How to Read the Monthly Summary Form
Column 1 Day The day of the month.
Column 2 Max The day's high temperature.
Column 3 Min The day's low temperature.
Column 4 Avg The day's average temperature.
Column 5 Dep The average temperature's departure from normal.
Column 6a HDD Heating Degree Days (65 - Avg = # of HDD). Use when the average temperature (Avg) is less than 65.
Column 6b CDD Cooling Degree Days (Avg - 65 = # of CDD). Use when the average temperature (Avg) is greater than 65.
Column 7 Wtr The water equivalent of the day's precipitation.
Column 8 Snw The day's snowfall.
Column 9 Dpth The depth of the snow, measured at midnight. (Unavailable for most events.)
Column 10 Avg The average wind speed in miles per hour.
Column 11 Spd The fastest 2 minute wind speed (in mph).
Column 12 Dir The direction of the day's fastest 2 minute wind speed. Where 90 is a wind from the east, 360 a wind from the north, etc.
Column 13 Min Minutes of Sunshine. Not used!
Column 14 PSBL The percentage of possible minutes of sunshine.
Column 15 S-S No longer used!
Column 16 Wx Weather (wx) codes for the day.
1 = Mist
2 = Fog
3 = Thunderstorm
4 = Ice Pellets
5 = Hail / Snow Pellets
6 = Freezing Rain / Freezing Drizzle
7 = Widespread Dust / Sandstorm
8 = Haze
9 = Blowing Snow
X = Funnel Cloud
Column 17 Min The highest wind gust for the day (in mph).
Column 18 Day The direction of the day's peak wind gust.

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