Local Climate Data from Portland Airport

1. Monthly Extremes or Monthly Normals
   
2. Daily Normals and Records, by Month:
   Jan-Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
   
3. Days Per Month/Year of Highs/Lows of 90, 80, and 32 degrees
4. Temperature Frequency Tables
5. Heat Waves and Cold Snaps
6. Monthly MAXIMUM Temperatures: Downtown or Airport
7. Monthly MINIMUM Temperatures: Downtown or Airport
8. Monthly MEAN Temperatures: Downtown or Airport
9. Warmest/Coldest Months/Years
10. Extreme MAX/MIN Temperatures: Downtown or Airport
11. First/Last Days to reach 70, 80, 90 and 100 deg :Downtown or Airport
12. Heating Degree Days by season/month (1941-2000)
13. Cooling Degree Days by season/month (1941-2000)
14. Freeze Data, with First/Last Freeze Dates Downtown or Airport
15. Julian Day Converter with Leap Years

1. Graph of Monthly Rainfall or >Monthly Extreme/Normals
   
2. Daily Normals and Records, by Month:
   Jan & Feb | Mar & Apr | May & Jun | Jul & Aug | Sep & Oct | Nov & Dec
   
3. Monthly/Annual Rainfall Totals: Downtown or Airport
4. Wettest/Driest 5 Months/Years/Seasons
5. Water Year Totals & Normals (Airport and Downtown)
6. Short Term Rainfall Records (Airport only, 1953-2008)
7. 24-Hour Rainfall Records (Airport and Downtown)
8. Top 10 Wettest days (Downtown and Airport)
9. Most, Least and Average Days in a Month with
   0.01, 0.10, 0.50, 1.00 inch of rain (Airport and Downtown)
10. Rainy Day Streaks with Trace, 0.01, 0.10, and 0.25, 0.50, 1.00
    and 2.00 inches rain in a day: Downtown or Airport
11. Consecutive Days each month with 0.01, 0.10, and 0.25 inch of
    rain: Downtown or Airport
12. Average Days per month with No Rainfall: Downtown or Airport
13. Consecutive Days each month with No Rainfall: Downtown or Airport
14. Days each month with No Rain, Trace, and Rain: Airport
15. Daily Frequency and Probability or Receiving Measureable Rainfall,
    (at least 0.01 inch), and a graphical format: Downtown or Airport
    
16. Monthly & Seasonal Snowfall: Downtown or Airport and NWS Office
17. Short Term Snowfall Records (Airport)
18. Days/Months with Measurable Snowfall (Airport)
19. First and Last Snow of the Season (Airport & Downtown)
20. Consecutive Days in Row with Snow (Airport & Downtown)
21. Snow on Christmas History (Airport & Downtown)
22. Daily Frequency and Probability of Measurable Snow (Downtown)

1. Days in Month with Dense Fog and Foggy Streaks
2. Atmospheric Pressure: Normal and Extremes
3. By Month, Hourly Relative Humidity, by time of day
4. Graph of Hourly Relative Humidity (graphic)
5. Wind: Normal and Extremes
6. Wind: Frequency of Direction, based on time of day
7. Wind: Frequency of Speed, based on direction and time of day
   
   
8. Days per Month: Clear, Partly Cloudy, Cloudy
9. Sky Cover Frequency: January through June
10. Sky Cover Frequency: July through December, and Annual
11. Major Holiday Weather Statistics
12. Rose Parade/Festival Weather Statistics
13. Condensed Climate Statistics

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      Portland, OR 97230
Phone: 503.326.2340
Weather Line: 503.261-9246, -9247

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