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Cumulative cooling degree days, since June 1
The boxes show the average cumulative cooling degree days since June 1. The line shows the cumulative cooling degree days so far this year. Cooling degree days are a measure of the difference in temperature between 65°F and the actual average temperature for that date, when the average temperature is above 65°F. They are a way of showing how warm a particular season has been, and are often used in warmer climates to estimate consumer cooling electric demands because large cooling degree days indicate hot weather (and lots of air conditioning). Cumulative cooling degree days are normally calculated starting on January first, but in Fairbanks the average doesn't rise above zero until June.
If the line on yesterday's date is above the box, this indicates that the summer has been warmer than average. Warm periods are those where the slope line is strongly positive. Cooler periods will show a flatter, or more horizontal line.
For a Portable Document Format (pdf) document of this plot, click here (approximately 3 K).
![[ cumulative cooling degree days ]](images/cooling_degree_days_june_1.png)
Other graphs:
Hourly Data
- Temperature and pressure at the Fairbanks airport (U.S. Standard Units)
- Temperature and pressure at the Fairbanks airport (Metric Units)
- Hourly temperature summary for Middle Tanana Valley stations (plot)
- Current conditions for the Middle Tanana Valley, all reporting stations (table)
Daily Data, Last 90 days
- Ninety day summary (temperature, precipitation, snowfall)
- Ninety day temperature anomaly (daily mean vs. 30 year average mean temperature)
- Ninety day cloud cover
Daily Data, Last year, 90 day plots
- Ninety day summary, last year (temperature, precipitation, snowfall)
- Ninety day temperature anomaly, last year (daily mean vs. 30 year average mean temperature)
Daily Data, Last 180 days
- 180 day summary (temperature, precipitation, snowfall)
- 180 day temperature anomaly (daily mean vs. 30 year average mean temperature)
Daily Data, Year to date
- Yearly summary (temperature, precipitation, snowfall)
- Yearly temperature anomaly (daily mean vs. 30 year average mean temperature)
Daily Data, Cumulative graphs
- Cumulative precipitation so far this month
- Cumulative snowfall, month to date
- Cumulative snowfall since July 1
- Cumulative precipitation anomaly, year to date
- Cumulative heating degree days since July 1
- Cumulative cooling degree days since June 1
Daily Data, Yearly summaries
- Summary for 2006 (temperature, precipitation, snowfall, cloud cover)
- Summary for 2005 (temperature, precipitation, snowfall, cloud cover)
- Summary for 2004 (temperature, precipitation, snowfall, cloud cover)
- Summary for 2003 (temperature, precipitation, snowfall, cloud cover)
- Summary for 2002 (temperature, precipitation, snowfall)
- Summary for 2001 (temperature, precipitation, snowfall)
- Summary for 2000 (temperature, precipitation, snowfall)
- Summary for 1999 (temperature, precipitation, snowfall)
- Summary for 1998 (temperature, precipitation, snowfall)
Sunrise and sunset times for Fairbanks