Fertile Threshold Days by Year (CA004012485)

16 fixed thresholds counted per year at Fertile (CA004012485): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fertile Thresholds

Fertile: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1980 with 28.
Fertile: days with a maximum temperature at or above 90 F (32.2 C) in 14 years, most in 1980 with 11.
Fertile: days with a maximum temperature at or below 0 C (32 F) in 14 years, most in 1972 with 130.
Fertile: nights with a minimum temperature at or below 0 C (32 F) in 14 years, most in 1979 with 214.
16 fixed thresholds have at least one qualifying day at Fertile.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Fertile with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1980.

Days at or above 30 C (86 F) per year at Fertile
Year	Days	Decade average
1970	19	13.2
1971	13	13.2
1972	11	13.2
1973	12	13.2
1974	11	13.2
1975	12	13.2
1976	10	13.2
1977	12	13.2
1978	16	13.2
1979	16	13.2
1980	28	22.5
1981	20	22.5
1982	15	22.5
1983	27	22.5

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

First to last qualifying date each year at Fertile
Year	First date	Last date
1970	1970-06-04	1970-09-05
1971	1971-08-05	1971-09-02
1972	1972-05-16	1972-08-30
1973	1973-06-01	1973-08-31
1974	1974-06-19	1974-08-07
1975	1975-06-25	1975-08-06
1976	1976-07-24	1976-09-17
1977	1977-05-10	1977-07-23
1978	1978-06-09	1978-09-10
1979	1979-06-12	1979-09-16
1980	1980-04-20	1980-09-07
1981	1981-07-01	1981-09-18
1982	1982-05-03	1982-09-10
1983	1983-06-10	1983-09-01

Every Fixed Threshold

Fixed thresholds at Fertile
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	28	1980	27
35 C (95 F): Days	9	5	1978	4
90 F (32.2 C): Days	14	11	1980	11
100 F (37.8 C): Days	1	1	1979	1
0 C (32 F): Ice days (max	14	130	1972	116
0 C (32 F): Frost days (min	14	214	1979	202
-10 C (14 F): Days with min	14	128	1970	101
-20 C (-4 F): Days with min	14	85	1978	43
-30 C (-22 F): Days with min	14	28	1982	12
-40 C (-40 F): Days with min	2	1	1978	1
20 C (68 F): Tropical nights (min	4	1	1970	1
10 mm (0.39 in): Days with 10 mm or more rain	14	24	1975	12
25 mm (0.98 in): Days with 25 mm or more rain	13	7	1975	2
50 mm (1.97 in): Days with 50 mm or more rain	4	1	1970	1
10 cm (3.9 in): Days with 10 cm or more snowfall	13	9	1975	2
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1970	1

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 Fertile 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).

Fertile Threshold Days by Year (CA004012485)

Key Facts for Fertile Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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