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Built 2026-10-19 (19 October 2026)

Andrews Threshold Days by Year (USC00410248)

16 fixed thresholds counted per year at Andrews (USC00410248): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Andrews Thresholds

  • Andrews: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1986 with 28.
  • Andrews: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1914 with 9.
  • Andrews: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1989 with 162.
  • Andrews: days with a maximum temperature at or above 35 C (95 F) in 35 years, most in 1983 with 86.
  • 16 fixed thresholds have at least one qualifying day at Andrews.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at Andrews Days per year at Andrews with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 162 in 1989. 0501001502001964: 1501965: 1421966: 1321967: 1401968: 1261969: 1211970: 1301971: 1281972: 1431973: 1391974: 1341975: 1191976: 1001977: 1411978: 1431979: 1371980: 1421981: 1271982: 1441983: 1581984: 1341985: 1421986: 1351987: 1141988: 1261989: 1621990: 1281991: 1371992: 1261993: 1421995: 1461996: 1581997: 1202001: 1512008: 137196419681972197619801984198819921997
Days per year at Andrews with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 162 in 1989.
Days at or above 30 C (86 F) per year at Andrews
YearDaysDecade average
1964150135.2
1965142135.2
1966132135.2
1967140135.2
1968126135.2
1969121135.2
1970130131.4
1971128131.4
1972143131.4
1973139131.4
1974134131.4
1975119131.4
1976100131.4
1977141131.4
1978143131.4
1979137131.4
1980142138.4
1981127138.4
1982144138.4
1983158138.4
1984134138.4
1985142138.4
1986135138.4
1987114138.4
1988126138.4
1989162138.4
1990128136.7
1991137136.7
1992126136.7
1993142136.7
1995146136.7
1996158136.7
1997120136.7
2001151144
2008137144
First to last qualifying date each year at Andrews For each year, a bar from the first to the last day at Andrews meeting 30 C (86 F). 1964: 13 March 1964 to 18 October 19641965: 7 April 1965 to 16 October 19651966: 20 March 1966 to 31 October 19661967: 12 March 1967 to 27 October 19671968: 1 May 1968 to 29 October 19681969: 1 April 1969 to 11 October 19691970: 21 April 1970 to 26 October 19701971: 27 March 1971 to 15 October 19711972: 7 March 1972 to 18 October 19721973: 30 April 1973 to 1 November 19731974: 3 March 1974 to 27 September 19741975: 16 April 1975 to 20 October 19751976: 10 February 1976 to 24 September 19761977: 18 March 1977 to 1 October 19771978: 31 March 1978 to 12 October 19781979: 14 April 1979 to 27 October 19791980: 10 April 1980 to 8 November 19801981: 9 April 1981 to 5 October 19811982: 12 April 1982 to 19 October 19821983: 31 March 1983 to 15 October 19831984: 11 April 1984 to 8 November 19841985: 11 March 1985 to 8 October 19851986: 25 February 1986 to 3 October 19861987: 11 April 1987 to 30 October 19871988: 24 March 1988 to 8 November 19881989: 26 February 1989 to 24 October 19891990: 22 March 1990 to 16 October 19901991: 5 March 1991 to 18 October 19911992: 8 April 1992 to 25 October 19921993: 25 March 1993 to 17 October 19931995: 20 March 1995 to 22 October 19951996: 21 February 1996 to 20 November 19961997: 21 March 1997 to 19 October 19972001: 2 April 2001 to 2 November 20012008: 16 March 2008 to 10 October 20081964196919741979198419891995JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Andrews meeting 30 C (86 F).
First to last qualifying date each year at Andrews
YearFirst dateLast date
19641964-03-131964-10-18
19651965-04-071965-10-16
19661966-03-201966-10-31
19671967-03-121967-10-27
19681968-05-011968-10-29
19691969-04-011969-10-11
19701970-04-211970-10-26
19711971-03-271971-10-15
19721972-03-071972-10-18
19731973-04-301973-11-01
19741974-03-031974-09-27
19751975-04-161975-10-20
19761976-02-101976-09-24
19771977-03-181977-10-01
19781978-03-311978-10-12
19791979-04-141979-10-27
19801980-04-101980-11-08
19811981-04-091981-10-05
19821982-04-121982-10-19
19831983-03-311983-10-15
19841984-04-111984-11-08
19851985-03-111985-10-08
19861986-02-251986-10-03
19871987-04-111987-10-30
19881988-03-241988-11-08
19891989-02-261989-10-24
19901990-03-221990-10-16
19911991-03-051991-10-18
19921992-04-081992-10-25
19931993-03-251993-10-17
19951995-03-201995-10-22
19961996-02-211996-11-20
19971997-03-211997-10-19
20012001-04-022001-11-02
20082008-03-162008-10-10

Every Fixed Threshold

Fixed thresholds at Andrews
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days351621989137
35 C (95 F): Days3586198363
40 C (104 F): Days2011198011
90 F (32.2 C): Days351371983105
100 F (37.8 C): Days3538198026
110 F (43.3 C): Days1119891
0 C (32 F): Ice days (max28719832
0 C (32 F): Frost days (min3583196656
-10 C (14 F): Days with min291019833
20 C (68 F): Tropical nights (min3579199654
25 C (77 F): Days with min16419802
10 mm (0.39 in): Days with 10 mm or more rain4428198611
25 mm (0.98 in): Days with 25 mm or more rain41919145
50 mm (1.97 in): Days with 50 mm or more rain20519141
100 mm (3.94 in): Days with 100 mm or more rain3219141
10 cm (3.9 in): Days with 10 cm or more snowfall7219801

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

  • Data for Andrews 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). Threshold counts are computed by this site.

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