Nature calendar: winter has come to Polistovsky Reserve
At the end of November, it became noticeably cold and snowy at Polistovsky Reserve. Since the 25th of November, when there were still a few days left until the calendar winter, the maximum air temperatures have not rise above 0°C, which means that meteorological winter started.
For the first time, the "minus" temperature lasted throughout the day on the 20th of November, and after the 25th the air temperature stayed negative without warmings. If the predictions come true and there will be no long thaws, the winter will strengthen its position, and this year’s autumn will not return to Polistovsky. Of course, unpredictable climate of Pskov Region still can bring surprises, such as New Year's rain in 2017, but the steady weather allows us to hope for frosty and snowy winter.
Let's sum up the meteorological results of the outgoing autumn. Warm, almost summer weather lasted for a long time, until mid-October; the last time the air warmed up to +20°C on the 17th of October. Then a rapid cooling began, and by the end of the month a weather station of Polistovsky Reserve recorded negative temperatures almost daily.
November was also cold, and there were almost no sunny days during the month. From the 10th to the 13th of November, strong winds blew and brought the first big snowfall, which took place in the Reserve on the 14th of November. After that it became wintry cold, and on the 26th of November the snow fell again, and, apparently, is not going to melt. The minimum air temperature was recorded by the weather station on the 28th of November: at 9 pm, the thermometer dropped to -15.6°C.
According to the Orthodox Calendar actively used in Russia in the past, today, the 29th of November, is Saint Matthew's Day. Thaws are often at this time, so our ancestors joked: “Winter is sweating at the Matthew's”. This year the sign did not come true, but another one probably will: “If the clouds go low, it will be cold” (according to forecasts, the frosts will last for several more days). In the old days in Russia, it was customary to make visits at the Matthew's Day: despite the Nativity Fast, people gathered around the table and had sincere conversations.