Weather

Conditions: Overcast
Temp: 66°
Wind: East 13
Pressure: 0
Dewpoint: 61°
Relative Humidity: 84

Seven Day Forecast

Mostly cloudy today with a high around 72* today. Rain and/or Thunderstorms redeveloping later today. The wind at 10-25 mph from the northeast. Tonight, Periods of Rain with a low in the lower 50s. Tomorrow and Tuesday more periods of rain expected with highs perhaps staying in the 50s.

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Weather Key:

–  indicates negative numbers
R  indicates record was set or tied
MM  indicates data missing
T  indicates trace amount

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December 17, 2012

Temperature

	Observed	Time	Record	Year	Normal	Normal Departure	Last Year
High	24°	1159 PM	47°	1890	22°	2°	38°
Low	16°	905 AM	-25°	1884	5°	11°	15°
Average	20°				13°	7°	27°

Precipitation

	Observed	Record	Year	Normal	Normal Departure	Last Year
Precipitation	T	0.49	1977	0.02	-0.02	0.00
Month to Date	0.14	0.44			-0.30	0.03
SINCE DEC 1	0.14	0.44			-0.30	0.03
Since Jan. 1	14.29	22.22			-7.93	23.62

Snow

	Observed	Record	Year	Normal	Normal Departure	Last Year
Snowfall	0.1	5.0	1993	0.3	0.2
Month to Date	2.0			5.8	3.8
SINCE DEC 1	2.0			5.8	3.8
SINCE JUL 1	10.4			4.4	4.0
Snow Depth

Degree Days Heating

	Observed	Normal	Normal Departure	Last Year
Heating	45	52	-7	38
Month to Date	744	828	-84	726
SINCE DEC 1	744	828	-84	726
SINCE JUL 1	2653	2790	-137	2272

Degree Days Cooling

	Observed	Normal	Normal Departure	Last Year
Cooling	0	0	0	0
Month to Date	0	0	0	0
SINCE DEC 1	0	0	0	0
SINCE JAN 1	795	551	244	694

Wind

	Observed
Highest Speed	3
Highest Direction	3
Highest Gust Speed	3
Highest Guest Direction	3

Relative Humidity

	Observed	Time
Highest	3	3
Lowest	3	3
Average	3

Forecast

Skycover	POSSIBLE SUNSHINE: MM AVERAGE SKY COVER: 1.0
Conditions	LIGHT SNOW FOG HAZE

Climate Normals for Today

	Average	Record	Year
Temperature High	21°	55°	2011
Temperature Low	5°	-29°	1884

December 18 2012
Sunrise	808 AM CST
Sunset	440 PM CST
December 19 2012
Sunrise	809 AM CST
Sunset	440 PM CST

Source: National Weather Service Climate Report

Wind (mph)	Temperature (Fahrenheit)
0	35°	30°	25°	20°	15°	10°	5°	0°	-5°	-10°	-15°	-20°	-25°	-30°	-35°	-40°	-45°
5	31	25	9	13	7	-1	-5	-11	-16	-22	-28	-34	-40	-46	-52	-57	-72
10	27	21	15	9	3	-4	-10	-16	-22	-28	-35	-41	-47	-53	-59	-66	-77
15	25	19	13	6	0	-7	-13	-19	-26	-35	-39	-45	-51	-58	-64	-71	-81
20	24	17	11	4	-2	-9	-15	-22	-29	-35	-37	-44	-55	-61	-68	-74	-84
25	23	16	9	3	-4	-11	-17	-24	-31	-37	-44	-51	-58	-64	-71	-78	-87
30	22	15	8	1	-5	-12	-19	-26	-33	-39	-46	-53	-60	-67	-73	-80	-89
35	21	14	7	0	-7	-14	-21	-28	-34	-41	-48	-55	-62	-69	-76	-82	-91
40	20	13	6	-1	-8	-15	-22	-29	-36	-43	-50	-57	-64	-71	-78	-84	-93
45	19	12	5	-2	-9	-16	-23	-30	-37	-44	-51	-58	-65	-72	-79	-86	-93
50	19	12	4	-3	-10	-17	-24	-31	-38	-45	-52	-60	-67	-74	-81	-89	-95
55	18	11	4	-3	-11	-18	-25	-32	-39	-46	-54	-61	-68	-75	-82	-89	-97
60	17	10	3	-4	-11	-19	-26	-33	-40	-48	-55	-62	-69	-76	-84	-91	-98

	Increasing Danger (Frostbite in 30 min.)
	Heightened Danger (Frostbite in 10 min.)
	Great Danger (Frostbite in 5 min.)

Differences Between the new and old systems

Wind speed is now calculated for 5 feet off the ground. Wind speed was previously based on observations at 33 feet.
The calm wind threshold was lowered to 3mph.
A consistent standard for skin tissue resistance is now in use.
Measurements are based on how wind affects the human face, typically the most exposed portion of the body.
The table incorporates the theory that heat is lost from the body depending on its surroundings
The sun's impact is not factored into the wind chill temperature formula.