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Built 2026-10-18 (18 October 2026)

Olney Threshold Days by Year

18 fixed thresholds counted per year at Olney (USC00416636): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Olney Thresholds

  • Olney: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1990 with 30.
  • Olney: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1990 with 15.
  • Olney: days with 50 mm (1.97 in) or more of precipitation in 46 years, most in 2010 with 6.
  • Olney: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 1963 with 165.
  • 18 fixed thresholds have at least one qualifying day at Olney.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Olney Days per year at Olney with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 165 in 1963. 0501001502001956: 1541957: 1111958: 1041959: 1411960: 1451961: 1241962: 1431963: 1651964: 1281965: 1191967: 1181968: 1381969: 1191971: 1481974: 1291975: 1111976: 1111977: 1431981: 1381982: 1331983: 1381984: 1401986: 1431987: 1431988: 1421990: 1231991: 1261993: 1261994: 1271996: 1371997: 1252000: 1442002: 1222007: 1122008: 1372010: 121195619601964196919761983198819942002
Days per year at Olney with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 165 in 1963.
Days at or above 30 C (86 F) per year at Olney
YearDaysDecade average
1956154127.5
1957111127.5
1958104127.5
1959141127.5
1960145133.2
1961124133.2
1962143133.2
1963165133.2
1964128133.2
1965119133.2
1967118133.2
1968138133.2
1969119133.2
1971148128.4
1974129128.4
1975111128.4
1976111128.4
1977143128.4
1981138139.6
1982133139.6
1983138139.6
1984140139.6
1986143139.6
1987143139.6
1988142139.6
1990123127.3
1991126127.3
1993126127.3
1994127127.3
1996137127.3
1997125127.3
2000144128.8
2002122128.8
2007112128.8
2008137128.8
2010121121
First to last qualifying date each year at Olney For each year, a bar from the first to the last day at Olney meeting 30 C (86 F). 1956: 24 February 1956 to 29 October 19561957: 17 April 1957 to 7 October 19571958: 23 April 1958 to 24 October 19581959: 24 March 1959 to 25 October 19591960: 31 March 1960 to 15 November 19601961: 15 March 1961 to 30 September 19611962: 11 February 1962 to 22 October 19621963: 18 March 1963 to 6 November 19631964: 2 April 1964 to 29 October 19641965: 3 April 1965 to 25 November 19651967: 2 March 1967 to 6 October 19671968: 1 May 1968 to 1 November 19681969: 8 April 1969 to 11 November 19691971: 16 February 1971 to 16 October 19711974: 1 March 1974 to 27 September 19741975: 20 March 1975 to 23 October 19751976: 9 February 1976 to 3 October 19761977: 17 March 1977 to 31 October 19771981: 20 February 1981 to 18 November 19811982: 22 February 1982 to 30 October 19821983: 1 March 1983 to 18 November 19831984: 15 March 1984 to 30 October 19841986: 18 February 1986 to 30 September 19861987: 11 April 1987 to 4 November 19871988: 10 March 1988 to 3 November 19881990: 4 April 1990 to 20 October 19901991: 5 March 1991 to 24 October 19911993: 9 March 1993 to 16 October 19931994: 17 March 1994 to 7 October 19941996: 20 February 1996 to 20 October 19961997: 21 March 1997 to 11 October 19972000: 15 February 2000 to 6 October 20002002: 13 March 2002 to 6 October 20022007: 11 April 2007 to 22 October 20072008: 5 February 2008 to 9 October 20082010: 31 March 2010 to 21 December 201019561961196719751983199019972010JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Olney meeting 30 C (86 F).
First to last qualifying date each year at Olney
YearFirst dateLast date
19561956-02-241956-10-29
19571957-04-171957-10-07
19581958-04-231958-10-24
19591959-03-241959-10-25
19601960-03-311960-11-15
19611961-03-151961-09-30
19621962-02-111962-10-22
19631963-03-181963-11-06
19641964-04-021964-10-29
19651965-04-031965-11-25
19671967-03-021967-10-06
19681968-05-011968-11-01
19691969-04-081969-11-11
19711971-02-161971-10-16
19741974-03-011974-09-27
19751975-03-201975-10-23
19761976-02-091976-10-03
19771977-03-171977-10-31
19811981-02-201981-11-18
19821982-02-221982-10-30
19831983-03-011983-11-18
19841984-03-151984-10-30
19861986-02-181986-09-30
19871987-04-111987-11-04
19881988-03-101988-11-03
19901990-04-041990-10-20
19911991-03-051991-10-24
19931993-03-091993-10-16
19941994-03-171994-10-07
19961996-02-201996-10-20
19971997-03-211997-10-11
20002000-02-152000-10-06
20022002-03-132002-10-06
20072007-04-112007-10-22
20082008-02-052008-10-09
20102010-03-312010-12-21

Every Fixed Threshold

Fixed thresholds at Olney
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days361651963121
35 C (95 F): Days36111198457
40 C (104 F): Days293520003
90 F (32.2 C): Days36139195693
100 F (37.8 C): Days3669198417
110 F (43.3 C): Days8319862
0 C (32 F): Ice days (max301019834
0 C (32 F): Frost days (min3678200873
-10 C (14 F): Days with min291119633
-20 C (-4 F): Days with min10n/a1
20 C (68 F): Tropical nights (min36108200094
25 C (77 F): Days with min331720007
10 mm (0.39 in): Days with 10 mm or more rain4730199024
25 mm (0.98 in): Days with 25 mm or more rain4715199012
50 mm (1.97 in): Days with 50 mm or more rain46620106
100 mm (3.94 in): Days with 100 mm or more rain8119592
200 mm (7.87 in): Days with 200 mm or more rain20n/a1
10 cm (3.9 in): Days with 10 cm or more snowfall5219681

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

  • Data for Olney 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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