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 PETALUMA FIRE STA 2, California, 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 PETALUMA FIRE STA 2, CA
Daylight chart for {A['location']}, California, USA

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Explanation, Data Sources, Background and Discussion.

Data for PETALUMA FIRE STA 2, California, USA

NOAA Station Id: CA046826 Latitude: 38°16'02N Longitude: 122°39'27W Elevation: 31'

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 PETALUMA FIRE STA 2, CA, use latitude 38°16'02N and longitude 122°39'27W in the form. You'll need to know the time zone of the location.

Climate (Average Weather) Data

Minimum Temperature°F38.941.242.544.246.950.251.852.151.547.542.237.745.56
Maximum Temperature°F57.962.665.369.873.979.382.782.882.277.165.958.171.47
Heating Degree Days51536634524716765221332110329530228.42
Cooling Degree Days00082356938888272032.08
Monthly Precipitationinches5.415.313.851.40.620.

First and Last Frost Dates

First FrostLast Frost
OCT 29NOV 27DEC 26JAN 13FEB 28APR 15
Explanation of frost dates.

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