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New York City Weather Chart

New York Weather Chart

January 4, 2004, p. A-15

The annual review of the weather by The New York Times appears below. It shows daily high and low temperatures for 2003, for a normal year, and for record days, along with cumulative monthly precipitation. Some interesting inferences about average, variation, and rates of change over the seasons can be made visually. Note the flat part of the cycle through mid-December to mid-February and then a fairly rapid rise in temperature mid-February to May. And so on.

-- Edward Tufte

Response to New York Weather Chart, 2003

The figure I've always known about was for centimetres and a factor of ten. For example, 17cm of snowfall will be 17mm of rainfall. Of course, this is, at best, an estimation as the flake formation plays a part in how well snow packs.

Snow depth is a very difficult thing to estimate, too. Wind disturbance and melting all have to be taken into account. It is even more complicated when there is a mixture of snow and rain. The snow depth needs to be measured, then all the snow and rain in the rainguage (including the collecting funnel) is melted and measured, and the snow to rain converted value of the snowfall is subtracted to get the rainfall amount.

-- Adam (email)

Response to New York Weather Chart, 2003

Here's a six month cloudiness and solar azimuth map in Bristol UK, created with a can, a pinhole, and a piece of film. All data formatting is done by celestial motion.

-- Ron Wurtz (email)

Response to New York Weather Chart, 2003

Since seeing this graph, I have searched for a web site that would show such data for any location and time-span. I have found one: WeatherSpark.

-- David McCabe (email)

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