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 FORT MADISON, Iowa, 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 FORT MADISON, IA
Daylight chart for {A['location']}, Iowa, USA

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Explanation, Data Sources, Background and Discussion.

Data for FORT MADISON, Iowa, USA

NOAA Station Id: IA133007 Latitude: 40°37'26N Longitude: 091°19'57W Elevation: 530'

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 FORT MADISON, IA, use latitude 40°37'26N and longitude 091°19'57W in the form. You'll need to know the time zone of the location.

Climate (Average Weather) Data

Minimum Temperature°F16.321.93343.854.864.569.967.658.746.534.121.944.42
Maximum Temperature°F31.937.249.361.972.881.886.383.876.664.648.935.860.91
Heating Degree Days12699947403711341008523057061120475.75
Cooling Degree Days0007972554053401311300104.00
Monthly Precipitationinches1.321.573.033.654.924.264.443.563.812.772.962.253.21

First and Last Frost Dates

First FrostLast Frost
OCT 03OCT 20NOV 06MAR 29APR 14APR 30
Explanation of frost dates.

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