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

Mahone Bay Threshold Days by Year (CA008203300)

15 fixed thresholds counted per year at Mahone Bay (CA008203300): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mahone Bay Thresholds

  • Mahone Bay: days with 10 cm (3.9 in) or more of snowfall in 36 years, most in 1956 with 12.
  • Mahone Bay: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1958 with 63.
  • Mahone Bay: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1959 with 22.
  • Mahone Bay: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1953 with 6.
  • 15 fixed thresholds have at least one qualifying day at Mahone Bay.
8 years with a qualifying day
Days at or above 30 C (86 F) per year at Mahone Bay Days per year at Mahone Bay with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 10 in 1955. 0358101953: 31954: 11955: 101956: 21957: 51958: 11959: 31960: 519531954195519561957195819591960
Days per year at Mahone Bay with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 10 in 1955.
Days at or above 30 C (86 F) per year at Mahone Bay
YearDaysDecade average
195333.6
195413.6
1955103.6
195623.6
195753.6
195813.6
195933.6
196055
First to last qualifying date each year at Mahone Bay For each year, a bar from the first to the last day at Mahone Bay meeting 30 C (86 F). 1953: 20 June 1953 to 2 September 19531954: 22 June 1954 to 22 June 19541955: 19 June 1955 to 22 August 19551956: 16 June 1956 to 18 August 19561957: 8 May 1957 to 20 July 19571958: 24 July 1958 to 24 July 19581959: 28 July 1959 to 15 August 19591960: 28 June 1960 to 8 September 196019531954195519561957195819591960JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mahone Bay meeting 30 C (86 F).
First to last qualifying date each year at Mahone Bay
YearFirst dateLast date
19531953-06-201953-09-02
19541954-06-221954-06-22
19551955-06-191955-08-22
19561956-06-161956-08-18
19571957-05-081957-07-20
19581958-07-241958-07-24
19591959-07-281959-08-15
19601960-06-281960-09-08

Every Fixed Threshold

Fixed thresholds at Mahone Bay
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days81019555
90 F (32.2 C): Days4319551
0 C (32 F): Ice days (max855195532
0 C (32 F): Frost days (min81761956145
-10 C (14 F): Days with min868195931
-20 C (-4 F): Days with min81319574
-30 C (-22 F): Days with min1119541
20 C (68 F): Tropical nights (min1119551
10 mm (0.39 in): Days with 10 mm or more rain3563195834
25 mm (0.98 in): Days with 25 mm or more rain3522195910
50 mm (1.97 in): Days with 50 mm or more rain32619534
100 mm (3.94 in): Days with 100 mm or more rain7119341
10 cm (3.9 in): Days with 10 cm or more snowfall3612195610
25 cm (9.8 in): Days with 25 cm or more snowfall12219262
50 cm (19.7 in): Days with 50 cm or more snowfall1119601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

Download the Data

  • Data for Mahone Bay 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).