Blue River A Threshold Days by Year (CA001160899)

15 fixed thresholds counted per year at Blue River A (CA001160899): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Blue River A Thresholds

Blue River A: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1971 with 28.
Blue River A: days with a maximum temperature at or below 0 C (32 F) in 14 years, most in 1975 with 91.
Blue River A: nights with a minimum temperature at or below 0 C (32 F) in 14 years, most in 1972 with 213.
Blue River A: nights with a minimum temperature at or below -10 C (14 F) in 14 years, most in 1975 with 88.
15 fixed thresholds have at least one qualifying day at Blue River A.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Blue River A with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1971.

Days at or above 30 C (86 F) per year at Blue River A
Year	Days	Decade average
1970	25	13.6
1971	28	13.6
1972	8	13.6
1973	16	13.6
1974	9	13.6
1975	10	13.6
1976	2	13.6
1977	9	13.6
1978	12	13.6
1979	17	13.6
1980	2	9.3
1981	16	9.3
1982	10	9.3
1983	9	9.3

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

First to last qualifying date each year at Blue River A
Year	First date	Last date
1970	1970-06-02	1970-08-23
1971	1971-06-22	1971-08-29
1972	1972-05-29	1972-08-28
1973	1973-05-15	1973-08-14
1974	1974-06-15	1974-08-04
1975	1975-07-03	1975-07-27
1976	1976-07-16	1976-07-25
1977	1977-06-07	1977-08-20
1978	1978-06-03	1978-08-09
1979	1979-06-28	1979-08-29
1980	1980-06-14	1980-07-31
1981	1981-07-17	1981-09-08
1982	1982-06-13	1982-08-08
1983	1983-05-28	1983-08-09

Every Fixed Threshold

Fixed thresholds at Blue River A
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	28	1971	9
35 C (95 F): Days	4	4	1971	3
90 F (32.2 C): Days	12	19	1971	2
100 F (37.8 C): Days	1	1	1971	1
0 C (32 F): Ice days (max	14	91	1975	66
0 C (32 F): Frost days (min	14	213	1972	188
-10 C (14 F): Days with min	14	88	1975	35
-20 C (-4 F): Days with min	14	33	1972	15
-30 C (-22 F): Days with min	13	12	1979	6
-40 C (-40 F): Days with min	2	2	1972	1
10 mm (0.39 in): Days with 10 mm or more rain	14	37	1972	27
25 mm (0.98 in): Days with 25 mm or more rain	12	5	1975	2
10 cm (3.9 in): Days with 10 cm or more snowfall	14	29	1974	9
25 cm (9.8 in): Days with 25 cm or more snowfall	12	3	1972	3
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1972	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 Blue River A 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).

Blue River A Threshold Days by Year (CA001160899)

Key Facts for Blue River A Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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