Santa Rita 20 N Threshold Days by Year (USC00247362)

14 fixed thresholds counted per year at Santa Rita 20 N (USC00247362): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Santa Rita 20 N Thresholds

Santa Rita 20 N: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1978 with 19.
Santa Rita 20 N: days with 25 mm (0.98 in) or more of precipitation in 17 years, most in 1978 with 6.
Santa Rita 20 N: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1970 with 31.
Santa Rita 20 N: days with a maximum temperature at or below 0 C (32 F) in 14 years, most in 1978 with 101.
14 fixed thresholds have at least one qualifying day at Santa Rita 20 N.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Santa Rita 20 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 31 in 1970.

For each year, a bar from the first to the last day at Santa Rita 20 N meeting 30 C (86 F).

First to last qualifying date each year at Santa Rita 20 N
Year	First date	Last date
1970	1970-06-03	1970-08-31
1977	1977-06-02	1977-07-24
1978	1978-07-15	1978-09-04
1979	1979-07-19	1979-09-09
1980	1980-05-22	1980-09-07
1981	1981-07-05	1981-09-19
1982	1982-07-30	1982-08-21
1983	1983-08-01	1983-09-02
1984	1984-06-29	1984-08-26
1985	1985-06-30	1985-08-05
1986	1986-05-31	1986-08-30
1987	1987-06-14	1987-09-03
1988	1988-06-17	1988-09-07
1989	1989-07-08	1989-08-13

Every Fixed Threshold

Fixed thresholds at Santa Rita 20 N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	31	1970	6
35 C (95 F): Days	3	2	1983	2
90 F (32.2 C): Days	12	14	1970	2
0 C (32 F): Ice days (max	14	101	1978	57
0 C (32 F): Frost days (min	9	211	1970	148
-10 C (14 F): Days with min	9	102	1982	36
-20 C (-4 F): Days with min	9	36	1970	4
-30 C (-22 F): Days with min	8	5	1977	4
10 mm (0.39 in): Days with 10 mm or more rain	24	19	1978	12
25 mm (0.98 in): Days with 25 mm or more rain	17	6	1978	3
50 mm (1.97 in): Days with 50 mm or more rain	6	2	1978	1
10 cm (3.9 in): Days with 10 cm or more snowfall	14	17	1985	13
25 cm (9.8 in): Days with 25 cm or more snowfall	4	3	1982	2
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1982	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 Santa Rita 20 N 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Year	Days	Decade average
1970	31	11.8
1977	6	11.8
1978	4	11.8
1979	6	11.8
1980	5	13
1981	14	13
1982	5	13
1983	13	13
1984	21	13
1985	15	13
1986	10	13
1987	13	13
1988	28	13
1989	6	13

Santa Rita 20 N Threshold Days by Year (USC00247362)

Key Facts for Santa Rita 20 N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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