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Bolivar Weather Records (USC00300766)

Record envelope, standing records and threshold days for Bolivar (USC00300766), New York, United States, with 104 years of record.

Key Facts for Bolivar

  • Bolivar (USC00300766) is a weather station in New York, United States at 42.12 latitude and -78.21 longitude, 546 m (1,790 ft) above sea level.
  • The station reports from 1896 to 1999, 104 years of record.
  • 1,464 records set at Bolivar still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Bolivar set a daily record precipitation of 50.0 mm (2.0 in) on 30 September 1999.

About the Station

  • Location: New York, United States, 42.12 latitude, -78.21 longitude.
  • Elevation: 546 m (1,790 ft).
  • Period of record: 1896 to 1999, 104 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Bolivar, with 2026 drawn through them The band shows the record high and record low for each calendar day at Bolivar. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Bolivar. 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 Bolivar, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan19.4 C (66.9 F)-38.3 C (-36.9 F)n/an/a
Feb19.4 C (66.9 F)-35.6 C (-32.1 F)n/an/a
Mar27.8 C (82.0 F)-32.2 C (-26.0 F)n/an/a
Apr31.1 C (88.0 F)-19.4 C (-2.9 F)n/an/a
May35.0 C (95.0 F)-7.8 C (18.0 F)n/an/a
Jun35.6 C (96.1 F)-3.3 C (26.1 F)n/an/a
Jul38.3 C (100.9 F)-2.2 C (28.0 F)n/an/a
Aug36.1 C (97.0 F)-1.7 C (28.9 F)n/an/a
Sep33.3 C (91.9 F)-6.7 C (19.9 F)n/an/a
Oct31.7 C (89.1 F)-11.1 C (12.0 F)n/an/a
Nov24.4 C (75.9 F)-20.6 C (-5.1 F)n/an/a
Dec20.0 C (68.0 F)-32.2 C (-26.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Bolivar by the year they were set 1,464 records at Bolivar still stand. 1906 holds the most, with 43. 02040601896: 321897: 211898: 181899: 271900: 371901: 341902: 151903: 231904: 301905: 311906: 431907: 181908: 131909: 431910: 281911: 371912: 211913: 281914: 371915: 131916: 301917: 381918: 351919: 301920: 161921: 141922: 211923: 351924: 291925: 231969: 81970: 161971: 251972: 211973: 211974: 161975: 161976: 421977: 261978: 171979: 341980: 221981: 171982: 261983: 191984: 401985: 151986: 201987: 81988: 301989: 241990: 331991: 221992: 161993: 261994: 221995: 161996: 161997: 41998: 171999: 9189619031910191719241974198119881995
1,464 records at Bolivar still stand. 1906 holds the most, with 43.
Standing records at Bolivar by the year they were set
Year setStanding records
189632
189721
189818
189927
190037
190134
190215
190323
190430
190531
190643
190718
190813
190943
191028
191137
191221
191328
191437
191513
191630
191738
191835
191930
192016
192114
192221
192335
192429
192523
19698
197016
197125
197221
197321
197416
197516
197642
197726
197817
197934
198022
198117
198226
198319
198440
198515
198620
19878
198830
198924
199033
199122
199216
199326
199422
199516
199616
19974
199817
19999

All-Time Record Progression

3 new records
When Bolivar set new all-time records 3 all-time records were set at Bolivar between 28 May 1946 and 18 January 1982. Each dot is a new record. Record daily precipitationRecord low maximum temperature28 May 1946: Record daily precipitation 95.3 mm (3.8 in)21 June 1972: Record daily precipitation 152.4 mm (6.0 in)18 January 1982: Record low maximum temperature -20.0 C (-4.0 F)1950195519601965197019751980
3 all-time records were set at Bolivar between 28 May 1946 and 18 January 1982. Each dot is a new record.
When Bolivar set new all-time records
DateKindDetail
1946-05-28Record daily precipitationRecord daily precipitation 95.3 mm (3.8 in)
1972-06-21Record daily precipitationRecord daily precipitation 152.4 mm (6.0 in)
1982-01-18Record low maximum temperatureRecord low maximum temperature -20.0 C (-4.0 F)

Wettest Day of Each Month

Jun: 152.4 mm (6.0 in)
Record daily precipitation for each month at Bolivar The wettest day on record for each calendar month at Bolivar. The most was 152.4 mm (6.0 in) on 21 June 1972. 050100150200 Jan: 63.5 mm (2.5 in), 12 January 1915 Jan Feb: 30.0 mm (1.2 in), 16 February 1990 Feb Mar: 55.9 mm (2.2 in), 25 March 1913 Mar Apr: 47.5 mm (1.9 in), 29 April 1909 Apr May: 95.3 mm (3.8 in), 28 May 1946 May Jun: 152.4 mm (6.0 in), 21 June 1972 Jun Jul: 72.4 mm (2.9 in), 21 July 1919 Jul Aug: 77.0 mm (3.0 in), 4 August 1918 Aug Sep: 84.3 mm (3.3 in), 14 September 1977 Sep Oct: 71.6 mm (2.8 in), 8 October 1900 Oct Nov: 61.2 mm (2.4 in), 1 November 1994 Nov Dec: 42.4 mm (1.7 in), 25 December 1978 Dec
The wettest day on record for each calendar month at Bolivar. The most was 152.4 mm (6.0 in) on 21 June 1972.
Record daily precipitation for each month at Bolivar
MonthRecord daily precipitation (mm)Date
Jan63.5 mm (2.5 in)12 January 1915
Feb30.0 mm (1.2 in)16 February 1990
Mar55.9 mm (2.2 in)25 March 1913
Apr47.5 mm (1.9 in)29 April 1909
May95.3 mm (3.8 in)28 May 1946
Jun152.4 mm (6.0 in)21 June 1972
Jul72.4 mm (2.9 in)21 July 1919
Aug77.0 mm (3.0 in)4 August 1918
Sep84.3 mm (3.3 in)14 September 1977
Oct71.6 mm (2.8 in)8 October 1900
Nov61.2 mm (2.4 in)1 November 1994
Dec42.4 mm (1.7 in)25 December 1978

Period of Record Coverage

1896 to 1999
Days with data per year at Bolivar 61 years of record at Bolivar, 1896 to 1999. 8 years have data for under 90 percent of days and are left out of rankings: 1896, 1907, 1908, 1911, 1912, 1925, 1969, 1999. 1896: 270 of 366 days1897: 363 of 365 days1898: 331 of 365 days1899: 360 of 365 days1900: 365 of 365 days1901: 364 of 365 days1902: 365 of 365 days1903: 351 of 365 days1904: 362 of 366 days1905: 360 of 365 days1906: 365 of 365 days1907: 212 of 365 days1908: 150 of 366 days1909: 361 of 365 days1910: 362 of 365 days1911: 274 of 365 days1912: 305 of 366 days1913: 363 of 365 days1914: 362 of 365 days1915: 363 of 365 days1916: 366 of 366 days1917: 365 of 365 days1918: 362 of 365 days1919: 364 of 365 days1920: 365 of 366 days1921: 362 of 365 days1922: 364 of 365 days1923: 333 of 365 days1924: 364 of 366 days1925: 272 of 365 days1969: 92 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 365 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 365 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 364 of 365 days1982: 364 of 365 days1983: 365 of 365 days1984: 365 of 366 days1985: 354 of 365 days1986: 364 of 365 days1987: 364 of 365 days1988: 365 of 366 days1989: 365 of 365 days1990: 363 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 335 of 365 days1996: 366 of 366 days1997: 364 of 365 days1998: 365 of 365 days1999: 273 of 365 days190019101920197019801990
61 years of record at Bolivar, 1896 to 1999. 8 years have data for under 90 percent of days and are left out of rankings: 1896, 1907, 1908, 1911, 1912, 1925, 1969, 1999.
Days with data per year at Bolivar
YearDays with dataShare of yearComplete
189627074%No
189736399%Yes
189833191%Yes
189936099%Yes
1900365100%Yes
1901364100%Yes
1902365100%Yes
190335196%Yes
190436299%Yes
190536099%Yes
1906365100%Yes
190721258%No
190815041%No
190936199%Yes
191036299%Yes
191127475%No
191230583%No
191336399%Yes
191436299%Yes
191536399%Yes
1916366100%Yes
1917365100%Yes
191836299%Yes
1919364100%Yes
1920365100%Yes
192136299%Yes
1922364100%Yes
192333391%Yes
192436499%Yes
192527275%No
19699225%No
1970365100%Yes
1971365100%Yes
1972365100%Yes
1973365100%Yes
1974365100%Yes
1975364100%Yes
1976365100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981364100%Yes
1982364100%Yes
1983365100%Yes
1984365100%Yes
198535497%Yes
1986364100%Yes
1987364100%Yes
1988365100%Yes
1989365100%Yes
199036399%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
199533592%Yes
1996366100%Yes
1997364100%Yes
1998365100%Yes
199927375%No

Latest Records

20
Latest records at Bolivar
DateStationRecordValueBeat old record byOld record stoodSignificance
30 September 1999Bolivar, USdaily rain50.0 mm (2.0 in)10.1 mm (0.4 in)78 years42 of 100 (Notable)
22 September 1999Bolivar, USdaily low max8.9 C (48.0 F)2.8 C (5.0 F)73 years37 of 100 (Notable)
17 September 1999Bolivar, USdaily rain28.7 mm (1.1 in)4.1 mm (0.16 in)9 years15 of 100 (Routine)
7 September 1999Bolivar, USdaily high min (Tie)17.8 C (64.0 F)tie13 years3 of 100 (Routine)
1 August 1999Bolivar, USdaily high max33.9 C (93.0 F)1.1 C (2.0 F)81 years36 of 100 (Notable)
19 July 1999Bolivar, USdaily high max (Tie)32.2 C (90.0 F)tie94 years9 of 100 (Routine)
29 June 1999Bolivar, USmonthly high min19.4 C (66.9 F)0.5 C (0.9 F)101 years51 of 100 (Notable)
18 June 1999Bolivar, USdaily low max12.2 C (54.0 F)5.0 C (9.0 F)24 years28 of 100 (Routine)
25 May 1999Bolivar, USdaily rain20.6 mm (0.8 in)0.5 mm (0.02 in)96 years20 of 100 (Routine)
9 May 1999Bolivar, USdaily rain26.2 mm (1.0 in)2.1 mm (0.08 in)84 years37 of 100 (Notable)
7 May 1999Bolivar, USdaily high min15.0 C (59.0 F)2.2 C (4.0 F)76 years36 of 100 (Notable)
6 May 1999Bolivar, USdaily high max28.9 C (84.0 F)0.6 C (1.1 F)94 years39 of 100 (Notable)
8 March 1999Bolivar, USdaily low min-27.8 C (-18.0 F)5.0 C (9.0 F)14 years21 of 100 (Routine)
7 March 1999Bolivar, USdaily snowfall15.2 cm (6.0 in)5.0 cm (2.0 in)76 years41 of 100 (Notable)
12 February 1999Bolivar, USdaily high max13.3 C (55.9 F)2.7 C (4.9 F)100 years44 of 100 (Notable)
15 January 1999Bolivar, USdaily rain24.1 mm (0.9 in)8.9 mm (0.35 in)80 years20 of 100 (Routine)
15 January 1999Bolivar, USdaily snowfall20.8 cm (8.2 in)6.8 cm (2.7 in)80 years48 of 100 (Notable)
3 January 1999Bolivar, USdaily rain23.4 mm (0.9 in)4.6 mm (0.18 in)85 years20 of 100 (Routine)
2 January 1999Bolivar, USdaily low min-25.0 C (-13.0 F)1.1 C (2.0 F)99 years40 of 100 (Notable)
22 December 1998Bolivar, USdaily rain23.9 mm (0.9 in)3.6 mm (0.14 in)81 years20 of 100 (Routine)

Climate Trend

49 complete years, 1897 to 1998
Annual mean temperature at Bolivar as warming stripes, 1897 to 1998 One stripe for each of 49 complete years at Bolivar, 1897 to 1998. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 1917, at 5.2 C (41.3 F), and the warmest was 1998, at 8.8 C (47.9 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1897: 7.2 C, +0.2 C from the station mean1899: 7.3 C, +0.4 C from the station mean1900: 7.6 C, +0.6 C from the station mean1901: 6.8 C, -0.2 C from the station mean1902: 6.9 C, 0.0 C from the station mean1903: 7.1 C, +0.2 C from the station mean1904: 5.9 C, -1.1 C from the station mean1905: 7.0 C, 0.0 C from the station mean1906: 7.9 C, +1.0 C from the station mean1909: 7.9 C, +0.9 C from the station mean1910: 7.7 C, +0.7 C from the station mean1913: 8.7 C, +1.8 C from the station mean1914: 7.1 C, +0.1 C from the station mean1915: 7.3 C, +0.3 C from the station mean1916: 7.1 C, +0.1 C from the station mean1917: 5.2 C, -1.8 C from the station mean1918: 7.2 C, +0.3 C from the station mean1919: 7.8 C, +0.8 C from the station mean1920: 6.4 C, -0.6 C from the station mean1921: 8.4 C, +1.4 C from the station mean1922: 7.8 C, +0.8 C from the station mean1924: 5.6 C, -1.3 C from the station mean1970: 6.6 C, -0.3 C from the station mean1971: 6.9 C, -0.1 C from the station mean1972: 6.2 C, -0.8 C from the station mean1973: 7.8 C, +0.8 C from the station mean1974: 6.5 C, -0.5 C from the station mean1975: 7.3 C, +0.3 C from the station mean1976: 6.0 C, -1.0 C from the station mean1977: 6.7 C, -0.3 C from the station mean1978: 5.8 C, -1.2 C from the station mean1979: 6.5 C, -0.4 C from the station mean1980: 6.1 C, -0.8 C from the station mean1981: 6.6 C, -0.4 C from the station mean1982: 6.7 C, -0.2 C from the station mean1983: 7.2 C, +0.2 C from the station mean1984: 6.9 C, -0.1 C from the station mean1986: 7.2 C, +0.2 C from the station mean1987: 7.3 C, +0.3 C from the station mean1988: 6.6 C, -0.4 C from the station mean1989: 6.2 C, -0.8 C from the station mean1990: 8.0 C, +1.0 C from the station mean1991: 7.9 C, +1.0 C from the station mean1992: 6.2 C, -0.7 C from the station mean1993: 6.3 C, -0.6 C from the station mean1994: 6.4 C, -0.5 C from the station mean1996: 6.7 C, -0.3 C from the station mean1997: 6.6 C, -0.4 C from the station mean1998: 8.8 C, +1.8 C from the station mean1897191019201930194019501960197019801990
One stripe for each of 49 complete years at Bolivar, 1897 to 1998. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 1917, at 5.2 C (41.3 F), and the warmest was 1998, at 8.8 C (47.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Bolivar as warming stripes, 1897 to 1998
YearAnnual mean temperatureDifference from the station mean
18977.2 C+0.22 C
18997.3 C+0.35 C
19007.6 C+0.62 C
19016.8 C-0.21 C
19026.9 C-0.05 C
19037.1 C+0.16 C
19045.9 C-1.07 C
19057.0 C-0.03 C
19067.9 C+0.96 C
19097.9 C+0.94 C
19107.7 C+0.73 C
19138.7 C+1.75 C
19147.1 C+0.09 C
19157.3 C+0.27 C
19167.1 C+0.13 C
19175.2 C-1.81 C
19187.2 C+0.26 C
19197.8 C+0.82 C
19206.4 C-0.61 C
19218.4 C+1.41 C
19227.8 C+0.77 C
19245.6 C-1.35 C
19706.6 C-0.35 C
19716.9 C-0.13 C
19726.2 C-0.81 C
19737.8 C+0.82 C
19746.5 C-0.52 C
19757.3 C+0.30 C
19766.0 C-0.96 C
19776.7 C-0.32 C
19785.8 C-1.23 C
19796.5 C-0.44 C
19806.1 C-0.84 C
19816.6 C-0.41 C
19826.7 C-0.24 C
19837.2 C+0.21 C
19846.9 C-0.09 C
19867.2 C+0.17 C
19877.3 C+0.29 C
19886.6 C-0.41 C
19896.2 C-0.79 C
19908.0 C+1.04 C
19917.9 C+0.96 C
19926.2 C-0.74 C
19936.3 C-0.64 C
19946.4 C-0.54 C
19966.7 C-0.32 C
19976.6 C-0.42 C
19988.8 C+1.84 C

The fitted trend in annual mean temperature here over 1897 to 1998 is -0.04 C (-0.10 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.08 F (-0.19 to 0.03) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Bolivar
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.04 C (-0.10 to 0.02) per decade-0.08 F (-0.19 to 0.03) per decade1897 to 199849Not clearly different from zero
Mean daily maximum-0.10 C (-0.17 to -0.03) per decade-0.2 F (-0.3 to -0.1) per decade1897 to 199849Fall
Mean daily minimum0.02 C (-0.04 to 0.07) per decade0.03 F (-0.08 to 0.13) per decade1897 to 199849Not clearly different from zero

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

1896 to 1999
Yearly extremes at Bolivar: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)191132.8 C (91.0 F)61
Coldest night (TNn)-38.3 C (-36.9 F)1904-28.9 C (-20.0 F)61
Wettest day (Rx1day)152.4 mm (6.0 in)197250.8 mm (2.0 in)71
Wettest five days (Rx5day)296.1 mm (11.7 in)197277.7 mm (3.1 in)71
Longest dry spell (CDD)37 days192414 days71

Hottest day (TXx)

Hottest day (TXx) at Bolivar by year The hottest day of the year at Bolivar, 1896 to 1999. The record is 38.3 C (100.9 F) in 1911, marked on the chart; the median year is 32.8 C (91.0 F). 2530354019001920194019601980Record: 38.3 C (100.9 F) in 1911
The hottest day of the year at Bolivar, 1896 to 1999. The record is 38.3 C (100.9 F) in 1911, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Bolivar by year
YearHottest day (TXx)
189632.2 C (90.0 F)
189735.0 C (95.0 F)
189831.7 C (89.1 F)
189935.6 C (96.1 F)
190035.6 C (96.1 F)
190135.6 C (96.1 F)
190231.1 C (88.0 F)
190333.3 C (91.9 F)
190432.2 C (90.0 F)
190532.8 C (91.0 F)
190632.8 C (91.0 F)
190732.2 C (90.0 F)
190833.9 C (93.0 F)
190935.6 C (96.1 F)
191033.3 C (91.9 F)
191138.3 C (100.9 F)
191234.4 C (93.9 F)
191334.4 C (93.9 F)
191433.3 C (91.9 F)
191531.1 C (88.0 F)
191636.1 C (97.0 F)
191733.9 C (93.0 F)
191835.6 C (96.1 F)
191933.9 C (93.0 F)
192030.6 C (87.1 F)
192132.2 C (90.0 F)
192232.8 C (91.0 F)
192333.3 C (91.9 F)
192433.3 C (91.9 F)
192534.4 C (93.9 F)
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
196926.7 C (80.1 F)
197029.4 C (84.9 F)
197131.1 C (88.0 F)
197230.6 C (87.1 F)
197332.2 C (90.0 F)
197431.7 C (89.1 F)
197533.3 C (91.9 F)
197630.6 C (87.1 F)
197732.2 C (90.0 F)
197831.7 C (89.1 F)
197930.6 C (87.1 F)
198033.3 C (91.9 F)
198131.1 C (88.0 F)
198230.6 C (87.1 F)
198332.2 C (90.0 F)
198430.6 C (87.1 F)
198529.4 C (84.9 F)
198631.7 C (89.1 F)
198732.2 C (90.0 F)
198836.1 C (97.0 F)
198931.1 C (88.0 F)
199033.9 C (93.0 F)
199133.3 C (91.9 F)
199229.4 C (84.9 F)
199333.3 C (91.9 F)
199432.2 C (90.0 F)
199533.9 C (93.0 F)
199633.3 C (91.9 F)
199731.7 C (89.1 F)
199831.7 C (89.1 F)
199933.9 C (93.0 F)

Coldest night (TNn)

Coldest night (TNn) at Bolivar by year The coldest night of the year at Bolivar, 1896 to 1999. The record is -38.3 C (-36.9 F) in 1904, marked on the chart; the median year is -28.9 C (-20.0 F). -40-35-30-25-2019001920194019601980Record: -38.3 C (-36.9 F) in 1904
The coldest night of the year at Bolivar, 1896 to 1999. The record is -38.3 C (-36.9 F) in 1904, marked on the chart; the median year is -28.9 C (-20.0 F).
Coldest night (TNn) at Bolivar by year
YearColdest night (TNn)
1896-20.0 C (-4.0 F)
1897-26.7 C (-16.1 F)
1898-26.7 C (-16.1 F)
1899-33.3 C (-27.9 F)
1900-26.1 C (-15.0 F)
1901-26.1 C (-15.0 F)
1902-28.3 C (-18.9 F)
1903-23.9 C (-11.0 F)
1904-38.3 C (-36.9 F)
1905-28.9 C (-20.0 F)
1906-27.2 C (-17.0 F)
1907-32.2 C (-26.0 F)
1908-20.6 C (-5.1 F)
1909-25.6 C (-14.1 F)
1910-30.0 C (-22.0 F)
1911-20.6 C (-5.1 F)
1912-32.8 C (-27.0 F)
1913-22.2 C (-8.0 F)
1914-35.0 C (-31.0 F)
1915-28.9 C (-20.0 F)
1916-32.2 C (-26.0 F)
1917-34.4 C (-29.9 F)
1918-29.4 C (-20.9 F)
1919-30.6 C (-23.1 F)
1920-28.9 C (-20.0 F)
1921-25.0 C (-13.0 F)
1922-27.8 C (-18.0 F)
1923-26.7 C (-16.1 F)
1924-30.0 C (-22.0 F)
1925-31.1 C (-24.0 F)
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1969-27.2 C (-17.0 F)
1970-30.0 C (-22.0 F)
1971-30.0 C (-22.0 F)
1972-27.2 C (-17.0 F)
1973-31.7 C (-25.1 F)
1974-26.1 C (-15.0 F)
1975-26.7 C (-16.1 F)
1976-32.8 C (-27.0 F)
1977-31.1 C (-24.0 F)
1978-28.9 C (-20.0 F)
1979-35.6 C (-32.1 F)
1980-31.7 C (-25.1 F)
1981-32.2 C (-26.0 F)
1982-28.9 C (-20.0 F)
1983-23.3 C (-9.9 F)
1984-36.7 C (-34.1 F)
1985-30.0 C (-22.0 F)
1986-26.7 C (-16.1 F)
1987-29.4 C (-20.9 F)
1988-29.4 C (-20.9 F)
1989-28.3 C (-18.9 F)
1990-23.3 C (-9.9 F)
1991-25.0 C (-13.0 F)
1992-28.9 C (-20.0 F)
1993-31.7 C (-25.1 F)
1994-34.4 C (-29.9 F)
1995-27.2 C (-17.0 F)
1996-32.8 C (-27.0 F)
1997-32.2 C (-26.0 F)
1998-20.6 C (-5.1 F)
1999-27.8 C (-18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Bolivar by year The wettest day of the year at Bolivar, 1896 to 1999. The record is 152.4 mm (6.0 in) in 1972, marked on the chart; the median year is 50.8 mm (2.0 in). 05010015020019001920194019601980Record: 152.4 mm (6.0 in) in 1972
The wettest day of the year at Bolivar, 1896 to 1999. The record is 152.4 mm (6.0 in) in 1972, marked on the chart; the median year is 50.8 mm (2.0 in).
Wettest day (Rx1day) at Bolivar by year
YearWettest day (Rx1day)
189645.5 mm (1.8 in)
189733.0 mm (1.3 in)
189840.6 mm (1.6 in)
189926.4 mm (1.0 in)
190071.6 mm (2.8 in)
190137.1 mm (1.5 in)
190248.8 mm (1.9 in)
190348.8 mm (1.9 in)
190441.9 mm (1.6 in)
190536.8 mm (1.4 in)
190639.9 mm (1.6 in)
190730.2 mm (1.2 in)
190842.4 mm (1.7 in)
190947.5 mm (1.9 in)
191033.0 mm (1.3 in)
191150.8 mm (2.0 in)
191250.8 mm (2.0 in)
191355.9 mm (2.2 in)
191441.9 mm (1.6 in)
191563.5 mm (2.5 in)
191647.0 mm (1.9 in)
191753.3 mm (2.1 in)
191877.0 mm (3.0 in)
191972.4 mm (2.9 in)
192042.7 mm (1.7 in)
192142.9 mm (1.7 in)
192288.9 mm (3.5 in)
192350.8 mm (2.0 in)
192476.2 mm (3.0 in)
192538.6 mm (1.5 in)
194235.3 mm (1.4 in)
194375.7 mm (3.0 in)
194450.8 mm (2.0 in)
194558.4 mm (2.3 in)
194695.3 mm (3.8 in)
194751.1 mm (2.0 in)
194850.8 mm (2.0 in)
194950.8 mm (2.0 in)
195064.8 mm (2.6 in)
195145.2 mm (1.8 in)
196932.5 mm (1.3 in)
197064.0 mm (2.5 in)
197153.8 mm (2.1 in)
1972152.4 mm (6.0 in)
197358.2 mm (2.3 in)
197451.1 mm (2.0 in)
197550.8 mm (2.0 in)
197634.8 mm (1.4 in)
197784.3 mm (3.3 in)
197842.4 mm (1.7 in)
197951.8 mm (2.0 in)
198054.1 mm (2.1 in)
198153.3 mm (2.1 in)
198249.8 mm (2.0 in)
198339.1 mm (1.5 in)
198452.6 mm (2.1 in)
198530.2 mm (1.2 in)
198652.8 mm (2.1 in)
198761.2 mm (2.4 in)
198851.6 mm (2.0 in)
198947.0 mm (1.9 in)
199041.1 mm (1.6 in)
199134.0 mm (1.3 in)
199247.5 mm (1.9 in)
199363.5 mm (2.5 in)
199463.2 mm (2.5 in)
199570.6 mm (2.8 in)
199644.7 mm (1.8 in)
199734.5 mm (1.4 in)
199842.2 mm (1.7 in)
199950.0 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Bolivar by year The wettest five days of the year at Bolivar, 1896 to 1999. The record is 296.1 mm (11.7 in) in 1972, marked on the chart; the median year is 77.7 mm (3.1 in). 010020030019001920194019601980Record: 296.1 mm (11.7 in) in 1972
The wettest five days of the year at Bolivar, 1896 to 1999. The record is 296.1 mm (11.7 in) in 1972, marked on the chart; the median year is 77.7 mm (3.1 in).
Wettest five days (Rx5day) at Bolivar by year
YearWettest five days (Rx5day)
189680.0 mm (3.1 in)
189769.1 mm (2.7 in)
189878.7 mm (3.1 in)
189949.6 mm (2.0 in)
1900101.0 mm (4.0 in)
190165.5 mm (2.6 in)
1902113.8 mm (4.5 in)
190381.8 mm (3.2 in)
190478.2 mm (3.1 in)
190577.7 mm (3.1 in)
190671.4 mm (2.8 in)
190756.8 mm (2.2 in)
190859.9 mm (2.4 in)
1909104.3 mm (4.1 in)
191071.4 mm (2.8 in)
191160.2 mm (2.4 in)
191276.2 mm (3.0 in)
1913122.7 mm (4.8 in)
191476.0 mm (3.0 in)
191577.2 mm (3.0 in)
191673.1 mm (2.9 in)
191795.2 mm (3.7 in)
191890.9 mm (3.6 in)
191988.0 mm (3.5 in)
192097.9 mm (3.9 in)
192197.8 mm (3.9 in)
1922109.2 mm (4.3 in)
192371.3 mm (2.8 in)
1924102.9 mm (4.1 in)
192567.8 mm (2.7 in)
194272.6 mm (2.9 in)
194376.2 mm (3.0 in)
194455.2 mm (2.2 in)
194563.0 mm (2.5 in)
194689.9 mm (3.5 in)
194763.8 mm (2.5 in)
194866.3 mm (2.6 in)
194988.3 mm (3.5 in)
195068.4 mm (2.7 in)
195148.2 mm (1.9 in)
196954.1 mm (2.1 in)
1970119.0 mm (4.7 in)
197184.6 mm (3.3 in)
1972296.1 mm (11.7 in)
1973107.0 mm (4.2 in)
197463.3 mm (2.5 in)
197582.5 mm (3.2 in)
197681.3 mm (3.2 in)
1977117.1 mm (4.6 in)
197862.4 mm (2.5 in)
197994.7 mm (3.7 in)
198065.3 mm (2.6 in)
198179.5 mm (3.1 in)
198268.3 mm (2.7 in)
198359.0 mm (2.3 in)
198484.1 mm (3.3 in)
198560.7 mm (2.4 in)
198685.3 mm (3.4 in)
198786.4 mm (3.4 in)
1988111.2 mm (4.4 in)
198972.9 mm (2.9 in)
199082.3 mm (3.2 in)
199159.9 mm (2.4 in)
199284.0 mm (3.3 in)
1993113.3 mm (4.5 in)
199493.0 mm (3.7 in)
199571.9 mm (2.8 in)
199686.7 mm (3.4 in)
199761.3 mm (2.4 in)
199874.0 mm (2.9 in)
199957.1 mm (2.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Bolivar by year The longest dry spell of the year at Bolivar, 1896 to 1999. The record is 37 days in 1924, marked on the chart; the median year is 14 days. 01020304019001920194019601980Record: 37 days in 1924
The longest dry spell of the year at Bolivar, 1896 to 1999. The record is 37 days in 1924, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Bolivar by year
YearLongest dry spell (CDD)
189616 days
189712 days
189813 days
189916 days
190011 days
190115 days
190212 days
190324 days
190415 days
190516 days
190610 days
190711 days
190812 days
190922 days
191018 days
191111 days
191211 days
191318 days
191418 days
191523 days
191614 days
191721 days
191814 days
191919 days
192021 days
192118 days
192225 days
192322 days
192437 days
192515 days
19429 days
194313 days
194416 days
194510 days
194612 days
194728 days
194817 days
194926 days
195016 days
195110 days
19695 days
197014 days
197113 days
197211 days
197315 days
197413 days
197513 days
197610 days
197715 days
197816 days
197910 days
198016 days
198113 days
198211 days
198316 days
198416 days
198515 days
198614 days
198721 days
198811 days
198911 days
199010 days
199111 days
199213 days
199310 days
199411 days
199517 days
199611 days
199716 days
199812 days
199914 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.

Frost Dates and Growing Season

49 years with a frost

Across 49 years with a frost, the median last spring frost at Bolivar falls on 1 June and the median first autumn frost on 19 September, which leaves a median of 109 days between them.

Fitted over all years, the growing season changes by +1.2 days per decade at this station.

Frost dates and growing season at Bolivar
MeasureMedian, all yearsEarliest periodRecent period (1921 to 1998)Recent against earliestFitted trend
Last spring frost1 Junen/a1 Junen/a-0.5 days per decade
First autumn frost19 Septembern/a22 Septembern/a+0.7 days per decade
Growing days109 daysn/a115 daysn/a+1.2 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

52 years, 1897 to 1998

A day with at least 49.5 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 122.3 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Bolivar: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years49.5 mm (1.9 in)
5 years65.3 mm (2.6 in)
10 years77.1 mm (3.0 in)
25 years93.7 mm (3.7 in)
50 years107.4 mm (4.2 in)
100 years122.3 mm (4.8 in)Longer than the 52 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, 52 years of values from 1897 to 1998.

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: 152.4 mm (6.0 in) in 1972; 88.9 mm (3.5 in) in 1922; 84.3 mm (3.3 in) in 1977.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

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