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Built 2026-10-19 (19 October 2026)

Putnam Threshold Days by Year (USC00417327)

18 fixed thresholds counted per year at Putnam (USC00417327): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Putnam Thresholds

  • Putnam: days with 10 mm (0.39 in) or more of precipitation in 113 years, most in 2004 with 36.
  • Putnam: days with 25 mm (0.98 in) or more of precipitation in 113 years, most in 2016 with 15.
  • Putnam: days with 50 mm (1.97 in) or more of precipitation in 93 years, most in 2004 with 5.
  • Putnam: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 2011 with 172.
  • 18 fixed thresholds have at least one qualifying day at Putnam.
63 years with a qualifying day
Days at or above 30 C (86 F) per year at Putnam Days per year at Putnam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 172 in 2011. 0501001502001964: 1381965: 1301966: 1221967: 1361968: 1271969: 1211970: 1261971: 1331972: 1441973: 1251974: 1231975: 1291976: 1101977: 1391978: 1541979: 1311980: 1371981: 1291982: 1411983: 1351984: 1481985: 1311986: 1421987: 1301988: 1541989: 1611990: 1241991: 1351992: 1281993: 1431994: 1381995: 1421996: 1421997: 1321998: 1491999: 1402000: 1462001: 1172002: 1262003: 1312004: 1112005: 1382006: 1592007: 1172008: 1382009: 1332010: 1342011: 1722012: 1442013: 1432014: 1482015: 1432016: 1282017: 1282018: 1422019: 1322020: 1382021: 1302022: 1642023: 1392024: 1562025: 1662026: 154196419711978198519921999200620132020
Days per year at Putnam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 172 in 2011.
Days at or above 30 C (86 F) per year at Putnam
YearDaysDecade average
1964138129
1965130129
1966122129
1967136129
1968127129
1969121129
1970126131.4
1971133131.4
1972144131.4
1973125131.4
1974123131.4
1975129131.4
1976110131.4
1977139131.4
1978154131.4
1979131131.4
1980137140.8
1981129140.8
1982141140.8
1983135140.8
1984148140.8
1985131140.8
1986142140.8
1987130140.8
1988154140.8
1989161140.8
1990124137.3
1991135137.3
1992128137.3
1993143137.3
1994138137.3
1995142137.3
1996142137.3
1997132137.3
1998149137.3
1999140137.3
2000146131.6
2001117131.6
2002126131.6
2003131131.6
2004111131.6
2005138131.6
2006159131.6
2007117131.6
2008138131.6
2009133131.6
2010134141.4
2011172141.4
2012144141.4
2013143141.4
2014148141.4
2015143141.4
2016128141.4
2017128141.4
2018142141.4
2019132141.4
2020138149.6
2021130149.6
2022164149.6
2023139149.6
2024156149.6
2025166149.6
2026154149.6
First to last qualifying date each year at Putnam For each year, a bar from the first to the last day at Putnam meeting 30 C (86 F). 1964: 3 April 1964 to 17 October 19641965: 3 April 1965 to 16 October 19651966: 20 March 1966 to 14 October 19661967: 3 March 1967 to 5 October 19671968: 2 May 1968 to 31 October 19681969: 8 January 1969 to 11 October 19691970: 15 April 1970 to 7 November 19701971: 16 February 1971 to 16 October 19711972: 7 March 1972 to 18 October 19721973: 8 May 1973 to 10 October 19731974: 2 March 1974 to 12 September 19741975: 27 January 1975 to 14 October 19751976: 9 February 1976 to 4 October 19761977: 7 May 1977 to 29 October 19771978: 1 April 1978 to 20 October 19781979: 14 February 1979 to 22 October 19791980: 6 April 1980 to 8 November 19801981: 8 April 1981 to 15 October 19811982: 12 March 1982 to 31 October 19821983: 2 March 1983 to 8 October 19831984: 9 April 1984 to 18 October 19841985: 4 April 1985 to 13 October 19851986: 19 February 1986 to 4 October 19861987: 11 April 1987 to 4 November 19871988: 10 March 1988 to 9 November 19881989: 11 March 1989 to 6 November 19891990: 15 April 1990 to 17 October 19901991: 5 March 1991 to 24 October 19911992: 7 April 1992 to 31 October 19921993: 9 March 1993 to 18 October 19931994: 6 March 1994 to 22 October 19941995: 21 March 1995 to 27 October 19951996: 10 February 1996 to 11 December 19961997: 21 March 1997 to 31 October 19971998: 15 April 1998 to 15 October 19981999: 9 April 1999 to 26 October 19992000: 20 January 2000 to 6 October 20002001: 7 May 2001 to 23 October 20012002: 13 March 2002 to 6 October 20022003: 27 March 2003 to 4 November 20032004: 18 March 2004 to 30 October 20042005: 22 April 2005 to 4 December 20052006: 4 January 2006 to 10 November 20062007: 28 February 2007 to 6 November 20072008: 5 February 2008 to 9 October 20082009: 25 February 2009 to 15 October 20092010: 1 April 2010 to 22 December 20102011: 28 February 2011 to 26 October 20112012: 31 March 2012 to 22 October 20122013: 5 March 2013 to 13 October 20132014: 2 March 2014 to 28 October 20142015: 25 March 2015 to 6 November 20152016: 24 March 2016 to 2 November 20162017: 12 February 2017 to 18 November 20172018: 16 February 2018 to 8 October 20182019: 10 April 2019 to 21 October 20192020: 26 March 2020 to 23 October 20202021: 7 April 2021 to 27 December 20212022: 18 March 2022 to 24 October 20222023: 22 February 2023 to 9 November 20232024: 22 February 2024 to 31 October 20242025: 4 February 2025 to 27 December 20252026: 18 February 2026 to 14 October 202619641972198019881996200420122020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Putnam meeting 30 C (86 F).
First to last qualifying date each year at Putnam
YearFirst dateLast date
19641964-04-031964-10-17
19651965-04-031965-10-16
19661966-03-201966-10-14
19671967-03-031967-10-05
19681968-05-021968-10-31
19691969-01-081969-10-11
19701970-04-151970-11-07
19711971-02-161971-10-16
19721972-03-071972-10-18
19731973-05-081973-10-10
19741974-03-021974-09-12
19751975-01-271975-10-14
19761976-02-091976-10-04
19771977-05-071977-10-29
19781978-04-011978-10-20
19791979-02-141979-10-22
19801980-04-061980-11-08
19811981-04-081981-10-15
19821982-03-121982-10-31
19831983-03-021983-10-08
19841984-04-091984-10-18
19851985-04-041985-10-13
19861986-02-191986-10-04
19871987-04-111987-11-04
19881988-03-101988-11-09
19891989-03-111989-11-06
19901990-04-151990-10-17
19911991-03-051991-10-24
19921992-04-071992-10-31
19931993-03-091993-10-18
19941994-03-061994-10-22
19951995-03-211995-10-27
19961996-02-101996-12-11
19971997-03-211997-10-31
19981998-04-151998-10-15
19991999-04-091999-10-26
20002000-01-202000-10-06
20012001-05-072001-10-23
20022002-03-132002-10-06
20032003-03-272003-11-04
20042004-03-182004-10-30
20052005-04-222005-12-04
20062006-01-042006-11-10
20072007-02-282007-11-06
20082008-02-052008-10-09
20092009-02-252009-10-15
20102010-04-012010-12-22
20112011-02-282011-10-26
20122012-03-312012-10-22
20132013-03-052013-10-13
20142014-03-022014-10-28
20152015-03-252015-11-06
20162016-03-242016-11-02
20172017-02-122017-11-18
20182018-02-162018-10-08
20192019-04-102019-10-21
20202020-03-262020-10-23
20212021-04-072021-12-27
20222022-03-182022-10-24
20232023-02-222023-11-09
20242024-02-222024-10-31
20252025-02-042025-12-27
20262026-02-182026-10-14

Every Fixed Threshold

Fixed thresholds at Putnam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days631722011154
35 C (95 F): Days63120201189
40 C (104 F): Days4641201110
90 F (32.2 C): Days631492011131
100 F (37.8 C): Days5989201137
110 F (43.3 C): Days4320243
0 C (32 F): Ice days (max571120213
0 C (32 F): Frost days (min6382201329
-10 C (14 F): Days with min481219834
-20 C (-4 F): Days with min2119891
20 C (68 F): Tropical nights (min631152018123
25 C (77 F): Days with min5361201132
10 mm (0.39 in): Days with 10 mm or more rain11336200419
25 mm (0.98 in): Days with 25 mm or more rain1131520167
50 mm (1.97 in): Days with 50 mm or more rain93520042
100 mm (3.94 in): Days with 100 mm or more rain15219811
10 cm (3.9 in): Days with 10 cm or more snowfall36319682
25 cm (9.8 in): Days with 25 cm or more snowfall2119191

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 Putnam 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 (2026-10-17).