Fishing

October 2009

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North Carolina Climate, the monthly newsletter of the State Climate Office of NC, covers a monthly climate summary for September with impacts to agriculture and water resources, as well as a look into recently developed tools for displaying calculated temperature ranges for the 1971-2000 climate normals.
PDF version available for printing.

Climate Summary

Departures from Normal
Temperature and Precipitation by climate division
Departures from Normal for September 2009 - based on preliminary data.

The highlight for September 2009 in North Carolina was heavy rain that fell in western NC. Several locations in western NC experienced near-record rainfalls for the month. Damages in western NC were widespread, including flooding, tree damage, and crop damage. For much of the southern mountains, rain produced damage and flooding not experienced since the repeated tropical storm events in 2004.

In central and eastern NC, rainfall was generally below normal for the month. Parts of south-central NC experienced less than half of normal rainfall.

Temperatures in most of North Carolina were cool in September. Only western parts of NC experienced near-normal temperatures for the month.

MPE Precipitation
Precipitation for September 2009
Based on estimates from NWS Radar
Data courtesy NWS/NCEP

MPE Precipitation Percent of Normal
Precipitation for September 2009: Percent of Normal
Based on estimates from NWS Radar
Data courtesy NWS/NCEP

 

Impacts to Agriculture and Water Resources

Despite some dry conditions in parts of central and eastern North Carolina, most crops have received timely rainfall and soil moisture conditions in September and were generally adequate across the state. Cool temperatures kept evaporation rates low, and dryer conditions helped some growers with harvest. Heavy rainfall in western NC caused damage to crops.

Drought concerns in western NC were alleviated with the heavy rainfall west of the I-77 corridor. However, the lack of rainfall in central NC has resulted in streams and reservoirs that continue to be low for this time of the year. While minimal impacts have been observed, moderate drought (D1) was expanded to include much of south-central parts of the state. The NC Drought Management Advisory Council continues to hold weekly monitoring meetings to closely monitor for drought impacts.

 

Change in US Drought Monitoring Status during September 2009
Provided by the NC DENR Division of Water Resources

September 2009 Drought

 

Newly Calculated Ranges for Climate Normals

Every ten years the National Climatic Data Center (NCDC) calculates daily normal temperatures from thirty years of observed data for NWS Cooperative (COOP) Observing Network Stations around the country. Broadcast meteorologists often use the daily normals when comparing the high and low temperatures for each day. However, because of the variability of daily temperatures, nearly every day will be somewhat warmer or cooler then the daily normal for that day. This can make the daily normal temperatures misleading for many people without defining what is considered “normal”.

To answer this question, our office has released a tool to define the range of the normal temperatures, using the natural variability of daily temperature values. The Daily Normal Temperatures Tool will allow users to see the daily normal temperatures, their ranges and the daily temperature for last year for any location in their viewing area for a specific date or period of dates. This tool is linked to our Climate Normals page, which has also been updated to include information on the normal temperature ranges.

The updated Climate Normals page can be accessed through the “Data and Products” on the main menu, while the Daily Normal Temperatures Tool can be reached via the “Highlights” section on our home page:
http://www.nc-climate.ncsu.edu/normalstool.html
http://www.nc-climate.ncsu.edu/cronos/normals.php

 

Statewide Summary for September 2009

As part of the monthly newsletter, the SCO provides a basic summary of monthly conditions for all locations that have an automated reporting station. A daily version of this product is available online at:
http://www.nc-climate.ncsu.edu/cronos/review

Station
Avg Daily
Max Temp
Avg Daily
Min Temp
Total
Rainfall
Avg Daily
Wind Speed
Max Daily
Wind Speed
Vector Avg
Wind
Aurora, NC (AURO)
80.1° F
(-3.2° F)
4 mi
65.7° F
(+2.1° F)
4 mi
2.6 in
3.5 mph
19.8 mph
1.6 mph
North (3°)
Boone, NC (BOON)
69.9° F
(-0.4° F)
1 mi
53.6° F
(+3.6° F)
1 mi
6.9 in
3.2 mph
30.1 mph
0.4 mph
West Northwest (290°)
Buckland, NC (BUCK)
79.9° F
(-1.7° F)
15 mi
60° F
(+2.1° F)
15 mi
4.4 in
1.8 mph
15.2 mph
1.1 mph
North Northeast (16°)
Burnsville, NC (BURN)
72.2° F
(-4.1° F)
8 mi
56.4° F
(+6.4° F)
8 mi
6 in
3.5 mph
44.1 mph
1.6 mph
East Northeast (69°)
Castle Hayne, NC (CAST)
80.6° F
(-3.1° F)
0 mi
64.8° F
(+1.4° F)
0 mi
7.5 in
3.8 mph
21.9 mph
2.7 mph
Northeast (35°)
Clayton, NC (CLAY)
79.3° F
(-2.8° F)
3 mi
61.6° F
(+0.9° F)
3 mi
2.3 in
3.4 mph
24.9 mph
1.9 mph
North Northeast (27°)
Clayton, NC (CLA2)
81.3° F
(-0.8° F)
3 mi
59.2° F
(-1.5° F)
3 mi
2.1 in
2.1 mph
14 mph
1.4 mph
North Northeast (12°)
Clinton, NC (CLIN)
80.4° F
(-2.9° F)
0 mi
62.3° F
(-0.2° F)
0 mi
1.2 in
4.5 mph
21.8 mph
3 mph
North Northeast (26°)
Durham, NC (DURH)
80.6° F
(-0.4° F)
6 mi
58.9° F
(-1.4° F)
6 mi
3.4 in
2 mph
41.2 mph
1.2 mph
North Northeast (23°)
Fletcher, NC (FLET)
75.4° F
(-1.7° F)
0 mi
58.3° F
(+5.9° F)
0 mi
6.7 in
2.3 mph
21.3 mph
0.4 mph
West (272°)
Franklin, NC (WINE)
62.9° F
(-15° F)
11 mi
51° F
(-4° F)
11 mi
11 in
5 mph
18.7 mph
1.8 mph
South (187°)
Goldsboro, NC (GOLD)
79.9° F
(-4.4° F)
5 mi
61.1° F
(-2.4° F)
5 mi
1.5 in
5 mph
26 mph
3.2 mph
North Northwest (339°)
Greensboro, NC (NCAT)
77.7° F
(-1.7° F)
12 mi
60° F
(-0.1° F)
12 mi
0.1 in
3.2 mph
20.8 mph
1.9 mph
Southwest (219°)
Hamlet, NC (HAML)
83.7° F
(-0.1° F)
4 mi
61.3° F
(+1.7° F)
4 mi
0.1 in
3.7 mph
21.5 mph
2.1 mph
Northeast (39°)
Hendersonville, NC (BEAR)
64.9° F
(-13.1° F)
7 mi
54.9° F
(+1.5° F)
7 mi
9.5 in
7.5 mph
47.9 mph
1.3 mph
West (269°)
High Point, NC (HIGH)
78.2° F
(-3.4° F)
2 mi
58.9° F
(-0.9° F)
2 mi
0.4 in
2.1 mph
12.9 mph
1.1 mph
North Northeast (31°)
Jackson Springs, NC (JACK)
81° F
(-1.1° F)
0 mi
61.6° F
(-0.4° F)
0 mi
3.1 in
4.9 mph
26.3 mph
3.2 mph
North Northeast (30°)
Kinston, NC (KINS)
80.9° F
(-4.8° F)
5 mi
62.7° F
(-0.2° F)
5 mi
2.6 in
1.9 mph
20.8 mph
0.8 mph
North Northeast (20°)
Laurel Springs, NC (LAUR)
68.9° F
(-3.4° F)
1 mi
53.4° F
(+5.3° F)
1 mi
5.5 in
2.9 mph
35.7 mph
0.4 mph
South (180°)
Lewiston, NC (LEWS)
80.4° F
(-1.9° F)
0 mi
61.3° F
(+1.8° F)
0 mi
3.3 in
4.3 mph
29.6 mph
2.1 mph
North Northeast (21°)
Lilesville, NC (LILE)
83.1° F
(0° F)
9 mi
62.8° F
(+0.2° F)
9 mi
1.9 in
3.5 mph
5.8 mph
1.6 mph
North Northeast (13°)
Mount Mitchell, NC (MITC)
58.7° F
(-4.1° F)
1 mi
48.4° F
(+1.2° F)
1 mi
13.2 in
8.9 mph
59.3 mph
3.6 mph
West (269°)
Plymouth, NC (PLYM)
79.6° F
(-4° F)
2 mi
62.3° F
(-0.3° F)
2 mi
3 in
5.9 mph
23.9 mph
3.6 mph
Northeast (35°)
Raleigh, NC (LAKE)
79.8° F
(-2° F)
0 mi
61.7° F
(-0.6° F)
0 mi
3.3 in
4.1 mph
33.1 mph
2.4 mph
Northeast (35°)
Raleigh, NC (REED)
79.6° F
(-0.4° F)
3 mi
60.9° F
(-1° F)
3 mi
4.6 in
3.4 mph
28 mph
1.7 mph
North Northeast (33°)
Reidsville, NC (REID)
77.3° F
(-3.4° F)
0 mi
60° F
(+2.2° F)
0 mi
7 in
3 mph
19.4 mph
1.4 mph
Northeast (36°)
Rocky Mount, NC (ROCK)
80.7° F
(-1.6° F)
0 mi
61.3° F
(+0.6° F)
0 mi
2.8 in
4 mph
25.9 mph
2.6 mph
Northeast (39°)
Salisbury, NC (SALI)
78° F
(-2.3° F)
0 mi
59.9° F
(+1.8° F)
0 mi
2.8 in
2.3 mph
19 mph
1.4 mph
Northeast (36°)
Siler City, NC (SILR)
78.3° F
(-2.9° F)
5 mi
57° F
(-2.3° F)
5 mi
2.1 in
4.1 mph
28.1 mph
2.7 mph
Northeast (39°)
Taylorsville, NC (TAYL)
76.5° F
58.7° F
2.8 in
1.6 mph
45.9 mph
0.6 mph
Northeast (37°)
Wallace, NC (WILD)
81.1° F
(-4.3° F)
8 mi
62.7° F
(-1.2° F)
8 mi
2.7 in
4.1 mph
39.1 mph
2.8 mph
North Northeast (29°)
Waynesville, NC (WAYN)
73.9° F
(-2.3° F)
0 mi
56.4° F
(+6.3° F)
0 mi
7.3 in
0.9 mph
20.3 mph
0.5 mph
North Northeast (14°)
Whiteville, NC (WHIT)
82.5° F
(-3.8° F)
0 mi
62.6° F
(+0.8° F)
0 mi
1.9 in
2.1 mph
15.1 mph
1.2 mph
North Northeast (33°)
Williamston, NC (WILL)
80.1° F
(-1.8° F)
4 mi
62.6° F
(+0.8° F)
4 mi
0.4 in
3.2 mph
22.3 mph
1.4 mph
North Northeast (16°)
Legend:
Parameter
Parameter's value approximated from hourly data.
( +/- Departure from normal )
Distance to reference station

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