (7.5 in)
199490.7 mm (3.6 in)
1995117.9 mm (4.6 in)
1996124.2 mm (4.9 in)
199784.1 mm (3.3 in)
1998134.5 mm (5.3 in)
1999169.9 mm (6.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Chicoasen (Cfe) by year The longest dry spell of the year at Chicoasen (Cfe), 1961 to 1999. The record is 126 days in 1977, marked on the chart; the median year is 67 days. 255075100125150197019801990Record: 126 days in 1977
The longest dry spell of the year at Chicoasen (Cfe), 1961 to 1999. The record is 126 days in 1977, marked on the chart; the median year is 67 days.
Longest dry spell (CDD) at Chicoasen (Cfe) by year
YearLongest dry spell (CDD)
196136 days
196290 days
196346 days
196480 days
196550 days
196681 days
196754 days
196858 days
196975 days
1970106 days
197165 days
197291 days
197367 days
197436 days
197568 days
197667 days
1977126 days
197845 days
197948 days
198058 days
198164 days
198273 days
198369 days
198478 days
198549 days
198653 days
198780 days
1988105 days
198973 days
199051 days
199170 days
199246 days
199373 days
199436 days
199545 days
1996106 days
199760 days
1998119 days
199970 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

38 years, 1962 to 1999

A day with at least 67.3 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 133.0 mm (5.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Chicoasen (Cfe): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years67.3 mm (2.6 in)
5 years84.3 mm (3.3 in)
10 years95.7 mm (3.8 in)
25 years110.5 mm (4.4 in)
50 years121.7 mm (4.8 in)Longer than the 38 years of record
100 years133.0 mm (5.2 in)Longer than the 38 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, 38 years of values from 1962 to 1999.

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: 115.8 mm (4.6 in) in 1973; 115.8 mm (4.6 in) in 1998; 108.0 mm (4.3 in) in 1987.

Download the Data

  • Data for Chicoasen (Cfe) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Chicoasen (Cfe) 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

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