Peterborough Stp Threshold Days by Year (CA006166450)

12 fixed thresholds counted per year at Peterborough Stp (CA006166450): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Peterborough Stp Thresholds

Peterborough Stp: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1982 with 38.
Peterborough Stp: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1967 with 8.
Peterborough Stp: days with 10 cm (3.9 in) or more of snowfall in 19 years, most in 1976 with 6.
Peterborough Stp: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1973 with 18.
12 fixed thresholds have at least one qualifying day at Peterborough Stp.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Peterborough Stp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 1973.

Days at or above 30 C (86 F) per year at Peterborough Stp
Year	Days	Decade average
1970	10	8.9
1971	5	8.9
1972	4	8.9
1973	18	8.9
1974	5	8.9
1975	16	8.9
1976	5	8.9
1977	9	8.9
1978	10	8.9
1979	7	8.9
1980	2	6.8
1981	5	6.8
1982	4	6.8
1983	16	6.8

For each year, a bar from the first to the last day at Peterborough Stp meeting 30 C (86 F).

First to last qualifying date each year at Peterborough Stp
Year	First date	Last date
1970	1970-07-27	1970-08-15
1971	1971-06-29	1971-08-10
1972	1972-07-12	1972-07-23
1973	1973-06-11	1973-09-05
1974	1974-07-04	1974-08-21
1975	1975-05-23	1975-08-10
1976	1976-06-08	1976-07-05
1977	1977-05-17	1977-09-01
1978	1978-05-26	1978-08-15
1979	1979-06-16	1979-07-24
1980	1980-05-23	1980-08-07
1981	1981-06-15	1981-07-11
1982	1982-07-07	1982-07-18
1983	1983-06-13	1983-09-10

Every Fixed Threshold

Fixed thresholds at Peterborough Stp
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	18	1973	16
90 F (32.2 C): Days	6	6	1973	1
0 C (32 F): Ice days (max	14	90	1978	59
0 C (32 F): Frost days (min	14	177	1972	156
-10 C (14 F): Days with min	14	78	1978	50
-20 C (-4 F): Days with min	14	19	1976	10
-30 C (-22 F): Days with min	6	3	1981	1
20 C (68 F): Tropical nights (min	14	8	1975	8
10 mm (0.39 in): Days with 10 mm or more rain	19	38	1982	26
25 mm (0.98 in): Days with 25 mm or more rain	19	8	1967	4
50 mm (1.97 in): Days with 50 mm or more rain	7	2	1980	1
10 cm (3.9 in): Days with 10 cm or more snowfall	19	6	1976	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.

Download the Data

Data for Peterborough Stp 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Peterborough Stp Threshold Days by Year (CA006166450)

Key Facts for Peterborough Stp Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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