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 PORTHILL, Idaho, 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 PORTHILL, ID
Daylight chart for {A['location']}, Idaho, USA

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Explanation, Data Sources, Background and Discussion.

Data for PORTHILL, Idaho, USA

NOAA Station Id: ID107264 Latitude: 48°59'45N Longitude: 116°30'11W Elevation: 1775'

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 PORTHILL, ID, use latitude 48°59'45N and longitude 116°30'11W in the form. You'll need to know the time zone of the location.

Climate (Average Weather) Data

Minimum Temperature°F17.821.527.233.641.147.3514940.43226.319.333.88
Maximum Temperature°F33.338.848.559.368.174.581.681.871.256.741.633.857.43
Heating Degree Days122497684255632815671842896409321192607.50
Cooling Degree Days0000533111971200021.50
Monthly Precipitationinches2.131.691.521.431.921.851.341.211.241.412.762.411.74

First and Last Frost Dates

First FrostLast Frost
SEP 11SEP 24OCT 06APR 25MAY 11MAY 27
Explanation of frost dates.

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