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Built 2026-10-19 (19 October 2026)

Deerfield 4 NW Threshold Days by Year (USC00392228)

14 fixed thresholds counted per year at Deerfield 4 NW (USC00392228): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Deerfield 4 NW Thresholds

  • Deerfield 4 NW: days with 10 mm (0.39 in) or more of precipitation in 20 years, most in 1977 with 27.
  • Deerfield 4 NW: days with 10 cm (3.9 in) or more of snowfall in 20 years, most in 1977 with 28.
  • Deerfield 4 NW: days with a maximum temperature at or above 30 C (86 F) in 19 years, most in 1960 with 18.
  • Deerfield 4 NW: days with a maximum temperature at or below 0 C (32 F) in 19 years, most in 1964 with 86.
  • 14 fixed thresholds have at least one qualifying day at Deerfield 4 NW.
19 years with a qualifying day
Days at or above 30 C (86 F) per year at Deerfield 4 NW Days per year at Deerfield 4 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 1960. 051015201956: 11957: 51958: 51959: 51960: 181961: 121962: 11963: 21964: 111965: 11966: 81967: 21969: 91970: 61971: 31972: 41975: 111976: 61977: 41956195819601962196419661969197119751977
Days per year at Deerfield 4 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 1960.
Days at or above 30 C (86 F) per year at Deerfield 4 NW
YearDaysDecade average
195614
195754
195854
195954
1960187.1
1961127.1
196217.1
196327.1
1964117.1
196517.1
196687.1
196727.1
196997.1
197065.7
197135.7
197245.7
1975115.7
197665.7
197745.7
First to last qualifying date each year at Deerfield 4 NW For each year, a bar from the first to the last day at Deerfield 4 NW meeting 30 C (86 F). 1956: 12 June 1956 to 12 June 19561957: 17 July 1957 to 11 August 19571958: 8 August 1958 to 12 September 19581959: 14 June 1959 to 12 September 19591960: 25 June 1960 to 4 September 19601961: 27 June 1961 to 29 August 19611962: 9 August 1962 to 9 August 19621963: 25 July 1963 to 1 August 19631964: 4 July 1964 to 8 August 19641965: 22 July 1965 to 22 July 19651966: 28 June 1966 to 25 July 19661967: 24 August 1967 to 27 August 19671969: 12 July 1969 to 28 August 19691970: 27 June 1970 to 27 August 19701971: 16 August 1971 to 23 August 19711972: 29 July 1972 to 14 August 19721975: 16 July 1975 to 29 August 19751976: 9 July 1976 to 4 September 19761977: 15 July 1977 to 19 July 19771956195919621965196919721977JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Deerfield 4 NW meeting 30 C (86 F).
First to last qualifying date each year at Deerfield 4 NW
YearFirst dateLast date
19561956-06-121956-06-12
19571957-07-171957-08-11
19581958-08-081958-09-12
19591959-06-141959-09-12
19601960-06-251960-09-04
19611961-06-271961-08-29
19621962-08-091962-08-09
19631963-07-251963-08-01
19641964-07-041964-08-08
19651965-07-221965-07-22
19661966-06-281966-07-25
19671967-08-241967-08-27
19691969-07-121969-08-28
19701970-06-271970-08-27
19711971-08-161971-08-23
19721972-07-291972-08-14
19751975-07-161975-08-29
19761976-07-091976-09-04
19771977-07-151977-07-19

Every Fixed Threshold

Fixed thresholds at Deerfield 4 NW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days191819604
90 F (32.2 C): Days12719602
0 C (32 F): Ice days (max1986196466
0 C (32 F): Frost days (min192731970255
-10 C (14 F): Days with min191501970120
-20 C (-4 F): Days with min1946197643
-30 C (-22 F): Days with min18819727
-40 C (-40 F): Days with min3119631
10 mm (0.39 in): Days with 10 mm or more rain2027197727
25 mm (0.98 in): Days with 25 mm or more rain19719643
50 mm (1.97 in): Days with 50 mm or more rain5219642
10 cm (3.9 in): Days with 10 cm or more snowfall2028197728
25 cm (9.8 in): Days with 25 cm or more snowfall13719777
50 cm (19.7 in): Days with 50 cm or more snowfall1119641

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 Deerfield 4 NW 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).