Zmeinogorsk Weather Records (RSM00036038)

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1930 to 2018. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 76 complete years; the brackets give its 95 percent interval.

Across 76 years with a frost, the median last spring frost at Zmeinogorsk falls on 23 May and the median first autumn frost on 15 September, which leaves a median of 117 days between them.

In 1986 to 2018 the median growing season was 114 days. That is 6 days fewer than in 1930 to 1965.

Fitted over all years, the growing season changes by -1.3 days per decade at this station.

A day with at least 32.2 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 92.5 mm (3.6 in) of rain is expected about once in 100 years.

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 93 years of values from 1902 to 2022.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 113.2 mm (4.5 in) in 1959; 67.3 mm (2.6 in) in 1957; 67.2 mm (2.6 in) in 1988.

One change was suspected in the annual mean temperature of Zmeinogorsk, at 1962. Each is measured against neighbouring stations.

• Relative to 4 neighbouring stations, the station's annual mean temperature from 1962 ran 0.3 C (0.6 F) lower than in the years before (likely change).