Official NWS Observations By Dr. Greg Latta,
Official NWS Observer
April 2013

Temperatures:

TMax=Maximum temperature between 7 A.M. the previous day and 7 A.M. on the day indicated.
TMin=Minimum temperature between 7 A.M. the previous day and 7 A.M. on the day indicated.
TCur=Current temperature at 7 A.M. on the day indicated.
All temperatures are in degrees Fahrenheit

Precipitation Amounts and Current Weather:

RainEq=Rain or rain equivalent of melted snow, sleet, or ice.
SnowEtc=Amount of snowfall between 7 A.M. the previous day and 7 A.M. on the day indicated.
SnowOnGround=Total average amount of snow on the ground at 7 A.M. on the day indicated.
All precipitation amounts are in inches.
0.001 inches=Trace
Current Weather=Current weather at 7 A.M. on the day indicated.
See the chart below for a list of weather codes and their meanings. If more than one code applies the higher code is always used.

Current Weather codes:
01     Clear Sky (few or no clouds)
02     Partly Cloudy
03     Mostly Cloudy/Cloudy (little or no blue sky or stars)
04     Smoke (resulting from forest fires)
05     Haze
07     Dust and/or Sand raised by the wind
10     Light fog (visibility greater than 1/2 mile)
13     Lightning (with no thunder heard)
17     Thunderstorm (with no rain or snow)
45     Fog (visibility less than 1/2 mile)
51     Drizzle (light)
53     Drizzle (moderate)
55     Drizzle (heavy)
61     Rain (light)
63     Rain (moderate)
65     Rain (heavy)
66     Rain (freezing)
68     Rain and Snow Mixed
71     Snow (light)
73     Snow (moderate)
75     Snow (heavy)
79     Sleet
80     Rain Showers
83     Mixed Showers of Rain and Snow
85     Snow Showers (light)
86     Snow Showers (moderate or heavy)
89     Hail (no thunder heard)
93     Thunderstorm with Rain
94     Thunderstorm with Snow
95     Thunderstorm with Rain and Snow
96     Thunderstorm with hail smaller than dime sized
97     Thunderstorm with heavy rain and/or heavy snow
99     Thunderstorm with hail larger than a dime

Other Observations:

A "1" indicates that the condition occurred somewhere between 7 A.M. the previous day and 7 A.M. on the day indicated.