Khudjand Weather Records (TI000038599)

The fitted trend in annual mean temperature here over 1936 to 2025 is 0.09 C (-0.02 to 0.20) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.17 F (-0.03 to 0.36) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.

Across 58 years with a frost, the median last spring frost at Khudjand falls on 18 March and the median first autumn frost on 7 November, which leaves a median of 238 days between them.

Fitted over all years, the growing season changes by +1.6 days per decade at this station.

A day with at least 16.5 mm (0.6 in) of rain is expected about once in 2 years. A day with at least 41.3 mm (1.6 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, 60 years of values from 1936 to 1996.

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: 38.4 mm (1.5 in) in 1977; 33.9 mm (1.3 in) in 1969; 32.9 mm (1.3 in) in 1938.

2 changes were suspected in the annual mean temperature of Khudjand, at 1969 and 1983. Each is measured against neighbouring stations.

• Relative to 4 neighbouring stations, the station's annual mean temperature from 1969 ran 0.4 C (0.7 F) lower than in the years before (likely change).
• Relative to 4 neighbouring stations, the station's annual mean temperature from 1983 ran 0.3 C (0.5 F) lower than in the years before (likely change).