Kihnio Aitoneva Threshold Days by Year (FIE00143491)

8 fixed thresholds counted per year at Kihnio Aitoneva (FIE00143491): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Kihnio Aitoneva Thresholds

Kihnio Aitoneva: nights with a minimum temperature at or below 0 C (32 F) in 34 years, most in 1968 with 208.
Kihnio Aitoneva: nights with a minimum temperature at or below -10 C (14 F) in 34 years, most in 1969 with 92.
Kihnio Aitoneva: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1988 with 22.
Kihnio Aitoneva: days with a maximum temperature at or below 0 C (32 F) in 33 years, most in 1969 with 127.
8 fixed thresholds have at least one qualifying day at Kihnio Aitoneva.

Days at or above 30 C (86 F)

7 years with a qualifying day

Days per year at Kihnio Aitoneva with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1977.

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

First to last qualifying date each year at Kihnio Aitoneva
Year	First date	Last date
1960	1960-07-28	1960-07-28
1963	1963-08-01	1963-08-01
1964	1964-06-15	1964-06-15
1972	1972-06-28	1972-06-28
1973	1973-06-24	1973-06-24
1977	1977-06-14	1977-06-15
1988	1988-06-27	1988-06-27

Every Fixed Threshold

Fixed thresholds at Kihnio Aitoneva
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	7	2	1977	1
0 C (32 F): Ice days (max	33	127	1969	86
0 C (32 F): Frost days (min	34	208	1968	187
-10 C (14 F): Days with min	34	92	1969	33
-20 C (-4 F): Days with min	33	50	1985	4
-30 C (-22 F): Days with min	9	11	1987	11
10 mm (0.39 in): Days with 10 mm or more rain	34	22	1988	15
25 mm (0.98 in): Days with 25 mm or more rain	23	3	1986	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

Data for Kihnio Aitoneva 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).

Kihnio Aitoneva Threshold Days by Year (FIE00143491)

Key Facts for Kihnio Aitoneva Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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