Monthly Reports From the Bavarian Forest

Every month brings its own weather, and nowhere is that as noticeable as in a low mountain region with as many climate facets as the Bavarian Forest. In the monthly reports of our Zenting-Daxstein weather station we condense 28 to 31 days of observation into a meaningful overall picture. Here you will find not only dry rows of numbers but also narrative passages that make the weather easy to follow. If you want to know whether last month was too warm or too cold, wet or rather dry, and how many hours of sunshine were counted, this page is the right place. Striking single events such as severe thunderstorms, long high-pressure spells or unusual snowfalls also find a place in our reports. The result is a running chronicle that draws the climate around Zenting month by month.

How a Monthly Report Comes About

At the end of each month, all the daily data are first checked, tested for plausibility and merged into one large table before the actual evaluation begins. From the hourly values we first calculate daily means, which in turn are combined into the monthly mean, allowing a quick comparison with long-term averages. Next the extremes are picked out, meaning the warmest and coldest day, the wettest 24-hour period or the highest wind speed recorded. Hours of sunshine and radiation totals are also worked out and set against previous years. Only then does the written evaluation get under way, in which we divide the month into weather patterns and briefly describe the main spells of weather. The result is a compact, readable report that suits both specialists and interested laypeople.

Which Values We Take Into Account

At the center first is air temperature, with its daily maximum, daily minimum and the mean, which is indispensable for climatological comparisons. Alongside, we record precipitation in millimeters, distinguishing rain, snow, sleet and freezing precipitation. Snow depth and the number of days with continuous snow cover play an important role in the winter months for how meaningful the report is. In addition, we take humidity, air pressure and soil temperature at various depths into account, which together map out what is happening in the atmosphere. Wind and wind direction are logged, as are the number of days with frost, ice, summery warmth or even heat. In combination these many parameters give a realistic and reliable picture of the weather that goes far beyond a simple weather trend.

Charts and Visual Presentation

Plain tables of numbers are often hard to digest, so our monthly reports come with detailed charts that make the data easy to grasp. Temperature curves show the course of the daily means, set between the extremes and the long-term comparison average. Precipitation bars show individual rain events as columns, so even long dry spells or concentrated days of rain catch the eye immediately. An additional snow depth curve rounds out the picture in winter and shows when the snow came, how it developed and when it disappeared again. Wind is shown as a wind rose, which tells you from which direction the most frequent and strongest gusts came. Even complex weather developments can thus be taken in at a glance, with no deep meteorological background needed.

Comparison With Long-Term Averages

A single monthly value becomes truly meaningful only when it is set in the context of a long-term average, which we apply consistently in our reports. As the reference period we currently use recognized climatological comparison periods and add our own older observation series from the region. That makes it clear whether a month was above average, normal or cool, and by how much it deviated. Precipitation and hours of sunshine are put in context at the same time, which yields exciting insights especially after extreme dry spells or unusually wet weeks. Seasonal oddities such as a winter arriving too early or too late can also be assessed on this basis. Readers thus get not just numbers but a genuine climatological assessment that makes long-term developments visible.

Typical Spells of Weather Through the Year

Follow the monthly reports over several years and you quickly notice recurring patterns that are typical of our climate in the Bavarian Forest. January often brings the longest frosty spells, though sometimes also mild westerly weather with thaws that melt the snow in the valley early. February likes to be changeable, with heavy snowfalls and short high-pressure spells in which the sun shines above a sea of fog in the valleys. Spring and summer follow an increasingly marked tendency toward warmer averages, which we document critically in our reports. Late summer and autumn often bring the first cool nights with ground frost at higher elevations, while mild days still prevail in the valley. Such typical phases, their deviations and surprises are worked out in each of our reports without the texts getting too dry or too technical.

Benefits for the Region, Hobbyists and Science

Our monthly reports are far more than a meteorological chore and are in fact used heavily in the region, as we are told again and again. Farmers use them to place their growing phases in context and, for example, to document a May that was too dry or an August that was too wet. Beekeepers keep an eye on foraging conditions for their colonies through the precipitation and temperature values, which is decisive for the honey harvest. Tourism businesses look mainly at hours of sunshine and snow depths, because these directly affect overnight stays and guest satisfaction. Students use our reports for presentations, local historians for historical work and amateur meteorologists for comparison studies of their own. Even small scientific institutions occasionally draw on our series, because regionally they supply a valuable building block between the big stations. A simple monthly report thus becomes a versatile tool that shows the Bavarian Forest in all its climatic variety. For an overview of long-term development, see also the Annual Reviews, while the Station Profile explains the technical background.