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 TONSINA, Alaska, USA

One predicted temperature increase is
between 5°C and 10°C (9.0°F and 18.0°F).
See About the Global Warming Data for more information about this prediction.

climate chart for TONSINA, AK
Daylight chart for {A['location']}, Alaska, USA

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Explanation, Data Sources, Background and Discussion.

Data for TONSINA, Alaska, USA

NOAA Station Id: AK509385 Latitude: 61°39'17N Longitude: 145°10'23W Elevation: 1575'

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 TONSINA, AK, use latitude 61°39'17N and longitude 145°10'23W in the form. You'll need to know the time zone of the location.

Climate (Average Weather) Data

Minimum Temperature°F-12.7-
Maximum Temperature°F3.41428.943.255.765.869.365.353.735.214.66.537.97
Heating Degree Days21611743156610406933902814127041203175720571167.25
Cooling Degree Days0000000000000.00
Monthly Precipitationinches0.860.840.450.280.471.241.751.441.

First and Last Frost Dates

First FrostLast Frost
AUG 01AUG 12AUG 23JUN 13JUL 03JUL 24
Explanation of frost dates.

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