OTTUMWA AP, Iowa, USA:
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 OTTUMWA AP, 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 OTTUMWA AP, IA
Daylight chart for {A['location']}, Iowa, USA

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Explanation, Data Sources, Background and Discussion.

Data for OTTUMWA AP, Iowa, USA

NOAA Station Id: IA136389 Latitude: 41°06'28N Longitude: 092°26'48W Elevation: 842'

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 OTTUMWA AP, IA, use latitude 41°06'28N and longitude 092°26'48W in the form. You'll need to know the time zone of the location.

Climate (Average Weather) Data

StatisticUnitsJanFebMarAprMayJunJulAugSepOctNovDecAverage
Minimum Temperature°F13.819.830.541.653.262.767.164.455.243.53119.141.83
Maximum Temperature°F30.13648.661.572.682.286.283.97663.947.734.160.23
Heating Degree Days1336103978941114810113823577691190512.08
Cooling Degree Days00088223336229610070090.67
Monthly Precipitationinches11.162.353.284.564.514.454.034.072.752.421.322.99

First and Last Frost Dates


First FrostLast Frost
10%50%90%10%50%90%
OCT 01OCT 16OCT 30APR 01APR 13APR 26
Explanation of frost dates.


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