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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Mc Dowell Threshold Days by Year (USC00445414)

13 fixed thresholds counted per year at Mc Dowell (USC00445414): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mc Dowell Thresholds

  • Mc Dowell: days with 10 mm (0.39 in) or more of precipitation in 11 years, most in 1979 with 48.
  • Mc Dowell: days with 25 mm (0.98 in) or more of precipitation in 11 years, most in 1969 with 14.
  • Mc Dowell: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1971 with 3.
  • Mc Dowell: days with 10 cm (3.9 in) or more of snowfall in 5 years, most in 1966 with 6.
  • 13 fixed thresholds have at least one qualifying day at Mc Dowell.
11 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Mc Dowell Days per year at Mc Dowell with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1979. 02040601904: 121966: 301968: 241969: 411971: 381975: 331976: 321977: 331978: 381979: 481980: 33190419681971197619781980
Days per year at Mc Dowell with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1979.
Days with 10 mm (0.39 in) or more of precipitation per year at Mc Dowell
YearDaysDecade average
19041212
19663031.7
19682431.7
19694131.7
19713837
19753337
19763237
19773337
19783837
19794837
19803333
First to last qualifying date each year at Mc Dowell For each year, a bar from the first to the last day at Mc Dowell meeting 10 mm (0.39 in). 1904: 2 January 1904 to 16 December 19041966: 2 January 1966 to 28 December 19661968: 12 March 1968 to 28 December 19681969: 18 January 1969 to 31 December 19691971: 1 January 1971 to 7 December 19711975: 5 February 1975 to 26 December 19751976: 1 January 1976 to 7 December 19761977: 10 January 1977 to 18 December 19771978: 8 January 1978 to 25 December 19781979: 1 January 1979 to 26 November 19791980: 5 January 1980 to 25 November 1980190419681971197619781980JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mc Dowell meeting 10 mm (0.39 in).
First to last qualifying date each year at Mc Dowell
YearFirst dateLast date
19041904-01-021904-12-16
19661966-01-021966-12-28
19681968-03-121968-12-28
19691969-01-181969-12-31
19711971-01-011971-12-07
19751975-02-051975-12-26
19761976-01-011976-12-07
19771977-01-101977-12-18
19781978-01-081978-12-25
19791979-01-011979-11-26
19801980-01-051980-11-25

Every Fixed Threshold

Fixed thresholds at Mc Dowell
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days157190457
35 C (95 F): Days1119041
90 F (32.2 C): Days120190420
0 C (32 F): Ice days (max1319043
0 C (32 F): Frost days (min11481904148
-10 C (14 F): Days with min143190443
-20 C (-4 F): Days with min1619046
20 C (68 F): Tropical nights (min1219042
10 mm (0.39 in): Days with 10 mm or more rain1148197933
25 mm (0.98 in): Days with 25 mm or more rain111419699
50 mm (1.97 in): Days with 50 mm or more rain8319711
100 mm (3.94 in): Days with 100 mm or more rain1119711
10 cm (3.9 in): Days with 10 cm or more snowfall5619664

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

Download the Data

  • Data for Mc Dowell 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).