Climate, Global Warming, and Daylight Charts and Data

Scroll down to see the all the data on which the charts are based. Also see Explanation, background, and discussion.
Global Warming/Climate Change for DULUTH INTL AP, Minnesota, USA

One predicted temperature increase is
between 3°C and 5°C (5.4°F and 9.0°F).
See About the Global Warming Data for more information about this prediction.

climate chart for DULUTH INTL AP, MN
Daylight chart for {A['location']}, Minnesota, USA

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Explanation, Data Sources, Background and Discussion.

Data for DULUTH INTL AP, Minnesota, USA

NOAA Station Id: MN212248 Latitude: 46°50'13N Longitude: 092°12'36W Elevation: 1422'

Sunrise and Sunset Data

The yellow section shows when the sun is up, and how this changes over the year. Use the time-of-day scales, on the left and right, and the month scale on the top and bottom, to tell approximately when sunrise and sunset occur. See Sunrise, Sunset, and Daylight for more info.

The sunrise and sunset times shown in the chart are approximate. They are accurate for the latitude, and show the precise amount of daylight, but the rise and set times may be offset (up or down in the chart) since I don't have an automated way of matching time zones to longitudes. The charts are made assuming that the location is in the middle of an evenly spaced time zone.

For precise times see US Naval Observatory. For DULUTH INTL AP, MN, use latitude 46°50'13N and longitude 092°12'36W in the form. You'll need to know the time zone of the location.

Climate (Average Weather) Data

Minimum Temperature°F-
Maximum Temperature°F17.924.434.24963.471.276.373.964.552.535.222.348.73
Heating Degree Days1771142212447874211806910633168211241587810.33
Cooling Degree Days000072882601200015.75
Monthly Precipitationinches1.120.831.692.092.954.

First and Last Frost Dates

First FrostLast Frost
SEP 11SEP 23OCT 04MAY 03MAY 21JUN 08
Explanation of frost dates.

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